Plant for simultaneously manufacturing of different type tires

FIELD: tire industry.

SUBSTANCE: proposed plant contains great number of working units operating successively. Plant is furnished with central processor made for setting successive execution of great number of operations at working stations. Each working station contains at least one unit of indicated working units according to one or several set sequences of tire types. Plant includes also local processor connected with each working station and made for determining type corresponding to drum found in each of said working units. Local processor provides selection of definite procedure from preset group of procedures for each of said working units designed for type of tire corresponding to drum to be used in operation. Invention reduces to minimum downtimes for changing type of tire to be manufactured and makes it possible to manufacture lots of tires of different types without changing equipment producing tire semifinished products.

EFFECT: provision of automatic manufacturing of different type tires.

9 cl, 3 dwg

 

The invention relates to an apparatus and method of manufacturing different types of tires.

Tire for automobile wheels usually contains the design of the frame, essentially consisting of one or more layers of skeleton that has essentially the form of a toroidal configuration and in which their opposite in the axial direction of the side edges coupled with respective annular reinforcing structures, including passing circumferentially inextensible reinforcing ribbons, commonly called "wire bead cores". Each annular reinforcing structure is part of the so-called "Board", made passing along the inner circle of the edge of the tires to attach the tire to a corresponding mounting rim.

The design of the breaker containing one or more lanes of the breaker in the form of a closed loop, essentially consisting of textile or metal cords, appropriately oriented relative to each other and relative to the cords belonging to the adjacent layers of the frame, is placed on the design of the frame in a radial outer position.

Strip protector, usually a strip of elastomeric material of appropriate thickness, also put on Bracero design in the radial outer position.

It should be noted that in this description Ter is in "elastomeric material" refers to a rubber mix in its entirety; i.e. all material is formed of at least one polymer basis, accordingly amalgamating with reinforcing fillers and/or process additives of various types.

A pair of sidewalls, each of which covers a side portion of the tire between the so-called shoulder area of the tire near the respective side edges of the tread strip and the respective Board, applied on opposite sides of the tire.

It should be noted that in this construction each type of tyre essentially differs from the other by a combination of chemical and physical, structural, dimensional and external characteristics.

Chemical and physical characteristics essentially relate to the type and composition of materials, and in particular, compositions of the various mixtures used in the production of elastomeric materials. Structural characteristics essentially determine the number and type of tire structural components and their arrangement relative to each other in the construction of tires. Dimensional characteristics are related to the geometric dimensions and the cross-sectional profile tires (outer diameter, the maximum width of the fabric, the height of the side wall and their ratio, i.e. the ratio of the cross section) and hereinafter simply referred to as "specifications". External characteristics are vashnu the shape of the rolling surface of the tread, decorative drawings and different inscriptions or marks made on the bus; and next, here referred to as "tread pattern".

Conventional methods of manufacturing include four different stages of the manufacture of tires:

A) preparation of mixtures,

B) the production of certain structural components

C) sequential Assembly of the various structural components with getting tires-semi-finished product on the drum or the corresponding support,

G) vulcanization of the tire, of the material with subsequent stamping tread on the outer surface of the tire.

In this invention, the term "tyre" means a tyre with certain technical characteristics, members of structural components, and with a specific tread pattern.

To reduce production costs of technological development mainly focused on the search for technical solutions, which should ensure the production of more high-speed and reliable equipment to minimize the time required to manufacture each tire, while maintaining or improving the quality of finished products.

High-performance - from the point of view of the number of products per unit of time - units use technological equipment, which reduced the options for modification (or otherwise nd the orya which can produce only a limited range of types of tyres), but maximizes the production of tires with the same structural characteristics. For example, the performance of the most modern plants can reach up to approximately two frames per minute, and the average overall performance of the month for each product (tyre size) may be 3200 pieces, and switch to production of other products is 375 minutes

Also attempts have been made to reduce or eliminate the storage of semi-finished products between different four above production stages to minimize the cost and problems whenever you need to replace produced the type of bus. For example, in EP 922561 proposed a method of controlling the production of tires, whereby to reduce or eliminate time storage of tires-semi-finished products and the number of stored tire-semi-finished products provide comprehensive installation vulcanization with multiple molds made with the possibility of continuous production of a comprehensive set of tires. Manufacturing different types of tires, especially tires with different technical characteristics, provide by replacing and/or modied from time to time equipment a comprehensive set of tires along with the replacement of the molds in the complex setting of vulcanization.

p> It was found that in all cases the production of tires entails costs, increasing with the increase in the diversity of types of manufactured tires: in particular, it is necessary to intervene in processes and/or work units production of the mixture, to allow the production of components with new or different physical and chemical characteristics, and/or in the operation of the production facilities of the individual structural components to modify the technical characteristics of tyres. You also need to change the working sequence (another method) and/or equipment and adjustment of the production equipment whenever you make changes in design and/or technical characteristics of tyres. Finally, you must have at least one vulcanizing mold for each different pairs of "tread pattern - technical specifications".

All this leads to additional costs for the purchase of moulds with different characteristics and with different patterns of the tread and on the purchase of other equipment; incurs costs of its installation, production loss due to equipment downtime (change of process or equipment usually leads to downtime and loss of material. For example, the R, in the case of continuous production components: simple future installations and/or changes in the characteristics of components gives a surplus production that you want to reject, because its recurrent use.

In view of the above, the production of a large number of bus types in a single unit essentially undesirable, especially if the objective is to minimize costs. In fact, this task is incompatible with frequent changes of equipment and technological processes. It was observed that the application of manufacturing processes of conventional type, when the volume of sales of each type are quite high, the number of production plants can be multiplied in such a way as to provide the possibility of continuous production differs from other types in each setting, thereby minimizing the disadvantages indicated above. On the other hand, if the amounts of the estimated sales for certain types of particularly small, such as annual sales, it is also possible in each case to maintain all production of at least one year directly and continuously to keep production costs for these types. However, this system may adversely affect the quality of the products sold and to increase inventory costs because the product remains in the form of tons of the commodity stock in the long term. Risk also increases sales, for example, as a result of unforeseen rapid obsolescence of products; and increase the financial costs of capital associated in inventories of products and installation costs of molds that are used only during a limited period necessary to complete the projected production of low volume.

To solve these problems was developed production method, according to which each group of tires, same with the other group from the industrial point of view, divided into daily batches, each of which contains the number of tires, which is sufficient for daily performance of one of the mold. Thus, the production of tires with different technical characteristics and/or different structural characteristics optimize by eliminating the need for storage of large quantities of tires and semi-finished vulcanized tire. This method is described in patent application EP 875364.

In the installation process: stage vulcanization of tires perform during the period, which is essentially the same for assortments of all types of tyres, but on the other hand, the time of manufacture of the tires is significantly different in accordance with the type manufactured tires. Moreover, the application of even one component is different duration of the La different types of tires.

This circumstance prevents frequent changes of the type described in the above setup, since the need to provide some time waiting for stage vulcanization will occur whenever vulcanicola bus is a different type, different from previous technological sequence tires-semi-finished products.

In addition, frequent changes in the type of tyres in the same technological party also causes a change in the equipment for manufacture of different types, resulting in waiting times increase even more.

In this invention: the term "serial process unit" means a unit in which the individual processing steps of the bus carried out according to a prescribed sequence, i.e. in this sequence each processing stage bus begins immediately after the end of the previous stage.

It was found that in the serial process plant total time of the production process depends on the slowest process step.

In this invention: the term "critical technological period" means the technological period, during which during the process sequence for the production of tires any hardware changes are not planned.

We solved the problem management function and installation so during the same critical period produce distinct from other types of tires, and minimized waiting periods, mainly because of the different speed stages of manufacturing tires-semi-finished products.

According to this invention provides the facility for production of tires, in which different types of tires can be produced within the same critical technological period, without increasing the waiting period.

In particular, the proposed installation for the manufacture of tyres-semi-finished products of different types by sequential Assembly of components on toroidal drums set sizes. Therefore, after determining the number of produced tires for each type during the critical period, it will be possible to determine the sequence of introduction of the different drums in the installation and the sequence for the different process stages, and this will provide the ability to withstand essentially constant average production quantity of tyres-semi-finished products for this critical period. In this installation: the process and the sequence of applying the different components on the drum are not the same for all types of tires, and different types of produce during the same critical period.

The bus collected in successive working station is s, each one of these components the individual components is applied to the drum.

Offer installation, in which each workstation runs the local processor is configured to identify the entering drum and, consequently, the type of tyres. Each local processor manages communication with the Central processor that controls the passage of the drum from one workstation to another and distributes running on different workstations.

One of the hallmarks of this invention relates to an apparatus for the simultaneous production of different types of tires containing many business units operating in series, characterized in that it contains:

the Central processor is configured to set the serial execution of a set of work steps in workstations; each of them contains at least one block from among these business units according to one or more predetermined sequences of types of tires;

the local processor associated with each workstation and executed with the ability to identify the type of tire that matches the drum to be given to each unit of the specified business units, and with a choice of one procedure from among pre-set the nd group operating procedures for each of these business units, which is specific for that type of tire, which corresponds to the drum, which produce the work.

Each drum contains a code that identifies the type manufactured tires on it.

Each workstation contains at least one reading device that reads the code identifying the type of tyre.

The identification code is preferably marked on the shaft of a drum.

Code identifying the type of tyre, is preferably a bar code.

A reading device that reads the identification code, preferably associated with each block of the number of working units.

A reading device that reads the identification code, preferably associated with the robotic arm of each business unit.

This invention relates also to a method of manufacturing different types of tires in the auto setting, containing a set of business units operating in series, in which

in the Central processor set the serial execution of a set of work steps in the process units according to one or more predetermined sequences of types of tires;

identify the type of tyre corresponding to the drum to be given to each block of the number of working units;

from among a given group of operating procedures, DL is each of the work units to choose a specific procedure for that type of tire, which corresponds to the drum, which produce the work.

The specified stage type bus includes a read operation code identifying the type belonging to the drum, which produce the work.

Other characteristics and advantages will be clear from the following detailed description of the present invention with reference to the accompanying drawings, given only as an example and is by no means limiting.

Figure 1 shows the layout of the installation in accordance with this invention.

Figure 2 schematically depicts the stages of the manufacturing process according to this invention.

Figure 3 schematically shows the connection between the blocks setup, depicted in figure 1.

1 shows a plant for manufacturing tyres according to this invention, which contains the complex manufacturing unit 2 for the production of tires-semi-finished products, where each of the processed tire is made by assembling its components according to the specified sequence; and the complex vulcanizing unit 3, in which each bus coming from the complex manufacturing unit 2, vulcanized in the corresponding press-fit 34, 35, 36, 37, 38, 39.

The complex manufacturing unit 2 contains a set of workstations 5, 6, 7, 8, 9, 10 posted by sequentially on technological route, which preferably has the form of a closed loop, indicated by the arrows 11 in figure 1. This line also has a feed station 20, the device 21 temperature stabilization, the first station 22 extracts, multi-station 23 exposure, the second exposure station 24, a third exposure station 25 and the end station 26 excerpts.

Workstations 5, 6, 7, 8, 9, 10 made with possibility of simultaneous actions, each station operates with at least one made-bus - collects at least one of its structural components on the bus.

In particular, during Assembly of the different stages of structural components used in the production of each tire that is properly installed on the supporting element, which is preferably toroidal support or drum, the profile of which essentially reproduces the internal configuration of manufactured tires. This toroidal support is made in such a way that it can easily be removed from the bus upon completion of manufacture.

At least first and second bus type can be processed at the same time as in the complex manufacturing unit 2, and the complex vulcanizing unit 3. For example, in the following description with reference to the arrangement according to figures 1 and 2, two different types of tyres different from each other from the point of view of their GABA is etnich characteristics, process at the same time. It is clear that it is also possible to work simultaneously with different number types, which are in addition to or instead of the dimensional differences may be differences in respect of structural components, and/or chemical and physical characteristics, and/or external characteristics.

According depicted in the drawings, layout: toroidal support and any processed tires pictured are the same and denoted by the letters a and b, each of which represents a specific bus type.

It can be noted that the input bus is distributed through an integrated production unit 2 in such a way that different types a and b follow each other in sequence. In addition, the given sequence of tires produced during the critical period can be divided into groups that have the same sequence of tires or having different sequence according to the types that are produced in each group. According to the example depicted in figure 1: a group of six tires a, b, b, a, In, And distributed along the line of the production plant 1. According to this example: only six toroidal supports, each of which produces a corresponding bus, thus simultaneously work within the complex manufacturing unit 2.

It should be noted that in the data description, the term "group" means a set of different or the same type of tire, which follow each other in sequence. In the complex manufacturing unit 2 can be used, for example, a set of groups, each of which consists of different types of tyres, which preferably follow each other cyclically; for example, in the sequence a, b, a, b, or where each of them is preferably comprised of a tire of the first type between the two tires of the second type; or the group each of them consists of tires that are all the same type; either from different combinations of these sequences.

Device for functional transfer and movement of tyres in the installation sequentially transfer each of the manufactured tires a and b from one of the workstations 5, 6, 7, 8, 9, 10 the complex manufacturing unit 2 in the following and in the complex vulcanizing unit 3. These devices also move toroidal support during application of at least one component from among these components.

This functional movement includes rotation of the toroidal support around its axis and rotation and/or linear movement of the axis in space.

These devices preferably contain robotic manipulators R1, R2, R3, R4, R5, R6, R7 and R8, each of which is associated with at least one of the work stations 5, 6, 7 8, 9, 10 and executed with the opportunity to act on a separate toroidal bearings And or to carry out the sequential transfer of each manufactured tires.

The bus is made by moving the toroidal support and its orientation in space and by applying extruded structural components - circular and axial application.

Robotic manipulators preferably support the toroidal support so that they stand out: i.e. capture them only on one side of the axis of rotation, thereby providing various components of the possibility of their application around the axial direction of the support, which has the curvature of the two curves.

The processor gives commands by wrapping a loop route and determines the number and composition of the group of tyres within the right of the critical period. This unit is made with the possibility of device management functional transfer and movement in such a way as to coordinate the production stages of each type of tyres in the complex manufacturing unit 2 and in the complex vulcanizing unit 3.

In particular, according to the illustrated implementation provide robotic arm R1 moving along the guide structure 19, if necessary, and acting between the complex manufacturing unit 2 the complex vulcanizing unit 3 - takes the finished tire from the vulcanizing unit and transfers it to the first working station 5, where the tire is removed from the respective toroidal supports the robotic arm R8. Toroidal support And retrieved from the bus, then transferred to the first robotic manipulator R1 from the first workstation 5 in the device 21 temperature stabilization.

If this type of tire you want to use toroidal support, which differs from that before it was removed, then the robotic arm R1 takes the relevant toroidal support from the feeding station 20, and enters it into the device 21 temperature stabilization.

This device 21 brings the toroidal support to a preferred temperature to provide further processing and, in particular, to provide adhesion of the first layer of elastomeric material with metal supports. This temperature is preferably in the range from 80 to 90°C.

The second robotic arm R2 transfers the toroidal support from the device 21 temperature stabilization in the second work station 6, which collect the first structural components of the tire. This Assembly operation, for example, involves the application to the outer surface of the toroidal support And a thin layer of airtight elastomeric material, which is typically called the casing and put oblits the adjustment process unit 61; and imposing elastomeric strips in areas corresponding to the sides of the tires; and/or the formation of an additional cladding layer of elastomeric material, which have a top cladding using sueblinvong process block 63.

In the second work station 6, and also in the rest of the stations 7, 8, 9, 10 each structural component of the tyre preferably form together with the described above stage Assembly by processing at least one semi-finished product that is identical to each of types a or b and which provide a specified amount according to the type of tyres.

In particular, the second workstation 6 production coating, elastomeric strips and/or additional cladding layer preferably can be accomplished by winding at least one prosobranch element of elastomeric material on the treated toroidal support And consistently as adjacent to each other and, if necessary, at least partially imposed on each other turns; and this element has a width of, for example, from 0.5 to 3 cm and is taken directly from the respective extruder, with a reel or other suitable feeding device relating to the second work station 6.

Winding coils can be predpochtitelnei by the second robotic arm R2 will perform the function of holding toroidal support And using the corresponding exciting and driven elements and a function of rotation around its axis, thereby appropriately moving it before the pressure rollers or equivalent devices (not shown), causing the components, together with the feeding devices in such a way as to ensure proper distribution strip element on the outer surface of the toroidal support. A more detailed description of the method of application components on the toroidal support with the use of a robotic manipulator, see European patent application No. 98830762.5, which is described in this description by reference.

Upon completion of Assembly of the components in the second work station 6, the second robotic arm R2 places the toroidal support with the corresponding generated by the bus in the first station 22 extracts. The third robotic arm R3 takes toroidal support from the first exposure station 22 and transfers it to a third work station 7, where the collected structural components involved in shaping the design of the tire carcass.

In particular, in the third work station 7 form and collect one or more layers of a frame with a pair of annular reinforcing structures on the plot is, the respective sides of the tire. Similar to the way described with reference operations performed in the second work station 6: each of these structural components is made directly at this stage of Assembly with the main material, supplied in a predetermined quantity according to the manufactured type.

For example, the layer or layers of the framework can be formed by sequential deposition on the toroidal support together bands, separately cut from the continuous strip formed by the canvas rubberized cords laid parallel to each other. In turn, each annular reinforcing structure may contain inextensible circumferentially reinforcing ribbon, comprising, for example, at least one wire element is wound in the form of a set of radially imposed on each other coils, together with the filling insert of elastomeric material, which may be performed by applying an elongated elastomeric element is wound in the form of a set of adjacent axially and/or radially imposed on each other turns.

The specified element of a continuous strip of metal wire element and an elongated elastomeric element, which together form the primary material used is been created in the specified quantity to produce the corresponding structural component, you can pick up, each of them, directly from the extruder, bobbins or other appropriate feeding devices associated with the third work station 7.

For further details on the method of production of a design framework, see European patent application No. 98830472.1, which is described in this description by reference.

According to the illustrated arrangement of the drawings: the third work station 7 is made with the possibility of making such constructs of the framework, which are described in European patent application No. 98830662.7, which is described in this description as a reference. Described in this patent application framework contains two layers of the frame, each of which consists of the first and second groups of strips applied in alternating sequence on the toroidal support. Each Board the bus also uses a pair of annular reinforcing structures described above; and each of these designs is inserted between the end side tapes relating to the first and second groups, respectively, and forming one of the layers of the framework together with the inextensible reinforcing ribbon placed on the outside relative to the second layer of the framework.

To facilitate sequential Assembly of different structural components in the given order: the third work station 7 has at least t and different work station, accordingly intended for applying strips (block 71), a metal wire element (block 72) and the elongated elastomeric element (block 73) and acting together: each made on the appropriate bus. Therefore, three tires, even if they are heterogeneous, can be processed simultaneously in the third work station 7; in this case, each of the tires is sequentially transferred from one process unit to another until you have completed the design of the frame. Sequentially transferring bus in different process units in the third station 7, you can use a third robotic arm R3, which, if necessary, helps the fourth robotic arm R4 and/or any need for assistive devices and multiple station 23 extracts, which at the same time can be several toroidal supports. This system allows to minimize the waiting time, when manufactured in this station bus according to its type, different from the other; since there is the possibility of using multi-station 23 extracts for types that require a longer time in the most favorable moment, due to rearrange the sequence of receipt toroidal supports in the workstation. According to figure 1 block 71 for applying layers of frame throu the bus type and the block 72, causing the wire core Board, working with the bus type A.

Upon completion of the framing of the fourth robotic arm R4 delivers the toroidal support to the second exposure station 24.

The fifth robotic arm R5 takes toroidal support from the second station 24 extracts and transfers it to the fourth station 8 extracts, which according to the illustrated example operates with toroidal support type A. In the fourth workstation 8 produce and assemble structural components forming Bracero the design of the tyre. In particular, the first processing unit 81 in the fourth workstation 8 deals directly formed on the frame construction two podbregar strip around the circumference of the shoulder areas of the tire. These podbregar strip can be ekstradiroval directly from the extruder and applied by pinch rollers or equivalent devices application. The second process unit 82 generates the first and second Bracero strip on the design of the frame; each strip is formed by sequential deposition of individual strips that are placed in adjacency to each other around the circumference; each strip is made by slicing on a specific element of a continuous strip, comprising of cords, kotoryeprodayut to each other, and parallel to each other and included in the elastomeric layer. Following the process unit 83 generates the following Bracero strip by winding a continuous cord coils that are axially adjacent to each other in the radial direction are imposed on the lower bracerie layers. Other options possible method of fabricating braceros design described in European patent application No. 97830633.0, which is described in this description by reference.

Upon completion braceros design sixth robotic arm R6 transfers the produced tire in the fifth workstation 9. In the fifth workstation 9 toroidal support In holding a robotic arm R6, which imposes a tread strip, which is formed by winding at least one elastomeric strip element in the form of successive adjacent and radially superimposed on each other turns to get the tread strip to the desired configuration and thickness. In the illustrated example, this operation performs two blocks 91 and 92. Upon completion of these operations the sixth robotic arm R6 puts toroidal support in a third exposure station 25.

The tire is then transferred in the sixth workstation 10, which according to the illustrated example in the work is the bus type A. In the sixth RA is the sight of the station 10 toroidal support keeps the seventh robotic manipulator R7, which moves it accordingly before the respective process units for applying the abrasion-resistant elements on the sites corresponding to the sides (block 101), and for the application of the sidewalls, which are also made by winding at least one elastomeric strip adjacent and/or overlapping coils (block 102).

Upon completion of this operation the seventh robotic manipulator R7 places made the bus Terminus 26 of the passages where the tire can withstand before it is transferred to the complex vulcanizing unit 3.

Each of the workstations 5, 6, 7, 8, 9, 10 not only has the one or more process units, but also includes a feeding device for feeding the main elements required for production of the corresponding structural component, and operates in conjunction with the devices application in the specified blocks, which are the main element and/or manufactured structural component produced on the bus.

The complex vulcanizing unit 3 preferably contains at least one set of vulcanizing molds 34, 35, 36, 37, 38, 39, the number of which is equal to the number of tires in the specified group of tyres, manufactured in the complex manufacturing unit 2. In the illustrated example, there are six vulcanizing molds 34, 35, 36, 37, 38, 39, and each is I one of them meets the specifications of one of the types of tyres, made on the lines of the complex manufacturing unit 2.

Molds 34, 35, 36, 37, 38, 38 preferably mounted on the rotary platform 30, is configured to stepwise rotate so that the mold along the trajectory in the complex vulcanizing unit 3 sequentially one after another to a loading and unloading station 40 for a produced tire. It is preferable that the rotary movement is as follows: first turn in the first direction of rotation, then the rotation in the direction opposite to the first. Either this rotation may be a rotation type closed loop.

In each of these molds 34, 35, 36, 37, 38, 39 feed steam under pressure corresponding connectors (not shown)passing radially from the Central column, which is integrated or connected otherwise the steam supply device, such as a steam boiler. All rotary platform 30 is preferably placed inside an isolated structure having at least one access hole, located near to the loading and unloading station 40, to prevent excessive heat dissipation in the environment.

Reposting manufactured tires in appropriate molds 34, 35, 36, 37, 38, 39 preferably realized by means of robotsarah the aqueous manipulator R1 in Tempe, equal to the rate of completion tires-semi-finished products, manufactured in workstations, distributed along the line of the complex manufacturing unit 2.

Described as an example, the device operates according to the following schematically represented in figure 2 the steps involved in the movements of robotic manipulators R1, R2, R3, R4, R5, R6, R7 and R8. According to figure 2 and the following description: the stages indicated by the letter T with the increasing number, refer to the tyre manufacturing intermediate product; and stages, indicated by the letter C with increasing number refers to the vulcanization of tires and removal of the toroidal support.

T1) Robotic arm R1 takes toroidal support, hereinafter called the "core"of the feed station 20 and inserts it into the device 21 temperature stabilization.

T2) Core extracted from the device 21 robotic manipulator R2 and set before extrusion cylinder head 61. Manipulator R2 rotates the core so that the extruder causes the strip of elastomeric material on the surface of the core.

T3) Robotic arm R2 sets the core before extrusion cylinder head 62. Manipulator R2 rotates the core so that the extruder causes the strip of elastomeric material on a certain part of the surface of the core.

T4) (option) Robotic shall manipulator R2 places the core in front of the extrusion head unit 63. Manipulator R2 rotates the core so that the extruder causes the strip of elastomeric material near the side of the core.

T5) Manipulator R2 places the core in the first exposure station 22.

T6) Robotic arm R3 takes the core from the first exposure station 22, and enters it in the block 71 application layer frame where put the first several layers of the framework.

T7) Robotic arm R3 takes the core from the block 71 application layer frame and puts it in block 72 of wire drawing Board, where a pair of annular reinforcing structures applied to the core in the areas corresponding to the side of the bus.

T8) Robotic arm R3 takes the core from the block 72 of wire drawing Board and places it in one of the locations multi-station 23 excerpts.

T9) Robotic arm R4 takes the core from position 23 extracts and places it in front of the extrusion head unit applying an elastomeric filler. Manipulator R4 rotates the core so that the extruder is making a strip of elastomeric material on a Board made of tires.

The previous three steps can be repeated several times according to the type of manufactured tires. This is done using a multi-station 23 extracts with multiple locations, each of which is done is but with the ability to hold one core, and also has two robotic manipulator R3 and R4 to produce the design of a frame.

T10) Robotic arm R4 puts the core into the second position 24 excerpts.

T11) Robotic arm R5 takes the core from the second position 24 extracts and places it in front of the extrusion head unit 81 application podbregar strip. Manipulator R5 rotates the core so that the extruder causes the strip of elastomeric material in the shoulder areas of the tyre.

T12) Robotic arm R5 introduces the core in block 82 application braceros strip.

T13) Robotic arm R5 takes the core from the block 82 and enters it in the process unit 83, which forms the subsequent brickery layer by winding a continuous cord coils in the axial direction adjacent to each other and in radially superposed on bracerie layers beneath them.

T14) Robotic arm R5 places the core back into the second position 24 excerpts.

T15) Robotic arm R6 takes the core from the second position 24 extracts and places it in front of the extrusion head unit 91 application pageprotection strip. Manipulator R6 rotates the core so that the extruder causes the strip of elastomeric material on the crown area of manufacturing is by bus.

T16) Robotic arm R6 puts the core before extrusion Golovaty block 92 applying the tread band. Manipulator R6 rotates the core so that the extruder causes the strip of elastomeric material on the crown area of manufactured tires.

T17) Robotic arm R6 places the core in a third exposure station 25.

KZT18) Robotic manipulator R7 takes the core from the third station 25 extracts and places it in front of the extrusion head unit 101 applying the abrasion-resistant layer. Manipulator R7 rotates the core so that the extruder causes the strip of elastomeric material on a Board made of tires.

Kzt19) Robotic manipulator R7 places the core in front of the extrusion head unit 102 application side. Manipulator R7 rotates the core so that the extruder causes the strip of elastomeric material on the flanks of manufactured tires.

T20) Robotic manipulator R7 places the core in the final station 26 excerpts.

Prefabricated bus is now ready, and the subsequent stages belong to the vulcanization of the tire and remove it from the core.

C1) Robotic arm R1 takes the core with which it made the bus and transfers it into a complex vulcanizing unit, and in particular the free vulcanizing mold 39.

C2) Vulcanizer closes the mold and rotated one position. Bus vulcanized during one full rotation in the device vulcanization. At the end of each phase of the rotation in each mold from other molds load vulcanizing bus-belts.

C3) a First robotic arm R1 takes vulcanized tire, together with the relevant toroidal support from the mold 39 and places it in the first production station 5 to station 16, to remove the toroidal support.

C4) the Eighth robotic arm R8 removes the toroidal support and places it in the station 28 regeneration.

C5) the Eighth robotic arm R8 takes vulcanized tire and places it on the platform 14 of storage, where previously manufactured at this facility bus warehoused prior to subsequent stages of finishing and control.

The method of processing individual tire through an integrated production unit 2 is such that the structural component in the production process, it is preferable to apply regardless of the production end of another component directly on the previous bus. A feature of this invention is that the structural components of the tyre prepare essentially at the time of their application, thereby obespecheniyavozmozhnost work without previously manufactured semi-finished products, and the ability to adapt each unit manufactured directly on bus type, resulting preclude loss of material.

In this case, the operation of each process unit, located in a separate workstations 5, 6, 7, 8, 9, 10, and each arm regulate programmed by the local processor, and therefore the amount of the basic semi-finished properly regulate, along with the movement of the toroidal support to ensure proper formation of individual structural components manufactured tires. In particular, this local processor can be programmed so that in each separate workstation from time to time to adapt the work process units manipulators of the type manufactured tires.

In addition, to make the installation more flexibility in the work, without limiting set sequence of different types of tires, each of the workstations 5, 6, 7, 8, 9, 10 preferably associated with the devices, determining the type manufactured tires and interacting with choosing devices to determine the number of basic elements used for the production of each structural component in this workstation. For example, these identification devices may contain citymouse device for reading bar codes or other types of code toroidal support bus, you can identify the appropriate reading devices, the local processor to select the number of semi-finished products, for example, by using a predetermined table of values.

When the bus is transferred into any of the workstations 5, 6, 7, 8, 9, 10, the device reads the bar code identifies the type of bus, thereby allowing the local processor to set an appropriate work programme this workstation is in addition to or instead of the instructions received from the Central processor.

In particular, figure 3 shows the layout of explaining the connection between the CPU 111 and the local processor 106, 107 and 108 associated with each of the working stations 6, 7 and 8. Shows only three workstations: the second work station 6, the third work station 7 and the fourth working station 8, which respectively cause the facing layer, the design of the frame and Bracero design. In each station shows the unit manufacturing semi-finished products 206, or 207, or 208, also called feeder main material for placing it on the drum. In the second workstation 106 this unit 206 produces an elongated elastomeric element; in the third workstation 107 this unit 207 produces the continuous strip element formed, for example, from the fabric rubberized cords, parallel to the s to each other; in the third station 108 this unit 208 produces a continuous ribbon, comprising, for example, from the set of the cords adjacent and parallel to each other and contained in the elastomeric layer.

Each of the blocks in the manufacture of semi-finished products 206, or 207, or 208 manages communication with the respective local processor 106, or 107, or 108. Program to accommodate semi-finished products on the drum corresponding to the types manufactured in the installation of tires, load in each local processor associated with the given workstation. The database 222, which can query a Central processor contains all programs to accommodate different components for those types of tyres that can be produced in the plant. This database always correct when moving to the release of the new type.

Programs contain commands robotic manipulators relative movement of the drum and commands for blocks for the manufacture of semi-finished products. These programs are preferably prepared at the start of the installation to the local processor according to perform their operations.

The sequence of operations is as follows.

The CPU 11 accepts the production request indicating the manufactured types, their size and number.

This processor prepares one or more groups of izgotavlivaet who's a continuous stream of tires; and for each workstation by each local processor provides the opportunity to take the drum out of the station excerpts compliance with the specified sequence. The Central processor also desired positions of the mold for vulcanizing the turntable for the production of these types.

Each local processor recognizes pick up the drum with the help of the mentioned located on the drum identification means, for example, using the specified bar code. Recognition of the drum and therefore the type manufactured tires allows the local processor to run the appropriate program to perform work on the drum for this workstation. In the end, each local processor sends a signal to the Central processor which controls the flow of produced tires and which determines them to move from one workstation to the next.

For example, the barcode may be specified on the shaft of the drum. The robotic arm picks up the drum, grabbing him by this shaft.

The reader of the specified bar code is preferably associated with each work unit. More preferably, these devices read the specified barcode were associated with each workstation. In addition, these devices read the barcode which may be associated with each robotic manipulator each workstation.

Moving the manufactured tire is preferably controlled as a continuous stream; the complex manufacturing unit 2 is directly connected to the complex vulcanizing unit 3; and the gradual migration of individual tires perform in the rate equal to the rate of completion of tyres in the complex manufacturing unit 2, thus it is advisable eliminating the need for storage of tires-semi-finished products at intermediate points between the production unit and the complex vulcanizing unit.

The ability to change the Assembly sequence of the different structural components according to the type of manufactured tires-semi-finished product makes possible the coordination of the average time of manufacture to the time of vulcanization.

In the above description discussed the production of two different types: a and B. the First type And refers to the tire specifications 195/65 R15 and type refers to the tire specifications 225/50 R16. Type a has a single row of frame layers, and the type contains a double row of frame layers. Because of the different sizes and therefore different amounts of two different types to type In the processes require more time than the processes for type A. although the processes of the first, second, fourth and fifth workstations compatible with full cycles of time, the process in tre is gay workstation 7, where made frames, is significantly different for these two types, especially when you want to repeat the blending of a number of frame layers for type C.

If these processes run sequentially, it will be necessary either to extend the cycle according to the type for which you want more time, or to provide additional workstation.

But a pair of robotic manipulators R3 and R4 and multi-station 23 extracts can change technological sequence.

For example, if the first bus, which should come in the third work station 7 is the bus type, i.e. the type for which you want a longer processing time, then the given process sequence modify. This can be done due to the fact that for some processes require less time than the rate constant provide complex vulcanizing unit bus for each rotation of the turntable 30. Therefore, there is a possibility of recovery of useful time to change the sequence.

Production time in each processing block and the transfer rate are determined in accordance with the number of stages of moving along the line of the complex vulcanizing unit 3, and therefore each tire And can remain integrated Wu is ganizational block over time, at least enough to complete vulcanization.

For example, in the fabrication of the frame (the third workstation) for type a required minimum production time approximately 1.5 min; and for type In the required minimum production time is about 3 min, because this type will have a double layering of the frame according to the above description.

In workstations, which cause the lining and podbrezova (second workstation), Bracero design (fourth workstation) and sidewall and resistant to abrasion strip (sixth work station), minimum production time is less than 2.5 minutes for both types a and B. the workstation, which causes the tread band (fifth workstation), required (minimum) production time is about 2.5 minutes for both types a and B.

The complex vulcanizing unit 3 has six vulcanizing molds to perform vulcanization under given conditions, each mold must remain in the vulcanizer for 15 minutes To ensure that this period of vulcanization, when the rotary bearing of the vulcanizer has six stages of rotation, one bus must be submitted in the complex vulcanizing unit every 15:6=2,5 minutes

In accordance with the above data, this time is compatible with with the OK stations 6, 8, 9 and 10, while the third work station 7 is critical, because the type In the necessary production time, which is too long for the desired pace.

To ensure the implementation of the third stage include a set of group types, originally filed in the complex manufacturing unit.

Each group consists of bus types, equal to the number of vulcanizing molds.

Each group consists of three types of tires and three tire type according to the following first order: A1 B1 B2 A2 B3 A3 (three numbers 1, 2, 3, etc. corresponding to each of the types a and b in the sequence indicate the temporal sequence of different types of tyres supplied in the sequence).

After application of coating and podobicski (second workstation) the order of each group remains unchanged.

In the third workstation for the process sequence, for example, requires the following successive steps:

1) fabrication of a single frame layer A1; A1 passes to subsequent workstations;

2) the manufacture of the first frame layer on B1; B1 left to wait in multi-station 23 extracts;

3) the manufacturing of the first frame layer B2; B2 leave to wait in multi-station 23 extracts (in a different location, not in the fact that zanimaet);

4) the manufacture of the second frame layer on B1; B1 enters the next workstations;

5) fabrication of a single frame layer on A2; A2 goes to subsequent workstations;

6) the manufacture of the second frame layer B2; B2 moves in next workstations;

7) the manufacturing of the first frame layer to B3; B3 left to wait in multi-station 23 extracts;

8) fabrication of a single frame layer on A3; A3 passes to subsequent workstations;

9) the manufacture of the second frame layer to B3; B3 enters subsequent workstations.

After the third workstation, this group has the second order: A1 B1 A2 B2 A2 B3; this second order different from the original order. The number of execution stages - nine; for each stage requires production time 1.5 min, and therefore the total time during which each workstation is busy applying the framework with six tires, 1.5×9=13,5 min Total time is less than 15 min, representing the desired rate of vulcanization of six tires.

In the given order of this group together with the steps that were performed in the third working station according to the above, the time of manufacture of the frame structure type In is no longer critical.

In this example, the order in subsequent work with is anzej no longer change, and the pace of 2.5 min retain all subsequent stations, because all of them require a production time that is equal to or less than 2.5 minutes

In addition, the type And ready for the subsequent station after 1.5 min, while the other 4.5 min pass between them and the next type B1.

In the subsequent processes of type A1 can be slowed down by approximately 1 min, and the production of type B1 needs to be accelerated to 1 min. This deceleration is performed with the help of station 23 excerpts, or by slowing down the rate of deposition of one or more subsequent components.

Acceleration type B1 provide by performing subsequent fabrication within the minimum time, in particular the operations of applying braceros construction and sides every 2 minutes

Vulcanizing molds are located according to the second order, i.e. in the sequence A1 B1 A2 B2 A3 B3 to accept the type And when this type is provided vulcanizing mold.

The group's follow each other on production and break lines to the end of the critical period, when the mold can be replaced, if the next critical period will be made of other types.

In accordance with the method described above during the critical period equal to, for example, eight o'clock, shatavri is up 96 tires type a and 96 tire type Century.

Therefore, two types, a and b, you must determine the group in which one type should be at least one type And then the amount of time for the manufacture of tire type And the specified workstation (e.g., which is subjected to the same treatment at least twice) until the end of the manufacturing tires-semi shorter average total time of these processes at the time corresponding to the time difference between types a and b on the specified the specified point.

Due to this, provide the manufacturing phase, which requires the longest time, with no delay in the execution of subsequent steps.

Changing the order of groups in the third work station 7, which forms the framework described above; and the invention is also applicable to those types of tires, which also differ from each other from the point of view of the application of other components, for example bragarnyk structures. In this case, the sequence will also be changed in the fourth workstation 8 by providing a multi-station endurance.

In General, in accordance with the location of the critical stage in the production sequence: working stages will be accelerated, or will be reduced waiting periods between stages that precede the specified critical value is th stage or follow him in order to compensate for the excess time entered a critical stage.

Optionally, you can provide special station excerpts.

In the installation according to this invention a predefined group, and modification of the order of each group make it possible due to the functional units to move, in particular, using robotic manipulators, and thereby provide the possibility of automation of the production stages. The reason for this is that changing the order of the group means that one type of tyre is on another production route, which is different from the route of another type. Functional device migration and movement provide the opportunity for one critical work period to simultaneously use several routes: one for each type of manufactured tires.

Each group represents the cumulative time organized into routes stages, each of them corresponds to one type of manufactured tires. The route passing through the different production stages, determines the type manufactured tires.

In addition, non of these stations excerpts, these molds and mobility devices can vary according to the number and types of tires that need to be made in those who tell the critical period, and also regarding performance of the equipment.

If necessary, you can also reduce the actual time of vulcanization separate buses; for example, by slowing down the intake of steam in the mold 34, 35, 36, 37, 38, 39 after placement of her tires. Therefore, as an option, you can specify different actual vulcanization time for different types of manufactured tires.

This invention provides the ability to eliminate or at least minimize downtime in each case, when there is a change of the type manufactured tires.

The reason for this is that in these cases the toroidal support and the vulcanizing mold, corresponding to the production of one type, you must replace the toroidal supports and vulcanizing molds, suitable for production of the new type.

But this replacement is required only when changing the dimensions and/or protective characteristics, can be performed with minimal effect to the performance by providing, if necessary, the appropriate equipment.

Therefore, this invention enables easy production of tyres in very small batches, to a few units, without a significant increase in the unit cost of the tires.

It is also possible the production of batches of tyres, which is all on your type differ from each other, and at the same time without having to change equipment producing tires-semi-finished products.

1. Installation for the simultaneous production of different types of tires containing many business units operating in series, characterized in that it contains a CPU is made with the possibility to set the serial execution of a set of work steps in workstations, each of them contains at least one block from among these business units according to one or more predetermined sequences of types of tires and a local processor associated with each workstation and configured to determine the type of tire, corresponding to the drum, we present each of these business units, and with a choice of a certain procedure from among a given group operating procedures for each of these business units, which is intended for that type of tire, which corresponds to the drum, which produce the work.

2. Installation according to claim 1, characterized in that each drum has a code that identifies the type manufactured tires on it.

3. Installation according to claim 1, wherein each workstation includes at least one reader code identifying the type of tyre.

4. Installation according to claim 2, characterized in that the ID is config code marked on the shaft of a drum.

5. Installation according to claim 2, characterized in that the code that defines the bus type is a bar code.

6. Installation according to claim 3, characterized in that the reading device identification code associated with each work unit.

7. Installation according to claim 3, characterized in that the reading device identification code associated with each of the robotic arm of each business unit.

8. A method of manufacturing different types of tires in the auto setting, containing a lot of business units operating in series, characterized in that the Central processor set the serial execution of a set of work steps in the above process units according to one or more predetermined sequences of bus types, identify the type of tyre corresponding to the drum to be given to each unit of the specified business units, select a specific procedure from among a given group operating procedures for each of these business units, which is intended for that type of tire, which corresponds to the drum, which produce the work.

9. The method of claim 8, wherein the step of identifying the type of bus includes the step of reading the code that identifies the type belonging to the drum, which produce the work.



 

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FIELD: tire industry; laying tread on casing of vulcanized pneumatic tire, both reused and new ones.

SUBSTANCE: proposed method includes placing the tread on pneumatic tire casing for molding the tread. Then, casing of pneumatic tire is mounted on rim and is inflated and circular elastic vulcanizing mold is placed on tread. Mold has inner circular surface for molding the tire tread. Then, two elastic flanges made in form of flexible members are placed between each bead and each peripheral edge of vulcanizing mold. Flanges cover outer surface of pneumatic tire formed by casing covered with tire tread and located between bead and edge of vulcanizing mold. System thus molded is placed in heating chamber where excessive pressure is maintained. Provision is made for device used for realization of this method.

EFFECT: simplified procedure, ease of laying tire on casing; enhanced reliability of vulcanizing mold subjected to high elastic action at vulcanization of tires.

22 cl, 6 dwg

FIELD: tire industry; production an element of a pneumatic tire based on rubber mixtures.

SUBSTANCE: the invention is pertaining to the field of the tire industry and may be used at production of an element of a pneumatic tire based on rubber mixtures, two of which one form a tire tread. The method of production of an element based on the rubber mixtures and intended for production of a pneumatic tire provides for extrusion of at least two layers of the rubber mixtures with the help of the main extruder supplied at least with two extrusive feed screws having accordingly the channels of outflow opening into one and the same hole of then extruder limited by the first and the second walls of a plate. Then using extrusion simultaneously through two layers interpose at least one insert made out of the rubber mixture with the help of a microextruder nozzle. The nozzle of the microextruder is pressed to the second wall of the plate of the main extruder. The device for extrusion of the rubber mixtures has the main extruder with an extrusion head with at least two outflow channels for each of two rubber mixtures. The channels are going in one and the same hole of the extruder, through which the two rubber mixtures are extruded. The hole of extrusion is limited by the first and the second walls of the plate. The device contains at least one microextruder intended for extrusion of the third rubber mixture. The head of the microextruder on its end is supplied with a nozzle, which is inserted in the first wall of the plate of the main extruder so, that the nozzle is placed in the hole of the main extruder and pressed to the second wall of the plate of the main extruder so, that to feed the third rubber mixture into a profiled structure, made out of the rubber mixtures coming out of the main extruder. The invention allows to produce elements of the tire out of rubber mixtures.

EFFECT: the invention ensures production of elements of the tire out of rubber mixtures.

7 cl, 3 dwg

FIELD: tires production industry.

SUBSTANCE: the invention is pertaining to the tires production industry and may be used at in production of pneumatic tires. The method of removal of a being disassembled toroidal support includes stages of placement of the toroidal support carrying a vulcanized tire on the dismantling workstation. The toroidal support contains allot of sectors located along a circumference around of a geometrical supporting axis and attached to each other with the help of a flange and a counter flange being in a mutual interconnection on opposite to the axis direction concerning the sectors. The method provides for disconnection of the flange from the counter flange, displacement along direction of the axis of the flange and the counter flange at a space from the sectors and removal of each sector from the tire by a centripetal radial translational motion. At that at least to one of the sectors simultaneously with a centripetal radial translational motion impart an angular rotary relocation, which takes place around a pivot axis, that is essentially perpendicular to the direction being radial to the geometrical bearing axis and placed in a meridian plane shifted in a direction of the axis concerning an equatorial plane of the tire. The method ensures extraction of the sectors of the toroidal support from the vulcanized tire directly after removal of the tire from the installation without its deformation and elimination of the high strains formed in the space between sides of the tire.

EFFECT: the invention ensures extraction of the sectors of the toroidal support from the vulcanized tires directly after their removal from the installation and without deformation and a need to eliminate the high tensions formed in the space between the sides of the tires.

10 cl, 11 dwg

FIELD: tires production industry.

SUBSTANCE: the invention is pertaining to the tires production industry and may be used at in production of pneumatic tires. The method of removal of a being disassembled toroidal support includes stages of placement of the toroidal support carrying a vulcanized tire on the dismantling workstation. The toroidal support contains allot of sectors located along a circumference around of a geometrical supporting axis and attached to each other with the help of a flange and a counter flange being in a mutual interconnection on opposite to the axis direction concerning the sectors. The method provides for disconnection of the flange from the counter flange, displacement along direction of the axis of the flange and the counter flange at a space from the sectors and removal of each sector from the tire by a centripetal radial translational motion. At that at least to one of the sectors simultaneously with a centripetal radial translational motion impart an angular rotary relocation, which takes place around a pivot axis, that is essentially perpendicular to the direction being radial to the geometrical bearing axis and placed in a meridian plane shifted in a direction of the axis concerning an equatorial plane of the tire. The method ensures extraction of the sectors of the toroidal support from the vulcanized tire directly after removal of the tire from the installation without its deformation and elimination of the high strains formed in the space between sides of the tire.

EFFECT: the invention ensures extraction of the sectors of the toroidal support from the vulcanized tires directly after their removal from the installation and without deformation and a need to eliminate the high tensions formed in the space between the sides of the tires.

10 cl, 11 dwg

FIELD: tire industry.

SUBSTANCE: the invention is pertaining to the field of tire industry and may be used for making tires. The sectional toroidal support contains a set of sections precisely centered on a circumference around a geometrical basic axis and forming an exterior surface essentially reproducing an internal conformation of the treated tire. The sectional support contains a flange, on which there is at least one fastening element for engagement with a manipulating device and a counter flange operatively coupled to the flange in an axially opposite position. The sectional support contains the hutching devices for motionless retention of the sections between the flange and the counter flange. Each of the sections has a main body with essentially a U-shaped contour in its cross section, which is limited on one side by the external side forming an external surface and by the internal side facing the geometrical basic axis. The devices of hitching contain for each of the sections at least one fastening plate radially protruding from the internal side practically in a plain perpendicular to the indicated geometrical basic axis and a made with a capability of a removable hitching in an axial position between the flange and the counter flange. The invention is aimed at development of the new production method, that allows to produce separate elements of a tire and then to form them in correspondence with a specific sequence directly on the tire.

EFFECT: the invention presents a development of the new production method, that allows to produce separate elements of a tire with their formation according to a specific sequence directly on the tire.

11 cl, 11 dwg

FIELD: tire industry.

SUBSTANCE: the invention is pertaining to the field of tire industry and may be used for making tires. The sectional toroidal support contains a set of sections precisely centered on a circumference around a geometrical basic axis and forming an exterior surface essentially reproducing an internal conformation of the treated tire. The sectional support contains a flange, on which there is at least one fastening element for engagement with a manipulating device and a counter flange operatively coupled to the flange in an axially opposite position. The sectional support contains the hutching devices for motionless retention of the sections between the flange and the counter flange. Each of the sections has a main body with essentially a U-shaped contour in its cross section, which is limited on one side by the external side forming an external surface and by the internal side facing the geometrical basic axis. The devices of hitching contain for each of the sections at least one fastening plate radially protruding from the internal side practically in a plain perpendicular to the indicated geometrical basic axis and a made with a capability of a removable hitching in an axial position between the flange and the counter flange. The invention is aimed at development of the new production method, that allows to produce separate elements of a tire and then to form them in correspondence with a specific sequence directly on the tire.

EFFECT: the invention presents a development of the new production method, that allows to produce separate elements of a tire with their formation according to a specific sequence directly on the tire.

11 cl, 11 dwg

FIELD: automotive industry; tire industry.

SUBSTANCE: reinforcing members of reinforcing material layer are provided with separate coating made of rubber mixture of preset composition and physical properties. Reinforcing members arranged parallel to each other are coated at one side with first rubber layer or so-called first lining layer featuring constant composition and properties, while on opposite side, members are coated with second lining rubber layer of composition and properties changing as a function of meridional position on said layer in pneumatic tire.

EFFECT: increased strength of tire.

29 cl, 5 dwg

FIELD: production of pneumatic tires and repair of worn tire treads.

SUBSTANCE: the invention is pertinent to production of pneumatic tires and repair of worn tire treads and may be used at restoration of the worn treads of the pneumatic tires and also for molding of tire treads on the new pneumatic tires. The device for molding a tire tread on a carcass of a vulcanized pneumatic tire contains a carcass mounting hoop used for putting on the carcass of a raw tread cap. The device contains an elastic ring-type vulcanizing mold, the outer surface of which is covered with a flexible coupling and which is intended for molding a raw cap of a tread, and two elastic flanges for overlapping of the corresponding tire side strip produced by a molded case of a pneumatic tire covered by the vulcanizing mold. The elastic flanges are made in the form of discs with the peripheral edges of a bigger diameter and a smaller diameter. On the peripheral end of the bigger diameter there is a fixed rigid ring element used to provide a connection with a coupling. The device ensures required tightness at the molding and vulcanization of the tread and has a high wear-resistance.

EFFECT: the invention ensures required tightness at the molding and vulcanization of the tread and has a high wear-resistance.

9 cl, 3 dwg

FIELD: equipment for production of tires and mechanical rubber goods.

SUBSTANCE: the invention is dealt with equipment for production of tires and mechanical rubber goods and may be used for winding bands of the rubber-cord material on individual winding sleeves with an adjustable tension. The device for winding bands of the rubber-cord material contains a working shaft mounted on a support and with a drive for its rotation, driving friction clutches, driven winding sleeves and a control sensor. The driving friction clutches are made in the form of the expandable type-setting keys with a drive from an air bladder mounted inside the working shaft. The invention ensures fast and convenient removal of winding sleeves with rolls out of the rubber-cord material from the working shaft.

EFFECT: the invention ensures fast and convenient removal of winding sleeves with rolls out of the rubber-cord material from the working shaft.

2 dwg

FIELD: polymer materials.

SUBSTANCE: invention, in particular, relates to isobutylene-based halogenated polymers showing elevated pre-treatment strength and elevated impermeability as well as to and a method for preparation thereof. Non-cured thin barrier layer for rubber products comprises 3-95% isobutylene-based polymer and 95-3% semicrystalline polymer having melting temperature from about 25 to about 105°C and melting heat from about 9 to about 50 J/g as measured by differential scanning calorimetry. This barrier layer is used for inside tire envelope and as inner tube. Rubber compound contains semi-crystalline propylene polymer with about 75 wt % propylene units and is prepared on common rubber manufacture equipment.

EFFECT: improved pre-treatment strength, pre-treatment elongation, and pre-treatment relaxation properties at elevated temperature and improved aging resistance and barrier properties.

35 cl, 8 tbl

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