Preparation device and method of synthetic leather

Abstract

The invention relates to the technical field of preparation devices, in particular to a synthetic leather preparation device and method.The synthetic leather preparation device comprises a drying box; the drying device is used for drying synthetic leather and coatings; the detection assembly comprises detection paper, and when the warping height of the coating on the surface of the synthetic leather is detected, the detection paper is driven to ascend and descend to be attached to the surface of the synthetic leather to move. The detection paper is driven to descend to be close to the surface of the synthetic leather, the detection paper is driven to move back and forth on the surface of the synthetic leather, and if a coating warps during drying of the synthetic leather, the warped coating extrudes the detection paper, so that the tension of the detection paper is changed, and the detection paper is driven to move back and forth. Whether the coating on the surface of the synthetic leather is warped or not is judged by detecting the tension change of the detection paper, the tension change of the detection paper is directly related to the warpage degree of the coating, and an operator can be helped to accurately judge the severity of the warpage problem, so that follow-up adjustment measures are properly taken.

Description

Technical Field

[0001] The invention relates to the technical field of synthetic leather preparation, and in particular to a synthetic leather preparation device and method. Background Art

[0002] Synthetic leather (also called artificial leather or imitation leather) is a leather product produced through chemical processes and artificial synthetic materials. It is often used to simulate the appearance and texture of natural leather. The preparation process of synthetic leather requires coating the substrate and drying and curing. The preparation of the coating liquid usually involves mixing PVC resin (polyvinyl chloride resin) with plasticizers, stabilizers, fillers, colorants, etc., adding solvents to dissolve them, forming a uniform coating liquid, and evenly covering the substrate with the coating liquid. At the same time, the thickness, uniformity and surface finish of the coating must be controlled. Drying and curing are key steps in the production of synthetic leather. The main purpose is to firmly adhere the coating layer to the substrate and cure the coating by heating, giving the synthetic leather its unique strength, flexibility and appearance.

[0003] In the curing process after drying of synthetic leather, the prior art generally faces the problem of uneven temperature between the surface and the inside of the material. This temperature difference is the main reason for the warping or deformation of synthetic leather. Due to uneven heat conduction, the temperature of some areas may be too high, resulting in a faster expansion rate in this area; while when the temperature of another part is lower, the expansion rate is slower or even shrinks. The difference in expansion or contraction rate in different areas will produce uneven stress inside the material. This stress difference will cause warping. In addition, the substrate (such as fabric or non-woven fabric) and coating (such as PVC or PU resin) of synthetic leather usually have different thermal expansion coefficients. During the heating process, there is a difference in the expansion rate of the substrate and the coating, resulting in uneven thermal stress between the two. Especially in high temperature environments, this difference in thermal expansion will affect the adhesion between the coating and the substrate, resulting in different tension differences, which will cause warping or bending. Specifically, the different expansion rates of the substrate and the coating lead to stress differences between different areas, especially between the surface of synthetic leather and the substrate. Uneven expansion may weaken the adhesion between the coating and the substrate, causing warping, delamination or surface unevenness. If the thickness of the coating is uneven, a thicker coating may be subjected to more heat, causing it to expand faster, while a thinner coating expands more slowly. The difference in coating thickness can cause local stress concentration, which in turn can cause warping of the coating surface or the entire coating. Uneven thermal expansion, differences in expansion coefficients between the substrate and the coating, and uneven coating thickness will all produce stress differences of varying degrees during the drying and curing process, causing warping, bending or deformation on the surface of the synthetic leather, thus affecting subsequent sales. The prior art lacks a device for repairing warping of synthetic leather. Summary of the invention

[0004] In view of the above-mentioned shortcomings of the prior art, the present invention provides a device and method for preparing synthetic leather, which can effectively solve the problem of warping, bending or deformation of the synthetic leather surface caused by uneven thermal expansion and differences in expansion coefficients between the substrate and the coating in the prior art.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: The present invention provides a synthetic leather preparation device and method, comprising: Drying oven, used for drying synthetic leather and coatings; A detection component, wherein the detection component includes detection paper. When detecting the warpage height of the coating on the surface of the synthetic leather, the detection paper is driven to move up and down to fit the surface of the synthetic leather, and the detection is performed by changing the tension of the detection paper according to the warpage height of the coating; A recording component for recording the warpage height of the coating; The repair component includes a pressure roller and a spray plate. A nozzle is opened at the lower end of the spray plate. Through the tension change of the detection paper, the spray plate sprays solvent to soften the surface coating of the synthetic leather. The pressure roller moves relatively to clamp the synthetic leather for rolling repair.

[0006] Preferably, a two-dimensional driving device is fixedly installed on both sides of the drying box, and two first movable plates are symmetrically installed on the driving end of the two-dimensional driving device, and a fixed plate is fixedly installed on one opposite side of the two first movable plates, and two pairs of first springs are fixedly installed on both sides of the fixed plates, and an elastic connecting plate is fixedly installed on the opposite end of each pair of the first springs, and the elastic connecting plates are respectively fixed to the two ends of the first movable plates, and two detection devices are fixedly installed on both sides of the fixed plates, and the detection devices are electrically connected to the drying box through a controller, and the detection end of the detection device is fixed to the elastic connecting plate, and two fixed frames are symmetrically installed on one opposite side of the two first movable plates, and rolling rods are rotatably installed on the lower ends of the two fixed frames, and the rolling rods are in rolling contact with the detection paper.

[0007] Preferably, two fixed brackets are fixedly installed on one side of one of the two-dimensional driving devices, and push rods are fixedly installed inside the two fixed brackets. A first electromagnet is fixedly installed on one side of the fixed bracket, and the first electromagnet is electrically connected to the controller. A first iron block is fixedly installed on the upper end of the push rod, and a second spring is fixedly installed between the push rod and the fixed bracket.

[0008] Preferably, a C-shaped frame is fixedly installed on one side of the drying box, a first connecting frame is fixedly installed on the side of the C-shaped frame close to the drying box, a slot is opened in the first connecting frame, an elastic conductive strip is fixedly installed in the slot, the elastic conductive strip is electrically connected to the controller, an external connecting plate is fixedly installed on the upper and lower ends of the first connecting frame, a downward pressure rod is slidably installed in the outer connecting plate, an inner downward pressure plate is fixedly installed on the lower end of the downward pressure rod, and a third spring is fixedly installed between the inner downward pressure plate and the outer connecting plate.

[0009] Preferably, two linear drive devices are fixedly installed on the upper and lower inner walls of the drying box, and a second movable plate is fixedly installed on the driving ends of the two linear drive devices. A lifting drive member is fixedly installed on the lower end of the second movable plate. The lifting drive member is electrically connected to the controller, and a lifting plate is fixedly installed on the output end of the lifting drive member, and the lifting plate is rotatably connected to the pressure roller.

[0010] Preferably, two groups of liquid storage boxes are symmetrically installed on the upper end of the second movable plate, each group of the liquid storage boxes is filled with solution, and two solenoid valves are symmetrically arranged below the second movable plate, the two solenoid valves are electrically connected to the controller, the solenoid valves are connected to the liquid storage boxes through pipe fittings, the lower ends of the two solenoid valves are connected to a regulating tank, the regulating tank is connected to the spraying plate through pipe fittings, a water outlet plate is fixedly installed in the regulating tank, a conical flow groove is opened in the water outlet plate, a conical valve is arranged above the conical flow groove, and the conical flow groove and the conical valve are connected. A flow gap is formed between the two regulating tanks, and a sealing plate is airtightly and slidably installed on the outer walls of the two regulating tanks, a linkage rod is fixedly installed in the sealing plate, one end of the linkage rod is fixed to the conical valve, a second iron block is fixedly installed on the upper end surface of the linkage rod and at a position away from the conical valve, two second connecting frames are symmetrically installed at the lower end of the second movable plate and at a position away from the lifting drive member, second electromagnets are fixedly installed in the two second connecting frames, the second electromagnets are electrically connected to the controller, and a fourth spring is fixedly installed between the second electromagnet and the second iron block.

[0011] Preferably, a moving frame is fixedly installed on one side of the two second moving plates, the moving frame penetrates the drying box and extends to the outside, a mounting plate is fixedly installed on the side of the moving frame away from the drying box, a mounting block is fixedly installed on the side of the mounting plate away from the moving frame, a rotating base is fixedly installed on the upper end of the mounting block, a conductive wheel is rotatably installed in the rotating base, and the conductive wheel is electrically connected to the controller.

[0012] A method for preparing synthetic leather, applied to a device for preparing synthetic leather, comprises the following steps: S1, conveying the synthetic leather into a drying box for heating and drying to solidify the surface coating of the synthetic leather; S2, after continuous drying for a period of time, the detection paper is driven to move relative to the synthetic leather surface and move, so as to detect the warping height of the synthetic leather surface; S3. The warping height of the test paper will be recorded by the recording component; S4, using the warping and the warping height detected by S3, the spray plate sprays the solvent onto the surface of the synthetic leather, and drives the pressing roller to move relatively to clamp the synthetic leather for rolling repair.

[0013] Compared with the known prior art, the technical solution provided by the present invention has the following beneficial effects: First, the detection paper is driven to descend and approach the surface of the synthetic leather. The detection paper is driven to reciprocate on the surface of the synthetic leather. If the coating warps during the drying of the synthetic leather, the warped coating will squeeze the detection paper, causing the tension of the detection paper to change. By detecting the change in the tension of the detection paper, it is determined whether the coating on the surface of the synthetic leather is warped. The change in the detection paper force is directly related to the degree of coating warping, which can help operators accurately determine the severity of the warping problem and take appropriate subsequent adjustment measures.

[0014] Second, after detecting that the paper force has changed, the controller will control the voltage supplied to the first electromagnet to increase the magnetic force of the first electromagnet. The first electromagnet with increased magnetic force will drive the top rod to move upward, and the force that causes the top rod to move upward acts on the elastic conductive strip to deform the elastic conductive strip. The deformed position of the elastic conductive strip can correspond to the warping position of the synthetic leather surface coating.

[0015] Third, the synthetic leather is clamped by driving the pressure rollers to move relative to each other, and the spray plate sprays the solution to soften the synthetic leather and its surface coating while reciprocatingly rolling the synthetic leather. In this process, the controller can determine the warping height of the coating by detecting the degree of warping on the surface of the synthetic leather and acting on the deformation position of the elastic conductive strip, so that the spray plate sprays more volume to soften the coating at the warping position and melt the coating, and the pressure roller applies greater force to roll the synthetic leather for repair. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the internal structure of the present invention; Figure 3 It is a structural schematic diagram of the detection component of the present invention; Figure 4 It is a schematic diagram of the exploded structure of the first movable plate of the present invention; Figure 5 for Figure 3 The enlarged schematic diagram at A in the middle; Figure 6 It is a structural schematic diagram of the C-shaped frame of the present invention; Figure 7 It is a schematic cross-sectional structural diagram of a C-shaped frame of the present invention; Figure 8 It is a schematic diagram of the structure of the repair component of the present invention; Fig. 9 is a schematic structural diagram of the second movable plate of the present invention; Fig.10 It is a structural schematic diagram of the regulating tank of the present invention; Fig.11 It is a schematic cross-sectional structural diagram of the regulating tank of the present invention; Fig.12 It is a structural schematic diagram of the mounting plate of the present invention.

[0018] Figure numerals: 1, drying box; 2, detection component; 201, two-dimensional driving device; 202, first moving plate; 203, fixed plate; 204, detection paper; 205, elastic connecting plate; 206, first spring; 207, detection device; 208, fixed frame; 209, rolling rod; 3, recording component; 301, fixed bracket; 302, first electromagnet; 303, first iron block; 304, sliding rod; 305, second spring; 306, top rod; 307, C-shaped frame; 308, first connecting frame; 309, elastic conductive strip; 310, external connecting plate; 311, lower pressure rod; 312, third Spring; 313, inner lower pressure plate; 4, repair component; 401, linear drive device; 402, second movable plate; 403, lifting drive member; 404, lifting plate; 405, pressure roller; 406, liquid storage box; 407, regulating tank; 408, solenoid valve; 409, spray plate; 410, second connecting frame; 411, second electromagnet; 412, fourth spring; 413, water outlet plate; 414, conical valve; 415, linkage rod; 416, sealing plate; 417, second iron block; 418, movable frame; 419, mounting plate; 420, mounting block; 421, rotating base; 422, conductive wheel. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] The present invention will be further described below in conjunction with the embodiments.

[0021] Example: Refer to Figures 1 to 12 , a synthetic leather preparation device, comprising: Drying box 1, used for drying synthetic leather and coating; The detection component 2 includes a detection paper 204. When detecting the warpage height of the coating on the surface of the synthetic leather, the detection paper 204 is driven to move up and down to fit the surface of the synthetic leather. The detection is performed by changing the tension of the detection paper 204 according to the warpage height of the coating. When the detection paper 204 detects the surface of the synthetic leather, the detection paper 204 can maintain dryness when being dried in the drying box 1, so as to avoid affecting the coating during the detection process. A recording component 3, used for recording the warpage height of the coating; The repair component 4 includes a pressure roller 405 and a spray plate 409. A nozzle is opened at the lower end of the spray plate 409. By detecting the tension change of the paper 204, the spray plate 409 sprays solvent to soften the surface coating of the synthetic leather. The pressure roller 405 moves relatively to clamp the synthetic leather for rolling and repair. The two pressure rollers 405 can move synchronously in the process of clamping the synthetic leather to roll and repair the synthetic leather.

[0022] Reference Figures 2 to 4, a two-dimensional driving device 201 is fixedly installed on both sides of the drying box 1, and two first movable plates 202 are symmetrically installed on the driving end of the two-dimensional driving device 201. A fixed plate 203 is fixedly installed on the opposite side of the two first movable plates 202. Two pairs of first springs 206 are fixedly installed on both sides of the fixed plate 203. An elastic connecting plate 205 is fixedly installed on the opposite end of each pair of first springs 206. The elastic connecting plate 205 is respectively fixed to the two ends of the first movable plate 202. Two detection devices 207 are fixedly installed on both sides of the fixed plate 203. The detection device 207 is electrically connected to the drying box 1 through a controller. The detection end of the detection device 207 is fixed to the elastic connecting plate 205. Two first movable plates 202 are symmetrically installed on the opposite side. The fixed frame 208 and the lower end of the two fixed frames 208 are rotatably installed with a rolling rod 209, and the rolling rod 209 is in rolling contact with the detection paper 204. After the detection paper 204 is squeezed due to the warping of the coating, the tension changes. The changed tension will drive the elastic connecting plate 205 to deform. After the elastic connecting plate 205 is deformed, it can be detected by the detection device 207. The detection device 207 is a tension sensor. The tension sensor can be used to detect the tension change on the elastic connecting plate 205. When the coating warps and causes the tension of the detection paper 204 to change, the tension sensor will sense this change and output a corresponding signal. The tension change and warping are monitored by measuring the magnitude of the force applied to the elastic connecting plate 205.

[0023] Reference Figure 5 One side of one of the two-dimensional driving devices 201 is fixedly installed with two fixed brackets 301, and a push rod 306 is fixedly installed inside the two fixed brackets 301. A first electromagnet 302 is fixedly installed on one side of the fixed bracket 301, and the first electromagnet 302 is electrically connected to the controller. A first iron block 303 is fixedly installed on the upper end of the push rod 306, and a second spring 305 is fixedly installed between the push rod 306 and the fixed bracket 301. After the input voltage of the first electromagnet 302 is increased through the control of the controller, the magnetism of the first electromagnet 302 will increase, thereby attracting the first iron block 303 to drive the push rod 306 to rise.

[0024] Reference Figure 6 to Figure 7A C-shaped frame 307 is fixedly installed on one side of the drying box 1, and a first connecting frame 308 is fixedly installed on the side of the C-shaped frame 307 close to the drying box 1. A slot is opened in the first connecting frame 308, and an elastic conductive strip 309 is fixedly installed in the slot. The elastic conductive strip 309 is electrically connected to the controller, and an external connecting plate 310 is fixedly installed on the upper and lower ends of the first connecting frame 308. A lower pressure rod 311 is slidably installed in the outer connecting plate 310, and an inner lower pressure plate 313 is fixedly installed on the lower end of the lower pressure rod 311. A third spring 312 is fixedly installed between the inner lower pressure plate 313 and the outer connecting plate 310. The elastic conductive strip 309 can be connected to an external power supply through the controller. At the same time, the elastic conductive strip 309 has a certain deformation ability and can be deformed after being squeezed by the top rod 306.

[0025] Reference Figures 8 to 9 Two linear drive devices 401 are fixedly installed on the upper and lower inner walls of the drying box 1, and a second movable plate 402 is fixedly installed on the driving ends of the two linear drive devices 401. A lifting drive member 403 is fixedly installed on the lower end of the second movable plate 402. The lifting drive member 403 is electrically connected to the controller, and a lifting plate 404 is fixedly installed on the output end of the lifting drive member 403. The lifting plate 404 is rotatably connected to the pressure roller 405.

[0026] Reference Figures 9 to 11Two groups of liquid storage boxes 406 are symmetrically installed on the upper end of the second movable plate 402, and each group of liquid storage boxes 406 is filled with solution. Two solenoid valves 408 are symmetrically arranged below the second movable plate 402. The two solenoid valves 408 are electrically connected to the controller, and the solenoid valves 408 are connected to the liquid storage boxes 406 through pipe fittings. The lower ends of the two solenoid valves 408 are connected to a regulating tank 407, and the regulating tank 407 is connected to a spray plate 409 through a pipe fitting. A water outlet plate 413 is fixedly installed in the regulating tank 407, and a conical flow groove is opened in the water outlet plate 413. A conical valve 414 is arranged above the conical flow groove, and a flow gap is formed between the conical flow groove and the conical valve 414. The outer walls of the two regulating tanks 407 are airtightly slidably installed with sealing plates 416, and a linkage rod 415 is fixedly installed in the sealing plate 416. One end of the linkage rod 415 is connected to the conical valve 414 is fixed, a second iron block 417 is fixedly installed on the upper end surface of the linkage rod 415 and at a position away from the conical valve 414, two second connecting frames 410 are symmetrically installed at the lower end of the second movable plate 402 and at a position away from the lifting drive member 403, a second electromagnet 411 is fixedly installed in the two second connecting frames 410, the second electromagnet 411 is electrically connected to the controller, a fourth spring 412 is fixedly installed between the second electromagnet 411 and the second iron block 417, the voltage of the second electromagnet 411 is adjusted by the controller, the second electromagnet 411 will drive the second iron block 417 to rise and fall during the process of voltage increasing, and compress the fourth spring 412, when the second electromagnet 411 loses its magnetism, the compressed fourth spring 412 will drive the second iron block 417 to reset, and the fourth spring is made of non-ferromagnetic material.

[0027] Reference Fig.12 A moving frame 418 is fixedly installed on one side of the two second moving plates 402, and the moving frame 418 extends through the drying box 1 to the outside, and a mounting plate 419 is fixedly installed on the side of the moving frame 418 away from the drying box 1, and a mounting block 420 is fixedly installed on the side of the mounting plate 419 away from the moving frame 418, and a rotating base 421 is fixedly installed on the upper end of the mounting block 420, and a conductive wheel 422 is rotatably installed in the rotating base 421, and the conductive wheel 422 is electrically connected to the controller. The conductive wheel 422 is electrically connected to the controller and is energized after contacting the elastic conductive strip 309. At this time, the controller will detect and adjust the rolling pressure of the pressure roller 405 on the synthetic leather.

[0028] The basic concept of the present invention is as follows: The synthetic leather is conveyed into the drying box 1 for preliminary drying. After the preliminary drying, the detection paper 204 is driven to detect whether the surface coating of the synthetic leather is warped, and the detection device 207 is used to detect the tension change of the detection paper 204. The tension change allows the top rod 306 to move and squeeze the elastic conductive strip 309 to deform. Then, the synthetic leather is clamped by driving the pressure roller 405 and the spray plate 409 to move relative to each other, and the spray plate 409 sprays solvent to soften the surface coating of the synthetic leather. The pressure roller 405 then reciprocates to roll the synthetic leather for repair.

[0029] The working principle of the present invention is as follows: The synthetic leather is conveyed into the drying box 1, and the drying box 1 is opened to dry the synthetic leather and the upper and lower surface coatings thereof (the curing time of the water-based coating, the solvent-based coating and the thermosetting coating will be different during the drying process in the drying box 1, and needs to be adjusted according to the curing time of different coatings). After the preliminary drying and curing, the drying box 1 is closed by the controller, and the first movable plate 202 is driven by the two-dimensional driving device 201 to move relatively close to the surface of the synthetic leather. After the first movable plate 202 is close to the surface of the synthetic leather, the detection paper 204 will be attached to the coating on the surface of the synthetic leather. At the same time, the two-dimensional driving device 201 will drive the first movable plate 202 and the detection paper 204 to move on the surface of the synthetic leather. When the coating on the surface of the synthetic leather is warped during the preliminary drying, the warped coating will contact and squeeze the detection paper 204, and the tension of the detection paper 204 will change. If the tension of the detection paper 204 changes, the elastic connecting plates 205 fixed at both ends of the detection paper 204 will be pulled, and the first spring 206 will be stretched by pulling the elastic connecting plates 205. At this time, the elastic connecting plates 205 and the first spring 206 will be stretched. The detection end of the detection device 207 fixedly connected to 205 will detect the displacement change of the elastic connection plate 205, so as to judge that the tension of the detection paper 204 has changed due to the detection of the warping of the coating. The detection device 207 controls the first electromagnet 302 through the controller to increase the magnetism of the first electromagnet 302 accordingly. The first electromagnet 302 with increased magnetism will drive the ejector rod 306 to slide and rise on the outer wall of the slide rod 304 to compress the second spring 305. At the same time, the rising ejector rod 306 will squeeze the elastic conductive strip 309 (the elastic conductive strip 309 is made of copper foil material, which is a very good conductive material. The copper foil has certain softness and ductility and can be bent), so that the elastic conductive strip 309 is squeezed and deformed. It should be noted that when the detection device 207 detects the warping change of the coating, different warping heights will cause different tension changes in the detection paper 204. Therefore, the detection device 207 controls the time for the controller to control the magnetic enhancement of the first electromagnet 302 to be different through different tension changes. The greater the tension change, the longer the magnetic enhancement time of the first electromagnet 302. After the synthetic leather in the drying box 1 is detected, the tension change of the synthetic surface coating will also act on the elastic conductive strip 309. The drying box 1 is opened by the controller, and the second movable plate 402 is driven to move by the linear drive device 401. The moving second movable plate 402 drives the movable frame 418 to move. When the movable frame 418 moves, it drives the mounting plate 419 and the mounting block 420 to move, so that the mounting block 420 drives the rotating base 421 and the conductive wheel 422 to move in the first connecting frame 308. The conductive wheel 422 will move with the elastic conductive strip 309. 9 is contacted to energize, and the lifting driving member 403 is controlled by the controller to drive the lifting plate 404 and the pressing roller 405 to move relative to each other to clamp the synthetic leather and move on the surface of the synthetic leather to roll the coating. At the same time, the controller will open the solenoid valve 408, and the solution stored in the liquid storage box 406 will flow into the inside of the regulating tank 407 through the pipe. When the conductive wheel 422 is driven to move and contact the elastic conductive strip 309 to energize, the elastic conductive strip 309 will contact the conductive strip 309 due to the warping change of the coating surface, and the position where the push rod 306 acts on the elastic conductive strip 309 will contact the conductive strip 309. The electric wheel 422 is disconnected, and the conductive wheel 422 is disconnected from the power supply. At this time, the controller controls the lifting drive 403 to drive the pressure roller 405 to move relatively to apply greater pressure to deeply roll the coating warping (after the elastic conductive strip 309 coating warping undergoes a significant change in deformation, the longer the conductive wheel 422 is disconnected from the elastic conductive strip 309, the greater the pressure that the controller controls the lifting drive 403 to drive the pressure roller 405 to move relatively to apply to roll the composite surface and the coating warping position). At the same time, the controller controls the electric current delivered to the second electromagnet 411. When the voltage is on, the second electromagnet 411 enhances the magnetism to attract the second iron block 417 to drive the linkage rod 415 and the conical valve 414 to move upward in the regulating tank 407, thereby increasing the flow gap of the repair component 4, increasing the flow rate of the solution and flowing from the flow gap to the spray plate 409 and spraying out, thereby deeply rolling the high warping height of the coating and spraying out more dissolving liquid to soften the coating. It should be noted that in the process of the relative movement of the pressure roller 405 to roll the synthetic leather and its coating, the rolling action can be reciprocated to repair the coating warping; After the repair is completed, the person presses the lower pressure rod 311 to drive the inner lower pressure plate 313 to slide down in the first connecting frame 308. The descending first connecting frame 308 will squeeze the elastic conductive strip 309, allowing the elastic conductive strip 309 to return to its original state, so as to facilitate the next inspection and repair.

[0030] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A synthetic leather preparation device, characterized in that: include: A drying box (1) for drying synthetic leather and coating; A detection component (2), the detection component (2) comprising detection paper (204), wherein when detecting the warping height of a coating on a surface of synthetic leather, the detection paper (204) is driven to move up and down to fit the surface of the synthetic leather, and the detection is performed by changing the tension of the detection paper (204) according to the warping height of the coating; A recording component (3) for recording the warpage height of the coating; The repair component (4) comprises a pressure roller (405) and a spray plate (409), wherein a nozzle is provided at the lower end of the spray plate (409), and the spray plate (409) sprays a solvent to soften the surface coating of the synthetic leather by changing the tension of the detection paper (204), and the pressure roller (405) moves relatively to clamp the synthetic leather to perform rolling repair.

2. The synthetic leather preparation device according to claim 1, characterized in that: Two-dimensional drive devices (201) are fixedly installed on both sides of the drying box (1); two first movable plates (202) are symmetrically installed on the driving end of the two-dimensional drive device (201); fixed plates (203) are fixedly installed on opposite sides of the two first movable plates (202); two pairs of first springs (206) are fixedly installed on both sides of the fixed plates (203); an elastic connecting plate (205) is fixedly installed on the opposite end of each pair of first springs (206); the elastic connecting plates (205) are respectively connected to the first movable plates (202) and the first movable plates (202) are connected to the first movable plates (202). ), two ends of the fixed plate (203) are fixedly installed with two detection devices (207) on both sides, the detection devices (207) are electrically connected to the drying box (1) through a controller, the detection end of the detection device (207) is fixed to the elastic connecting plate (205), two fixed frames (208) are symmetrically installed on opposite sides of the two first movable plates (202), and rolling rods (209) are rotatably installed at the lower ends of the two fixed frames (208), and the rolling rods (209) are in rolling contact with the detection paper (204).

3. The synthetic leather preparation device according to claim 2, characterized in that: One side of one of the two-dimensional driving devices (201) is fixedly mounted with two fixed brackets (301), a push rod (306) is fixedly mounted inside the two fixed brackets (301), a first electromagnet (302) is fixedly mounted on one side of the fixed bracket (301), the first electromagnet (302) is electrically connected to a controller, a first iron block (303) is fixedly mounted on the upper end of the push rod (306), and a second spring (305) is fixedly mounted between the push rod (306) and the fixed bracket (301).

4. The synthetic leather preparation device according to claim 1, characterized in that: A C-shaped frame (307) is fixedly installed on one side of the drying box (1), and a first connecting frame (308) is fixedly installed on a side of the C-shaped frame (307) close to the drying box (1). A slot is opened in the first connecting frame (308), and an elastic conductive strip (309) is fixedly installed in the slot. The elastic conductive strip (309) is electrically connected to the controller. An outer connecting plate (310) is fixedly installed at the upper and lower ends of the first connecting frame (308), and a lower pressure rod (311) is slidably installed in the outer connecting plate (310). An inner lower pressure plate (313) is fixedly installed at the lower end of the lower pressure rod (311), and a third spring (312) is fixedly installed between the inner lower pressure plate (313) and the outer connecting plate (310).

5. The synthetic leather preparation device according to claim 1, characterized in that: Two linear drive devices (401) are fixedly mounted on the upper and lower inner walls of the drying box (1); a second movable plate (402) is fixedly mounted on the driving ends of the two linear drive devices (401); a lifting drive member (403) is fixedly mounted on the lower end of the second movable plate (402); the lifting drive member (403) is electrically connected to a controller; a lifting plate (404) is fixedly mounted on the output end of the lifting drive member (403); and the lifting plate (404) is rotationally connected to a pressure roller (405).

6. The synthetic leather preparation device according to claim 5, characterized in that: Two groups of liquid storage boxes (406) are symmetrically mounted on the upper end of the second movable plate (402), each group of the liquid storage boxes (406) being filled with a solution, and two solenoid valves (408) are symmetrically mounted below the second movable plate (402), the two solenoid valves (408) being electrically connected to a controller, the solenoid valves (408) being connected to the liquid storage boxes (406) via pipe fittings, the lower ends of the two solenoid valves (408) being connected to a regulating tank (407), the regulating tank (407) being connected to a spraying plate (409) via pipe fittings, a water outlet plate (413) being fixedly mounted inside the regulating tank (407), a conical flow groove being provided inside the water outlet plate (413), a conical valve (414) being provided above the conical flow groove, and a flow channel being formed between the conical flow groove and the conical valve (414). The outer walls of the two regulating tanks (407) are airtightly and slidably mounted with sealing plates (416), a linkage rod (415) is fixedly mounted inside the sealing plates (416), one end of the linkage rod (415) is fixedly mounted to the conical valve (414), a second iron block (417) is fixedly mounted on the upper end surface of the linkage rod (415) at a position away from the conical valve (414), two second connecting frames (410) are symmetrically mounted at the lower end of the second movable plate (402) at a position away from the lifting drive member (403), a second electromagnet (411) is fixedly mounted inside the two second connecting frames (410), the second electromagnet (411) is electrically connected to the controller, and a fourth spring (412) is fixedly mounted between the second electromagnet (411) and the second iron block (417).

7. The synthetic leather preparation device according to claim 6, characterized in that: A movable frame (418) is fixedly mounted on one side of the two second movable plates (402); the movable frame (418) penetrates the drying box (1) and extends to the outside; a mounting plate (419) is fixedly mounted on the side of the movable frame (418) away from the drying box (1); a mounting block (420) is fixedly mounted on the side of the mounting plate (419) away from the movable frame (418); a rotating base (421) is fixedly mounted on the upper end of the mounting block (420); a conductive wheel (422) is rotatably mounted inside the rotating base (421); and the conductive wheel (422) is electrically connected to a controller.

8. A method for preparing synthetic leather, applied to the synthetic leather preparation device according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1, conveying the synthetic leather into a drying box (1) for heating and drying to solidify the surface coating of the synthetic leather; S2, after drying continues for a period of time, the detection paper (204) is driven to move relative to the surface of the synthetic leather and to move, thereby detecting the warping height of the surface of the synthetic leather; S3, the warping height detected by the detection paper (204) is recorded by the recording component (3); S4. Based on the warping and the warping height detected in S3, the spray plate (409) sprays the solvent onto the surface of the synthetic leather, and drives the pressing roller (405) to move relatively and clamp the synthetic leather for rolling and repairing.

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