Ultrasonic-assisted multi-layer pressing process and device for packaging boards

Abstract

The present invention discloses a multilayer pressing process and device for packaging boards assisted by ultrasonic waves, and relates to the technical field of packaging board processing, including: an unwinding component, which is arranged on one side of a stacking platform, and is used to place a copper foil roll and control the copper foil roll to release the copper foil; a material carrier, which is used to place a composite board, a steel plate and a buffer pad respectively; a stacking component, which is used to take materials from the material carrier and stack them on the stacking platform; a material cutting component, which is used to cut and take the copper foil. The present invention arranges a material cutting component, so as to temporarily cut and place the copper foil during the stacking process, and can replace manual operation to reduce the problem of inconvenient operation in the process of taking and placing the copper foil. At the same time, because the copper foil is temporarily released from the coil and then cut and taken, the problem of the lower copper foil being rolled up due to airflow or static electricity when the top copper foil is taken during the taking process is avoided, which greatly facilitates the taking and operation of the copper foil.

Description

Technical Field

[0001] The invention relates to the technical field of packaging board processing, and in particular to a packaging board multi-layer pressing process and device based on ultrasonic assistance. Background Art

[0002] A package board is a circuit board used to support and connect electronic components. It is a specific form of PCB (printed circuit board). It is usually used to combine chips or other components together to form a complete electronic device or system. During the design and manufacturing process, the package board takes into account important factors such as signal integrity, power management and heat dissipation performance. This circuit board has a compact structure and often adopts a multi-layer design to support complex circuits and signal transmission. It can also effectively reduce electromagnetic interference. Among them, the lamination process of the package board is a key step in the manufacturing process. It is mainly used to stack different circuit layers and insulating materials together to ensure the performance and reliability of the circuit board. The existing technology usually uses a laminator to press the package board.

[0003] A laminator is a press machine used to press multiple layers of materials together. The process of pressing and combining prepregs and copper foils in PCB manufacturing requires a dedicated PCB / CCL laminator. Since the package board has a layered structure, the multiple layers of materials need to be stacked in order and fed between the hot pressing plates of the laminator during production. The laminator usually has multiple hot pressing plates and can press multiple groups of sheets at one time. The pressing diagram is shown in the figure. Fig.14 Specifically, in a vacuum, high temperature, and high pressure environment, the prepreg melts under heat to bond the multiple layers of materials together. The laminated sheets undergo multiple processes such as adding a solder mask layer and surface treatment to finally obtain the finished PCB. The specific pressing process includes:

[0004] Prepare laminated materials: Cut pre-treated copper foil, insulation layer (such as epoxy resin) and other materials into required size and shape according to design requirements;

[0005] Lamination: PCBs and plywood are stacked alternately to form a combined layer, and the edges of each PCB and plywood are aligned. Insulation material is usually added between each layer to ensure electrical isolation and enhance mechanical strength.

[0006] Placing the board: placing the stacked laminated boards on the laminating table of the laminating machine;

[0007] Apply heat and pressure: Put the laminated materials into the laminator, heat and apply pressure to promote the curing of the resin and the bonding between the layers. During this process, the resin will flow and fill between the layers to form a solid connection;

[0008] Cooling: After a certain period of heating and pressurization, the laminate will be cooled to ensure that the structure is stable after curing;

[0009] Post-processing: After cooling, the laminate needs to be cut, drilled, and removed from excess material to achieve the desired size and shape.

[0010] Inspection: Perform necessary inspections and tests to ensure the electrical performance and structural integrity of the laminate meet design specifications.

[0011] For example, a Chinese patent for a circuit board lamination method (publication number CN109618507A) is proposed in the prior art. The technical solution disclosed in the patent document is as follows: "A circuit board lamination method, which adopts the following process for lamination: material preparation: preparing multiple layers of PCB boards and plywood that meet the size requirements and are to be pressed; stacking: stacking the PCB boards and plywood alternately to form a combined layer, and ensuring that the edges of each PCB board and plywood are aligned; placing the board: placing the stacked laminated board into the laminating machine table of the laminating machine; laminating: setting the laminating temperature and laminating pressure, and starting the laminating process. The press performs lamination operation on the laminated board, wherein the lamination temperature is set to: a heating rate of 2.5 to 3.0°C until the temperature rises to 150°C, and the lamination pressure is set to: when the lamination temperature is below 70°C, the pressure is 0.25Mpa to 0.35Mpa, and when the lamination temperature is above 70°C, the pressure rises to 0.65Mpa to 0.75Mpa. The lamination process proposed in the present invention can make the plywood fully melted and flow evenly by controlling the lamination temperature and lamination pressure, ensuring that the thickness of the cured laminate is uniform and there is no cavitation. "

[0012] However, in the process of pressing using traditional technology, it is usually necessary to manually stack multiple layers of materials, including soft materials such as copper foil. Due to the characteristics of the materials, there are great inconveniences in the stacking process, such as: the copper foil is placed together after being cut, and the copper foil below will be disturbed when it is taken, causing the unused copper foil to fold; the copper foil is prone to bending or twisting during movement, which makes it easy to fold when stacked; because the copper foil is soft and thin, it is easy to float during operation and the edges are easy to droop, making the stacking operation inconvenient and affecting the pressing accuracy. Summary of the invention

[0013] The purpose of the present invention is to provide an ultrasonic-assisted multi-layer pressing process and device for packaging boards, so as to solve the problem in the prior art that the copper foil is thin and soft, which makes it inconvenient to operate when stacking the layers of boards.

[0014] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0015] The invention discloses an ultrasonic-assisted multilayer pressing device for packaging boards, comprising a laminator, a conveyor line, an ultrasonic transmitter and a stacking platform. The laminator is configured as a multilayer laminator including a plurality of detachable carriers. The ultrasonic transmitter generates ultrasonic waves to assist the laminator in its operation. The stacking platform is used to place the carriers, which are used to stack materials. The invention also includes: a reeling component, which is arranged on one side of the stacking platform, and is used to place a copper foil roll and control the copper foil roll to release the copper foil; a material rack, which is provided with a plurality of material racks and is respectively used to place a composite board, a steel plate and a buffer pad; a stacking component, which is used to take materials from the material rack and stack them on the stacking platform; a material cutting component, which is used to cut and take the copper foil; and a correction component, which is arranged on the stacking platform and is used to correct the placement position of the carrier.

[0016] By adopting the above technical solution, a cutting component is provided to facilitate temporary cutting of copper foil sheets and placement during the stacking process, which can replace manual operation to reduce the inconvenience in operation during the copper foil taking and placing process. At the same time, since the copper foil sheets are temporarily released from the coil and then cut for use, the problem of the lower copper foil being rolled up due to airflow or static electricity when the top copper foil is taken during the taking process is avoided, which greatly facilitates the taking and operation of the copper foil.

[0017] The further improvement of the technical solution of the present invention is that: the cutting component includes a mounting frame fixedly connected to the top of the stacking platform, two cylinders are symmetrically fixedly installed on both sides of the mounting frame, a force-bearing plate is fixedly connected between the piston rods of each two cylinders, the top of the mounting frame is slidably connected with a guide rod, the top of the guide rod is fixedly connected to the force-bearing plate, the bottom of the guide rod extends to the inner side of the mounting frame and is fixedly connected with a lifting plate, and a turning frame is rotatably connected between the sides of the lifting plates that are close to each other, one side of one of the lifting plates is fixedly installed with a turning motor, the output end of the turning motor extends to the other side of the lifting plate and is fixedly connected to the central axis of the turning frame, two servo modules are symmetrically installed between the inner sides of the turning frame, and the movable ends of the two servo modules are fixedly connected with cutting knives; eight first suction cups are fixedly installed at the bottom of the turning frame, and the first suction cups are connected to an external air pump through an electromagnetic valve; the first suction cup remains vertically downward during the operation of the turning motor;

[0018] By adopting the above technical scheme, in order to meet the requirements of automatic unwinding of copper foil and cutting it according to a certain length, the flip motor and the unwinding motor are controlled to work in coordination with each other under the state that the two first suction cups adsorb the copper foil, and the copper foil is pulled out until it is adsorbed by the six first suction cups at the same time. Specifically, the output shaft of the flip motor flips 180° in each working cycle, so that the two first suction cups that initially adsorb the copper foil flip to the other side, and the four first suction cups on the other side are flipped to the top of the copper foil and contact it, so that the copper foil originally adsorbed by the two first suction cups has six first suction cups adsorbing the copper foil after being flipped 180° by the flip frame. At this time, the servo module on one side (close to the side of the copper foil roll) is controlled to work to make the cutting knife move, thereby cutting the copper foil, and the cutting length is the spacing between the two cutting knives, which is also the distance of the cutting knife relative to the central axis of the flip frame.

[0019] A further improvement of the technical solution of the present invention is that the cutting component also includes an inner gear ring, which is fixedly connected to the side of the lifting plate close to the flip frame, and both ends of the flip frame are rotatably connected to transmission gears, which are meshed with the inner gear ring; the servo module is rotatably connected between the two sides of the two lifting plates, and the center axis of the servo module and the center axis of the transmission gear are connected through a belt and a pulley.

[0020] By adopting the above technical solution, a transmission structure in which an inner gear ring and a transmission gear mesh with each other is set, wherein the inner gear ring remains fixed, and when the transmission gear flips along with the flip frame, it will revolve relative to the inner gear ring, so that the transmission gear keeps rotating at the same time. By presetting and coordinating the transmission ratio between the transmission gear, the inner gear ring and the pulley in advance, it can be achieved that no matter how the flip frame flips, the first suction cup is guaranteed to be vertically downward.

[0021] A further improvement of the technical solution of the present invention is that the stacking component includes a gantry, a dual-axis movable module is fixedly installed on the inner side of the gantry, the movable end of the dual-axis movable module is fixedly connected to the movable frame, the dual-axis movable module is used to control the movement of the movable frame in the horizontal and vertical directions through a servo motor, the top of the movable frame is fixedly connected to a switching motor, the output end of the switching motor extends to the bottom of the movable frame and is fixedly connected to a material picking arm, a second suction cup is fixedly installed on the bottom of the material picking arm, the second suction cup is connected to an external air pump through an electromagnetic valve, and the loading racks are all located on the movable path of the movable frame.

[0022] By adopting the above technical solution, the movable frame is controlled to move to the end farthest from the stacking platform through the dual-axis moving module, and each loading rack is located on a path circle centered on the position of the movable frame. At this position, the second suction cup can be placed above the material to be taken by controlling the switching motor, and then the material taking arm is controlled to descend through the dual-axis moving component to make the second suction cup contact the target, and the second suction cup can adsorb the target by providing negative pressure through an external air pump; further, the target is moved to the loading plate through the dual-axis moving module.

[0023] The further improvement of the technical solution of the present invention is that the correction component includes two fixed plates symmetrically fixedly connected to the bottom of the stacking platform, a two-way screw rod is rotatably connected between the two fixed plates on the sides close to each other, a correction motor is fixedly installed on one of the fixed plates away from the side of the two-way screw rod, the output end of the correction motor extends to the other side of the fixed plate and is fixedly connected to the two-way screw rod, the outer side of the two-way screw rod is symmetrically threaded with two movable plates, the movable plate is slidably connected to the stacking platform, two slide grooves are symmetrically opened on the top of the stacking platform, two center plates are arranged on the top of the stacking platform, the center plates correspond to the movable plates one by one and two sliding blocks are symmetrically fixedly connected between them, and the sliding blocks are slidably connected to the slide grooves; a baffle is fixedly connected to one end of the center plate, a pushing groove is opened on the top of the stacking platform, a roller is fixedly connected to the central position of the outside of the two-way screw rod, the top of the roller passes through the pushing groove and is flush with the top of the stacking platform.

[0024] By adopting the above technical solution, before the carrier is placed, the two centering plates are at the farthest distance from each other, and the operator can directly place the carrier on the stacking platform as required without manual position correction. After the carrier is placed, the correction motor is controlled to drive the bidirectional lead screw to rotate, so that the two centering plates move toward the side close to each other, and the carrier is pushed to the center of the two centering plates. At the same time, the roller rotates with the bidirectional lead screw. When the carrier is placed on the stacking platform, the top of the roller contacts the carrier, and the rotation of the roller pushes the carrier to the side close to the baffle, and finally the carrier is attached to the baffle and is in the center of the two centering plates, thus completing the correction of the carrier position.

[0025] A further improvement of the technical solution of the present invention is that: the unwinding component includes a side plate fixedly connected to the top of the stacking platform, one side of the side plate is rotatably connected to a reel, a copper foil roll is arranged on the outer side of the reel, an unwinding motor is fixedly installed on the bottom of the stacking platform, and the unwinding motor is connected to the central axis of the reel through a belt and a pulley transmission; a cross plate is fixedly connected to the inner side of the mounting frame, two sliding rods are symmetrically slidably connected to the top of the cross plate, a limiting block is fixedly connected to the top of the sliding rod, the bottom of the sliding rod extends to the bottom of the cross plate and is fixedly connected to a tensioning frame, a tensioning roller is rotatably connected to the inner side of the tensioning frame, and a tensioning spring is sleeved on the outer side of the sliding rod; two steering plates are symmetrically fixedly connected to one side of the mounting frame, and a steering roller is rotatably connected between the sides of the two steering plates that are close to each other.

[0026] By adopting the above technical solution, a tensioning structure is set up to provide a flexible pulling force when the copper foil is unrolled, thereby preventing the copper foil from being torn. Specifically, by controlling the operation of the cylinder, the force-bearing plate is driven to move downward, and the lifting plate is moved downward through the guide rod, so that the copper foil is in contact with the steel plate. At this time, the copper foil can be released. During the process, the amount of copper foil activity generated during the flipping of the turning frame is satisfied by the unwinding motor working to release the copper foil roll, and the amount of activity generated during the lifting and lowering of the turning frame is controlled by the unwinding motor not working and keeping it locked, and the copper foil roll is not unrolled. The copper foil roll will be pulled during the lifting and lowering of the turning frame, thereby squeezing the tensioning roller, and the tensioning spring is squeezed through the tensioning frame to compress it to provide activity space.

[0027] A further improvement of the technical solution of the present invention is that an annular groove is provided on the periphery of the roller, an annular sleeve is provided on the position of the roller where the annular groove is located, the interior of the annular groove and the inner wall of the annular sleeve are provided with mutually meshing teeth, the top position of the annular sleeve is higher than the top position of the stacking platform, the annular sleeve is a rubber ring, and a plurality of grooves are provided on the side close to the center plate, and auxiliary wheels are rotatably connected between the inner walls of the grooves.

[0028] When adopting the above technical solution, the roller needs to play the role of correction and feeding at the same time. It must be able to stop pushing the carrier plate by slipping after the correction is completed. The roller itself is flush with the top of the stacking platform. By setting a flexible annular sleeve extending to the top of the stacking platform, the top part of the annular sleeve can be flattened when the carrier plate is placed, thereby not affecting the horizontal placement of the carrier plate. The material of the annular sleeve is the same as that of the conveyor belt, which can make it slip relative to the carrier plate when the carrier plate cannot move.

[0029] A further improvement of the technical solution of the present invention is that the material carrier comprises a material carrier plate, four limit plates are fixedly connected to the top of the material carrier plate, the limit plates are arranged in an L shape, and a plurality of positioning holes are provided on the material carrier plate.

[0030] With the above technical solution, in order to facilitate the lifting and lowering of the horizontally arranged material-grabbing arm to grab materials, the limiting structure adopts a vertical L-shaped plate, which can facilitate the operator to stack the materials on the loading plate without affecting the retrieval.

[0031] The present invention also provides a multi-layer pressing process for packaging boards based on ultrasonic assistance, comprising the following steps:

[0032] S1. Material preparation: prepare buffer pads, steel plates, copper foil rolls and combined plates, and place the buffer pads, steel plates and combined plates in corresponding material racks;

[0033] Among them, the combined board is a board composed of PP sheets bonded on both sides of the core board. The boards to be stacked are placed in the corresponding loading racks respectively, so as to facilitate accurate access and stacking;

[0034] S2. Take the materials: take out the plates from the carrier rack in the order of carrier plate, buffer pad, steel plate, copper foil, combined plate, copper foil, steel plate, buffer pad and cover plate from bottom to top and place them on the carrier plate. When copper foil needs to be stacked, cut the copper foil sheet with an area larger than the combined plate;

[0035] During the stacking process, the copper foil is used in the form of coils and cut and used on site as needed, thus reducing the mutual disturbance between the copper foils;

[0036] S3, feeding: feeding the stacked materials into the laminating machine;

[0037] S4, lamination: start the laminator to perform lamination operation on the laminated board until the PP sheets on both sides of the combined board are melted, and control the ultrasonic transmitter to generate ultrasonic waves to assist the diffusion of the melted PP material;

[0038] During the hot pressing process, the PP sheet melts into liquid (resin), and the electrical energy is converted into ultrasonic vibration energy through the ultrasonic transmitter, and the energy is transmitted to the material to be laminated through appropriate transmission methods. These energies produce tiny vibrations and displacements inside the material, which helps the infiltration and diffusion of adhesives such as resins, and increases the contact area and bonding strength of the bonding interface.

[0039] S5, cooling: cooling the plate until the PP material solidifies, so that the combined plate and the copper foil are bonded, and the hot-pressed material is taken out;

[0040] S6. Trimming: Trim off the excess copper foil and burrs around the package board.

[0041] Due to the adoption of the above technical solution, the present invention has the following technical advances compared with the prior art:

[0042] 1. The present invention provides a cutting component to facilitate temporary cutting of copper foil sheets and placement during the stacking process, which can replace manual operation to reduce the inconvenience of operation in the process of taking and placing the copper foil. At the same time, since the copper foil sheets are temporarily released from the coil and then cut for use, the problem of the lower copper foil being rolled up due to airflow or static electricity when the top copper foil is taken during the taking process is avoided, which greatly facilitates the taking and operation of the copper foil.

[0043] 2. The present invention provides a transmission structure in which an inner gear ring and a transmission gear mesh with each other, wherein the inner gear ring remains fixed, and when the transmission gear flips along with the flip frame, it will revolve relative to the inner gear ring, so that the transmission gear keeps rotating at the same time. By presetting and coordinating the transmission ratio between the transmission gear, the inner gear ring and the pulley in advance, it can be achieved that no matter how the flip frame flips, the first suction cup is guaranteed to be vertically downward.

[0044] 3. The present invention provides a correction component. Before placing the carrier, the operator can directly place the carrier on the stacking platform as required without manual position correction. After the carrier is placed, the correction motor is controlled to drive the bidirectional lead screw to rotate, so that the two center plates move toward the side close to each other, and the carrier is pushed to the center of the two center plates. At the same time, the roller rotates with the bidirectional lead screw. When the carrier is placed on the stacking platform, the top of the roller contacts the carrier, and the rotation of the roller pushes the carrier to the side close to the baffle, and finally the carrier is attached to the baffle and is in the center of the two center plates, thus completing the correction of the carrier position, thereby reducing the workload of correcting the carrier position.

[0045] 4. The present invention provides a tensioning structure to provide a movement space when the copper foil is not unwound and the turning frame needs to move. Specifically, the copper foil movement generated during the turning process of the turning frame is satisfied by the unwinding motor working to release the copper foil roll, while the movement generated during the lifting process of the turning frame is controlled by the unwinding motor not working and kept locked. The copper foil roll is not unwound, and the copper foil roll will be pulled during the lifting process of the turning frame, thereby squeezing the tensioning roller and squeezing the tensioning spring through the tensioning frame to compress it and provide a movement space. Therefore, there is no need to frequently control the forward and reverse rotation of the unwinding motor to coordinate the action, thereby improving the service life of the unwinding motor.

[0046] 5. The present invention arranges a flexible annular sleeve on the outside of the roller so as to play the role of correction and feeding at the same time. Specifically, the roller itself is flush with the top of the stacking platform. By arranging the flexible annular sleeve to extend to the top of the stacking platform, the top part of the annular sleeve can be flattened when the carrier is placed, thereby not affecting the horizontal placement of the carrier. The material of the annular sleeve is the same as that of the conveyor belt, which can make the carrier slip relative to the carrier when it cannot move, and can also be used to feed the carrier into the conveyor line, thereby eliminating the need for an additional pushing structure; and the annular sleeve is directly mounted on the annular groove and can be replaced when it is worn out, greatly facilitating practical applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] The present invention will be further described below in conjunction with the accompanying drawings.

[0048] Figure 1 It is a schematic diagram of the structure of the present invention from the first viewing angle as a whole;

[0049] Figure 2 It is a schematic diagram of the structure of the second viewing angle of the whole invention;

[0050] Figure 3 It is a structural schematic diagram of the stacking platform of the present invention from a first viewing angle (the flip frame is in a horizontal state);

[0051] Figure 4 It is a structural schematic diagram of the stacking platform of the present invention from a second viewing angle (the flip frame is in an inclined state);

[0052] Figure 5 A schematic diagram of the structure of the stacking platform of the present invention from a third viewing angle (the flip frame is in an inclined state and the carrier plate is not shown);

[0053] Figure 6 It is a structural schematic diagram of the material carrier of the present invention;

[0054] Figure 7 It is a partial structural schematic diagram of the material cutting component of the present invention;

[0055] Figure 8 It is a schematic diagram of the structure of the stacking components of the present invention;

[0056] Fig. 9 For the present invention Figure 4 Enlarged view of point A in the middle;

[0057] Fig.10 For the present invention Figure 4 Enlarged view of point B in the middle;

[0058] Fig.11 For the present invention Figure 3 Enlarged view of point C in the middle;

[0059] Fig.12 For the present invention Figure 2 Enlarged view of point D in the middle;

[0060] Fig.13 It is a schematic diagram of the disassembly of the roller and the annular sleeve of the present invention;

[0061] Fig.14 It is a schematic diagram of the packaging board pressing of the present invention.

[0062] In the figure: 1, laminator; 2, conveyor line; 301, gantry; 302, movable frame; 303, switching motor; 304, material picking arm; 305, second suction cup; 401, material loading plate; 402, limit plate; 403, positioning hole; 5, stacking platform; 601, cylinder; 602, force plate; 603, guide rod; 604, lifting plate; 701, turning frame; 702, servo module; 703, first suction cup; 704, turning motor; 705, inner gear ring; 706, transmission gear; 707, cutting knife; 801, fixed plate; 80 2. Bidirectional screw rod; 803. Correction motor; 804. Movable plate; 805. Roller; 806. Push trough; 807. Slide; 808. Slider; 809. Centering plate; 810. Baffle; 811. Groove; 812. Auxiliary wheel; 901. Unwinding motor; 902. Side plate; 903. Reel; 904. Cross plate; 905. Tensioning frame; 906. Slide; 907. Tensioning roller; 908. Tensioning spring; 909. Limit block; 910. Steering roller; 911. Steering plate; 10. Mounting frame; 11. Annular groove; 12. Annular sleeve. DETAILED DESCRIPTION

[0063] The present invention is further described in detail below in conjunction with embodiments:

[0064] Example 1

[0065] like Figure 1 , Figure 2 and Figure 3 As shown, the present invention provides a multi-layer pressing device for packaging boards based on ultrasonic assistance, including a laminator 1, a conveyor line 2, an ultrasonic transmitter and a stacking platform 5, the laminator 1 is configured as a multi-layer laminator 1 including a plurality of detachable carriers, the ultrasonic transmitter generates ultrasonic waves to assist the laminator 1 in its operation, the stacking platform 5 is used to place the carriers, the carriers are used to stack materials, and also includes: a reeling component, the reeling component is arranged on one side of the stacking platform 5, the reeling component is used to place the copper foil roll, and control the copper foil roll to release the copper foil; a material rack, a plurality of material racks are arranged, and are respectively used to place the composite board, the steel plate and the buffer pad; a stacking component, the stacking component is used to take materials from the material rack and stack them on the stacking platform 5; a cutting component, the cutting component is used to cut and take the copper foil; a correction component, the correction component is arranged on the stacking platform 5, and the correction component is used to correct the placement position of the carrier.

[0066] In this embodiment, a cutting component is provided to facilitate temporary cutting of copper foil sheets and placement during the stacking process, thereby replacing manual operation to reduce the inconvenience in operation during the copper foil taking and placing process. At the same time, since the copper foil sheets are temporarily released from the coil and then cut for use, the problem of the lower copper foil being rolled up due to airflow or static electricity when the top copper foil is taken during the taking process is avoided, which greatly facilitates the taking and operation of the copper foil.

[0067] like Figure 3 , Figure 4 and Fig. 9As shown, preferably, the cutting component includes a mounting frame 10 fixedly connected to the top of the stacking platform 5, two cylinders 601 are symmetrically fixedly installed on both sides of the mounting frame 10, a force plate 602 is fixedly connected between the piston rods of each two cylinders 601, a guide rod 603 is slidably connected to the top of the mounting frame 10, the top of the guide rod 603 is fixedly connected to the force plate 602, the bottom of the guide rod 603 extends to the inner side of the mounting frame 10 and is fixedly connected to a lifting plate 604, and a flip frame 701 is rotatably connected between the sides of the lifting plates 604, one of which is A flip motor 704 is fixedly installed on one side of the lifting plate 604, and the output end of the flip motor 704 extends to the other side of the lifting plate 604 and is fixedly connected to the central axis of the flip frame 701. Two servo modules 702 are symmetrically installed between the inner sides of the flip frame 701, and the movable ends of the two servo modules 702 are fixedly connected to cutting knives 707; eight first suction cups 703 are fixedly installed at the bottom of the flip frame 701, and the first suction cups 703 are connected to an external air pump through a solenoid valve; the first suction cups 703 remain vertically downward during the operation of the flip motor 704;

[0068] The eight first suction cups 703 are divided into two groups and correspond to two cutting knives 707 respectively, with four in each group. In each group of first suction cups 703 , the cutting path corresponding to the cutting knife 707 is used as the symmetry axis.

[0069] When no copper foil is placed, the lifting plate 604 is always at the highest position in its active range.

[0070] In this embodiment, in order to meet the requirements of automatic unwinding of copper foil and cutting according to a certain length, the flip motor 704 and the unwinding motor 901 are controlled to work in coordination with each other in a state where the two first suction cups 703 adsorb the copper foil, and the copper foil is pulled out until it is adsorbed by the six first suction cups 703 at the same time. Specifically, the output shaft of the flip motor 704 flips 180° in each working cycle, so that the two first suction cups 703 that initially adsorb the copper foil flip to the other side, and the four first suction cups 703 located on the other side are flipped to the top of the copper foil and contact it, so that the copper foil originally adsorbed by the two first suction cups 703 has six first suction cups 703 adsorbing the copper foil after being flipped 180° by the flip frame 701. At this time, the servo module 702 on one side (close to the side of the copper foil roll) is controlled to work to make the cutting knife 707 move, thereby cutting the copper foil, and the cutting length is the spacing between the two cutting knives 707, which is also the distance between the cutting knife 707 and the central axis of the flip frame 701.

[0071] After the copper foil is cut, the four corners of the sheet to be used are sucked by the four first suction cups 703 respectively, while the copper foil roll is sucked by the two first suction cups 703.

[0072] like Figure 4 and Fig. 9As shown, preferably, the cutting component also includes an inner gear ring 705, which is fixedly connected to the side of the lifting plate 604 close to the flip frame 701, and both ends of the flip frame 701 are rotatably connected to the transmission gear 706, and the transmission gear 706 is meshed with the inner gear ring 705; the servo module 702 is rotatably connected between the two sides of the two lifting plates 604, and the central axis of the servo module 702 and the central axis of the transmission gear 706 are connected through a belt and a pulley.

[0073] Based on the requirement that the first suction cup 703 needs to be kept vertically downward during the revolution around the central axis, if a special motor is designed to drive it, a control system needs to be set up at the same time, which makes the cost high. However, it is unstable to achieve this effect only by gravity.

[0074] In this embodiment, a transmission structure in which an inner ring gear 705 and a transmission gear 706 mesh with each other is provided, wherein the inner ring gear 705 remains fixed, and when the transmission gear 706 flips along with the flip frame 701, it will revolve relative to the inner ring gear 705, so that the transmission gear 706 keeps rotating at the same time. By presetting and coordinating the transmission ratio between the transmission gear 706, the inner ring gear 705 and the pulley in advance, it can be achieved that no matter how the flip frame 701 flips, the first suction cup 703 is ensured to be vertically downward.

[0075] like Figure 1 , Figure 2 and Figure 8 As shown, preferably, the stacking component includes a gantry 301, a dual-axis movable module is fixedly installed on the inner side of the gantry 301, the movable end of the dual-axis movable module is fixedly connected to the movable frame 302, the dual-axis movable module is used to control the movable frame 302 to move in the horizontal and vertical directions through a servo motor, the top of the movable frame 302 is fixedly connected to a switching motor 303, the output end of the switching motor 303 extends to the bottom of the movable frame 302 and is fixedly connected to a material picking arm 304, the bottom of the material picking arm 304 is fixedly installed with a second suction cup 305, the second suction cup 305 is connected to an external air pump through a solenoid valve, and the loading racks are all located on the movable path of the movable frame 302.

[0076] In the present embodiment, the stacking component is an existing suction cup material picking structure, but since a cutting component is arranged above the stacking platform 5, a picking arm 304 is arranged to extend the material discharge distance. Specifically, the movable frame 302 is controlled to move to the end farthest from the stacking platform 5 by a dual-axis moving module, and each material carrier is located on a path circle centered on the movable frame 302 at this position. At this position, the second suction cup 305 can be placed above the material to be picked up by controlling the switching motor 303 to work, and then the picking arm 304 is controlled to descend by a dual-axis moving component, so that the second suction cup 305 contacts the target, and the second suction cup 305 can adsorb the target by providing negative pressure by an external air pump; further, the target is moved to the carrier by a dual-axis moving module;

[0077] Among them, during the process of the second suction cup 305 taking and unloading the material, the lifting plate 604 is in its movable topmost position, and the unwinding and cutting operations of the copper foil are carried out when the second suction cup 305 takes the material. During the unloading process of the second suction cup 305, the turning frame 701 is in a horizontal state, so that simultaneous operations can be carried out without interfering with each other, thereby improving operating efficiency.

[0078] Preferably, since the present application adopts the form of suction cup picking up and stacking, the buffer pad is selected as a silicone pad or a perfluoro nano buffer pad instead of kraft paper.

[0079] Example 2

[0080] like Figure 4 , Figure 5 and Fig.11 As shown, on the basis of Example 1, the present invention provides a technical solution: preferably, the correction component includes two fixed plates 801 symmetrically fixedly connected to the bottom of the stacking platform 5, and a bidirectional screw rod 802 is rotatably connected between the two sides of the two fixed plates 801 that are close to each other, and a correction motor 803 is fixedly installed on the side of one of the fixed plates 801 away from the bidirectional screw rod 802, and the output end of the correction motor 803 extends to the other side of the fixed plate 801 and is fixedly connected to the bidirectional screw rod 802, and the outer side of the bidirectional screw rod 802 is symmetrically threaded with two movable plates 804, and the movable plates 804 are connected to the The stacking platform 5 is slidably connected, and two slide grooves 807 are symmetrically opened on the top of the stacking platform 5. Two center plates 809 are arranged on the top of the stacking platform 5. The center plates 809 correspond to the movable plates 804 one by one and two sliders 808 are symmetrically fixedly connected therebetween. The sliders 808 are slidably connected to the slide grooves 807. A baffle plate 810 is fixedly connected to one end of the center plate 809. A pushing groove 806 is opened on the top of the stacking platform 5. A roller 805 is fixedly connected to the central position of the outside of the bidirectional screw rod 802. The top of the roller 805 passes through the pushing groove 806 and is flush with the top of the stacking platform 5.

[0081] Before stacking, the carrier needs to be placed on the stacking platform. Since the stacking position needs to be uniform when stacking materials, the position of the carrier should be kept fixed. Moreover, since the carrier itself is made of metal plate and is heavy, it is inconvenient to align it if a fixed limit groove or other limit member is used to limit the position when placing it. The operator needs to lift the carrier and perform the alignment operation, which is extremely inconvenient. In addition, there is not much operating space above the stacking platform 5, which further increases the difficulty of position alignment.

[0082] In this embodiment, before the carrier is placed, the two centering plates 809 are at the farthest distance from each other. The operator can directly place the carrier on the stacking platform 5 as required without manual position correction. After the carrier is placed, the correction motor 803 is controlled to work, driving the bidirectional screw rod 802 to rotate, so that the two centering plates 809 move toward the side close to each other, and the carrier is pushed to the center of the two centering plates 809. At the same time, the roller 805 rotates with the bidirectional screw rod 802. When the carrier is placed on the stacking platform 5, the top of the roller 805 contacts the carrier. As the roller 805 rotates, the carrier is pushed to the side close to the baffle 810, and finally the carrier is attached to the baffle 810 and is in the center of the two centering plates 809, thus completing the correction of the carrier position.

[0083] Example 3

[0084] like Figure 1 , Figure 3 and Fig.12 As shown, on the basis of Example 2, the present invention provides a technical solution: preferably, the unwinding component includes a side plate 902 fixedly connected to the top of the stacking platform 5, one side of the side plate 902 is rotatably connected to a reel 903, and a copper foil roll is arranged on the outer side of the reel 903, and an unwinding motor 901 is fixedly installed at the bottom of the stacking platform 5, and the unwinding motor 901 is connected to the central axis of the reel 903 through a belt and a pulley transmission; a horizontal plate 904 is fixedly connected to the inner side of the mounting frame 10, and the horizontal plate 904 is fixedly connected to the inner side of the mounting frame 10. The top of 04 is symmetrically and slidably connected to two slide bars 906, the top of the slide bar 906 is fixedly connected to a limit block 909, the bottom of the slide bar 906 extends to the bottom of the cross plate 904 and is fixedly connected to a tensioning frame 905, a tensioning roller 907 is rotatably connected between the inner sides of the tensioning frame 905, and a tensioning spring 908 is sleeved on the outer side of the slide bar 906; one side of the mounting frame 10 is symmetrically and fixedly connected to two steering plates 911, and a steering roller 910 is rotatably connected between the adjacent sides of the two steering plates 911.

[0085] In this embodiment, by setting up a tensioning structure, it is possible to provide movement space when the copper foil is not unwound and the turning frame 701 needs to move. Specifically, by controlling the operation of the cylinder 601, the force-bearing plate 602 is driven to move downward, and the lifting plate 604 is moved downward through the guide rod 603, so that the copper foil contacts the steel plate, and the copper foil can be released at this time. During the process, the amount of copper foil movement generated during the turning of the turning frame 701 is satisfied by the unwinding motor 901 working to release the copper foil roll, and the amount of movement generated during the lifting and lowering of the turning frame 701 is controlled by controlling the unwinding motor 901 not to work and remain locked, and the copper foil roll is not unwound. During the lifting and lowering process of the turning frame 701, the copper foil roll will be pulled, thereby squeezing the tensioning roller 907, and squeezing the tensioning spring 908 through the tensioning frame 905 to compress it and provide movement space.

[0086] Example 4

[0087] like Fig.11 and Fig.13 As shown, on the basis of Example 3, the present invention provides a technical solution: preferably, an annular groove 11 is opened on the periphery of the roller 805, and an annular sleeve 12 is sleeved on the roller 805 at the position where the annular groove 11 is located, and the interior of the annular groove 11 and the inner wall of the annular sleeve 12 are provided with mutually meshing teeth, the top position of the annular sleeve 12 is higher than the top position of the stacking platform 5, the annular sleeve 12 is a rubber ring, and a plurality of grooves 811 are opened on the side close to the center plate 809, and auxiliary wheels 812 are rotatably connected between the inner walls of the grooves 811.

[0088] In this embodiment, the roller 805 needs to play the role of correction and feeding at the same time. It must be able to stop pushing the carrier plate by slipping after the correction is completed. The roller 805 itself is flush with the top of the stacking platform 5. By setting a flexible annular sleeve 12 extending to the top of the stacking platform 5, the top part of the annular sleeve 12 can be flattened when the carrier plate is placed, thereby not affecting the horizontal placement of the carrier plate. The material of the annular sleeve 12 is the same as that of the conveyor belt, which can make it slip relative to the carrier plate when the carrier plate cannot move.

[0089] like Figure 1 and Figure 6 As shown, preferably, the loading rack includes a loading plate 401 , and four limiting plates 402 are fixedly connected to the top of the loading plate 401 . The limiting plates 402 are arranged in an L shape, and a plurality of positioning holes 403 are provided on the loading plate 401 .

[0090] In this embodiment, in order to facilitate the lifting and lowering of the horizontally arranged material taking arm 304 to take materials, the limiting structure adopts a vertical L-shaped plate, which can facilitate the operator to stack the materials on the loading plate 401 without affecting the taking.

[0091] The present invention also provides a multi-layer pressing process for packaging boards based on ultrasonic assistance, comprising the following steps:

[0092] S1. Material preparation: prepare buffer pads, steel plates, copper foil rolls and combined plates, and place the buffer pads, steel plates and combined plates in corresponding material racks;

[0093] Among them, the combined board is a board composed of PP sheets bonded on both sides of the core board. The boards to be stacked are placed in the corresponding loading racks respectively, so as to facilitate accurate access and stacking;

[0094] S2. Take the materials: take out the plates from the carrier rack in the order of carrier plate, buffer pad, steel plate, copper foil, combined plate, copper foil, steel plate, buffer pad and cover plate from bottom to top and place them on the carrier plate. When copper foil needs to be stacked, cut the copper foil sheet with an area larger than the combined plate;

[0095] During the stacking process, the copper foil is used in the form of coils and cut and used on site as needed, thus reducing the mutual disturbance between the copper foils;

[0096] S3, feeding: feeding the stacked materials into the laminating machine 1;

[0097] S4, lamination: start the laminator 1 to perform lamination operation on the laminated board until the PP sheets on both sides of the combined board are melted, and control the ultrasonic transmitter to generate ultrasonic waves to assist the diffusion of the melted PP material;

[0098] During the hot pressing process, the PP sheet melts into liquid (resin), and the electrical energy is converted into ultrasonic vibration energy through the ultrasonic transmitter, and the energy is transmitted to the material to be laminated through appropriate transmission methods. These energies produce tiny vibrations and displacements inside the material, which helps the infiltration and diffusion of adhesives such as resins, and increases the contact area and bonding strength of the bonding interface.

[0099] S5, cooling: cooling the plate until the PP material solidifies, so that the combined plate and the copper foil are bonded, and the hot-pressed material is taken out;

[0100] S6. Trimming: Trim off the excess copper foil and burrs around the package board.

[0101] The working principle of the ultrasonic-assisted packaging board multi-layer pressing process and device is described in detail below.

[0102] like Figure 1-Figure 14 As shown, both sides of the core plate are covered with PP sheets, and the core plate and the PP sheets are simply bonded together by hot melting to form a composite plate, and the composite plate is stacked in one of the loading racks; and the buffer pads, steel plates and cover plates are stacked in the remaining loading racks respectively;

[0103] The carrier is placed on the stacking platform 5. Under the action of the gravity of the carrier, the top of the annular sleeve 12 outside the roller 805 is flattened, so that the carrier can be placed flat on the stacking platform 5. Then the correction motor 803 is controlled to work, driving the bidirectional screw rod 802 to rotate, so that the two center plates 809 move toward the side close to each other, and the carrier is pushed to the center of the two center plates 809. At the same time, the roller 805 rotates with the bidirectional screw rod 802. When the carrier is placed on the stacking platform 5, the top of the roller 805 (annular sleeve 12) contacts the carrier, and the rotation of the roller 805 will push the carrier to the side close to the baffle 810 Push sideways, and finally make the carrier plate fit the baffle plate 810 and be in the center of the two centering plates 809. In the above process, due to the influence of the transmission ratio of the screw rod itself, the bidirectional screw rod 802 drives the roller 805 to rotate so that the moving speed of the carrier plate toward the baffle plate 810 is greater than the moving speed of the centering plate 809. Therefore, the carrier plate will contact the knife baffle plate 810 before the two centering plates 809 are pushed to the center position, and at this time, the roller 805 and the carrier plate will slip until both sides of the carrier plate contact the auxiliary wheels 812 at the same time, that is, the correction of the carrier plate position is completed, so that the stacking components can be used to accurately stack the layers of plates in the same position later;

[0104] Control the biaxial moving module to work and take the material. Specifically, the biaxial moving module controls the movable frame 302 and the second suction cup 305 to move to the corresponding loading rack position, so that the second suction cup 305 contacts the target and absorbs the target through negative pressure, and the target is placed on the loading tray through the biaxial moving module; the stacking order of the plate from bottom to top is: loading tray, buffer pad, steel plate, copper foil, composite plate, copper foil, steel plate, buffer pad and cover plate, among which, for copper foil, it is unrolled, cut and placed on site;

[0105] Initially, there are two first suction cups 703 to absorb the copper foil. When placing the copper foil, the flip motor 704 and the unwinding motor 901 are controlled to work together, and the flip motor 704 works to flip the flip frame 701. During the flipping process of the flip frame 701, the two transmission gears 706 revolve relative to the inner gear ring 705, so that the transmission gears 706 rotate, and the two servo modules 702 rotate through the pulley and belt transmission, and the rotation direction is opposite to the rotation direction of the flip frame 701 and the rotation speed (angular velocity) is The first suction cups 703 are the same, so that no matter how the turning frame 701 is turned, the first suction cups 703 are facing downwards, but the copper foil will be pulled out during the turning process of the turning frame 701. In the above process, the unwinding motor 901 cooperates to release the copper foil; for each working cycle of the turning motor 704, the output shaft turns 180°, so that the two first suction cups 703 that initially suck the copper foil are turned to the other side, and the four first suction cups 703 on the other side are turned to the top of the copper foil and contact it, so that the copper foil can be sucked by evacuating the first suction cups 703; Next, the servo module 702 near one side of the copper foil roll is controlled to work, so that the cutting knife 707 moves, thereby cutting the copper foil. The cutting length of the copper foil is the distance between the two cutting knives 707. After the cutting is completed, the cut copper foil can be used to stack multilayer boards, and the cut copper foil roll returns to the initial state, that is, there are two first suction cups 703 sucking the copper foil; by controlling the cylinder 601 to work, the force plate 602 is driven to move downward, and the guide rod 603 is used to make the lifting plate 604 move downward The copper foil roll is not unwound. During the lifting and lowering process of the turning frame 701, the copper foil roll will be pulled, thereby squeezing the tensioning roller 907, and squeezing the tensioning spring 908 through the tensioning frame 905, compressing it to provide activity space.

[0106] After each layer of board is stacked, the correction motor 803 is controlled to work, so that the bidirectional screw rod 802 rotates in the opposite direction (the rotation direction is opposite to the rotation direction that makes the two movable plates 804 move toward the side closer to each other), so that the movable plates 804 move toward the side away from each other, and the slider 808 drives the center plate 809 to move toward the side away from each other. At the same time, the roller 805 rotates, thereby pushing the carrier plate to the side away from the baffle 810, until the carrier plate is pushed onto the conveyor line 2 and sent into the laminator 1 along the conveyor line 2.

[0107] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. An ultrasonic-assisted packaging board multilayer pressing device, comprising a laminator (1), a conveyor line (2), an ultrasonic transmitter and a stacking platform (5), wherein the laminator (1) is configured as a multilayer laminator (1) comprising a plurality of detachable carriers, the ultrasonic transmitter generates ultrasonic waves to assist the laminator (1) in its operation, the stacking platform (5) is used to place the carrier, and the carrier is used to stack materials, characterized in that: Also includes: An unwinding component, the unwinding component being arranged on one side of the stacking platform (5), the unwinding component being used to place the copper foil roll and control the copper foil roll to release the copper foil; A material carrier, wherein a plurality of material carriers are provided and are used to place the composite plate, the steel plate and the buffer pad respectively; A stacking component, used to take materials from the material carrier and stack them on the stacking platform (5); A cutting component, which is used to cut and take the copper foil; The cutting component comprises a mounting frame (10) fixedly connected to the top of the stacking platform (5), two cylinders (601) are symmetrically fixedly installed on both sides of the mounting frame (10), a force-bearing plate (602) is fixedly connected between the piston rods of each two cylinders (601), a guide rod (603) is slidably connected to the top of the mounting frame (10), the top of the guide rod (603) is fixedly connected to the force-bearing plate (602), the bottom of the guide rod (603) extends to the inner side of the mounting frame (10) and is fixedly connected to a lifting plate (604), and a flip frame (701) is rotatably connected between the adjacent sides of the lifting plates (604), and one of the A flip motor (704) is fixedly mounted on one side of the lifting plate (604); an output end of the flip motor (704) extends to the other side of the lifting plate (604) and is fixedly connected to the central axis of the flip frame (701); two servo modules (702) are symmetrically mounted between the inner sides of the flip frame (701); movable ends of the two servo modules (702) are fixedly connected to cutting knives (707); eight first suction cups (703) are fixedly mounted on the bottom of the flip frame (701); the first suction cups (703) are connected to an external air pump via a solenoid valve; and the first suction cups (703) are kept vertically downward during the operation of the flip motor (704); A correction component, the correction component being arranged on the stacking platform (5), and being used to correct the placement position of the carrier plate; The cutting component further comprises an inner gear ring (705), wherein the inner gear ring (705) is fixedly connected to a side of the lifting plate (604) close to the flip frame (701), and both ends of the flip frame (701) are rotatably connected to transmission gears (706), and the transmission gear (706) is meshingly connected to the inner gear ring (705); the servo module (702) is rotatably connected between the two sides of the lifting plates (604) close to each other, and the central axis of the servo module (702) and the central axis of the transmission gear (706) are connected by belt and pulley transmission; The stacking component comprises a gantry (301), a double-axis moving module is fixedly installed on the inner side of the gantry (301), a movable end of the double-axis moving module is fixedly connected to a movable frame (302), the double-axis moving module is used to control the movable frame (302) to move in the horizontal direction and the vertical direction through a servo motor, a switching motor (303) is fixedly connected to the top of the movable frame (302), an output end of the switching motor (303) extends to the bottom of the movable frame (302) and is fixedly connected to a material picking arm (304), a second suction cup (305) is fixedly installed at the bottom of the material picking arm (304), the second suction cup (305) is connected to an external air pump through a solenoid valve, and the material loading racks are all located on the movable path of the movable frame (302).

2. The ultrasonic-assisted packaging board multilayer pressing device according to claim 1, characterized in that: The correction component comprises two fixed plates (801) symmetrically fixedly connected to the bottom of the stacking platform (5); a bidirectional screw rod (802) is rotatably connected between the adjacent sides of the two fixed plates (801); a correction motor (803) is fixedly installed on the side of one of the fixed plates (801) away from the bidirectional screw rod (802); the output end of the correction motor (803) extends to the other side of the fixed plate (801) and is fixedly connected to the bidirectional screw rod (802); the outer side of the bidirectional screw rod (802) is symmetrically threadedly connected to two movable plates (804); the movable plates (804) are slidably connected to the stacking platform (5); Two slide grooves (807) are symmetrically provided on the top, and two center plates (809) are arranged on the top of the stacking platform (5). The center plates (809) correspond to the movable plates (804) one by one and two sliders (808) are symmetrically fixedly connected therebetween. The sliders (808) are slidably connected to the slide grooves (807); a baffle (810) is fixedly connected to one end of the center plate (809), a material pushing groove (806) is provided on the top of the stacking platform (5), and a roller (805) is fixedly connected to the central position of the outside of the bidirectional screw rod (802), and the top of the roller (805) passes through the material pushing groove (806) and is flush with the top of the stacking platform (5).

3. The ultrasonic-assisted packaging board multilayer pressing device according to claim 2, characterized in that: The unwinding component comprises a side plate (902) fixedly connected to the top of the stacking platform (5); a reel (903) is rotatably connected to one side of the side plate (902); a copper foil roll is arranged on the outer side of the reel (903); an unwinding motor (901) is fixedly installed at the bottom of the stacking platform (5); the unwinding motor (901) is connected to the central axis of the reel (903) through a belt and a pulley transmission; a transverse plate (904) is fixedly connected to the inner side of the mounting frame (10); and two sliding plates (904) are symmetrically slidably connected to the top of the transverse plate (904). The top of the sliding rod (906) is fixedly connected to a limit block (909), the bottom of the sliding rod (906) extends to the bottom of the horizontal plate (904) and is fixedly connected to a tensioning frame (905), a tensioning roller (907) is rotatably connected between the inner sides of the tensioning frame (905), and a tensioning spring (908) is sleeved on the outer side of the sliding rod (906); one side of the mounting frame (10) is symmetrically fixedly connected to two steering plates (911), and a steering roller (910) is rotatably connected between the adjacent sides of the two steering plates (911).

4. The ultrasonic-assisted packaging board multilayer pressing device according to claim 3, characterized in that: An annular groove (11) is formed on the periphery of the roller (805); an annular sleeve (12) is sleeved on the roller (805) at the location of the annular groove (11); the interior of the annular groove (11) and the inner wall of the annular sleeve (12) are provided with teeth that mesh with each other; the top position of the annular sleeve (12) is higher than the top position of the stacking platform (5); the annular sleeve (12) is a rubber ring; a plurality of grooves (811) are formed on one side of the center plate (809) that is close to the center plate (809); auxiliary wheels (812) are rotatably connected between the inner walls of the grooves (811).

5. The ultrasonic-assisted packaging board multi-layer pressing device according to claim 4, characterized in that: The material carrier comprises a material carrier plate (401), the top of which is fixedly connected with four limiting plates (402), the limiting plates (402) being arranged in an L shape, and a plurality of positioning holes (403) being provided on the material carrier plate (401).

6. Ultrasonic-assisted multi-layer pressing process for packaging boards, characterized in that: The ultrasonic-assisted packaging board multilayer pressing device applicable to any one of claims 1 to 5 comprises the following steps: S1. Material preparation: prepare buffer pads, steel plates, copper foil rolls and combined plates, and place the buffer pads, steel plates and combined plates in corresponding material racks; S2. Take the materials: take out the plates from the carrier rack in the order of carrier plate, buffer pad, steel plate, copper foil, combined plate, copper foil, steel plate, buffer pad and cover plate from bottom to top and place them on the carrier plate. When copper foil needs to be stacked, cut the copper foil sheet with an area larger than the combined plate; S3, feeding: feeding the stacked materials into the laminating machine (1); S4, lamination: start the laminating machine (1) to perform lamination operation on the laminated board until the PP sheets on both sides of the combined board are melted, and control the ultrasonic transmitter to generate ultrasonic waves to assist the diffusion of the melted PP material; S5, cooling: cooling the plate until the PP material solidifies, so that the combined plate and the copper foil are bonded, and the hot-pressed material is taken out; S6. Trimming: Trim off the excess copper foil and burrs around the package board.

Images