Pre-paint coated veneer production equipment and use method

Abstract

The invention discloses pre-paint-coated veneer production equipment which comprises a rack, channels used for wood veneers to enter and exit for pre-paint treatment are arranged on the rack, a treatment area used for pre-paint treatment of the wood veneers is formed between the channels, a UV roller used for coating UV glue on the surfaces of the wood veneers is arranged above the treatment area, and the UV roller is used for coating UV glue on the surfaces of the wood veneers. The paint roller is used for coating paint, and a veneer fixing mechanism and a ventilation heating mechanism are correspondingly arranged in the processing area; paint coating and ventilation heating curing can be carried out synchronously, so that the production time is effectively shortened, the problems of paint flowing and the like caused by transferring of the wood veneer between the paint coating procedure and the heating curing procedure are solved, the paint coating uniformity of the surface of the wood veneer is guaranteed, and the production quality of the coated wood veneer is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of veneer production, and particularly relates to a pre-painted coated veneer production device and a use method thereof. Background Art

[0002] In the wood processing industry, veneer, as a common decorative material, is widely used in fields such as furniture, decorative veneer panels, wooden doors, and floor fabrics. It can be divided into composite veneer, natural veneer, dyed veneer, etc. Composite veneer is also called coated veneer. Existing coated veneer is formed by combining veneer and non-woven fabric. However, since most of the veneer on the market is not sprayed with paint, the oil spraying process after the veneer is coated on the product is complex and cumbersome, the production efficiency is low, and a large amount of hazardous waste water and gas emissions will be generated during the production process, causing environmental pollution. In contrast, adopting the pre-painted coated veneer production process can significantly reduce production costs, reduce environmental pollution, and improve production efficiency.

[0003] In the existing pre-painted coated veneer production process, a mode of separating paint coating and curing is adopted. During the paint coating process, the conventional roller structure cannot ensure stable support for the veneer, and a single flat surface is not convenient for the transportation and transfer of the veneer, resulting in uneven paint coating thickness of the veneer; when the paint coating and curing are separated, the process time interval is increased, and at the same time, problems such as paint flowing and uneven drying will occur during the transportation process, affecting the production quality of the coated veneer. Summary of the Invention

[0004] Technical Objective: Aiming at the deficiencies existing in the pre-painting processing of existing coated veneer, the present invention discloses a pre-painted coated veneer production device and a use method thereof that can ensure the paint coating quality of the veneer and synchronously cure during the coating process, improving the production efficiency of the veneer.

[0005] Technical Solution: To achieve the above technical objective, the present invention adopts the following technical solution: A pre-painted coated veneer production device includes a frame. A channel for pre-painting the entry and exit of the veneer is provided on the frame, and a processing area for pre-painting the veneer is formed between the channels. A UV roller for coating UV glue on the surface of the veneer and a paint roller for coating paint are provided above the processing area. A veneer fixing mechanism and a ventilation heating mechanism are correspondingly arranged in the processing area; after the veneer is transported to the processing area, the end of the veneer is fixed by the veneer fixing mechanism. The UV roller first coats a layer of UV glue on the veneer, levels the surface of the veneer, and then the paint roller coats paint on the surface of the veneer. The ventilation heating mechanism is used to heat and cure the paint when the veneer is being painted.

[0006] Preferably, the processing area of the present invention includes a plurality of support plates, which are arranged perpendicular to the conveying direction of the veneer, and the two ends of the support plates are rotatably connected to the frame. A driving mechanism for driving the support plates to rotate is arranged on the frame. The support plates have a supporting surface for forming a flat supporting surface to support the veneer and a conveying surface adjacent to the supporting surface, and the conveying surface is provided with a ball bearing for cooperating with the veneer.

[0007] Preferably, the present invention drives the support plate to rotate to a state with the conveying surface facing upward through a driving mechanism, and the height of the conveying surface corresponds to the height of the channel. When the veneer is conveyed, the balls on the conveying surface assist the veneer to move forward in the processing area. After the veneer completely enters the processing area and completes the conveyance, the support plate rotates to a state with the support surface facing upward, and the support surfaces of several support plates form a flat support surface to support the veneer.

[0008] Preferably, the support plate of the present invention is provided with a slider which slides in a direction parallel to the support surface, the end of the slider is embedded in the support plate and connected to the support plates by an elastic mechanism, the other end of the slider adopts a curved surface structure to form a conveying surface, and the end of the support plate away from the slider is provided with an arc-shaped groove which matches the arc-shaped surface structure of the slider. When the driving mechanism drives the support plate to rotate to a state where the support surface is facing upward, the end of the slider of the support plate is embedded in the arc-shaped groove of another adjacent support plate, so that the support surfaces of several support plates jointly form continuous support for the veneer.

[0009] Preferably, the elastic mechanism of the present invention comprises a spring arranged between the slider and the support plate, one end of the spring is fixed in the support plate, and the other end is connected to the end of the slider, and the movement of the end of the slider in the support plate is achieved by the spring.

[0010] Preferably, the driving mechanism of the present invention includes a hollow rotating shaft arranged at the end of the support plate near the side where the frame is located, and a gear fixed on the hollow rotating shaft. A transmission rack is meshed below the gear, and the transmission rack is arranged along the conveying direction of the veneer. A linear power source is connected to the end of the transmission rack, and the transmission rack is driven to move by the linear power source, driving the gear and the support plate connected to the gear through the hollow rotating shaft to rotate, thereby switching the supporting surface and the conveying surface of the support plate.

[0011] Preferably, the ventilation and heating mechanism of the present invention includes a fan for providing heating gas, and the air outlet of the fan is connected to the hollow rotating shaft at one end of the support plate through an air distribution pipe arranged on the frame, and an air cavity for the circulation of heating gas is correspondingly opened inside the support plate. The heating gas enters the support plate from the hollow rotating shaft at one end, and then flows out from the hollow rotating shaft at the other end of the support plate. The heating gas heats the support plate during the flow process.

[0012] Preferably, the frame of the present invention is symmetrically provided with windshields having an arc-shaped cross-section at the ends of the hollow rotating shaft through which the heating gas flows out. The blown heating gas is refluxed to the upper surface of the veneer through the windshields, and the heating gas flows through the veneer surface for heating and then is discharged.

[0013] Preferably, the veneer fixing mechanism of the present invention includes vacuum adsorption holes provided at the end of the processing area along the conveying direction of the veneer. The vacuum adsorption holes are connected to a vacuum generator to adsorb and fix the veneer above the vacuum adsorption holes.

[0014] The present invention discloses a method of using a pre-painted veneer production device based on the above. The veneer is conveyed from the channel of the frame into the processing area of the frame. The processing area assists in the conveyance of the veneer and provides stable support for the veneer. After the position of the veneer is fixed by the veneer fixing mechanism in the processing area, a layer of UV glue is first coated on the veneer surface by a UV roller. The surface of the veneer to be painted is leveled by the UV glue. After the UV glue is irradiated and cured, a paint roller is used to coat paint on the veneer surface. During the paint coating process, the ventilation heating mechanism heats and ventilates the processing area to accelerate the drying and curing of the paint.

[0015] Beneficial effects: The pre-painted veneer production device and the method of using the same disclosed by the present invention have the following beneficial effects: 1. The paint coating and ventilation heating curing of the present invention can be carried out simultaneously, thereby effectively shortening the production time. By avoiding problems such as paint flow caused by the transfer of the veneer between the paint coating process and the heating and curing process, the uniformity of the paint coating on the veneer surface is ensured, and the production quality of the coated veneer is guaranteed.

[0016] 2. The present invention coats UV glue before coating the veneer with paint. On the one hand, the defects on the veneer surface are filled by the UV glue to ensure the flatness of the veneer surface. At the same time, compared with the method of directly coating paint on the veneer surface, the present invention can improve the adhesion effect of the paint and avoid affecting the coating process due to poor adhesion between the paint and the veneer.

[0017] 3. The processing area of the present invention is formed by a rotatable support plate. The support surface of the support plate can stably support the veneer, and the conveying surface can assist the movement of the veneer during the veneer conveying process, thereby reducing the difficulty of veneer conveying and improving the production efficiency of the pre-painted veneer.

[0018] 4. Sliders are provided at the ends of the support plates of the present invention, and the sliders slide along a direction parallel to the support surface, so that when the support plates are at an angle with the support surface upward, the adjacent ends of the support plates can be closely docked, thereby ensuring continuous support for the veneer, improving the support effect, and avoiding uneven paint coating in local areas of the veneer due to gaps.

[0019] 5. The support plate of the present invention is rotated by the cooperation of a rack and a gear, which can synchronously rotate the support plates in the processing area, thus simplifying the structure of the production equipment.

[0020] 6. The present invention uses a hollow shaft to connect with the support plate, and the ventilation and heating mechanism is connected with the hollow shaft through a gas distribution pipe to transport the heating gas. With the provided wind baffle, while applying paint to the veneer, the upper and lower surfaces of the veneer can be heated simultaneously, thereby improving the curing rate of the paint and the uniformity of heating.

[0021] 7. The present invention cleverly utilizes the structures such as the support plate of the production equipment itself to achieve the heating and ventilation of the paint, without the need to separately set up additional structures, which can reduce the equipment cost, simplify the structure at the same time, and facilitate operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art.

[0023] Figure 1 Schematic diagram of the overall structure of the production equipment of the present invention; Figure 2 Schematic diagram of the structure of the processing area of the present invention in the state of supporting the veneer; Figure 3 Schematic diagram of the processing area of the present invention in the state of conveying the veneer; Figure 4 Schematic diagram of the cooperation of the end of the support plate in the state of supporting the veneer of the present invention; Figure 5 Schematic diagram of the gas flow direction of the ventilation and heating mechanism of the present invention; Wherein, 1 - frame, 2 - channel, 3 - processing area, 4 - UV roller, 5 - paint roller, 6 - support plate, 7 - support surface, 8 - conveying surface, 9 - ball, 10 - slider, 11 - arc-shaped groove, 12 - hollow rotating shaft, 13 - gear, 14 - driving rack, 15 - gas distribution pipe, 16 - wind baffle, 17 - vacuum adsorption hole, 18 - spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] Now, reference will be made in detail to the embodiments of the present disclosure, one or more examples of which are set forth below. Each embodiment and example is provided by way of explanation of the apparatus, composition, and materials of the present disclosure, and not by way of limitation. On the contrary, the following description provides a convenient illustration for implementing the exemplary embodiments of the present disclosure. In fact, it will be apparent to those skilled in the art that various modifications and variations can be made in the teachings of the present disclosure without departing from the scope or spirit of the present disclosure.

[0025] As Figures 1-5As shown in the figure, the present invention discloses a production device for pre-painted veneer, which includes a frame 1. A channel 2 for pre-painting the entry and exit of the veneer is provided on the frame 1, and a treatment area 3 for pre-painting the veneer is formed between the channels 2. The transfer of the veneer can be realized by a conveying structure such as a conveyor belt at the channel 2. Above the treatment area 3, a UV roller 4 for coating UV glue on the surface of the veneer and a paint roller 5 for coating paint are provided. A veneer fixing mechanism and a ventilation and heating mechanism are correspondingly arranged in the treatment area 3. After the veneer is conveyed to the treatment area 3, the end of the veneer is fixed by the veneer fixing mechanism. The UV roller 4 first coats a layer of UV glue on the veneer. After the surface of the veneer is leveled, the paint roller 5 then coats paint on the surface of the veneer. The ventilation and heating mechanism is used to heat and cure the paint when the paint is being coated on the veneer.

[0026] In the present invention, the painting and heating, ventilation and curing of the veneer are completed in the treatment area 3, which saves the process time and at the same time avoids problems such as paint flow caused by the transfer of the veneer, ensuring the uniformity of the paint coating on the surface of the veneer. To ensure the effective and stable support of the veneer and improve the paint coating quality, as Figure 2 and Figure 3 shown, the treatment area 3 of the present invention includes a plurality of support plates 6. The support plates 6 are arranged perpendicular to the conveying direction of the veneer. Both ends of the support plates 6 are rotatably connected to the frame 1. A driving mechanism for driving the support plates 6 to rotate is provided on the frame 1. The support plates 6 have a support surface 7 for forming a flat support surface to support the veneer and a conveying surface 8 adjacent to the support surface 7. The conveying surface 8 is provided with balls 9 for cooperating with the veneer. The veneer fixing mechanism includes vacuum adsorption holes 17 arranged at the end of the treatment area 3 along the conveying direction of the veneer. The vacuum adsorption holes 17 are connected to a vacuum generator to adsorb and fix the veneer above the vacuum adsorption holes 17. In the embodiment of the present invention, the coating operations of the UV roller 4 and the paint roller 5 can be directly realized by using mature equipment in the prior art, which does not affect the effects produced by the structural design of the treatment area 3 of the present invention.

[0027] In the present invention, the driving mechanism drives the support plate 5 to rotate to a state where the conveying surface 8 faces upward, and the height of the conveying surface 8 corresponds to the height of the channel 2. When conveying veneer, the balls 9 on the conveying surface 8 assist the veneer to move forward in the processing area 3. After the veneer completely enters the processing area 3 and the conveying is completed, the support plate 6 rotates to a state where the supporting surface 7 faces upward, and the supporting surfaces 7 of several support plates 6 form a flat supporting surface to support the veneer, and it can switch states along with the veneer painting process. The driving mechanism of the present invention includes a hollow rotating shaft 12 provided at the end of the support plate 6 near the side where the frame is located and a gear 13 fixed on the hollow rotating shaft 12. A transmission rack 14 is engaged below the gear 13. The transmission rack 14 is arranged along the conveying direction of the veneer and is slidably connected to the frame 1. A linear power source, such as a cylinder or a hydraulic cylinder, etc., is connected to the end of the transmission rack 14. The transmission rack 14 is driven to move by the linear power source, driving the gear 13 and the support plate 6 connected to the gear 13 through the hollow rotating shaft 12 to rotate, so as to switch the supporting surface 7 and the conveying surface 8 of the support plate 16. The form of cooperation between the gear 13 and the transmission rack 14 is used, which is convenient to operate, and at the same time simplifies the rotational drive of the support plate 16, realizing the synchronous rotation of several support plates 16.

[0028] Meanwhile, since the support plate 6 needs to rotate for state switching, therefore, in order to avoid rotational interference between adjacent support plates 6, a gap needs to be left to avoid collision. Although this structure can still provide a large supporting area for the veneer, there will still be a gap at the end of adjacent support plates 6, resulting in a lack of support for the veneer at this position, which will affect the uniformity of the paint during the paint coating process. For this reason, as Figure 4As shown, a slider 10 is slidably arranged on the support plate 6 of the present invention in a direction parallel to the support surface 7. The end of the slider 10 is embedded in the support plate 6 and is connected to the support plate 6 through an elastic mechanism. The elastic mechanism of the present invention includes a spring 18 arranged between the slider 10 and the support plate 6. One end of the spring 18 is fixed in the support plate 6, and the other end is connected to the end of the slider 10. The telescopic movement of the end of the slider 10 in the support plate 6 is realized through the spring 18. To prevent the slider 10 from detaching, the end of the slider 10 cooperating with the support plate 6 can be set into a T-shaped structure, and the end with a larger diameter is correspondingly located in the chute opened on the support plate 6. The chute cooperates with the step surface of the T-shaped structure to prevent the slider 10 from accidentally detaching. In this structure, the spring 18 provides a certain thrust to the slider 10 to ensure the stability and uniformity of the position of the slider 10. At the same time, since the purpose of designing the slider 10 of the present invention is to slide into the support plate 6 under the action of an external force, it is also possible to prevent the slider 10 from detaching only by relying on the acting force generated by the connection of the spring 18. In this structure, the spring 18 is in a free state and provides a corresponding acting force according to the position change of the slider 10. When the conveying surface 8 is upward, the slider 10 is only affected by gravity, and the spring 18 provides elastic support to keep the slider 10 balanced.

[0029] The end of the other end of the slider 10 adopts an arc surface structure to form a conveying surface 8. An arc-shaped groove 11 matching the arc surface structure of the slider 10 is opened at the end of the support plate 6 away from the end where the slider 10 is located. When the driving mechanism drives the support plate 6 to rotate to the state where the support surface 7 is upward, the end of the slider 10 of the support plate 6 is embedded in the arc-shaped groove 11 of an adjacent support plate, so that the support surfaces of several support plates 6 jointly form a continuous support for the veneer. When the support plate 6 is in the state where the support surface 7 is upward, the slider 10 is pushed into the interior of the support plate 6 under the action of the arc-shaped groove 11, and the spring 18 is in a compressed state. The elastic telescopic movement of the slider 10 can compensate for the gap between the end brackets of adjacent support plates, so that the support surface 7 of the support plate 6 forms a support effect similar to a continuous plane, ensuring the quality of paint coating on the veneer surface.

[0030] The ventilation and heating mechanism of the present invention includes a fan for providing heating gas. The air outlet of the fan is communicated with a hollow rotating shaft 12 at one end of the support plate 6 through an air distribution pipe 15 arranged on the frame 1. A rotating joint is arranged at the connection between the hollow rotating shaft 12 and the air distribution pipe 15 to ensure the conveyance of heating gas during the rotation of the hollow rotating shaft 12. A heating device can be arranged at the air outlet to control the gas temperature to ensure the subsequent heating effect. An air cavity for the circulation of heating gas is correspondingly opened inside the support plate 6, such as Figure 5As shown, the heating gas enters the support plate 6 from the hollow rotating shaft 12 at one end, and then flows out from the hollow rotating shaft 12 at the other end of the support plate 6. During the flowing process, the heating gas heats the support plate 6. At the end of the hollow rotating shaft 12 from which the heating gas flows out, the frame 1 of the present invention is symmetrically provided with windshields 16 having an arc-shaped cross-section, so that the blown heating gas flows back to the upper surface of the veneer, and the heating gas is discharged after flowing through the veneer surface.

[0031] The present invention also discloses a method for using the pre-painted veneer production equipment based on the above. The veneer is conveyed from the channel of the frame into the processing area of the frame. The conveying in the processing area assists the veneer to enter and provides stable support for the veneer. After the position of the veneer is fixed by the veneer fixing mechanism in the processing area, a layer of UV glue is first coated on the surface of the veneer by a UV roller. The surface of the veneer to be painted is leveled by the UV glue. After the UV glue is irradiated and cured, a paint roller is used to coat paint on the surface of the veneer. During the paint coating process, the ventilation and heating mechanism heats and ventilates the processing area to accelerate the drying and curing of the paint.

[0032] When the veneer is conveyed, at the channel 2, a belt pulley is used to drive the conveyor belt to move for the conveyance of the veneer. It can also be replaced by other mature conveying structures in the existing technologies. During the entry of the veneer, the support plate 6 is in the state where the conveying surface 8 is upward, so that the lower surface of the veneer can cooperate with the balls 9 and move within the range of the processing area 3. After moving into place, the support plate 6 rotates to the state where the support surface 7 is upward, and the veneer fits with the support surface 7, and the end is positioned and fixed by the veneer fixing mechanism to ensure that the veneer does not move during the coating of the UV glue and the paint.

[0033] The above are only the preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and retouches can be made, and these improvements and retouches should also be regarded as the protection scope of the present invention.

Claims

1. A pre-painted veneer production device, characterized in that, It includes a frame (1), on which a channel (2) for pre-painting the entry and exit of veneer is provided. A processing area (3) for pre-painting the veneer is formed between the channels (2). Above the processing area (3), a UV roller (4) for coating UV glue on the surface of the veneer and a paint roller (5) for coating paint are provided. A veneer fixing mechanism and a ventilation heating mechanism are correspondingly arranged in the processing area (3). After the veneer is transported to the processing area (3), the end of the veneer is fixed by the veneer fixing mechanism. The UV roller (4) first coats a layer of UV glue on the veneer. After the surface of the veneer is flattened, the paint roller (5) then coats paint on the surface of the veneer. The ventilation heating mechanism is used to heat and cure the paint when the veneer is being painted.

2. The production equipment for pre-painted veneer according to claim 1, characterized in that, The processing area (3) includes a number of support plates (6). The support plates (6) are arranged perpendicular to the veneer conveying direction. The two ends of the support plates (6) are rotatably connected to the frame (1). A driving mechanism for driving the support plates (6) to rotate is provided on the frame (1). The support plates (6) have a support surface (7) for forming a flat support surface to support the veneer and a conveying surface (8) adjacent to the support surface (7). The conveying surface (8) is provided with balls (9) for cooperating with the veneer.

3. The pre-painted veneer production equipment according to claim 2, characterized in that, The driving mechanism drives the support plate (5) to rotate to a state where the conveying surface (8) is upward. The height of the conveying surface (8) corresponds to the height of the channel (2). When the veneer is being conveyed, the balls (9) on the conveying surface (8) assist the veneer to move forward in the processing area (3). After the veneer completely enters the processing area (3) and the conveying is completed, the support plate (6) rotates to a state where the support surface (7) is upward. The support surfaces (7) of a number of support plates (6) form a flat support surface to support the veneer.

4. A pre-painted veneer production device according to claim 2 or 3, characterized in that, Sliders (10) are slidably arranged on the support plates (6) along the direction parallel to the support surface (7). The ends of the sliders (10) are embedded in the support plates (6) and are connected to the support plates (6) through an elastic mechanism. The other ends of the sliders (10) adopt an arc-shaped structure to form the conveying surface (8). An arc-shaped groove (11) matching the arc-shaped structure of the slider (10) is provided at the end of the support plate (6) away from the slider (10). When the driving mechanism drives the support plate (6) to rotate to a state where the support surface (7) is upward, the end of the slider (10) of the support plate (6) is embedded in the arc-shaped groove (11) of an adjacent support plate, so that the support surfaces of a number of support plates (6) jointly form a continuous support for the veneer.

5. A pre-painted veneer production device according to claim 4, characterized in that, The elastic mechanism includes a spring (18) arranged between the slider (10) and the support plate (6). One end of the spring (18) is fixed in the support plate (6), and the other end is connected to the end of the slider (10). The movement of the end of the slider (10) in the support plate (6) is realized through the spring (18).

6. The pre-painted veneer production equipment according to claim 2, characterized in that, The driving mechanism includes a hollow rotating shaft (12) arranged at the end of the support plate (6) close to the side where the frame is located, and a gear (13) fixed on the hollow rotating shaft (12). A transmission rack (14) is engaged below the gear (13). The transmission rack (14) is arranged along the conveying direction of the veneer. A linear power source is connected to the end of the transmission rack (14). The linear power source drives the transmission rack (14) to move, driving the gear (13) and the support plate (6) connected to the gear (13) through the hollow rotating shaft (12) to rotate, so as to switch the support surface (7) and the conveying surface (8) of the support plate (6).

7. The production equipment for pre-painted veneer according to claim 6, characterized in that, The ventilation and heating mechanism includes a blower for providing heating gas. The air outlet of the blower is communicated with the hollow rotating shaft (12) at one end of the support plate (6) through an air distribution pipe (15) arranged on the frame (1). An air cavity for the circulation of heating gas is correspondingly formed inside the support plate (6). The heating gas enters the support plate (6) from the hollow rotating shaft (12) at one end, and then flows out from the hollow rotating shaft (12) at the other end of the support plate (6). The heating gas heats the support plate (6) during the flowing process.

8. The production equipment for pre-painted veneer according to claim 7, characterized in that, The frame (1) is symmetrically provided with wind baffle plates (16) with an arc-shaped cross section at the end of the hollow rotating shaft (12) where the heating gas flows out. The blown heating gas is made to flow back to the upper surface of the veneer through the wind baffle plates (16), and the heating gas is discharged after flowing through the veneer surface for heating.

9. The production equipment for pre-painted veneer according to claim 1, characterized in that, The veneer fixing mechanism includes vacuum adsorption holes (17) arranged at the end of the processing area (3) along the conveying direction of the veneer. The vacuum adsorption holes (17) are connected to a vacuum generator to adsorb and fix the veneer above the vacuum adsorption holes (17).

10. The method of using the pre-painted veneer production equipment according to any one of claims 1-9, characterized in that, The veneer is conveyed from the channel of the frame into the processing area of the frame. The processing area assists in the conveyance of the veneer and provides stable support for the veneer. After the position of the veneer is fixed by the veneer fixing mechanism in the processing area, a layer of UV glue is first coated on the veneer surface by a UV roller. The surface of the veneer to be painted is leveled by the UV glue. After the UV glue is irradiated and cured, a paint roller is used to coat paint on the veneer surface. During the paint coating process, the ventilation and heating mechanism heats and ventilates the processing area to accelerate the drying and curing of the paint.

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