Hot press molding equipment for copper coating of laminated board

Abstract

The invention discloses hot press molding equipment for copper coating of a laminated board, which comprises a base, supporting tables are symmetrically arranged on the base, a vibration mechanism is arranged on one side of each supporting table, a rotating part is arranged at the upper end of each vibration mechanism, and a hot press mechanism is arranged on one side of each rotating part. The hot-pressing mechanism is integrally turned over by 0-90 degrees through the rotating part, an adjusting assembly used for adjusting the thickness of a glue solution between a laminate and a copper foil is arranged on the inner side of the supporting table, and a glue feeding assembly used for injecting the glue solution is further arranged on one side of the base and the hot-pressing mechanism. The device is simple in structure and reasonable in design, the gap between the copper foil and the laminated board is enlarged, glue is vertically injected, finally, the copper foil and the laminated board are compressed to the standard thickness in the full-glue state, the problem of bubble residues in the hot-press forming process and after hot-press forming of the copper-clad laminated board is thoroughly eradicated, the forming quality is guaranteed, and the production efficiency is improved. And the service life and the reliability are obviously improved.

Description

Technical Field

[0001] This invention relates to the field of copper clad laminate production equipment technology, specifically a hot pressing forming equipment for copper cladding of laminates. Background Technology

[0002] Copper-clad laminates are a key basic material in the electronics industry, widely used in printed circuit boards, electronic packaging, and high-frequency communication equipment. They are formed by bonding an insulating substrate to copper foil through a hot-pressing process, possessing both excellent electrical properties and meeting requirements for mechanical strength and heat resistance. In the copper-clad laminate process, the performance of the hot-pressing equipment directly affects the quality of the copper plating, especially requiring a tight, bubble-free bond between the copper foil and the substrate to ensure the accuracy and reliability of subsequent circuit processing.

[0003] Traditional devices have the following shortcomings: Currently, copper cladding on laminates primarily utilizes hot presses to bond copper foil to a substrate under high temperature and pressure. In traditional processes, the hot press applies uniform pressure and heats the material, melting and flowing the resin for coating. Bonding is then achieved after the copper foil and substrate cool. However, existing technologies have certain drawbacks in practice. First, ambient air can easily remain within the resin, forming bubbles after pressing. Second, the resin releases volatile gases during melting; if venting is inadequate, these gases can become trapped between the copper foil and substrate, forming bubbles. Furthermore, uneven pressure distribution or excessively rapid heating during hot pressing can lead to insufficient resin flow and loose bonding in localized areas, further exacerbating bubble formation. These bubbles not only reduce the dielectric strength of the laminate but can also cause copper foil delamination or substrate cracking due to stress concentration during subsequent high-temperature soldering or machining, severely impacting the reliability and lifespan of the PCB. Summary of the Invention

[0004] The purpose of this invention is to provide a hot pressing forming equipment for copper-clad laminates to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a hot pressing forming device for copper cladding of laminates, comprising a base, on which support platforms are symmetrically arranged, a vibration mechanism is provided on one side of the support platforms, a rotating part is provided at the upper end of the vibration mechanism, a hot pressing mechanism is provided on one side of the rotating part, the hot pressing mechanism is rotated 0-90 degrees as a whole through the rotating part, an adjusting component for adjusting the thickness of the adhesive between the laminate and the copper foil is provided on the inner side of the support platform, and an adhesive injection component for adding adhesive is also provided on one side of the base and the hot pressing mechanism; The hot pressing mechanism includes: A hot-pressing shell is provided, with one side of the hot-pressing shell away from the opening end connected to the drive end of the rotating part. An upper hydraulic cylinder is provided in the mounting cavity on the hot-pressing shell. An upper piston rod is slidably and sealed to one end of the upper hydraulic cylinder located inside the hot-pressing shell. A positioning plate is provided to one end of the upper piston rod. The four sides of the positioning plate are slidably connected to the inner wall of the hot-pressing shell. A forming pressure plate for pressing copper foil is provided at the end of the positioning plate away from the upper piston rod. Several return springs are provided around the hot-pressing shell located around the upper hydraulic cylinder through mounting grooves. The other end of the return spring is connected to the positioning plate and is used to drive the forming pressure plate to return to its original position after hot pressing. The lower hydraulic cylinder is located in the cavity of the support platform at the upper end of the adjusting assembly. The upper end of the lower hydraulic cylinder is slidably sealed to a lower piston rod. A high-pressure oil pipe is connected between the oil storage end of the lower hydraulic cylinder and the upper hydraulic cylinder. A pneumatic positioning assembly is disposed on both sides of the hot press shell for hot pressing positioning of the laminate and copper foil.

[0006] Preferably, the adjustment component includes: A lead screw is vertically rotatably connected to a cavity inside the support platform and is a self-locking lead screw. The lead screw is arranged in a ring around the lower hydraulic cylinder with the lower hydraulic cylinder as the axis. A lifting slider is threaded onto the lead screw, and one side of the lifting slider is connected to the lower end face of the lower hydraulic cylinder for adjusting the height of the lower hydraulic cylinder. A positioning shaft is rotatably connected to the lower end of the lower hydraulic cylinder in the cavity inside the support platform. A spur gear set is provided at the upper end of the positioning shaft and the lower end of the lead screw, and a bevel gear set is provided at the lower end of the positioning shaft.

[0007] Preferably, the vibration mechanism includes: A vibration table, one side of which is slidably connected to one side of a support table via a sliding strip, and the rotating part is disposed at the upper end of the vibration table; The vibrating columns are symmetrically arranged on the upper surface of the base. The upper end of the vibrating column fits into the groove at the lower end of the vibration table. The vibrating column drives the vibration table to vibrate up and down at high frequency through a built-in motor. Sliding rods are provided on both sides of the vibrating column on the upper surface of the base to improve the stability of the vibration table.

[0008] Preferably, the glue dispensing assembly includes: A glue storage tank is centrally located on the upper surface of the base, and liquid pumps are symmetrically arranged on both sides of the glue storage tank. A sliding rubber plate is slidably connected in a groove on one side of the opening end of the hot press shell and its end end matches the end of the forming plate. An L-shaped glue inlet groove is longitudinally opened in the sliding rubber plate. The liquid outlet end of the L-shaped glue inlet groove faces the hot press shell. A spring conduit is connected between the liquid inlet end of the L-shaped glue inlet groove and the liquid outlet end of the liquid pump. A magnetic suction element is provided on the side adjacent to the sliding rubber plate and the forming pressure plate to ensure sealing during glue injection.

[0009] Preferably, the pneumatic positioning assembly includes: A pneumatic housing, which is disposed on one side of the upper surface of the base and connected to an external air pump; An air groove is formed inside the lower inner wall of the hot press shell and communicates with the lower inner wall surface of the hot press shell through air holes for adsorbing and positioning laminates or copper foil. A negative pressure tube is provided, with one end of which is located in a through hole on the forming plate for adsorbing and positioning copper foil or laminate. The other end of the negative pressure tube passes through the positioning plate and is connected to the hot press shell by a connecting pipe. Both the connecting pipe and the control end of the air groove are connected to a conduit assembly for connection to the pneumatic box.

[0010] Preferably, a heating layer is provided on the lower inner wall of the hot press shell and on the upper end surface of the forming plate.

[0011] Preferably, both the upper piston rod and the lower piston rod are slidably and sealingly connected to the upper hydraulic cylinder and the lower hydraulic cylinder via Gladley seals.

[0012] Preferably, sealing strips are provided at the parts where the sliding rubber plate is in contact with the hot press shell and the forming plate.

[0013] Preferably, both the sliding rubber plate and the forming pressure plate have matching inclined grooves at their ends.

[0014] Compared with the prior art, the beneficial effects of the present invention are: This invention incorporates a hot-pressing mechanism that widens the gap between the copper foil and the laminate before pressing them together, and vertically injects a large amount of resin adhesive to make the thickness of the resin adhesive between them far exceed the molding requirements. Combined with high-frequency vibration and the buoyancy of the bubbles themselves, the bubbles are actively expelled upwards. Finally, the copper foil and the laminate are compressed to the standard thickness under full adhesive conditions. This completely eliminates the problem of residual bubbles during and after the hot-pressing process of the copper foil laminate, ensuring molding quality and significantly improving service life and reliability. This invention, by incorporating an adjustment component, precisely controls the compression of the lower piston rod on the lower hydraulic cylinder by adjusting the height of the lower hydraulic cylinder. This enables flexible adjustment of the resin adhesive molding thickness between the copper foil and the laminate. The operation is simple, the design is reasonable, and it significantly improves the adaptability of the hot pressing molding equipment to copper-clad laminates with different adhesive thicknesses. It is highly practical and better meets the actual production needs of copper-clad laminates with multiple specifications. This invention incorporates a vibration mechanism that allows air bubbles in the resin solution to rise rapidly. Air bubbles adsorbed onto the inner walls of the laminate and copper foil also detach and rise quickly under vibration, significantly improving the efficiency of air bubble removal and reducing the impact of the resin solution's viscosity on air bubble removal. At the same time, the longitudinal sliding connection between the vibration table and the support table effectively reduces the transmission of vertical vibration to the support table, ensuring that long-term high-frequency vibration will not affect the adjustment accuracy of the adjustment component and extending the working life of the adjustment component. This invention, by incorporating a glue inlet assembly, not only satisfies the resin glue filling requirements between the copper foil and the laminate, but also ensures that excess resin glue during the pressing process can be simultaneously recycled and reused, thereby improving the recycling rate of the glue and avoiding waste and environmental damage. This invention, by incorporating a pneumatic positioning component, enables pre-positioning of the copper foil and laminate before resin injection, allowing the resin to be precisely injected between the copper foil and laminate. It also prevents the copper foil and laminate from tilting within the hot press shell, thus avoiding uneven resin injection and further improving the molding quality of the copper foil laminate. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of the entire invention; Figure 2 This is the overall front view of the present invention; Figure 3 This is a front view schematic diagram of the internal structure of the present invention; Figure 4 For the present invention Figure 3 An enlarged view of point A in the diagram; Figure 5 For the present invention Figure 3 An enlarged schematic diagram at point B; Figure 6 For the present invention Figure 3 Enlarged view of point C; Figure 7 This is a three-dimensional schematic diagram of the positioning plate and forming pressure plate of the present invention; Figure 8 This is a three-dimensional schematic diagram of the hot-pressed shell of the present invention in a vertical state; Figure 9 This is a front view of the hot-pressed shell of the present invention in its vertical state; Figure 10 This is a schematic diagram (A) illustrating the working principle of the hot pressing of the present invention. Figure 11 This is a schematic diagram (B) illustrating the working principle of the hot pressing of the present invention. Figure 12 This is a schematic diagram (C) illustrating the working principle of the hot pressing of the present invention.

[0016] In the diagram: 1. Base; 2. Support platform; 3. Vibration mechanism; 301. Vibration table; 302. Vibration column; 303. Sliding rod; 4. Rotating part; 5. Hot pressing mechanism; 501. Hot pressing shell; 502. Upper hydraulic cylinder; 503. Upper piston rod; 504. Positioning plate; 505. Forming plate; 506. Return spring; 507. Lower hydraulic cylinder; 508. Lower piston rod; 509. High-pressure oil pipe; 6. Adjustment assembly; 601. Lead screw; 60 2. Lifting slider; 603. Positioning shaft; 604. Spur gear set; 605. Bevel gear set; 7. Glue inlet assembly; 701. Glue storage tank; 702. Liquid pump; 703. Sliding glue plate; 704. L-shaped glue inlet groove; 705. Spring guide tube; 706. Magnetic suction component; 8. Pneumatic positioning assembly; 801. Pneumatic box; 802. Air groove; 803. Negative pressure pipe; 804. Connecting pipe; 805. Guide tube assembly; 9. Heating layer; 10. Sealing strip. Detailed Implementation

[0017] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0018] It should be noted that when an element is referred to as "fixed," "mounted," "connected," or "set" with another element, it can be directly on or indirectly on the other element. It should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention.

[0019] As a further improvement of the present invention, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0020] Please see Figure 1-12 As shown, the present invention provides a technical solution for a hot pressing forming equipment for copper-clad laminates: a hot pressing forming equipment for copper-clad laminates includes a base 1, a support platform 2 symmetrically mounted on the base 1, a vibration mechanism 3 mounted on one side of the support platform 2, a rotating part 4 provided at the upper end of the vibration mechanism 3, and a hot pressing mechanism 5 for pressing the laminate and copper foil mounted on one side of the rotating part 4. The vibration mechanism 3 is used to vibrate and float the air bubbles in the resin adhesive of the laminate and copper foil. The hot pressing mechanism 5 is rotated 0-90 degrees by the rotating part 4. An adjusting component 6 for adjusting the thickness of the resin adhesive between the laminate and the copper foil is installed on the inner side of the support platform 2. A glue injection component 7 for injecting resin adhesive is also installed on one side of the base 1 and the hot pressing mechanism 5. When the laminate and copper foil are pressed to a specified thickness, excess resin adhesive will be discharged through the glue injection component 7. The hot pressing mechanism 5 includes a hot pressing shell 501, a lower hydraulic cylinder 507, and a pneumatic positioning assembly 8. The side of the hot pressing shell 501 away from the open end is connected to the drive end of the rotating part 4. The rotating part 4 drives the hot pressing shell 501 to rotate between 0 and 90 degrees, which is the conversion between the vertical and horizontal states of the hot pressing shell 501. An upper hydraulic cylinder 502 is fixedly installed in the mounting cavity on the shell of the hot pressing shell 501. An upper piston rod 503 is slidably and sealed to one end of the upper hydraulic cylinder 502 located inside the hot pressing shell 501. A positioning plate 504 is installed at one end of the upper piston rod 503. A forming plate 505 for pressing copper foil is provided at the end of the positioning plate 504 away from the upper piston rod 503. One side of the forming plate 505 is located outside the open end of the hot pressing shell 501. The other three sides of the forming plate 505 are attached to the inner wall of the hot pressing shell 501 and the sealing performance is maintained by providing sliding seals to prevent resin leakage. The four sides of the positioning plate 504 are slidably connected to the inner wall of the hot press shell 501 to prevent the forming plate 505 from tilting during movement. The hot press shell 501 is located around the upper hydraulic cylinder 502 and has several return springs 506 installed in the mounting slots. The other end of the return spring 506 is connected to the positioning plate 504 and is used to drive the forming plate 505 to return after hot pressing. In other words, the return spring 506 continuously applies tension to the positioning plate 504.

[0021] The lower hydraulic cylinder 507 is movably mounted in the cavity on the support platform 2 and fixed to the upper end of the adjusting assembly 6. A lower piston rod 508 is slidably and sealingly connected to the upper end of the lower hydraulic cylinder 507. A rotating pressure plate is rotatably connected to the end of the lower piston rod 508 for contacting the lower end face of the hot press shell 501. A high-pressure oil pipe 509 connects the oil storage ends of the lower hydraulic cylinder 507 and the upper hydraulic cylinder 502, and is used to transport hydraulic oil between the upper hydraulic cylinder 502 and the lower hydraulic cylinder 507. Pneumatic positioning assemblies 8 are installed on both sides of the hot press shell 501 for hot pressing positioning of the laminate and copper foil.

[0022] When the hot press needs to perform lamination of boards and copper foil, such as Figure 8 As shown, the external controller first controls the rotating part 4 to drive the hot press shell 501 to rotate to a vertical position. At this time, the forming plate 505 and the positioning plate 504 are close to one side of the inner wall of the hot press shell 501 under the pulling force of the return spring 506. At this time, the gap between the forming plate 505 and the other side of the inner wall of the hot press shell 501 reaches its maximum. The lower piston rod 508 is pushed out by the lower hydraulic cylinder 507, and the end of the lower piston rod 508 is higher than the table surface of the support platform 2. Figure 10 As shown, when the hot press shell 501 is in a vertical position, the glue injection assembly 7 is opened by an external controller or operator, and the copper foil and laminate are inserted through the upper opening of the hot press shell 501 by a robotic arm until both are positioned by the pneumatic positioning assembly 8. Then, as... Figure 11 As shown, the glue inlet assembly 7 is closed by an external controller or operator, filling the space between the copper foil and the laminate with resin. Then, the vibration mechanism 3 is activated, using high-frequency vibration to force air bubbles in the resin to the surface. Finally, the external controller controls the rotating part 4 to drive the hot press shell 501 to rotate rapidly to a horizontal position. Figure 12 As shown.

[0023] Before the hot press shell 501 rotates to a horizontal position, its lower end face will first contact the end of the lower piston rod 508 and press the lower piston rod 508 into the lower hydraulic cylinder 507. After the oil pressure in the lower hydraulic cylinder 507 increases, it is transported to the upper hydraulic cylinder 502 through the high-pressure oil pipe 509, which in turn pushes the upper piston rod 503, the positioning plate 504 and the forming pressure plate 505 to slide a certain distance against the elastic force of the return spring 506. The gap between the copper foil and the laminate is reduced synchronously. Excess resin and gas accumulated at the end flow back through the glue inlet assembly 7. When the hot press shell 501 rotates to a completely horizontal position, the lower piston rod 508 is compressed to the lowest point, and the gap between the copper foil and the laminate, that is, the thickness of the resin, reaches the minimum value. Once the resin has cooled and solidified, the external controller can rotate the hot press shell 501 back to a vertical position and open the glue inlet assembly 7. As the upper end of the lower piston rod 508 loses pressure, the oil pressure in the lower hydraulic cylinder 507 decreases, and the reset spring 506 can pull the upper piston rod 503, the positioning plate 504, and the forming plate 505 to move back to the upper hydraulic cylinder 502 to reset. The increased distance between the forming plate 505 and the lower inner wall of the hot press shell 501 facilitates the removal of the formed copper-clad laminate. The hydraulic oil in the upper hydraulic cylinder 502 flows back into the lower hydraulic cylinder 507 to push the lower piston rod 508 out again.

[0024] The hot pressing mechanism 5 widens the gap between the laminate and the copper foil before pressing them together, and a large amount of resin is injected vertically to make the thickness of the resin between them far exceed the molding requirements. Then, high-frequency vibration and the buoyancy of the bubbles themselves make the bubbles actively expel upwards. Finally, the copper foil and the laminate are compressed to the standard thickness in a fully glued state. This completely eliminates the problem of residual bubbles during and after the hot pressing process of the copper foil laminate, ensuring molding quality and significantly improving service life and reliability.

[0025] The adjusting assembly 6 includes a lead screw 601 and a positioning shaft 603. The lead screw 601 is vertically rotatably connected to the cavity inside the support platform 2 and is a self-locking type. The lead screws 601 are arranged in a ring around the lower hydraulic cylinder 507, with the lower hydraulic cylinder 507 as the axis. There are 3-4 lead screws 601. A lifting slider 602 is threaded onto the lead screw 601. One side of the lifting slider 602 is fixedly connected to the lower end face of the lower hydraulic cylinder 507 for adjusting the height of the lower hydraulic cylinder 507. The positioning shaft 603 is rotatably connected to the cavity inside the support platform 2 and located at the lower end of the lower hydraulic cylinder 507. A spur gear set 604 is installed at the upper end and the lower end of the lead screw 601. The spur gear set 604 consists of a driving wheel installed at the upper end of the positioning shaft 603 and a driven wheel installed at the lower end of the lead screw 601. The driving wheel drives all driven wheels to rotate synchronously. A bevel gear set 605 is installed at the lower end of the positioning shaft 603. The bevel gear set 605 consists of a large bevel gear installed at the lower end of the positioning shaft 603 and a small bevel gear rotatably set at the lower end of the support platform 2. The small bevel gear meshes with the large bevel gear, and the axle of the small bevel gear is provided with an internal hexagonal groove at the end located outside the support platform 2.

[0026] When adjusting the resin thickness between the molded copper foil and the laminate, the operator can adjust it by rotating the small bevel gear with an internal hexagonal screw. The small bevel gear drives all driven gears and the lead screw 601 to rotate synchronously through the large bevel gear and the drive wheel. The lead screw 601, by rotating, drives the lifting slider 602 to rise and fall, thereby adjusting the height of the lower hydraulic cylinder 507. When the lower hydraulic cylinder 507 rises, the initial height of the lower piston rod 508 will also rise when the hot press shell 501 is in a vertical position. Therefore, when the hot press shell 501 rotates to a horizontal position, the compression of the lower piston rod 508 on the lower hydraulic cylinder 507 will increase, and the stroke of the upper piston rod 503, the positioning plate 504, and the forming plate 505 will also increase, thus reducing the resin thickness between the copper foil and the laminate after hot pressing. Similarly, when it is necessary to increase the resin thickness after molding, the height of the lower hydraulic cylinder 507 can be adjusted to lower it.

[0027] An observation slot can be provided on the support platform 2 to observe the height of the lower hydraulic cylinder 507, thereby determining the molding thickness of the resin adhesive. Alternatively, the molding thickness can be calculated by measuring the extension height of the lower piston rod 508. A sample can be performed before starting the machine, and further adjustments can be made based on the current molding thickness. The diameter of the lower hydraulic cylinder 507 should be smaller than the diameter of the upper hydraulic cylinder 502, and the greater the difference in diameter, the higher the adjustment accuracy.

[0028] By adjusting component 6 and adjusting the height of the lower hydraulic cylinder 507, the compression amount of the lower piston rod 508 on the lower hydraulic cylinder 507 is precisely controlled, realizing flexible adjustment of the resin adhesive molding thickness between the copper foil and the laminate. The operation is simple and the design is reasonable, which significantly improves the adaptability of the hot pressing molding equipment to copper-clad laminates with different adhesive thicknesses. It is highly practical and better meets the actual production needs of copper-clad laminates with multiple specifications.

[0029] The vibration mechanism 3 includes a vibration table 301 and a vibration column 302. One side of the vibration table 301 is slidably connected to one side of the support platform 2 via a sliding strip. When the end faces of the vibration table 301 and the support platform 2 are flush, the sliding strip on one side of the vibration table 301 is located in the middle section of the sliding groove on one side of the support platform 2. The rotating part 4 is installed at the upper end of the vibration table 301. The vibration column 302 is symmetrically installed on the upper end surface of the base 1. The upper end of the vibration column 302 fits into the groove at the lower end of the vibration table 301, and a buffer pad is provided on the fitting surface. The vibration column 302 drives the vibration table 301 to vibrate up and down at high frequency through a built-in motor. Sliding rods 303 are installed on both sides of the vibration column 302 on the upper end surface of the base 1 to improve the stability of the vibration table 301 and prevent tilting.

[0030] After the rotating part 4 drives the hot press shell 501 to a vertical position and the resin is added, the vibrating column 302 can be activated to make the hot press shell 501 vibrate at high frequency. During the vibration, the air bubbles in the resin can rise quickly, and the air bubbles adsorbed on the inner wall of the laminate and copper foil are also detached and floated under the action of vibration. At the same time, during the up and down vibration of the vibration table 301, it is connected to the slide groove on one side of the support table 2 through the slide bar, which reduces the impact of vibration on the support table 2.

[0031] The vibration mechanism 3 allows air bubbles in the resin solution to rise quickly, and air bubbles adsorbed on the inner walls of the laminate and copper foil also fall off and rise quickly under the vibration, significantly improving the efficiency of air bubble removal and reducing the impact of the viscosity of the resin solution on air bubble removal. At the same time, the longitudinal sliding connection between the vibration table 301 and the support table 2 effectively reduces the transmission of vertical vibration to the support table 2, ensuring that long-term high-frequency vibration will not affect the adjustment accuracy of the adjustment component 6 and extend the working life of the adjustment component 6.

[0032] The glue inlet assembly 7 includes a glue tank 701, a sliding glue plate 703, and a magnetic suction component 706. The glue tank 701 is centrally mounted on the upper surface of the base 1, and liquid pumps 702 are symmetrically mounted on both sides of the glue tank 701. The sliding glue plate 703 is slidably connected to a groove on one side of the opening end of the hot press shell 501, and its end matches the end of the forming pressure plate 505. An L-shaped glue inlet groove 704 is longitudinally formed within the sliding glue plate 703, with the outlet end of the L-shaped glue inlet groove 704 facing the hot press shell 501. A spring guide tube 705 connects the inlet end of the L-shaped glue inlet groove 704 and the outlet end of the liquid pump 702. There can be several L-shaped glue inlets 704, and each end is connected to the spring guide tube 705. The contracted shape of the spring guide tube 705 is as follows: Figure 2 As shown, the stretched shape of the spring guide tube 705 is as follows: Figure 9 As shown. The magnetic suction component 706 is installed on the side adjacent to the sliding rubber plate 703 and the molding pressure plate 505 to ensure the sealing during glue injection. The magnetic suction component 706 consists of an electromagnet installed on the sliding rubber plate 703 and a permanent magnet installed on the molding pressure plate 505. After the sliding rubber plate 703 and the molding pressure plate 505 are connected, the electromagnet is activated to ensure the connection strength between the two.

[0033] When the hot press shell 501 is in a vertical position and resin needs to be injected between the copper foil and the laminate, the operator controls the sliding adhesive plate 703 to push towards the forming plate 505. Alternatively, a drive unit can be added, and an external controller can control the sliding adhesive plate 703 to adhere to the end of the forming plate 505. Then, the magnetic suction component 706 is energized to create an attraction between the two. Subsequently, the external controller controls the start of the liquid pump 702, which draws the resin from the glue storage tank 701 and injects it into the hot press shell 501 to fill the space between the copper foil and the laminate. During the process of flattening the hot press shell 501, as the forming plate 505 applies pressure to the copper foil and the laminate, excess resin and air bubbles at the ends are discharged and flow back to the glue storage tank 701 through the spring conduit 705 and the liquid pump 702. Air bubbles enter the glue storage tank 701 and float to the surface, exiting through the vent at the top. When it is necessary to separate the sliding adhesive plate 703 from the forming pressure plate 505 and remove the formed copper-clad laminate, the power to the magnetic suction component 706 can be turned off or the current direction of the electromagnet on the magnetic suction component 706 can be changed.

[0034] The glue injection assembly 7 not only meets the resin injection requirements between the copper foil and the laminate, but also ensures that excess resin during the pressing process can be simultaneously recycled and reused, thereby improving the recycling rate of the glue and avoiding waste and environmental damage.

[0035] The pneumatic positioning assembly 8 includes a pneumatic housing 801, an air groove 802, and a negative pressure pipe 803. The pneumatic housing 801 is mounted on one side of the upper surface of the base 1 and connected to an external air pump. The air groove 802 is formed inside the lower inner wall of the hot press shell 501 and communicates with the lower inner wall surface of the hot press shell 501 through an extended air hole for adsorbing and positioning laminates or copper foils. The end of the negative pressure pipe 803 is connected to a through hole in the forming plate 505 for adsorbing and positioning copper foils or laminates. The other end of the negative pressure pipe 803 passes through the positioning plate 504 and the hot press shell 501 and is connected to a connecting pipe 804. The control ends of the connecting pipe 804 and the air groove 802 are both connected to conduit assemblies 805 for connection to the pneumatic housing 801.

[0036] After the copper foil and laminate are placed inside the hot press shell 501, an external air pump controls the pneumatic box 801 to generate negative pressure. This simultaneously generates negative pressure at the air vents in the air groove 802 on the inner wall of the hot press shell 501 and at the air vents in the negative pressure pipe 803 on the forming plate 505, effectively adsorbing and positioning the copper foil and laminate. When placing the copper foil and laminate, they should be placed as close as possible to the inner wall of the forming plate 505 and the hot press shell 501 to facilitate negative pressure adsorption and positioning.

[0037] The pneumatic positioning component 8 enables the pre-positioning of the copper foil and laminate before the resin is added, allowing the resin to be accurately added between the copper foil and the laminate. This also prevents the copper foil and the laminate from tilting within the hot press shell 501, thus avoiding uneven resin addition and further improving the molding quality of the copper foil laminate.

[0038] A heating layer 9 is attached to the lower inner wall of the hot press shell 501 and the upper surface of the molding plate 505. The heating layer 9 can ensure the fluidity of the resin liquid between the copper foil and the laminate, and prevent the liquid from becoming viscous or solidifying in advance.

[0039] Both the upper piston rod 503 and the lower piston rod 508 are slidably sealed to the upper hydraulic cylinder 502 and the lower hydraulic cylinder 507 through Glyd seal rings. The Glyd seal rings can ensure the bidirectional sliding sealing performance of the upper piston rod 503 and the lower piston rod 508.

[0040] Sealing strips 10 are installed at the parts where the sliding rubber plate 703 is in contact with the hot press shell 501 and the forming plate 505. The sealing strips 10 ensure the sealing performance of each contact surface of the sliding rubber plate 703.

[0041] Both the sliding rubber plate 703 and the molding plate 505 have matching inclined grooves at their ends. When the sliding rubber plate 703 slides, it can have a certain gap with the edge of the hot press shell 501 to facilitate movement. However, after the sliding rubber plate 703 and the molding plate 505 are attached, the molding plate 505 will apply a pushing force towards the hot press shell 501 to the sliding rubber plate 703 through the inclined groove, thereby ensuring the sealing after docking and preventing resin from overflowing.

[0042] Working principle: When this hot press needs to perform lamination of boards and copper foil, such as... Figure 8 As shown, the external controller first controls the rotating part 4 to drive the hot press shell 501 to rotate to a vertical position. At this time, under the tension of the return spring 506, the gap between the forming plate 505 and the inner wall of the hot press shell 501 reaches its maximum. Simultaneously, the rotating bevel gear set 605 drives the lead screw 601 to rotate and adjust the height of the lower hydraulic cylinder 507, thereby setting the thickness of the adhesive after the copper foil and laminate are formed. Figure 10 As shown, the magnetic suction component 706 is then de-energized by an external controller or operator, driving the sliding adhesive plate 703 to the end away from the forming plate 505. Next, the copper foil and laminate are inserted through the upper opening of the hot press shell 501 via a robotic arm. An external air pump controls the pneumatic box 801 to generate negative pressure, effectively adsorbing and positioning the copper foil and laminate on the inner walls of the forming plate 505 and the hot press shell 501. The heating layer 9 is then energized to begin heating. Subsequently... Figure 11 As shown, the sliding adhesive plate 703 is driven by an external controller or operator to adhere to the end of the molding plate 505, and the magnetic suction component 706 is energized. At this time, the liquid pump 702 can be activated to fill the space between the copper foil and the laminate with resin. Next, the vibrating column 302 is activated, using high-frequency up-and-down vibration to force air bubbles in the resin to rise and be expelled. Then, the external controller controls the rotating part 4 to drive the hot press shell 501 to rotate rapidly to a horizontal position, as shown. Figure 12 As shown.

[0043] When the hot press shell 501 rotates to a horizontal position, its lower end face first contacts the end of the lower piston rod 508, pressing the lower piston rod 508 into the lower hydraulic cylinder 507. The oil pressure in the lower hydraulic cylinder 507 increases and is then transported to the upper hydraulic cylinder 502 via the high-pressure oil pipe 509. This, in turn, pushes the upper piston rod 503, the positioning plate 504, and the forming plate 505 to press the copper foil and laminate together. Excess resin and accumulated gas at the ends flow back into the resin storage tank 701. When the hot press shell 501 rotates to a completely horizontal position, the copper foil and laminate reach the set pressing thickness. After the resin cools and solidifies, the external controller can control the hot press shell 501 to rotate back to a vertical position and de-energize the magnetic suction component 706 to open the sliding adhesive plate 703. As the upper end of the lower piston rod 508 loses pressure, the oil pressure in the lower hydraulic cylinder 507 decreases. The return spring 506 can then pull the upper piston rod 503 to increase the distance between the forming plate 505 and the inner wall of the hot press shell 501 to restore the original pressure, making it easier to remove the formed copper-clad laminate. The hydraulic oil in the upper hydraulic cylinder 502 flows back into the lower hydraulic cylinder 507 to push the lower piston rod 508 out again.

[0044] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0045] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hot pressing forming equipment for copper-clad laminates, comprising a base (1), wherein support platforms (2) are symmetrically arranged on the base (1), characterized in that: A vibration mechanism (3) is provided on one side of the support platform (2), a rotating part (4) is provided at the upper end of the vibration mechanism (3), a hot pressing mechanism (5) is provided on one side of the rotating part (4), the hot pressing mechanism (5) rotates 0-90 degrees through the rotating part (4), an adjustment component (6) for adjusting the thickness of the adhesive between the layer plate and the copper foil is provided on the inner side of the support platform (2), and an adhesive injection component (7) for adding adhesive is also provided on one side of the base (1) and the hot pressing mechanism (5). The hot pressing mechanism (5) includes: A hot press shell (501) is provided, with one side of the hot press shell (501) away from the opening end connected to the driving end of the rotating part (4). An upper hydraulic cylinder (502) is provided in the mounting cavity on the hot press shell (501). An upper piston rod (503) is slidably and sealed to one end of the upper hydraulic cylinder (502) located inside the hot press shell (501). A positioning plate (504) is provided at one end of the upper piston rod (503). The four sides of the positioning plate (504) are aligned with the upper piston rod (503). The inner wall of the hot press shell (501) is slidably connected. The positioning plate (504) is provided with a forming plate (505) for pressing copper foil at one end away from the upper piston rod (503). The hot press shell (501) is located around the upper hydraulic cylinder (502) and is provided with a number of return springs (506) through the opening of the mounting groove. The other end of the return spring (506) is connected to the positioning plate (504) for driving the forming plate (505) to return after hot pressing. The lower hydraulic cylinder (507) is located in the cavity on the support platform (2) at the upper end of the adjusting assembly (6). The upper end of the lower hydraulic cylinder (507) is slidably sealed to the lower piston rod (508). A high-pressure oil pipe (509) is connected between the lower hydraulic cylinder (507) and the oil storage end of the upper hydraulic cylinder (502). Pneumatic positioning assembly (8) is provided on both sides of the hot press shell (501) for hot pressing positioning of the laminate and copper foil.

2. The hot pressing forming equipment for copper-clad laminates according to claim 1, characterized in that: The adjustment component (6) includes: A lead screw (601) is vertically rotatably connected to the cavity inside the support platform (2) and is a self-locking lead screw. The lead screw (601) is arranged in a ring around the lower hydraulic cylinder (507) with the lower hydraulic cylinder (507) as the axis. A lifting slider (602) is threaded onto the lead screw (601). One side of the lifting slider (602) is connected to the lower end face of the lower hydraulic cylinder (507) to adjust the height of the lower hydraulic cylinder (507). The positioning shaft (603) is rotatably connected to the cavity inside the support platform (2) and located at the lower end of the lower hydraulic cylinder (507). The upper end of the positioning shaft (603) and the lower end of the lead screw (601) are provided with a spur gear set (604), and the lower end of the positioning shaft (603) is provided with a bevel gear set (605).

3. The hot pressing forming equipment for copper-clad laminates according to claim 1, characterized in that: The vibration mechanism (3) includes: A vibration table (301) is provided, one side of which is slidably connected to one side of the support table (2) by means of a sliding strip, and the rotating part (4) is provided at the upper end of the vibration table (301). Vibration column (302) is symmetrically arranged on the upper surface of the base (1). The upper end of the vibration column (302) fits into the groove at the lower end of the vibration table (301). The vibration column (302) drives the vibration table (301) to vibrate up and down at high frequency through the built-in motor. Sliding rods (303) are provided on both sides of the vibration column (302) on the upper surface of the base (1) to improve the stability of the vibration table (301).

4. The hot pressing forming equipment for copper-clad laminates according to claim 3, characterized in that: The glue injection assembly (7) includes: A glue storage tank (701) is centrally located on the upper surface of the base (1), and liquid pumps (702) are symmetrically arranged on both sides of the glue storage tank (701). A sliding rubber plate (703) is slidably connected in a groove on one side of the opening end of the hot press shell (501) and its end end matches the end of the forming plate (505). An L-shaped glue inlet groove (704) is longitudinally opened in the sliding rubber plate (703). The liquid outlet end of the L-shaped glue inlet groove (704) faces the hot press shell (501). A spring conduit (705) is connected between the liquid inlet end of the L-shaped glue inlet groove (704) and the liquid outlet end of the liquid pump (702). A magnetic suction element (706) is provided on the side adjacent to the sliding adhesive plate (703) and the molding pressure plate (505) to ensure sealing during adhesive injection.

5. The hot pressing forming equipment for copper-clad laminates according to claim 4, characterized in that: The pneumatic positioning assembly (8) includes: Pneumatic housing (801), wherein the pneumatic housing (801) is disposed on one side of the upper end face of the base (1) and is connected to an external air pump; Air groove (802), the air groove (802) is opened inside the lower inner wall of the hot press shell (501) and is connected to the lower inner wall surface of the hot press shell (501) through the provision of air holes for adsorbing and positioning laminate or copper foil. A negative pressure tube (803) is provided with its port located in a through hole on the forming plate (505) for adsorbing and positioning copper foil or laminate. The other end of the negative pressure tube (803) passes through the positioning plate (504) and the hot press shell (501) and is connected by a connecting tube (804). The control ends of the connecting tube (804) and the air groove (802) are both connected to a conduit assembly (805) for connecting to the pneumatic box (801).

6. The hot pressing forming equipment for copper-clad laminates according to claim 1, characterized in that: A heating layer (9) is provided on the lower inner wall of the hot press shell (501) and on the upper end surface of the forming plate (505).

7. The hot pressing forming equipment for copper-clad laminates according to claim 1, characterized in that: The upper piston rod (503) and the lower piston rod (508) are both slidably sealed to the upper hydraulic cylinder (502) and the lower hydraulic cylinder (507) through a Gladley seal ring.

8. The hot pressing forming equipment for copper-clad laminates according to claim 4, characterized in that: Sealing strips (10) are provided at the parts where the sliding rubber plate (703) is in contact with the hot press shell (501) and the forming plate (505).

9. The hot pressing forming equipment for copper-clad laminates according to claim 8, characterized in that: Both the sliding rubber plate (703) and the forming pressure plate (505) have matching inclined grooves at their ends.

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