Wooden furniture base material surface coating equipment

Abstract

The invention relates to the technical field of plate surface treatment, in particular to wood furniture base material surface coating equipment. Comprising a material containing box used for containing paint, two rotating discs rotationally installed on the left side and the right side of the material containing box, crank arm structures installed on the rotating discs, clamping structures installed on the crank arm structures and used for clamping and fixing a base material, and an air blowing unit used for jetting air flow to the surface of the base material. The crank arm structure comprises a first connecting arm, a second connecting arm and a third connecting arm which are linearly arranged, and the first connecting arm, the second connecting arm and the third connecting arm are rotationally connected in sequence; by means of the mode that redundant paint is blown away through airflow, it is guaranteed that the surface, including special positions such as patterns and grooves, of the wood base material can be covered with uniform and thin-layer paint, and the coating quality and the attractiveness of finished products are improved.

Description

Technical Field

[0001] The invention relates to the technical field of plate surface treatment, in particular to a surface coating device for a wooden furniture substrate. Background Art

[0002] In the current furniture manufacturing industry, wood substrate is one of the main materials for furniture, flooring and interior decoration. Its surface treatment technology is crucial to improving the aesthetics, durability and functionality of the product. The surface treatment methods of wood substrate generally include grinding, deburring, coating and other treatment methods. Among them, coating treatment is to evenly adhere the paint to the substrate to protect the substrate and form a beautiful color on the substrate surface. The traditional coating method is to use a brush roller. After the brush roller is dipped in the paint, it rolls on the surface of the substrate to apply the paint on the substrate. However, due to the presence of decorative patterns, grooves and other special positions on the surface of the substrate, the traditional coating method cannot evenly apply the paint to the special position, resulting in the need for workers to perform subsequent touch-up work. The working method is cumbersome and cannot achieve rapid and comprehensive coating operations on the substrate, resulting in low work efficiency. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides a surface coating device for wooden furniture substrates, and the specific technical solution adopted is: A surface coating device for wooden furniture substrates, comprising a material holding box for holding paint, two turntables rotatably mounted on the left and right sides of the material holding box, a crank structure mounted on each turntable, a clamping structure mounted on the crank structure and used for clamping and fixing the substrate, and an air blowing unit for spraying airflow onto the surface of the substrate; The crank arm structure comprises a first connecting arm, a second connecting arm and a third connecting arm which are arranged in a straight line. The first connecting arm, the second connecting arm and the third connecting arm are rotatably connected in sequence. The first connecting arm is slidably inserted on the rotating disk, and the clamping structure is fixed on the third connecting arm. When the curved arm structure is bent, the substrate moves downward and is immersed in the paint, and when the curved arm structure is straightened, the air blowing unit sprays air flow toward the surface of the substrate and blows away excess paint.

[0004] Furthermore, the crank arm structure also includes a sleeve slidably sleeved on the outside of the first connecting arm, the second connecting arm and the third connecting arm, and the sleeve passes through the rotating disk and slides relatively.

[0005] Furthermore, the rotating disk is provided with a power unit for increasing the power for the movement of the first connecting arm and the sleeve; The power unit comprises an outer plate fixed on the turntable, an end of the first connecting arm away from the substrate abuts against the side wall of the outer plate, a first mounting plate is fixed on the sleeve, a second mounting plate is fixed on the first connecting arm, a threaded rod and a threaded sleeve are provided between the first mounting plate and the second mounting plate, and the threaded rod and the threaded sleeve are threadedly connected to each other, the threaded rod is rotatably mounted on the second mounting plate, and the threaded sleeve is fixed on the first mounting plate; The first mounting plate is connected to the outer plate via a spring, the outer plate is provided with a baffle for limiting the moving position of the first mounting plate, the outer plate is provided with a first motor, the output end of the first motor is provided with a square shaft, and the square shaft is slidably inserted into the threaded rod.

[0006] Furthermore, the gas ejected by the air blowing unit is high-temperature humid air.

[0007] Furthermore, the air blowing unit includes two arc plates distributed on the left and right, each arc plate has a rotating arc, two air guide tubes are connected between the two rotating arcs, each air guide tube has multiple nozzles, and the nozzles on the two air guide tubes are respectively facing the upper and lower surfaces of the substrate.

[0008] Furthermore, the two arc-shaped plates are connected by a U-shaped plate, the U-shaped plate extends outside the material holding box, and the U-shaped plate is connected to the material holding box through a cylinder; A clamping plate is provided on the side wall of the third connecting arm, and a clamping slot plate used in conjunction with the clamping plate is provided on the inner wall of the rotating arc; Wherein, in the natural state, the rotating arc opening and the arc plate opening are both oriented toward the moving direction of the U-shaped plate.

[0009] Furthermore, a lever post is provided on the side wall of the rotating arc, and each lever post is provided with two spring plates on the upper and lower sides, and the two spring plates are fixed on the side wall of the U-shaped plate. When the rotating arc rotates and drives the lever post to move between the two spring plates, the two spring plates play an elastic locking role on the lever post.

[0010] Furthermore, each turntable is equipped with a second motor and a transmission wheel for providing power for the rotation of the turntable.

[0011] The advantages of the present invention are: By using airflow to blow away excess paint, it is ensured that the surface of the wooden substrate, including special locations such as patterns and grooves, can be covered with a uniform and thin layer of paint, thereby improving the coating quality and the aesthetics of the finished product; a curved arm structure is used to automatically control the lifting and soaking process of the substrate, thereby reducing the tedious steps of manual operation, especially eliminating the subsequent manual touch-up of paint, achieving fast and comprehensive coating operations, greatly improving work efficiency, and facilitating the rotation of the substrate; the technology of using airflow to blow away excess paint effectively reduces paint waste, saves material costs, meets environmental protection requirements, and reduces waste emissions in the production process; in summary, the invention not only solves the problems of low efficiency and unstable quality existing in traditional coating methods, but also achieves more efficient resource utilization and higher quality product output through technological innovation, and is a major advancement in surface treatment technology in the wooden furniture manufacturing industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 yes Figure 1 Schematic diagram of the internal structure of the middle material box; Figure 3 yes Figure 2 Schematic diagram of the structure after removing the air blowing unit; Figure 4 yes Figure 3 Schematic diagram of the enlarged structure of the middle casing; Figure 5 yes Figure 2 Schematic diagram of the enlarged structure of the middle air blowing unit; Figure 6 yes Figure 3 An enlarged structural diagram of the middle and outer panels and the structures thereon; Figure numerals: 1. material box; 2. substrate; 3. turntable; 4. air blowing unit; 5. first connecting arm; 6. second connecting arm; 7. third connecting arm; 8. clamping structure; 9. sleeve; 10. outer plate; 11. first mounting plate; 12. second mounting plate; 13. threaded rod; 14. threaded sleeve; 15. spring; 16. baffle; 17. first motor; 18. square shaft; 19. arc plate; 20. rotating arc; 21. air guide tube; 22. U-shaped plate; 23. cylinder; 24. slot plate; 25. card plate; 26. spring; 27. shifting column; 28. second motor; 29. ​​transmission wheel. DETAILED DESCRIPTION

[0014] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0015] In the description of the present invention, it should be noted that the orientations or positional relationships indicated by “center”, “up”, “down”, “left”, “right”, “vertical”, “horizontal”, “inside” and “outside”, etc., are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0016] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. This embodiment is written in a progressive manner.

[0017] like Figures 1 to 6 As shown, a surface coating device for a wooden furniture substrate of the present invention comprises a material containing box 1 for containing paint, two turntables 3 rotatably mounted on the left and right sides of the material containing box 1, a crank structure mounted on each turntable 3, a clamping structure 8 mounted on the crank structure and used for clamping and fixing a substrate 2, and an air blowing unit 4 for spraying an air flow onto the surface of the substrate 2; The crank arm structure includes a first connecting arm 5, a second connecting arm 6 and a third connecting arm 7 which are arranged in a straight line. The first connecting arm 5, the second connecting arm 6 and the third connecting arm 7 are rotatably connected in sequence. The first connecting arm 5 is slidably inserted on the rotating disk 3, and the clamping structure 8 is fixed on the third connecting arm 7. When the curved arm structure is bent, the substrate 2 moves downward and is immersed in the paint, and when the curved arm structure is straightened, the air blowing unit 4 sprays air flow toward the surface of the substrate 2 and blows away excess paint.

[0018] In detail, the material holding box 1 is used to hold paint and provide the substrate 2 with paint immersion and dyeing work. The two turntables 3 are rotatably installed on the left and right side walls of the material holding box 1, and the turntable 3 passes through the side walls of the material holding box 1. The curved arm structure and the clamping structure 8 on the turntable 3 are used to support the substrate 2, and the two groups of curved arm structures support the left and right sides of the substrate 2 respectively. When the two first connecting arms 5 approach each other synchronously, the substrate 2 naturally moves downward due to the action of gravity. At this time, the second connecting arm 6 tilts and moves downward, and the third connecting arm 7 moves downward synchronously with the substrate 2 and the clamping structure 8. When the two first connecting arms 5 move away from each other synchronously, the first connecting arm 5 pulls the second connecting arm 6, the third connecting arm 7 and the substrate 2 to straighten, thereby realizing the first connecting arm 5 and the second connecting arm 6 through the movement of the first connecting arm 5. And the bending and straightening movement of the third connecting arm 7 is realized to realize the up and down movement of the substrate 2. The blowing unit 4 is used to evenly blow gas to the surface of the substrate 2 after soaking in paint. The gas can blow away the excess paint on the surface of the substrate 2, so that a thin layer of paint remains on the surface of the substrate 2, so that the thickness of the paint remains uniform. At the same time, since the gas blows the paint to flow on the surface of the substrate 2, it is convenient for the airflow to carry the paint into special positions such as patterns and grooves on the surface of the substrate 2, so as to realize the comprehensive painting of the substrate 2. The clamping structure 8 can adopt a conventional structure to complete the fixing of the substrate 2. The excess gas in the material box 1 can be discharged to the external air purification equipment through the exhaust pipe arranged on the top of the material box 1, and a material port and a box cover for sealing the material port are arranged on the top of the material box 1.

[0019] During operation, the substrate 2 is fixed on the two sets of crank structures respectively through the two clamping structures 8. The substrate 2 is horizontal, and the two first connecting arms 5 are pushed closer to each other. The substrate 2 naturally moves down and is immersed in the paint in the material box 1. The horizontal downward movement of the substrate 2 can conveniently reduce the displacement distance of the substrate 2, so that the substrate 2 can be quickly immersed in the paint, and avoid the need to move the substrate 2 down a large distance to make the substrate 2 completely immersed in the paint when the substrate 2 is vertical, thereby saving space. After the substrate 2 is immersed in the paint for a specified time, the two substrates 2 are synchronously moved away from each other, and the crank structure is straightened, so that the substrate 2 is removed from the paint, and the turntable 3 is rotated. The turntable 3 can drive the substrate 2 to rotate centrifugally, and the excess paint on the surface of the substrate 2 can be centrifugally thrown out. At the same time, the air blowing unit 4 is used to blow gas to the surface of the substrate 2, so as to facilitate the paint to be blown to a special position on the surface of the substrate 2, so as to realize the working mode in which the paint is fully coated on the surface of the substrate 2. After the gas is blown for a specified time, only a thin layer of paint remains on the surface of the substrate 2, so that the substrate 2 can be taken out.

[0020] By using airflow to blow away excess paint, it is ensured that the surface of the wooden substrate, including special locations such as patterns and grooves, can be covered with a uniform and thin layer of paint, thereby improving the coating quality and the aesthetics of the finished product; a curved arm structure is used to automatically control the lifting and soaking process of the substrate, thereby reducing the tedious steps of manual operation, especially eliminating the subsequent manual touch-up of paint, achieving fast and comprehensive coating operations, greatly improving work efficiency, and facilitating the rotation of the substrate 2; the technology of using airflow to blow away excess paint effectively reduces paint waste, saves material costs, meets environmental protection requirements, and reduces waste emissions in the production process; in summary, the invention not only solves the problems of low efficiency and unstable quality existing in traditional coating methods, but also achieves more efficient resource utilization and higher quality product output through technological innovation, and is a major advancement in surface treatment technology in the wooden furniture manufacturing industry.

[0021] Furthermore, the crank arm structure further comprises a sleeve 9 slidably sleeved on the outside of the first connecting arm 5 , the second connecting arm 6 and the third connecting arm 7 , and the sleeve 9 passes through the rotating disk 3 and slides relatively.

[0022] In detail, when the substrate 2 is soaked and moved to the initial position, the curved arm structure straightens, and the sleeve 9 slides to the outside of the first connecting arm 5, the second connecting arm 6 and the third connecting arm 7, so that the first connecting arm 5, the second connecting arm 6 and the third connecting arm 7 are limited by the sleeve 9 to prevent them from bending, thereby ensuring that the curved arm structure can be stable and firm during rotation.

[0023] When the substrate 2 needs to be immersed in paint, the sleeve 9 moves in a direction away from the substrate 2. At this time, the sleeve 9 exposes the second connecting arm 6 and the third connecting arm 7, thereby facilitating normal bending of the curved arm structure.

[0024] Furthermore, the rotating disk 3 is provided with a power unit for increasing the power for the movement of the first connecting arm 5 and the sleeve 9; The power unit includes an outer plate 10 fixed on the turntable 3, the end of the first connecting arm 5 away from the substrate 2 abuts against the side wall of the outer plate 10, a first mounting plate 11 is fixed on the sleeve 9, a second mounting plate 12 is fixed on the first connecting arm 5, a threaded rod 13 and a threaded sleeve 14 are provided between the first mounting plate 11 and the second mounting plate 12, and the threaded rod 13 and the threaded sleeve 14 are screwed together, the threaded rod 13 is rotatably mounted on the second mounting plate 12, and the threaded sleeve 14 is fixed on the first mounting plate 11; The first mounting plate 11 is connected to the outer plate 10 via a spring 15 , and the outer plate 10 is provided with a baffle 16 for limiting the moving position of the first mounting plate 11 , and the outer plate 10 is provided with a first motor 17 , and the output end of the first motor 17 is provided with a square shaft 18 , and the square shaft 18 is slidably inserted into the threaded rod 13 .

[0025] In detail, when the first motor 17 is stopped, due to the limitation of the square shaft 18, the threaded rod 13 and the threaded sleeve 14 cannot rotate relative to each other. Since the end of the first connecting arm 5 abuts against the outer plate 10, the first connecting arm 5 and the sleeve 9 are both in a stationary state. The spring 15 provides elastic tension for the first mounting plate 11 and the sleeve 9. When the crank arm needs to bend, the first motor 17 drives the threaded rod 13 to rotate through the square shaft 18. At this time, since the spring 15 generates elastic tension on the sleeve 9, the first mounting plate 11 first moves toward the second mounting plate 12, and the second mounting plate 12 moves toward the second mounting plate 12. The mounting plate 12 and the first connecting arm 5 are stationary, and the sleeve 9 exposes the second connecting arm 6 and the third connecting arm 7. When the first mounting plate 11 moves to the position of the baffle 16, the baffle 16 blocks the first mounting plate 11. At this time, the sleeve 9 stops moving, and the square shaft 18 continues to drive the threaded rod 13 to rotate. The threaded rod 13 is screwed into the threaded sleeve 14. The threaded rod 13 drives the first connecting arm 5 to move synchronously through the second mounting plate 12, so that the first connecting arm 5 moves toward the substrate 2, and the two first connecting arms 5 approach each other and move the substrate 2 downward.

[0026] Through the above-mentioned structural method, the sliding movement of the sleeve 9 and the bending movement of the arm can be realized, and the movement is completed by using the threaded rod 13 and the threaded sleeve 14 that can both move. At the same time, this method only needs to set up a power source, and its operation and structure are simple and highly functional.

[0027] Furthermore, the gas ejected by the air blowing unit 4 is high-temperature humid air.

[0028] In detail, by spraying high-temperature moisture onto the substrate 2, the paint on the surface of the substrate 2 can be moisturized and heated to soften, thereby making the paint have a certain fluidity and avoiding the hardening of the paint and causing inconsistent paint thickness on the surface of the substrate 2 when air is directly blown.

[0029] Furthermore, the air blowing unit 4 includes two arc plates 19 distributed on the left and right, each arc plate 19 is provided with a rotating arc 20, two air guide tubes 21 are connected between the two rotating arcs 20, each air guide tube 21 is provided with multiple nozzles, and the nozzles on the two air guide tubes 21 are respectively facing the upper and lower surfaces of the substrate 2.

[0030] In detail, the two arc plates 19 are respectively located on the left and right sides of the substrate 2, and the two air ducts 21 are respectively located on the upper and lower sides of the substrate 2. The two air ducts 21 can blow gas toward the upper and lower surfaces of the substrate 2, so as to blow away excess paint on the surface of the substrate 2, and at the same time cooperate with the rotational movement of the substrate 2 to avoid excess paint residue. Since the substrate 2 rotates, the rotating arc 20 on the arc plate 19 synchronously follows the rotation of the substrate 2, so that the two air ducts 21 can always blow air to both sides of the substrate 2.

[0031] Furthermore, the two arc-shaped plates 19 are connected by a U-shaped plate 22, the U-shaped plate 22 extends outside the material holding box 1, and the U-shaped plate 22 is connected to the material holding box 1 through a cylinder 23; A clamping plate 25 is disposed on the side wall of the third connecting arm 7, and a clamping slot plate 24 used in conjunction with the clamping plate 25 is disposed on the inner wall of the rotating arc 20; In the natural state, the opening of the rotating arc 20 and the opening of the arc plate 19 are both oriented toward the moving direction of the U-shaped plate 22 .

[0032] In detail, when the substrate 2 moves up and down, the air duct 21 needs to be kept away from the substrate 2. At this time, the cylinder 23 extends and pushes the U-shaped plate 22 away from the substrate 2. The U-shaped plate 22 drives the arc plate 19, the rotating arc 20 and the air duct 21 to move. When the substrate 2 is soaked, the cylinder 23 contracts and pushes the U-shaped plate 22 close to the substrate 2. The arc plate 19 and the rotating arc 20 are movably sleeved on the outside of the third connecting arm 7 through their upper openings, and the clamping plate 25 on the third connecting arm 7 is inserted into the clamping slot plate 24. When the third connecting arm 7 rotates, the third connecting arm 7 can push the rotating arc 20 to rotate through the clamping plate 25 and the clamping slot plate 24, so that the air duct 21 and the substrate 2 rotate synchronously.

[0033] Furthermore, a lever post 27 is provided on the side wall of the rotating arc 20, and each lever post 27 is provided with two spring plates 26 on the upper and lower sides. The two spring plates 26 are fixed on the side wall of the U-shaped plate 22. When the rotating arc 20 rotates and drives the lever post 27 to move between the two spring plates 26, the two spring plates 26 play an elastic locking role on the lever post 27.

[0034] In detail, when the slot plate 24 is separated from the clamping plate 25, the rotating arc 20 is in a state of random movement on the arc plate 19. In order to limit the rotating arc 20, the position of the rotating arc 20 on the arc plate 19 can be limited by positioning the lever 27 between the two spring sheets 26 and limiting the lever 27 with the help of the two spring sheets 26, thereby preventing the rotating arc 20 from rotating randomly. When the third connecting arm 7 drives the rotating arc 20 to rotate, the lever 27 overcomes the elastic force of the spring sheet 26 and pushes the spring sheet 26 to deform, thereby allowing the rotating arc 20 to rotate.

[0035] Furthermore, each turntable 3 is provided with a second motor 28 and a transmission wheel 29 for providing power for the rotation of the turntable 3 .

[0036] In detail, the second motor 28 is fixed on the outer wall of the material holding box 1, the transmission wheel 29 is installed on the output end of the second motor 28, and the transmission wheel 29 is connected to the turntable 3, thereby directly driving the turntable 3 to rotate through the second motor 28 and the transmission wheel 29.

[0037] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A surface coating device for wooden furniture substrate, characterized in that: It comprises a material container (1) for containing paint, two turntables (3) rotatably mounted on the left and right sides of the material container (1), a crank structure mounted on each turntable (3), a clamping structure (8) mounted on the crank structure and used for clamping and fixing a substrate (2), and an air blowing unit (4) for spraying an air flow onto the surface of the substrate (2); The crank arm structure comprises a first connecting arm (5), a second connecting arm (6) and a third connecting arm (7) arranged in a straight line, the first connecting arm (5), the second connecting arm (6) and the third connecting arm (7) being rotatably connected in sequence, the first connecting arm (5) being slidably inserted on the rotating disk (3), and the clamping structure (8) being fixed on the third connecting arm (7); When the curved arm structure is bent, the substrate (2) moves downward and is immersed in the paint, and when the curved arm structure is straightened, the air blowing unit (4) sprays air flow toward the surface of the substrate (2) and blows away excess paint.

2. The surface coating equipment for wooden furniture substrate according to claim 1 is characterized in that: The crank arm structure further comprises a sleeve (9) slidably sleeved on the outside of the first connecting arm (5), the second connecting arm (6) and the third connecting arm (7); the sleeve (9) passes through the rotating disk (3) and slides relatively thereto.

3. The surface coating equipment for wooden furniture substrate according to claim 2 is characterized in that: The rotating disk (3) is provided with a power unit for increasing the power for moving the first connecting arm (5) and the sleeve (9); The power unit comprises an outer plate (10) fixed on the turntable (3); an end of the first connecting arm (5) away from the base material (2) abuts against a side wall of the outer plate (10); a first mounting plate (11) is fixed on the sleeve (9); a second mounting plate (12) is fixed on the first connecting arm (5); a threaded rod (13) and a threaded sleeve (14) are provided between the first mounting plate (11) and the second mounting plate (12); the threaded rod (13) and the threaded sleeve (14) are threadedly connected to each other; the threaded rod (13) is rotatably mounted on the second mounting plate (12); and the threaded sleeve (14) is fixed on the first mounting plate (11); The first mounting plate (11) and the outer plate (10) are connected via a spring (15); a baffle (16) for limiting the moving position of the first mounting plate (11) is provided on the outer plate (10); a first motor (17) is provided on the outer plate (10); an output end transmission of the first motor (17) is provided with a square shaft (18); the square shaft (18) is slidably inserted into the threaded rod (13).

4. The surface coating equipment for wooden furniture substrate according to claim 3 is characterized in that: The gas ejected by the air blowing unit (4) is high-temperature humid gas.

5. The surface coating equipment for wooden furniture substrate according to claim 4 is characterized in that: The air blowing unit (4) comprises two arc-shaped plates (19) distributed on the left and right, each arc-shaped plate (19) having a rotating arc (20) rotatably arranged therein, two air guide tubes (21) being connected between the two rotating arcs (20), each air guide tube (21) having a plurality of nozzles arranged thereon, the nozzles on the two air guide tubes (21) facing the upper and lower surfaces of the substrate (2) respectively.

6. The surface coating equipment for wooden furniture substrate according to claim 5 is characterized in that: The two arc-shaped plates (19) are connected via a U-shaped plate (22), the U-shaped plate (22) extends outside the material holding box (1), and the U-shaped plate (22) is connected to the material holding box (1) via a cylinder (23); A clamping plate (25) is provided on the side wall of the third connecting arm (7), and a clamping slot plate (24) used in conjunction with the clamping plate (25) is provided on the inner wall of the rotating arc (20); Wherein, in the natural state, the opening of the rotating arc (20) and the opening of the arc-shaped plate (19) are both oriented towards the moving direction of the U-shaped plate (22).

7. The surface coating equipment for wooden furniture substrate according to claim 6 is characterized in that: A lever post (27) is arranged on the side wall of the rotating arc (20), and two spring plates (26) are arranged on the upper and lower sides of each lever post (27). The two spring plates (26) are fixed on the side wall of the U-shaped plate (22). When the rotating arc (20) rotates and drives the lever post (27) to move between the two spring plates (26), the two spring plates (26) play an elastic locking role on the lever post (27).

8. The surface coating equipment for wooden furniture substrate according to claim 7 is characterized in that: Each turntable (3) is provided with a second motor (28) and a transmission wheel (29) for providing power for the rotation of the turntable (3).

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