The method of weaving nets and device for its implementation

 

(57) Abstract:

Use: for the manufacture of wire material. The inventive method of manufacturing a grid as follows. The mechanism of the formation containing the screw and located inside the knife, formed spiral round cross-section, which rotates continuously get away with a knife and going, intertwined in ready a fragment of the mesh to the specified length. At the initial stage of manufacture of the fragment of the mesh termoobrabotka once the initial sections of the n coils arranged relative to each other on two grid step length equal to the sum of the lengths of knife holes in the housing of the mechanism of formation of the spiral guiding the spiral, and the free sections of the spiral length 4-10 steps of the spiral, then shaping these spirals stops and then starts forming n or n+1 coils, displaced from the first step of the grid and having an inclined initial segment. Then continues forming first n spirals until then, until they are woven into the whole length of the vacant parcels other n helices and form a loose sections 4-10 of the spiral steps. Then this cycle will be repeated until then, is and will continue the formation and addition of other n spirals until while they can be formed on the width of the grid, and be ready for a fragment of the mesh. Then this fragment is cut and shifted in such a position that the first spiral willing fragment could be weaved with the latest spiral newly manufactured and would be formed of a continuous strip of mesh. Device for weaving nets contains mounted on the frame downstream rack with coils of wire, mechanism account of coils, the mechanism of formation of spirals, including the knife and the screw, the cutting device spirals, a table, an offset mechanism of the finished portion of the grid guide. The mechanism of formation of the helix contains a removable case with displaced relative to each other on the grid step two rows by n blocks screw knife placed in each row with a spacing equal to two grid steps. Moreover, the blocks of one row are placed at an angle to the blocks of the other series and the angle is selected the minimum possible of the conditions specified in the placement block. Each block on the output side of the spiral is connected with the outlet in the housing, which have a sloping plot, gradually turning in the horizontal, and horizontal sections of the holes form a surface that is described around the manufactured fragment of the mesh by the wheels of each row are in engagement with its worm, which is driven from his worm gear and drive. 2 S. and 1 C.p. f-crystals, 13 ill.

The invention relates to the production of woven metal mesh, in particular for the manufacture of woven wire mesh, intended for the manufacture of wire material.

There is a method of weaving nets of wire helices, consisting in the fact that the mechanism of the formation containing the screw and located inside the knife, formed spiral flattened cross-section, which rotates continuously get away with a knife and intertwined in ready a fragment of the mesh to the specified length, then the formation of the helix is terminated and it is cut to the specified length, then ready a fragment of the mesh is moved to the grid step and the cycle described operations repeated.

A device for weaving nets that implements this method, containing mounted on the frame downstream mechanism of reference coils, cutting mechanism of the spiral, while the screw is made in the form of a sleeve with a through screw groove of constant pitch and increasing the diameter of the hole along its axis in the direction of the helix, and the knife is designed with a variable profile, the degree of descent of the spiral [1]

The disadvantages of this method and device, it implements are: the impossibility of making fine mesh of spirals round profile, intended for the manufacture of wire material, and low productivity, due to the fact that the mesh is made consistent intertwining spirals, one after the other.

The purpose of the invention is to improve the performance of the process of weaving nets, and nets intended for the manufacture of wire material.

This is achieved by the method of weaving mesh, consisting in the fact that the mechanism of the formation containing the screw and located inside the knife, formed spiral round cross-section, which rotates continuously get away with a knife and, strictly bound, woven into the finished mesh fragment on a given length, at the initial stage of manufacture of the fragment of the mesh pornoamatuers once the initial sections of the n coils arranged relative to each other on the two step grid (grid spacing distance between the axes of two adjacent helices, which are in positions convenient for the mutual interweaving). This distance is less than the distance between the axes of adjacent spirals in tense Satversme in the case of the mechanism of formation of the spiral, guide spiral, and the free sections of the spiral length 4-10 steps of the spiral.

Then shaping these spirals stops and then starts forming n spirals (or n+1 coils), offset from the first step of the grid and having an inclined initial segment (length and angle of which provide accommodation of the screw with a knife and plot a smooth transition to the horizontal position of the spiral), which at the time of forming rotate and continuously sliding with knives, in a transitional area into n first spirals, forming these spirals are derecognised when they are woven formed till the end sections of the first coils and form a loose sections 4-10 of the spiral steps. Will continue forming first n spirals until then, until they are woven into the whole length of the vacant parcels other n helices and form a loose sections 4-10 steps spirals. This cycle will be repeated until, when the last stage of manufacture of the fragment of the mesh n first spirals can be formed on the entire width of the grid, then will continue the formation and addition of other n spirals up until they will form the width of the grid, and be ready for a fragment of the mesh, then this raelene spiral newly manufactured and formed a continuous strip of the grid.

The objective is also achieved by the fact that in the proposed device for weaving nets, knife with a variable profile of the transverse and longitudinal cross-sections made from the entrance of the wire cone with an oval cross-section, gradually, for example, two-thirds of its length ending in a cylindrical round tail calibrating part of the knife, and the perimeter of the oval cross-section less than or equal to the perimeter of the circular cross-section, and the screw is made in the form of a sleeve with a through screw groove of constant pitch and hole with the response of conical and cylindrical parts, profiled so that the radial clearance in the cylindrical part of the knife less than half the diameter of the wire, but not more than 0.1 mm, and the conical part of the minimum radial clearance between the auger and the cutter is also less than this value.

In addition, the device includes a mechanism cuts a spiral, a guide mounted on the table for weaving nets strictly along the axis of the spiral in such a way that it captures the spiral contact intertwine in a position that provides them plexus, the mechanism of displacement of the grid, the mechanism of formation of the helix contains a removable case with displaced relative to each other on the step the mesh is equal to two grid steps, moreover, the blocks of one row are placed at an angle to the blocks of the other series and the angle is selected the minimum possible of the conditions specified in the placement block. Each block on the output side of the spiral is connected with the outlet in the housing having an inclined section, gradually turning in horizontal section and horizontal sections of the holes form a surface that is described around the manufactured fragment of the mesh with a small gap. At the end of each knife on the input side of the wire made of the worm wheel and worm wheels of each row are in engagement with its worm which is driven from his worm gear and drive. On the table for the mesh netting in the direction perpendicular to the axes of the spirals plate is installed, limiting the table size the length of the spiral finished fragment of the mesh.

In addition, with the aim of simplifying the technology of manufacture of the device and its adjustment one row of blocks screw knife can be placed horizontally, the body of the mechanism of formation can be made of separate identical blocks, exactly connected with each other with their Assembly and disassembly, for example, using pins, and the guide is made in the necks of the length of the spiral, has the cross-sectional profile with a triangular, rounded at the apex (in contact with the spiral grid). The second side having a cross-sectional profile, made in the dovetail placed in the groove of the guide support with the response profile cross-section, fixedly mounted on the table, at the tail end of this hand made hole with micrometer thread, which is screwed micrometer screw having at the other end of the smooth cylindrical part on which it is centered in the rack rigidly connected with the guide rail and the flange, the locking screw axis axial displacement, located in a groove between a rack and a lid mounted on the rack.

On the threaded portion of the screw is screwed nut, fixing the adjusted position of the guide of a square, in which, while the emphasis in the first helix of the finished portion of the grid, it will freeze in the position in which it will intertwine with the latest spiral newly manufactured pieces, and between the guide and the table is set, the spacer, the thickness of which is chosen so as to provide a slight interference fit between the rounded top and the turns of the spiral, not giving permanent deformation via also limits the table size the length of the spiral finished fragment of the mesh.

The proposed method in the proposed device is a fragment of the mesh and the dimensions of the fragment can be large and are determined by the diameter of the helix and the number 2n simultaneously include spirals, which is only acceptable dimensions for weaving nets and can be quite large.

For example, the length of the fragment coarse grid can be 1.5-2 m Therefore, the performance of the proposed method and device may in some tens times the performance of the prototype (method and device).

The proposed method and device provide a weave wire mesh of spirals with 8-10 of wire with d0,12 mm, used for the manufacture of wire material, as when weaving strict direction intertwine spirals throughout the process of making each piece of the grid. The guides in each cycle of weaving are loose end of the n coils, the rigidity of which bending is large enough, since the length of these ends is not large and does not exceed 4-10 steps of the spiral.

The manufacture of the body of the mechanism of formation of the spiral of the individual blocks can be, first, to simplify technologo number of blocks.

In this implementation guide-gon with the possibility of smooth adjustment of its position provides quick adjustment of any size device.

In Fig. 1 shows a device that implements the inventive method of Fig. 2 is a view along arrow a in Fig. 1; Fig. 3 cross-section B-B in Fig. 2; Fig. 4 section b-b of Fig. 3; Fig. 5 section G-G in Fig. 3; Fig. 6 section d-D in Fig. 3; Fig. 7 section f-F in Fig. 3; Fig. 8 section C-C in Fig. 1; Fig. 9 section And in Fig. 1; Fig. 10 fragment of the table for weaving nets with a pre-installed guide-gon; Fig. 11 section K-K in Fig. 10 of Fig. 12 simulator to validate the proposed method, a General view of Fig. 13 the same cross section.

Device for weaving nets that implements the proposed method (Fig. 1) contains established in the course of the technological process on one frame 1 rack 2 with coils 3 wire 4, the mechanism 5 forming spirals, the mechanism 6 account of coils, the mechanism 7 segments of spirals, table 8 for weaving mesh with a fixed guide-gon 9 ready-to-fragment of the mesh, the limiting strap 10 and tray 11, the mechanism 12 offset finish portion of the grid and the load 13, the hooks 14 is attached to the edge ready DeShannon condition.

Mechanism 5 forming spirals (see Fig. 1, 2) consists of a body 16, which may be integral or assembled from blocks 17 and blocks screw knife screw 18 inserted in them knives 19 installed in the holes of the blocks 17.

The exact position of the blocks 17 relative to each other and side racks 20 to which they are attached tie bolts 21 and nuts 22, is fixed by pins 23.

The housing 16 is attached to the frame 1 by bolts 24 and accurate installation on the frame is provided with pins 25.

Blocks screw knife in the housing 16 are arranged in two rows, n blocks in each row (in one of the rows can also be n+1 of these blocks), in increments of two grid steps. Moreover, the blocks of one row is shifted to the step of the grid relative to the blocks of the other series and positioned them at an angle, whose value is selected the minimum possible of the conditions specified in the placement block. One of the rows of blocks screw knife can be positioned horizontally (see Fig. 3). Each block screw knife on the output side of the spiral is connected with the outlet 26 in the housing 16.

The inclined located several blocks of output apertures 26 have inclined sections 27, which fades into horizontal sections 28, which instead of in around the produced fragment of the grid.

The auger 18 is made in the form of a sleeve with a through screw groove of constant pitch equal to the pitch of the helix. The hole in the auger is made round and the length of the profiled so that in any cross section of the minimum value of the clearance between the screw 18 and the knife 19 is less than half the diameter of the wire. In the cylindrical part of the hole, this gap does not exceed 0.1 mm of This part of the inner surface of the auger 18 is covered with a solid lubricant and serves as a bearing for the knife 19. From an axial displacement of the blades 19 is fixed a worm 34.

For fine mesh made of wire with d0,12-0,4 mm and c 8-10, auger technologically convenient to make a strand of flat strips with beveled edges (see Fig. 3, 4). In this case, you can provide end-to-end helical grooves with a width of the slits, for example, respectively 0,15-0,45 mm Knife 19 in this case, it is convenient to manufacture the tube.

In part at the entrance of the wire it has a dent (length 5-6 steps of the spiral), gradually turning into a cylindrical portion at the other end of the knife.

With the collapse of the cross-section of the tube at the initial site (on the input side of the wire) is made in such a way that arising in the circuit of the spiral residual races is">

At the end of each knife 19 is pressed worm wheel 29, is additionally fixed by cerite-top.

Each pair of blocks screw knife fixed in the housing 16 by screws 30 and nuts 31 (see Fig. 2).

Mechanism 6 account of coils (see Fig. 1, 2) consists of two actuators 32 (e. engines) connected each with its worm gear 33 mounted on the frame on both sides of the mechanism 5 forming a spiral, and two worms 34 connected by a coupling 35 with the output shaft 36 of the gear 33.

The worm 34 mounted in bearings 37, located in the lateral uprights 20 of the housing 16, and are in engagement with each of the worm wheels 29 in its range blocks screw knife.

On the lids 38 bearing 37 on the bracket 39 secured two sensor 40 account turns (sensors account turnover worms 34). In the place of installation of the sensor on the worm along its axis glued a piece of thin wire that triggers the sensor signal 40.

The mechanism of the 7 segments of the spiral (see Fig. 1,8) is attached to the frame 1 by bolts 41 and installed with the help of pins 42 so that the cut spirals occurred directly at the exit of the spirals from the housing 16. It is made in the form of guillotine shears and consists of the bottom is and the spring 47, decompresses the knives of the cylinder 43, which is located under the frame and secured to it.

The piston rod 49 of the cylinder 48 is fixed in the groove 50 of the upper knife 44 using a ball joint 51, which from unscrewing secondline pin 52. The length of the groove 50 is selected in such a way that provides the required angle of rotation of the upper knife 44.

Using the spacer 53, mounted under the base of the lower knife 43, its cutting edge exposed so that between it and the spirals remained a gap of 0.2-0.3 mm, providing free passage spirals above the knife and cut the spirals without permanent deformation of the bend.

Table 8 for weaving mesh consists of a plate 54 (see Fig. 9, 11) welded to two channels 55, and is fixed to the frame 1 by bolts 56 and washer 57. The required installation height of the table is selected using spacer shims 58, mounted under the bottom shelf of the channel 55.

The strap 10 secured to the table 8 by means of bolts 59 and pin 60 (see Fig. 9) in position limiting the working field of the table 8 length of the spiral finished fragment of the mesh (see Fig. 1).

Guide 9 ready-to-fragment of the mesh (see Fig. 1.9) is made in the form of a triangle with a right angle at the vertex, side, e.g. the th, rounded at the apex (in contact with the spiral grid), mounted on the table 8 by means of bolts 61 and pins 62 so that the gap between the top and the table mounted with the spacer 63, provides a slight interference fit, not giving a residual deformation turns when pulling the grid through it, and given the emphasis in the guide is the first of the spiral 64 (see Fig. 1,9) fragment of the mesh 15 this spiral is fixed in the position in which it is interwoven with the last coil 65 newly manufactured fragment of the mesh.

While the second side rail 9 serves as a limiter bias of the finished product grid 15 in the direction of the axes of the spirals.

The sensor 66 account spirals fixed by means of screws 67 (see Fig. 9) in the guide hole 9 so that its diametrical profile cross-section lies in the same profile plane diametrically of the profile cross-section of the spiral when the emphasis of the spiral grid in the guide 9.

While the gap between the coil and the sensor minimum and maximum signal. As the sensor 66 can be applied to any sensor that measures the gap in a contactless manner, such as eddy-current sensor.

When the housing 16 may be collected from different numbers of blocks 17, more convenient to provide avego adjusting the position of the guide-gon 68 (see Fig. 10, 11).

From the previous version, it differs in that the side of a square 68 that is perpendicular to the axes of the spirals, made in the form of "dovetail", placed in the guide groove 69 with the response profile cross-section, fixedly mounted on the table 8 by bolts 70 and pin 71. At the tail end of this part of the elbow 68 is made a hole 72 with micrometer thread, which is screwed micrometer screw 73 having at the other end of the smooth cylindrical part 74, which is centered in the rack 75, made in one piece with the guide 69 and the flange 76, the locking screw against axial displacement, located in the groove between the counter 75 and the cover 77. On the threaded end of the screw 73 is screwed a nut 78, fixing the adjusted position of the guide-gon 68.

For the guide 9 in the course of the technological process, the mechanism 12 offset finished fragment of the mesh (see Fig. 1). It consists of actuator 79, worm gear 80 mounted on the frame 1, and the roller 81 rubber coating 82 (see Fig. 9) mounted on the output shaft 83 (see Fig. 1) gear 80. The axis of the roller 81 parallel to the axis of the spirals of the grid.

In the rubber coating 82 is resiliently clamped needles 84 increments of vdol what Ernesto rubber coating 82 and table 8 for a few tenths of a millimeter larger than the diameter of the spiral grid, and the length of the free area of the needles is less than the clearance is greater than the diameter of the wire.

On the output shaft 83 has a brake, which may be in the form of a solenoid, a Central rod which when provision is included in the hollow space between the teeth of a worm wheel mounted on the output shaft 83.

In the manufacture of the coarse grid with spljusnutymi the cross-sectional profile of the spiral mechanism displacement finished fragment of the mesh may be made in the form of one or more pairs of rolls, resulting from one drive, and not only bias the prepared fragment of the mesh in the desired position, but plushevaya coils of the spirals to the preset value.

The opportunity for practical application of the proposed method for the manufacture of wire mesh, suitable for the manufacture of wire material, can be easily checked. It is enough to prove the possibility of interweaving two horizontally spaced spiral 85 (see Fig. 12) two oblique appropriate to them in their middle part of the coils 86, which, weaving, undergo a bend to a horizontal position and are woven in a loose length of 5-6 steps of the spiral sections of spiral the curved tube 88 h with cut sides on the length of their contact, collected in the housing 89 so that their inner surface to the length of the horizontal portion forms a surface that is described with a small clearance relative to the outer surface of the fragment of the mesh of the four spirals.

Were made four spiral with D=3.7 mm steel wire with d= 0.35 mm with a step of stretching t=D.

Two of these coils were inserted in a horizontal tube 87 (spiral 85) so that on the output side coils were loose sections of length five steps. Then in curved tubes 88 are inserted two spiral 86 that simultaneous rotation were woven in a spiral 85 so that they formed a loose sections of length five steps, spirals 86. Next spiral 85 simultaneous rotation was woven in a spiral 86 with the formation of free sites. Thus was obtained a fragment of the mesh of the four helices of length 150 mm

The proposed device works in the following way (implementation of the proposed method using the claimed device).

In the manufacture of fine mesh wire 0,12 0,4 mm before working the wire 4 is wound on the knives 19 blocks screw knife, which is then mounted in the case 16 and fixed by screws 30 and nuts 3i 19 of the bottom row of blocks screw knife, which thermoabrasion spiral 85.

The morphology of these spirals will end (the left actuator 32 will be turned off), when they will be released from the housing 16 and form a loose sections of a length of 5-6 steps.

Next is activated right actuator 32 and are driven knives 19 top row inclined located blocks screw knife that thermoabrasion spiral 86.

These spiral rotates continuously slides with knives and transition areas of the outlet openings 26 (transition from the inclined section 27 to 28 horizontal ) concatenated with the coils 85 and the rest of the length of these spirals are woven into them.

If before it was ready a fragment of the mesh, then the last spiral 86 intertwined in the first coil 64 ready-to-fragment of the mesh 15.

Forming spirals 86 ends (right off the actuator 32), when they will interweave the entire length of the coils 85 and form a loose sections of a length of 5-6 steps of the spiral.

The following cycle will be repeated until the last stage of manufacture of the fragment of the mesh, when forming first coils 85 and then spirals 86 will be terminated at the signal of their sensor 40. This will happen when the spiral has reached the specified length. the camping air pressure, the rod 49 lowers the upper knife 44 and generates the force required for cutting spirals.

The pressure from the cylinder 48 is discharged and the spring 47 returns the knife 44 to its original position.

Next, turn on mechanism 12 offset finished fragment of the mesh. The roller 81 rotates, clings needles 84 for the coils of the spiral grid and holds it fits through the gap between the guide 9 and table 8 as long as the sensor 66 will not give the signal that the first coil 64 ready-to-fragment of the mesh 15 stood in the position in which it is interwoven with the last coil 65 newly manufactured fragment of the mesh.

The actuator 79 mechanism 12 is turned off, the solenoid brake output shaft 83 of the gear 80 is de-energized and the output shaft is braked.

The braking of the output shaft 83 allows you to precisely displace ready a fragment of the mesh to the specified position.

The presence of guide plates 10 eliminates the possibility of unscrewing spirals when pulling newly manufactured fragment of the mesh through the guide 9.

While the loosening of the coils of the previously manufactured fragment of the mesh 15, located in the area between the guide 9 and the platen 81 mechanism 12 offset finish portion of the grid eliminates the vinciano spirals at offset grid prevents tension in the load 13.

Of course, the strap 10 and the guide 9 will prevent the loosening of the coils just in case, if the direction of displacement of the grid is chosen thus that the resulting offset the rotation of the spirals of their shifts in the axial direction toward the bar and the rail.

The advantages of the proposed method and device in comparison with the prototype is their (several dozen times) greater productivity in weaving coarse mesh and netting wire mesh, suitable for the manufacture of the wire material.

1. The method of weaving nets, including the formation of spiral circular cross-section through the mechanism of forming the screw and located inside the knife, which rotates continuously get away with a knife and intertwined in ready a fragment of the mesh to the specified length, characterized in that at the initial stage of manufacture of the fragment of the mesh termoobrabotka at the same time primary sections n helices of length equal to the sum of the lengths of knife holes in the housing of the mechanism of formation, guide spiral, and scatter plot of length 4 or more steps of the spiral located relative to each other on two grid step, and the step size of the grid p this position is fixed by the guide, then forming the initial sections of these spirals stops and then starts forming n spirals or n + 1 coils, displaced from the first step of the grid and having an inclined initial area, length and angle of inclination which provides accommodation of a screw with a knife and plot a smooth transition to the horizontal position of the helix, and the position of these spirals dropping knives, form an inclined section and a smooth transition to the horizontal position is also fixed through the guide, such as guide holes in the housing of the mechanism of formation, and the formation of the spiral rotate and continuously sliding with knives, in a transitional area into n first spirals, which include direct and formation of these spirals are derecognised when they are woven to the end of the generated plots n first helices and form a loose sections of 4 or more steps of the spiral, then continue forming first n spirals until then, until they are woven into the whole length of the free sites of the second n helices and form a loose sections of 4 or more steps of the spiral, then this cycle will be repeated all the time up until the last step made the weave of the third n spirals until until they can be formed on the width of the grid and will be ready mesh fragment, then the fragment is cut and shifted in such a position that the first spiral willing fragment could be weaved with the latest spiral newly manufactured and would be formed of a continuous strip of the grid.

2. Device for weaving nets, containing mounted on the frame downstream mechanism of reference coils, the mechanism of formation of helices with a knife, having a variable profile transverse and longitudinal section, with the auger in the form of a sleeve with a through screw groove of constant pitch and the hole, the cutting device spirals, characterized in that the knife on the input side wire is made conical with an oval cross-section, gradually, for example two-thirds of its length, ending in a cylindrical round at the end, the calibrating part of the knife, and the perimeter of the oval cross-section less than or equal to the perimeter of the circular cross-section, and the hole is made with the response of conical and cylindrical parts, with radial clearance in the cylindrical part of the knife is less than half the wire diameter, but not more than 0.1 mm, and the conical part of the minimum radial clearance between the auger and knife the compensation of the spiral, contact intertwine spiral during their plexus, the shifting mechanism is ready fragment of the mesh, made in the form of a drive with the worm gear, and connected to it by a roller with an elastic surface, which increments along the axis of the roller is equal to the pitch of the helix, and the district step that corresponds to the distance between the axes of adjacent spirals in the finished grid elastically clamped needles, and mechanism of formation of the helix contains a removable case with displaced relative to each other on the grid step two rows of n blocks screw knife or in the same row n blocks, and the other n + 1 blocks, placed in each row with a pitch equal to two steps of the grid and the blocks of one row are placed at an angle to the blocks of the other series, each block on the output side of the spiral is connected with the outlet in the housing, which has a sloping plot, gradually turning in horizontal section, and horizontal sections of the holes form a surface that is described around the manufactured fragment of the mesh with a small gap, and the mechanism of reference of turns made in the form of two drives connected each with its worm gear and worm, each of which is in mesh with the worm wheels one row of blades, executed on but the setting strap, the bounding box of the table size the length of the spiral finished fragment of the mesh.

3. The device according to p. 2, characterized in that one row of blocks auger knife is horizontal, the body of the mechanism of formation is made of separate identical blocks, exactly connected with each other with their Assembly and disassembly, for example, using pins, and the guide is made in the form of a triangle with a right angle at the vertex, the side which is directed along the axis of the helix, at length, no less the length of the spiral, has a cross-sectional profile with a triangular to rounded apex in contact with the spiral grid, and the second side having a cross-sectional profile, made in the dovetail placed in the guiding-support with the response profile cross-section, fixedly mounted on the table, and at the tail end of this hand made hole with micrometer thread, which is screwed micrometer screw having at the other end of the smooth cylindrical part on which it is centered in the rack rigidly connected with the guide-arm, and the flange, the locking screw against axial displacement, located in the groove between the stand and cover, sacramentalia, where the emphasis in the first helix of the finished portion of the grid, it will freeze in the position in which it is interwoven with the latest spiral newly manufactured pieces, and between the guide and the table is set, the spacer, the thickness of which is chosen so as to provide a slight interference fit between the rounded top and the turns of the spiral, not giving a residual deformation turns when pulling wire guide-gon, and the dimensions of the guide such that the guide bearing also limits the table size the length of the spiral finished fragment of the mesh.

 

Same patents:

The invention relates to the production of woven metal mesh, in particular for the production of woven meshes, for the manufacture of wire materials

The invention relates to the production of woven metal mesh and allows you to weave fine mesh for the manufacture of a wire material of a wire with diameter d0.12 mm and the ratio of the diameter D of the spiral to the diameter of the wire 8-10

FIELD: agriculture.

SUBSTANCE: invention is related to protective nets, intended for reinforcement of slope against fall, and to methods of their manufacturing. Net is made with diagonal plaiting and is woven of twisted wire strands bent in the shape of spirals, armature bundles or cords, which comprises two or more wires or twisted wire strands of steel. Method for manufacturing of protective net consists in the fact that twisted wire strand, cord or armature bundle is fed with a certain angle of lift at least to one bending mandrel of device and is bent at a certain length around bending mandrel approximately by 180, then repeatedly moved along their longitudinal axis to bending mandrel at a certain length, bent accordingly around bending mandrel by 180 until this twisted wire strand, cord or armature bundle does not achieve shape of spiral, besides wire strand bent in the form of spiral, cord or armature bundle are woven together with the second twisted wire strand, cord or armature bundle bent in the form of spiral, and this is repeated until net is made with diagonal plaiting of desired value.

EFFECT: optimal fixation of slope is achieved, as well as damage danger is reduced.

9 cl, 4 dwg

FIELD: process engineering.

SUBSTANCE: invention relates to machine building and may be used for producing braided gauzes. Proposed method comprises forming first unit helices by set of blades to preset length at preset pitch and expending them by expansion mechanism in helix axes to preset pitch defined by claimed relationship. forming second unit helices by second set of blades arranged opposite the first set at opposite side of produced gauze with shift relative to first unit helices through gauze pitch to ensure preset pitch in continuous rotation of helices. Said helices slide from blades to get braided into expanded helices of the first set to make gauze fragment. Length of said helices is selected appropriately. First unit helices are released from expansion mechanism and shifted to open the zone. Second unit helices are cut in said zone to cut finished gauze fragment to be displaced for connection with the next fragment. Gauze next fragment and connection helix are made, for the latter to be braided in the last helix of the next fragment and to the first helix of previous fragment over the entire length of all helices. Cycle is reiterated unless required length of gauze is produced.

EFFECT: production of fine gauzes.

4 cl, 2 dwg

Up!