A hot press molding apparatus for laminated copper clad

Abstract

The application discloses a kind of laminated board copper hot-press forming equipment for being used, including base, the support table is symmetrically arranged on the base, the vibration mechanism is arranged on one side of the support table, the upper end of the vibration mechanism is provided with rotating part, one side of the rotating part is provided with hot-press mechanism, the hot-press mechanism is flipped by the rotating part as a whole 0-90 degrees, the inside of the support table is provided with adjusting assembly for adjusting the glue liquid thickness between layer board and copper foil, the base and the hot-press mechanism one side are also provided with glue feeding assembly for filling glue liquid;The application is simple in structure, reasonable in design, by expanding the gap between copper foil and laminated board and vertically injecting glue, finally in full glue state copper foil and laminated board are compressed to standard thickness, completely eliminate the bubble residual problem in copper foil laminated board hot-press forming process and after hot-press forming, ensure the forming quality, significantly improve the service life and reliability.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of copper-clad plate production equipment, in particular to a hot-pressing forming equipment for laminated plate copper cladding. BACKGROUND

[0002] Copper-clad laminated plate is a key basic material in the electronic industry, widely used in printed circuit boards, electronic packaging and high-frequency communication equipment fields. It is composed of insulating substrate and copper foil by hot-pressing process, which not only has excellent electrical performance, but also meets the requirements of mechanical strength and heat resistance. In the process of laminated plate copper cladding, the performance of hot-pressing forming equipment directly affects the quality of copper cladding, especially the close combination between copper foil and substrate without air bubbles is required to ensure the accuracy and reliability of subsequent circuit processing.

[0003] The traditional device has the following disadvantages:

[0004] Currently, copper-clad laminated plate is mainly pressed by hot-pressing machine through high temperature and high pressure. In the traditional process, the hot-pressing plate applies uniform pressure to the material and heats it, so that the resin melts and flows to coat, and finally the copper foil and the substrate are bonded after cooling. However, there are still some defects in the actual operation process of the existing technology. First of all, air in the environment is more likely to remain in the resin, forming air bubbles after pressing. Secondly, volatile gases are released during the melting process of the resin, and if the exhaust is not smooth, the gases are easy to be enclosed between the copper foil and the substrate to form air bubbles. In addition, uneven pressure distribution or too fast heating rate during hot-pressing process may also cause insufficient resin flow, resulting in loose fit in local area, further aggravating the generation of air bubbles. These air bubbles not only reduce the dielectric strength of the laminated plate, but also may cause copper foil delamination or substrate cracking due to stress concentration during subsequent high-temperature welding or mechanical processing, seriously affecting the reliability and service life of PCB. SUMMARY

[0005] The purpose of the present application is to provide a hot-pressing forming equipment for laminated plate copper cladding to solve the problems raised in the background.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a hot-pressing forming equipment for laminated plate copper cladding, comprising a base, a support table is symmetrically arranged on the base, a vibration mechanism is arranged on one side of the support table, a rotating part is arranged at the upper end of the vibration mechanism, a hot-pressing mechanism is arranged on one side of the rotating part, the hot-pressing mechanism is flipped by 0-90 degrees as a whole through the rotating part, an adjusting assembly for adjusting the thickness of glue liquid between the laminated plate and the copper foil is arranged on the inner side of the support table, and a glue feeding assembly for feeding glue liquid is further arranged on one side of the base and the hot-pressing mechanism.

[0007] The hot-pressing mechanism comprises:

[0008] The hot pressing shell is connected with the driving end of the rotating part far from the opening end, an upper hydraulic cylinder is arranged in the mounting cavity on the shell body, an upper piston rod is slidably connected with one end of the upper hydraulic cylinder inside the hot pressing shell, a positioning plate is arranged on one end of the upper piston rod, the four edges of the positioning plate are slidably connected with the inner wall of the hot pressing shell, a forming pressing plate for pressing copper foil is arranged on the end of the positioning plate far from the upper piston rod, a plurality of reset springs are arranged around the upper hydraulic cylinder by opening mounting grooves on the hot pressing shell, and the other end of the reset spring is connected with the positioning plate for resetting the forming pressing plate after hot pressing.

[0009] A lower hydraulic cylinder is arranged in the cavity on the support table and located at the upper end of the adjusting assembly, a lower piston rod is slidably connected with the upper end of the lower hydraulic cylinder, and a high-pressure oil pipe is connected between the oil storage ends of the lower hydraulic cylinder and the upper hydraulic cylinder.

[0010] A pneumatic positioning assembly is arranged on both sides of the hot pressing shell for hot pressing positioning of the laminated board and copper foil.

[0011] Preferably, the adjusting assembly comprises:

[0012] A lead screw is vertically rotatably connected in the cavity inside the support table, the lead screw is a self-locking type lead screw, the lead screw is arranged around the lower hydraulic cylinder in a ring shape with the lower hydraulic cylinder as the axis, a lifting slide block is threadedly connected with the lead screw, and one side of the lifting slide block is connected with the lower end surface of the lower hydraulic cylinder for adjusting the height of the lower hydraulic cylinder.

[0013] A positioning shaft is rotatably connected in the cavity inside the support table and located at the lower end of the lower hydraulic cylinder, spur gears are arranged on the upper end of the positioning shaft and the lower end of the lead screw, and bevel gears are arranged on the lower end of the positioning shaft.

[0014] Preferably, the vibration mechanism comprises:

[0015] A vibration table is slidably connected on one side of the support table by opening a sliding strip on one side of the vibration table, and the rotating part is arranged on the upper end of the vibration table.

[0016] Vibration columns are symmetrically arranged on the upper end surface of the base, the upper end of the vibration column is fitted with the groove at the lower end of the vibration table, the vibration column drives the vibration table to vibrate up and down at high frequency through the built-in motor, and sliding rods are arranged on the upper end surface of the base and located on both sides of the vibration column to improve the stability of the vibration table.

[0017] Preferably, the glue feeding assembly comprises:

[0018] The accumulator is centrally arranged on the upper end surface of the base, and liquid pumps are symmetrically arranged on both sides of the accumulator;

[0019] The sliding rubber plate is slidingly connected in the sliding groove on one side of the opening end of the hot-pressing shell and matches the end of the forming pressing plate, an L-shaped glue inlet groove is longitudinally arranged in the sliding rubber plate, the liquid outlet end of the L-shaped glue inlet groove faces the hot-pressing shell, and a spring guide pipe is connected between the liquid inlet end of the L-shaped glue inlet groove and the liquid outlet end of the liquid pump.

[0020] The magnetic attraction member is arranged on the side adjacent to the sliding rubber plate and the forming pressing plate to ensure the sealing property during glue injection.

[0021] Preferably, the pneumatic positioning assembly comprises:

[0022] The pneumatic box is arranged on one side of the upper end surface of the base and is connected with an external air pump.

[0023] The air groove is arranged in the lower inner wall of the hot-pressing shell and is communicated with the surface of the lower inner wall of the hot-pressing shell through the air holes for adsorbing and positioning the copper foil or the laminated plate.

[0024] The negative pressure pipe is arranged in the through hole on the forming pressing plate for adsorbing and positioning the copper foil or the laminated plate, the other end of the negative pressure pipe is communicated with a connecting pipe through the positioning plate and the hot-pressing shell, and the connecting pipe and the control end of the air groove are both connected with a guide pipe group for being connected with the pneumatic box.

[0025] Preferably, the lower inner wall of the hot-pressing shell and the upper end surface of the forming pressing plate are both provided with a heating layer.

[0026] Preferably, the upper piston rod and the lower piston rod are both slidingly and sealingly connected with the upper hydraulic cylinder and the lower hydraulic cylinder through the Gley sealing ring.

[0027] Preferably, the parts, where the sliding rubber plate is attached to the hot-pressing shell and the forming pressing plate, are all provided with sealing strips.

[0028] Preferably, the end of the sliding rubber plate and the end of the forming pressing plate are both provided with matching inclined grooves.

[0029] Compared with the prior art, the present application has the following advantages:

[0030] The present application sets up a hot pressing mechanism, first pulls apart the distance between the copper foil and the laminated board before pressing, and vertically injects a large amount of resin glue, so that the thickness of the resin glue between the two is much thicker than the forming requirement, and then cooperates with high-frequency vibration and the buoyancy of the bubbles to make the bubbles actively discharge upwards, and finally compresses the copper foil and the laminated board to the standard thickness in the full glue state, completely eliminates the bubble residue problem during and after the hot pressing forming of the copper foil laminated board, ensures the forming quality, and significantly improves the service life and reliability.

[0031] The present application sets up an adjusting assembly, adjusts the height of the lower hydraulic cylinder, accurately controls the compression amount of the lower piston rod to the lower hydraulic cylinder, realizes flexible adjustment of the forming thickness of the resin glue between the copper foil and the laminated board, is simple to operate, reasonable in design, significantly improves the adaptation ability of the hot pressing forming equipment to different glue thickness specifications of the copper foil laminated board, has high practicality, and is more in line with the actual production demand of the current multi-specification copper foil laminated board.

[0032] The present application sets up a vibration mechanism, so that the bubbles in the resin glue can quickly float upwards, and the bubbles adsorbed on the inner walls of the laminated board and the copper foil also fall off and float upwards under the action of vibration, significantly improving the bubble removal efficiency and reducing the influence of the viscosity of the resin glue on the bubble removal, and at the same time, the longitudinal sliding connection mode of the vibration table and the support table also effectively reduces the transmission of the up-down vibration to the support table, ensuring that long-time high-frequency vibration does not affect the adjustment accuracy of the adjusting assembly, and prolonging the service life of the adjusting assembly.

[0033] The present application sets up a glue feeding assembly, which not only meets the resin glue injection requirement between the copper foil and the laminated board, but also ensures that the excess resin glue can be recycled and reused during the pressing process, improves the recycling rate of the glue, and avoids waste and environmental damage.

[0034] The present application sets up a pneumatic positioning assembly, realizes pre-positioning of the copper foil and the laminated board before injecting the resin glue, so that the glue can be accurately injected between the copper foil and the laminated board, and also avoids the inclination of the copper foil and the laminated board in the hot pressing shell, thereby causing uneven injection of the resin glue, and further improves the forming quality of the copper foil laminated board. BRIEF DESCRIPTION OF DRAWINGS

[0035] Figure 1 It is a whole three-dimensional schematic view of the present application;

[0036] Figure 2 It is a whole front view of the present application;

[0037] Figure 3 It is a main view of the internal structure of the present application;

[0038] Figure 4 It is aFigure 3 An enlarged schematic view at A;

[0039] Figure 5 A positioning plate and a forming press plate of the present application Figure 3 An enlarged schematic view at B;

[0040] Figure 6 A positioning plate and a forming press plate of the present application Figure 3 An enlarged schematic view at C;

[0041] Figure 7 A positioning plate and a forming press plate of the present application

[0042] Figure 8 A vertical state schematic view of a hot-pressing shell of the present application;

[0043] Figure 9 A vertical state front view of a hot-pressing shell of the present application;

[0044] Figure 10 A hot-pressing working principle diagram (A) of the present application;

[0045] Figure 11 A hot-pressing working principle diagram (B) of the present application;

[0046] Figure 12 A hot-pressing working principle diagram (C) of the present application.

[0047] In the figure: 1, base; 2, support table; 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 press plate; 506, return spring; 507, lower hydraulic cylinder; 508, lower piston rod; 509, high-pressure oil pipe; 6, adjusting assembly; 601, lead screw; 602, lifting slider; 603, positioning shaft; 604, spur gear set; 605, bevel gear set; 7, glue feeding assembly; 701, glue storage tank; 702, liquid pump; 703, sliding glue plate; 704, L-shaped glue feeding groove; 705, spring guide pipe; 706, magnetic attraction piece; 8, pneumatic positioning assembly; 801, pneumatic tank; 802, air groove; 803, negative pressure pipe; 804, connecting pipe; 805, guide pipe set; 9, heating layer; 10, sealing strip. DETAILED DESCRIPTION

[0048] In order to make the technical problems, technical solutions and beneficial effects of the present application clearer, the present application will be further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application and do not limit the present application.

[0049] It should be noted that when an element is referred to as being "fixed", "mounted", "connected" or "set" to another element, it can be directly on the other element or indirectly on the other element. It should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0050] As a further improvement of the present application, the terms "first", "second", "third" and the like are used only for descriptive purposes and cannot be understood as indicating or implying relative importance or implying the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features.

[0051] Please refer to Figures 1-12 As shown in the drawings, the present application provides a kind of technical scheme of hot press forming equipment for laminated board copper clad: a kind of hot press forming equipment for laminated board copper clad, including base 1, support table 2 is symmetrically installed on base 1, vibration mechanism 3 is installed on one side of support table 2, rotating part 4 is provided at the upper end of vibration mechanism 3, hot pressing mechanism 5 for pressing laminated board and copper foil is installed on one side of rotating part 4, vibration mechanism 3 is used to vibrate bubble in laminated board and copper foil resin glue solution and float up, hot pressing mechanism 5 is reversed by rotating part 4 0-90 degrees as a whole, adjusting assembly 6 for adjusting the thickness of resin glue solution between laminated board and copper foil is installed on the inner side of support table 2, base 1 and one side of hot pressing mechanism 5 are also installed with glue feeding assembly 7 for filling resin glue solution, when laminated board and copper foil are pressed to specified thickness, excess resin glue solution will also be discharged through glue feeding assembly 7;

[0052] The hot-pressing mechanism 5 comprises a hot-pressing shell 501, a lower hydraulic cylinder 507 and a pneumatic positioning assembly 8. The hot-pressing shell 501 is connected to the driving end of the rotating part 4 at the side away from the opening end, and the rotating part 4 drives the hot-pressing shell 501 to rotate between 0-90 degrees, i.e. the conversion between the vertical state and the horizontal state of the hot-pressing shell 501. The mounting cavity on the shell of the hot-pressing shell 501 is fixedly installed with an upper hydraulic cylinder 502. The upper end of the upper hydraulic cylinder 502 is slidingly and sealingly connected with an upper piston rod 503. The one end of the upper piston rod 503 is installed with a positioning plate 504. The end of the positioning plate 504 away from the upper piston rod 503 is provided with a forming pressing plate 505 for pressing the copper foil. One side of the forming pressing plate 505 is located outside the opening end of the hot-pressing shell 501. The other three sides of the forming pressing plate 505 are attached to the inner wall of the hot-pressing shell 501 and sealing performance is maintained by setting sliding seals to avoid leakage of resin glue. The four sides of the positioning plate 504 are slidingly connected with the inner wall of the hot-pressing shell 501 to prevent the forming pressing plate 505 from tilting during movement. The four sides of the hot-pressing shell 501 around the upper hydraulic cylinder 502 are installed with a plurality of return springs 506 by opening mounting grooves. The other end of the return spring 506 is connected with the positioning plate 504 for resetting the forming pressing plate 505 after hot-pressing, i.e. the return spring 506 continuously applies tension to the positioning plate 504.

[0053] The lower hydraulic cylinder 507 is movably installed in the cavity on the support table 2 and fixedly installed at the upper end of the adjusting assembly 6. The upper end of the lower hydraulic cylinder 507 is slidingly and sealingly connected with a lower piston rod 508. The end of the lower piston rod 508 is rotatably connected with a rotating pressing plate for contacting the lower end surface of the hot-pressing shell 501. The high-pressure oil pipe 509 is connected between the oil storage end of the lower hydraulic cylinder 507 and the upper hydraulic cylinder 502 for delivering hydraulic oil between the upper hydraulic cylinder 502 and the lower hydraulic cylinder 507. The pneumatic positioning assembly 8 is installed on both sides of the hot-pressing shell 501 for hot-pressing positioning of the copper foil and the laminated board.

[0054] When the hot-pressing machine needs to perform the pressing operation of the copper foil and the laminated board, as shown in Figure 8 , the external controller first controls the rotating part 4 to drive the hot-pressing shell 501 to rotate to the vertical state. At this time, the forming pressing plate 505 and the positioning plate 504 are close to the inner wall of one side of the hot-pressing shell 501 under the tension of the return spring 506. At this time, the gap between the forming pressing plate 505 and the inner wall of the other side of the hot-pressing shell 501 reaches the 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 table 2. Figure 10 As shown in Figure 11As shown, the external controller or the operator controls the glue feeding assembly 7 to close and fill the resin glue between the copper foil and the laminated plate, and then starts the vibration mechanism 3 to force the bubbles in the resin glue to float up by high-frequency vibration. Finally, the external controller controls the rotating part 4 to drive the hot-pressing shell 501 to rotate quickly to the horizontal state, as shown. Figure 12

[0055] Before the hot-pressing shell 501 rotates to the horizontal state, the lower end surface of the hot-pressing shell 501 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 rises, it is delivered to the upper hydraulic cylinder 502 through the high-pressure oil pipe 509, and then pushes the upper piston rod 503, the positioning plate 504 and the forming pressing plate 505 to slide out a certain distance against the elastic force of the return spring 506, the distance between the copper foil and the laminated plate is simultaneously compressed, and the excess resin glue and the gas accumulated at the end are returned through the glue feeding assembly 7. When the hot-pressing shell 501 rotates to the completely horizontal state, the lower piston rod 508 is compressed to the lowest point, and the distance between the copper foil and the laminated plate, i.e. the thickness of the resin glue, reaches the minimum value. At this time, after the resin glue cools and solidifies, the external controller controls the hot-pressing shell 501 to rotate back to the vertical state and opens the glue feeding assembly 7. Since the upper end of the lower piston rod 508 loses pressure, the oil pressure in the lower hydraulic cylinder 507 decreases, and the return spring 506 can pull the upper piston rod 503, the positioning plate 504 and the forming pressing plate 505 to move back to the upper hydraulic cylinder 502 direction, and the distance between the forming pressing plate 505 and the lower inner wall of the hot-pressing shell 501 increases to facilitate the removal of the formed copper-clad laminated plate. The hydraulic oil in the upper hydraulic cylinder 502 returns to the lower hydraulic cylinder 507 to push the lower piston rod 508 out again.

[0056] Through the hot-pressing mechanism 5, the distance between the laminated plate and the copper foil is first enlarged, a large amount of resin glue is vertically injected to make the thickness of the resin glue between the two much larger than the forming requirement, the bubbles are actively discharged upward by high-frequency vibration and the buoyancy of the bubbles themselves, and finally the copper foil and the laminated plate are compressed to the standard thickness in the full glue state, completely eliminating the problem of bubble residue in the process of hot-pressing forming and after hot-pressing forming of the copper-clad laminated plate, ensuring the forming quality and significantly improving the service life and reliability.

[0057] ​The adjusting assembly 6 comprises a lead screw 601 and a positioning shaft 603. The lead screw 601 is vertically rotatably connected in the cavity on the inner side of the support table 2, and the lead screw 601 is a self-locking type 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 center, and the number of the lead screw 601 is 3-4. A lifting slide 602 is threadedly connected to the lead screw 601. One side of the lifting slide 602 is fixedly connected to the lower end surface of the lower hydraulic cylinder 507 for adjusting the height of the lower hydraulic cylinder 507. The positioning shaft 603 is rotatably connected in the cavity on the inner side of the support table 2 at the lower end of the lower hydraulic cylinder 507. A spur gear set 604 is mounted at the lower end of the lead screw 601 and the upper end of the positioning shaft 603. The spur gear set 604 is composed of a driving gear mounted at the upper end of the positioning shaft 603 and a driven gear mounted at the lower end of the lead screw 601. The driving gear drives all the driven gears to rotate synchronously. A bevel gear set 605 is mounted at the lower end of the positioning shaft 603. The bevel gear set 605 is composed of a large bevel gear mounted at the lower end of the positioning shaft 603 and a small bevel gear rotatably arranged at the lower end of the support table 2. The small bevel gear is in meshing connection with the large bevel gear, and the wheel shaft of the small bevel gear is provided with an internal hexagonal groove at one end outside the support table 2.

[0058] When it is necessary to adjust the thickness of the resin glue liquid between the copper foil and the laminated board after forming, the staff can adjust by rotating the small bevel gear. The small bevel gear drives all the driven gears and the lead screw 601 to rotate synchronously through the large bevel gear and the driving gear. The lead screw 601 drives the lifting slide 602 to lift and thus adjusts the height of the lower hydraulic cylinder 507. When the lower hydraulic cylinder 507 is raised, the initial height of the lower piston rod 508 is raised when the hot pressing shell 501 is in a vertical state. When the hot pressing shell 501 is rotated to a horizontal state, the compression amount of the lower piston rod 508 to the lower hydraulic cylinder 507 is increased, and the stroke of the upper piston rod 503, the positioning plate 504 and the forming pressing plate 505 pushed out is also increased. The thickness of the glue liquid between the copper foil and the laminated board after hot pressing forming is reduced. Similarly, when it is necessary to increase the thickness of the resin glue liquid after forming, the height of the lower hydraulic cylinder 507 can be adjusted to be reduced.

[0059] An observation slot can be provided on the support table 2 to observe the height of the lower hydraulic cylinder 507, so as to judge the forming thickness of the resin glue liquid. The forming thickness of the resin glue liquid can also be calculated by measuring the extension height of the lower piston rod 508. A test sample can also be carried out before starting, and further adjustment can be made according to the current forming thickness. The diameter of the lower hydraulic cylinder 507 should be smaller than that of the upper hydraulic cylinder 502, and the larger the diameter difference between the two, the higher the adjustment accuracy.

[0060] By adjusting the height of the lower hydraulic cylinder 507 through the adjusting assembly 6, the compression amount of the lower piston rod 508 to the lower hydraulic cylinder 507 is accurately controlled, the forming thickness of the resin glue liquid between the copper foil and the laminated plate is flexibly adjusted, the operation is simple, the design is reasonable, the adaptation capability of the hot-press forming equipment to the copper-clad laminated plate with different glue liquid thickness specifications is significantly improved, the practicality is relatively strong, and the actual production demand of the current multi-specification copper-clad laminated plate is more met.

[0061] The vibration mechanism 3 comprises 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 table 2 by means of a slide. When the end faces of the vibration table 301 and the support table 2 are flush, the slide on one side of the vibration table 301 is located at the middle section of the slide groove on one side of the support table 2. The rotating part 4 is installed on the upper end of the vibration table 301. The vibration column 302 is symmetrically installed on the upper end face of the base 1. The upper end of the vibration column 302 is fitted with the groove at the lower end of the vibration table 301, and the fitting surface is provided with a buffer pad. The vibration column 302 drives the vibration table 301 to vibrate up and down at a high frequency by means of an internal motor. The slide rods 303 are installed on the upper end face of the base 1 on both sides of the vibration column 302 to improve the stability of the vibration table 301 and prevent it from tilting.

[0062] After the rotating part 4 drives the hot-press shell 501 to rotate to the vertical state and the resin glue liquid is filled, the vibration column 302 is started to make the hot-press shell 501 vibrate at a high frequency. In the vibration process, the bubbles in the resin glue liquid quickly float up, and the bubbles adsorbed on the inner walls of the laminated plate and the copper foil also float up under the action of vibration. At the same time, the slide keeps connected with the slide groove on one side of the support table 2 during the up-and-down vibration of the vibration table 301, reducing the influence of vibration on the support table 2.

[0063] Through the vibration mechanism 3, the bubbles in the resin glue liquid quickly float up, and the bubbles adsorbed on the inner walls of the laminated plate and the copper foil also float up quickly under the action of vibration, significantly improving the bubble removal efficiency and reducing the influence of the viscosity of the resin glue liquid on the bubble removal. At the same time, the longitudinal sliding connection of the vibration table 301 and the support table 2 also effectively reduces the transmission of the up-and-down vibration to the support table 2, ensuring that the long-time high-frequency vibration does not affect the adjustment accuracy of the adjusting assembly 6 and prolonging the service life of the adjusting assembly 6.

[0064] The glue feeding assembly 7 comprises a glue storage tank 701, a sliding glue plate 703 and a magnetic attraction member 706. The glue storage tank 701 is centrally mounted on the upper end face of the base 1, and two liquid pumps 702 are symmetrically mounted on the two sides of the glue storage tank 701. The sliding glue plate 703 is slidingly connected in a sliding groove on one side of the open end of the hot pressing shell 501 and matches the end of the forming pressing plate 505, and an L-shaped glue feeding groove 704 is longitudinally formed in the sliding glue plate 703, the outlet end of the L-shaped glue feeding groove 704 faces the hot pressing shell 501, a spring conduit 705 is connected between the inlet end of the L-shaped glue feeding groove 704 and the outlet end of the liquid pump 702, and the L-shaped glue feeding groove 704 can be several and the end thereof is connected with the spring conduit 705. The contraction form of the spring conduit 705 is shown in Figure 2 , and the stretching form of the spring conduit 705 is shown in Figure 9 . The magnetic attraction member 706 is mounted on one side adjacent to the sliding glue plate 703 and the forming pressing plate 505 to ensure the sealing during glue injection, and the magnetic attraction member 706 is composed of an electromagnet mounted on the sliding glue plate 703 and a permanent magnet mounted on the forming pressing plate 505. After the sliding glue plate 703 and the forming pressing plate 505 are abutted, the electromagnet is started to ensure the connection strength between the two.

[0065] When the hot pressing shell 501 is in a vertical state and it is necessary to inject resin glue liquid between the copper foil and the laminated plate, the sliding glue plate 703 is pushed to the forming pressing plate 505 by the staff, or the sliding glue plate 703 and the forming pressing plate 505 are end-adhered by an external controller through the installation of a driving member, then the magnetic attraction member 706 is electrified to generate an attractive force between the two, and then the liquid pump 702 is started by the external controller, and the resin glue liquid in the glue storage tank 701 is pumped out and injected into the hot pressing shell 501 to fill between the copper foil and the laminated plate. During the process of placing the hot pressing shell 501 flat, the excess resin glue liquid and the bubbles at the end are discharged and returned to the glue storage tank 701 through the spring conduit 705 and the liquid pump 702, and the bubbles enter the glue storage tank 701 and float upwards to be discharged from the upper air outlet. When it is necessary to separate the sliding glue plate 703 from the forming pressing plate 505 to take out the formed copper-clad laminated plate, the magnetic attraction member 706 is de-energized or the current direction of the electromagnet on the magnetic attraction member 706 is changed.

[0066] Through the glue feeding assembly 7, the injection demand of the resin glue liquid between the copper foil and the laminated plate is met, and the excess resin glue liquid can be synchronously recycled and reused during the pressing process, the recycling rate of the glue liquid is improved, and waste and environmental damage are avoided.

[0067] The pneumatic positioning assembly 8 comprises a pneumatic box 801, a gas groove 802 and a negative pressure pipe 803. The pneumatic box 801 is installed on one side of the upper end face of the base 1 and connected with an external air pump. The gas groove 802 is arranged in the inner wall of the lower part of the hot pressing shell 501 and communicates with the surface of the lower inner wall of the hot pressing shell 501 through an extension hole for adsorbing and positioning the copper foil or the laminated board. The port of the negative pressure pipe 803 is connected in the through hole on the forming pressing plate 505 for adsorbing and positioning the copper foil or the laminated board, and the other end of the negative pressure pipe 803 penetrates through the positioning plate 504 and the hot pressing shell 501 and is communicated with a connecting pipe 804, and the control ends of the connecting pipe 804 and the gas groove 802 are both connected with a duct group 805 for connecting with the pneumatic box 801.

[0068] After the copper foil and the laminated board are placed in the hot pressing shell 501, the external air pump can control the pneumatic box 801 to generate negative pressure, and then the gas holes of the gas groove 802 on the inner wall of the hot pressing shell 501 and the gas holes of the negative pressure pipe 803 on the forming pressing plate 505 can synchronously generate negative pressure, so that the copper foil and the laminated board are effectively adsorbed and positioned. When placing the copper foil and the laminated board, it is necessary to try to adhere to the inner wall of the hot pressing shell 501 and the forming pressing plate 505 to facilitate the adsorption and positioning of the negative pressure.

[0069] Through the pneumatic positioning assembly 8, the pre-positioning of the copper foil and the laminated board before filling the resin glue solution is realized, so that the glue solution can be accurately filled between the copper foil and the laminated board, and at the same time, the inclination of the copper foil and the laminated board in the hot pressing shell 501 is avoided, so that the uneven filling of the resin glue solution is avoided, and the forming quality of the copper foil laminated board is further improved.

[0070] The heating layer 9 is attached to the lower inner wall of the hot pressing shell 501 and the upper end face of the forming pressing plate 505, which can ensure the fluidity of the resin glue solution between the copper foil and the laminated board and prevent the glue solution from becoming sticky or solidifying in advance.

[0071] The upper piston rod 503 and the lower piston rod 508 are both connected with the upper hydraulic cylinder 502 and the lower hydraulic cylinder 507 through the Gleason seal ring for sliding sealing connection, and the Gleason seal ring can ensure the bidirectional sliding sealing performance of the upper piston rod 503 and the lower piston rod 508.

[0072] The sealing strip 10 is installed on the part where the sliding rubber plate 703 adheres to the hot pressing shell 501 and the forming pressing plate 505, which ensures the sealing performance of each contact surface of the sliding rubber plate 703.

[0073] The end parts of the sliding rubber plate 703 and the forming pressing plate 505 are both provided with matching inclined grooves, so that when the sliding rubber plate 703 slides, there is a certain gap with the edge of the hot pressing shell 501 for movement, but after the sliding rubber plate 703 adheres to the forming pressing plate 505, the forming pressing plate 505 will apply a pushing force to the sliding rubber plate 703 in the direction of the hot pressing shell 501, so as to ensure the sealing performance after the connection and avoid the overflow of the resin glue solution.

[0074] 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.

[0075] 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.

[0076] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other inventors can develop based on the same general inventive concepts embodied by the described embodiments. That is, although the present application is described in terms of particular embodiments and illustrative figures, it should be apparent that the scope of the present application is not limited to these specific embodiments.

[0077] While the embodiments of the application have been shown and described herein, it will be understood by those skilled in the art that many changes, modifications, substitutions and alterations to these embodiments can be made without departing from the principles and spirits of the application, and it is intended that the scope of the application be limited solely by the scope of the appended claims and the equivalents thereof.

Claims

1. A hot press forming equipment for laminated copper-clad, comprising a base (1), a supporting table (2) is symmetrically arranged on the base (1), characterized in that: One side of the support table (2) is provided with a vibration mechanism (3), the upper end of the vibration mechanism (3) is provided with a rotating part (4), one side of the rotating part (4) is provided with a hot pressing mechanism (5), the hot pressing mechanism (5) is flipped by 0-90 degrees as a whole through the rotating part (4), the inner side of the support table (2) is provided with an adjusting assembly (6) for adjusting the thickness of glue between the plywood and the copper foil, one side of the base (1) and the hot pressing mechanism (5) is also provided with a glue feeding assembly (7) for feeding glue; The hot pressing mechanism (5) comprises: A hot pressing shell (501), which is connected with the driving end of the rotating part (4) on the side away from the opening end, an upper hydraulic cylinder (502) is arranged in the mounting cavity on the shell of the hot pressing shell (501), one end of the upper hydraulic cylinder (502) located on the inner side of the hot pressing shell (501) is connected with an upper piston rod (503) in a sliding sealing manner, one end of the upper piston rod (503) is provided with a positioning plate (504), the four edges of the positioning plate (504) are connected with the inner wall of the hot pressing shell (501) in a sliding manner, one end of the positioning plate (504) away from the upper piston rod (503) is provided with a forming pressing plate (505) for pressing the copper foil, a plurality of reset springs (506) are arranged around the hot pressing shell (501) through the mounting grooves, the other end of the reset spring (506) is connected with the positioning plate (504) for resetting the forming pressing plate (505) after hot pressing; A lower hydraulic cylinder (507) is arranged in the cavity on the support table (2) and located at the upper end of the adjusting assembly (6), the upper end of the lower hydraulic cylinder (507) is connected with a lower piston rod (508) in a sliding sealing manner, and a high-pressure oil pipe (509) is connected between the oil storage ends of the lower hydraulic cylinder (507) and the upper hydraulic cylinder (502); A pneumatic positioning assembly (8) is arranged on both sides of the hot pressing shell (501) for hot pressing positioning of the plywood and the copper foil; the pneumatic positioning assembly (8) comprises: A pneumatic box (801) is arranged on one side of the upper end face of the base (1) and connected with an external air pump; An air groove (802) is arranged in the lower inner wall of the hot pressing shell (501) and communicates with the lower inner wall surface of the hot pressing shell (501) through the air holes for adsorbing and positioning the plywood or the copper foil; A negative pressure pipe (803) is arranged in the through hole on the forming pressing plate (505) for adsorbing and positioning the copper foil or the plywood, the other end of the negative pressure pipe (803) penetrates through the positioning plate (504) and the hot pressing shell (501) and is communicated with a connecting pipe (804), and the control ends of the connecting pipe (804) and the air groove (802) are connected with a conduit group (805) for connection with the pneumatic box (801).

2. The hot press forming apparatus for laminated copper-clad sheets according to claim 1, characterized by: The adjusting assembly (6) comprises: A lead screw (601) is vertically rotatably connected in a cavity inside the support table (2) and is a self-locking lead screw, which is arranged around the lower hydraulic cylinder (507) with the lower hydraulic cylinder (507) as the axis, and a lifting slider (602) is threadedly connected to the lead screw (601), one side of the lifting slider (602) is connected with the lower end face of the lower hydraulic cylinder (507) for adjusting the height of the lower hydraulic cylinder (507). A positioning shaft (603) is rotatably connected in the cavity inside the support table (2) at the lower end of the lower hydraulic cylinder (507), a spur gear set (604) is arranged at the lower end of the lead screw (601) and the upper end of the positioning shaft (603), and a bevel gear set (605) is arranged at the lower end of the positioning shaft (603).

3. The hot press forming apparatus for laminated copper-clad sheets according to claim 1, characterized by: The vibration mechanism (3) comprises: A vibration table (301) is slidably connected on one side of the support table (2) through a sliding bar, and the rotating part (4) is arranged at the upper end of the vibration table (301). Vibration columns (302) are symmetrically arranged on the upper end face of the base (1), the upper end of the vibration column (302) is fitted with 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, and sliding rods (303) are arranged on the upper end face of the base (1) on both sides of the vibration column (302) to improve the stability of the vibration table (301).

4. The hot press forming apparatus for laminated copper-clad sheets according to claim 3, characterized by: The glue feeding assembly (7) comprises: A glue storage tank (701) is arranged on the upper end face of the base (1), and liquid pumps (702) are symmetrically arranged on both sides of the glue storage tank (701). A sliding glue plate (703) is slidably connected in a sliding groove on one side of the opening end of the hot pressing shell (501) and matched with the end of the forming pressing plate (505), an L-shaped glue feeding groove (704) is longitudinally arranged in the sliding glue plate (703), the outlet end of the L-shaped glue feeding groove (704) faces the hot pressing shell (501), and a spring guide pipe (705) is connected between the inlet end of the L-shaped glue feeding groove (704) and the outlet end of the liquid pump (702). A magnetic attraction piece (706) is arranged on one side adjacent to the sliding glue plate (703) and the forming pressing plate (505) to ensure the sealing property during glue injection.

5. The hot press forming apparatus for laminated copper-clad sheets according to claim 1, characterized by: A heating layer (9) is arranged on the lower inner wall of the hot pressing shell (501) and the upper end face of the forming pressing plate (505).

6. The hot press forming apparatus for laminated copper-clad sheets according to claim 1, characterized by: The upper piston rod (503) and the lower piston rod (508) are slidably and sealingly connected with the upper hydraulic cylinder (502) and the lower hydraulic cylinder (507) through the GLEAM sealing ring.

7. The hot press forming apparatus for laminated copper-clad sheets according to claim 4, characterized by: Sealing strips (10) are arranged on the parts where the sliding glue plate (703) is fitted with the hot pressing shell (501) and the forming pressing plate (505).

8. The hot press forming apparatus for laminated copper-clad sheets according to claim 7, characterized by: The end of the sliding rubber plate (703) and the end of the forming press plate (505) are provided with matching inclined grooves.

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