Coating device for release paper

Abstract

The utility model relates to the technical field of release paper, and discloses a coating device for release paper, which comprises a rack, a winding and unwinding mechanism is arranged in the rack, the top of the rack is fixedly connected with a discharging hollow pipe, the bottom of the discharging hollow pipe is fixedly communicated with a plurality of spray heads, and the spray heads are fixedly connected with the rack. Two sets of blocking mechanisms are arranged at the top of the discharging hollow pipe, a painting mechanism is arranged in the rack, a coating box is fixedly connected to the top of the rack, a stirring mechanism is arranged in the coating box, and a booster pump is arranged at the top of the coating box; and two inclined flow guide plates which are symmetrically arranged are fixedly connected to the inner wall of the rack and located below the discharging hollow pipe. Through the arrangement of the blocking mechanism, the coating flowing and falling width can be adjusted according to the width of the release paper, the size of the release paper can be accurately matched, the coating is prevented from being wasted in the area outside the edge of the release paper, and therefore the coating utilization rate is increased, and coating waste is reduced.

Description

Technical Field

[0001] This utility model relates to the field of release paper technology, and in particular to a coating device for release paper. Background Technology

[0002] Release paper is a special type of anti-stick paper, whose layers generally have a textured, embossed structure. Release paper is widely used in the artificial leather and synthetic leather industry as a carrier in the production of artificial and synthetic leather. That is, during production, one or more coats of coating are applied to the release paper to form leather of different colors and patterns.

[0003] For example, Chinese utility model patent application number 202220608543.1 discloses a coating device for release paper coating equipment. The combination of the release paper spreading component and the coating component allows the coating to be evenly applied to the release paper, avoiding waste of coating and reduced work efficiency due to uneven and repeated coating. Multiple auxiliary rollers make the release paper spread more taut, facilitating coating. The on / off valve allows for convenient control of coating use. The V-shaped guide makes the coating flow more evenly and accurately. Multiple discharge nozzles make the coating flow faster and more evenly. The combination of these components effectively solves the problem of uneven coating in existing coating devices, which requires repeated coating, wastes coating, and affects work efficiency.

[0004] In the aforementioned patent, the coating width is fixed and cannot be adjusted according to the width of the release paper to be processed. When coating the release paper, the coating flows through the discharge nozzle onto the coating drive roller, which rotates continuously to roll the coating onto the surface of the release paper. During this process, if the width of the release paper is smaller than the width of the coating, a large amount of coating will be wasted. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a coating device for release paper.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a coating device for release paper, comprising a frame, a winding and unwinding mechanism inside the frame, a discharge hollow pipe fixedly connected to the top of the frame, a plurality of nozzles fixedly connected to the bottom of the discharge hollow pipe, two sets of sealing mechanisms at the top of the discharge hollow pipe, a coating mechanism inside the frame, a paint tank fixedly connected to the top of the frame, a stirring mechanism inside the paint tank, two symmetrically arranged inclined guide plates fixedly connected to the inner wall of the frame below the discharge hollow pipe, a booster pump at the top of the paint tank, and a pressure port of the booster pump connected to the paint tank.

[0007] As a further description of the above technical solution:

[0008] The unwinding and take-up mechanism includes a drive motor, an unwinding roller, and a driven roller. The drive motor is fixedly installed on one side of the frame. A rotating shaft is fixedly connected to the output end of the drive motor. A sprocket is sleeved on the outer surface of the rotating shaft. A take-up roller is fixedly connected to the other end of the rotating shaft. The unwinding roller and the driven roller are rotatably installed between the front and back sides of the inner wall of the frame, respectively. The unwinding and take-up mechanism allows the release paper to be laid out flat while being subjected to a uniform and gentle pulling force, avoiding the problem of the release paper moving too fast or too slow and uneven coating during the dyeing process.

[0009] As a further description of the above technical solution:

[0010] The sealing mechanism includes a second rotating shaft, a first support block, and a threaded rod. The second rotating shaft is rotatably mounted on the top of the discharge hollow pipe. A first bevel gear is fitted on the outer surface of the second rotating shaft. The first support block is fixedly mounted on the top of the discharge hollow pipe. A limit rod is fixedly connected to one side of the first support block, and the second support block is fixedly connected to the other end of the limit rod. One end of the threaded rod is rotatably mounted on one side of the second support block and moves through the first support block. A second bevel gear is fixedly connected to the end of the threaded rod near the paint tank. A movable block is threadedly connected to the outer surface of the threaded rod and is movably fitted on the outer surface of the limit rod. A U-shaped push rod is fixedly connected to the bottom of the movable block, and a piston and a triangular block are fixedly connected to the other end of the U-shaped push rod. By setting up the sealing mechanism, the paint flow width can be adjusted according to the size of the release paper, thereby avoiding paint waste.

[0011] As a further description of the above technical solution:

[0012] The first bevel gear and the second bevel gear mesh with each other. A rotating handle is fixedly connected to the top of the second rotating shaft. The piston is interference-fitted with the hollow discharge tube. The triangular block abuts against the outer surface of the inclined guide plate.

[0013] As a further description of the above technical solution:

[0014] The coating mechanism includes a second drive motor fixedly installed on one side of the frame. The output end of the second drive motor is fixedly connected to a coating roller. The coating roller continuously rolls the release paper to complete the coating process.

[0015] As a further description of the above technical solution:

[0016] The stirring mechanism includes a stirring rod that is rotatably mounted on the paint tank. One end of the stirring rod is fitted with a sprocket. The stirring mechanism can stir the paint in the paint tank to prevent the paint from solidifying due to prolonged standing.

[0017] As a further description of the above technical solution:

[0018] A chain is connected between the outer surfaces of sprocket two and sprocket one. The chain can transmit the kinetic energy of sprocket one to sprocket two.

[0019] As a further description of the above technical solution:

[0020] The top of the paint tank is fixedly connected to a filling port, and a connecting pipe is fixedly connected between the paint tank and the discharge hollow pipe.

[0021] This utility model has the following beneficial effects:

[0022] 1. Compared with the prior art, the coating device for release paper can adjust the paint flow width according to the width of the release paper by setting the sealing mechanism. It can accurately match the size of the release paper and avoid paint waste in areas outside the edge of the release paper, thereby improving paint utilization and reducing paint waste.

[0023] 2. Compared with the prior art, this coating device for release paper, through the setting of a stirring mechanism and a booster pump, when the coating is relatively viscous, the booster pump pressurizes the coating tank, increasing the internal pressure of the coating tank. Under the action of pressure, the coating in the coating tank can flow smoothly, avoiding problems such as blockage and difficulty in feeding caused by viscosity. In addition, the stirring mechanism stirs the coating in the coating tank to prevent the coating from solidifying due to long-term standing, maintaining the flowability of the coating, providing uniform coating for the dyeing of release paper, and improving the uniformity of subsequent dyeing. Attached Figure Description

[0024] Figure 1 This is a three-dimensional schematic diagram of the overall structure of a coating device for release paper proposed in this utility model.

[0025] Figure 2 This is a three-dimensional schematic diagram of the coating box and the discharge hollow tube of a coating device for release paper proposed in this utility model.

[0026] Figure 3 This is a three-dimensional schematic diagram of the bevel gear one and bevel gear two structures of a coating device for release paper proposed in this utility model;

[0027] Figure 4 This is a three-dimensional schematic diagram of the structure of the unwinding roller and coating roller of a coating device for release paper proposed in this utility model.

[0028] Figure 5 This is a three-dimensional schematic diagram of the structure of a coating device for release paper, including sprocket one and sprocket two, proposed in this utility model.

[0029] Legend:

[0030] 1. Frame; 2. Hollow discharge pipe; 3. Nozzle; 4. Paint tank; 5. Booster pump; 6. Inclined guide plate; 7. Drive motor one; 8. Unwinding roller; 9. Driven roller; 10. Rotating shaft one; 11. Sprocket one; 12. Rewinding roller; 13. Rotating shaft two; 14. Support block one; 15. Threaded rod; 16. Bevel gear one; 17. Limiting rod; 18. Support block two; 19. Moving block; 20. U-shaped push rod; 21. Piston; 22. Triangular block; 23. Bevel gear two; 24. Rotating handle; 25. Drive motor two; 26. Paint roller; 27. Stirring rod; 28. Sprocket two; 29. ​​Chain; 30. Injection port; 31. Connecting pipe. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figure 1-5 This utility model provides a coating device for release paper, comprising a frame 1, a winding and unwinding mechanism inside the frame 1, a discharge hollow pipe 2 fixedly connected to the top of the frame 1, several nozzles 3 fixedly connected to the bottom of the discharge hollow pipe 2, two sets of sealing mechanisms at the top of the discharge hollow pipe 2, a coating mechanism inside the frame 1, a paint tank 4 fixedly connected to the top of the frame 1, a stirring mechanism inside the paint tank 4, two symmetrically arranged inclined guide plates 6 fixedly connected to the inner wall of the frame 1 below the discharge hollow pipe 2, a filling port 30 fixedly connected to the top of the paint tank 4, and a connecting pipe 31 fixedly connected between the paint tank 4 and the discharge hollow pipe 2.

[0033] The unwinding and take-up mechanism includes a drive motor 7, an unwinding roller 8, and a driven roller 9. The drive motor 7 is fixedly installed on one side of the frame 1. The output end of the drive motor 7 is fixedly connected to a rotating shaft 10. A sprocket 11 is sleeved on the outer surface of the rotating shaft 10. The other end of the rotating shaft 10 is fixedly connected to a take-up roller 12. The unwinding roller 8 and the driven roller 9 are respectively rotatably installed between the front and back sides of the inner wall of the frame 1.

[0034] The sealing mechanism includes a second rotating shaft 13, a first support block 14, and a threaded rod 15. The second rotating shaft 13 is rotatably mounted on the top of the discharge hollow pipe 2. A bevel gear 16 is fitted on the outer surface of the second rotating shaft 13. The first support block 14 is fixedly mounted on the top of the discharge hollow pipe 2. A limit rod 17 is fixedly connected to one side of the first support block 14, and a second support block 18 is fixedly connected to the other end of the limit rod 17. One end of the threaded rod 15 is rotatably mounted on one side of the second support block 18 and moves through the first support block 14. A bevel gear 23 is fixedly connected to the end of the threaded rod 15 near the paint tank 4. The threads of the two threaded rods 15 are clockwise and counterclockwise respectively. The outer surface of the threaded rods 15 is threaded with a moving block 19, and the moving block 19 is movably sleeved on the outer surface of the limiting rod 17. The bottom of the moving block 19 is fixedly connected with a U-shaped push rod 20. The other end of the U-shaped push rod 20 is fixedly connected with a piston 21 and a triangular block 22 respectively. The first bevel gear 16 and the second bevel gear 23 mesh with each other. The top of the second rotating shaft 13 is fixedly connected with a rotating handle 24. The piston 21 is interference-fitted with the discharge hollow tube 2. The triangular block 22 abuts against the outer surface of the inclined guide plate 6.

[0035] By setting up a sealing mechanism, the paint flow width can be adjusted according to the width of the release paper, which can accurately match the size of the release paper and avoid paint waste in areas outside the edge of the release paper, thereby improving paint utilization and reducing paint waste.

[0036] The coating mechanism includes a second drive motor 25 fixedly installed on one side of the frame 1, and a paint roller 26 is fixedly connected to the output end of the second drive motor 25.

[0037] The mixing mechanism includes a stirring rod 27 rotatably mounted on the paint tank 4. One end of the stirring rod 27 is fitted with a sprocket 28. A chain 29 is connected between the outer surfaces of the sprocket 28 and the sprocket 11. A booster pump 5 is installed on the top of the paint tank 4.

[0038] With the addition of a stirring mechanism and a booster pump 5, when the coating is viscous, the booster pump 5 pressurizes the coating tank 4, increasing the internal pressure of the coating tank 4. This pressure allows the coating in the coating tank 4 to flow smoothly, avoiding problems such as blockage and difficulty in feeding due to viscosity. Furthermore, the stirring mechanism stirs the coating in the coating tank 4 to prevent it from solidifying due to prolonged standing, maintaining the flowability of the coating and providing a uniform coating for the release paper, thus improving the uniformity of subsequent coating.

[0039] Working principle: When the release paper needs to be coated, the worker first injects the coating into the coating box 4 through the injection port 30. After the coating is injected, the sealing cover is closed. Then, one end of the release paper wound on the unwinding roller 8 is passed through the gap between the driven roller 9 and the coating roller 26 and wound onto the take-up roller 12.

[0040] Then, the staff twists the rotating handle 24 according to the width of the release paper. The bevel gear 16 drives the two bevel gears 23 to rotate, which in turn drives the two threaded rods 15 to rotate. Under the limiting action of the limiting rod 17, the two moving blocks 19 move towards the rotating handle 24, which in turn drives the two U-shaped push rods 20 to push the two pistons 21 and the two triangular blocks 22 respectively. They move towards the rotating handle 24 inside the discharge hollow tube 2 and the inclined guide plate 6, thereby blocking part of the nozzle 3 and the inclined guide plate 6 below the discharge hollow tube 2, restricting the flow space of the paint inside the discharge hollow tube 2 and the inclined guide plate 6, and realizing the adjustment of the paint flow width according to the different widths of the release paper.

[0041] After completing the above preparations, start drive motor 7, drive motor 25 and booster pump 5. Under the pressure of booster pump 5, the paint in paint tank 4 flows through connecting pipe 31 and discharge hollow pipe 2 in sequence, and finally flows out from nozzle 3. Under the guidance of inclined guide plate 6, the paint flows onto paint roller 26. At the same time, drive motor 7 drives take-up roller 12 to rotate coaxially. Release paper is pulled out from unwind roller 8 and wound onto take-up roller 12. When release paper passes between paint roller 26 and driven roller 9, and through the output end of drive motor 25, paint roller 26 continuously rolls release paper to complete the coating of release paper.

[0042] During the process of the drive motor 7 driving the take-up roller 12 to rotate, the sprocket 11 is driven to rotate synchronously, and the kinetic energy is transmitted to the sprocket 28 through the chain 29, which drives the sprocket 28 to rotate, thereby causing the stirring rod 27 to rotate and stir the paint in the paint box 4. This not only prevents the paint from solidifying easily in a static state, but also makes the paint more uniform and improves the subsequent coating quality.

[0043] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A coating apparatus for release paper, comprising a frame (1), characterized in that: The frame (1) is equipped with a winding and unwinding mechanism. The top of the frame (1) is fixedly connected to a discharge hollow pipe (2). The bottom of the discharge hollow pipe (2) is fixedly connected to several nozzles (3). The top of the discharge hollow pipe (2) is equipped with two sets of sealing mechanisms. The frame (1) is equipped with a coating mechanism. The top of the frame (1) is fixedly connected to a paint tank (4). The paint tank (4) is equipped with a stirring mechanism. The top of the paint tank (4) is equipped with a booster pump (5). Two symmetrically arranged inclined guide plates (6) are fixedly connected to the inner wall of the frame (1) and below the discharge hollow pipe (2).

2. The coating apparatus for release paper according to claim 1, characterized in that: The unwinding and winding mechanism includes a drive motor (7), an unwinding roller (8), and a driven roller (9). The drive motor (7) is fixedly installed on one side of the frame (1). The output end of the drive motor (7) is fixedly connected to a rotating shaft (10). A sprocket (11) is sleeved on the outer surface of the rotating shaft (10). The other end of the rotating shaft (10) is fixedly connected to a winding roller (12). The unwinding roller (8) and the driven roller (9) are respectively rotatably installed between the front and back sides of the inner wall of the frame (1).

3. The coating apparatus for release paper according to claim 1, characterized in that: The sealing mechanism includes a second rotating shaft (13), a first support block (14), and a threaded rod (15). The second rotating shaft (13) is rotatably mounted on the top of the discharge hollow pipe (2). A bevel gear (16) is sleeved on the outer surface of the second rotating shaft (13). The first support block (14) is fixedly mounted on the top of the discharge hollow pipe (2). A limit rod (17) is fixedly connected to one side of the first support block (14), and the other end of the limit rod (17) is fixedly connected to the second support block (18). One end of the threaded rod (15) rotates... The threaded rod (15) is mounted on one side of the support block 2 (18) and moves through the support block 1 (14). The end of the threaded rod (15) near the paint box (4) is fixedly connected to the bevel gear 2 (23). The outer surface of the threaded rod (15) is threadedly connected to the moving block (19), and the moving block (19) is movably sleeved on the outer surface of the limiting rod (17). The bottom of the moving block (19) is fixedly connected to the U-shaped push rod (20), and the other end of the U-shaped push rod (20) is fixedly connected to the piston (21) and the triangular block (22).

4. A coating apparatus for release paper according to claim 3, characterized in that: The first bevel gear (16) and the second bevel gear (23) mesh with each other. The top of the second rotating shaft (13) is fixedly connected to a rotating handle (24). The piston (21) is interference-fitted with the discharge hollow tube (2). The triangular block (22) abuts against the outer surface of the inclined guide plate (6).

5. A coating apparatus for release paper according to claim 1, characterized in that: The coating mechanism includes a second drive motor (25) fixedly installed on one side of the frame (1), and the output end of the second drive motor (25) is fixedly connected to a paint roller (26).

6. A coating apparatus for release paper according to claim 1, characterized in that: The stirring mechanism includes a stirring rod (27) rotatably mounted on the paint tank (4), and a sprocket (28) is fitted at one end of the stirring rod (27).

7. A coating apparatus for release paper according to claim 6, characterized in that: A chain (29) is connected between the outer surfaces of the second sprocket (28) and the first sprocket (11).

8. A coating apparatus for release paper according to claim 1, characterized in that: The top of the paint tank (4) is fixedly connected to the injection port (30), and a connecting pipe (31) is fixedly connected between the paint tank (4) and the discharge hollow pipe (2).

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