Coating structure of a coating machine

By using a combination of electric slide rails and scraper racks to remove residual paint from inside the coating machine, the problem of residual paint pollution in the coating machine is solved, thereby improving the coating effect and achieving efficient resource utilization.

CN224271816UActive Publication Date: 2026-05-26ZHEJIANG HAICHAO PACKAGING TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG HAICHAO PACKAGING TECHNOLOGY CO LTD
Filing Date
2025-06-19
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

After the coating machine finishes coating, some coating may remain on the bottom surface of the conveying device, causing contamination of subsequent materials and reducing the coating effect.

Method used

It adopts a combination structure of electric slide rail, scraper frame, scraper strip and removal strip, together with liquid storage box and collection box, to achieve scraping and collection of residual paint. Combined with spring and limit device, it ensures the stability and adhesion of fixed roller.

Benefits of technology

It effectively prevents coating from contaminating subsequent materials, improves coating effect, reduces resource waste by reusing coating, and enhances the stability of the fixed roller and the uniformity of coating.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of coating machines and discloses a coating structure for a coating machine, including two placement slots, which are respectively opened on the front and rear sides of a worktable. A coating module is fixed on the top surface of the worktable. Electric slide rails are fixed on both the left and right sides of the inner wall of the worktable. A connecting frame is fixed on the slider of the electric slide rail. A sliding column is fixed on the inner wall of the connecting frame. A first spring is wound around the outer wall of the sliding column. A scraper is slidably arranged between the two connecting frames. The inner wall of the scraper has a liquid inlet hole. In this utility model, through the cooperation of the electric slide rails, scraper, scraper strip, and removal strip, the residual coating after coating on the bottom surface of the worktable can be scraped off, allowing the scraped material to be centrally processed, ensuring the cleanliness of the bottom surface of the worktable, effectively preventing the residual coating on the bottom surface of the worktable from contaminating subsequent materials, thereby improving the coating effect of the materials.
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Description

Technical Field

[0001] This utility model relates to the technical field of coating machines, specifically to a coating structure for a coating machine. Background Technology

[0002] A coating machine is a widely used piece of equipment in industrial production. Its main function is to uniformly coat the surface of different materials with paint, adhesive, or other viscous substances. By adjusting the parameters of the coating machine, the thickness, uniformity, and speed of the coating can be controlled to meet the needs of different products. Coating machines are widely used in industries such as paper, plastics, metal, and wood, and common application areas include printing, packaging, building materials, and furniture manufacturing. After coating the material, some paint may remain on the inner bottom surface of the coating machine; therefore, it is necessary to remove the residual paint to prevent contamination of subsequent coating materials.

[0003] Chinese patent with publication number CN222753611U discloses a coating structure for a coating machine. The key technical features are: a conveyor, an adhesive application component for coatings fixedly installed on the upper surface of the conveyor, a vertical plate fixedly installed on the upper surface of the conveyor, a rectangular groove opened on one side of the vertical plate, an electric telescopic rod fixedly installed on the top of the rectangular groove, a side plate fixedly installed at the output end of the electric telescopic rod, a scraper fixedly installed on one side of the side plate, and a collecting plate fixedly installed on one side of the scraper.

[0004] In the above scheme, the coating is scraped off by scrapers and side scrapers to ensure the uniformity of the coating during the coating process. However, this method has the following disadvantages: after the material is coated, some coating may remain on the bottom of the conveying device, which may cause the residual coating to contaminate the subsequent material and reduce the coating effect. Utility Model Content

[0005] The purpose of this invention is to provide a coating structure for a coating machine to solve the problem that after the material is coated, some coating material is easily left on the bottom surface inside the conveying device, which can easily contaminate subsequent materials and reduce the coating effect.

[0006] To achieve the above-mentioned utility model objectives, the present utility model adopts the following technical solution: a coating structure for a coating machine, comprising two placement slots, the two placement slots being respectively opened on the front and rear sides of a workbench, a coating module being fixed on the top surface of the workbench, electric slide rails being fixed on both the left and right sides of the inner wall of the workbench, a connecting frame being fixed on the slider of the electric slide rail, a sliding column being fixed on the inner wall of the connecting frame, a first spring being wound around the outer wall of the sliding column, a scraper being slidably arranged between the two connecting frames, a liquid inlet hole being opened on the inner wall of the scraper, a liquid storage box being snapped onto the scraper, a scraper strip being fixed on the bottom surface of the scraper, two through holes being opened on the inner bottom surface of the workbench, the through holes communicating with the placement slots, a material removal strip being fixed on the inner wall of the through holes, a collection box being placed on the inner wall of the placement slots where the material removal strip connects with the scraper strip.

[0007] Preferably, the coating module includes a mounting frame, which is fixed to the top surface of the workbench. A cylinder is fixed to the top surface of the mounting frame. A housing is fixed to one end of the cylinder's telescopic rod. A feed inlet is provided on the top surface of the housing. A coating roller is rotatably mounted on the inner wall of the housing. A storage cavity is provided on the top surface inside the housing. The feed inlet is connected to the storage cavity. A spray nozzle is fixed to the inner wall of the storage cavity.

[0008] Preferably, two cross-shaped grooves are provided on the front and rear sides of the worktable. Several cross-shaped blocks are slidably connected to the inner wall of the cross-shaped grooves. A receiving groove is provided on the bottom surface of the cross-shaped blocks. A second spring is fixed on the inner top surface of the receiving groove. A connecting column is inserted into the inner wall of the receiving groove. The bottom end of the second spring is fixed to the top end of the connecting column. A fixing roller is fixed on the bottom end of the connecting column.

[0009] Preferably, a connecting plate is fixed to the top surface of the cross-shaped block, and a plurality of positioning grooves are provided on the top surface of the workbench. Positioning pins are inserted into the connecting plate and are inserted into the positioning grooves.

[0010] Preferably, the top surface of the housing is fixed with two limiting posts, and the top surface of the mounting bracket is provided with two limiting holes, and the limiting posts are slidably inserted into the limiting holes.

[0011] Preferably, the inner wall of the scraper is inclined.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. Through the cooperation of electric slide rails, scraper racks, scraper strips, and removal strips, residual paint on the bottom surface of the workbench after coating can be scraped off. This allows for centralized processing of the scraped material, ensuring the cleanliness of the workbench's interior and effectively preventing residual paint from contaminating subsequent materials, thus improving the coating effect. 2. Through the cooperation of a storage box and a collection box, excess paint scraped off by the scraper rack and scraper strips can be collected, allowing operators to reuse the collected paint, effectively avoiding resource waste and improving resource utilization efficiency.

[0014] Second, the cooperation between the second spring and the connecting column allows the fixed roller to flexibly and adaptively adjust according to the thickness of the coating material. This ensures the fixed roller maintains a tight fit with the coating material under the elasticity of the second spring, guaranteeing the smoothness of the coating material surface. The locating pin limits and fixes the connecting plate, making the fixed roller more stable during operation and effectively preventing positional deviation under stress, thus ensuring the working efficiency of the fixed roller. The cooperation between the limiting column and the limiting hole further stabilizes the housing and coating roller during vertical movement, allowing the housing to move up and down along a predetermined trajectory, effectively preventing wobbling during vertical movement and improving the stability of both the housing and the coating roller. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of an embodiment.

[0016] Figure 2 This is a breakdown diagram of an embodiment.

[0017] Figure 3 This is a schematic diagram showing the disassembled mounting bracket and limiting post in an embodiment.

[0018] Figure 4 For the example Figure 2 Enlarged diagram of point A in the middle.

[0019] Figure 5 For the example Figure 2 Enlarged diagram of point B in the middle.

[0020] In the diagram: 1. Placement slot; 2. Workbench; 3. Coating module; 301. Mounting bracket; 302. Cylinder; 303. Housing; 304. Coating roller; 305. Storage chamber; 306. Spray head; 4. Electric slide rail; 5. Connecting frame; 6. Sliding column; 7. First spring; 8. Scraper rack; 9. Liquid inlet; 10. Liquid storage box; 11. Scraper strip; 12. Through hole; 13. Material removal strip; 14. Collection box; 15. Cross-shaped groove; 16. Cross-shaped block; 17. Receiving slot; 18. Second spring; 19. Connecting column; 20. Fixed roller; 21. Connecting plate; 22. Positioning groove; 23. Positioning pin; 24. Limiting column; 25. Limiting hole. Detailed Implementation

[0021] The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0022] like Figures 1-5 As shown, a coating structure of a coating machine includes two placement slots 1, which are respectively located on the front and rear sides of a worktable 2. A coating module 3 is fixed to the top surface of the worktable 2. Electric slide rails 4 are fixed to the left and right sides of the inner wall of the worktable 2. A connecting frame 5 is fixed to the slider of the electric slide rail 4. A sliding column 6 is fixed to the inner wall of the connecting frame 5. A first spring 7 is wound around the outer wall of the sliding column 6. A scraper 8 is slidably arranged between the two connecting frames 5. The two ends of the scraper 8 are made of rubber. A liquid inlet hole 9 is opened on the inner wall of the scraper 8. A liquid storage box 10 is snapped onto the scraper 8. A scraper strip 11 is fixed to the bottom surface of the scraper 8. Two through holes 12 are opened on the inner bottom surface of the worktable 2. The inner wall of the through hole 12 is coated with an anti-stick coating. The through hole 12 is connected to the placement groove 1. A material removal strip 13 is fixed to the inner wall of the through hole 12. The material removal strip 13 is connected to the scraper strip 11. A collection box 14 is placed on the inner wall of the placement groove 1. The coating module 3 includes a mounting frame 301. The mounting frame 301 is fixed to the top surface of the workbench 2. A cylinder 302 is fixed to the top surface of the mounting frame 301. A housing 303 is fixed to one end of the telescopic rod of the cylinder 302. A feed inlet is opened on the top surface of the housing 303. A coating roller 304 is rotatably arranged on the inner wall of the housing 303. A storage cavity 305 is opened on the inner top surface of the housing 303. The feed inlet is connected to the storage cavity 305. A spray head 306 is fixed to the inner wall of the storage cavity 305.

[0023] In use, when coating a specific material, the material to be coated is first passed through the lower surface of the fixed roller 20 and the scraper 8 in a left-to-right direction, ensuring that the scraper 11 makes effective contact with the material surface. Then, the cylinder 302 is activated, and its power output drives the housing 303 and the coating roller 304 to move downwards in a vertical direction. When the coating roller 304 reaches good contact with the material surface, the material collection device and the spray head 306 are activated simultaneously. At this time, the material collection device begins to move the material from left to right on the bottom surface inside the worktable 2. The coating roller moves at a constant speed in the direction of the material. At the same time, the spray head 306 accurately sprays the pre-stored coating in the storage chamber 305 onto the surface of the coating roller 304. With the rotation of the coating roller 304 and the continuous movement of the material, the coating is evenly coated on the surface of the material. During this process, the scraper 8, with the specific function of the scraper strip 11, performs fine spreading of the coating on the surface of the material, effectively ensuring the uniformity of the coating distribution. The excess coating flows smoothly into the liquid storage box 10 through the liquid inlet 9, which facilitates the secondary recycling of the coating and improves the resource utilization rate.

[0024] After the material coating process is completed, the scraper 11, under the elasticity of the first spring 7, makes close contact with the bottom surface of the worktable 2. Then, the fixed roller 20 is properly removed from the worktable 2, and the electric slide rail 4 is activated. The electric slide rail 4 begins to drive the connecting frame 5 and the scraper frame 8 to reciprocate on the bottom surface of the worktable 2. During this movement, the residual paint on the bottom surface of the worktable 2 gradually accumulates under the action of the scraper 11. With the continuous reciprocating motion of the scraper 11, it steadily pushes the accumulated residual paint to the through hole 12. At the same time, the scraper 13 performs its scraping function, effectively cleaning the paint adhering to the surface of the scraper 11, allowing the paint to flow smoothly into the collection box 14 under gravity and guidance, achieving centralized collection and treatment of residual paint.

[0025] The electric slide rail 4, scraper 8, scraper strip 11, and removal strip 13 work together to scrape away residual paint from the bottom surface of the workbench 2 after coating. This allows for centralized processing of the scraped material, ensuring the cleanliness of the bottom surface of the workbench 2 and effectively preventing residual paint from contaminating subsequent materials, thereby improving the coating effect. The liquid storage box 10 and collection box 14 work together to collect excess paint scraped by the scraper 8 and scraper strip 11, allowing operators to reuse the collected paint, effectively avoiding resource waste and improving resource utilization efficiency.

[0026] like Figure 1 , Figure 2 and Figure 4As shown, two cross-shaped grooves 15 are opened on the front and rear sides of the worktable 2. Several cross-shaped blocks 16 are slidably connected to the inner wall of the cross-shaped grooves 15. The bottom surface of the cross-shaped blocks 16 is provided with a receiving groove 17. The top surface of the receiving groove 17 is fixed with a second spring 18. A connecting post 19 is inserted into the inner wall of the receiving groove 17. The bottom end of the second spring 18 is fixed to the top end of the connecting post 19. A fixing roller 20 is fixed to the bottom end of the connecting post 19. A connecting plate 21 is fixed to the top surface of the cross-shaped blocks 16. Several positioning grooves 22 are opened on the top surface of the worktable 2. Positioning pins 23 are inserted into the connecting plate 21 and are inserted into the positioning grooves 22.

[0027] During use, the cooperation between the second spring 18 and the connecting column 19 allows the fixed roller 20 to flexibly and adaptively adjust according to the thickness of the coating material. This ensures that the fixed roller 20 fits tightly against the coating material under the elasticity of the second spring 18, thus guaranteeing the smoothness of the coating material surface. The positioning pin 23 limits and fixes the connecting plate 21, making the fixed roller 20 more stable during operation and effectively preventing positional deviation under force, thereby ensuring the working efficiency of the fixed roller 20.

[0028] like Figures 1-3 As shown, two limiting posts 24 are fixed on the top surface of the housing 303, and two limiting holes 25 are opened on the top surface of the mounting bracket 301. The limiting posts 24 are slidably inserted into the limiting holes 25, and the inner wall of the scraper 8 is inclined.

[0029] During use, the cooperation between the limiting post 24 and the limiting hole 25 makes the housing 303 and the coating roller 304 more stable when moving up and down, so that the housing 303 can move up and down according to the predetermined trajectory, effectively preventing the housing 303 from shaking when moving up and down, thereby improving the stability of the housing 303 and the coating roller 304.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A coating structure for a coating machine, comprising two placement slots (1), the two placement slots (1) being respectively located on the front and rear sides of a worktable (2), characterized in that, A coating module (3) is fixed to the top surface of the workbench (2). Electric slide rails (4) are fixed to both the left and right sides of the inner wall of the workbench (2). A connecting frame (5) is fixed to the slider of the electric slide rail (4). A sliding column (6) is fixed to the inner wall of the connecting frame (5). A first spring (7) is wound around the outer wall of the sliding column (6). A scraper (8) is slidably arranged between the two connecting frames (5). An inlet is opened on the inner wall of the scraper (8). Liquid hole (9), liquid storage box (10) is snapped on the scraper (8), scraper strip (11) is fixed on the bottom surface of the scraper (8), two through holes (12) are opened on the inner bottom surface of the workbench (2), the through holes (12) are connected to the placement groove (1), the inner wall of the through holes (12) is fixed with a material removal strip (13), the material removal strip (13) is connected to the scraper strip (11), and a collection box (14) is placed on the inner wall of the placement groove (1).

2. The coating structure of a coating machine according to claim 1, characterized in that: The coating module (3) includes a mounting frame (301), which is fixed to the top surface of the workbench (2). A cylinder (302) is fixed to the top surface of the mounting frame (301). A housing (303) is fixed to one end of the telescopic rod of the cylinder (302). A feed inlet is provided on the top surface of the housing (303). A coating roller (304) is rotatably provided on the inner wall of the housing (303). A storage cavity (305) is provided on the top surface inside the housing (303). The feed inlet is connected to the storage cavity (305). A spray nozzle (306) is fixed to the inner wall of the storage cavity (305).

3. The coating structure of a coating machine according to claim 2, characterized in that: The workbench (2) has two cross-shaped grooves (15) on its front and rear sides. Several cross-shaped blocks (16) are slidably connected to the inner wall of the cross-shaped grooves (15). The bottom surface of the cross-shaped blocks (16) is provided with a receiving groove (17). A second spring (18) is fixed to the top surface inside the receiving groove (17). A connecting column (19) is inserted into the inner wall of the receiving groove (17). The bottom end of the second spring (18) is fixed to the top end of the connecting column (19). A fixing roller (20) is fixed to the bottom end of the connecting column (19).

4. The coating structure of a coating machine according to claim 3, characterized in that: The top surface of the cross-shaped block (16) is fixed with a connecting plate (21), and the top surface of the workbench (2) is provided with several positioning grooves (22). A positioning pin (23) is inserted into the connecting plate (21), and the positioning pin (23) is inserted into the positioning groove (22).

5. The coating structure of a coating machine according to claim 2, characterized in that: The top surface of the housing (303) is fixed with two limiting posts (24), and the top surface of the mounting bracket (301) is provided with two limiting holes (25). The limiting posts (24) are slidably inserted into the limiting holes (25).

6. The coating structure of a coating machine according to claim 1, characterized in that: The inner wall of the scraper (8) is inclined.