A rapid hot pressing and shaping device for plywood production

Abstract

The present invention relates to the field of plywood, and discloses a rapid hot pressing and shaping device for plywood production, including a workbench, a middle placing component, a double-sided gluing component, a falling and adjusting component, a pre-pressing component, and a hot pressing component. The side placing and adhering component is used for the fitting and conveying of the plates. The double-sided gluing component is used for double-sided gluing operations on the side plates on both sides. The pre-pressing component is used for pre-pressing operations on the glued plates. Compared with the prior art, through the setting of the double-sided gluing component in this application, synchronous gluing can be achieved, which is more convenient than traditional manual gluing and saves a large amount of gluing time. The side placing and adhering component is set to press the glued side plates close to the middle plate to achieve preliminary pressing of the plywood. Through the setting of the pre-pressing component, the plywood will be secondarily pressed by multiple rotating pressing rollers, which can effectively remove the air inside and reduce the subsequent pressing time.

Description

Technical Field

[0001] The present invention relates to the field of plywood, and specifically to a rapid hot pressing and shaping device for plywood production. Background Art

[0002] The main raw materials of plywood are wood and adhesives. For wood, high-quality and well-dried boards should be selected to ensure the quality and stability of plywood. Adhesives usually include phenolic resin, urea-formaldehyde resin, or phenolic-urea-formaldehyde resin, etc. According to different types of adhesives and production processes, the adhesive is mixed and stirred with water, hardener, etc. in a certain proportion to reach a certain viscosity and fluidity. The treated wood is cut according to certain specifications and dimensions, and the cut wood is laminated in a certain order and direction. Through hot pressing, the problems of bubbling and local delamination of plywood can be effectively avoided. After hot pressing, the board blank needs to be placed for about 15 minutes to cool, ensuring the product has a stable structure, high strength, and avoiding warping and deformation.

[0003] After retrieval, in the patent with the application number CN202011308041.9, a pressing device for plywood processing is disclosed, and a hot press equipment for plywood production is disclosed. The working principle of the hot press is to use pulse heating pressure to form a low-resistance surface on the welding head, so that the current flows through the workpiece with the smallest resistance, quickly heating the welding head. The hot press can adopt the hydraulic principle to ensure a highly balanced pressure application, and has the functions of automatic pressurization, pressure maintenance, and pressure compensation.

[0004] During the production process of plywood, usually three or more layers of boards are combined and hot pressed to form plywood. When combining three layers of boards, it is necessary to apply glue to the boards. During the glue application process, it is mostly manual brushing by workers. After one side of the board is brushed with glue, a board is pasted, and then the other side of the board is brushed with glue, which seriously slows down the subsequent shaping time of the plywood. At the same time, before hot pressing, there may still be gaps inside the multi-layer boards after glue application. When the hot press performs hot pressing, situations such as uneven distribution of glue and uneven density inside the boards may occur during one-time hot pressing, increasing the hot pressing time. Therefore, a rapid hot pressing and shaping device for plywood production is proposed. Summary of the Invention

[0005] In view of the deficiencies of the prior art, the present invention provides a rapid hot pressing and shaping device for plywood production, which has the advantages of simultaneously applying glue to multiple-layer boards through equipment, performing multiple extrusions on the plywood, and reducing the hot pressing time of the plywood, and solves a series of problems such as manual glue application to multiple-layer boards, only one extrusion for the plywood, and long hot pressing time.

[0006] To achieve the above object, the present invention provides the following technical solution: A rapid hot pressing and shaping device for plywood production, comprising:

[0007] A workbench, on which a top frame is installed;

[0008] A side placing and adhering component, which is arranged above the workbench and is used for laminating and conveying plates. The side placing and adhering component includes two placing frames arranged on the workbench. A negative pressure hood and conveying rollers are arranged on the placing frames. Side plates are arranged on the sides of the placing frames. The negative pressure hood and the conveying rollers are in contact with one side of the side plates;

[0009] A middle placing component, which is arranged between the two placing frames and is used for stably placing the middle plates. The middle placing component includes a top plate installed at the bottom of the top frame. A U-shaped placing block is installed below the top plate. A middle plate is arranged between the U-shaped placing block and the workbench;

[0010] A double-sided gluing component, which is arranged on the top frame and is used for performing double-sided gluing operations on the side plates on both sides;

[0011] A falling adjustment component, which is arranged on one side of the placing frame and is used for preparing for the falling of the glued plates;

[0012] A pre-pressing component, which is arranged below the falling adjustment component and is used for performing pre-pressing operations on the glued plates. The pre-pressing component includes two groups of mounting plates fixedly installed at the bottom of the workbench. A number of rotating pressing rollers are rotatably installed between the two groups of mounting plates. The two groups of rotating pressing rollers are arranged in a V shape;

[0013] A hot-pressing component, which is arranged below the workbench and is used for performing hot-pressing operations on the glued plates.

[0014] Preferably, a pushing air cylinder is fixedly installed on the side of the top frame. The output end of the pushing air cylinder is fixedly connected to the side of the placing frame. A negative pressure fan is installed on the side of the placing frame. The negative pressure fan is communicated with the negative pressure hood.

[0015] Preferably, a number of conveying shafts are rotatably installed in the placing frame. The conveying rollers are fixedly sleeved on the conveying shafts. A conveying motor is arranged at the top of the placing frame. The output end of the conveying motor is fixedly connected to the end of one of the conveying shafts. A conveying transmission belt is connected between adjacent two conveying shafts. A horizontal plate is installed on the side of the placing frame.

[0016] Preferably, an insertion cylinder is fixedly installed at the bottom of the top plate. An insertion rod is fixedly installed at the top of the U-shaped placing block. The top end of the insertion rod extends into the insertion cylinder. A return spring is fixedly installed between the top end of the insertion rod and the top wall of the insertion cylinder.

[0017] Preferably, a rotating seat is fixedly installed at the top of the placement frame. A push top rod is rotatably installed on the rotating seat. A bottom support block is fixedly installed on the side of the rotating seat. The push top rod is located on the bottom support block. An L-shaped push top block is fixedly installed at the top of the U-shaped placement block. The L-shaped push top block is adapted to the push top rod.

[0018] Preferably, the double-sided gluing component includes a moving frame fixedly installed at the bottom of the top frame. A lead screw motor is fixedly installed on the side of the moving frame. The output end of the lead screw motor extends into the moving frame. An L-shaped lead screw moving plate is installed on the moving frame. An air inlet pipe and a liquid inlet pipe are connected to the side of the L-shaped lead screw moving plate. A plurality of air blowing nozzles are connected to the side of the air inlet pipe. A plurality of spray nozzles are connected to the side of the liquid inlet pipe. A brushing roller is rotatably installed on the side of the L-shaped lead screw moving plate.

[0019] Preferably, the falling adjustment component includes a funnel-shaped falling hole opened on the top of the workbench. An L-shaped adjustment hole is opened on the side wall of the funnel-shaped falling hole. An L-shaped adjustment plate is movably installed on the L-shaped adjustment hole. A plurality of compression springs are fixedly installed between the L-shaped adjustment plate and the inner wall of the L-shaped adjustment hole. An adjustment push rod is fixedly installed on the side of a placement frame. The adjustment push rod is adapted to the L-shaped adjustment plate. A plurality of shafts in two rows are arranged on the top of the workbench. Anti-tilting rollers are rotatably installed on the plurality of shafts in both rows.

[0020] Preferably, a rotating shaft is rotatably installed between two groups of mounting plates. A plurality of rotating pressure rollers are fixedly sleeved on the rotating shaft. A driving motor is fixedly installed on the side of the mounting plate. The output end of the driving motor is fixedly installed at the end of one rotating shaft. A pressure roller transmission belt is arranged between two adjacent rotating shafts.

[0021] Preferably, the hot pressing component includes a hot press arranged below the workbench. A plurality of hot pressing plates are arranged in the hot press. A connecting chain is connected between two adjacent hot pressing plates. A pulling rope is fixedly connected to the side of the outermost hot pressing plate. One end of the pulling rope extends outside the hot press and is connected with a positioning bolt. A bolt groove is arranged on the outside of the hot press. The positioning bolt is threadedly installed in the bolt groove. A hydraulic cylinder is arranged on the side of the hot press. The output end of the hydraulic cylinder extends into the hot press and is adapted to the outermost hot pressing plate.

[0022] Preferably, a plurality of bottom rollers are rotatably installed at the bottom of the hot press. Guide columns are fixedly installed at the bottom and side of the hot press. Guide blocks are fixedly installed at the bottom and side of a plurality of hot pressing plates. The guide blocks are slidably sleeved on the guide columns. A bottom conveying frame is arranged below the hot press. A telescopic cylinder is arranged between the bottom conveying frame and the hot press.

[0023] Compared with the prior art, the present invention provides a rapid hot pressing and shaping device for plywood production, and has the following beneficial effects:

[0024] 1. The rapid hot-pressing and shaping device for plywood production can achieve synchronous gluing after the two side plates are placed through the setting of the double-sided gluing component. Compared with traditional manual gluing, it is more convenient, saving a large amount of gluing time. The side placement and adhesion component is set to press the glued side plates close to the middle plate to achieve preliminary pressing of the plywood, and at the same time, the plywood can be sent to one side position.

[0025] 2. The rapid hot-pressing and shaping device for plywood production, through the setting of the pre-pressing component, after the plywood is preliminarily pressed, it will undergo secondary pressing by multiple rotating pressure rollers, and the force of the secondary pressing will gradually increase, which can effectively expel the air inside, making the internal fitting more compact and reducing the subsequent pressing time.

[0026] 3. The rapid hot-pressing and shaping device for plywood production, through the setting of the hot-pressing component, can press multiple plywood at one time, with a fast pressing speed of the plywood, avoiding the long time-consuming of a single pressing plate. Multiple squeezes are achieved before hot-pressing, avoiding the uneven distribution of glue and density inside the plate. When performing hot-pressing, the hot-pressing time can be reduced on the premise of ensuring the performance of the plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a left three-dimensional structural schematic diagram of the present invention;

[0028] Figure 2 It is a right three-dimensional structural schematic diagram of the present invention;

[0029] Figure 3 It is a sectional structural schematic diagram of the present invention;

[0030] Figure 4 It is a structural schematic diagram of the side placement and adhesion component of the present invention observed from the left side;

[0031] Figure 5 It is a structural schematic diagram of the side placement and adhesion component of the present invention observed from the right side;

[0032] Figure 6 It is a structural schematic diagram of the double-sided gluing component of the present invention;

[0033] Figure 7 It is a structural schematic diagram of the middle placement component of the present invention;

[0034] Figure 8 It is a partial three-dimensional structural schematic diagram of the present invention;

[0035] Figure 9 It is the present invention Figure 3 The structural schematic diagram of part A in;

[0036] Figure 10 It is a structural schematic diagram of the falling adjustment component of the present invention;

[0037] Figure 11 This is a schematic structural diagram of the pre-pressing component of the present invention;

[0038] Figure 12 This is a schematic structural diagram of the hot-pressing component of the present invention;

[0039] Figure 13 This is a schematic perspective structural diagram of a part of the hot-pressing component of the present invention;

[0040] Figure 14 This is a schematic perspective structural diagram of a part of the hot-pressing component of the present invention.

[0041] In the figure: 1, workbench; 2, top frame; 3, side placing adhesion component; 4, pushing cylinder; 5, placing frame; 6, negative pressure fan; 7, negative pressure hood; 8, horizontal plate; 9, conveying shaft; 10, conveying roller; 11, conveying motor; 12, conveying belt; 13, side plate; 14, middle placing component; 15, top plate; 16, inserting cylinder; 17, inserting rod; 18, reset spring; 19, U-shaped placing block; 20, middle plate; 21, rotating seat; 22, pushing ejector rod; 23, bottom supporting block; 24, L-shaped pushing top block; 25, double-sided glue coating component; 26, moving frame; 27, lead screw motor; 28, L-shaped lead screw moving plate; 29, air inlet pipe; 30, blowing nozzle; 31, liquid inlet pipe; 32, spray head; 33, coating roller; 34, falling adjustment component; 35, hopper-shaped falling hole; 36, L-shaped adjustment hole; 37, L-shaped adjustment plate; 38, extrusion spring; 39, adjustment push rod; 40, anti-tilting roller; 41, pre-pressing component; 42, mounting plate; 43, rotating shaft; 44, driving motor; 45, rotating pressing roller; 46, pressing roller belt; 47, hot-pressing component; 48, hot press; 49, hot pressing plate; 50, hydraulic cylinder; 51, guiding column; 52, guiding block; 53, connecting chain; 54, pulling rope; 55, positioning bolt; 56, bolt groove; 57, bottom conveying frame; 58, telescopic cylinder; 59, bottom roller. Specific embodiments

[0042] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0043] As introduced in the background art, there are deficiencies in the prior art. To solve the above technical problems, the present application proposes a rapid hot-pressing and shaping device for plywood production.

[0044] In a typical embodiment of the present application, as Figure 1 , Figure 3 , Figure 4 and Figure 5 shown, a rapid hot pressing and shaping device for plywood production includes:

[0045] A workbench 1, on which a top frame 2 is installed to provide a platform for work;

[0046] A side placing and adhering component 3, which is arranged above the workbench 1 and is used for laminating and conveying the plates. The side placing and adhering component 3 includes two placing frames 5 arranged on the workbench 1. A negative pressure hood 7 and conveying rollers 10 are arranged on the placing frames 5. A side plate 13 is arranged on the side of the placing frame 5. The negative pressure hood 7 and the conveying rollers 10 are in contact with one side of the side plate 13. A pushing cylinder 4 is fixedly installed on the side of the top frame 2. The output end of the pushing cylinder 4 is fixedly connected to the side of the placing frame 5. A negative pressure fan 6 is installed on the side of the placing frame 5. The negative pressure fan 6 is communicated with the negative pressure hood 7. A number of conveying shafts 9 are rotatably installed in the placing frame 5. The conveying rollers 10 are fixedly sleeved on the conveying shafts 9. A conveying motor 11 is arranged on the top of the placing frame 5. The output end of the conveying motor 11 is fixedly connected to the end of one conveying shaft 9. A conveying belt 12 is connected between two adjacent conveying shafts 9. A horizontal plate 8 is installed on the side of the placing frame 5.

[0047] During the production process of plywood, it is necessary to laminate a large number of plates together. Through the conveying of the conveyor belt, the side plates 13 and the middle plate 20 to be laminated are conveyed. Then, the staff respectively place the side plates 13 on one side of the two placing frames 5, and the middle plate 20 is placed below the U-shaped placing block 19. When placing the side plates 13, start the negative pressure fan 6 on the side placing and adhering component 3 to operate. The negative pressure hood 7 can generate negative pressure attraction on the side plates 13, and the placed side plates 13 will not fall down.

[0048] As a preferred embodiment in this example, as Figure 2 and Figure 6 shown, a double-sided gluing component 25 is arranged on the top frame 2 and is used for double-sided gluing operations on the two side plates 13. The double-sided gluing component 25 includes a moving frame 26 fixedly installed at the bottom of the top frame 2. A lead screw motor 27 is fixedly installed on the side of the moving frame 26. The output end of the lead screw motor 27 extends into the moving frame 26. An L-shaped lead screw moving plate 28 is installed on the moving frame 26. An air inlet pipe 29 and a liquid inlet pipe 31 are connected to the side of the L-shaped lead screw moving plate 28. A plurality of blowing nozzles 30 are connected to the side of the air inlet pipe 29. A plurality of spray nozzles 32 are connected to the side of the liquid inlet pipe 31. A brushing roller 33 is rotatably installed on the side of the L-shaped lead screw moving plate 28.

[0049] After the board is placed, start the lead screw motor 27 on the double-sided gluing component 25 to run. Through the rotation of the lead screw, the L-shaped lead screw moving plate 28 can be driven to move back and forth. During the forward movement, the air inlet pipe 29 and the liquid inlet pipe 31 are both opened. The air inlet pipe 29 is connected to an external hair dryer, and the liquid inlet pipe 31 is connected to an external glue solution pump. The gas transported through the air inlet pipe 29 is blown out through multiple blowing nozzles 30. The blowing nozzles 30 are inclined, which can blow the side plates 13 on both sides, and the dust on the surface of the side plates 13 can be blown away to avoid the influence of dust on gluing. The glue solution transported through the liquid inlet pipe 31 is sprayed out from multiple nozzles 32. The nozzles 32 on both sides spray glue onto the two side plates 13 respectively to achieve uniform glue spraying. After glue spraying, it will be brushed by the brushing roller 33 at the back, so that the sprayed glue solution can be more evenly smeared on the side plates 13. One movement can perform gluing operations on two boards at the same time, which is more convenient than traditional manual gluing and saves a lot of gluing time. After gluing, the L-shaped lead screw moving plate 28 returns to its original position.

[0050] As a preferred implementation method in this embodiment, as Figure 1 , Figure 5 , Figure 7 and Figure 8 shown, the middle placement component 14 is arranged between the two placement frames 5 and is used to stably place the middle board. The middle placement component 14 includes a top board 15 installed at the bottom of the top frame 2. A U-shaped placement block 19 is installed below the top board 15. A middle board 20 is arranged between the U-shaped placement block 19 and the workbench 1. A protruding cylinder 16 is fixedly installed at the bottom of the top board 15. A protruding rod 17 is fixedly installed at the top of the U-shaped placement block 19. The top end of the protruding rod 17 extends into the protruding cylinder 16. A return spring 18 is fixedly installed between the top end of the protruding rod 17 and the top wall of the protruding cylinder 16. A rotating seat 21 is fixedly installed at the top of the placement frame 5. A pushing top rod 22 is rotatably installed on the rotating seat 21. A bottom support block 23 is fixedly installed on the side of the rotating seat 21. The pushing top rod 22 is located on the bottom support block 23. An L-shaped pushing top block 24 is fixedly installed at the top of the U-shaped placement block 19. The L-shaped pushing top block 24 is adapted to the pushing top rod 22.

[0051] Start the driving cylinders 4 on both sides to run, which can drive the placement frames 5 on both sides to approach each other. When the placement frames 5 move, they will drive the pushing ejector rods 22 to move. When the placement frames 5 are about to approach the middle plate 20, the pushing ejector rods 22 will contact the L-shaped pushing top blocks 24. Under the action of the push, the U-shaped placement block 19 will move upward, driving the extension rod 17 to move upward and compressing the return spring 18. With continuous pushing, the U-shaped placement block 19 will separate from the middle plate 20. At the same time, the side plates 13 on both sides will contact and press against the middle plate 20. After a large number of plates are fitted together, a plywood board is formed, achieving preliminary fitting and pressing. At this time, start the conveying motor 11 to run, and at the same time stop the negative pressure fan 6 from running. Under the action of multiple conveying belts 12, drive multiple conveying shafts 9 to rotate. After multiple conveying rollers 10 rotate synchronously, they will drive the plywood board to move towards one side, and can convey the plywood board to a position above the falling adjustment component 34.

[0052] As a preferred implementation manner in this embodiment, as Figure 3 , Figure 9 and Figure 10 shown, the falling adjustment component 34 is arranged at one side position of the placement frame 5 and is used for preparing the glued board before falling. The falling adjustment component 34 includes a hopper-shaped falling hole 35 opened on the top of the workbench 1. An L-shaped adjustment hole 36 is opened on the side wall of the hopper-shaped falling hole 35. An L-shaped adjustment plate 37 is movably installed on the L-shaped adjustment hole 36. A number of extrusion springs 38 are fixedly installed between the L-shaped adjustment plate 37 and the inner wall of the L-shaped adjustment hole 36. An adjustment push rod 39 is fixedly installed on the side of one placement frame 5, and the adjustment push rod 39 is adapted to the L-shaped adjustment plate 37. Two rows of a number of shafts are arranged on the top of the workbench 1, and anti-tilting rollers 40 are rotatably installed on both rows of a number of shafts.

[0053] When the placement frame 5 moves, it will drive the adjustment push rod 39 to move, thereby pushing the L-shaped adjustment plate 37. When the side plate 13 is in contact with the middle plate 20, the L-shaped adjustment plate 37 will block the hopper-shaped falling hole 35, and the plywood board conveyed to one side will be located above the L-shaped adjustment plate 37. The provided anti-tilting rollers 40 can form a protective effect from both sides. After the plywood board is conveyed to one side, the driving cylinder 4 runs back to its original position, driving the placement frame 5 back to its original position. At this time, the adjustment push rod 39 will separate from the L-shaped adjustment plate 37. Under the pushing action of the extrusion spring 38, the L-shaped adjustment plate 37 will also return to its original position, and the hopper-shaped falling hole 35 will open, and the plywood board located above will fall.

[0054] As a preferred implementation manner in this embodiment, as Figure 3 and Figure 11As shown in the figure, the pre-pressing component 41 is arranged at the lower position of the falling adjustment component 34 and is used for pre-pressing the glued plates. The pre-pressing component 41 includes two groups of mounting plates 42 fixedly installed at the bottom of the workbench 1. A number of rotating pressure rollers 45 are rotatably installed between the two groups of mounting plates 42. The two groups of rotating pressure rollers 45 are arranged in a V shape. A rotating shaft 43 is rotatably installed between the two groups of mounting plates 42. A number of rotating pressure rollers 45 are fixedly sleeved on the rotating shaft 43. A driving motor 44 is fixedly installed on the side of the mounting plate 42. The output end of the driving motor 44 is fixedly installed at the end of one rotating shaft 43. A pressure roller transmission belt 46 is arranged between two adjacent rotating shafts 43.

[0055] The rotating pressure rollers 45 on both sides are arranged in a V shape, which can achieve the pre-pressing effect on the plywood from both sides. After the driving motor 44 runs, it cooperates with the operation of multiple pressure roller transmission belts 46. After the multiple rotating pressure rollers 45 rotate, they can continuously extrude the glued plates to form secondary pressing. During this pressing, the air inside can be effectively discharged, reducing the subsequent pressing time.

[0056] As a preferred implementation manner in this embodiment, as Figure 2 , Figure 12 , Figure 13 and Figure 14 shown, the hot-pressing component 47 is arranged at the lower position of the workbench 1 and is used for hot-pressing the glued plates. The hot-pressing component 47 includes a hot press 48 arranged below the workbench 1. A number of hot pressing plates 49 are arranged in the hot press 48. A connecting chain 53 is connected between two adjacent hot pressing plates 49. A pulling rope 54 is fixedly connected to the side of the outermost hot pressing plate 49. One end of the pulling rope 54 extends outside the hot press 48 and is connected with a positioning bolt 55. A bolt groove 56 is arranged on the outside of the hot press 48. The positioning bolt 55 is threadedly installed in the bolt groove 56. A hydraulic cylinder 50 is arranged on the side of the hot press 48. The output end of the hydraulic cylinder 50 extends into the hot press 48 and is adapted to the outermost hot pressing plate 49. A number of bottom rollers 59 are rotatably installed at the bottom of the hot press 48. Guide columns 51 are fixedly installed at the bottom and side of the hot press 48. Guide blocks 52 are fixedly installed at the bottom and side of a number of hot pressing plates 49. The guide blocks 52 are slidably sleeved on the guide columns 51. A bottom conveying frame 57 is arranged below the hot press 48. A telescopic cylinder 58 is arranged between the bottom conveying frame 57 and the hot press 48.

[0057] The pre-pressed plywood continues to fall into the hot press 48 below. In the initial stage of the hot press 48, the pulling rope 54 is in a taut state. Under the entrainment effect of the connecting chain 53, multiple hot press plates 49 are in an open state. The positioning bolt 55 is threadedly installed in the bolt groove 56 and can position the opened hot press plates 49. After one plywood falls, the telescopic cylinder 58 operates to push the hot press 48 to move a short distance, facilitating the next plywood to fall into the pressing gap between another hot press plate 49. After repeating this step, there is plywood between adjacent two hot press plates 49. Then the hot pressing step (the hot pressing step is an existing hot pressing device) starts to perform hot pressing operation on the plywood. Through the previous preliminary pressing and secondary extrusion, the plywood is extruded multiple times, avoiding the situation of uneven glue distribution and uneven density inside the board. When performing hot pressing, the hot pressing time can be reduced while ensuring the performance of the board.

[0058] The working principle of the present invention: During the production process of plywood, then the staff place the side plates 13 on one side of the two placement frames 5 respectively, and place the middle plate 20 below the U-shaped placement block 19. By operating the negative pressure fan 6, negative pressure is generated to attract, and the side plates 13 at the back will not fall down. After the plates are placed, start the double-sided gluing component 25 to operate, drive the L-shaped screw moving plate 28 to move back and forth. The gas transported in the air inlet pipe 29 is blown out through multiple air nozzles 30, and the dust on the surface of the side plates 13 can be blown away, avoiding the influence of dust on gluing. The glue liquid transported in the liquid inlet pipe 31 is sprayed out from multiple nozzles 32, and the nozzles 32 on both sides spray glue onto the two side plates 13 respectively to achieve uniform glue spraying. After glue spraying, it will be brushed by the brushing roller 33 behind, so that the sprayed glue liquid can be more evenly smeared on the side plates 13. One movement can perform glue spraying operation on two plates at the same time, which is more convenient than traditional manual gluing and saves a lot of gluing time. After gluing, the L-shaped screw moving plate 28 returns to its original position;

[0059] Start the pushing cylinders 4 on both sides, and the placement frames 5 on both sides approach each other. The U-shaped placement block 19 will move upward. With continuous pushing, the U-shaped placement block 19 separates from the middle plate 20. At the same time, the side plates 13 on both sides will contact and press against the middle plate 20. After more plates are fitted together to form a plywood, a preliminary fitting and pressing is formed. At this time, start the conveying motor 11 to operate, and at the same time stop the operation of the negative pressure fan 6. Under the action of multiple conveying belts 12, drive multiple conveying shafts 9 to rotate. After multiple conveying rollers 10 rotate synchronously, they will drive the plywood to move to one side, and the plywood can be conveyed to the upper position of the falling adjustment component 34. The pushing cylinder 4 operates to return to its original position, driving the placement frame 5 to return to its original position. At this time, the adjusting push rod 39 will separate from the L-shaped adjusting plate 37, and the L-shaped adjusting plate 37 will also return to its original position. The hopper-shaped falling hole 35 opens, and the plywood located above will fall;

[0060] The provided preloading component 41 pre-compresses the plywood from both sides to achieve a secondary compression effect. During this compression, air inside can be effectively exhausted, reducing the subsequent compression time. The pre-compressed plywood continues to fall into the hot press 48 below. After one plywood has fallen, the hot press 48 moves a short distance to facilitate the next plywood falling into the pressing gap between another hot press plate 49. After repeating this step, there is plywood between adjacent hot press plates 49. Then, the hot pressing step is started to perform hot pressing on the plywood. Through the previous preliminary pressing and secondary extrusion, the plywood is extruded multiple times, avoiding uneven distribution of glue and density inside the board. When performing hot pressing, the hot pressing time can be reduced on the premise of ensuring the performance of the board.

[0061] It should be noted that:

[0062] In this application, the following components are all prior arts: the pushing cylinder 4, the negative pressure fan 6, the conveying motor 11, the lead screw motor 27, the driving motor 44, the hot press 48, the hydraulic cylinder 50, and the telescopic cylinder 58. Their specific structures, functions, and usage methods will not be elaborated herein.

[0063] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rapid hot pressing and shaping device for plywood production, characterized in that: include: A workbench (1), wherein a top frame (2) is mounted on the workbench (1); A side-placed adhesive component (3) is arranged above the workbench (1) and is used for laminating and conveying the plate. The side-placed adhesive component (3) comprises two placement frames (5) arranged on the workbench (1), a negative pressure cover (7) and a conveying roller (10) are arranged on the placement frames (5), a side plate (13) is arranged on the side of the placement frame (5), and the negative pressure cover (7) and the conveying roller (10) are in contact with one side of the side plate (13); A middle placement component (14), the middle placement component (14) being arranged between the two placement frames (5) and used for stably placing the plate in the middle, the middle placement component (14) comprising a top plate (15) mounted on the bottom of the top frame (2), a U-shaped placement block (19) being mounted below the top plate (15), and a middle plate (20) being arranged between the U-shaped placement block (19) and the workbench (1); A double-sided gluing component (25), the double-sided gluing component (25) being arranged on the top frame (2) and used for performing a double-sided gluing operation on the side panels (13) on both sides; A drop adjustment component (34), the drop adjustment component (34) being arranged at one side of the placement frame (5) and used for preparing the glued plate before it drops; A pre-pressing component (41), the pre-pressing component (41) being arranged below the drop regulating component (34) and used for pre-pressing the glued plate, the pre-pressing component (41) comprising two groups of mounting plates (42) fixedly mounted on the bottom of the workbench (1), a plurality of rotating pressing rollers (45) being rotatably mounted between the two groups of mounting plates (42), and the two groups of rotating pressing rollers (45) being arranged in a V-shape; A hot pressing component (47), the hot pressing component (47) being arranged below the workbench (1) and used for hot pressing the glued plates; A push cylinder (4) is fixedly mounted on the side of the top frame (2), and the output end of the push cylinder (4) is fixedly connected to the side of the placement frame (5). An insertion tube (16) is fixedly mounted on the bottom of the top plate (15). An insertion rod (17) is fixedly mounted on the top of the U-shaped placement block (19). The top end of the insertion rod (17) extends into the insertion tube (16). A return spring (18) is fixedly mounted between the top end of the insertion rod (17) and the top wall of the insertion tube (16). A rotating seat (21) is fixedly mounted on the top of the placement frame (5). A push rod (22) is rotatably mounted on the rotating seat (21). A bottom support block (23) is fixedly mounted on the side of the rotating seat (21). The push rod (22) is located on the bottom support block (23). An L-shaped push rod (24) is fixedly mounted on the top of the U-shaped placement block (19). The L-shaped push rod (24) is compatible with the push rod (22).

2. The rapid hot pressing and shaping device for plywood production according to claim 1, characterized in that: A negative pressure fan (6) is installed on the side of the placement frame (5), and the negative pressure fan (6) is connected to the negative pressure cover (7).

3. The rapid hot pressing and shaping device for plywood production according to claim 2, characterized in that: A plurality of conveying shafts (9) are rotatably mounted in the placement frame (5), and a conveying roller (10) is fixedly sleeved on the conveying shaft (9). A conveying motor (11) is arranged on the top of the placement frame (5), and the output end of the conveying motor (11) is fixedly connected to the end of a conveying shaft (9). A conveying belt (12) is connected between two adjacent conveying shafts (9). A horizontal plate (8) is installed on the side of the placement frame (5).

4. The rapid hot pressing and shaping device for plywood production according to claim 1, characterized in that: The double-sided glue coating component (25) comprises a moving frame (26) fixedly mounted on the bottom of the top frame (2); a screw motor (27) is fixedly mounted on the side of the moving frame (26); the output end of the screw motor (27) extends into the moving frame (26); an L-shaped screw moving plate (28) is mounted on the moving frame (26); an air inlet pipe (29) and a liquid inlet pipe (31) are connected to the side of the L-shaped screw moving plate (28); a plurality of air blowing nozzles (30) are connected to the side of the air inlet pipe (29); a plurality of spray nozzles (32) are connected to the side of the liquid inlet pipe (31); and a coating brush roller (33) is rotatably mounted on the side of the L-shaped screw moving plate (28).

5. The rapid hot pressing and shaping device for plywood production according to claim 1, characterized in that: The drop adjustment component (34) comprises a bucket-shaped drop hole (35) provided on the top of the workbench (1), an L-shaped adjustment hole (36) provided on the side wall of the bucket-shaped drop hole (35), an L-shaped adjustment plate (37) movably mounted on the L-shaped adjustment hole (36), a plurality of extrusion springs (38) fixedly mounted between the L-shaped adjustment plate (37) and the inner wall of the L-shaped adjustment hole (36), an adjustment push rod (39) fixedly mounted on the side of a placement frame (5), the adjustment push rod (39) being adapted to the L-shaped adjustment plate (37), and two rows of a plurality of shafts being provided on the top of the workbench (1), and anti-tilt rollers (40) being rotatably mounted on both rows of a plurality of shafts.

6. The rapid hot pressing and shaping device for plywood production according to claim 1, characterized in that: A rotating shaft (43) is rotatably mounted between the two sets of mounting plates (42), a plurality of rotating pressure rollers (45) are fixedly sleeved on the rotating shaft (43), a driving motor (44) is fixedly mounted on the side of the mounting plate (42), an output end of the driving motor (44) is fixedly mounted on the end of one rotating shaft (43), and a pressure roller transmission belt (46) is provided between two adjacent rotating shafts (43).

7. The rapid hot pressing and shaping device for plywood production according to claim 1, characterized in that: The hot pressing component (47) includes a hot press (48) arranged below the workbench (1), wherein a plurality of hot pressing plates (49) are arranged inside the hot press (48), a connecting chain (53) is connected between two adjacent hot pressing plates (49), a pulling rope (54) is fixedly connected to the side of the outermost hot pressing plate (49), one end of the pulling rope (54) extends to the outside of the hot press (48) and is connected to a positioning bolt (55), a bolt groove (56) is arranged on the outside of the hot press (48), and the positioning bolt (55) is threadedly installed in the bolt groove (56), and a hydraulic cylinder (50) is arranged on the side of the hot press (48), and the output end of the hydraulic cylinder (50) extends into the hot press (48) and is adapted to the outermost hot pressing plate (49).

8. The rapid hot pressing and shaping device for plywood production according to claim 7, characterized in that: A plurality of bottom rollers (59) are rotatably mounted on the bottom of the hot press (48); guide columns (51) are fixedly mounted on the bottom and sides of the hot press (48); guide blocks (52) are fixedly mounted on the bottom and sides of a plurality of hot pressing plates (49); the guide blocks (52) are slidably sleeved on the guide columns (51); a bottom conveying frame (57) is disposed below the hot press (48); and a telescopic cylinder (58) is disposed between the bottom conveying frame (57) and the hot press (48).

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