Line for processing semi-finished leather

 

(57) Abstract:

Usage: leather industry. The inventive line for processing leather semi-finished product contains consistently located downstream planing machine, the section for trimming the edges of the semi-finished product, a device for weighing cement, the apparatus for carrying out sequential liquid processing semi-finished, push and divorce machines and apparatus for the preliminary liquid processing of the semifinished product and the means to aging of the semi-finished product. It has a unit for holding a liquid processing semi-finished product, the device for producing emulsions and two additional dewatering machine. The course of the process before planing machine consistently set the apparatus for preliminary liquid processing material additional release tab machine, the device for producing emulsions, Assembly for holding a liquid processing semi-finished product, the plot for the processing of the semifinished product and a second additional release tab machine. 1 C.p. f-crystals, 2 ill., table 1.

The invention relates to leather manufacture, and can be used for PROIZVODSTVENNO installed along the technological scheme of the drum for liquid processing, device for aging, the plot for the segmentation of skin, push, planing machines, land for cropping the edges, the device for weighing material drum for liquid processing device for aging, push and divorce machine [1]

However, the known line has some technological disadvantages: large duration of technological processes, the impurity salts of chromium wastewater, inefficient use of chemical materials.

Closest to the technical nature of the claimed solution is the production line of skins for different purposes, containing consistently located downstream of the device for preliminary liquid working hides, skins, planing machine, the device for pulling the skins, the plot to trim the edges of the skins, of a device for weighing cement, the apparatus for carrying out pogledovalnik liquid processes, push and divorce machine [2]

However, the known line has some technological disadvantages: large duration of technological processes, the impurity salts of chromium wastewater, inefficient use of chemical materials.

The problem to be solved proposed sobriety wastewater increasing the efficiency of chemical materials through the creation of the unit for routine processing of leather prefabricated tunnel type with the simultaneous application and uniform distribution of solutions in the thickness of the leather for tanning processes, fatliquoring.

Essential features of the invention is the presence in the line for processing of leather prefabricated unit for holding a liquid processing semi-finished product, equipment for production of emulsion. While the course of the process before Assembly for holding a liquid processing has been consistently found to apparatus for carrying out the preliminary liquid processing material additional release tab machine, the device for producing emulsions, Assembly for holding a liquid processing semi-finished product, the site for prolei semifinished product and a second additional release tab machine.

The essential features of the unit for holding a liquid processing semi-finished product is the presence of four consecutive devices for applying business solutions to the semi-finished product, each device performs its function to implement the significant characteristics of the first device for coating and impregnation of the working solution are available and mounted on the frame located one after the other of the two conveyors, the lower and upper made of porous material, the single branch of each of which is installed with the possibility of contact with the mechanism of impregnation material conveyor, consisting of a bath with a working part and located it namesnik shaft and installed above the last anchor shaft, and between the branches of the upper conveyor is a system clamping shafts with the possibility of reciprocating motion perpendicular to the direction of movement of the conveyor on the frame of the lower conveyor attached table for feeding and rasprave semi-finished product, and under his working branch has support table.

The essential features of the second device for the introduction of working in the semi-finished product is that it is mounted on the frame of the conveyor belt of porous material for transfer of working structures and movement of the semifinished product, which is located under the working branch conveyor supporting means, and means for clamping the semi-finished product to the conveyor, made in the form of a system of clamping shaft with annular grooves placed in the frame.

The essential features of the third device to implement working solutions in the semi-finished product is that it contains smotrova with the mechanism of impregnation, the reference Desk is located under the working branch conveyor, the brush shaft mounted perpendicular to the movement of the conveyor and with the possibility of reciprocating motion in the same direction.

The essential features of the fourth device to implement working solutions in the semi-finished product is that it contains mounted on the frame of the conveyor belt of porous material, the single branch of which is installed with the possibility of contact with the mechanism of impregnation, located under the working branch of the conveyor support table and several consecutive bars with notches along their entire length on facing the conveyor side, installed in the frame with the possibility of reciprocating movement relative to the working branch line.

Using separately each device for impregnation of leather prefabricated does not allow to achieve the required degree of impregnation and the distribution of work in the thickness of the leather in one pass, because a large part of the working composition remains on the leather fabric and after each aging treatment is necessary for impregnation.

In the device for the impregnation of leather prefabricated with prig the management and implementation of working in the thickness of the leather. In the device for impregnation of leather and semi-finished product with the brush shafts remaining on the surface of the semi-finished work, the composition is rubbed into the thickness of the leather. In the device for impregnation of leather and semi-finished product in which the means for clamping the semi-finished product to the working branch is executed in the form of several consecutive bars with notches along their entire length, promotes deeper penetration and distribution of the working part in the longitudinal direction and thickness.

Thus, the complex combination of devices for the application and implementation of working trains on the semi-finished product allows to achieve a desired degree of impregnation and their distribution in the thickness of the leather in one pass.

In Fig. 1 shows a diagram of the production line leather, and Fig.2 kinematic diagram of the unit for the processing of semi-finished leather.

Line for processing leather semi-finished product contains successively installed downstream outboard drum 1 (Fig.1), push the checkpoint machine 2, the device for producing emulsions 3, unit for holding a liquid processing semi-finished product containing the device 4 for applying working on lieveling application of the composition to the surface of the semifinished product and introducing it into the thickness of the material with different mechanical impact, section 8 for aging of the material after processing on the unit, push the car 9 for pressing the semi-finished product, part 11 to trim the edges, the device 12 for weighing batches of skin, hanging drum 13 for liquid poledouble processing, to perform neutralization, dyeing, retanning organic tanning agent and fatliquoring (if necessary), section 14 for prolei semi-finished, push the car 15 for pressing the semi-finished product, a divorce machine 16 to complete the process of setting.

Device 4 (Fig.2) contains mounted on the frame of the lower conveyor 17 of the porous material, the support means 18 in the form of a table below the working branch of the conveyor 17. Above the lower conveyor 17 is the upper conveyor 19 of the porous material inside the system pressure shaft 20 with the possibility to adjust their efforts pressing to the conveyor 19 by means of springs 21. The pinch rollers 20 are fluctuating up and down in the vertical direction in order to eliminate the effect of the extraction. The lower conveyor 17 and the upper conveyor 19 are in contact each with its own mechanism of impregnation, the resulting impregnated conveyors 17, 19 working compositions. The mechanism of impregnation bath contains 22 to lower the 5, which, together with the shafts 26, 27 simultaneously perform the role of an anchor shaft to regulate in porous conveyor 17, 19 the number of working staff. Bath 23 is closed by a cover 28, between the shaft 25 and the cover 28 has a gap 29 to seal the working part of the shaft 25. To the frame of the lower conveyor belt 17 in the direction of its working branch fortified table 30 for rasprave and supply of prefabricated 31 through shaft 32.

The device 5 carries out a mechanical effect and the stretching in the transverse direction of the semifinished product throughout its length. The device 5 for the introduction of the working composition contains mounted on the frame of the conveyor 33 of the porous material, the supporting device 34 in the form of a table below the working branch of the conveyor 33. Above the conveyor 33 is the system pressure shaft 35 with the annular grooves made with the possibility of mutual approach of annular protrusions of one of the shaft in the groove adjacent the shaft with a clearance not exceeding the thickness of the leather both in radial and in axial directions. The pinch rollers 35 mounted in the frame 36 with the ability to regulate their efforts pressing to the conveyor 33. The conveyor 33 is in contact with the mechanism of impregnation, consisting of bath 37 with a working composition,hydrated shaft 39, which removes from the porous conveyor 33 surplus personnel.

The device 6 for the introduction of the working composition contains mounted on the frame of the conveyor 40, made of a porous material. Under the working branch conveyor 40 is a supporting tool 41, made in the form of a table, and above it there is a system oscillating brush shaft 42 mounted perpendicular to the movement of the conveyor 40 in the frame 43 with a reciprocating motion in the same direction due to installed on the frame of the crank mechanism 44. The conveyor 40 is in contact with the mechanism of impregnation, consisting of bath 45 with a working composition, which is namazee shaft 46, made of a porous material. Over namesnik shaft 46 is supporting shaft 47, which removes from the porous conveyor 40 excess personnel.

The device 7 for introducing the working composition provides a mechanical effect by creating the effect of "sponge" in the transverse direction of the material with the help of vibraplane. The device 7 has mounted on the frame of the conveyor 48 of the porous material, the support means 49 in the form of a table below the working branch of the conveyor 48. Over conveyer sledovatelno located vibraplane 51 with notches along their entire length on facing the conveyor side. The strap is installed in the frame 52.

By the spring 53, the Cam 54 and roller 55 is the reciprocating means for the clamp 50 of the semi-finished product to the working branch conveyor 48 is perpendicular to the vertical direction, resulting semi-finished product is stretched in the longitudinal direction. The conveyor 48 is in contact with the mechanism of impregnation, consisting of 56 baths with a working composition, which is namazee shaft 57, is made of porous material. Over namesnik shaft 57 is supporting shaft 58, which removes from the porous conveyor 48 surplus staff. Before the system vibraplane set the pressure roller 59 to compress the semi-finished product before mechanical impact.

Each device 4, 5, 6, 7 unit end portion of the feed conveyor comes to half the diameter of the feeder conveyor to the next device 5, 6, 7 for the introduction of working and has removable device 60.

Processing of semi-finished leather line is as follows.

The hide after otlochno-ash process is loaded into the drum 1 (Fig.1), which perform the rinsing process, obessolivanija, bating, flushing, pickle unit for liquid processes by sequential processing device 4 for applying working on the front and boterman side of the semi-finished product, on the devices 5, 6, 7 for additional application workflow composition on the surface of the semifinished product and introducing it into the thickness of the material with different mechanical impact. Before handling the unit for liquid processes using the installation for the preparation of the emulsion 3 prepare the emulsion to perform tanning-fatliquoring. The installation for the preparation of the emulsion described in ed. St. N 1695675. Unit for liquid handling works as follows.

Pressed pickled prefabricated 31 (Fig.2) is placed on the conveyor 17, cracking down on the table 30 and the shaft 32, which rotates in contact with the moving semifinished product 31. Moving with the conveyor 17, the semifinished product 31 enters the treatment area, where it exerts a mechanical effect of system pressure shaft 20 due to the reciprocating motion perpendicular to the plane of the conveyor.

The contact force of the semifinished product 31 to the conveyor 19 is adjustable by means of a spring 21. The passage of the semifinished product 31 between the porous conveyor 17, 19 ensures the application and penetration of the working composition on its surface on both sides.

Impregnation work part conveyors 17,2, which is filled with a working composition, for example, emulsion tanning-fatliquoring, prepared with the help of the device 3 for the preparation (Fig.1).

Namazee shaft 25 (Fig.2) is in the tub 23 with the same work team that poured through the gap 29 and impregnates thus the shaft 25.

From a removable device 60 device 4 prefabricated 31 falls on a feed conveyor 33 and the working area where it exerts a mechanical effect of system pressure shaft 35 with the annular grooves. Resulting semifinished product 31 is subjected to repeated bending and stretching in the transverse direction along its length, i.e., creates the effect of "sponge" - by alternating compression, bending and stretching.

Thus, there is a simultaneous penetration of the working structures of the surface layers of the semi-finished product in its thickness, as well as additional impregnation his work composition on boterman side through the porous conveyor 33. Impregnation of the conveyor 33 working composition is similar to the impregnation of the conveyor 17. From a removable device 60 prefabricated falls on the conveyor 40 and the working area of the device 6. In this zone, the semifinished product 31 has a mechanical hcpa and along the entire length, thereby increasing the rate of penetration of the working structures in the thickness of the semi-finished product. This brush shafts 42 simultaneously rotate around its axis and remove the surplus of working with the front surface of the semifinished product 31. In addition, the porous conveyor 40 is an additional supply of the semifinished product 31 working composition of the bath 45.

After working zone of the device 6 and the removable device 60 prefabricated 31 enters the working area of the device 7 and moves it together with the porous conveyor 48, where it has an intense mechanical action of the tool clamp 50 of the semi-finished product, made in the form of multiple vibraplane 51.

At this point in the effect of sponge absorbed into the dermis additional part of the working solution and there is a uniform distribution in the thickness of the semifinished product 31.

After leaving the working area of the device 7, the semifinished product 31 is removed from the conveyor belt 48 and stack on the aging. At a time when the semifinished product 31 is fed into the working area of the device 5, the conveyor 17 device 4 is placed next to the cake mix, etc.

At the end of processing semi-finished line on the plot for the aging 8 (Fig. 1), press on OTG draganovo semi-finished form the party, the mass of which is determined by the device 12 for weighing. A balanced party of prefabricated load in the drum 13, which perform the processes of washing, neutralization, washing, dyeing, fatliquoring, retanning organic tanning agent, wash. Then after dyeing and greasing processes semi-finished product is unloaded and lined to the site 14 to aging. After aging prefabricated press on a passing car 15, bred on the moveable machine 16 and sent to the drying compartment. The return fluid after tanning is not present, the consumption of chromium compounds of 0.9% by weight of the hide (counting on oxide), water consumption for processing 1000 kg of raw materials 14000 HP

The presence of in-line Assembly for holding a liquid processes allows you to change the execution scheme liquid processes.

Example 2. Processing of semi-finished leather with a loose structure for the proposed line can be carried out as follows. The hide after otlochno-ash processes are loaded into the drum 1 (Fig.1), which perform the rinsing process, obessolivanija, bating, wash. Then washed after bating prefabricated unload and press on a passing car 2 and the handle on the unit for liquid processes Anya and boterman side of the semi-finished product, on the devices 5, 6, 7 for additional application workflow composition on the surface of the semifinished product and introducing it into the thickness of the material with different mechanical impact. With this as a working composition is used in the solution of chrome tanning agent (in this embodiment, the processing device 3 does not apply). After processing on the unit for liquid handling prefabricated line on the plot for the aging 8 (Fig.1), press on squeezing machine 9, the plane on the planing machine 10, off the edges and fringes on site 11. After trimming the edges of the sliced semi-finished form the party, the mass of which is determined by the device 12 for weighing. A balanced party of prefabricated load in the drum 13, which perform the processes of washing, neutralization, washing, dyeing, fatliquoring, retanning organic tanning agent, wash. Then the semi-finished product is unloaded and lined to the site 14 to aging. After aging prefabricated press on the lock release machine 15, bred on the moveable machine 16 and sent to the drying compartment.

The return fluid after tanning is not present, the consumption of chromium compounds, by weight of the hide 1 (counting on oxide), water consumption for processing you and do not require a large mechanical impact for the introduction of working compositions is carried out analogously to example 1, while one or two of the devices of the unit for liquid processes (5, 6, 7) participates in the production line. The return fluid after tanning is not present, the consumption of chromium salts of 0.8% by weight of the hide (counting on oxide), water consumption for processing 1000 kg of raw materials 14000 HP

Example 4. When developing certain types of skin, for example, clean skin, prefabricated pre homeroot. In this case, the processing according to the invention is performed as follows. The hide after otlochno-ash process is loaded into the drum 1 (Fig.1), which perform the processes of obessolivanija, bating, rinsing and pickling. Then pickled prefabricated unload and press on the lock release machine 2 and the handle on the machine for liquid treatment as in example 1. With this as a working composition is used in the solution of chrome tanning agent. After processing on the unit for liquid processes chrome semi-finished product can be treated analogously to example 1, or by author. St. N 1642756, class C 14C 15/00 /1/, or by conventional technology /2/. Method of production of leather, chrome tanning of different thicknesses and range for the uppers, M, 1983) depending on production conditions. The return fluid after dussera 1 option 7900 l, 2 option 14000 HP

Example 5. Depending on the working part of the processing sequence of the various working bodies of the Assembly for liquid processing may vary. The hide after otlochno-ash process is loaded into the drum 1 (Fig. 1), which perform the rinsing process, obessolivanija, bating, rinsing and pickling. Then pickled prefabricated unload and press on the lock release machine 2 and the handle on the machine for liquid treatment by sequential processing device 4 for applying working on the front and boterman side of the semifinished product. Apply additional personnel and incorporate it into the thickness of the leather is consistently on the devices 5, 6, 7. Further processing is carried out analogously to example 1. The return fluid after tanning is not present, the consumption of chromium salts of 2.0% by weight of the hide (counting on oxide), water consumption for processing 1000 kg of raw materials 14000 HP

Available in the line unit can conduct simultaneous processing of 2-4 pieces of cake mix. The unit allows you to effectively carry out the impregnation of the working composition leather and semi-finished simultaneously from both sides, evenly respeci result, obtained in the processing of semi-finished leather on the proposed line and the prototype presented in the table.

1. Line for processing semi-finished leather, containing consistently located downstream planing machine, the section for trimming the edges of the semi-finished product, a device for weighing cement, the apparatus for carrying out poledouble liquid processing semi-finished, push and divorce machine and containing apparatus for liquid prior processing of the semifinished product and the means to aging of the semi-finished product, characterized in that it further provided with a unit for holding a liquid processing semi-finished product, the device for producing emulsions and two additional pull machines, while the course of the process before planing machine consistently set the apparatus for preliminary liquid processing semi-finished product, additional release tab machine, the device for producing emulsions, Assembly for holding a liquid processing semi-finished product, the plot for the aging of the semifinished product and a second additional release tab machine.

2. Line p. 1, characterized in that agresta for the application and implementation of working trains on the semi-finished product, the first device for applying working on the semi-finished product contains mounted on the frame and arranged one after the other of the upper and lower conveyors made of porous material, the single branch of each of which is installed with the possibility of contact with the mechanism of impregnation material conveyor, consisting of a bath with a working part that is located in it namesnik shaft and installed above the last anchor shaft, and between the branches of the upper conveyor is a system clamping shafts with the possibility of reciprocating motion perpendicular to the direction of movement of the conveyor on the frame of the lower conveyor attached table for feeding and rasprave semi-finished product, and under his working branch support table, a second device for the introduction of working in the semi-finished product has mounted on the frame of the conveyor belt of porous material for transfer of working structures and movement of the semifinished product, which is located under the working branch conveyor supporting means, and means for clamping the semi-finished product to the conveyor, made in the form of a system of clamping shaft with annular grooves placed in the frame, the third device for the introduction of work teams into the semi-stonesto contact with the mechanism of impregnation, the reference Desk is located under the working branch conveyor, the brush shaft mounted perpendicular to the movement of the conveyor and with the possibility of reciprocating motion in the same direction, the fourth device for the introduction of work teams into the semi-finished product contains mounted on the frame of the conveyor belt of porous material, the single branch of which is installed with the possibility of contact with the mechanism of impregnation, located under the working branch of the conveyor support table and several consecutive bars with notches along their entire length on facing the conveyor side, installed in the frame with the possibility of reciprocating movement relative to the working branch conveyor.

 

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2 tbl, 7 ex

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