Scratch-resistant and wear-resistant color box surface treatment device

Abstract

The utility model relates to a scratch-resistant wear-resistant color box surface treatment device which comprises a long box body, a conveying belt and a liquid storage tank, the conveying belt penetrates through the long box body in the left-right direction, a four-face spraying assembly, a bottom face spraying assembly and a drying assembly are sequentially arranged in the long box body in the conveying direction of the conveying belt, and the liquid storage tank is arranged in the long box body and below the conveying belt. An upper opening of the liquid storage tank is located below the four-face spraying assembly and the bottom face spraying assembly, the bottom of the liquid storage tank is communicated with an inlet of the four-face spraying assembly through the liquid pumping assembly A, and the bottom of the liquid storage tank is communicated with an inlet of the bottom face spraying assembly through the liquid pumping assembly B. A to-be-treated paper box is a cuboid with the top open, and the paper box is inversely buckled on the upper surface of the conveying belt. Limiting protrusions and liquid leakage holes are evenly formed in the belt face of the conveying belt, the limiting protrusions abut against the inner edge of the opening of the paper box, and the liquid leakage holes are used for allowing the material liquid to penetrate through the belt face of the conveying belt to fall into the liquid storage tank. The device disclosed by the utility model has the advantages of good treatment effect and high feed liquid utilization rate.

Description

Technical Field

[0001] This utility model relates to the field of paper box technology, specifically to a surface treatment device for scratch-resistant and wear-resistant color boxes. Background Technology

[0002] The food and pharmaceutical industries often use corrugated cardboard boxes to package their products. For aesthetic and promotional purposes, colored patterns are often added to the exterior of the boxes. If these colored patterns are not properly protected, they are easily worn down during handling and storage, damaging their clarity and integrity. Utility Model Content

[0003] The purpose of this invention is to provide a scratch-resistant and wear-resistant color box surface treatment device, which has the advantages of good treatment effect and high material utilization rate.

[0004] The technical solution of this utility model is as follows:

[0005] A scratch-resistant and wear-resistant color box surface treatment device includes a long box, a conveyor belt, and a liquid storage tank. The conveyor belt passes through the long box in a left-right direction. Inside the long box, along the conveying direction of the conveyor belt, there are sequentially arranged a four-sided spraying assembly, a bottom spraying assembly, and a drying assembly. Inside the long box, below the conveyor belt, is a liquid storage tank. The upper opening of the liquid storage tank is below the four-sided spraying assembly and the bottom spraying assembly. The bottom of the liquid storage tank is connected to the inlet of the four-sided spraying assembly via a liquid extraction assembly A, and the bottom of the liquid storage tank is connected to the inlet of the bottom spraying assembly via a liquid extraction assembly B. The cardboard box to be treated is an open-top cuboid. The cardboard box is inverted on the upper surface of the conveyor belt. The conveyor belt surface is evenly provided with limiting protrusions and leakage holes. The limiting protrusions abut against the inner edge of the opening of the cardboard box, and the leakage holes are used to allow the liquid to pass through the surface of the conveyor belt and fall into the liquid storage tank.

[0006] Preferably, the four-sided spraying assembly includes an infusion frame A, a motor A, a threaded rod A, a threaded sleeve A, a slide rail, and a chute. The infusion frame A is located above the conveyor belt within the long box. The infusion frame A is rectangular in shape and has infusion channels along its internal shape. Nozzles communicating with the infusion channels are evenly distributed along the inner edge of the infusion frame A. Telescopic hoses A communicating with the infusion channels are located at the four corners of the outer edge of the infusion frame A. The telescopic hoses A are connected to the outlet of the suction assembly A. Each of the front and rear inner walls of the long box has a vertically oriented slide rail. Each of the front and rear outer walls of the infusion frame A has a chute that is slidably connected to the corresponding slide rail. Each of the front and rear sides of the long box is rotatably connected to a vertically oriented threaded rod A. A motor A with a drive rod coaxially connected to the upper end of the threaded rod A is located at the top of the long box. Each of the front and rear outer walls of the infusion frame A has a threaded sleeve A that is threadedly connected to the corresponding threaded rod A.

[0007] Preferably, the bottom coating assembly includes a mounting frame, an infusion frame B, a connecting rod, a telescopic rod, a limiting rod, a threaded rod B, a threaded sleeve B, and a motor B. The mounting frame is located above the conveyor belt inside the long box, and the infusion frame B is located below the mounting frame. The infusion frame B consists of two long tubes running horizontally in the left-right direction and several horizontal tubes running front-back in the front-back direction between the long tubes. Infusion channels are provided along the length of the long tubes and horizontal tubes, and these channels are interconnected. Nozzles communicating with the infusion channels are evenly distributed along the length of the bottom of the horizontal tubes. A nozzle communicating with the infusion channels is located at the middle of the outer side of the long tube. A telescopic hose B is connected to the outlet of the liquid extraction assembly B. A pair of threaded rods B, symmetrical in the left-right direction and front-back direction, and a motor B, with a drive rod coaxially connected to the end of the threaded rods B, are rotatably connected to the mounting bracket. The infusion frame B is provided with a threaded sleeve B that is threadedly connected to the corresponding threaded rod B. The top left and right sides of the infusion frame B are each provided with a connecting rod and a limiting rod in the vertical direction. The top of the long box is provided with a telescopic rod and a limiting port in the vertical direction. The movable part of the telescopic rod passes downward into the long box and is connected to the connecting rod. The limiting rod and the limiting port are slidably connected.

[0008] Preferably, the drying assembly includes a mounting plate and ultraviolet drying lamps. The front and rear inner walls and the top wall of the long box are each provided with a mounting plate, and the ultraviolet drying lamps are evenly arranged on the surface of the mounting plate facing the conveyor belt.

[0009] Preferably, the liquid extraction assembly A includes a liquid extraction pump A and a liquid delivery pipeline A. The front and rear sides of the long box are each provided with a liquid extraction pump A and a liquid delivery pipeline A. The inlet of the liquid extraction pump A is connected to the bottom of the liquid storage tank, the outlet of the liquid extraction pump A is connected to the lower end port of the liquid delivery pipeline A, and the upper end port of the liquid delivery pipeline A passes through the long box and is connected to the inlet of the four-sided spraying assembly.

[0010] Preferably, the liquid extraction component B includes a liquid extraction pump B and a liquid delivery pipe B. The front and rear sides of the long box are respectively provided with a liquid extraction pump B and a liquid delivery pipe B. The inlet of the liquid extraction pump B is connected to the bottom of the liquid storage tank, the outlet of the liquid extraction pump B is connected to the lower end port of the liquid delivery pipe B, and the upper end port of the liquid delivery pipe B enters the long box and is connected to the inlet of the bottom coating component.

[0011] Preferably, a filter screen is provided at the upper opening of the liquid storage tank.

[0012] Preferably, the front of the elongated box is provided with a liquid replenishment port and a liquid drain port, each leading to the top and bottom of the liquid storage tank.

[0013] Preferably, the drying assembly has an inclined surface located below the conveyor belt, which slopes downward toward the upper opening of the liquid storage tank.

[0014] The beneficial technical effects of this utility model are as follows:

[0015] 1. The coating liquid is sprayed onto the surface of the cardboard box through the four-sided spraying component and the bottom spraying component. Then, the drying component allows the coating on the surface of the cardboard box to form a stable coating, which improves the scratch resistance and wear resistance of the cardboard box and has a good treatment effect.

[0016] 2. Excess liquid that does not adhere to the cardboard box can be drained through the leakage hole and conveyor belt back into the liquid storage tank. Then, under the action of liquid extraction component A and liquid extraction component B, it is sent to the four-sided spraying component and the bottom spraying component respectively to be sprayed onto the surface of the cardboard box, thereby improving the utilization rate of liquid.

[0017] 3. Limiting protrusions on the conveyor belt surface abut against the inner edge of the opening of the cardboard box, thereby locking the cardboard box in place, reducing the risk of the cardboard box sliding during processing, and improving processing efficiency. Attached Figure Description

[0018] The technical solution of this utility model will be further described below with reference to the accompanying drawings.

[0019] Appendix Figure 1 This is the front view of the present invention.

[0020] Appendix Figure 2 This is a front-view cross-sectional view of the present invention.

[0021] Appendix Figure 3 This is a top-view cross-sectional view of the long box-shaped structure.

[0022] In the diagram: 1-Long box, 2-Conveyor belt, 3-Liquid storage tank, 4-Four-sided spraying assembly, 5-Bottom spraying assembly, 6-Drying assembly, 7-Liquid extraction assembly A, 8-Liquid extraction assembly B, 9-Limiting protrusion, 10-Leakage hole, 11-Infusion frame A, 12-Motor A, 13-Threaded rod A, 14-Threaded sleeve A, 15-Slide rail, 16-Slide groove, 17-Spray head, 18-Telescopic hose A, 19-Safety assembly Mounting frame, 20-Infusion frame B, 21-Connecting rod, 22-Limiting rod, 23-Threaded rod B, 24-Threaded sleeve B, 25-Motor B, 26-Mounting plate, 27-UV drying lamp, 28-Liquid pump A, 29-Infusion pipeline A, 30-Liquid pump B, 31-Infusion pipeline B, 32-Filter screen, 33-Replenishment port, 34-Drain port, 35-Sloping surface, 36-Paper box, 37-Telescopic rod. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0024] Example:

[0025] like Figures 1 to 3As shown, this embodiment provides a scratch-resistant and wear-resistant color box surface treatment device, including a long box 1, a conveyor belt 2, and a liquid storage tank 3. The conveyor belt 2 passes through the long box 1 in a left-right direction. Inside the long box 1, along the conveying direction of the conveyor belt 2, a four-sided spraying assembly 4, a bottom spraying assembly 5, and a drying assembly 6 are arranged sequentially. Inside the long box 1, below the conveyor belt 2, is a liquid storage tank 3. The upper opening of the liquid storage tank 3 is below the four-sided spraying assembly 4 and the bottom spraying assembly 5. The bottom of the liquid extraction component A7 is connected to the inlet of the four-sided spraying component 4, and the bottom of the liquid storage tank 3 is connected to the inlet of the bottom spraying component 5 via the liquid extraction component B8. The paper box 36 to be processed is a cuboid with an open top. The paper box 36 is upside down on the upper surface of the conveyor belt 2. The conveyor belt 2 is evenly provided with limiting protrusions 9 and leakage holes 10. The limiting protrusions 9 abut against the inner edge of the opening of the paper box 36, and the leakage holes 10 are used to allow the liquid to pass through the surface of the conveyor belt 2 and fall into the liquid storage tank 3.

[0026] The coating liquid is sprayed onto the surface of the cardboard box 36 by the four-sided spraying assembly 4 and the bottom spraying assembly 5. Then, the drying assembly 6 forms a stable coating on the surface of the cardboard box 36, improving its scratch resistance and abrasion resistance, resulting in a good treatment effect. Excess coating liquid that does not adhere to the cardboard box 36 can drain through the drain hole 10 and fall back into the liquid storage tank 3 through the conveyor belt 2. Then, under the action of the liquid extraction assembly A7 and the liquid extraction assembly B8, it is sent to the four-sided spraying assembly 4 and the bottom spraying assembly 5 respectively to be sprayed onto the surface of the cardboard box 36, improving the utilization rate of the coating liquid. The limiting protrusion 9 on the surface of the conveyor belt 2 abuts against the inner edge of the opening of the cardboard box 36, thereby locking the position of the cardboard box 36, reducing the risk of the cardboard box 36 sliding during processing, and improving the processing effect.

[0027] Furthermore, the four-sided spraying assembly 4 includes an infusion frame A11, a motor A12, a threaded rod A13, a threaded sleeve A14, a slide rail 15, and a chute 16. The infusion frame A11 is located above the conveyor belt 2 inside the long box 1. The infusion frame A11 is rectangular in shape and has infusion channels along its internal shape. Nozzles 17 communicating with the infusion channels are evenly distributed along the inner edge of the infusion frame A11. Telescopic hoses A18 communicating with the infusion channels are located at the four corners of the outer edge of the infusion frame A11. The telescopic hoses A18 connect to the infusion channels. The outlet of component A7 is connected. The front and rear inner walls of the long box 1 are each provided with a vertical slide rail 15. The front and rear outer walls of the infusion frame A11 are each provided with a slide groove 16 that is slidably connected to the corresponding slide rail 15. The front and rear sides of the long box 1 are each rotatably connected with a vertical threaded rod A13. The top of the long box 1 is provided with a motor A12 that is coaxially connected to the upper end of the threaded rod A13. The front and rear outer walls of the infusion frame A11 are each provided with a threaded sleeve A14 that is threadedly connected to the corresponding threaded rod A13.

[0028] The height of the infusion frame A11 is controlled by the combined use of motor A12, threaded rod A13, threaded sleeve A14, slide rail 15, and slide groove 16. The slide rail 15 and slide groove 16 restrict the movement of the infusion frame A11 to the vertical direction. When motor A12 drives threaded rod A13 to rotate, the infusion frame A11 moves vertically under the influence of threaded sleeve A14. Each of the four corners of the outer edge of the infusion frame A11 is equipped with a telescopic hose A18 to ensure uniform feeding within the infusion frame A11 and reduce differences in spraying effect between the nozzles 17 at different locations. When spraying the coating liquid, after the paper box 36 moves below the infusion frame A11 and pauses, the liquid extraction component A7 delivers the liquid into the infusion chamber of the infusion frame A11 through the telescopic hose A18. Simultaneously, the infusion frame A11 moves up and down on the outside of the paper box 36, ensuring uniform spraying on all four sides of the paper box 36.

[0029] Furthermore, the bottom coating assembly 5 includes a mounting frame 19, an infusion frame B20, a connecting rod 21, a telescopic rod 37, a limiting rod 22, a threaded rod B23, a threaded sleeve B24, and a motor B25. The mounting frame 19 is located above the conveyor belt 2 inside the long box 1, and the infusion frame B20 is located below the mounting frame 19. The infusion frame B20 consists of two long tubes running horizontally in the left-right direction and several horizontal tubes running front-back in the direction between the long tubes. Infusion channels are provided along the length of the long tubes and horizontal tubes, and each infusion channel is interconnected. Nozzles 17 communicating with the infusion channels are evenly distributed along the length of the bottom of the horizontal tubes. A nozzle 17 communicating with the infusion channels is located in the middle of the outer side of the long tube. The telescopic hose B is connected to the outlet of the liquid extraction assembly B8. A pair of threaded rods B23, which are symmetrical in the left-right direction and front-back direction, and a motor B25, which is coaxially connected to the end of the threaded rods B23, are rotatably connected to the mounting bracket 19. The infusion frame B20 is provided with a threaded sleeve B24 that is threaded to the corresponding threaded rod B23. The top left and right sides of the infusion frame B20 are each provided with a vertical connecting rod 21 and a limiting rod 22. The top of the long box 1 is provided with a vertical telescopic rod 37 and a limiting port. The movable rod of the telescopic rod 37 passes downward into the long box 1 and is connected to the connecting rod 21. The limiting rod 22 is slidably connected to the limiting port.

[0030] The telescopic rod 37, connecting rod 21, and mounting bracket 19 work together to control the height of the infusion frame B20 located on the mounting bracket 19. The limiting rod 22 and limiting port enhance the stability of the infusion frame B20's lifting and lowering movements. The motor B25, threaded rod B23, and threaded sleeve B24 work together to control the lateral position of the infusion frame B20 connected to the threaded sleeve B24. When the motor B25 drives the threaded rod B23 to rotate, the threaded rod B23 drives the threaded sleeve B24 to move left and right, thereby causing the infusion frame B20 connected to the threaded sleeve B24 to move horizontally. Telescopic hoses B are located at the center of the front and rear sides of the outer edge of the infusion frame B20 to ensure as uniform a feeding process as possible within the infusion frame B20, reducing differences in the spraying effect between the nozzles 17 at various points within the infusion frame B20. When the coating liquid is sprayed, when the cardboard box 36 moves below the infusion frame B20 and pauses, the infusion frame B20 first descends to a height suitable for spraying the bottom surface of the cardboard box 36. Then, the liquid pumping component B8 delivers the liquid to the infusion chamber of the infusion frame B20 through the telescopic hose B. At the same time, the infusion frame B20 moves horizontally in the left and right directions above the cardboard box 36 to complete the uniform spraying of the bottom surface of the cardboard box 36.

[0031] Furthermore, the drying assembly 6 includes a mounting plate 26 and ultraviolet drying lamps 27. The front and rear inner walls and the top wall of the long box 1 are each provided with a mounting plate 26, and the ultraviolet drying lamps 27 are evenly arranged on the surface of the mounting plate 26 facing the conveyor belt 2.

[0032] The ultraviolet drying lamp 27 dries the cardboard box 36 on the conveyor belt 2 from multiple directions, forming a stable coating on the surface of the cardboard box 36, resulting in uniform drying and good treatment effect.

[0033] Furthermore, the liquid extraction assembly A7 includes a liquid extraction pump A28 and a liquid delivery pipe A29. The front and rear sides of the long box 1 are each equipped with a liquid extraction pump A28 and a liquid delivery pipe A29. The inlet of the liquid extraction pump A28 is connected to the bottom of the liquid storage tank 3, and the outlet of the liquid extraction pump A28 is connected to the lower end port of the liquid delivery pipe A29. The upper end port of the liquid delivery pipe A29 passes through the long box 1 and is connected to the inlet of the four-sided spraying assembly 4.

[0034] The pump A28 provides the power for the movement of the liquid, and the delivery pipe A29 provides the path for the liquid to be delivered into the four-sided spraying assembly 4, so that the four-sided spraying assembly 4 can smoothly obtain the liquid required for the spraying operation.

[0035] Furthermore, the liquid extraction assembly B8 includes a liquid extraction pump B30 and a liquid delivery pipeline B31. The front and rear sides of the long box 1 are each equipped with a liquid extraction pump B30 and a liquid delivery pipeline B31. The inlet of the liquid extraction pump B30 is connected to the bottom of the liquid storage tank 3, and the outlet of the liquid extraction pump B30 is connected to the lower end port of the liquid delivery pipeline B31. The upper end port of the liquid delivery pipeline B31 passes into the long box 1 and is connected to the inlet of the bottom surface spraying assembly 5.

[0036] The pump B30 provides the power for the movement of the liquid, and the delivery pipe B31 provides the path for the liquid to be delivered into the bottom spraying assembly 5, so that the bottom spraying assembly 5 can smoothly obtain the liquid required for the spraying operation.

[0037] Furthermore, a filter screen 32 is provided at the upper opening of the liquid storage tank 3.

[0038] The filter screen 32 blocks any impurities that may be mixed in with the liquid material falling down, thus preventing these impurities from affecting the coating quality of the paper box 36.

[0039] Furthermore, the front of the long box 1 is provided with a liquid replenishment port 33 and a liquid drain port 34, which lead to the top and bottom of the liquid storage tank 3, respectively.

[0040] The replenishment port 33 and the drain port 34 are used to facilitate users to replenish the liquid or drain the liquid that has not met the quality standards after multiple cycles.

[0041] Furthermore, the drying assembly 6 is provided with an inclined surface 35 located below the conveyor belt 2, which slopes downward toward the upper opening of the liquid storage tank 3.

[0042] The inclined plane 35 guides the liquid dripping from the surface of the cardboard box 36 during the drying process back into the liquid storage tank 3, thereby improving the utilization rate of the liquid.

[0043] Working principle and usage process of this utility model:

[0044] The cardboard box 36 is placed upside down at the feeding end on the left side of the conveyor belt 2. The conveyor belt 2 moves the cardboard box 36, allowing it to stop sequentially at the four-sided spraying component 4, the bottom spraying component 5, and the drying component 6 to complete the spraying and drying operations. Finally, the processed cardboard box 36 is removed at the unloading end on the right side of the conveyor belt 2.

[0045] The above are merely specific application examples of this utility model and do not constitute any limitation on the scope of protection of this utility model. All technical solutions formed by equivalent transformations or equivalent substitutions fall within the scope of protection of this utility model.

Claims

1. A surface treatment device for scratch-resistant and wear-resistant color boxes, characterized in that: The device includes a long box, a conveyor belt, and a liquid storage tank. The conveyor belt passes through the long box in a left-right direction. Inside the long box, along the conveying direction of the conveyor belt, there are sequentially arranged a four-sided spraying assembly, a bottom spraying assembly, and a drying assembly. Inside the long box, below the conveyor belt, is a liquid storage tank. The upper opening of the liquid storage tank is below the four-sided spraying assembly and the bottom spraying assembly. The bottom of the liquid storage tank is connected to the inlet of the four-sided spraying assembly via a liquid extraction assembly A, and the bottom of the liquid storage tank is connected to the inlet of the bottom spraying assembly via a liquid extraction assembly B. The cardboard box to be processed is a cuboid with an open top. The cardboard box is inverted on the upper surface of the conveyor belt. The conveyor belt surface is evenly provided with limiting protrusions and leakage holes. The limiting protrusions abut against the inner edge of the opening of the cardboard box, and the leakage holes are used to allow the liquid to pass through the surface of the conveyor belt and fall into the liquid storage tank.

2. The anti-scratch and wear-resistant color box surface treatment device according to claim 1, characterized in that: The four-sided spraying assembly includes an infusion frame A, a motor A, a threaded rod A, a threaded sleeve A, a slide rail, and a chute. The infusion frame A is located above the conveyor belt within the long box. The infusion frame A is rectangular in shape and has infusion channels along its internal shape. Nozzles communicating with the infusion channels are evenly distributed along the inner edge of the infusion frame A. Telescopic hoses A communicating with the infusion channels are located at the four corners of the outer edge of the infusion frame A. The telescopic hoses A are connected to the outlet of the suction assembly A. Each of the front and rear inner walls of the long box has a vertically oriented slide rail. Each of the front and rear outer walls of the infusion frame A has a chute that is slidably connected to the corresponding slide rail. Each of the front and rear sides of the long box is rotatably connected to a vertically oriented threaded rod A. A motor A with a drive rod coaxially connected to the upper end of the threaded rod A is located at the top of the long box. Each of the front and rear outer walls of the infusion frame A has a threaded sleeve A that is threadedly connected to the corresponding threaded rod A.

3. The anti-scratch and wear-resistant color box surface treatment device according to claim 1, characterized in that: The bottom coating assembly includes a mounting frame, an infusion frame B, a connecting rod, a telescopic rod, a limiting rod, a threaded rod B, a threaded sleeve B, and a motor B. The mounting frame is located above the conveyor belt inside the long box, and the infusion frame B is located below the mounting frame. The infusion frame B consists of two long tubes running horizontally and several horizontal tubes running front-to-back between the long tubes. Infusion channels are provided along the length of the long tubes and horizontal tubes, and these channels are interconnected. Nozzles communicating with the infusion channels are evenly distributed along the length of the bottom of the horizontal tubes. A telescopic joint communicating with the infusion channels is located at the middle of the outer side of the long tubes. The flexible hose B is connected to the outlet of the liquid extraction assembly B. A pair of threaded rods B, symmetrical in the left-right direction and front-back direction, and a motor B, with a drive rod coaxially connected to the end of the threaded rods B, are rotatably connected on the mounting frame. The infusion frame B is provided with a threaded sleeve B that is threadedly connected to the corresponding threaded rods B. The top left and right sides of the infusion frame B are each provided with a connecting rod and a limiting rod in the vertical direction. The top of the long box is provided with a telescopic rod and a limiting port in the vertical direction. The movable part of the telescopic rod passes downward into the long box and is connected to the connecting rod. The limiting rod and the limiting port are slidably connected.

4. The anti-scratch and wear-resistant color box surface treatment device according to claim 1, characterized in that: The drying assembly includes a mounting plate and ultraviolet drying lamps. The front and rear inner walls and the top wall of the long box are each provided with a mounting plate, and ultraviolet drying lamps are evenly arranged on the surface of the mounting plate facing the conveyor belt.

5. The anti-scratch and wear-resistant color box surface treatment device according to claim 1, characterized in that: The liquid extraction assembly A includes a liquid extraction pump A and a liquid delivery pipeline A. The front and rear sides of the long box are each provided with a liquid extraction pump A and a liquid delivery pipeline A. The inlet of the liquid extraction pump A is connected to the bottom of the liquid storage tank, and the outlet of the liquid extraction pump A is connected to the lower end port of the liquid delivery pipeline A. The upper end port of the liquid delivery pipeline A passes through the long box and is connected to the inlet of the four-sided spraying assembly.

6. The anti-scratch and wear-resistant color box surface treatment device according to claim 1, characterized in that: The liquid extraction assembly B includes a liquid extraction pump B and a liquid delivery pipeline B. The front and rear sides of the long box are respectively provided with a liquid extraction pump B and a liquid delivery pipeline B. The inlet of the liquid extraction pump B is connected to the bottom of the liquid storage tank, and the outlet of the liquid extraction pump B is connected to the lower end port of the liquid delivery pipeline B. The upper end port of the liquid delivery pipeline B enters the long box and is connected to the inlet of the bottom coating assembly.

7. The anti-scratch and wear-resistant color box surface treatment device according to claim 1, characterized in that: A filter screen is installed at the top opening of the liquid storage tank.

8. The anti-scratch and wear-resistant color box surface treatment device according to claim 1, characterized in that: The front of the long box is provided with a liquid replenishment port and a liquid drain port, each leading to the top and bottom of the liquid storage tank.

9. The anti-scratch and wear-resistant color box surface treatment device according to claim 1, characterized in that: The drying assembly has an inclined surface located below the conveyor belt, which slopes downward toward the upper opening of the liquid storage tank.

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