A coating device for surface treatment of PU synthetic leather

Abstract

The utility model discloses a kind of PU synthetic leather surface treatment is with coating equipment, belong to synthetic leather processing equipment technical field, including bottom plate, the top of bottom plate is provided with coating groove, the both sides of coating groove are provided with folding mechanism.The utility model has the beneficial effect that by being equipped with coating mechanism, when using, the switch of motor one is opened, so that screw rod drives moving frame reciprocating, so it can drive gluing assembly and coating roller reciprocating, and then the specific position and specific size of PU synthetic leather can be reciprocating coating operation, simultaneously, the switch of electric push rod two is opened, so that, lifting frame can move up and down, different thickness synthetic leather can be accurately coated, while using auxiliary roller to flatten the synthetic leather after coating, it can also wipe synthetic leather before coating, so that coating effect is better, while using cooling fan to cool synthetic leather before coating and after coating.

Description

Technical Field

[0001] This utility model relates to the technical field of synthetic leather processing equipment, specifically a coating device for surface treatment of PU synthetic leather. Background Technology

[0002] Artificial leather is a plastic product that resembles leather in appearance and feel and can be used as a substitute. It is typically made with a fabric base coated with synthetic resin and various plastic additives. There are three main types: PVC artificial leather, PU artificial leather, and PU synthetic leather. PU is an abbreviation for polyurethane. PU artificial leather has a polyurethane outer layer. It is widely used for the decoration of bags, clothing, shoes, vehicles, and furniture, and has gained increasing market acceptance. Its wide range of applications, large quantities, and diverse varieties far surpass those of traditional natural leather. Synthetic leather is a plastic product that mimics the composition and structure of natural leather and can be used as a substitute. It is typically made with an impregnated non-woven fabric as the mesh layer and a microporous polyurethane layer as the grain layer. Both its front and back are very similar to leather, and it has a certain degree of breathability, making it closer to natural leather than ordinary artificial leather. The processing of synthetic leather requires a coating process.

[0003] Existing coating equipment for PU synthetic leather surface treatment has the following disadvantages: its function is relatively simple, only having a coating function. After coating, it still needs to be transported to other equipment for leveling and drying operations, resulting in low work efficiency and making it unsuitable for mass production of synthetic leather. Utility Model Content

[0004] To address the problems mentioned in the background section, this invention provides a coating device for the surface treatment of PU synthetic leather, which has a coating mechanism. This addresses the shortcomings of existing coating devices for PU synthetic leather surface treatment, such as limited functionality (only coating) and the need for transporting the material to other equipment for leveling and drying after coating, resulting in low efficiency and hindering mass production of synthetic leather.

[0005] The technical solution of this utility model is: a coating device for surface treatment of PU synthetic leather, including a base plate, a coating tank is provided on the top of the base plate, a take-up and release mechanism is provided on both sides of the coating tank, a limit mechanism and a coating mechanism are provided on the top of the coating tank, and a recycling mechanism is provided inside the coating tank.

[0006] The coating mechanism includes a vertical plate, a lead screw, a movable frame, a fixed frame, a lifting frame, a cooling fan, a glue dispensing assembly, a vertical plate, an auxiliary roller, a coating roller, a mounting plate, and a motor. The fixed frame is fixedly installed on the top of the coating tank, the vertical plate is fixedly installed on the top of the fixed frame, and the motor is fixedly installed on the outer wall of one side of the vertical plate. The output end of the motor is fixedly connected to the lead screw. The movable frame is movably sleeved on the outside of the lead screw and is slidably connected to the top wall of the fixed frame. An electric push rod is fixedly installed at the bottom of the movable frame, and the output end of the electric push rod is fixedly connected to the lifting frame. The vertical plate is fixedly installed at the bottom of the lifting frame. The cooling fan is embedded inside the lifting frame. The two ends of the auxiliary roller are movably inserted into the inside of the vertical plate.

[0007] Furthermore, a support leg is fixedly installed at the bottom of the base plate, and a foot pad is fixedly installed at the bottom end of the support leg.

[0008] Furthermore, the take-up and release mechanism includes a mounting frame, a connecting shaft, and a take-up and release roller. The mounting frame is fixedly installed on the top of the two side walls of the coating tank. The mounting frame has a connecting groove inside. The front and rear ends of the connecting shaft are respectively movably inserted into the inside of the connecting groove. The take-up and release roller is fixedly sleeved on the outside of the connecting shaft.

[0009] Furthermore, the recycling mechanism includes a waste pipe, a filter screen, a support frame, a waste trough, an electric push rod, and a scraper. The support frame is fixedly installed on the inner wall of the coating tank, and the filter screen is located on top of the support frame.

[0010] Furthermore, the electric push rod is fixedly installed on one side of the outer wall of the coating tank, and a waste material opening is opened inside the other side wall of the coating tank. The waste material trough is fixedly installed on one side of the outer wall of the coating tank and is connected to the coating tank. A protective net is provided inside the side wall of the coating tank at the connection point.

[0011] Furthermore, the limiting mechanism includes a mounting frame, a horizontal frame, a limiting rod, a spring, and a limiting roller. The mounting frame is fixedly installed on the top of the coating tank. The limiting rod is movably inserted into the interior of the mounting frame. The spring is movably sleeved on the outside of the limiting rod and located on the top of the horizontal frame. The front and rear ends of the limiting roller are movably inserted into the front and rear walls of the horizontal frame, respectively.

[0012] Furthermore, the dispensing assembly is fixedly installed at the bottom of the lifting frame, and the mounting plate is fixedly installed at the bottom of the lifting frame and located on the front and rear sides of the dispensing assembly. A second motor is fixedly installed on one outer wall of the front mounting plate, and the output end of the second motor is fixedly connected to the coating roller.

[0013] This utility model provides an improved coating device for surface treatment of PU synthetic leather, which has the following improvements and advantages compared with the prior art:

[0014] The coating mechanism, when in use, involves turning on the motor one switch, which causes the lead screw to drive the moving frame to move back and forth, thereby driving the coating assembly and coating roller to move back and forth. This allows for reciprocating coating operations on specific locations and dimensions of the PU synthetic leather. Simultaneously, turning on the electric push rod two switch allows the lifting frame to move up and down, enabling precise coating of synthetic leather of different thicknesses. An auxiliary roller is used to level the coated synthetic leather and can also be used to scrape the synthetic leather before coating, resulting in a better coating effect. A cooling fan is used to cool the synthetic leather before and after coating, allowing the coated adhesive to cool and solidify quickly without the need for drying, greatly improving work efficiency. Attached Figure Description

[0015] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0016] Figure 1 This is a three-dimensional schematic diagram of the coating mechanism of this utility model;

[0017] Figure 2 This is a cross-sectional view of the present invention;

[0018] Figure 3 This is a front view schematic diagram of the present invention;

[0019] Figure 4 This is a schematic diagram of the internal structure of the coating mechanism of this utility model;

[0020] Explanation of reference numerals in the attached drawings: 1. Base plate; 2. Support leg; 3. Coating trough; 4. Foot pad; 5. Mounting frame; 6. Insert shaft; 7. Take-up and release rollers; 8. Waste opening; 9. Waste trough; 10. Support frame; 11. Filter screen; 12. Electric push rod one; 13. Scraper; 14. Waste pipe; 15. Mounting frame; 16. Horizontal frame; 17. Limiting rod; 18. Spring; 19. Limiting roller; 20. Vertical plate; 21. Lead screw; 22. Moving frame; 23. Fixed frame; 24. Lifting frame; 25. Cooling fan; 26. Glue dispensing assembly; 27. Vertical plate; 28. Auxiliary roller; 29. ​​Coating roller; 30. Mounting plate; 31. Motor one. Detailed Implementation

[0021] The following will be combined with the appendix Figures 1 to 4 This utility model will be described in detail, and the technical solutions in the embodiments of this utility model will be clearly and completely described. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0022] This utility model provides an improved coating device for surface treatment of PU synthetic leather, such as... Figure 1-4 As shown in the figure, the base plate 1 is provided with a coating tank 3 on the top of the base plate 1. The coating tank 3 is provided with a take-up and release mechanism on both sides. The top of the coating tank 3 is provided with a limit mechanism and a coating mechanism. The inside of the coating tank 3 is provided with a recycling mechanism.

[0023] The coating mechanism includes a vertical plate 20, a lead screw 21, a movable frame 22, a fixed frame 23, a lifting frame 24, a cooling fan 25, a glue dispensing assembly 26, a vertical plate 27, an auxiliary roller 28, a coating roller 29, a mounting plate 30, and a motor 31. The fixed frame 23 is fixedly installed on the top of the coating tank 3. The vertical plate 20 is fixedly installed on the top of the fixed frame 23. The motor 31 is fixedly installed on the outer wall of one side of the vertical plate 20. The output end of the motor 31 is fixedly connected to the lead screw 21. The movable frame 22 is movably sleeved on the outside of the lead screw 21 and is slidably connected to the top wall of the fixed frame 23. An electric push rod 2 is fixedly installed at the bottom of the movable frame 22. The output end of the electric push rod 2 is fixedly connected to the lifting frame 24. The vertical plate 27 is fixedly installed at the bottom of the lifting frame 24. The cooling fan 25 is embedded inside the lifting frame 24. The two ends of the auxiliary roller 28 are movably inserted into the inside of the vertical plate 27. The glue dispensing assembly 26 is fixedly installed at the bottom of the lifting frame 24. The mounting plate 30 is also fixedly installed. The 30 is fixedly installed at the bottom of the lifting frame 24 and located on both sides of the glue dispensing assembly 26. A second motor is fixedly installed on one outer wall of the front mounting plate 30. The output end of the second motor is fixedly connected to the coating roller 29. With the coating mechanism, when in use, the switch of the first motor 31 is turned on, so that the lead screw 21 drives the moving frame 22 to move back and forth, which in turn drives the glue dispensing assembly and the coating roller 29 to move back and forth. This allows for reciprocating coating operations on the specific position and size of the PU synthetic leather. At the same time, the switch of the second electric push rod is turned on, so that the lifting frame 24 can move up and down, allowing for precise coating of synthetic leather of different thicknesses. The auxiliary roller 28 is used to level the coated synthetic leather and can also be used to scrape the synthetic leather before coating, resulting in a better coating effect. Meanwhile, the cooling fan 25 is used to cool the synthetic leather before and after coating, so that the coated glue can cool and solidify quickly without drying, greatly improving work efficiency.

[0024] A support leg 2 is fixedly installed at the bottom of the base plate 1, and a foot pad 4 is fixedly installed at the bottom end of the support leg 2. An external power supply provides power to the device. An external controller is connected to the device. The controller is electrically connected to the motor, the glue application assembly, and the electric push rod. The glue application assembly is connected to an external glue delivery system.

[0025] The take-up and unload mechanism includes a mounting frame 5, a connecting shaft 6, and a take-up and unload roller 7. The mounting frame 5 is fixedly installed on the top of the two side walls of the coating tank 3. The mounting frame 5 has a connecting groove inside. The front and rear ends of the connecting shaft 6 are movably inserted into the inside of the connecting groove. The take-up and unload roller 7 is fixedly sleeved on the outside of the connecting shaft 6. In use, the connecting shaft 6 can be moved along the connecting groove, and then the synthetic leather can be wound around the outside of the take-up and unload roller 7. This makes it easy to install and remove the take-up and unload roller 7.

[0026] The recycling mechanism includes a waste pipe 14, a filter screen 11, a support frame 10, a waste trough 9, an electric push rod 12, and a scraper 13. The support frame 10 is fixedly installed on the inner wall of the coating tank 3. The filter screen 11 is located on the top of the support frame 10. The electric push rod 12 is fixedly installed on one side of the outer wall of the coating tank 3. A waste opening 8 is opened inside the other side wall of the coating tank 3. The waste trough 9 is fixedly installed on one side of the outer wall of the coating tank 3 and is connected to the coating tank 3. The connection point of the coating tank 3 is connected to the outer wall of the coating tank 3. The side wall is equipped with a protective net. During use, excess colloid falls into the coating tank 3. After the impurities are filtered by the filter screen 11, it falls to the bottom of the coating tank 3, which allows the colloid to be recycled and reused, saving production costs. Turning on the switch of the electric push rod 12 allows the scraper 13 to scrape the surface of the filter screen 11, so that the waste material moves through the waste opening 8 to the waste tank 9 for centralized collection and cleaning. Excess colloid flows back into the coating tank 3 through the connecting part. The protective net can prevent impurities from flowing back.

[0027] The limiting mechanism includes a mounting frame 15, a horizontal frame 16, a limiting rod 17, a spring 18, and a limiting roller 19. The mounting frame 15 is fixedly installed on the top of the coating tank 3. The limiting rod 17 is movably inserted into the interior of the mounting frame 15. The spring 18 is movably sleeved on the outside of the limiting rod 17 and located on the top of the horizontal frame 16. The front and rear ends of the limiting roller 19 are movably inserted into the front and rear walls of the horizontal frame 16, respectively. In use, the limiting roller 19 engages with the synthetic leather. At the same time, the limiting rod 17 moves the horizontal frame 16 under the action of the spring 18, thereby causing the limiting roller 19 to contact the synthetic leather, thus providing a tensioning effect and allowing the synthetic leather to be straightened for better coating.

[0028] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0029] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A coating device for surface treatment of PU synthetic leather, comprising a base plate (1), characterized in that: The top of the base plate (1) is provided with a coating tank (3), and the two sides of the coating tank (3) are provided with a receiving and releasing mechanism. The top of the coating tank (3) is provided with a limiting mechanism and a coating mechanism, and the inside of the coating tank (3) is provided with a recycling mechanism. The coating mechanism includes a vertical plate (20), a lead screw (21), a moving frame (22), a fixed frame (23), a lifting frame (24), a cooling fan (25), a glue dispensing assembly (26), a vertical plate (27), an auxiliary roller (28), a coating roller (29), a mounting plate (30), and a motor (31). The fixed frame (23) is fixedly installed on the top of the coating tank (3), the vertical plate (20) is fixedly installed on the top of the fixed frame (23), and the motor (31) is fixedly installed on the outer wall of one side of the vertical plate (20). The output end of 31) is fixedly connected to the lead screw (21). The movable frame (22) is movably sleeved on the outside of the lead screw (21) and is limited and slidably connected to the top wall of the fixed frame (23). The bottom of the movable frame (22) is fixedly installed with an electric push rod II. The output end of the electric push rod II is fixedly connected to the lifting frame (24). The upright plate (27) is fixedly installed at the bottom of the lifting frame (24). The cooling fan (25) is embedded in the inside of the lifting frame (24). The two ends of the auxiliary roller (28) are movably inserted into the inside of the upright plate (27).

2. The coating equipment for surface treatment of PU synthetic leather as described in claim 1, characterized in that: The bottom of the base plate (1) is fixedly installed with a support leg (2), and the bottom end of the support leg (2) is fixedly installed with a foot pad (4).

3. The coating equipment for surface treatment of PU synthetic leather as described in claim 1, characterized in that: The take-up and release mechanism includes a mounting frame (5), a plug-in shaft (6), and a take-up and release roller (7). The mounting frame (5) is fixedly installed on the top of the two side walls of the coating tank (3). The mounting frame (5) has a plug-in groove inside. The front and rear ends of the plug-in shaft (6) are respectively movably inserted into the inside of the plug-in groove. The take-up and release roller (7) is fixedly sleeved on the outside of the plug-in shaft (6).

4. The coating equipment for surface treatment of PU synthetic leather as described in claim 1, characterized in that: The recycling mechanism includes a waste pipe (14), a filter screen (11), a support frame (10), and a waste trough (9). An electric push rod (12) and a scraper (13) are provided. The support frame (10) is fixedly installed on the inner wall of the coating tank (3). The filter screen (11) is set on the top of the support frame (10).

5. The coating equipment for surface treatment of PU synthetic leather as described in claim 4, characterized in that: The electric push rod (12) is fixedly installed on one side of the outer wall of the coating tank (3). The other side wall of the coating tank (3) has a waste opening (8). The waste tank (9) is fixedly installed on one side of the outer wall of the coating tank (3). The waste tank (9) is connected to the coating tank (3). A protective net is provided inside the side wall of the coating tank (3) at the connection point.

6. The coating equipment for surface treatment of PU synthetic leather as described in claim 1, characterized in that: The limiting mechanism includes a mounting frame (15), a horizontal frame (16), a limiting rod (17), a spring (18), and a limiting roller (19). The mounting frame (15) is fixedly installed on the top of the coating tank (3). The limiting rod (17) is movably inserted into the interior of the mounting frame (15). The spring (18) is movably sleeved on the outside of the limiting rod (17) and located on the top of the horizontal frame (16). The front and rear ends of the limiting roller (19) are movably inserted into the front and rear walls of the horizontal frame (16), respectively.

7. The coating equipment for surface treatment of PU synthetic leather as described in claim 1, characterized in that: The dispensing assembly (26) is fixedly installed at the bottom of the lifting frame (24). The mounting plate (30) is fixedly installed at the bottom of the lifting frame (24) and located on the front and rear sides of the dispensing assembly (26). A second motor is fixedly installed on one side of the outer wall of the mounting plate (30) at the front. The output end of the second motor is fixedly connected to the coating roller (29).

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