Press-fit equipment and press-fit method for multi-layer board manufacturing

Abstract

The invention relates to the field of multilayer board manufacturing, in particular to a laminating device for multilayer board manufacturing and a laminating method.The laminating device comprises a fixed bottom frame, a fixed top plate is arranged above the fixed bottom frame, a mounting column is arranged at the bottom end of the fixed bottom frame, and an assembly column is fixedly arranged at the top end of the fixed top plate; a liftable press-fit assembly is arranged between the fixed bottom frame and the fixed top plate, and a moving assembly for taking and placing a multi-layer plate is arranged in the middle of the top end of the fixed top plate. New equipment units can be added at any time according to production requirements, so that rapid expansion and adjustment of a production line are achieved, meanwhile, the problems of uneven pressure, bubble residues, poor curing and the like in a traditional pressing process are solved, it is ensured that each multi-layer board can reach an ideal state, automatic taking and placing of the multi-layer boards are achieved, and the production efficiency is improved. Manual intervention is reduced, and production efficiency and safety are improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of multi-layer board preparation, and specifically relates to a laminating device and a laminating method for manufacturing multi-layer boards. Background Art

[0002] In the field of multi-layer board manufacturing, traditional laminating processes face a series of challenges. First, uneven pressure distribution leads to internal stress concentration, affecting the overall strength and stability of the board; second, incomplete penetration of the adhesive easily forms bubble residues, reducing the bonding effect; third, improper temperature control during the curing process can result in poor curing, affecting the quality of the final product. In addition, traditional multi-layer board laminating equipment is usually complex in structure and high in cost, making it difficult to meet the needs of small factories to flexibly expand production lines according to their own economic conditions. These factories often need a laminating device that can be configured on demand, is easy to expand, and is simple to operate to adapt to changing production requirements.

[0003] A Chinese patent with the application number 202310008748.5 discloses a multi-layer board laminating device, including a bottom plate, a frame, and a laminating plate arranged on the laminating machine body. The upper side wall of the bottom plate is fixedly connected with a plurality of legs. When laminating, the airbag can be inflated and expanded to abut against the peripheral side walls of the multi-layer board, which not only facilitates the positioning of the multi-layer board, but also can prevent glue from flowing out of the side of the multi-layer board during laminating, avoiding waste of glue. Moreover, after laminating, there is no need to clean the residual glue, which is more environmentally friendly and has higher efficiency. At the same time, after laminating, the airbag contracts and resets and no longer abuts against the side wall of the multi-layer board, facilitating the removal of the laminated multi-layer board, making it more convenient to use. And after laminating, the laminated multi-layer board can be lifted, preventing the multi-layer board from closely adhering to the workbench, thus facilitating its removal and making it more convenient to use.

[0004] A Chinese patent with the application number 202411809314.6 discloses a plywood production laminating device, a hydraulic power laminating component, and a hot pressing intermediate sandwich component. The hot pressing intermediate sandwich component is arranged on the hydraulic power laminating component. The hydraulic power laminating component includes a fixed bottom plate and a movable pressing plate, and the movable pressing plate is configured to move up and down relative to the fixed bottom plate. The movable pressing plate and the fixed bottom plate are used for hot pressing the plywood. The hot pressing intermediate sandwich component includes a sandwich plate arranged between the movable pressing plate and the fixed bottom plate, and the distance between the sandwich plate and the fixed bottom plate is adjustable. The sandwich plate is internally provided with heating pipes for heating the sandwich plate. The working position during the feeding process remains unchanged, and there is no need to perform climbing operations, making the feeding process more convenient and safe. It can also cooperate with various feeding machines to achieve automatic feeding.

[0005] However, the following problems still exist in actual applications, specifically:

[0006] 1. Lack of scalability and flexibility: These two patents do not fully consider the actual needs of small factories. The equipment does not have a modular design, making it difficult to purchase according to demand and flexibly expand. This means that factories face high cost pressure during initial investment, and when expanding the production line later, they need to purchase a complete set of equipment again, increasing operating costs.

[0007] 2. Limited degree of automation: Although both patents mention automated operation, in actual applications, they fail to fully achieve the automatic picking and placing function of multi-layer boards and still require a lot of manual intervention. This not only reduces production efficiency but also increases labor costs and safety hazards.

[0008] 3. The problems of uneven pressure distribution and poor curing have not been completely solved: Although these two patents have made improvements in improving pressure distribution and curing effects, they still do not reach the ideal state. Specifically, when processing boards of different thicknesses and materials, there may still be situations of excessive or insufficient local pressure, as well as poor curing phenomena caused by improper temperature control.

[0009] Therefore, how to overcome the above-mentioned technical problems and defects has become the key problem to be solved. Summary of the Invention

[0010] The object of the present invention is to overcome the defects described in the background technology, so as to realize a lamination device and a lamination method for manufacturing multi-layer boards, which can be applicable to small factories to flexibly purchase corresponding numbers of equipment according to their own economic situations, and can add new equipment units at any time according to production needs, so as to realize the rapid expansion and adjustment of the production line. At the same time, it solves the problems of uneven pressure, bubble residue, and poor curing existing in the traditional lamination process, ensures that each multi-layer board can reach an ideal state, and realizes the automatic picking and placing of multi-layer boards, reduces manual intervention, and improves production efficiency and safety.

[0011] To achieve the above object, the present invention adopts the following technical solutions: It includes a horizontally arranged fixed bottom frame, and a fixed top plate is horizontally arranged above the fixed bottom frame. Both the fixed bottom frame and the fixed top plate are rectangular structures. At the four corners of the bottom end of the fixed bottom frame, mounting columns are vertically and fixedly arranged, and at the four corners of the top end of the fixed top plate, assembly columns adapted to the mounting columns are fixedly arranged.

[0012] A liftable lamination component is arranged between the fixed bottom frame and the fixed top plate, and a moving component for picking and placing multi-layer boards is arranged at the middle position of the top end of the fixed top plate.

[0013] Preferably, support columns are vertically and fixedly arranged at the four corners of the top end of the fixed bottom frame, and the top ends of the support columns are respectively fixedly arranged at the four corners of the bottom end of the fixed top plate.

[0014] An occlusion cover is sleeved outside the fixed chassis.

[0015] Preferably, the pressing assembly includes a lifting bin horizontally arranged between the fixed chassis and the fixed top plate. The lifting bin is a rectangular structure with openings at both the top and bottom. A first rubber pad that can abut against the bottom end of the fixed top plate is fixedly arranged at the top end of the lifting bin.

[0016] A bottom plate is horizontally and fixedly arranged at the bottom end of the lifting bin.

[0017] Preferably, the pressing assembly includes a lifting unit. The lifting unit includes a supporting plate horizontally and fixedly arranged at the bottom end of the bottom plate. The supporting plate is in a cross structure, and its four ends are respectively located at the middle positions of the four sides of the bottom plate.

[0018] At least four first hydraulic cylinders are fixedly arranged at the top end of the fixed chassis. The telescopic parts of the first hydraulic cylinders are respectively fixedly arranged at the four corners of the bottom end of the corresponding bottom plate.

[0019] Guide rods are vertically and fixedly arranged at the four corners of the top end of the fixed chassis. The top ends of the guide rods are respectively fixedly arranged at the four corners of the bottom end of the corresponding fixed top plate. Sliding sleeves sleeved on the guide rods are fixedly arranged at the four corner sides of the lifting bin.

[0020] Preferably, the pressing assembly includes a pressing unit. The pressing unit includes a pressing plate horizontally arranged at the middle position of the lifting bin. At least two supporting plates for restricting the lowest position of the pressing plate are horizontally and fixedly arranged inside the pressing plate. The pressing plate is designed to be similar in shape to the lifting bin, and there is a gap between them. A second rubber pad for blocking the gap is fixedly arranged at the side of the pressing plate. A control cavity is formed between the pressing plate and the bottom plate.

[0021] A through groove is horizontally opened at the side of the lifting bin, and the through groove is communicated with the inside of the control cavity.

[0022] Preferably, the pressing assembly includes a driving unit. The driving unit includes a second hydraulic cylinder fixedly arranged at the middle position of the top end of the bottom plate. The second hydraulic cylinder is in a rectangular structure, and a lifting plate is fixedly arranged at the top end of its telescopic part. The lifting plate is in a cross structure, and its four ends are respectively fixedly arranged at the middle positions of the bottom sides of the four sides of the pressing plate.

[0023] Auxiliary cylinders are vertically and fixedly arranged at the four corners of the top end of the bottom plate. The telescopic parts of the auxiliary cylinders are respectively fixedly arranged at the four corners of the bottom end of the pressing plate.

[0024] A plurality of third hydraulic cylinders are fixedly arranged at the top end of the bottom plate at the side of the lifting plate. The telescopic parts of the third hydraulic rods are all fixedly arranged at the bottom end of the pressing plate. The third hydraulic cylinders are evenly arranged inside the control cavity.

[0025] Preferably, the pressing assembly includes a detection unit, and the detection unit includes a plurality of pressure sensors fixedly arranged on the pressing plate, and the pressure sensors are uniformly arranged inside the control cavity.

[0026] The detection unit further includes a mounting groove opened at the top end of the lifting plate, and a plurality of temperature sensors are fixedly arranged on the mounting groove.

[0027] Preferably, the pressing assembly further includes a fitting unit, and the fitting unit includes a plurality of ultrasonic generators fixedly arranged at the bottom end of the pressing plate, and the ultrasonic generators are uniformly arranged inside the control cavity.

[0028] An adsorption groove is opened on the side of the lifting bin, and the adsorption groove is located on the side of the upper lifting bin before the pressing plate rises. An adsorption pipe is fixedly arranged on the adsorption groove, and the adsorption pipe is communicated with a vacuum pump arranged outside.

[0029] Preferably, the moving assembly includes a guide rail fixedly arranged at the top end of the fixed top plate. A sliding plate is arranged inside the guide rail and slides along the width direction of the fixed top plate. A rack is fixedly arranged at the top end of the sliding plate, and a motor is fixedly arranged at the top end of the fixed top plate. A gear meshing with the rack is fixedly arranged at the output end of the motor. A top cover for shielding the motor is fixedly arranged at the top end of the fixed top plate.

[0030] A moving plate that can vertically lift relative to the sliding plate is horizontally arranged at the end of the sliding plate. At least two fourth hydraulic cylinders are vertically and fixedly arranged at the top end of the end of the sliding plate, and the telescopic part of the fourth hydraulic cylinder vertically penetrates through the sliding plate and is fixedly arranged with the top end of the moving plate.

[0031] An I-shaped frame is fixedly arranged at the bottom end of the end of the moving plate facing the fixed top plate. Suction cups are fixedly arranged at the four corners of the bottom end of the I-shaped frame. A suction pump is fixedly arranged at the top end of the sliding plate. An air inlet pipe is communicated with the air inlet of the suction pump, and the air inlet pipe is communicated with the corresponding suction cup.

[0032] A pressing method, applied to the above-mentioned pressing equipment for manufacturing multi-layer boards, includes the following steps:

[0033] a. Material preparation: Select appropriate single boards, evenly apply an environment-friendly adhesive on their surfaces, stack the single boards neatly according to the designed number of layers, and ensure the alignment between each layer and the consistency of the adhesive application.

[0034] b. Equipment preparation: According to the specific size of the multi-layer board, adjust the distance between the fixed bottom frame and the fixed top plate to ensure that the pressing assembly can work smoothly. Turn on all hydraulic cylinders, air cylinders and related control systems to ensure that all components are in a standby state.

[0035] c, Preliminary positioning and fixation: The stacked multi-layer boards are moved from the outside to the center position of the working area of the lamination assembly by the moving component. After that, the moving component is moved out of the working area, and the first hydraulic cylinder is used to drive the lifting bin to rise so that the first rubber pad gently touches the top of the multi-layer board;

[0036] d, Auxiliary lamination and preliminary lamination: Start the ultrasonic generator in the bonding unit to apply ultrasonic vibration at a specific frequency (for example, 20 kHz to 40 kHz) to the multi-layer board, and start the vacuum pump set outside to evacuate the working area to promote the uniform penetration of the adhesive between the boards and reduce the formation of bubbles. The second hydraulic cylinder drives the lamination plate to rise to start the preliminary lamination process, applying a low pressure (0.1 MPa) for 3 to 5 minutes to initially remove air and fix the positions of each layer. During this process, the pressure sensor monitors the pressure distribution at the bottom of the lamination plate in real time, and then pressurizes, and dynamically adjusts the pressure magnitude through the auxiliary cylinder and the third hydraulic cylinder, while ensuring that the lamination sequence is from the middle to both sides to ensure uniform lamination;

[0037] e, Cooling and sanding: Precise lamination and curing: Based on the pressure and temperature data provided by the detection unit, the central control system further optimizes the lamination parameters, including pressure magnitude, holding time, and temperature control, etc. If necessary, the multi-layer board can be heated in zones using a heating device to ensure that the adhesive cures within the optimal temperature range (usually 80 °C to 120 °C);

[0038] f, Cooling and final inspection: After the lamination is completed, the temperature is gradually reduced to room temperature, and a constant pressure is maintained during this period until the board is completely cured to avoid product deformation or increased internal stress caused by sudden temperature changes. The finished product is taken out using the moving component for comprehensive quality inspection, including physical property tests (such as flexural strength, bonding strength, etc.) and appearance inspection to ensure that all products meet the standard requirements.

[0039] Compared with the prior art, the present invention has at least the following beneficial effects:

[0040] 1. In the present invention, mounting columns are provided at the four corners of the bottom end of the fixed chassis, and mating assembly columns are provided at the four corners of the top end of the fixed top plate, so that multiple devices can be conveniently stacked. It is suitable for small factories to flexibly purchase corresponding numbers of devices according to their own economic situations, and new device units can be added at any time according to production requirements, thereby realizing the rapid expansion and adjustment of the production line. At the same time, the modular structure design can improve the overall stability and reliability of the device, simplify the maintenance and replacement process, and reduce the maintenance cost and downtime.

[0041] 2. By combining the use of the first hydraulic cylinder, the auxiliary cylinder, and the third hydraulic cylinder, and combining with the pressure sensor to monitor and dynamically adjust the pressure distribution at the bottom of the pressing plate in real time, the present invention ensures that each area can obtain the optimal pressure distribution during the entire pressing process. This precise pressure control method greatly reduces the phenomenon of internal stress concentration, improves the quality and consistency of the final product, and adopts a pressing sequence from the middle to both sides to ensure uniform pressing, effectively avoiding problems such as material damage or deformation caused by excessive local pressure.

[0042] 3. The present invention starts the ultrasonic generator in the bonding unit to apply ultrasonic vibrations with a specific frequency to the multi-layer board, which can promote the uniform penetration of the adhesive between the boards, reduce the formation of bubbles, enhance the bonding strength and overall stability. At the same time, using the vacuum pump set externally to evacuate the working area, further removing air and optimizing the penetration effect of the adhesive to ensure the tight combination of each layer of veneer.

[0043] 4. The present invention can heat the multi-layer board in zones through the heating device set externally to ensure that the adhesive cures within the optimal temperature range (usually 80°C to 120°C). This zone heating method not only improves the curing efficiency but also reduces energy consumption, achieving the goal of energy conservation and environmental protection. Combining with the data feedback from the temperature sensor and pressure sensor in the detection unit, the central control system can further optimize the pressing parameters, including the magnitude of pressure, holding time, and temperature control, etc., to ensure that each multi-layer board can reach the ideal curing state.

[0044] 5. The present invention realizes the automatic picking and placing of the multi-layer board through the moving assembly composed of the guide rail, the sliding plate, the moving plate, the I-beam and the suction cup on it, reduces manual intervention, improves production efficiency and safety, and the entire equipment is equipped with an advanced hydraulic system, an electrical control system and a working state monitoring system for other key components to ensure the long-term stable operation of the equipment and can be intelligently adjusted according to actual needs to meet the production tasks of multi-layer boards with different specifications and requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention. In the drawings:

[0046] Figure 1 is a schematic diagram of the use state of the present invention;

[0047] Figure 2 is a schematic diagram of the whole of the present invention;

[0048] Figure 3 is a schematic diagram of the position of the first hydraulic cylinder of the present invention;

[0049] Figure 4 Schematic diagram of the position of the pressing plate of the present invention;

[0050] Figure 5 Schematic diagram of the internal structure of the control cavity of the present invention;

[0051] Figure 6 Schematic diagram of the position of the through groove of the present invention;

[0052] Figure 7 Schematic diagram of the picking and placing state of the multi-layer board of the present invention;

[0053] Figure 8 Schematic diagram of the structure of the moving component of the present invention.

[0054] In the figure: 1, fixed chassis; 2, fixed top plate; 3, mounting column; 4, assembly column;

[0055] 5, pressing component; 51, lifting bin; 52, first rubber pad; 53, bottom plate; 54, lifting unit; 541, support plate; 542, first hydraulic cylinder; 543, guide rod; 544, sliding sleeve;

[0056] 55, pressing unit; 551, pressing plate; 553, second rubber pad; 554, control cavity; 555, through groove;

[0057] 56, driving unit; 561, second hydraulic cylinder; 562, lifting plate; 563, auxiliary cylinder; 564, third hydraulic cylinder;

[0058] 57, detection unit; 571, pressure sensor; 572, mounting groove; 573, temperature sensor;

[0059] 58, fitting unit; 581, ultrasonic generator; 582, adsorption groove; 583, adsorption pipe;

[0060] 6, moving component; 61, guide rail; 62, sliding plate; 63, rack; 64, motor; 65, gear; 66, top cover plate; 67, moving plate; 68, fourth hydraulic cylinder; 69, I-shaped frame; 70, suction cup; 71, air extraction pump; 72, intake pipe;

[0061] 7, support column; 8, shielding cover. Detailed implementation manners

[0062] The multi-layer board manufacturing pressing equipment and pressing method of the present invention will be described in more detail below with reference to the accompanying drawings and through specific implementation manners.

[0063] Reference Figures 1-8, the present invention can be applied to small factories to flexibly purchase corresponding quantities of equipment according to their own economic conditions, and can add new equipment units at any time according to production requirements, so as to achieve rapid expansion and adjustment of the production line. At the same time, it solves the problems of uneven pressure, bubble residue, and poor curing existing in the traditional lamination process, ensures that each multi-layer board can reach an ideal state, and realizes automatic picking and placing of multi-layer boards, reduces manual intervention, and improves production efficiency and safety. It includes a horizontally arranged fixed bottom frame 1, and a fixed top plate 2 is horizontally arranged above the fixed bottom frame 1. Both the fixed bottom frame 1 and the fixed top plate 2 are rectangular structures. Installation columns 3 are vertically and fixedly arranged at the four corners of the bottom end of the fixed bottom frame 1, and assembly columns 4 adapted to the installation columns 3 are fixedly arranged at the four corners of the top end of the fixed top plate 2. By arranging installation columns 3 at the four corners of the bottom end of the fixed bottom frame 1 and arranging corresponding assembly columns 4 at the four corners of the top end of the fixed top plate 2, multiple devices can be conveniently stacked, which is suitable for small factories to flexibly purchase corresponding quantities of equipment according to their own economic conditions, and can add new equipment units at any time according to production requirements, so as to achieve rapid expansion and adjustment of the production line. At the same time, the modular structure design can improve the overall stability and reliability of the equipment, simplify the maintenance and replacement process, and reduce the maintenance cost and downtime.

[0064] Support columns 7 are vertically and fixedly arranged at the four corners of the top end of the fixed bottom frame 1, and the top ends of the support columns 7 are respectively fixedly arranged at the four corners of the bottom end of the fixed top plate 2. It can adjust the distance between the fixed bottom frame 1 and the fixed top plate 2 to fix the positions of the fixed bottom frame 1 and the fixed top plate 2. A shielding cover 8 is sleeved outside the fixed bottom frame 1. It shields the internal structure to prevent foreign objects from entering the interior.

[0065] In order to realize the lamination of multi-layer boards, by Figures 3-6Given that a liftable pressing component 5 is provided between the fixed chassis 1 and the fixed top plate 2. The pressing component 5 includes a lifting chamber 51 horizontally arranged between the fixed chassis 1 and the fixed top plate 2. The lifting chamber 51 is a rectangular structure with openings at both the top and bottom. A first rubber pad 52 that can abut against the bottom end of the fixed top plate 2 is fixedly arranged at the top end of the lifting chamber 51. A bottom plate 53 is horizontally and fixedly arranged at the bottom end of the lifting chamber 51. The pressing component 5 includes a lifting unit 54. The lifting unit 54 includes a support plate 541 horizontally and fixedly arranged at the bottom end of the bottom plate 53. The support plate 541 is in a cross shape and its four ends are respectively located at the middle positions of the four sides of the bottom plate 53. At least four first hydraulic cylinders 542 are fixedly arranged at the top end of the fixed chassis 1. The telescopic parts of the first hydraulic cylinders 542 are respectively fixedly arranged at the four corners of the bottom end of the corresponding bottom plate 53. Guide rods 543 are vertically and fixedly arranged at the four corners of the top end of the fixed chassis 1. The top ends of the guide rods 543 are respectively fixedly arranged at the four corners of the bottom end of the corresponding fixed top plate 2. Sliding sleeves 544 sleeved on the guide rods 543 are fixedly arranged at the four corner sides of the lifting chamber 51.

[0066] The pressing component 5 includes a pressing unit 55. The pressing unit 55 includes a pressing plate 551 horizontally arranged at the middle position of the lifting chamber 51. At least two support plates 541 that limit the lowest position of the pressing plate 551 are horizontally and fixedly arranged inside the pressing plate 551. By using the support plates 541 to limit the lowest position of the pressing plate 551, it is convenient to place the multi-layer board on the pressing plate 551. The pressing plate 551 and the lifting chamber 51 are designed in an imitation shape and there is a gap between them. A second rubber pad 553 for sealing the gap is fixedly arranged at the side of the pressing plate 551. A control cavity 554 is formed between the pressing plate 551 and the bottom plate 53. A through groove 555 is horizontally opened at the side of the lifting chamber 51. The through groove 555 is connected to the inside of the control cavity 554. It is convenient to route the internal structure through the through groove 555.

[0067] After the multi-layer board is placed on the pressing plate 551, control the first hydraulic cylinder 542 to work. Drive the lifting chamber 51 to rise along the guide rod 543 through the support plate 541, so that the first rubber pad 52 is in contact with the fixed top plate 2. At this time, an operation cavity is formed between the upper part of the lifting chamber 51 and the bottom end of the fixed top plate 2 through the pressing plate 551, the fixed top plate 2, the first rubber pad 52 and the second rubber pad 553, which is convenient for subsequent defoaming operations.

[0068] The pressing assembly 5 includes a driving unit 56. The driving unit 56 includes a second hydraulic cylinder 561 fixedly arranged at the middle position of the top end of the bottom plate 53. The second hydraulic cylinder 561 is of a rectangular structure, and a lifting plate 562 is fixedly arranged at the top end of its telescopic part. The lifting plate 562 is of a cross structure, and its four ends are respectively fixedly arranged at the middle positions of the bottom edges of the pressing plate 551. At the four corners of the top end of the bottom plate 53, auxiliary cylinders 563 are vertically fixedly arranged. The telescopic parts of the auxiliary cylinders 563 are fixedly arranged at the four corners of the bottom end of the pressing plate 551. At the top end of the bottom plate 53 on the side of the lifting plate 562, a plurality of third hydraulic cylinders 564 are fixedly arranged. The telescopic parts of the third hydraulic rods are fixedly arranged at the bottom end of the pressing plate 551. The third hydraulic cylinders 564 are evenly arranged inside the control cavity 554. After defoaming treatment, control the second hydraulic cylinder 561 to work, drive the pressing plate 551 to rise through the lifting plate 562, start the preliminary pressing process, apply a lower pressure (0.1 MPa), and last for 3 to 5 minutes to initially remove air and fix the positions of each layer. Then apply pressure, and dynamically adjust the pressure magnitude through the auxiliary cylinders 563 and the third hydraulic cylinders 564, while ensuring that the pressing sequence is from the middle to both sides to ensure uniform pressing.

[0069] To assist in the pressing of multi-layer boards, it is given by Figures 4-6 The pressing assembly 5 further includes a detection unit 57. The detection unit 57 includes a plurality of pressure sensors 571 fixedly arranged on the pressing plate 551. The pressure sensors 571 are evenly arranged inside the control cavity 554. The detection unit 57 further includes an installation groove 572 opened at the top end of the lifting plate 562. A plurality of temperature sensors 573 are fixedly arranged on the installation groove 572. Based on the pressure and temperature data provided by the detection unit 57, the central control system further optimizes the pressing parameters, including the pressure magnitude, holding time, and temperature control, etc. If necessary, the multi-layer board can be heated in zones by a heating device to ensure that the adhesive cures within the optimal temperature range (usually 80°C to 120°C).

[0070] The pressing assembly 5 further includes a fitting unit 58. The fitting unit 58 includes a plurality of ultrasonic generators 581 fixedly arranged at the bottom end of the pressing plate 551. The ultrasonic generators 581 are evenly arranged inside the control cavity 554. An adsorption groove 582 is opened on the side of the lifting bin 51. The adsorption groove 582 is located on the side of the upper part of the lifting bin 51 before the pressing plate 551 rises. An adsorption pipe 583 is fixedly arranged on the adsorption groove 582. The adsorption pipe 583 is connected to a vacuum pump arranged outside. Start the ultrasonic generators 581 in the fitting unit 58 to apply ultrasonic vibrations at a specific frequency (such as 20 kHz to 40 kHz) to the multi-layer board, and start the vacuum pump arranged outside to evacuate the working area to promote the uniform penetration of the adhesive between the boards and reduce the formation of bubbles.

[0071] In order to realize the automatic picking and placing of multi-layer boards, it is provided by Figure 1 , Figure 2 and Figure 7 , Figure 8 The middle position at the top end of the fixed top plate 2 is provided with a moving component 6 for picking and placing multi-layer boards. The moving component 6 includes a guide rail 61 fixedly arranged at the top end of the fixed top plate 2. Inside the guide rail, there is a sliding plate 62 that slides along the width direction of the fixed top plate 2. At the top end of the sliding plate 62, a rack 63 is fixedly arranged. At the top end of the fixed top plate 2, a motor 64 is fixedly arranged. At the output end of the motor 64, a gear 65 meshing with the rack 63 is fixedly arranged. At the top end of the fixed top plate 2, a top cover plate 66 for shielding the motor 64 is fixedly arranged. At the end of the sliding plate 62, a moving plate 67 that can vertically lift relative to the sliding plate 62 is horizontally arranged. At the top end of the end of the sliding plate 62, at least two fourth hydraulic cylinders 68 are vertically fixedly arranged. The telescopic part of the fourth hydraulic cylinder 68 vertically penetrates the sliding plate 62 and is fixedly arranged with the top end of the moving plate 67. At the bottom end of the end of the moving plate 67 facing the fixed top plate 2, an I-shaped frame 69 is fixedly arranged. At the four corners of the bottom end of the I-shaped frame 69, suction cups 70 are fixedly arranged. At the top end of the sliding plate 62, an air extraction pump 71 is fixedly arranged. The air inlet of the air extraction pump 71 is communicated with an air inlet pipe 72, and the air inlet pipe 72 is communicated with the corresponding suction cup 70.

[0072] Control the air extraction pump 71 and the fourth hydraulic cylinder 68 to work, so as to suck the multi-layer board through the suction cup 70. Then control the motor 64 to work, so as to drive the sliding plate 62 to move through the gear 65 and the rack 63, and move the multi-layer board from the outside to the center position of the working area of the pressing component 5. After that, move the moving component 6 out of the working area. After the pressing is completed, take the pressing plate 551 from the working area to the outside through the suction cup 70.

[0073] Instructions for using the pressing equipment for manufacturing multi-layer boards of the present invention; First, control the air extraction pump 71 and the fourth hydraulic cylinder 68 to work, so as to suck the multi-layer board through the suction cup 70. Then control the motor 64 to work, so as to drive the sliding plate 62 to move through the gear 65 and the rack 63, and move the multi-layer board from the outside to the center position of the working area of the pressing component 5. After that, move the moving component 6 out of the working area.

[0074] Control the operation of the first hydraulic cylinder 542, drive the lifting bin 51 to rise along the guide rod 543 through the pallet 541, so that the first rubber pad 52 is in contact with the fixed top plate 2. At this time, an operation cavity is formed between the upper part of the lifting bin 51 and the bottom end of the fixed top plate 2 through the pressing plate 551, the fixed top plate 2, the first rubber pad 52, and the second rubber pad 553, which is convenient for subsequent defoaming operations. Start the ultrasonic generator 581 in the fitting unit 58, apply ultrasonic vibration with a specific frequency (for example, 20 kHz to 40 kHz) to the multilayer board, and start the vacuum pump set outside to evacuate the working area, promoting the uniform penetration of the adhesive between the boards and reducing the formation of bubbles. After the defoaming treatment, control the operation of the second hydraulic cylinder 561, drive the pressing plate 551 to rise through the lifting plate 562, and start the preliminary pressing process, applying a low pressure (0.1 MPa) for 3 to 5 minutes to initially remove air and fix the positions of each layer. Then, apply pressure and dynamically adjust the pressure magnitude through the auxiliary cylinder 563 and the third hydraulic cylinder 564, while ensuring that the pressing sequence is from the middle to both sides to ensure uniform pressing. During this process, based on the pressure and temperature data provided by the detection unit 57, the central control system further optimizes the pressing parameters, including the pressure magnitude, holding time, and temperature control, etc. If necessary, the multilayer board can be heated in zones using a heating device to ensure that the adhesive cures within the optimal temperature range (usually 80 °C to 120 °C).

[0075] After the pressing is completed, use the suction cup 70 to take the pressing plate 551 from the working area to the outside.

[0076] The present invention also provides a pressing method, which is applied to the pressing equipment for manufacturing the above-mentioned multilayer board. The multilayer board pressing method includes the following steps:

[0077] a. Material preparation: Select appropriate single boards, evenly apply an environmentally friendly adhesive on their surfaces, stack the single boards neatly according to the designed number of layers, and ensure the alignment between each layer and the consistency of the adhesive application;

[0078] b. Equipment preparation: According to the specific size of the multilayer board, adjust the distance between the fixed bottom frame 1 and the fixed top plate 2 to ensure that the pressing assembly 5 can work smoothly. Turn on all hydraulic cylinders, cylinders, and related control systems to ensure that all components are in the standby state;

[0079] c. Preliminary positioning and fixing: Move the stacked multilayer board from the outside to the center position of the working area of the pressing assembly 5 through the moving assembly 6, then move the moving assembly 6 out of the working area, and use the first hydraulic cylinder 542 to drive the lifting bin 51 to rise so that the first rubber pad 52 gently touches the top of the multilayer board;

[0080] d, Auxiliary Pressing and Preliminary Pressing: Start the ultrasonic generator 581 in the laminating unit 58 to apply ultrasonic vibrations at a specific frequency (e.g., 20 kHz to 40 kHz) to the multilayer board, and start the vacuum pump set externally to evacuate the working area, promoting the uniform penetration of the adhesive between the boards, reducing the formation of bubbles. The second hydraulic cylinder 561 drives the pressing plate 551 to rise, starting the preliminary pressing process, applying a low pressure (0.1 MPa) for 3 to 5 minutes to initially remove air and fix the positions of each layer. During this process, the pressure sensor 571 monitors the pressure distribution at the bottom of the pressing plate 551 in real time, and then pressurizes, and dynamically adjusts the pressure magnitude through the auxiliary cylinder 563 and the third hydraulic cylinder 564, while ensuring that the pressing sequence is from the middle to both sides to ensure uniform pressing;

[0081] e, Cooling and Sanding: Precise Pressing and Curing: Based on the pressure and temperature data provided by the detection unit 57, the central control system further optimizes the pressing parameters, including the pressure magnitude, holding time, and temperature control, etc. If necessary, the multilayer board can be heated in zones using a heating device to ensure that the adhesive cures within the optimal temperature range (usually 80°C to 120°C);

[0082] f, Cooling and Final Inspection: After the pressing is completed, gradually reduce the temperature to room temperature, maintaining a constant pressure until the board is completely cured, avoiding product deformation or increased internal stress caused by sudden temperature changes. Use the moving component 6 to take out the finished product and conduct a comprehensive quality inspection, including physical property tests (such as flexural strength, bonding strength, etc.) and appearance inspection to ensure that all products meet the standard requirements.

[0083] Unless otherwise defined, the technical terms or scientific terms used herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which this invention pertains. As used in the specification and claims of this application, words such as "a" or "an" do not necessarily denote a limitation of quantity. Words such as "comprising" or "including" mean that the elements or items appearing before this word cover the elements or items listed after this word and their equivalents, without excluding other elements or items. Words such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

[0084] The exemplary embodiments of the present invention have been described in detail above with reference to the preferred embodiments. However, those skilled in the art can understand that without departing from the concept of the present invention, various modifications and variations can be made to the above specific embodiments, and various combinations can be made to the technical features and structures proposed by the present invention, without exceeding the protection scope of the present invention.

Claims

1. A lamination device for manufacturing a multilayer board, comprising a horizontally arranged fixed chassis (1), above which a fixed top plate (2) is horizontally arranged. Both the fixed chassis (1) and the fixed top plate (2) are rectangular structures. At the four corners of the bottom end of the fixed chassis (1), mounting columns (3) are vertically and fixedly arranged, and at the four corners of the top end of the fixed top plate (2), fitting columns (4) adapted to the mounting columns (3) are fixedly arranged. A liftable lamination assembly (5) is arranged between the fixed chassis (1) and the fixed top plate (2), and a moving assembly (6) for picking and placing the multilayer board is arranged at the middle position of the top end of the fixed top plate (2).

2. The lamination equipment for manufacturing a multilayer board according to claim 1, wherein: Support columns (7) are vertically and fixedly arranged at the four corners of the top end of the fixed chassis (1), and the top ends of the support columns (7) are respectively fixedly arranged at the four corners of the bottom end of the fixed top plate (2). A shielding cover (8) is sleeved outside the fixed chassis (1).

3. A lamination device for manufacturing a multilayer board according to claim 1, characterized in that: The lamination assembly (5) includes a lift bin (51) horizontally arranged between the fixed chassis (1) and the fixed top plate (2). The lift bin (51) is a rectangular structure with openings at the top and bottom, and a first rubber pad (52) that can abut against the bottom end of the fixed top plate (2) is fixedly arranged at the top end of the lift bin (51). A bottom plate (53) is horizontally and fixedly arranged at the bottom end of the lift bin (51).

4. A lamination device for manufacturing a multi-layer board according to claim 3, characterized in that: The lamination assembly (5) includes a lifting unit (54). The lifting unit (54) includes a support plate (541) horizontally and fixedly arranged at the bottom end of the bottom plate (53). The support plate (541) is in a cross shape, and its four ends are respectively located at the middle positions of the four sides of the bottom plate (53). At least four first hydraulic cylinders (542) are fixedly arranged at the top end of the fixed chassis (1), and the telescopic parts of the first hydraulic cylinders (542) are respectively fixedly arranged at the four corners of the bottom end of the corresponding bottom plate (53). Guide rods (543) are vertically and fixedly arranged at the four corners of the top end of the fixed chassis (1), and the top ends of the guide rods (543) are respectively fixedly arranged at the four corners of the bottom end of the corresponding fixed top plate (2). Slide sleeves (544) sleeved on the guide rods (543) are fixedly arranged at the four corner sides of the lift bin (51).

5. The lamination device for manufacturing a multilayer board according to claim 4, characterized in that: The lamination assembly (5) includes a lamination unit (55). The lamination unit (55) includes a lamination plate (551) horizontally arranged at the middle position of the lift bin (51). At least two support plates (541) for restricting the lowest position of the lamination plate (551) are horizontally and fixedly arranged inside the lamination plate (551). The lamination plate (551) and the lift bin (51) are designed in an imitation shape and there is a gap between them. A second rubber pad (553) for blocking the gap is fixedly arranged at the side of the lamination plate (551). A control cavity (554) is formed between the lamination plate (551) and the bottom plate (53). A through groove (555) is horizontally opened at the side of the lift bin (51), and the through groove (555) is communicated with the inside of the control cavity (554).

6. The laminating device for manufacturing a multilayer board according to claim 5, wherein: The pressing assembly (5) includes a driving unit (56). The driving unit (56) includes a second hydraulic cylinder (561) fixedly arranged at the middle position of the top end of a bottom plate (53). The second hydraulic cylinder (561) is of a rectangular structure, and a lifting plate (562) is fixedly arranged at the top end of its telescopic part. The lifting plate (562) is of a cross structure, and its four ends are respectively fixedly arranged at the middle positions of the bottom ends of each side of a pressing plate (551). Auxiliary cylinders (563) are vertically and fixedly arranged at the four corners of the top end of the bottom plate (53). The telescopic parts of the auxiliary cylinders (563) are fixedly arranged at the four corners of the bottom end of the pressing plate (551). A plurality of third hydraulic cylinders (564) are fixedly arranged at the top end of the bottom plate (53) on the side of the lifting plate (562). The telescopic parts of the third hydraulic rods are fixedly arranged at the bottom end of the pressing plate (551). The third hydraulic cylinders (564) are evenly arranged inside a control cavity (554).

7. A lamination device for manufacturing a multilayer board according to claim 6, characterized in that: The pressing assembly (5) includes a detection unit (57). The detection unit (57) includes a plurality of pressure sensors (571) fixedly arranged on the pressing plate (551). The pressure sensors (571) are evenly arranged inside the control cavity (554). The detection unit (57) further includes a mounting groove (572) opened at the top end of the lifting plate (562), and a plurality of temperature sensors (573) are fixedly arranged on the mounting groove (572).

8. A lamination device for manufacturing a multilayer board according to claim 5, characterized in that: The pressing assembly (5) further includes a fitting unit (58). The fitting unit (58) includes a plurality of ultrasonic generators (581) fixedly arranged at the bottom end of the pressing plate (551). The ultrasonic generators (581) are evenly arranged inside the control cavity (554). An adsorption groove (582) is opened on the side of the lifting bin (51). The adsorption groove (582) is located on the side of the upper part of the lifting bin (51) before the pressing plate (551) rises. An adsorption pipe (583) is fixedly arranged on the adsorption groove (582), and the adsorption pipe (583) is communicated with a vacuum pump arranged outside.

9. A lamination device for manufacturing a multilayer board according to claim 1, characterized in that: The moving assembly (6) includes a guide rail (61) fixedly arranged at the top end of a fixed top plate (2). A sliding plate (62) that slides along the width direction of the fixed top plate (2) is arranged inside the guide rail. A rack (63) is fixedly arranged at the top end of the sliding plate (62). A motor (64) is fixedly arranged at the top end of the fixed top plate (2). A gear (65) meshing with the rack (63) is fixedly arranged at the output end of the motor (64). A top cover plate (66) that shields the motor (64) is fixedly arranged at the top end of the fixed top plate (2). The end of the sliding plate (62) is horizontally provided with a moving plate (67) that can vertically lift relative to the sliding plate (62). At least two fourth hydraulic cylinders (68) are vertically and fixedly arranged at the top end of the end of the sliding plate (62). The telescopic part of the fourth hydraulic cylinder (68) vertically penetrates through the sliding plate (62) and is fixedly arranged with the top end of the moving plate (67). At the bottom end of one end of the moving plate (67) facing the fixed top plate (2), an I-shaped frame (69) is fixedly arranged. At the four corners of the bottom end of the I-shaped frame (69), suction cups (70) are fixedly arranged. A suction pump (71) is fixedly arranged at the top end of the sliding plate (62). The air inlet of the suction pump (71) is communicated with an air inlet pipe (72), and the air inlet pipe (72) is communicated with the corresponding suction cup (70).

10. A pressing method, applied to the pressing equipment for manufacturing a multilayer board according to any one of claims 1-9, characterized in that, The method for the multi-layer board includes the following steps: a. Material preparation: Select suitable single boards, evenly apply an environment-friendly adhesive on their surfaces, stack the single boards neatly according to the designed number of layers, and ensure the alignment between each layer and the consistency of adhesive application; b. Equipment preparation: According to the specific size of the multi-layer board, adjust the distance between the fixed bottom frame (1) and the fixed top plate (2) to ensure that the pressing component (5) can work smoothly. Turn on all hydraulic cylinders, air cylinders and related control systems to ensure that each component is in a standby state; c. Preliminary positioning and fixation: Move the stacked multi-layer board from the outside to the central position of the working area of the pressing component (5) through the moving component (6). Then move the moving component (6) out of the working area. Use the first hydraulic cylinder (542) to drive the lifting bin (51) to rise so that the first rubber pad (52) gently touches the top of the multi-layer board; d. Auxiliary pressing and preliminary pressing: Start the ultrasonic generator (581) in the laminating unit (58) to apply ultrasonic vibration with a specific frequency (such as 20 kHz to 40 kHz) to the multi-layer board, and start the vacuum pump set outside to evacuate the working area to promote the uniform penetration of the adhesive between the boards and reduce the formation of bubbles. The second hydraulic cylinder (561) drives the pressing plate (551) to rise to start the preliminary pressing process, apply a lower pressure (0.1 MPa), and last for 3 to 5 minutes to initially remove air and fix the positions of each layer. During this process, the pressure sensor (571) monitors the pressure distribution at the bottom of the pressing plate (551) in real time, and then pressurizes, and dynamically adjusts the pressure magnitude through the auxiliary air cylinder (563) and the third hydraulic cylinder (564). At the same time, ensure that the pressing sequence is from the middle to both sides to ensure uniform pressing; e. Precise pressing and curing: Based on the pressure and temperature data provided by the detection unit (57), the central control system further optimizes the pressing parameters, including the pressure magnitude, holding time and temperature control, etc. If necessary, the multi-layer board can be heated in zones by using a heating device to ensure that the adhesive cures within the optimal temperature range (usually 80 °C to 120 °C); f, Cooling and final inspection: After the lamination is completed, gradually reduce the temperature to room temperature while maintaining a constant pressure until the plate is completely cured, avoiding product deformation or increased internal stress caused by sudden temperature changes. Use the moving component (6) to take out the finished product and conduct a comprehensive quality inspection, including physical property tests (such as flexural strength, bonding strength, etc.) and appearance inspection, to ensure that all products meet the standard requirements.

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