Wood board powder spraying self-overturning type continuous spraying device

By designing a self-turning continuous spraying device for wooden board powder spraying and utilizing a lifting and turning mechanism to realize automatic spraying of wooden boards, the problems of low production efficiency and inconsistent spraying quality caused by manual intervention are solved, thereby improving production efficiency and spraying quality.

CN223417516UActive Publication Date: 2025-10-10QINGYUAN OUPAI INTEGRATED HOME FURNISHING CO LTD
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Patent Information

Application Number
CN202422665055.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-01
Publication Date
2025-10-10
Estimated Expiration
2034-11-01

AI Technical Summary

Technical Problem

Existing wood board spraying equipment requires manual intervention when changing wood boards, resulting in low production efficiency and inconsistent spraying quality.

Method used

A self-turning continuous powder spraying device for wooden boards is designed. The wooden boards are lifted into the spraying chamber by a lifting mechanism and turned over by a turning mechanism to achieve automatic spraying on both sides and reduce manual intervention.

Benefits of technology

The automated operation of wood board spraying is realized, production efficiency is improved, and the consistency and stability of spraying quality are ensured.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model relates to the technical field of wood board spraying, in particular to a wood board powder spraying self-overturning type continuous spraying device which comprises a working table, a conveying mechanism is arranged on the working table, a spraying device is arranged above the middle section of the conveying mechanism, and the spraying device comprises a spraying chamber arranged on the working table. A clamping mechanism, a lifting mechanism, an overturning mechanism and a spraying mechanism are arranged in the spraying chamber; the clamping mechanism is used for clamping and fixing the wood board conveyed by the conveying mechanism; the lifting mechanism is used for lifting the clamped and fixed wood board into the spraying chamber; the turnover mechanism is used for turning over the wood board with one face sprayed to the other face. The spraying mechanism is used for spraying the surface of the wood board; the wood board fixed by the clamping mechanism is lifted to the interior of the spraying chamber through the lifting mechanism, the spraying mechanism sprays one face of the wood board, after spraying is completed, the wood board is overturned through the overturning mechanism, the other face of the wood board is sprayed through the spraying mechanism, automatic operation is achieved, manual intervention is reduced, and the production efficiency is improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of wood board spraying, in particular to a self-turning continuous powder spraying device for wood boards. Background Art

[0002] Lumber is a flat, rectangular building material made into standardized sizes and used in the construction industry as wall, ceiling, or floor components. Wood boards are made from whole logs. These boards are durable and have a natural grain, making them an excellent choice for home renovations. However, these boards are expensive and are generally categorized by their specific name; there is no standardized specification.

[0003] When processing wooden boards, wooden board processing manufacturers need to spray the surface of the wooden boards. After the automated equipment completes the spraying of the wooden board surface, the staff needs to manually replace the wooden boards. When the wooden boards are heavier, such as wooden door panels, two need to be replaced. During the replacement time, the spraying equipment stops working and needs to be replaced before spraying can be carried out, which reduces production efficiency. Utility Model Content

[0004] In response to the shortcomings of the existing technology, the utility model provides a self-flipping continuous spraying device for powder spraying on wooden boards. The wooden board fixed by the clamping mechanism is lifted by the lifting mechanism to the inside of the spraying chamber, and the spraying mechanism sprays one side of the wooden board. After the spraying is completed, it is flipped by the flipping mechanism, and the spraying mechanism sprays the other side, thereby solving the problems raised in the above background technology.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: a self-turning continuous spraying device for powder spraying on wooden boards, comprising a workbench, a conveying mechanism is provided on the workbench, a spraying device is provided above the middle section of the conveying mechanism, the spraying device comprises a spraying chamber arranged on the workbench, a clamping mechanism, a lifting mechanism, a turning mechanism and a spraying mechanism are provided inside the spraying chamber; the clamping mechanism is used to clamp and fix the wooden board conveyed by the conveying mechanism; the lifting mechanism is used to lift the clamped and fixed wooden board to the interior of the spraying chamber; the turning mechanism is used to turn the wooden board with one side sprayed to the other side; the spraying mechanism is used to spray the surface of the wooden board; when the conveying mechanism conveys the wooden board to the clamping mechanism, the clamping mechanism fixes the wooden board, and at this time the lifting mechanism lifts the clamping mechanism upward to the interior of the spraying chamber, and sprays one side of the wooden board through the spraying mechanism. After the spraying is completed, the turning mechanism turns the wooden board to the other side, and the spraying mechanism sprays the wooden board on the turned side again. After the spraying on both sides is completed, the lifting mechanism lowers the wooden board out of the spraying chamber and conveys it to the next process through the conveying mechanism.

[0006] Preferably, the lifting mechanism includes a fixed frame arranged on the workbench, a first servo motor is symmetrically arranged on the fixed frame, an output end of the first servo motor is connected to a threaded rod, and a movable block is movably connected to the threaded rod.

[0007] Preferably, sliding grooves are provided on both sides of the fixing frame, and sliding blocks matching the sliding grooves are provided on both sides of the movable block.

[0008] Preferably, the turning mechanism comprises a rotating motor mounted on the movable block, and an output end of the rotating motor is fixedly connected to the clamping block.

[0009] Preferably, the clamping mechanism includes a second servo motor mounted on the clamping block, an output end of the second servo motor is fixedly connected to a lower pressing plate, and a rubber gasket is provided on the lower pressing plate.

[0010] Preferably, the spraying mechanism includes a spraying frame arranged at the top of the interior of the spraying chamber, the spraying frame is provided with a track groove, and the track groove is connected to the electrostatic spray gun.

[0011] Preferably, a powder box is installed on the top of the spraying room, and the powder box is connected to the electrostatic spray gun through a pipeline.

[0012] Preferably, a control mechanism is provided on the workbench.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention proposes a self-flipping continuous spraying device for powder spraying on wooden boards, which lifts the wooden board fixed by the clamping mechanism to the inside of the spraying chamber through a lifting mechanism, and the spraying mechanism sprays one side of the wooden board. After the spraying is completed, it is flipped through the flipping mechanism, and the spraying mechanism sprays the other side, realizing automated operation, reducing manual intervention, improving production efficiency, and ensuring the consistency and stability of the spraying quality. It is an indispensable and efficient production equipment in the modern wood processing industry.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the three-dimensional structure of a self-turning continuous spraying device for powder coating wood panels Figure 1 .

[0016] Figure 2 A schematic diagram of the three-dimensional structure of a self-turning continuous spraying device for powder coating wood panels Figure 2 .

[0017] Figure 3 A cross-sectional view of a self-turning continuous spraying device for powder coating wood panels Figure 1 .

[0018] Figure 4 A cross-sectional view of a self-turning continuous spraying device for powder coating wood panels Figure 2 .

[0019] Figure 5 The figure is a schematic diagram of the three-dimensional structure of the flipping mechanism of a self-flipping continuous spraying device for powder coating wood panels.

[0020] Figure 6 The figure is a schematic diagram of the three-dimensional structure of the spraying mechanism of a self-turning continuous spraying device for powder coating wood panels.

[0021] In the figure: 1. workbench; 2. transmission mechanism; 3. spraying device; 4. spraying chamber; 5. clamping mechanism; 51. second servo motor; 52. lower pressure plate; 6. lifting mechanism; 61. fixed frame; 611. sliding groove; 62. first servo motor; 63. threaded rod; 64. movable block; 641. sliding block; 7. flipping mechanism; 71. rotating motor; 72. clamping block; 8. spraying mechanism; 81. spraying frame; 82. track groove; 83. electrostatic spray gun; 9. powder box; 10. control mechanism. DETAILED DESCRIPTION

[0022] The following embodiments of the present invention are further described in detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the present invention but are not intended to limit the scope of the present invention. All other embodiments obtained by persons of ordinary skill in the art without creative effort are intended to fall within the scope of protection of the present invention.

[0023] Combine Figure 1 、 Figure 2 、 Figure 3 and Figure 4As shown, a self-turning continuous spraying device for powder coating of wooden boards comprises a workbench 1, a conveying mechanism 2 is provided on the workbench 1, a spraying device 3 is provided above the middle section of the conveying mechanism 2, the spraying device 3 comprises a spraying chamber 4 provided on the workbench 1, a clamping mechanism 5, a lifting mechanism 6, a turning mechanism 7 and a spraying mechanism 8 are provided inside the spraying chamber 4; the clamping mechanism 5 is used to clamp and fix the wooden board conveyed by the conveying mechanism 2; the lifting mechanism 6 is used to lift the clamped and fixed wooden board into the interior of the spraying chamber 4; the turning mechanism 7 is used to turn the wooden board to the side to be sprayed Turn to the other side; the spraying mechanism 8 is used to spray the surface of the wooden board; when the transmission mechanism 2 transmits the wooden board to the clamping mechanism 5, the clamping mechanism 5 fixes the wooden board, and the lifting mechanism 6 lifts the clamping mechanism 5 upward to the interior of the spraying chamber 4. The spraying mechanism 8 sprays one side of the wooden board. After spraying is completed, the flipping mechanism 7 flips the wooden board to the other side. The spraying mechanism 8 sprays the flipped side of the wooden board again. After spraying on both sides, the lifting mechanism 6 lowers the wooden board out of the spraying chamber 4 and transmits it to the next process via the transmission mechanism 2. Specifically, a self-flipping continuous spraying device for powder spraying wooden boards improves the efficiency and quality of wooden board spraying operations and realizes an automated production process. The workbench 1 serves as the basic support platform of the entire spraying device 3. The workbench 1 is sturdy and durable, and can stably bear the weight of the entire system and the dynamic load during operation. The transmission mechanism 2 is driven by a motor and realizes continuous and smooth transmission of wooden boards through chains, belts, or rollers. The conveyor mechanism 2 is designed with a precise positioning control system, ensuring that the planks are perfectly aligned upon arrival at the clamping mechanism 5, paving the way for subsequent spraying. The spray booth 4 is enclosed and equipped with a well-ventilated and dust-collecting system to effectively prevent dust leakage during the spraying process, ensuring a safe and healthy working environment. Adequate lighting allows for easy monitoring of the spraying results. The clamping mechanism 5 adapts to the size and shape of the planks, ensuring a secure clamp without damaging the surface. The clamping mechanism 5 is designed for rapid response and precise positioning, improving work efficiency. The lifting mechanism 6 is responsible for smoothly lifting the clamped planks to the designated position within the spray booth 4. This smooth, vibration-free lifting process ensures a seamless pre-spraying preparation phase. The flipping mechanism 7 precisely flips the planks 180 degrees after spraying one side, allowing for spraying on the other side. During the flipping process, the planks remain stable, preventing the risk of misalignment or falling. The spraying mechanism 8 evenly applies the powder coating to the plank surface, creating a high-quality coating. The spray mechanism 8 is equipped with a sophisticated control system that automatically adjusts the spray volume, speed, and distance according to preset parameters, ensuring consistent and efficient spraying quality. When the wooden board is fed into the clamping mechanism 5 via the conveyor mechanism 2, the clamping mechanism 5 quickly responds and securely clamps the board. Subsequently, the lifting mechanism 6 activates, lifting the board into the spray chamber 4. At this point, the spray mechanism 8 begins spraying one side of the board according to a preset program.After spraying one side, the turnover mechanism 7 is started to turn over the wood board to the other side, and the spraying mechanism 8 sprays again. After spraying both sides, the lifting mechanism 6 slowly lowers the wood board and releases it to the conveying mechanism 2, and the wood board continues to be conveyed to the next process for subsequent processing, such as drying, curing, etc. The entire device realizes automatic operation through a highly integrated control system, reduces manual intervention, improves production efficiency, and at the same time ensures the consistency and stability of the spraying quality, which is an indispensable efficient production equipment in the modern wood processing industry.

[0024] In combination with Figure 2 , Figure 3 , Figure 4 and Figure 5 , the lifting mechanism 6 includes a fixed frame 61 arranged on the workbench 1, the fixed frame 61 is symmetrically provided with a first servo motor 62, the output end of the first servo motor 62 is connected with a threaded rod 63, and the threaded rod 63 is movably connected with a movable block 64. In combination with Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, sliding slots 611 are defined on both sides of the fixed frame 61, and sliding blocks 641 are positioned on both sides of the movable block 64 to match the sliding slots 611. Specifically, the lifting mechanism 6 ensures smooth lifting and lowering of the wooden board during the spraying process. The lifting mechanism 6 primarily comprises the fixed frame 61, a first servo motor 62, a threaded rod 63, the movable block 64, and key components such as the sliding slots 611 and the sliding blocks 641. As the main support structure of the lifting mechanism 6, the fixed frame 61 is mounted on the workbench 1, taking into account stability and load-bearing capacity. The fixed frame 61 is typically constructed of high-strength steel or alloy materials to ensure it resists deformation or damage under long-term, high-load operation. The first servo motors 62 are symmetrically positioned on either side of the fixed frame 61, providing power to the lifting mechanism 6. Through a built-in encoder, the first servo motor 62 can monitor and provide feedback on its operating status in real time, ensuring accurate and stable lifting and lowering. The threaded rod 63 is connected to the output terminal of the first servo motor 62, and the rotation of the first servo motor 62 drives the rotation of the threaded rod 63. The movable block 64 is movably connected to the threaded rod 63, and the lifting and lowering motion is achieved through the rotation of the threaded rod 63. Sliding blocks 641 are provided on both sides of the movable block 64, matching the sliding grooves 611. These sliding blocks 641 not only limit the lateral movement of the movable block 64 during the lifting process, but also improve the smoothness and precision of the lifting process. The sliding grooves 611 are provided on both sides of the fixed frame 61 and match the sliding blocks 641. This not only ensures the stability and reliability of the movable block 64 during the lifting process, but also reduces friction and wear, extending the service life of the lifting mechanism 6. During the operation of the lifting mechanism 6, the first servo motor 62 is activated and drives the threaded rod 63 to rotate. As the threaded rod 63 rotates, the movable block 64 is lifted and lowered by the action of the threads. Simultaneously, the sliding blocks 641 slide in the sliding grooves 611, ensuring a smooth and reliable lifting and lowering process for the movable block 64. When the wooden board needs to be lifted, the movable block 64 is connected to the clamping mechanism 5 via a connecting device, smoothly lifting the board into the spray chamber 4. When the spraying is completed, the movable block 64 is activated again, and the wood board is smoothly lowered to the conveyor mechanism 2 to continue the next process. The design of the lifting mechanism 6 fully considers stability and reliability. Through high-precision processing and the selection of high-quality materials, its stability and durability under long-term high-load operation are ensured.

[0025] Combine Figure 1 、 Figure 3 、 Figure 4 and Figure 5As shown, the turning mechanism 7 includes a rotating motor 71 mounted on the movable block 64. A clamping block 72 is fixedly connected to the output end of the rotating motor 71. Specifically, the turning mechanism 7 is responsible for flipping the wooden board from one side to the other during the spraying process to ensure uniform spraying on both sides. The turning mechanism 7 primarily consists of two core components: the rotating motor 71 and the clamping block 72, which ensure smooth turning of the wooden board. The rotating motor 71, the power source of the turning mechanism 7, is mounted on the movable block 64 and moves as the movable block 64 is raised or lowered. The clamping block 72 is fixedly connected to the output end of the rotating motor 71. The design of the clamping block 72 takes into account factors such as the size, shape, and weight of the wooden board to ensure a secure grip without damaging the surface. A layer of soft cushioning material, such as rubber or silicone, may be applied to the surface of the clamping block 72 to reduce friction and damage to the wooden board. The shape and size of the clamping block 72 are typically adjusted according to the specifications of the wooden board. It may have various shapes, such as flat, curved, or V-shaped, to accommodate wooden boards of varying thicknesses and widths. Furthermore, the clamping block 72 can adjust its position and angle to accommodate planks of varying lengths. During operation of the flipping mechanism 7, after the movable block 64 lifts the plank into the spray chamber 4, the rotary motor 71 activates and rotates the clamping block 72. The clamping block 72 securely grips one end of the plank, and as the rotary motor 71 rotates, the plank flips. To ensure a smooth and safe flipping process, the flipping mechanism 7 is typically equipped with safety devices such as sensors and limit switches. Furthermore, the design of the flipping mechanism 7 must consider its coordination with other components. For example, during the lifting and lowering of the movable block 64, the flipping mechanism 7 must remain stationary to avoid interfering with the gripping and flipping of the plank. Therefore, when designing the control system, the motor's operating mode and timing must be appropriately configured to ensure coordinated coordination between the various components. The flipping mechanism 7 achieves smooth flipping and uniform spraying of the plank through the coordinated operation of the rotary motor 71 and the clamping block 72.

[0026] Combine Figure 1 、 Figure 3 、 Figure 4 and Figure 5As shown, the clamping mechanism 5 includes a second servo motor 51 mounted on the clamping block 72, and the output end of the second servo motor 51 is fixedly connected to the lower pressure plate 52, and the lower pressure plate 52 is provided with a rubber gasket. Specifically, the clamping mechanism 5 is responsible for stably clamping the wooden board during the spraying process, ensuring that it does not move or slip during flipping and spraying. The clamping mechanism 5 mainly consists of three key parts: the second servo motor 51, the lower pressure plate 52, and the rubber gasket, which achieves a firm clamping and stable support of the wooden board. The second servo motor 51 is the power source of the clamping mechanism 5. It is mounted on the clamping block 72 and moves with the rotation of the flipping mechanism 7. The second servo motor 51 has the characteristics of high precision, high response speed and high reliability, and can accurately control the lifting and lowering movement of the lower pressure plate 52. Through the built-in encoder, the servo motor can monitor and feedback its operating status in real time, ensuring the accuracy and stability of the clamping action. The lower pressure plate 52 is the actuator of the clamping mechanism 5 and is fixedly connected to the output end of the second servo motor 51. The lower pressing plate 52 ensures a secure grip on the wood board without damaging its surface. It is typically made of high-strength, wear-resistant materials, such as alloy steel or stainless steel, to ensure its load-bearing capacity and durability. A rubber gasket is placed on the surface of the lower pressing plate 52 that contacts the wood board. The rubber gasket's primary function is to reduce friction and damage to the wood board's surface caused by the lower pressing plate 52, while also increasing the stability and reliability of the clamping mechanism. The rubber gasket is typically made of a soft, wear-resistant, and elastic material, such as natural rubber, synthetic rubber, or silicone. During operation of the clamping mechanism 5, after the turning mechanism 7 flips the wood board to the designated position, the second servo motor 51 is activated and drives the lower pressing plate 52 downward. The lower pressing plate 52 maintains close contact with the wood board's surface through the rubber gasket, providing a secure grip. During the spraying process, the clamping mechanism 5 remains stationary, ensuring that the board does not move or slip during flipping and spraying. When spraying is complete, the second servo motor 51 is activated again, driving the lower pressing plate 52 upward, releasing the board for the next step. In addition, the design of the clamping mechanism 5 also needs to consider its cooperation with other components. For example, during the rotation of the turning mechanism 7, the clamping mechanism 5 needs to maintain a certain clamping force to ensure that the wooden board will not slide due to inertia.

[0027] Combine Figure 1 、 Figure 2 、 Figure 4 and Figure 6 As shown, the spraying mechanism 8 includes a spraying frame 81 arranged at the top of the spraying room 4, a track groove 82 is provided on the spraying frame 81, and an electrostatic spray gun 83 is connected to the track groove 82. Figure 1 、 Figure 2 、 Figure 3 and Figure 4As shown, a powder tank 9 is installed at the top of the spray chamber 4 and is connected to an electrostatic spray gun 83 via a pipe. Specifically, the spray mechanism 8 is responsible for evenly spraying the powder coating onto the surface of the wooden board. The spray mechanism 8 primarily comprises a spray frame 81, a track trough 82, an electrostatic spray gun 83, and a powder tank 9, achieving efficient and uniform spraying. The spray frame 81 is the main structure of the spray mechanism 8 and is located at the top of the interior of the spray chamber 4. The track trough 82 runs along the length of the spray frame 81 and is used to mount and secure the electrostatic spray gun 83. The track trough 82 ensures that the electrostatic spray gun 83 can move smoothly and accurately within the track trough 82. The track trough 82 is also made of wear-resistant and corrosion-resistant materials to reduce friction and wear, thereby extending its service life. The electrostatic spray gun 83 is mounted within the track trough 82 and moves to achieve uniform spraying of the wooden board. The electrostatic spray gun 83 utilizes the principle of static electricity to adsorb the powder coating onto the surface of the wooden board, forming a uniform coating. The electrostatic spray gun 83 has the advantages of high precision, high efficiency and low pollution, which can greatly improve the quality and efficiency of the spraying operation. The powder box 9 is installed on the top of the spraying room 4 and is connected to the electrostatic spray gun 83 by a pipeline. The powder box 9 is used to store and supply powder coating, and its capacity is usually customized according to the needs of the spraying operation. The powder box 9 is also equipped with auxiliary equipment such as a stirrer and a filter to ensure the uniformity and purity of the powder coating. During the spraying operation, the powder coating is transported to the electrostatic spray gun 83 through a pipeline, and the electrostatic spray gun 83 sprays it onto the surface of the wooden board.

[0028] Combine Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, a control mechanism 10 is provided on the workbench 1. Specifically, the workbench 1 provides a stable and flat working surface for placing and supporting the wooden board to be sprayed. The control mechanism 10 is responsible for controlling and regulating the operation of the entire spraying device 3. The control mechanism 10 generally includes a control panel or a touch screen, on which various control buttons, indicator lights and display screens are provided. Through these control elements, the operator can conveniently set and adjust the spraying parameters, such as spraying speed, spraying amount, flip angle, etc. The control mechanism 10 can automatically adjust the spraying parameters or activate corresponding protective measures to ensure the stability and quality of the spraying operation.

[0029] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and inventive concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A self-turning continuous spraying device for powder spraying on a wood panel, comprising a workbench (1), a transmission mechanism (2) provided on the workbench (1), a spraying device (3) provided above the middle section of the transmission mechanism (2), and characterized in that: The spraying device (3) comprises a spraying chamber (4) arranged on a workbench (1), wherein a clamping mechanism (5), a lifting mechanism (6), a turning mechanism (7) and a spraying mechanism (8) are arranged inside the spraying chamber (4); The clamping mechanism (5) is used to clamp and fix the wooden board transported by the transport mechanism (2); The lifting mechanism (6) is used to lift the clamped and fixed wooden board into the interior of the spraying room (4); The turning mechanism (7) is used to turn the wooden board with one side sprayed to the other side; The spraying mechanism (8) is used for spraying the surface of the wooden board; When the conveying mechanism (2) conveys the wooden board to the clamping mechanism (5), the clamping mechanism (5) fixes and clamps the wooden board. At this time, the lifting mechanism (6) lifts the clamping mechanism (5) upward to the inside of the spraying room (4). The spraying mechanism (8) sprays one side of the wooden board. After the spraying is completed, the turning mechanism (7) turns the wooden board to the other side. The spraying mechanism (8) sprays the turned side of the wooden board again. After the spraying is completed on both sides, the lifting mechanism (6) lowers the wooden board out of the spraying room (4) and conveys it to the next process through the conveying mechanism (2).

2. A self-turning continuous spraying device for powder coating of wooden boards according to claim 1, characterized in that: The lifting mechanism (6) comprises a fixed frame (61) arranged on the workbench (1), a first servo motor (62) is symmetrically arranged on the fixed frame (61), an output end of the first servo motor (62) is connected to a threaded rod (63), and a movable block (64) is movably connected to the threaded rod (63).

3. A self-turning continuous spraying device for powder spraying on wooden boards according to claim 2, characterized in that: Sliding grooves (611) are provided on both sides of the fixed frame (61), and sliding blocks (641) matching the sliding grooves (611) are provided on both sides of the movable block (64).

4. A self-turning continuous spraying device for powder coating of wooden boards according to claim 3, characterized in that: The turning mechanism (7) comprises a rotating motor (71) mounted on the movable block (64), and an output end of the rotating motor (71) is fixedly connected to a clamping block (72).

5. A self-turning continuous spraying device for powder spraying on wooden boards according to claim 4, characterized in that: The clamping mechanism (5) comprises a second servo motor (51) mounted on the clamping block (72); an output end of the second servo motor (51) is fixedly connected to a lower pressing plate (52); and a rubber gasket is provided on the lower pressing plate (52).

6. A self-turning continuous spraying device for powder spraying on wooden boards according to claim 5, characterized in that: The spraying mechanism (8) comprises a spraying frame (81) arranged on the top of the spraying room (4); a track groove (82) is arranged on the spraying frame (81); and an electrostatic spray gun (83) is connected to the track groove (82).

7. A self-turning continuous spraying device for powder coating of wooden boards according to claim 6, characterized in that: A powder box (9) is installed on the top of the spraying room (4), and the powder box (9) is connected to the electrostatic spray gun (83) through a pipeline.

8. A self-turning continuous spraying device for powder coating of wooden boards according to claim 7, characterized in that: A control mechanism (10) is provided on the workbench (1).