A plate surface coating device for building wood board processing

Abstract

The utility model relates to the technical field of wood board processing, specifically relates to a board surface coating device for building wood board processing, including frame, be provided with coating box on the frame, the both ends of frame are provided with the board conveying mechanism for conveying board, one side of frame is provided with the coating material conveying mechanism for storing and conveying coating material to the coating box, the inside of coating box is divided into the input part for board input and the coating part for completing coating, the top of coating part is equipped with the opening for inputting coating material, coating box is provided with the board import for the board to go in and the board export for the board to go out, so that the board can pass through the coating part and immerse in the coating material, be provided with the stirring shaft and the conveying roller in the coating part, the stirring shaft is intervally arranged with the conveying roller in the vertical direction, form the passage for the board to pass through, the stirring shaft is configured as stirring the coating material and coating the lower surface of board when rotating, be provided with liftable one group of scraper at the board export of coating part.

Description

Technical Field

[0001] This utility model relates to the field of wood processing technology, specifically to a surface coating device for processing architectural wood panels. Background Technology

[0002] As a primary building and decorative material, wood panels often require surface coating during production to enhance their aesthetics, durability, or corrosion resistance. Currently, one of the most commonly used automated coating equipment is the roller coating unit. Its basic working principle is as follows: a feeding device quantitatively supplies paint to a rotating coating roller, forming a uniform paint layer; subsequently, a conveying mechanism smoothly feeds the wood panel under the coating roller, which, during its rotation, applies the paint to the upper surface of the wood panel.

[0003] However, this traditional roller coating method has obvious technical drawbacks:

[0004] 1. Since the coating roller only acts on the upper surface of the wood board, the left and right sides of the wood board usually cannot be coated with paint. These unprotected sides are easily eroded by moisture or corrosive media during subsequent use, which can cause the wood board to deform, crack or degrade in performance, seriously affecting the overall quality and service life of the product.

[0005] 2. In actual production, it has been found that even if the initial thickness of the same batch of wood boards is exactly the same, the "total thickness of the finished product" of the boards can change due to fluctuations in paint adhesion and coating thickness during the coating process. For example, when the coating is thicker, the overall thickness of the board will increase. Utility Model Content

[0006] Therefore, in view of the above problems, this utility model proposes a board surface coating device for building wood board processing.

[0007] To solve the above-mentioned technical problems, the solution adopted by this utility model is as follows: a board surface coating device for processing building wood panels, including a frame, a coating box provided on the frame, board conveying mechanisms for conveying boards at both ends of the frame, and a paint conveying mechanism for storing and conveying paint to the coating box on one side of the frame. The coating box is characterized in that: the interior of the coating box is divided into an input section for board input and a coating section for completing the coating; an opening for inputting paint is provided above the coating section; and the coating box is provided with a board inlet for board entry and a board outlet for board exit, allowing the board to pass through the coating section and be immersed in the paint.

[0008] The coating section is equipped with a stirring shaft and a conveying roller. The stirring shaft and the conveying roller are spaced apart in the vertical direction to form a channel for the board to pass through. The stirring shaft is configured to stir the coating material and coat the lower surface of the board when it rotates.

[0009] The coating section is equipped with a set of liftable scrapers at the plate outlet, which are used to scrape off excess coating on the upper and lower surfaces of the plate to limit the output thickness of the plate.

[0010] A further improvement is that: side scraping components are provided on both sides of the plate outlet. The side scraping components include a connector on the coating box and a scraping seat rotatably mounted on the connector. The scraping seat has a scraping channel for the side of the plate to pass through. The scraping channels on both sides together form a channel for the plate to pass through. The inner wall of the scraping channel is used to scrape off excess coating from the side of the plate.

[0011] A further improvement is that the scraping seat includes a scraping part for scraping off the paint and a connecting part for connection. The connecting part is provided with abutting protrusion, which is configured to abut against the junction of the connector and the connecting part when the scraping seat is rotated to a preset position.

[0012] A further improvement is that: the coating box is symmetrically arranged with a set of inclined box plates on the side of the plate outlet, the scraper is slidably mounted on the inclined box plates, and a first telescopic cylinder is provided on the inclined box plates. The output end of the first telescopic cylinder is connected to the scraper and is used to drive the scraper to rise and fall.

[0013] A further improvement is that a connecting plate is provided between the inclined box plate and the scraper. The upper end of the connecting plate is connected to the inclined box plate by bolts, and the lower end of the connecting plate is connected to the scraper by bolts. A connecting hole is provided at the lower end of the connecting plate for the bolts to pass through. The connecting hole is an elongated hole extending along the length of the connecting plate.

[0014] A further improvement is that a crossbar is provided inside the coating box, and a screw is provided on the crossbar in a height-reducible manner. The screw and the crossbar are driven to move up and down by a threaded rotational engagement. A pressure plate is provided at the lower end of the screw, and a rubber elastic pad is provided at the lower end of the pressure plate.

[0015] A further improvement is that at least two conveying rollers are rotatably arranged inside the input section, and a rotating motor that is drively connected to the conveying rollers is provided on the side wall of the coating box.

[0016] A further improvement is that the sheet metal conveying mechanism includes a driving wheel and a driven wheel disposed at both ends of the frame, and a conveyor belt disposed between the driving wheel and the driven wheel;

[0017] The frame is also equipped with a pressing device, which includes a vertical frame on the frame, a number of horizontal frames evenly arranged along the width of the conveyor belt, and a downwardly extending bar on the horizontal frame.

[0018] The upper end of the drooping rod is hinged to a second telescopic cylinder, and the lower end is hinged to a rotating rod. The other end of the rotating rod is hinged to the output end of the second telescopic cylinder.

[0019] A downward pressure wheel is rotatably mounted on the rotating rod.

[0020] A further improvement is that the coating conveying mechanism includes a storage tank located on one side of the coating box, a conveying pipe located on the storage tank, and a pump located on the conveying pipe; the output end of the conveying pipe is connected to the coating box.

[0021] A further improvement is made in that: guide wheels are provided on both sides of the frame, a third telescopic cylinder is provided on the frame, a mounting bracket is provided at the output end of the third telescopic cylinder, the guide wheels are provided on the mounting bracket, and the distance between the guide wheels on both sides is adjusted by driving the third telescopic cylinder.

[0022] The beneficial effects of this utility model are as follows: The board enters the coating section through the board inlet and is immersed in the coating. Through immersion coating, it is ensured that the entire surface of the board (including the lower surface and sides) can be coated, thus solving the problem of uncoated sides. The coating section is equipped with a stirring shaft and a conveying roller, which form channels at intervals in the vertical direction. The board passes through these channels. When the stirring shaft rotates, it simultaneously stirs the coating and coats the surface of the board. The stirring shaft has both stirring and coating functions to ensure uniform coating and surface coating quality. At the board outlet, there is a liftable scraper for scraping off excess coating on the upper surface of the board, controlling the coating thickness, ensuring consistent thickness of the finished product, and improving the overall quality of the product. Attached Figure Description

[0023] The preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings to help understand the purpose and advantages of this utility model, wherein:

[0024] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0025] Figure 2 This is a schematic diagram of the internal structure of the coating box in an embodiment of this utility model;

[0026] Figure 3 This is a schematic diagram of the coating box output end structure in an embodiment of this utility model;

[0027] Figure 4 This is a schematic diagram of the side scraping component structure in an embodiment of the present invention.

[0028] The following components are labeled in the diagram: 1. Frame; 2. Coating box; 2. Input section; 201. Coating section; 202. Sheet material inlet; 3. Sheet material outlet; 4. Stirring shaft; 5. Conveying roller; 6. Scraper; 7. Connector; 8. Scraping seat; 9. Scraping section; 901. Connecting section; 902. Abutment protrusion; 903. Scraping channel; 10. Inclined box plate; 11. First telescopic cylinder; 12. Connecting plate; 13. Connecting hole; 14. Crossbar; 15. Screw; 16. Pressure plate; 17. Conveying roller; 18. Rotating motor; 19. Drive wheel; 20. Driven wheel; 21. Vertical frame; 22. Horizontal frame; 23. Driving rod; 24. Second telescopic cylinder; 25. Rotating rod; 26. Lower pressure roller; 27. Conveyor belt; 28. Guide wheel; 29. ​​Storage box; 30. Conveying pipe; 31. Pump; 32. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0030] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly used in this specification are defined relative to the construction shown in the accompanying drawings. The terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively. These are relative concepts and may therefore vary depending on their location and usage. Therefore, these or other directional terms should not be interpreted as restrictive.

[0031] refer to Figures 1 to 4 The present utility model embodiment discloses that:

[0032] A surface coating device for processing architectural wood panels includes a frame 1, a coating tank 2 mounted on the frame 1, board conveying mechanisms for conveying boards at both ends of the frame 1, and a paint conveying mechanism for storing and conveying paint to the coating tank 2 on one side of the frame 1. In this embodiment, the board is first fed into the coating tank 2 via the board conveying mechanism, while the paint conveying mechanism simultaneously conveys paint into the coating tank 2. The internal structure of the coating tank 2 coats the board. After coating, the board surface has a high moisture content; therefore, the board is then conveyed to subsequent processes by the board conveying mechanism. In the temperature-controlled warehouse, an adjustable temperature drying device is installed, along with a low-speed circulating air device, to ensure that the coating on the surface of the board can dry evenly in a stable environment. The coating box 2 is internally divided into an input section 201 for board input and a coating section 202 for coating. The coating section 202 has an opening for inputting coating. The coating box 2 is equipped with a board inlet 3 for board entry and a board outlet 4 for board exit, allowing the board to pass through the coating section 202 and be immersed in the coating. The coating section 202 is equipped with a stirring shaft 5 and a conveying roller 6 (for coating). A motor connected to the stirring shaft 5 and the conveying roller 6 is installed on the side of the box 2. The stirring shaft 5 and the conveying roller 6 are spaced apart in the vertical direction to form a channel for the board to pass through. The stirring shaft 5 is configured to stir the coating and coat the lower surface of the board when rotating. A set of liftable scrapers 7 is provided at the board outlet 4 of the coating section 202 to scrape off excess coating from the upper and lower surfaces of the board to limit the output thickness of the board. The interior of the coating box 2 is divided into an input section 201 and a coating section 202. The board enters the coating section 202 through the board inlet 3 and is immersed in the coating. By using immersion coating, the entire surface of the board (including the lower surface and sides) can be coated, thus solving the problem of uncoated sides. The coating section 202 is equipped with a stirring shaft 5 and a conveying roller 6, which form channels at intervals in the vertical direction through which the board passes. When the stirring shaft 5 rotates, it stirs the paint and coats the surface of the board at the same time. The stirring shaft 5 has both stirring and coating functions to ensure uniform paint and surface coating quality. The board outlet 4 is equipped with a liftable scraper 7, which is used to scrape off excess paint on the upper surface of the board, control the coating thickness, ensure consistent thickness of the finished product, and improve the overall quality of the product.

[0033] It is worth mentioning that the coating part 202 has a coating inlet, the width and height of which are adapted to the width and height of the board, and the coating inlet is also provided with a rubber seal to prevent paint leakage.

[0034] When the sheet material is output from the sheet material outlet 4, the scrapers 7 on the upper and lower sides scrape off excess paint from the upper and lower surfaces of the sheet material. However, excess paint may also adhere to the sides of the sheet material, resulting in uneven coating or paint accumulation, affecting the size and appearance of the sheet material. Based on this, side scraping components are provided on both sides of the sheet material outlet 4. The side scraping components include a connector 8 set on the coating box 2 and a scraping seat 9 rotatably set on the connector 8. The scraping seat 9 has a scraping channel 10 for the side of the sheet material to pass through. The scraping channels 10 on both sides together form a channel for the sheet material to pass through. The inner wall of the scraping channel 10 is used to scrape off excess paint from the sides of the sheet material. The inner wall of the scraping channel 10 scrapes off excess paint from the sides when the sheet material passes through, thereby effectively scraping off excess paint from the sides, ensuring that the side coating is uniform and flat, avoiding paint accumulation, improving coating accuracy and the appearance quality of the sheet material.

[0035] The scraping seat 9 may shift during operation due to vibration or the passage of a workpiece, affecting the stability of the scraping effect. Therefore, the scraping seat 9 includes a scraping part 901 for scraping paint and a connecting part 902 for connection. The connecting part 902 is provided with an abutting protrusion 903, which is configured to abut against the connection between the connecting member 8 and the connecting part 902 when the scraping seat 9 rotates to a preset position. When the scraping seat 9 rotates to the preset position, the abutting protrusion 903 abuts against the connection between the connecting member 8 and the connecting part 902, thereby fixing the position of the scraping seat 9. At this time, the workpiece can pass through the scraping channel 10, ensuring that the scraping seat 9 maintains a stable angle and position during operation, and preventing displacement of the scraping seat 9 due to vibration or impact force generated when the workpiece passes through.

[0036] When the height of the scraper 7 is fixed, it cannot adapt to the coating requirements of different thicknesses of the board, resulting in poor scraping effect or inaccurate coating thickness control. Based on this, the coating box 2 is symmetrically arranged with a set of inclined box plates 11 on one side of the board outlet 4. The scraper 7 is slidably mounted on the inclined box plate 11. The inclined box plate 11 is equipped with a first telescopic cylinder 12. The output end of the first telescopic cylinder 12 is connected to the scraper 7 to drive the scraper 7 to rise and fall, thereby adjusting the height of the scraper 7 to adapt to the coating requirements of different thicknesses of the board, improving the equipment versatility and coating thickness control accuracy.

[0037] A connecting plate 13 is also provided between the inclined box plate 11 and the scraper 7. The upper end of the connecting plate 13 is connected to the inclined box plate 11 by bolts, and the lower end of the connecting plate 13 is connected to the scraper 7 by bolts. The lower end of the connecting plate 13 has a connecting hole 14 for the bolts to pass through. The connecting hole 14 is an elongated hole extending along the length of the connecting plate 13. Through the design of the elongated hole, vertical fine adjustment can be made when the connecting plate 13 is connected to the scraper 7, so that the vertical position of the scraper 7 can be precisely adjusted according to the thickness of the board or the actual coating requirements, avoiding the alignment deviation between the scraper 7 and the board surface due to installation errors, further improving the scraping accuracy, and ensuring the uniformity of the coating on the edge of the board. At the same time, due to the setting of the elongated hole, the first telescopic cylinder 12 is allowed to control the raising and lowering of the scraper 7.

[0038] During the coating process, the substrate may float due to paint flow or conveying vibration, leading to uneven coating or coating defects. Specifically, a horizontal bar 15 is arranged inside the coating box 2, and a screw 16 is vertically mounted on the horizontal bar 15. The screw 16 and the horizontal bar 15 are driven to move up and down through a threaded rotation. A pressure plate 17 is provided at the lower end of the screw 16, and a rubber elastic pad is provided at the lower end of the pressure plate 17. The pressure plate 17 can stably press down on the substrate, prevent floating, ensure the stability of the substrate position during the coating process, and improve coating uniformity. The rubber elastic pad avoids damaging the substrate surface, thus protecting the substrate quality.

[0039] In addition, the material may get stuck or deviate during input, affecting the continuity and stability of the coating process. At least two conveying rollers 18 are rotatably arranged inside the input section 201, and a rotating motor 19 connected to the conveying rollers 18 is provided on the side wall of the coating box 2. The conveying rollers 18 provide a smooth material input, thereby reducing stuckness and deviating, ensuring that the material enters the coating section 202 at a uniform speed, and improving production efficiency and coating quality.

[0040] Furthermore, the sheet material may shift or jump during transport, leading to uneven coating or the sheet material leaving the transport path. In this embodiment, the sheet material transport mechanism includes a drive wheel 20 and a driven wheel 21 disposed at both ends of the frame 1, and a conveyor belt 28 disposed between the drive wheel 20 and the driven wheel 21. Additionally, a drive motor is disposed on the frame 1, which is connected to the drive wheel 20 for driving the conveyor belt 28 to transport the sheet material. A pressing device is also disposed on the frame 1, comprising a vertical frame 22 disposed on the frame 1. The vertical frame 22 has several transverse frames 23 evenly arranged along the width of the conveyor belt 28, extending downwards... A pendant rod 24 is placed on the transverse frame 23; the upper end of the pendant rod 24 is hinged to a second telescopic cylinder 25, and the lower end is hinged to a rotating rod 26. The other end of the rotating rod 26 is hinged to the output end of the second telescopic cylinder 25; a pressure roller 27 is rotatably mounted on the rotating rod 26; when the sheet moves on the conveyor belt 28, the second telescopic cylinder 25 can drive the rotating rod 26 to rotate around the lower end of the pendant rod 24, thereby driving the pressure roller 27 to adjust its height up and down to adapt to sheets of different thicknesses. At this time, the pressure roller 27 and the conveyor belt 28 cooperate to form a clamping structure, which can apply stable pressure to the sheet from above and effectively limit the up and down jumping of the sheet during the conveying process.

[0041] Guide wheels 29 are provided on both sides of the frame 1. A third telescopic cylinder (not shown in the figure) is provided on the frame 1. The third telescopic cylinder is arranged in the width direction of the conveyor belt 28. A mounting frame is provided at the output end of the third telescopic cylinder. The guide wheels 29 are mounted on the mounting frame. The distance between the guide wheels 29 on both sides is adjusted by driving the third telescopic cylinder. When the plate moves on the conveyor belt 28, the guide wheels 29 on both sides can be adjusted synchronously along the width direction of the conveyor belt 28 under the drive of the third telescopic cylinder. The distance between the guide wheels 29 is adjusted by changing the lateral distance of the mounting frame to match the width of the plate. At this time, the guide wheels 29 form a lateral limit from both sides of the plate, which can effectively prevent the plate from shifting to both sides during the conveying process. It works in conjunction with the upper and lower clamping action of the pressure roller 27 to form an all-round conveying and positioning structure, further improving the stability and accuracy of the plate conveying, and ensuring that the subsequent coating process can be carried out stably on the preset path.

[0042] The paint conveying mechanism includes a storage tank 30 located on one side of the coating tank 2, a conveying pipe 31 located on the storage tank 30, and a pump 32 located on the conveying pipe; the output end of the conveying pipe 31 is connected to the coating tank 2; the pump 32 conveys the paint from the storage tank 30 to the coating tank 2, thereby realizing automatic and continuous supply of paint, ensuring a stable amount of paint in the coating tank 2, maintaining the continuous coating process, and improving production efficiency and coating quality.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent substitutions for some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A board surface coating device for processing architectural wood panels, comprising a frame (1), a coating tank (2) disposed on the frame (1), board conveying mechanisms for conveying boards disposed at both ends of the frame (1), and a paint conveying mechanism for storing and conveying paint into the coating tank (2) disposed on one side of the frame (1), characterized in that: The coating box (2) is divided into an input section (201) for inputting the board material and a coating section (202) for completing the coating. The coating section (202) has an opening for inputting the coating material. The coating box (2) is provided with a board material inlet (3) for the board material to pass through and a board material outlet (4) for the board material to exit, so that the board material can pass through the coating section (202) and be immersed in the coating material. The coating section (202) is provided with a stirring shaft (5) and a conveying roller (6). The stirring shaft (5) and the conveying roller (6) are spaced apart in the vertical direction to form a channel for the plate to pass through. The stirring shaft (5) is configured to stir the coating and coat the lower surface of the plate when rotating. The coating section (202) is provided with a set of liftable scrapers (7) at the plate outlet (4) for scraping off excess coating on the upper and lower surfaces of the plate to limit the output thickness of the plate.

2. The board surface coating device for processing architectural wood panels according to claim 1, characterized in that: Side scraping components are provided on both sides of the plate outlet (4). The side scraping components include a connector (8) provided on the coating box (2) and a scraping seat (9) rotatably provided on the connector (8). The scraping seat (9) is provided with a scraping channel (10) for the side of the plate to pass through. The scraping channels (10) on both sides together form a channel for the plate to pass through. The inner wall of the scraping channel (10) is used to scrape off excess coating on the side of the plate.

3. The surface coating device for processing building wood panels according to claim 2, characterized in that: The scraping seat (9) includes a scraping part (901) for scraping off paint and a connecting part (902) for connection. The connecting part (902) is provided with an abutting protrusion (903), which is configured to abut against the junction of the connector (8) and the connecting part (902) when the scraping seat (9) is rotated to a preset position.

4. The board surface coating device for processing architectural wood panels according to claim 1, characterized in that: The coating box (2) is symmetrically arranged with a set of inclined box plates (11) on one side of the plate outlet (4). The scraper (7) is slidably arranged on the inclined box plate (11) and a first telescopic cylinder (12) is provided on the inclined box plate (11). The output end of the first telescopic cylinder (12) is connected to the scraper (7) and is used to drive the scraper (7) to rise and fall.

5. The board surface coating device for processing architectural wood panels according to claim 4, characterized in that: A connecting plate (13) is also provided between the inclined box plate (11) and the scraper (7). The upper end of the connecting plate (13) is connected to the inclined box plate (11) by bolts, and the lower end of the connecting plate (13) is connected to the scraper (7) by bolts. A connecting hole (14) is provided at the lower end of the connecting plate (13) for the bolts to pass through. The connecting hole (14) is an elongated hole extending along the length direction of the connecting plate (13).

6. The board surface coating device for processing architectural wood panels according to claim 1, characterized in that: The coating box (2) is provided with a crossbar (15), and a screw (16) is provided on the crossbar (15) in a lifting manner. The screw (16) and the crossbar (15) are driven to lift by screw rotation. A pressure plate (17) is provided at the lower end of the screw (16), and a rubber elastic pad is provided at the lower end of the pressure plate (17).

7. The board surface coating device for processing architectural wood panels according to claim 1, characterized in that: At least two conveying rollers (18) are rotatably arranged inside the input section (201), and a rotating motor (19) connected to the conveying rollers (18) is provided on the side wall of the coating box (2).

8. The board surface coating device for processing architectural wood panels according to claim 1, characterized in that: The plate conveying mechanism includes a drive wheel (20) and a driven wheel (21) disposed at both ends of the frame (1), and a conveyor belt (28) disposed between the drive wheel (20) and the driven wheel (21); The frame (1) is also provided with a pressing device. The pressing device includes a vertical frame (22) provided on the frame (1). The vertical frame (22) is provided with a number of horizontal frames (23) evenly arranged along the width direction of the conveyor belt (28), and a downwardly extending rod (24) is provided on the horizontal frame (23). The upper end of the drooping rod (24) is hinged to a second telescopic cylinder (25), and the lower end is hinged to a rotating rod (26). The other end of the rotating rod (26) is hinged to the output end of the second telescopic cylinder (25). A pressure wheel (27) is rotatably mounted on the rotating rod (26).

9. The board surface coating device for processing architectural wood panels according to claim 1, characterized in that: The coating conveying mechanism includes a storage tank (30) disposed on one side of the coating tank (2), a conveying pipe (31) disposed on the storage tank (30), and a pump (32) disposed on the conveying pipe (31); the output end of the conveying pipe (31) is connected to the coating tank (2).

10. A board surface coating device for processing architectural wood panels according to claim 1, characterized in that: Guide wheels (29) are provided on both sides of the frame (1). A third telescopic cylinder is provided on the frame (1). A mounting bracket is provided at the output end of the third telescopic cylinder. The guide wheels (29) are provided on the mounting bracket. The distance between the guide wheels (29) on both sides is adjusted by driving the third telescopic cylinder.

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