A plywood processing press device with a pre-tightening mechanism

Abstract

The application relates to the technical field of plywood processing, and particularly discloses a plywood processing and pressing equipment with a pre-tightening mechanism, which comprises a supporting base, a synchronous pressing device is fixedly connected to the top of the supporting base, supporting frames are fixedly connected to the parts of the top of the supporting base located on the two sides of the synchronous pressing device, the top of each supporting frame is fixedly connected with the fixed end of a pressing cylinder, the movable end of the pressing cylinder penetrates through the top of the supporting frame and is fixedly connected with a pressing seat, the plywood processing and pressing equipment with the pre-tightening mechanism is provided with a feeding device, can effectively improve the feeding and pretreatment quality of the plywood, is provided with a synchronous pressing mechanism, adopts an up-down opposite extrusion mode, improves the finished product quality, is provided with a locking mechanism, can stably maintain the pressing pressure, guarantees the stable and reliable solidification process, is provided with an automatic discharging structure, realizes automatic discharging without manual intervention, and improves the production continuity and efficiency.

Description

Technical Field

[0001] This invention relates to the field of plywood processing technology, and in particular to a plywood processing pressing device with a pre-tightening mechanism. Background Technology

[0002] Plywood, as a core product of the engineered wood products industry, is widely used in furniture manufacturing, building decoration, automotive and ship interiors, and packaging materials due to its advantages such as uniform material, stable strength, and low deformation rate. It is one of the most widely used wood composite materials in the national economy. Its production core lies in the process of plywood, which is formed by plywood obtained by rotary cutting or slicing, assembling the plywood according to the cross-grain pattern, applying glue, and then pressing it together. The process stability and equipment adaptability of the pressing process directly determine the bonding strength, flatness, and internal quality of the finished product. In terms of pressing process adaptability, existing equipment has formed a mature pressure control and working condition adaptation system. As the core equipment for final pressing, the hot press has undergone technological evolution from ordinary hot press to fast closing hot press to simultaneous closing hot press. By optimizing the cylinder layout and hydraulic circuit, the closing speed and pressure uniformity of the pressing plate have been improved.

[0003] Chinese patent CN121083739A discloses a hot pressing device for processing wood plywood. By setting up a pressurizing mechanism, when the hot pressing device applies hot pressure to the surface of the plywood, it causes the surface of the hot pressing plate to vibrate and shift. Since one end of the telescopic column is fixed inside the insertion tube, when the surface of the hot pressing plate vibrates, it will drive the buffer ring to shake inside the insertion tube. The vibration is buffered by multiple buffer films on the surface of the buffer ring, which can enhance the stability of the plywood during hot pressing.

[0004] The above-mentioned methods can buffer vibrations during the hot pressing process. However, during the curing process after pressing, the pressure of the pressing cylinder must be maintained continuously. If the cylinder suddenly depressurizes, the pressing pressure will be insufficient, which will lead to a decrease in the final pressing quality of the plywood. Furthermore, without effective pre-pressing before pressing, the presence of air bubbles during direct pressing may affect the final pressing quality. Moreover, the existing equipment uses unidirectional pressure during pressing, resulting in uneven stress on the plywood, poor adhesion of the adhesive layer, and poor finished product quality. In addition, the buffer structure causes large impacts and severe vibrations during pressing, which affects the lifespan of the equipment. After pressing, the existing equipment usually requires additional electric unloading equipment or manual unloading, which affects the continuity of production and the efficiency of pressing. Summary of the Invention

[0005] To solve the above technical problems, the present invention provides the following technical solution: A plywood processing and pressing device with a pre-tightening mechanism, comprising a support base, a synchronous pressing device fixedly connected to the top of the support base, support frames fixedly connected to both sides of the top of the support base located on the synchronous pressing device, a fixed end of a pressing cylinder fixedly connected to the top of the support frame, a pressing seat fixedly connected to the movable end of the pressing cylinder passing through the top of the support frame, and a hook assembly symmetrically fixedly connected to the side of the pressing seat, a feeding rack fixedly connected to the bottom side of the support base via a bracket, a feeding device fixedly connected to the side of the support frame near the feeding rack, locking mechanisms fixedly connected to both sides of the support base, and a discharge assembly fixedly connected to the side of the support frame away from the feeding rack, the discharge assembly being used to convey the pressed plywood.

[0006] Preferably, the feeding device includes a connecting bracket, a feeding motor is fixedly connected to the bottom side of the connecting bracket, conveying rollers are rotatably connected to both sides of the inner wall of the connecting bracket, the drive shaft of the feeding motor passes through the connecting bracket and is fixedly connected to the conveying rollers, pre-tightening openings are provided on both sides of the connecting bracket, a compression spring is fixedly connected to the top of the inner wall of the pre-tightening opening, a connecting block is slidably connected to the inner wall of the pre-tightening opening, the top of the connecting block is fixedly connected to the bottom of the compression spring, a pre-pressure roller is rotatably connected to the side of the connecting block, an electric heating wire is provided inside the pre-pressure roller, and a suction cup feeding assembly is fixedly connected to the top of the connecting bracket.

[0007] Preferably, the inner wall of the connecting bracket has an adaptive adjustment groove on one side of the conveying roller. An adjustment spring is fixedly connected to one side of the inner wall of the adaptive adjustment groove. An adjustment block is slidably connected to the inner wall of the adaptive adjustment groove. The side of the adjustment block inside the adaptive adjustment groove is fixedly connected to the adjustment spring. A guide plate is fixedly connected to the side of the adjustment block away from the adjustment spring. A guide rounded corner is provided on one side of the guide plate. A first guide roller is uniformly penetrated and rotatably connected to the side of the guide plate. Inclined feeding plates are fixedly connected to both sides of the inner wall of the connecting bracket below the adaptive adjustment groove. A second guide roller is uniformly penetrated and rotatably connected to the top of the inclined feeding plate. The connecting bracket is fixedly connected to one side of the support frame. The feeding motor drives the conveying roller to convey the plywood. The compression spring in the pre-tightening port pushes the pre-pressing roller to pre-press the plywood to expel air. The heating wire in the pre-pressing roller preheats and reduces the viscosity of the adhesive layer. The guide plate aligns the plywood with the center with the help of the guide rounded corner and the adjustment spring. The guide roller assists in feeding, avoids offset and jamming, and improves pressing accuracy and feeding smoothness.

[0008] Preferably, the synchronous pressing device includes a fixed bracket, on which synchronous grooves are symmetrically opened on the side. A first slider is slidably connected to the inner wall of the synchronous groove. A buffer spring is fixedly connected to the bottom of the first slider. The bottom of the buffer spring is fixedly connected to the bottom of the inner wall of the synchronous groove. A linkage transmission assembly is rotatably connected through the side of the fixed bracket. A first transmission block and a second transmission block are respectively rotatably connected through the two movable ends of the linkage transmission assembly. The first transmission block is located above the second transmission block. Both movable ends of the linkage transmission assembly are rotatably connected to the first slider through the bracket. A fixed plate is fixedly connected to the side of the first transmission block away from the linkage transmission assembly. A hot press base is fixedly connected to the bottom of the fixed plate. A U-shaped pressing base is fixedly connected to the side of the second transmission block away from the linkage transmission assembly. Both sides of the inner wall of the U-shaped pressing base are slidably connected to both sides of the hot press base. Guide components are fixedly connected to both sides of the hot press base.

[0009] Preferably, the guiding assembly includes a first connecting plate and a second connecting plate. A guide cylinder is fixedly connected to the bottom of the first connecting plate. The bottom of the guide cylinder passes through the second connecting plate and is slidably connected to it. A guide rod is slidably connected to the inner wall of the guide cylinder. The guide rod passes through the bottom of the first connecting plate and is slidably connected to it. Two sets of the first connecting plates are symmetrically fixedly connected to both sides of the fixed plate. Two sets of the second connecting plates are symmetrically fixedly connected to both sides of the U-shaped pressing base. Two sets of guide rods are symmetrically fixedly connected to the bottom of the pressing base. Two sets of fixed brackets are symmetrically fixedly connected to the top of the support base. After the plywood is in place, the pressing cylinder pushes the pressing base downward. The guide rod and connecting rod transmission assembly drive the U-shaped pressing base upward, achieving synchronous upward and downward counter-pressing, shortening the pressing stroke, improving efficiency, and the buffer spring in the synchronous groove offsets the impact force, reducing equipment wear, making the pressure uniform, and improving the pressing quality.

[0010] Preferably, both sides of the pressing seat are symmetrically fixedly connected to fixing rods via brackets, and the bottom sides of the fixing rods are symmetrically fixedly connected to limit blocks. The locking mechanism includes a rotating seat, the top of which is rotatably connected to a locking cylinder. The inner wall of the locking cylinder is symmetrically provided with slots, and the inner wall of the slots is uniformly provided with annular locking grooves. A first spring is fixedly connected to the bottom of the inner wall of the locking cylinder, a buffer pad is fixedly connected to the top of the first spring, and a guide slide rod is fixedly connected to the bottom of the buffer pad. The bottom of the guide slide rod passes through the bottom of the inner wall of the locking cylinder and is slidably connected to the locking cylinder. A gear ring is sleeved and fixedly connected to the locking cylinder, and a gear bar meshes with the side of the gear ring. The bottom of the gear bar is fixedly connected to the movable end of the locking cylinder via a bracket. The inner wall of the annular locking grooves is uniformly provided with annular locking grooves. A second spring is fixedly connected to the uniform structure. An arc-shaped buffer plate is fixedly connected to the end of the second spring away from the annular locking groove. Both sides of the arc-shaped buffer plate are slidably connected to the inner wall of the annular locking groove. The inner wall of the locking cylinder is slidably connected to the side of the fixed rod. The slot and the inner wall of the annular locking groove are slidably connected to both sides of the limiting block. Two sets of rotating seats are symmetrically fixedly connected to both sides of the support base. The fixed end of the locking cylinder is fixedly connected to the side of the support base through a bracket. After pressing in place, the fixed rod and the limiting block are inserted into the locking cylinder. The locking cylinder drives the gear rod and gear ring to rotate the locking cylinder, which locks the limiting block into the annular locking groove and locks the pressing seat. The buffer structure reduces vibration. Multiple sets of locking grooves are adapted to plywood of different thicknesses. There is no need for continuous pressure from the cylinder, saving energy and ensuring stable pressure.

[0011] Preferably, the U-shaped pressing base includes a U-shaped base, with feeding grooves on both sides of the inner wall of the U-shaped base, and symmetrically formed blocking flush grooves at the bottom of the inner wall of the U-shaped base. A connecting slide plate is slidably connected to the inner wall of the feeding groove, and a flush plate is fixedly connected to the side of the connecting slide plate away from the feeding groove. Both sides of the flush plate are slidably connected to the inner wall of the blocking flush groove. Return springs are uniformly fixedly connected to the bottom of the inner wall of the feeding groove, and the top of the return spring is fixedly connected to the bottom of the connecting slide plate. L-shaped connecting plates are symmetrically fixedly connected to the side of the U-shaped base, and an L-shaped connecting rod is fixedly connected to the side of the connecting slide plate away from the feeding groove. A hook seat is rotatably connected to the end of the L-shaped connecting rod away from the connecting slide plate, and one side of the hook seat is connected to the L-shaped connecting plate. One side of the connecting rod is slidably connected to the inner wall of the L-shaped connecting plate. The hook-lifting seat has a guide rounded corner on the side away from the L-shaped connecting plate. The hook-pulling assembly includes a movable bracket. A telescopic box is fixedly connected to the bottom of the movable bracket. A third spring is fixedly connected to one side of the inner wall of the telescopic box. A hook-lifting rod is slidably connected to the inner wall of the telescopic box. The side of the hook-lifting rod located inside the telescopic box is fixedly connected to the third spring. A guide rounded corner is provided at the end of the hook-lifting rod away from the telescopic box. During pressing, the hook-lifting rod moves down with the help of the pressing seat and engages with the hook-lifting seat. After pressing is completed, the pressing seat resets. The hook-lifting rod drives the hook-lifting seat and the flat plate to rise. The plywood tilts and slides down to discharge the material. The flat plate automatically resets under the action of the reset spring. The discharge is completed with the help of the pressing cylinder, reducing manual labor and improving efficiency.

[0012] The beneficial effects of the technical solution provided by this invention include: 1. This plywood processing and pressing equipment with a pre-tightening mechanism is equipped with a feeding device, which can effectively improve the quality of plywood feeding and pre-treatment, laying the foundation for high-precision pressing. During conveying, the pre-pressure rollers work with the extrusion springs to pre-press the board, expelling internal air. The heating wires simultaneously preheat to reduce the viscosity of the adhesive layer, improve the fluidity and wetting effect of the adhesive, and avoid air bubble defects. The guide plate achieves automatic centering and correction under the action of the adjusting spring. With the help of multiple sets of guide rollers, the board is conveyed smoothly, preventing board deviation and jamming, reducing the defect rate, and improving the accuracy of subsequent processing and pressing quality.

[0013] 2. This plywood processing and pressing equipment with a pre-tightening mechanism is equipped with a synchronous pressing mechanism. It adopts an upper and lower opposing extrusion method. During pressing, the hot press seat and the U-shaped pressing base move synchronously in opposite directions, shortening the pressing stroke, improving production efficiency, and the buffer spring can offset the impact, reduce equipment vibration, reduce component wear, and extend equipment life. The synchronous pressure from the upper and lower parts makes the plywood more uniformly stressed and the glue layer more tightly bonded, effectively improving the problem of uneven pressure in traditional unidirectional pressing and further improving the quality of finished products.

[0014] 3. This plywood processing and pressing equipment with a pre-tightening mechanism is equipped with a locking mechanism, which can stably maintain the pressing pressure and ensure a stable and reliable curing process. After pressing, the limit block is locked and positioned by the toothed ring and locking cylinder. The buffer structure reduces impact and vibration, protects the equipment, and multiple locking grooves of different depths can be adapted to boards of different thicknesses. There is no need for continuous pressure supply from the pressing cylinder, saving energy and reducing equipment wear. At the same time, it avoids insufficient pressure caused by cylinder depressurization, ensuring stable pressure throughout the pressing process and improving the final pressing quality and stability of the plywood.

[0015] 4. This plywood processing and pressing equipment with a pre-tightening mechanism is equipped with an automatic discharge structure, realizing automated discharge without manual intervention, improving production continuity and efficiency. The discharge action is directly driven by the reset power of the pressing cylinder, without the need for an additional power source. After pressing, the board is automatically lifted and tilted to slide out, completing a smooth discharge. Subsequently, the flat plate can automatically reset. No manual material handling is required throughout the process, reducing labor intensity, minimizing safety hazards and efficiency losses caused by manual operation, achieving seamless connection between pressing and discharge, and improving overall processing efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the plywood processing and pressing equipment with a pre-tightening mechanism according to the present invention; Figure 2 This is a schematic diagram of the support frame connection structure of the present invention; Figure 3 This is a schematic diagram of the connection structure of the feeding device of the present invention; Figure 4 This is a schematic diagram of the inclined feeding plate connection structure of the present invention; Figure 5 This is a schematic diagram of the connection structure of the synchronous pressing device of the present invention; Figure 6 This is a schematic diagram of the guiding component structure of the present invention; Figure 7 This is a schematic diagram of the connection structure of the locking mechanism of the present invention; Figure 8 This is a schematic diagram of the locking mechanism structure of the present invention; Figure 9 This is a schematic diagram of the internal connection structure of the locking cylinder of the present invention; Figure 10 This is a schematic diagram of the hook-pull assembly connection structure of the present invention; Figure 11 This is a schematic diagram of the U-shaped pressing base structure of the present invention; Figure 12 This is a schematic diagram of the internal connection structure of the hook assembly of the present invention. In the diagram: 1. Support base; 2. Synchronous pressing device; 3. Support frame; 4. Pressing cylinder; 5. Pressing seat; 6. Hook assembly; 7. Discharge rack; 8. Feeding device; 9. Locking mechanism; 10. Discharge assembly; 11. Fixing rod; 12. Limiting block; 21. Fixing bracket; 22. Synchronous groove; 23. First slider; 24. Buffer spring; 25. Linkage transmission assembly; 26. First transmission block; 27. Second transmission block; 28. Fixing plate; 29. ​​U-shaped pressing base; 210. Hot press seat; 211. Guide assembly; 2111. First connecting plate; 2112. Second connecting plate; 2113. Guide cylinder; 2114. Guide rod; 291. U-shaped base; 292. Discharge chute; 293. Blocking flush groove; 294. Connecting slide plate; 295. Flat plate; 296. Return spring; 97. L-shaped connecting plate; 298. L-shaped connecting rod; 299. Hook seat; 61. Moving bracket; 62. Telescopic box; 63. Third spring; 64. Hook rod; 81. Connecting bracket; 82. Feeding motor; 83. Conveying roller; 84. Pre-tightening port; 85. Compression spring; 86. Connecting block; 87. Pre-pressure roller; 88. Suction cup feeding assembly; 89. Adaptive adjustment groove; 810. Adjusting spring; 811. Adjusting block; 812. Guide plate; 813. First guide roller; 814. Inclined feeding plate; 815. Second guide roller; 91. Rotating seat; 92. Locking cylinder; 93. Slot; 94. Annular locking groove; 95. First spring; 96. Buffer pad; 97. Guide slide rod; 98. Gear ring; 99. Gear bar; 910. Locking cylinder; 911. Second spring; 912. Arc-shaped buffer plate. Detailed Implementation

[0017] For the first embodiment, please refer to... Figures 1-4This invention provides a plywood processing and pressing device with a pre-tightening mechanism. By incorporating an adaptive guiding mechanism, during operation, after the plywood raw materials stacked on the feeding rack 7 are removed sheet by sheet by sheet by the suction cup feeding assembly 88, the feeding motor 82 is activated, driving the conveying roller 83 to rotate and convey the plywood in the pressing direction. During conveying, the compression spring 85 inside the pre-tightening port 84 compresses the connecting block 86, driving the pre-pressure roller 87 to press the plywood downwards. This allows for pre-pressing of the plywood during conveying, expelling residual air from inside the plywood and preventing air bubbles from affecting the pressing quality. Simultaneously, the heating wire inside the pre-pressure roller 87 preheats the plywood, reducing the viscosity of the adhesive layer. To improve fluidity and wettability, the adhesive layer evenly fills the gaps between veneers, improving the subsequent pressing quality. When the plywood is conveyed to the guide plate 812, it is guided by the guide rounded corners of the guide plate 812 and the elastic force of the adjusting spring 810, pushing the plywood towards the center and aligning it in the center position. This prevents the plywood from shifting during conveying, which could lead to incorrect pressing position in the subsequent process. This ensures accurate plywood conveying position, reduces the production defect rate, and improves processing precision. During the conveying process, the second guide roller 815 on the top of the inclined feeding plate 814 and the first guide roller 813 on the side of the guide plate 812 assist the plywood in sliding down to the synchronous pressing device 2, preventing the plywood from getting stuck and ensuring smooth feeding.

[0018] For the second embodiment, please refer to... Figures 1-6 By setting a synchronous pressing mechanism, pressing begins when the plywood is transferred to the bottom of the inner wall of the U-shaped pressing base 29. The pressing cylinder 4 pushes the pressing seat 5 downward. The pressing seat 5 moves downward, causing the guide rod 2114 to slide towards the bottom of the inner wall of the guide cylinder 2113 under the guidance of the guide cylinder 2113. When the guide rod 2114 slides down to the bottom of the inner wall of the guide cylinder 2113, the pressing seat 5 simultaneously comes into contact with the fixed plate 28. The pressing cylinder 4 continues to move downward, pushing the guide cylinder 2113 downward through the guide rod 2114. At the same time, the pressing seat 5 drives the fixed plate 28 and the hot press seat 210 to move downward as a whole. The fixed plate 28 drives the first transmission block 26 downward. The first transmission block 26 drives the second transmission block 27 to move upward synchronously through the linkage transmission assembly 25. The second transmission block 27 drives the U-shaped pressing base 29 to move towards the hot press base 210. This enables synchronous upward and downward pressing during the pressing process. Compared with traditional unidirectional pressing equipment, this not only shortens the pressing stroke and improves pressing efficiency, but also the buffer spring 24 in the synchronous groove 22 can offset the impact force generated during the pressing process, reduce the overall vibration amplitude of the equipment, reduce the wear of internal parts caused by equipment vibration, and extend the service life of the equipment. At the same time, the synchronous upward and downward pressing can make the pressure inside the plywood more uniform, further improving the quality of the pressed product.

[0019] Third embodiment, please refer to Figures 1-9By setting a locking mechanism 9, during the pressing and waiting process for the plywood to cure, the pressing seat 5 needs to be kept in a fixed pressing position. When the pressing cylinder 4 pushes the pressing seat 5 down to the predetermined pressing position, the fixing rods 11 and the limiting blocks 12 on both sides of the pressing seat 5 are inserted into the locking cylinder 92. When the fixing rods 11 are inserted into the locking cylinder 92, the limiting blocks 12 slide down along the slot 93. When the limiting blocks 12 slide to the annular locking groove 94, the locking cylinder 910 pushes the rack 99 to move. The rack 99 drives the meshing gear ring 98 to rotate. The gear ring 98 drives the locking cylinder 92 to rotate as a whole, causing the annular locking groove 94 to shift position and locking the limiting blocks 12 into the annular locking groove 94. At this time, the side of the limiting blocks 12 presses against the arc-shaped buffer plate 912 and the second spring 911 and... The arc-shaped buffer plate 912 fits tightly, thus providing buffer protection for the limit block 12. This buffers the impact force during hot pressing and, with the help of the first spring 95 and the buffer pad 96, holds the bottom of the fixing rod 11, buffering the instantaneous pressure when entering the locking cylinder 92 during pressing. This further reduces the vibration of the pressing equipment and improves its service life. In addition, multiple sets of annular locking grooves 94 of different depths are provided to adapt to the locking requirements of pressing plywood of different thicknesses. Moreover, it does not need to maintain the continuous output pressure of the pressing cylinder 4, which can save energy consumption, reduce the wear and tear caused by long-term operation of the equipment, and avoid insufficient pressure caused by the pressure leakage of the pressing cylinder 4 during long-term pressing. This ensures the pressure stability during the pressing process and further improves the final pressing quality of the plywood.

[0020] For the fourth embodiment, please refer to [link / reference]. Figures 1-12By setting up an automatic discharge structure, the plywood is positioned above the flush plate 295 before pressing. The connecting slide plate 294 and the flush plate 295 are then pulled by the return spring 296, causing the flush plate 295 to fit tightly against the flushing groove 293 and flush with the bottom of the inner wall of the U-shaped pressing base 29, thus not affecting the pressing operation. Firstly, during pressing, the pressing seat 5 moves downward under the drive of the pressing cylinder 4. The downward movement of the pressing seat 5 causes the moving bracket 61 to move downward, which in turn causes the telescopic box 62 to move downward. The telescopic box 62 then causes the hook rod 64 to move downward. When the hook rod 64 descends to the hook seat 299, it is guided... Under the pressure of the rounded corners, the hook rod 64 is compressed and slides into the telescopic box 62, compressing the third spring 63. After the hook rod 64 has completely passed the side of the hook seat 299, the third spring 63 springs and pushes the hook rod 64 out, extending it to the bottom of the hook seat 299 where it is stopped by the hook seat 299. After the pressing is completed, the pressing cylinder 4 drives the pressing seat 5 to return to its original position. The upward movement of the pressing seat 5 drives the hook rod 64 to move upward, hooking the hook seat 299 upward. Since one side of the hook seat 299 is square and blocked by the inner wall of the L-shaped sliding plate, it cannot rotate. Therefore, the upward movement of the hook rod 64 can drive the hook seat 299 upward along the inner wall of the L-shaped sliding plate. The lifting seat 299 moves upward, causing the L-shaped connecting rod 298 to move upward. The L-shaped connecting rod 298 causes the connecting slide plate 294 to slide upward within the unloading chute 292. The upward movement of the connecting slide plate 294 causes the flush plate 295 to move upward, lifting the entire plywood after pressing. Since the flush plate 295 is only half the bottom of the inner wall of the U-shaped pressing base 29, the plywood will form an inclined angle when being lifted upward and slide off the flush plate 295 under the action of gravity. Finally, it passes through the discharge assembly 10 and is transported out of the pressing equipment. When the lifting rod 64 moves the lifting seat 299 upward to the L-shaped connecting plate... When the hook seat 299 is at its top, it loses the limit on one side of the inner wall of the L-shaped connecting plate 297 and can rotate around the L-shaped connecting rod 298. At this time, the hook rod 64 loses the limit at the bottom of the hook seat 299 and no longer hooks the hook seat 299 to continue moving upward. Then, the flat plate 295 automatically resets downward under the pulling force of the return spring 296 and the connecting slide plate 294, returning to the initial position to wait for the next pressing operation. The entire discharge process does not require manual removal of the plywood, nor does it require an additional power source to drive the discharge lifting mechanism. The lifting and discharge can be completed directly by the power of the pressing cylinder 4 resetting, reducing the intensity of manual labor and improving production efficiency.

[0021] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. The scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A plywood processing and pressing device with a pre-tightening mechanism, characterized in that: The system includes a support base (1), a synchronous pressing device (2) fixedly connected to the top of the support base (1), a support frame (3) fixedly connected to the top of the support base (1) on both sides of the synchronous pressing device (2), a fixed end of a pressing cylinder (4) fixedly connected to the top of the support frame (3), a pressing seat (5) fixedly connected to the movable end of the pressing cylinder (4) through the top of the support frame (3), a hook assembly (6) fixedly connected to the side of the pressing seat (5), a feeding rack (7) fixedly connected to the bottom side of the support base (1) via a bracket, a feeding device (8) fixedly connected to the side of the support frame (3) near the feeding rack (7), a locking mechanism (9) fixedly connected to both sides of the support base (1), and a discharge assembly (10) fixedly connected to the side of the support frame (3) away from the feeding rack (7). The discharge assembly (10) is used to transport the pressed plywood. The feeding device (8) includes a connecting bracket (81), a feeding motor (82) is fixedly connected to the bottom side of the connecting bracket (81), and conveying rollers (83) are rotatably connected to both sides of the inner wall of the connecting bracket (81). The drive shaft of the feeding motor (82) passes through the connecting bracket (81) and is fixedly connected to the conveying rollers (83). Pre-tightening ports (84) are opened on both sides of the connecting bracket (81). A compression spring (85) is fixedly connected to the top of the inner wall of the pre-tightening port (84). A connecting block (86) is slidably connected to the inner wall of the pre-tightening port (84). The top of the connecting block (86) is fixedly connected to the bottom of the compression spring (85). A pre-pressure roller (87) is rotatably connected to the side of the connecting block (86). An electric heating wire is provided inside the pre-pressure roller (87). A suction cup feeding assembly (88) is fixedly connected to the top of the connecting bracket (81).

2. The plywood processing and pressing equipment with a pre-tightening mechanism according to claim 1, characterized in that: The inner wall of the connecting bracket (81) located on one side of the conveying roller (83) has an adaptive adjustment groove (89). An adjustment spring (810) is fixedly connected to one side of the inner wall of the adaptive adjustment groove (89). An adjustment block (811) is slidably connected to the inner wall of the adaptive adjustment groove (89). The adjustment block (811) located inside the adaptive adjustment groove (89) is fixedly connected to the adjustment spring (810). A guide plate (812) is fixedly connected to the side of the adjustment block (811) away from the adjustment spring (810). A guide rounded corner is provided on one side of the guide plate (812). A first guide roller (813) is uniformly penetrated and rotatably connected to the side of the guide plate (812). Inclined feeding plates (814) are fixedly connected to both sides of the inner wall of the connecting bracket (81) located below the adaptive adjustment groove (89). A second guide roller (815) is uniformly penetrated and rotatably connected to the top of the inclined feeding plate (814). The connecting bracket (81) is fixedly connected to one side of the support frame (3).

3. The plywood processing and pressing equipment with a pre-tightening mechanism according to claim 1, characterized in that: The synchronous pressing device (2) includes a fixed bracket (21). A synchronous groove (22) is symmetrically opened on the side of the fixed bracket (21). A first slider (23) is slidably connected to the inner wall of the synchronous groove (22). A buffer spring (24) is fixedly connected to the bottom of the first slider (23). The bottom of the buffer spring (24) is fixedly connected to the bottom of the inner wall of the synchronous groove (22). A connecting rod transmission assembly (25) is rotatably connected through the side of the fixed bracket (21). A first transmission block (26) and a second transmission block (27) are respectively rotatably connected through the two movable ends of the connecting rod transmission assembly (25). The first transmission block (26) is located at... Above the second transmission block (27), both movable ends of the connecting rod transmission assembly (25) pass through and are rotatably connected to the first slider (23) via a bracket. A fixed plate (28) is fixedly connected to the side of the first transmission block (26) away from the connecting rod transmission assembly (25). A hot press base (210) is fixedly connected to the bottom of the fixed plate (28). A U-shaped pressing base (29) is fixedly connected to the side of the second transmission block (27) away from the connecting rod transmission assembly (25). Both sides of the inner wall of the U-shaped pressing base (29) are slidably connected to both sides of the hot press base (210). Guide components (211) are fixedly connected to both sides of the hot press base (210).

4. A plywood processing and pressing device with a pre-tightening mechanism according to claim 3, characterized in that: The guide assembly (211) includes a first connecting plate (2111) and a second connecting plate (2112). A guide cylinder (2113) is fixedly connected to the bottom of the first connecting plate (2111). The bottom of the guide cylinder (2113) passes through the second connecting plate (2112) and is slidably connected to the second connecting plate (2112). A guide rod (2114) is slidably connected to the inner wall of the guide cylinder (2113). The guide rod (2114) passes through the bottom of the first connecting plate (2111) and is slidably connected to the first connecting plate (2111). The first connecting plate (2111) is provided with two sets and is symmetrically fixedly connected to both sides of the fixed plate (28). The second connecting plate (2112) is provided with two sets and is symmetrically fixedly connected to both sides of the U-shaped pressing base (29). The guide rod (2114) is provided with two sets and is symmetrically fixedly connected to the bottom of the pressing base (5). The fixed bracket (21) is provided with two sets and is symmetrically fixedly connected to the top of the support base (1).

5. A plywood processing and pressing device with a pre-tightening mechanism according to claim 1, characterized in that: Both sides of the pressing seat (5) are symmetrically fixedly connected with fixing rods (11) by brackets, and the bottom of the side of the fixing rods (11) are symmetrically fixedly connected with limit blocks (12).

6. A plywood processing and pressing device with a pre-tightening mechanism according to claim 5, characterized in that: The locking mechanism (9) includes a rotating seat (91), with a locking cylinder (92) rotatably connected to the top of the rotating seat (91). The inner wall of the locking cylinder (92) has symmetrically arranged slots (93), and the inner wall of the slots (93) has evenly arranged annular locking grooves (94). A first spring (95) is fixedly connected to the bottom of the inner wall of the locking cylinder (92). A buffer pad (96) is fixedly connected to the top of the first spring (95), and a guide rod (97) is fixedly connected to the bottom of the buffer pad (96). The bottom of the guide rod (97) penetrates the bottom of the inner wall of the locking cylinder (92). The part is slidably connected to the locking cylinder (92). A toothed ring (98) is sleeved and fixedly connected to the locking cylinder (92). A toothed rod (99) is engaged on the side of the toothed ring (98). The bottom of the toothed rod (99) is fixedly connected to the movable end of the locking cylinder (910) through a bracket. A second spring (911) is evenly fixedly connected to the inner wall of the annular locking groove (94). An arc-shaped buffer plate (912) is fixedly connected to the end of the second spring (911) away from the annular locking groove (94). Both sides of the arc-shaped buffer plate (912) are slidably connected to the inner wall of the annular locking groove (94).

7. A plywood processing and pressing device with a pre-tightening mechanism according to claim 6, characterized in that: The inner wall of the locking cylinder (92) is slidably connected to the side of the fixing rod (11), the inner walls of the slot (93) and the annular locking groove (94) are slidably connected to the sides of the limiting block (12), the rotating seat (91) is provided with two sets and is symmetrically fixedly connected to the sides of the support base (1), and the fixed end of the locking cylinder (910) is fixedly connected to the side of the support base (1) through the bracket.

8. A plywood processing and pressing device with a pre-tightening mechanism according to claim 3, characterized in that: The U-shaped pressing base (29) includes a U-shaped base (291). Both sides of the inner wall of the U-shaped base (291) are provided with feeding grooves (292). Symmetrical blocking flush grooves (293) are provided at the bottom of the inner wall of the U-shaped base (291). A connecting slide plate (294) is slidably connected to the inner wall of the feeding groove (292). A flush plate (295) is fixedly connected to the side of the connecting slide plate (294) away from the feeding groove (292). Both sides of the flush plate (295) are slidably connected to the inner wall of the blocking flush groove (293). Return springs (296) are evenly fixedly connected to the bottom of the inner wall of the feeding groove (292). The top of the reset spring (296) is fixedly connected to the bottom of the connecting slide plate (294). The side of the U-shaped base (291) is symmetrically fixedly connected to an L-shaped connecting plate (297). The side of the connecting slide plate (294) away from the feeding chute (292) is fixedly connected to an L-shaped connecting rod (298). The end of the L-shaped connecting rod (298) away from the connecting slide plate (294) is rotatably connected to a hook seat (299). One side of the hook seat (299) and one side of the L-shaped connecting rod (298) are slidably connected to the inner wall of the L-shaped connecting plate (297). The side of the hook seat (299) away from the L-shaped connecting plate (297) is provided with a guide rounded corner.

9. A plywood processing and pressing device with a pre-tightening mechanism according to claim 1, characterized in that: The hook assembly (6) includes a movable bracket (61), a telescopic box (62) is fixedly connected to the bottom of the movable bracket (61), a third spring (63) is fixedly connected to one side of the inner wall of the telescopic box (62), a hook rod (64) is slidably connected to the inner wall of the telescopic box (62), the hook rod (64) is located inside the telescopic box (62) and is fixedly connected to the third spring (63), and a guide rounded corner is provided at the end of the hook rod (64) away from the telescopic box (62).

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