Multilayer board preparation equipment and preparation method thereof

Abstract

The present invention relates to the field of multilayer board preparation, and specifically to a multilayer board preparation device and a preparation method thereof, comprising a board with a multilayer structure design, a processing frame, a placing frame and a pressing frame, the top of the processing frame is provided with a processing module for applying adhesive to the board, the processing frame is provided with a feeding frame, the upper and lower parts of the pressing frame are both provided with pressing plates, the middle part of the pressing frame is provided with a heating unit, and the upper pressing plate is provided with a defoaming unit. The present invention enhances the overall rigidity and bending resistance of the multilayer board, can evenly disperse the pressure applied from the outside, prevent the board from being broken due to excessive local force, can effectively limit the expansion of small cracks, block the spread of flames and other functions, has a high degree of automation, reduces manual intervention, improves production efficiency, can improve the bonding strength of the finished product, so that each layer of single board can be well fitted before pressing, reduces bubble formation, and effectively eliminates bubbles generated during the pressing process.

Description

Technical Field

[0001] The present invention belongs to the technical field of multilayer board preparation, and in particular relates to a multilayer board preparation device and a preparation method thereof. Background Art

[0002] Multilayer boards are a common building material, widely used in various fields, including construction and furniture manufacturing. However, ordinary multilayer boards are prone to bending and breaking when subjected to heavy loads, making them difficult to meet the demands of high-strength applications. Furthermore, ordinary boards lack good fire resistance, which can accelerate the spread of fire in the event of a fire. Traditional equipment is limited in functionality and struggles to complete multiple processes simultaneously, resulting in long production cycles and high costs. Furthermore, due to the lack of an effective bubble removal mechanism, air bubbles generated during the lamination process can affect the quality of the finished product and reduce bond strength.

[0003] The Chinese patent application number 202311112997.5 is a fireproof multilayer board processing device for building fireproof materials, including a board and a base, a lifting cylinder is fixedly connected to the surface of the base, and the end of the lifting cylinder is fixedly connected to the lifting seat, the lifting seat is slidably connected to the surface of the base, two pressing rollers are arranged in the lifting seat, and vibration rods are arranged on the opposite sides of the two pressing rollers. The inner wall of the lifting seat is rotatably connected to the threaded rod, and the inner wall of the lifting seat is fixedly connected to the limiting rod. The rod arm of the threaded rod is provided with two threads in opposite directions, and also includes two groups of rolling parts, both of which are arranged in the lifting seat. Through the arrangement of the two groups of rolling parts, the two pressing rollers are respectively displaced relative to each other, and also includes two groups of knocking parts, which are respectively transmission-connected to the two groups of rolling parts. The present invention has the effect of improving the pressing uniformity of the fireproof multilayer board and improving the pressing quality through the mutual cooperation between the above structures.

[0004] The production method and product of recycled multi-layer board of Chinese patent application number 201811223912.X are carried out according to the following steps: (a) purchasing discarded construction multi-layer boards, removing nails and surface impurities; (b) first using a construction waste multi-layer board thickness sorting machine to accurately sort and stack the multi-layer boards according to thickness; then using a waste multi-layer board cutting machine to cut the heads of the same type of multi-layer boards sorted by thickness, and then cut into equal width strips of different specifications, at this time obtaining multi-layer board strip raw materials of different specifications, equal width and thickness; (c) using an automatic glue coating machine to apply glue, splicing in the template to form a mold board, and layering together with the template into a multi-layer four-sided side pressing hot press to simultaneously hot press to form a mold board, the four-sided side pressing hot press simultaneously hot presses and side presses, and its side pressure is 4-5.5MPa, the positive pressure is 4-5.5MPa, the temperature is 185-250℃, and the time is 3-9 minutes; (d) after cooling, using a recycled wood board sander to sand and remove surface impurities to obtain this product.

[0005] However, there are still the following problems in practical applications, specifically:

[0006] 1. Limited Improvement in Mechanical Properties: While both patents attempt to improve certain properties of the panels (such as fire resistance or environmental friendliness), they offer little information on how to fundamentally enhance the panels' overall rigidity and bending resistance, particularly through physical structural improvements (such as the use of wire mesh). This means that the panels could still deform or damage when subjected to significant external forces in actual use.

[0007] 2. Lack of comprehensive performance optimization: Neither document details how technological innovations can be used to comprehensively improve the various properties of the panels, including but not limited to mechanical strength, fire resistance, production efficiency, and finished product quality. For example, there is no mention of elements like wire mesh that can effectively limit the expansion of small cracks and act as a barrier to the spread of flames.

[0008] 3. Low level of automation: The production equipment in the two patents has a relatively low degree of automation and still requires a lot of manual intervention, which not only increases labor costs but also reduces production efficiency.

[0009] Therefore, how to overcome the above-mentioned technical problems and defects becomes a key issue that needs to be solved. Summary of the Invention

[0010] The purpose of the invention is to overcome the defects described in the background technology, thereby realizing a multi-layer board preparation equipment and its preparation method. By using wire mesh as structural support, the overall rigidity and bending resistance of the multi-layer board are greatly enhanced, and it can also help to evenly disperse the external pressure to prevent local excessive force from causing the board to break. It can effectively limit the expansion of small cracks and block the spread of flames. The equipment integrates an integrated operation process with a high degree of automation, reduces manual intervention, improves production efficiency, and can improve the bonding strength of the finished product, so that each layer of single board can be well fitted before pressing, reduces bubble formation, and effectively eliminates air bubbles generated during the pressing process.

[0011] To achieve the above purpose, the present invention adopts the following technical solution: including a plate with a multi-layer structure design, a processing frame, a placement frame and a pressing frame, wherein the placement frame is arranged in the middle position between the processing frame and the pressing frame.

[0012] The top of the processing frame is equipped with a processing module for applying adhesive to the bottom surface of the board. A feeder is installed on the processing frame to move the board. The upper and lower parts of the pressing frame are both equipped with lifting and lowering pressing plates. A horizontally movable heating unit is installed in the middle of the pressing frame, and a defoaming unit is installed on the upper pressing plate to assist in pressing the multilayer board.

[0013] Preferably, the plate is provided with at least three layers, the length and width of each layer of the plate are the same, and the plate in the middle layer is fixedly provided with at least one layer of wire mesh.

[0014] Preferably, the processing module includes a paint box fixedly arranged horizontally on the top of the processing frame, the paint box is a rectangular structure with an open top, and a heating plate is fixedly arranged inside the paint box.

[0015] Racks are fixedly provided on both sides of the paint box, a roller is provided on the paint box, paint cotton is sleeved on the roller and can abut against the bottom surface of the plate, and gears meshing with corresponding racks are fixedly provided at both ends of the roller.

[0016] A guide groove is horizontally opened on the side of the paint box, a guide rail is slidably arranged on the guide groove, a bracket is fixedly arranged on the guide rail, and a first bidirectional motor that drives the corresponding gear to rotate is fixedly arranged on the bracket.

[0017] Preferably, slide rails are fixedly provided on both sides of the processing frame, the feeding frame is slidably provided on the slide rails, and rollers are rotatably provided at the bottom end of the feeding frame, and the rollers are in contact with the top ends of the slide rails.

[0018] A top plate is fixedly provided horizontally on the top of the feeding rack, and at least one first hydraulic rod is fixedly provided vertically on the top plate. The telescopic ends of the first hydraulic rods are fixedly provided with magnetic seats that can abut against the top of the plate.

[0019] A hydraulic rack is horizontally fixed in the middle of the feeder frame, with an internal oil circuit. A hydraulic cylinder connected to the oil circuit is vertically fixed to the top of the top plate. Second hydraulic rods are horizontally fixed at both ends of the hydraulic racks on both sides of the processing frame, and these second hydraulic rods are connected to the oil circuit. T-shaped racks for supporting sheet materials are installed on both sides of the processing frame. The middle crossbars of the T-shaped racks are positioned opposite each other, and the opposite sides of the T-shaped racks are fixed to the telescopic ends of the corresponding second hydraulic rods.

[0020] Preferably, a plurality of rollers are provided on the top of the placing rack for horizontal rotation, and the placing rack is arranged in the middle position of the slide rail at one end of the feeding rack.

[0021] Preferably, a bracket is fixedly provided at the lower part of the pressing frame, and the bracket is located at the bottom of the lower pressing plate. One end of the bracket is fixedly provided with a first fixed plate connected to the top end of the pressing frame, and the other end of the bracket is fixedly provided with a second fixed plate connected to the bottom end of the pressing frame.

[0022] The bottom end of the bracket is provided with a lifting extrusion plate, and the extrusion plate can pass through the bracket and abut against the bottom end of the lower pressing plate.

[0023] Preferably, support frames are fixedly installed on both sides of the bottom of the middle position of the pressing frame, and multiple limit rods are horizontally installed at the lower part of the pressing frame, and the end of each limit rod is fixed to the corresponding support frame. Multiple third hydraulic rods are vertically installed at the opposite ends of the support frame, which are fixed to the corresponding limit rods, and the telescopic ends of the third hydraulic rods are fixed to the bottom end of the extrusion plate.

[0024] A limiting groove is provided on the top of the pressing plate at the lower portion, and the top of the limiting groove is lower than the top of the display rack.

[0025] Guide rods are vertically fixed on both sides of one end of the upper part of the pressing frame, and each guide rod vertically passes through the end of the corresponding lower pressing plate. A sliding sleeve that slides with the guide rod is fixed on the pressing plate.

[0026] A plurality of fourth hydraulic rods are vertically fixedly provided on the top end of the pressing frame, and the telescopic ends of the fourth hydraulic rods are fixedly provided on the top end of the upper pressing plate.

[0027] Preferably, the heating unit includes a heating ring at the end of the pressing frame which can slide between the first fixed plate and the second fixed plate, the lower pressing plate can pass through the middle position of the heating ring, and an electromagnetic coil is fixedly provided on the inner wall of the heating ring.

[0028] Both sides of the pressing frame are provided with screws for horizontal rotation, and the screws pass through both sides of the corresponding heating ring and are threadedly connected to the heating ring. Both sides of the end of the pressing plate are fixed with second bidirectional motors that drive the corresponding screws to rotate.

[0029] A guide rod is fixedly provided on the pressing frame on the side of the lead screw, and the guide rod passes through both sides of the corresponding heating ring and is slidably connected with the heating ring.

[0030] Preferably, the defoaming unit includes a mounting plate fixedly mounted on the top of an upper pressing plate, a plurality of fifth hydraulic rods fixedly mounted on the bottom of the mounting plate. The upper pressing plate is vertically provided with a plurality of through-holes corresponding to the fifth hydraulic rods, and the telescopic ends of the fifth hydraulic rods are fixedly provided with vibrators that can pass through the through-holes.

[0031] A method for preparing a multilayer board, applied to the above-mentioned multilayer board preparation device, comprises the following steps:

[0032] a. Raw material preparation: Select suitable wood as raw material, and obtain veneer of certain specifications after pre-processing such as cutting, drying, and trimming;

[0033] b. Applying and arranging the adhesive: Using the above equipment, apply the adhesive evenly to the middle plate, and then evenly stack the single plates. At this time, the plate with the wire mesh is placed in the middle;

[0034] c. Tight fit before pressing: Use the above equipment to heat the wire mesh to activate the adhesive molecules and fill the gaps between the plates;

[0035] d. Pressing and defoaming treatment of the board: Use the above equipment to press the treated board and perform defoaming treatment at the same time;

[0036] e. Cooling and sanding: Cool the pressed sheet and finely sand it to make its surface smooth and flat;

[0037] f. Quality inspection and packaging: Finally, the finished panels are fully inspected for quality to ensure they meet relevant standards and customer requirements before being packaged and shipped.

[0038] Compared with the prior art, the present invention has at least the following beneficial effects:

[0039] 1. The present invention uses wire mesh as a structural support, which greatly enhances the overall rigidity and bending resistance of the multi-layer board. It is particularly suitable for application scenarios that need to carry heavy objects or withstand large external forces. At the same time, the presence of wire mesh can help evenly disperse the external pressure, prevent local excessive force from causing the board to break, and effectively limit the expansion of small cracks. Moreover, as a non-combustible material, wire mesh can block the spread of flames in the event of a fire, extend the fire resistance time of the board, and buy more time for personnel evacuation. In addition, the wire mesh forms a physical barrier to prevent insects and other small pests from entering the interior of the wood, while reducing moisture penetration and reducing the risk of mold growth.

[0040] 2. The present invention integrates an integrated operation process from adhesive application to pressing and defoaming treatment, with a high degree of automation, reducing manual intervention and improving production efficiency. The processing module ensures that the bottom of the single board is evenly covered with adhesive, thereby improving the bonding strength of the finished product. At the same time, the heating unit is combined with the preheating treatment of the middle layer of wire mesh, so that each layer of single board can be well fitted before pressing, reducing the formation of bubbles.

[0041] 3. The present invention ensures uniform pressure distribution through the upper and lower pressing plates that can be raised and lowered, while the heating unit in the middle accelerates the curing process of the adhesive, shortening the overall production cycle. At the same time, the vibration mode of the exciter effectively eliminates air bubbles generated during the pressing process, further improving the quality of the finished product.

[0042] 4. The present invention consists of multiple independent modules, which is convenient for installation, debugging and subsequent maintenance, and also supports function expansion and technology upgrade according to actual needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0044] Figure 1 It is an overall schematic diagram of the present invention;

[0045] Figure 2 This is a schematic diagram of the stacking of plates of the present invention;

[0046] Figure 3 This is a schematic diagram of the processing module structure of the present invention;

[0047] Figure 4 It is a schematic diagram of the roller position of the present invention;

[0048] Figure 5 It is a schematic diagram of the position of the magnetic seat of the present invention;

[0049] Figure 6 It is a structural schematic diagram of the pressing frame of the present invention;

[0050] Figure 7 This is an exploded schematic diagram of the internal structure of the press-fitting frame of the present invention;

[0051] Figure 8 It is a schematic structural diagram of the defoaming unit of the present invention.

[0052] In the figure: 1. Plate; 2. Processing rack; 3. Display rack; 4. Pressing rack;

[0053] 5. Processing module; 51. Coating box; 52. Heating plate; 53. Rack; 54. Roller; 55. Coating cotton; 56. Gear; 57. Guide groove; 58. Guide rail; 59. Bracket; 60. First bidirectional motor;

[0054] 6. Feeding rack; 7. Pressing plate;

[0055] 8. Heating unit; 81. Heating coil; 82. Electromagnetic coil; 83. Lead screw; 84. Second bidirectional motor; 85. Guide rod;

[0056] 9. Defoaming unit; 91. Mounting plate; 92. Fifth hydraulic rod; 93. Through hole; 94. Vibrator;

[0057] 10. Slide rail; 11. Roller; 12. Top plate; 13. First hydraulic rod; 14. Magnetic seat; 15. Hydraulic frame; 16. Oil circuit; 17. Hydraulic cylinder; 18. Second hydraulic rod; 19. T-shaped frame; 20. Roller; 21. Bracket; 22. First fixed plate; 23. Second fixed plate; 24. Extrusion plate; 25. Support frame; 26. Limit rod; 27. Third hydraulic rod; 28. Limit groove; 29. ​​Guide rod; 30. Sliding sleeve; 31. Fourth hydraulic rod. DETAILED DESCRIPTION

[0058] The multilayer board preparation device and preparation method of the present invention will be described in more detail below with reference to the accompanying drawings and through specific embodiments.

[0059] refer to Figures 1-8 The present invention uses wire mesh as a structural support, which greatly enhances the overall rigidity and bending resistance of the multi-layer board. It can also help to evenly disperse the pressure applied by the outside, prevent the board 1 from being broken due to excessive local force, effectively limit the expansion of small cracks, and block the spread of flames. The equipment integrates an integrated operation process with a high degree of automation, reduces manual intervention, improves production efficiency, and can improve the bonding strength of the finished product, so that each layer of single board can be well fitted before pressing, reduces bubble formation, and effectively eliminates air bubbles generated during the pressing process. It includes a board 1 with a multi-layer structure design, a processing rack 2, a display rack 3 and a pressing rack 4, and the display rack 3 is arranged in the middle position between the processing rack 2 and the pressing rack 4. The board 1 is provided with at least three layers, and the length and width dimensions of each layer of the board 1 are the same. The board 1 in the middle layer is fixed with at least one layer of wire mesh. First, place the bottom board 1 on the display rack 3.

[0060] By using wire mesh as structural support, the overall rigidity and bending resistance of the multi-layer board are greatly enhanced, which is particularly suitable for application scenarios that need to carry heavy objects or withstand large external forces. At the same time, the presence of wire mesh can help evenly disperse the external pressure, prevent local excessive force from causing the board 1 to break, and can effectively limit the expansion of small cracks. Moreover, as a non-combustible material, wire mesh can block the spread of flames in the event of a fire, extend the fire resistance time of the board 1, and buy more time for personnel evacuation. The wire mesh forms a physical barrier to prevent insects and other small pests from entering the wood, while reducing moisture penetration and reducing the risk of mold growth.

[0061] In order to automatically apply adhesive to the bottom of the middle layer of the plate 1, Figure 3It is shown that a processing module 5 for applying adhesive to the bottom surface of the plate 1 is provided at the top of the processing frame 2. The processing module 5 includes a paint box 51 fixedly provided horizontally at the top of the processing frame 2. The paint box 51 is a rectangular structure with an open top, and a heating plate 52 is fixedly provided inside the paint box 51. The heating plate 52 is a mature existing technology and will not be described in detail here. When in use, the adhesive is poured into the interior of the paint box 51, and the heating plate 52 is controlled to work so that the adhesive is always in a liquid state to facilitate subsequent application. Racks 53 are fixedly provided on both sides of the paint box 51, and a roller 54 is provided on the paint box 51. A paint cotton 55 that can abut against the bottom surface of the plate 1 is sleeved on the roller 54, and a gear 56 that meshes with the corresponding rack 53 is fixedly provided at both ends of the roller 54. A guide slot 57 is horizontally provided on the side of the paint box 51. A guide rail 58 is slidably mounted on the guide slot 57. A bracket 59 is fixedly mounted on the guide rail 58. A first bidirectional motor 60 is fixedly mounted on the bracket 59 to drive the corresponding gear 56 to rotate. The first bidirectional motor 60 is controlled to operate and drive the corresponding gear 56 to rotate. The two gears 56 rotate on the rack 53 to drive the roller 54 to move parallel to the paint box 51. At this time, the paint cotton 55 rolls in the paint box 51, thereby applying adhesive to the bottom of the plate 1. During this process, the first bidirectional motor 60 moves parallel to the paint box 51 by sliding the guide rail 58 in the guide slot 57. When it moves to the end, the first bidirectional motor 60 is controlled to reverse, causing the various parts to return to their original positions.

[0062] In order to realize the movement of the plate 1, Figure 3-Figure 5 It is given that the processing frame 2 is provided with a feeding frame 6 for moving the plate 1. Slide rails 10 are fixedly provided on both sides of the processing frame 2, and the feeding frame 6 is slidably provided on the slide rails 10. The bottom end of the feeding frame 6 is rotatably provided with a roller 11, and the roller 11 is in contact with the top of the slide rail 10. A top plate 12 is fixedly provided horizontally on the top of the feeding frame 6, and at least one first hydraulic rod 13 is fixedly provided vertically on the top plate 12. The telescopic ends of the first hydraulic rod 13 are fixedly provided with a magnetic seat 14 that can be in contact with the top of the plate 1. The magnetic seat 14 is a mature existing technology and will not be described in detail here. After applying a uniform adhesive to the bottom of the plate 1, the first hydraulic rod 13 and the magnetic seat 14 are controlled to work, and the magnetic seat 14 is fitted with the top of the plate 1, so that the plate 1 is adsorbed by the cooperation of the magnetic seat 14 and the wire mesh. Then, the feeding rack 6 is pushed to move on the slide rail 10 via the roller 11 , thereby placing the plate 1 above the bottom plate 1 placed on the display rack 3 .

[0063] A hydraulic frame 15 is fixed horizontally in the middle of the feed frame 6. An oil circuit 16 is provided inside the hydraulic frame 15. A hydraulic cylinder 17 connected to the oil circuit 16 is fixed vertically at the top of the top plate 12. Second hydraulic rods 18 are fixed horizontally at both ends of the hydraulic frames 15 on both sides of the processing frame 2. The second hydraulic rods 18 are connected to the oil circuit 16. T-shaped frames 19 that can support the plates 1 are provided on both sides of the processing frame 2. The middle cross bars of the T-shaped frames 19 are positioned relative to each other, and the opposite sides of the T-shaped frames 19 are fixed to the corresponding telescopic ends of the second hydraulic rods 18. When processing the plate 1 in the middle, the hydraulic cylinder 17 is controlled to operate, and the oil is transported to the second hydraulic rods 18 through the oil circuit 16, thereby moving the T-shaped frame 19 relatively. At this time, the plate 1 is supported by the T-shaped frame 19, which facilitates the subsequent application of the adhesive. When sheet 1 reaches the desired position above rack 3, hydraulic cylinder 17 is activated, moving T-shaped racks 19 away from each other, thereby releasing the support for sheet 1. At this point, first hydraulic rod 13 is activated, pushing sheet 1 downward to align with the bottom sheet 1. Then, magnetic base 14 and second hydraulic rod 18 are deactivated, releasing the restraints on the middle sheet 1. After returning all components to their original positions, adhesive can be applied to the top of the middle sheet 1. The top sheet 1 is then placed on top of the middle sheet 1, completing the multi-layer bonding process.

[0064] The top of the placing rack 3 is horizontally rotated with multiple rollers 20, and the placing rack 3 is set in the middle of the slide rail 10 at one end of the feeding rack 6. When the sheet 1 is completely fitted, the sheet 1 is pushed, thereby moving the sheet 1 to the inside of the pressing rack 4 through the rollers 20.

[0065] In order to achieve the lamination of multilayer boards, Figure 6-Figure 8 As shown, both the upper and lower parts of the pressing frame 4 are provided with a liftable pressing plate 7. A bracket 21 is fixedly provided at the lower part of the pressing frame 4. The bracket 21 is located at the bottom of the lower pressing plate 7. A first fixing plate 22 connected to the top of the pressing frame 4 is fixedly provided at one end of the bracket 21, and a second fixing plate 23 connected to the bottom of the pressing frame 4 is fixedly provided at the other end of the bracket 21. A liftable extrusion plate 24 is provided at the bottom end of the bracket 21. The extrusion plate 24 can pass through the bracket 21 and abut against the bottom end of the lower pressing plate 7.

[0066] Support frames 25 are fixedly provided on both sides of the bottom of the middle position of the pressing frame 4, and a plurality of limit rods 26 are horizontally provided at the lower part of the pressing frame 4, and the end of each limit rod 26 is fixed to the corresponding support frame 25. A plurality of third hydraulic rods 27 fixed to the corresponding limit rods 26 are vertically provided at the opposite ends of the support frame 25, and the telescopic ends of the third hydraulic rods 27 are fixed to the bottom end of the extrusion plate 24. A limit slot 28 is provided at the top of the lower pressing plate 7, and the top of the limit slot 28 is lower than the top of the display rack 3. The moving plate 1 is pushed onto the limit slot 28 on the pressing plate 7. During pressing, the third hydraulic rod 27 is controlled to work, and the extrusion plate 24 is moved upward, passing through the bracket 21 to push the lower pressing plate 7 upward.

[0067] Guide rods 29 are vertically fixed on both sides of one end of the upper portion of the pressing frame 4. Each guide rod 29 vertically passes through the end of the corresponding lower pressing plate 7. A sliding sleeve 30 that slides with the guide rod 29 is fixed on the pressing plate 7. When the pressing plate 7 rises, it moves on the guide rod 29 through the sliding sleeve 30 to reduce friction. A plurality of fourth hydraulic rods 31 are vertically fixed on the top of the pressing frame 4. The telescopic ends of the fourth hydraulic rods 31 are fixed to the top of the upper pressing plate 7. During pressing, the fourth hydraulic rods 31 are controlled to work and drive the upper pressing plate 7 to move downward, thereby cooperating with the lower pressing plate 7 to achieve pressing of the sheet 1. After pressing, each component is controlled to return to its original position.

[0068] In order to achieve a good fit before lamination, Figure 7It is shown that a horizontally movable heating unit 8 is provided in the middle of the pressing frame 4. The heating unit 8 includes a heating coil 81 which is provided at the end of the pressing frame 4 and can slide between a first fixed plate 22 and a second fixed plate 23. The lower pressing plate 7 can pass through the middle position of the heating coil 81. An electromagnetic coil 82 is fixedly provided on the inner wall of the heating coil 81. The electromagnetic coil 82 is a mature existing technology and will not be described in detail here. A lead screw 83 is provided on both sides of the pressing frame 4 for horizontal rotation. The lead screw 83 passes through both sides of the corresponding heating coil 81 and is threadedly connected to the heating coil 81. A second bidirectional motor 84 is fixedly provided on both sides of the end of the pressing plate 7 for driving the corresponding lead screw 83 to rotate. A guide rod 85 is fixedly provided on the pressing frame 4 on the side of the lead screw 83. The guide rod 85 passes through both sides of the corresponding heating coil 81 and is slidably connected to the heating coil 81. After sheet 1 is placed in retaining groove 28, second bidirectional motor 84 is activated, driving lead screw 83 to rotate, thereby moving heating coil 81 horizontally within press frame 4. During this process, the heating coil completely wraps around bracket 21. Simultaneously, electromagnetic coil 82 is activated to heat the wire mesh, activating the adhesive and filling the gaps between the layers of veneer, ensuring a perfect fit before pressing. After heating, second bidirectional motor 84 is reversed, returning the heating coil to its original position. Guide rods 85 provide guidance during this process.

[0069] In order to achieve defoaming during lamination, Figure 8 It is shown that the upper pressing plate 7 is provided with a defoaming unit 9 that can assist in pressing the multilayer board. The defoaming unit 9 includes a mounting plate 91 fixedly provided at the top of the upper pressing plate 7, and a plurality of fifth hydraulic rods 92 are fixedly provided at the bottom end of the mounting plate 91. A plurality of through holes 93 corresponding to the corresponding fifth hydraulic rods 92 are vertically opened on the upper pressing plate 7, and a vibrator 94 that can pass through the through hole 93 is fixedly provided at the telescopic end of the fifth hydraulic rod 92. During pressing, the fifth hydraulic rod 92 is controlled to work so that the vibrator 94 contacts the plate 1, and the vibrator 94 is controlled to work, thereby eliminating the air bubbles generated during the pressing process and further improving the quality of the finished product.

[0070] Instructions for using the multilayer board manufacturing apparatus of the present invention: First, place the bottom sheet 1 on the display rack 3. Pour adhesive into the coating cartridge 51 and control the heating plate 52 to keep the adhesive in a liquid state for subsequent application. Control the hydraulic cylinder 17 to deliver oil through the oil passage 16 to the second hydraulic rod 18, thereby moving the T-shaped rack 19 relative to the bottom sheet. At this point, place the middle sheet on the T-shaped rack 19, which supports the sheet 1 and facilitates subsequent application of the adhesive.

[0071] The first bidirectional motor 60 is controlled to operate, driving the corresponding gear 56. The two gears 56 rotate on the rack 53, driving the roller 54 to move parallel to the coating box 51. The coating pad 55 then rolls inside the coating box 51, applying adhesive to the bottom of the sheet 1. During this process, the first bidirectional motor 60 moves parallel to the coating box 51 by sliding the guide rail 58 within the guide slot 57. When it reaches the end, the first bidirectional motor 60 is controlled to reverse, returning all components to their original positions. After the adhesive is evenly applied to the bottom of the sheet 1, the first hydraulic rod 13 and magnetic base 14 are controlled to operate, bringing the magnetic base 14 into contact with the top of the sheet 1. The magnetic base 14 and the wire mesh work together to hold the sheet 1 in place. The feed rack 6 is then pushed, moving on the rail 10 via the roller 11, placing the sheet 1 above the bottom sheet 1 on the display rack 3. When the sheet 1 reaches the desired position above the display rack 3, the hydraulic cylinder 17 is controlled to move the T-shaped bracket 19 away from each other, releasing the support for the sheet 1. At this point, the first hydraulic rod 13 is activated, pushing the sheet 1 downward to mate with the bottom sheet 1. The magnetic base 14 and second hydraulic rod 18 are then deactivated, releasing the restraints on the middle sheet 1. The components are then returned to their original positions, and adhesive can be applied to the top of the middle sheet 1. The top sheet 1 is then placed on top of the middle sheet 1, completing the multi-layer bonding process.

[0072] When the sheet 1 is completely fitted, push the sheet 1, thereby moving the sheet 1 to the limiting groove 28 on the pressing plate 7 through the roller 20. Control the second bidirectional motor 84 to work and drive the screw 83 to rotate, thereby moving the heating coil 81 horizontally in the pressing frame 4. During this process, the heating coil completely wraps the bracket 21. At the same time, control the electromagnetic coil 82 to work and heat the wire mesh to activate the adhesive and fill the gaps between the layers of veneer so that the sheet 1 can be well fitted before pressing. After heating, control the second bidirectional motor 84 to reverse and return the heating coil to its position. During this process, the guide rod 85 is used for guiding.

[0073] During pressing, the third hydraulic rod 27 is controlled to operate, moving the extrusion plate 24 upward, pushing the lower pressing plate 7 upward through the bracket 21. When the pressing plate 7 rises, it moves on the guide rod 29 through the sliding sleeve 30 to reduce friction. During pressing, the fourth hydraulic rod 31 is controlled to operate, driving the upper pressing plate 7 downward, thereby cooperating with the lower pressing plate 7 to achieve pressing of the sheet 1. During pressing, the fifth hydraulic rod 92 is controlled to operate, so that the exciter 94 contacts the sheet 1, and the exciter 94 is controlled to operate, thereby eliminating air bubbles generated during the pressing process and further improving the quality of the finished product. After pressing, each component is controlled to return to its original position.

[0074] The present invention also provides a method for preparing a multilayer board, which is applied to the above-mentioned multilayer board preparation device. The multilayer board preparation method comprises the following steps:

[0075] a. Raw material preparation: Select suitable wood as raw material, and obtain veneer of certain specifications after pre-processing such as cutting, drying, and trimming;

[0076] b. Applying and arranging the adhesive: Using the above-mentioned equipment, evenly apply the adhesive to the sheet 1 in the middle position, and then evenly stack the single sheets. At this time, the sheet 1 with the wire mesh is placed in the middle position;

[0077] c. Tight fitting before lamination: Use the above-mentioned equipment to heat the wire mesh to activate the adhesive molecules and fill the gaps between the plates 1;

[0078] d. Pressing and defoaming the plate 1: pressing the treated plate 1 using the above-mentioned equipment, and performing defoaming treatment during pressing;

[0079] e. Cooling and sanding: Cooling the laminated sheet 1 and finely sanding it to make its surface smooth and flat;

[0080] f. Quality inspection and packaging: Finally, the finished plate 1 is subjected to a comprehensive quality inspection to ensure that it meets the relevant standards and customer requirements before packaging and shipment.

[0081] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning understood by persons of ordinary skill in the field to which the invention belongs. The use of "one" or "an" and other similar words in the specification and claims of this application does not necessarily indicate a quantitative limitation. "Include" or "comprising" and other similar words mean that the elements or objects preceding the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and other similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

[0082] The exemplary embodiments of the present invention are described in detail above with reference to preferred embodiments. However, it will be understood by those skilled in the art that, without departing from the concept of the present invention, various variations and modifications may be made to the above-mentioned specific embodiments, and various combinations of the various technical features and structures proposed in the present invention may be made without exceeding the scope of protection of the present invention.

Claims

1. A multilayer board preparation device, comprising a multilayer structured board (1), a processing frame (2), a placing frame (3) and a pressing frame (4), wherein the placing frame (3) is arranged in the middle of the processing frame (2) and the pressing frame (4); The top of the processing frame (2) is provided with a processing module (5) for applying adhesive to the bottom surface of the plate (1), and the processing module (5) includes a coating box (51) fixedly provided horizontally at the top of the processing frame (2), and the coating box (51) is a rectangular structure with an open top, and a heating plate (52) is fixedly provided inside the coating box (51), and racks (53) are fixedly provided on both sides of the coating box (51), and a roller (54) is provided on the coating box (51), and the roller ( 54) is provided with a coating cotton (55) that can abut against the bottom surface of the plate (1), and gears (56) that mesh with the corresponding racks (53) are fixedly provided at both ends of the roller (54), and a guide groove (57) is horizontally opened on the side of the coating box (51), and a guide rail (58) is slidably provided on the guide groove (57), and a bracket (59) is fixedly provided on the guide rail (58), and a first bidirectional motor (60) that drives the corresponding gear (56) to rotate is fixedly provided on the bracket (59); The processing frame (2) is provided with a feeding frame (6) for moving the plate (1); the upper and lower parts of the pressing frame (4) are both provided with lifting pressing plates (7); the middle part of the pressing frame (4) is provided with a horizontally movable heating unit (8); the upper pressing plate (7) is provided with a defoaming unit (9) for assisting the pressing of the multilayer board; The plate (1) is provided with at least three layers, the length and width of each layer of the plate (1) are the same, and the plate (1) in the middle layer is fixedly provided with at least one layer of wire mesh; Slide rails (10) are fixedly provided on both sides of the processing frame (2), the feeding frame (6) is slidably provided on the slide rails (10), and a roller (11) is rotatably provided at the bottom end of the feeding frame (6), and the roller (11) abuts against the top end of the slide rail (10); A top plate (12) is fixedly provided horizontally at the top of the feeding rack (6), and at least one first hydraulic rod (13) is fixedly provided vertically on the top plate (12), and a magnetic seat (14) capable of abutting against the top of the plate (1) is fixedly provided at the telescopic end of each of the first hydraulic rods (13).

2. The multilayer board manufacturing device according to claim 1, characterized in that: A hydraulic frame (15) is fixedly provided horizontally in the middle of the feeding frame (6), an oil circuit (16) is provided inside the hydraulic frame (15), a hydraulic cylinder (17) connected to the oil circuit (16) is fixedly provided vertically on the top of the top plate (12), and second hydraulic rods (18) are fixedly provided horizontally at both ends of the hydraulic frames (15) on both sides of the processing frame (2), and the second hydraulic rods (18) are connected to the oil circuit (16). T-shaped frames (19) capable of supporting the plate (1) are provided on both sides of the processing frame (2), and the middle cross bars of the T-shaped frames (19) are arranged relative to each other, and the opposite sides of the T-shaped frames (19) are fixedly provided with the corresponding telescopic ends of the second hydraulic rods (18).

3. The multilayer board manufacturing device according to claim 2, characterized in that: The top end of the placing rack (3) is provided with a plurality of rollers (20) for horizontal rotation, and the placing rack (3) is arranged at the middle position of the slide rail (10) at one end of the feeding rack (6).

4. The multilayer board manufacturing device according to claim 1, characterized in that: A bracket (21) is fixedly provided at the lower part of the pressing frame (4), and the bracket (21) is located at the bottom of the lower pressing plate (7). One end of the bracket (21) is fixedly provided with a first fixing plate (22) connected to the top end of the pressing frame (4), and the other end of the bracket (21) is fixedly provided with a second fixing plate (23) connected to the bottom end of the pressing frame (4); The bottom end of the bracket (21) is provided with a lifting extrusion plate (24), and the extrusion plate (24) can pass through the bracket (21) and abut against the bottom end of the lower pressing plate (7).

5. The multilayer board manufacturing device according to claim 4, characterized in that: Support frames (25) are fixedly provided on both sides of the bottom of the middle position of the pressing frame (4), and a plurality of limit rods (26) are horizontally provided at the lower part of the pressing frame (4), and the end of each limit rod (26) is fixedly provided with the corresponding support frame (25), and a plurality of third hydraulic rods (27) fixed with the corresponding limit rods (26) are vertically provided at the opposite ends of the support frame (25), and the telescopic ends of the third hydraulic rods (27) are fixedly provided with the bottom end of the extrusion plate (24); A limiting groove (28) is provided at the top of the pressing plate (7) at the lower portion, and the top of the limiting groove (28) is lower than the top of the display rack (3); Guide rods (29) are vertically fixed on both sides of one end of the upper portion of the pressing frame (4), and each guide rod (29) vertically penetrates the end of the corresponding lower pressing plate (7), and a sliding sleeve (30) is fixed on the pressing plate (7) and slides with the guide rod (29); A plurality of fourth hydraulic rods (31) are vertically fixedly arranged on the top end of the pressing frame (4), and the telescopic ends of the fourth hydraulic rods (31) are fixedly arranged on the top end of the upper pressing plate (7).

6. The multilayer board manufacturing device according to claim 1, characterized in that: The heating unit (8) includes a heating ring (81) which is provided at the end of a pressing frame (4) and can slide between a first fixed plate (22) and a second fixed plate (23); the pressing plate (7) at the lower part can pass through the middle position of the heating ring (81); and an electromagnetic coil (82) is fixedly provided on the inner wall of the heating ring (81).

7. The multilayer board manufacturing device according to claim 6, characterized in that: Both sides of the pressing frame (4) are provided with screws (83) for horizontal rotation, the screws (83) pass through both sides of the corresponding heating ring (81) and are threadedly connected to the heating ring (81), and both sides of the end of the pressing plate (7) are fixedly provided with second bidirectional motors (84) for driving the corresponding screws (83) to rotate; A guide rod (85) is fixedly provided on the pressing frame (4) on the side of the lead screw (83), and the guide rod (85) passes through both sides of the corresponding heating ring (81) and is slidably connected to the heating ring (81).

8. The multilayer board manufacturing device according to claim 1, characterized in that: The defoaming unit (9) includes a mounting plate (91) fixedly arranged at the top end of the upper pressing plate (7), a plurality of fifth hydraulic rods (92) fixedly arranged at the bottom end of the mounting plate (91), a plurality of through holes (93) adapted to the corresponding fifth hydraulic rods (92) are vertically opened on the upper pressing plate (7), and a vibrator (94) that can pass through the through hole (93) is fixedly arranged at the telescopic end of the fifth hydraulic rod (92).

9. A method for preparing a multilayer board, applied to a multilayer board preparation device according to any one of claims 1 to 8, characterized in that: The multilayer board method comprises the following steps: a. Raw material preparation: Select suitable wood as raw material, and obtain veneer of certain specifications after pre-processing such as cutting, drying, and trimming; b. Applying and arranging the adhesive: Using the above-mentioned equipment, evenly apply the adhesive to the plate (1) in the middle position, and then evenly stack the single plates. At this time, the plate (1) with the wire mesh is placed in the middle position; c. Tight fitting before lamination: using the above equipment to heat the wire mesh to activate the adhesive molecules and fill the gaps between the plates (1); d. Pressing and defoaming the plate (1): pressing the treated plate (1) using the above-mentioned equipment, and performing defoaming treatment while pressing; e. Cooling and sanding: Cooling the pressed plate (1) and finely sanding it to make its surface smooth and flat; f. Quality inspection and packaging: Finally, the finished panels (1) are subjected to a comprehensive quality inspection to ensure that they meet the relevant standards and customer requirements before being packaged and shipped.

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