A hot roller press wood veneer composite machine

Abstract

This invention belongs to the field of wood processing technology, specifically disclosing a hot roller pressing veneer composite machine, including a frame. Support plates are connected to both sides of the upper end of the frame. Drive rollers are evenly connected between two support plates. Connecting rods are connected to both ends of the two support plates. Support rollers are evenly connected between two connecting rods and between two other connecting rods. A hot pressing mechanism is connected to one side of the upper end of the two support plates. A frame is connected to one side of the upper end of the frame. A veneer guiding mechanism is connected to one side of the upper end of the frame. This invention achieves precise guidance and tension control of the veneer conveying path through the synergistic effect of the veneer guiding mechanism and the automatic smoothing mechanism, effectively preventing the veneer from shifting, tilting, or loosening during conveying, and ensuring the alignment accuracy and initial bonding quality between the veneer and the substrate.

Description

Technical Field

[0001] This invention belongs to the field of wood processing, and specifically discloses a hot roller pressing wood veneer composite machine. Background Technology

[0002] Wood veneer, a key material for surface decoration and performance optimization of boards, is typically made from natural wood or engineered wood products through processes such as slicing, rotary cutting, or sawing. It features uniform thickness, natural texture, and excellent quality, while also possessing a certain degree of flexibility and tensile strength. It can be tightly bonded to the surface of various substrate boards, not only enhancing the appearance of the boards and giving them the natural texture and color of wood, but also improving the surface's wear resistance, corrosion resistance, and deformation resistance. It is widely used in furniture manufacturing, interior decoration, and cabinet doors. In the board processing industry, the hot roll forming process, which combines wood veneer with glued substrate boards, is the mainstream method for achieving efficient wood veneer application. This process utilizes the high temperature and pressure of hot rollers to rapidly cure the glue on the board surface, thus forming a strong composite structure between the wood veneer and the substrate board, meeting the needs of industrial mass production.

[0003] Because wood veneer itself has a certain degree of flexibility, and requires unwinding and conveying before being bonded to the glued board, current equipment generally relies on manual labor to complete the initial bonding of wood veneer and board. Workers must first cut the rolled wood veneer to the size that matches the board, then manually cover the surface of the glued board with the veneer, and then send the pre-bonded board into the hot roller pressing mechanism for processing. This manual operation method is not only inefficient and difficult to adapt to the processing requirements of high-speed production lines, but more importantly, the manual laying process is prone to problems such as uneven operating force and laying angle deviation, which can lead to wrinkles, bubbles or edge misalignment when the wood veneer and board are initially bonded. This results in uneven bonding of wood veneer on the surface of the composite board, local bulging or cracking, which not only affects the appearance quality and performance of the product, but also generates a lot of waste materials, significantly increasing the production cost of enterprises and restricting the further promotion and application of hot roller pressing wood veneer composite technology. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a hot roller pressing wood veneer composite machine.

[0005] To achieve the above objectives, the present invention provides a hot roll veneer composite machine, comprising a frame, with support plates connected to both sides of the upper end of the frame, drive rollers evenly connected between the two support plates, connecting rods connected to both ends of the two support plates, and idler rollers evenly connected between the two connecting rods and the other two connecting rods, a hot pressing mechanism connected to one side of the upper end of the two support plates, a frame connected to one side of the upper end of the frame, a veneer guiding mechanism connected to one side of the upper end of the frame, the veneer guiding mechanism being used to guide the rolled veneer, and a smoothing mechanism being provided inside the frame near the hot pressing mechanism.

[0006] Preferably, the hot pressing mechanism includes two sets of fixed plates. A top plate is connected to the upper end of the two fixed plates. A hydraulic cylinder is connected to the middle of the upper end of the top plate. The output end of the hydraulic cylinder extends through to the bottom of the top plate. A lower pressure plate is connected to the lower end of the hydraulic cylinder. A heating roller is rotatably connected to the lower end of the lower pressure plate. A support roller is connected between the two support plates at the position below the heating roller.

[0007] Preferably, the veneer guiding mechanism includes two sets of support seats. The lower ends of the two support seats are connected to the upper sides of the frame. A placement block is connected to one side of each of the two support seats. The placement block is U-shaped. A rotating roller is connected between the two placement blocks. The outer wall of the rotating roller is wrapped with a veneer body. An opening is provided at the upper end of the frame corresponding to the veneer body. The lower end of the veneer body extends through into the frame and is located inside the opening.

[0008] Preferably, guide rollers are connected to both sides of the inner wall of the opening, one side of the veneer body contacts one side of the guide roller, a clamping roller is connected to one side of the guide roller, and a moving block is connected to both ends of the clamping roller. An electric telescopic rod is connected to the upper part of one side of the two moving blocks, and the lower ends of the two electric telescopic rods are respectively connected to the upper sides of the frame.

[0009] Preferably, rotating rollers are connected to the lower parts of both sides of the veneer body. The two ends of the rotating rollers are rotatably connected to the two sides of the inner wall of the frame, respectively. A stabilizing plate is connected below one of the rotating rollers. The two ends of the stabilizing plate are connected to the two sides of the inner wall of the frame, respectively. A slide rail is connected to one side of the stabilizing plate. A cutting blade is slidably connected to the outer wall of the slide rail. One end of the cutting blade is slidably connected to one side of the stabilizing plate. The cutting blade is located on one side of the veneer body.

[0010] Preferably, the top side of the frame is connected to two ends of a first cylinder, the lower ends of the two first cylinders extend through into the interior of the frame, the lower ends of the two first cylinders are connected to a fixed frame, and pressure rollers are evenly rotatably connected to both sides of the inner wall of the fixed frame.

[0011] Preferably, the smoothing mechanism includes a second cylinder, and there are two sets of the second cylinders. The lower ends of the two second cylinders are respectively connected to the upper sides of the frame. The lower ends of the two second cylinders extend through into the interior of the frame. The lower ends of the two second cylinders are connected to a sliding plate. One side of the lower end of the sliding plate is connected to a housing. A rotating seat is connected to the middle of one side of the housing. A scraper is connected between the two rotating seats. An angle adjustment motor is connected to the middle of one side of one of the rotating seats. The output end of the angle adjustment motor extends through to one side of one of the rotating seats and is connected to the scraper.

[0012] Preferably, a drive motor is connected to the middle of one side of the inner wall of the housing, and a lead screw is connected to the output end of the drive motor. The lead screw has a bidirectional thread, and sliders are threaded to both sides of the outer wall of the lead screw. A cylinder is connected to the middle of the lower end of the two sliders. A rotary micro motor is connected to the upper end of the inner wall of the two cylinders. The output ends of the two rotary micro motors extend through to the lower end of the two cylinders, and an adjusting rod is connected to the output ends of the two rotary micro motors. A smoothing roller is rotatably connected to one side of the lower end of the adjusting rod.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] This invention, by setting up a veneer guiding mechanism and a smoothing mechanism, realizes the fully automated operation of the entire process of veneer from unwinding, guiding, fixed-length cutting to automatic bonding with the substrate, which significantly improves production efficiency and reduces reliance on manual operation. It is especially suitable for high-speed continuous production lines and effectively solves the problems of low efficiency, misalignment and wrinkles that are easily generated by traditional manual veneer laying.

[0015] The clamping rollers and guide rollers controlled by the electric telescopic rods work together, combined with the multi-limiting structure of the rotating rollers and the stabilizing plate, to precisely control the tension and position of the veneer during the conveying process. This ensures that the veneer and the substrate are accurately aligned with the glued end without any lateral deviation, which greatly improves the initial bonding quality between the veneer and the substrate, avoids defects such as bubbles and wrinkles, and improves the surface flatness and appearance consistency of the composite board.

[0016] The pressing mechanism, with its opposing design of heating rollers and support rollers, combined with the stable pressure provided by hydraulic cylinders, enables uniform temperature and pressure transfer during the lamination process. This promotes rapid curing of the adhesive and ensures the formation of a strong composite layer between the veneer and the substrate. Meanwhile, the scraper and smoothing rollers in the smoothing mechanism further eliminate minor defects during the bonding process, improving the overall quality and durability of the final product and reducing scrap rates and production costs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the device of the present invention;

[0018] Figure 2 This is an overall cross-sectional view of the device of the present invention;

[0019] Figure 3 This is a schematic diagram of the internal structure of the frame of the present invention;

[0020] Figure 4 This is a schematic diagram of the connection structure between the second cylinder and the slide plate of the present invention;

[0021] Figure 5 This is a three-dimensional structural diagram of the veneer guiding mechanism of the present invention;

[0022] Figure 6 This is a schematic diagram of the connection structure of the stabilizing plate, slide rail and cutting blade of the present invention;

[0023] Figure 7 This is a schematic diagram of the connection structure between the scraper and the angle adjustment motor of the present invention;

[0024] Figure 8 This is a schematic diagram of the connection structure between the rotary micro motor and the adjusting rod of the present invention;

[0025] Figure 9 This is a schematic diagram of the mounting structure of the smoothing roller of the present invention.

[0026] In the diagram: 1. Frame; 2. Support plate; 3. Drive roller; 4. Connecting rod; 5. Support roller; 6. Fixing plate; 7. Top plate; 8. Hydraulic cylinder; 9. Lower pressure plate; 10. Heating roller; 11. Support roller; 12. Frame; 13. First cylinder; 14. Fixing frame; 15. Pressure roller; 16. Support seat; 17. Placement block; 18. Rotating roller; 19. Veneer body; 20. Opening; 21. Guide roller; 22. Electric telescopic rod; 23. Moving block; 24. Clamping roller; 25. Rotating roller; 26. Stabilizing plate; 27. Slide rail; 28. Cutting knife; 29. ​​Second cylinder; 30. Slide plate; 31. Housing; 32. Rotating seat; 33. Scraper; 34. Angle adjustment motor; 35. Drive motor; 36. Lead screw; 37. Slider; 38. Cylinder; 39. Rotating micro motor; 40. Adjusting rod; 41. Smoothing roller. Detailed Implementation

[0027] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] Numerous specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the invention is not limited to the specific embodiments disclosed below.

[0029] like Figures 1-9The hot roller pressing wood veneer composite machine shown includes a frame 1, with support plates 2 connected to both sides of the upper end of the frame 1. Drive rollers 3 are evenly connected between the two support plates 2. Connecting rods 4 are connected to both ends of the two support plates 2. Support rollers 5 are evenly connected between the two connecting rods 4 and the other two connecting rods 4. A hot pressing mechanism is connected to one side of the upper end of the two support plates 2. A frame 12 is connected to one side of the upper end of the two support plates 2. First cylinders 13 are connected to both ends of the top side of the frame 12. The lower ends of the two first cylinders 13 extend through into the interior of the frame 12. A fixed frame 14 is connected to the lower ends of the two first cylinders 13. Pressure rollers 15 are evenly rotatably connected to both sides of the inner wall of the fixed frame 14. A wood veneer guiding mechanism is connected to one side of the upper end of the frame 12. The wood veneer guiding mechanism is used to guide the rolled wood veneer. A smoothing mechanism is provided inside the frame 12 near the hot pressing mechanism.

[0030] The support plate 2 connects the drive roller 3, connecting rod 4, hot pressing mechanism, and frame 12, enabling the positioning and installation of each functional component. The drive roller 3, through friction with the lower surface of the substrate, drives the substrate to move at a uniform speed along the idler roller 5, providing power for substrate conveying. The connecting rod 4 connects the idler roller 5, fixing it at both ends of the support plate 2. The idler roller 5 carries the substrate, reducing frictional resistance during substrate conveying and ensuring smooth substrate movement. The hot pressing mechanism applies high temperature and pressure to the substrate covered with veneer, causing the veneer and substrate to cure and bond together with adhesive. The frame 12 is equipped with a first cylinder 13, a veneer guiding mechanism, and a smoothing mechanism, providing a closed working space for veneer guiding, preliminary bonding, and other processes. The first cylinder 13 provides vertical driving force to push the fixed frame 14 up and down. The fixed frame 14 is used to install the pressure roller 15, realizing the positioning and synchronous movement of the pressure roller 15. The pressure roller 15 assists in flattening the veneer during veneer conveying or preliminary bonding to prevent veneer wrinkles. The smoothing mechanism rolls and smooths the surface of the pre-bonded veneer, eliminating air bubbles and wrinkles, laying the foundation for hot-pressing composite.

[0031] like Figure 2 and Figure 4 As shown: The hot pressing mechanism includes a fixed plate 6, and there are two sets of fixed plates 6. The upper ends of the two fixed plates 6 are connected to a top plate 7. The upper middle part of the top plate 7 is connected to a hydraulic cylinder 8. The output end of the hydraulic cylinder 8 extends through to the bottom of the top plate 7. The lower end of the hydraulic cylinder 8 is connected to a lower pressure plate 9. The lower end of the lower pressure plate 9 is rotatably connected to a heating roller 10. A support roller 11 is connected between the two support plates 2 at the position below the heating roller 10.

[0032] Hydraulic cylinder 8 provides greater vertical pressure, pushing the lower pressure plate 9 and heating roller 10 to move towards the substrate, ensuring that the hot pressing pressure meets the standard. The lower pressure plate 9 is used to connect hydraulic cylinder 8 and heating roller 10, transmitting the pressure of hydraulic cylinder 8 to heating roller 10 and enabling the rotation support of heating roller 10. Heating roller 10 is used to preheat to the preset composite temperature, and under pressure, it transfers heat energy to the bonding surface between the wood veneer and the substrate, causing the adhesive to cure. Support roller 11 supports the substrate below heating roller 10, and cooperates with heating roller 10 to form a counter-pressure structure, ensuring that the substrate is subjected to uniform force and avoiding deformation of the substrate due to pressure.

[0033] like Figure 5 and Figure 6 As shown: The veneer guiding mechanism includes two sets of support seats 16. The lower ends of the two support seats 16 are connected to the upper sides of the frame 12. A placement block 17 is connected to one side of each support seat 16. The placement block 17 is U-shaped. A rotating roller 18 is connected between the two placement blocks 17. A veneer body 19 is wound around the outer wall of the rotating roller 18. An opening 20 is provided at the upper end of the frame 12 corresponding to the veneer body 19. The lower end of the veneer body 19 extends through into the frame 12 and is located inside the opening 20. Guide rollers 21 are connected to both sides of the inner wall of the opening 20. One side of the veneer body 19 contacts one side of the guide roller 21. A clamping roller 24 is connected to one side of the guide roller 21. 24 has movable blocks 23 connected to both ends. Electric telescopic rods 22 are connected to the upper part of one side of the two movable blocks 23. The lower ends of the two electric telescopic rods 22 are connected to the upper sides of the frame 12 respectively. Rotating rollers 25 are connected to the lower parts of both sides of the veneer body 19. The two ends of the rotating rollers 25 are rotatably connected to the inner walls of the frame 12 respectively. A stabilizing plate 26 is connected below one of the rotating rollers 25. The two ends of the stabilizing plate 26 are connected to the inner walls of the frame 12 respectively. A slide rail 27 is connected to one side of the stabilizing plate 26. The veneer body 19 is located between the stabilizing plate 26 and the slide rail 27. A cutting blade 28 is slidably connected to the outer wall of the slide rail 27. One end of the cutting blade 28 is slidably connected to one side of the stabilizing plate 26. The cutting blade 28 is located on one side of the veneer body 19.

[0034] The placement block 17 supports both ends of the rotating roller 18. Its U-shaped structure facilitates the installation and removal of the rotating roller 18 while restricting its axial movement. The rotating roller 18 is used to wind the rolled veneer body 19, and can rotate freely with the veneer output, ensuring smooth unwinding without jamming. The veneer body 19 is composited with the substrate to form a decorative or functional surface layer. The opening 20 provides a channel for the veneer body 19 to enter the interior from the outside of the frame 12, limiting the conveying range of the veneer body 19. The guide roller 21 contacts one side of the veneer body 19, providing initial directional calibration for the conveying of the veneer body 19 and preventing it from shifting forward or backward. The clamping roller 24 cooperates with the guide roller 21 to clamp the veneer body 19, forming a rigid limit from both sides to prevent lateral shifting of the veneer. The moving block 23 connects the clamping roller 24 and the electric telescopic rod 22, allowing the electric telescopic rod 22 to... The driving force is transmitted to the clamping roller 24 to adjust the position of the clamping roller 24. The rotating roller 25 is used to contact the two sides of the veneer body 19. One end of the two upper rotating rollers 25 is connected to a rotating motor to drive the two rotating rollers 25 to rotate. On the one hand, it provides downward conveying power to pull the veneer vertically downward, and on the other hand, it forces the veneer to maintain a vertical posture to avoid tilting and bending. The stabilizing plate 26 is used to connect the inner wall of the frame 12 and the slide rail 27 to provide stable support for the slide rail 27. At the same time, it fits against the inner side of the veneer body 19 to strengthen the inner support during veneer conveying. The slide rail 27 is an electrically controlled slide rail to provide a sliding track for the cutting blade 28. The cutting blade 28 slides on the outer wall of the slide rail 27 through the sliding block. When the veneer body 19 is conveyed to the preset length, it slides quickly along the slide rail 27 to achieve fixed-length veneer cutting, ensuring that the veneer size matches the substrate.

[0035] like Figure 3 , Figure 7 , Figure 8 and Figure 9As shown: The smoothing mechanism includes two sets of second cylinders 29. The lower ends of the two second cylinders 29 are connected to the upper sides of the frame 12, respectively. The lower ends of the two second cylinders 29 extend through into the interior of the frame 12. The lower ends of the two second cylinders 29 are connected to a sliding plate 30. One side of the lower end of the sliding plate 30 is connected to a housing 31. A rotating seat 32 is connected to the middle of one side of the housing 31. A scraper 33 is connected between the two rotating seats 32. An angle adjustment motor 34 is connected to the middle of one side of one of the rotating seats 32. The output end of the angle adjustment motor 34 extends through into one of the rotating seats 32. 2. One side is connected to the scraper 33. The middle of one side of the inner wall of the housing 31 is connected to the drive motor 35. The output end of the drive motor 35 is connected to the lead screw 36. The lead screw 36 is set with bidirectional thread. Both sides of the outer wall of the lead screw 36 are threaded to the slider 37. The middle of the lower end of the two sliders 37 is connected to the cylinder 38. The upper end of the inner wall of the two cylinders 38 is connected to the rotary micro motor 39. The output ends of the two rotary micro motors 39 extend through to the lower end of the two cylinders 38 respectively. The output ends of the two rotary micro motors 39 are connected to the adjusting rod 40. The lower end of the adjusting rod 40 is rotatably connected to the smoothing roller 41.

[0036] The second cylinder 29 pushes the slide plate 30 and the housing 31 below it, the scraper 33, and the smoothing roller 41 to move up and down, adjusting the contact distance between the smoothing components and the wood veneer. The rotating seat 32 connects the housing 31 and the scraper 33, providing rotational support for the scraper 33 and enabling angle adjustment of the scraper 33. The scraper 33 adheres to the upper surface of the wood veneer body 19 and continuously smooths the surface of the wood veneer as the board moves, eliminating tiny wrinkles and air bubbles. The angle adjustment motor 34 drives the scraper 33 to rotate around the rotating seat 32, precisely adjusting the tilt angle of the scraper 33 to ensure the smoothing effect. The drive motor 35 drives the lead screw 36 to rotate, causing the two sliders 37 to move in opposite directions. The smoothing roller 41 moves synchronously in both directions to achieve bidirectional rolling. A rotary micro motor 39 is installed on the cylinder 38. The rotary micro motor 39 provides rotational driving force to drive the adjusting rod 40 to rotate, adjust the tilt angle of the smoothing roller 41, and store the adjusting rod 40 and the smoothing roller 41 for easy up and down movement. The adjusting rod 40 connects the rotary micro motor 39 and the smoothing roller 41, transmits rotational power, and supports the smoothing roller 41. The smoothing roller 41 is attached to the outer surface of the veneer body 19. Through rolling pressure, the veneer is evenly pressed onto the glued end of the substrate, expelling air and allowing the glue to fully contact, thus achieving a preliminary and firm connection between the veneer and the substrate.

[0037] Working principle: The rolled veneer body 19 is pre-wound onto the rotating roller 18. The two ends of the rotating roller 18 are mounted in the U-shaped placement block 17, which can rotate freely with the output of the veneer to avoid jamming during unwinding. After the veneer is drawn out from the lower end of the rotating roller 18, it passes through the opening 20 at the upper end of the frame 12 and enters the interior. The guide rollers 21 on both sides of the inner wall of the opening 20 are in close contact with one side of the veneer to complete the initial orientation calibration and prevent the veneer from shifting back and forth.

[0038] After the veneer passes through the opening 20, the electric telescopic rod 22 is energized and activated, pushing the moving block 23 to move horizontally towards the veneer, which in turn drives the clamping roller 24 at the lower end to move synchronously until the clamping roller 24 is tightly fitted to the other side of the veneer. By adjusting the extension length of the electric telescopic rod 22, the clamping force of the clamping roller 24 and the guide roller 21 can be precisely controlled, which not only ensures the stability of the veneer conveying tension, but also forms a rigid limit from both sides, completely eliminating lateral deviation and ensuring that the veneer is conveyed along a fixed path.

[0039] The rotating rollers 25, symmetrically installed on both sides of the inner wall of the frame 12, work synchronously. The roller surfaces are in continuous contact with the left and right sides of the veneer. On the one hand, they provide downward conveying power, pulling the veneer vertically downward from the opening 20. On the other hand, the axes of the two sets of rotating rollers 25 remain parallel and perpendicular to the ground, forcing the veneer to maintain a vertical posture and avoiding tilting or bending. At the same time, the stabilizing plate 26 on one side of the inner wall of the frame 12 is tightly attached to the inner side of the veneer, and the upper slide rail 27 is parallel to the veneer conveying direction, further strengthening the inner support and forming a multi-stabilizing structure.

[0040] Substrate pretreatment and conveying: The substrate sheet to be laminated is pre-coated with glue evenly on one end and the upper surface, and placed on the idler roller 5 at the upper end of the frame 1; the idler roller 5 can rotate freely to reduce conveying friction. After the drive roller 3 is started, the drive roller 3 drives the sheet to move at a constant speed along the idler roller 5 into the frame 12 through the friction with the lower surface of the sheet.

[0041] When the substrate gluing end moves into the frame 12 and is directly below the vertically conveyed veneer, the upper surface of the substrate gluing end makes precise contact with the lower part of one side of the veneer, and the width of the veneer is completely aligned with the width of the substrate gluing end. At this time, the second cylinders 29 on both sides of the upper end of the frame 12 are activated, pushing the slide plate 30 to move smoothly down along the vertical guide groove on the inner wall of the frame 12, and driving the lower housing 31 to move down synchronously. At this time, the smoothing roller 41 is located below the housing 31. The angle of the adjusting rod 40 is pre-adjusted by the rotating micro motor 39 in the cylinder 38, so that the two smoothing rollers 41 below the housing 31 are in contact with the outer surface of the veneer, and the veneer is tightly pressed against the upper surface of the substrate gluing end to ensure stable contact.

[0042] After the bidirectional rolling reinforcement smoothing roller 41 is positioned, the drive motor 35 on the inner wall of the housing 31 is energized and starts, driving the lead screw 36 to rotate, causing the sliders 37 on both sides of the outer wall to slide synchronously in opposite directions; the cylinder 38, adjusting rod 40 and smoothing roller 41 at the lower end of the slider 37 move accordingly. During the sliding process, it is ensured that the smoothing roller 41 is always in contact with the outer side of the wood veneer. The smoothing roller 41 uses rolling pressure to evenly press the wood veneer onto the glued end of the substrate, expelling air and ensuring full contact of the glue to achieve a firm connection; when the smoothing roller 41 moves to the edge of both sides of the board, the drive motor 35 stops, and the rotating micro motor 39 drives the adjusting rod 40 and the smoothing roller 41 to rotate 90 degrees as a whole, bringing the adjusting rod 40 and the smoothing roller 41 under the housing 31, making it easier for the smoothing roller 41 to move upward. The slider 37 and the smoothing roller 41 are reset with the lead screw 36 rotating in the opposite direction.

[0043] After the veneer is connected to the end of the board, the drive roller 3 continues to drive the board to move outward of the frame 12. The rotating roller 25 keeps the speed synchronized with the drive roller 3 and continues to convey the veneer downward. Since the veneer is fixed to the board, the board moves and pulls the veneer forward in sync, so that the veneer is smoothly changed from vertical conveying to horizontal laying, achieving complete coverage of the board. When the veneer is conveyed to the preset length, the cutting blade 28 on the slide rail 27 starts and slides quickly along the slide rail 27 to complete the fixed-length cutting of the veneer. The cut veneer is completely attached to the top of the board.

[0044] During the veneer laying process, the angle adjustment motor 34 on one side of the housing 31 is powered on and started. The output shaft drives the rotating seat 32 to rotate, so that the scraper 33 rotates synchronously to adjust the tilt angle until the lower end of the scraper 33 is precisely attached to the upper surface of the veneer. As the board moves the veneer, the scraper 33 continuously scrapes the surface of the veneer to eliminate tiny wrinkles and air bubbles, providing a defect-free bonding foundation for subsequent hot-pressing composite.

[0045] When the substrate is conveyed between the heating roller 10 and the support roller 11, the hot pressing mechanism is activated: the hydraulic cylinder 8 on the top plate 7 outputs power to push the lower pressure plate 9 downward, so that the heating roller 10 at the lower end of the lower pressure plate 9 is tightly bonded to the wood veneer on the upper surface of the substrate. At this time, the heating roller 10 has been preheated to the preset composite temperature, and the support roller 11 provides stable support for the substrate from below. Under the pressure of the hydraulic cylinder 8, the heating roller 10 rotates synchronously with the substrate conveying, and evenly transfers heat and pressure to the bonding surface of the wood veneer and the substrate, so that the adhesive can be cured quickly, and finally the wood veneer and the substrate are firmly bonded. The finished board after bonding is continuously conveyed by the drive roller 3 and the support roller 5 and output from the other end of the equipment, completing the entire processing process.

[0046] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A hot roller pressing wood veneer composite machine, comprising a frame (1), characterized in that, The upper sides of the frame (1) are connected to support plates (2), and drive rollers (3) are evenly connected between the two support plates (2). The two ends of the two support plates (2) are connected to connecting rods (4). The two connecting rods (4) are evenly connected to the other two connecting rods (4). A hot pressing mechanism is connected to one side of the upper end of the two support plates (2). A frame (12) is connected to one side of the upper end of the frame (12). A veneer guiding mechanism is connected to one side of the upper end of the frame (12). The veneer guiding mechanism is used to guide the rolled veneer. A smoothing mechanism is provided inside the frame (12) on the side near the hot pressing mechanism. The smoothing mechanism includes a second cylinder (29), and there are two sets of the second cylinders (29). The lower ends of the two second cylinders (29) are respectively connected to the upper sides of the frame (12). The lower ends of the two second cylinders (29) extend through into the interior of the frame (12). The lower ends of the two second cylinders (29) are connected to a sliding plate (30). The lower end of the sliding plate (30) is connected to a housing (31) on one side. The middle of one side of the housing (31) is connected to a rotating seat (32). A scraper (33) is connected between the two rotating seats (32). An angle adjustment motor (34) is connected to the middle of one side of one of the rotating seats (32). The output end of the angle adjustment motor (34) extends through to one side of one of the rotating seats (32) and is connected to one side of the scraper (33). A drive motor (35) is connected to the middle of one side of the inner wall of the housing (31). A lead screw (36) is connected to the output end of the drive motor (35). The lead screw (36) is provided with a bidirectional thread. Slider (37) is threaded to both sides of the outer wall of the lead screw (36). A cylinder (38) is connected to the middle of the lower end of the two sliders (37). A rotary micro motor (39) is connected to the upper end of the inner wall of the two cylinders (38). The output ends of the two rotary micro motors (39) extend through to the lower end of the two cylinders (38). An adjusting rod (40) is connected to the output end of the two rotary micro motors (39). A smoothing roller (41) is rotatably connected to one side of the lower end of the adjusting rod (40).

2. The hot roller pressing wood veneer composite machine according to claim 1, characterized in that, The hot pressing mechanism includes a fixed plate (6), and there are two sets of fixed plates (6). The upper ends of the two fixed plates (6) are connected to a top plate (7). The upper middle part of the top plate (7) is connected to a hydraulic cylinder (8). The output end of the hydraulic cylinder (8) extends through to the bottom of the top plate (7). The lower end of the hydraulic cylinder (8) is connected to a lower pressure plate (9). The lower end of the lower pressure plate (9) is rotatably connected to a heating roller (10). A support roller (11) is connected between the two support plates (2) at the position below the heating roller (10).

3. The hot roller pressing wood veneer composite machine according to claim 1, characterized in that, The veneer guiding mechanism includes a support base (16), and there are two sets of support bases (16). The lower ends of the two support bases (16) are connected to the upper sides of the frame (12). A placement block (17) is connected to one side of the two support bases (16). The placement block (17) is U-shaped. A roller (18) is connected between the two placement blocks (17). The outer wall of the roller (18) is wrapped with a veneer body (19). An opening (20) is opened at the upper end of the frame (12) corresponding to the veneer body (19). The lower end of the veneer body (19) extends through into the interior of the frame (12). The lower end of the veneer body (19) is located inside the opening (20).

4. A hot roller pressing wood veneer composite machine according to claim 3, characterized in that, Guide rollers (21) are connected to both sides of the inner wall of the opening (20). One side of the veneer body (19) is in contact with one side of the guide roller (21). A clamping roller (24) is connected to one side of the guide roller (21). Moving blocks (23) are connected to both ends of the clamping roller (24). Electric telescopic rods (22) are connected to the upper part of one side of the two moving blocks (23). The lower ends of the two electric telescopic rods (22) are respectively connected to the upper sides of the frame (12).

5. A hot roller pressing wood veneer composite machine according to claim 3, characterized in that, The lower sides of the veneer body (19) are connected to rotating rollers (25). The two ends of the rotating rollers (25) are rotatably connected to the two sides of the inner wall of the frame (12). A stabilizing plate (26) is connected below one of the rotating rollers (25). The two ends of the stabilizing plate (26) are connected to the two sides of the inner wall of the frame (12). A slide rail (27) is connected to one side of the stabilizing plate (26). A cutting blade (28) is slidably connected to the outer wall of the slide rail (27). One end of the cutting blade (28) is slidably connected to one side of the stabilizing plate (26). The cutting blade (28) is located on one side of the veneer body (19).

6. A hot roller pressing wood veneer composite machine according to claim 1, characterized in that, The top side of the frame (12) is connected to two ends of a first cylinder (13). The lower ends of the two first cylinders (13) extend through into the interior of the frame (12). The lower ends of the two first cylinders (13) are connected to a fixed frame (14). The inner walls of the fixed frame (14) are evenly rotated and connected to pressure rollers (15).

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