An effective device to improve copper wrinkles in copper clad laminates

Abstract

The invention discloses an effective device for improving copper wrinkles of copper clad laminates, comprising a copper clad laminate, a hydraulic rod, a top plate and a base, wherein the copper clad laminate is composed of three parts: a substrate, an adhesive layer and a copper foil, and the hydraulic rod is fixedly installed at the center position of the top plate. The improved copper clad laminate hot pressing device, when hot pressing the copper clad laminate, sequentially presses from the center position of the copper clad laminate to the surroundings through a pressing component, thereby squeezing out excess adhesive in the copper clad laminate as much as possible, and after the hot pressing treatment of the copper clad laminate is completed, the copper clad laminate is cooled in the extruded state, and the adhesive condensed on the outer peripheral wall of the copper clad laminate is scraped off during the contact and extrusion of the copper clad laminate, and then the scraped adhesive doping and adhesive residue dropped on the base are cleaned by the airflow used when cooling the copper clad laminate, which can well meet the production needs of the copper clad laminate.

Description

Technical Field

[0001] The invention relates to the technical field of copper clad laminate processing equipment, in particular to an equipment for effectively improving copper wrinkles in copper clad laminates. Background Art

[0002] Copper clad laminate is a plate-like material made by impregnating electronic glass fiber cloth or other reinforcing materials with resin, covering one or both sides with copper foil and hot pressing. It is referred to as copper clad laminate. Printed circuit boards of various forms and functions are made by selectively processing, etching, drilling and copper plating on copper clad laminates to make different printed circuits. It mainly plays the role of interconnection, insulation and support for printed circuit boards, and has a great influence on the transmission speed, energy loss and characteristic impedance of signals in the circuit. Therefore, the performance, quality, processability in manufacturing, manufacturing level, manufacturing cost, and long-term reliability and stability of printed circuit boards depend to a large extent on copper clad laminates.

[0003] In the production process of single-layer copper clad laminates, the substrate, adhesive layer and copper foil are combined together, and then the substrate and the copper foil are connected and fixed by hot pressing equipment. One type of hot pressing equipment uses two pressing plates to press the copper clad laminate at various places at the same time to complete the hot pressing treatment of the copper clad laminate. Due to the uneven distribution of some adhesives in the adhesive layer, it is very easy to cause copper wrinkles in the copper foil. Even if the adhesive in the adhesive layer is completely discharged, the traditional hot pressing equipment generally removes the copper clad laminate from the hot pressing equipment for cooling after the hot pressing of the copper clad laminate is completed. After the copper clad laminate loses the extrusion of the pressing plate, the outer edge of the copper foil and the outer side of the substrate are The spacing between the two parts may increase due to warping, causing part of the discharged adhesive to be re-absorbed into the adhesive layer, which in turn causes copper wrinkles on the outside of the copper clad laminate. Even if the copper clad laminate is cooled in an extruded state, the adhesive that flows out of the adhesive layer will also solidify on the outside of the copper clad laminate at the same time. Part of the solidified adhesive may fall off from the outer peripheral side of the copper clad laminate and remain on the lower pressing plate. Due to the influence of the residual adhesive, the copper clad laminate at this location will be subjected to a higher pressure than other parts of the copper clad laminate. When the copper clad laminate is hot-pressed again, it is very easy to cause copper wrinkles on the copper clad laminate at this location, which cannot meet the production needs of the copper clad laminate well. Summary of the invention

[0004] The object of the present invention is to provide a device for effectively improving copper wrinkles of copper clad laminates to solve the problems raised by the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: an effective device for improving copper wrinkles of copper clad laminates, comprising a copper clad laminate, a hydraulic rod, a top plate and a base, wherein the copper clad laminate is composed of three parts: a substrate, an adhesive layer and a copper foil, the hydraulic rod is fixedly mounted at the center position of the top of the top plate, and the copper clad laminate is placed at the middle position of the top of the base;

[0006] Also includes:

[0007] A pressing assembly, the pressing assembly is located directly below the top plate, and a trimming assembly is installed at the top of the base corresponding to the position of the top plate;

[0008] The air guide assembly comprises two parts, a heat insulating plate and a heat conducting plate. The heat conducting plate is arranged at the center of the top of the heat insulating plate, and the top side of the heat conducting plate is in the same plane as the top side of the heat insulating plate. The air guide assembly is installed between the heat conducting plate and the heat insulating plate, and adjustment parts are installed at the opposite ends between the top plate and the base.

[0009] Preferably, the pressing assembly includes an elastic plate, which is located below the top plate. A plurality of T-shaped limit rods are relatively slidably penetrated in the top plate, and the bottom end of each limit rod is fixedly connected to the elastic plate. A liquid bag is fixedly installed at the center position of the bottom end of the top plate.

[0010] By adopting the above technical solution, the moving trajectory between the elastic plate and the top plate is constrained and limited by the limiting rod, and the top plate and the elastic plate are connected into a whole, which facilitates the hydraulic rod to adjust the position of the top plate and the elastic plate.

[0011] Preferably, a restraining ring is provided on the outer peripheral side of the liquid sac, and the restraining ring is fixedly connected to the top plate.

[0012] By adopting the above technical solution, the deformation of the liquid capsule is constrained and limited by the constraint ring, and the liquid capsule is made to fill the interior of the constraint ring after shrinking and deforming, which facilitates the shaping and shrinking of the liquid capsule.

[0013] Preferably, the air guide assembly includes a plurality of support rods, a rectangular groove is provided between the bottom end of the heat conducting plate and the heat insulating plate, the plurality of support rods are fixedly mounted on the bottom end of the heat conducting plate, and the bottom end of each support rod is fixedly connected to the inner wall of the rectangular groove.

[0014] By adopting the above technical solution, the heat conducting plate is supported and limited by the support rods without affecting the gas flow in the rectangular groove, so that the connection between the heat conducting plate and the heat insulating plate is more stable. At the same time, the heat loss of the high-temperature gas in the rectangular groove is isolated by the heat insulating plate, so that the heat of the flowing gas in the rectangular groove can be transferred into the heat conducting plate as much as possible.

[0015] Preferably, a plurality of square tubes are relatively fixedly provided at the positions corresponding to the rectangular grooves at both ends of the insulation board, and the interior of each square tube is communicated with the interior of the rectangular groove, and two diverter valves are relatively provided on the outer peripheral side of the base, and each diverter valve is connected and installed with the corresponding square tube.

[0016] By adopting the above technical solution, the hot air flow injected into the rectangular groove can be injected into the rectangular groove from multiple locations simultaneously through the cooperation between the diverter valve and a plurality of square tubes, which facilitates the heat in the air flow to be transferred to the heat conduction plate from multiple locations.

[0017] Preferably, the adjusting member comprises a plurality of first square rods and a plurality of second square rods, a plurality of square holes with T-shaped cross sections are relatively opened at positions in the middle of the plurality of square tubes on the top side of the heat insulation board, the plurality of first square rods and the plurality of second square rods are relatively slidably penetrated into the plurality of square holes, and each first square rod and each second square rod respectively penetrates the corresponding square tube and is slidably connected to the tube wall of the corresponding square tube, two sealing rings are respectively sleeved on the outer peripheral side of the first square rod and the outer peripheral side of the second square rod, and the two sealing rings are relatively arranged on both sides of the corresponding square tube, a second spring is respectively provided on the outer peripheral side of the first square rod and the outer peripheral side of the second square rod, two ends of the second spring located on the outer peripheral side of the first square rod are respectively fixedly connected to the base and the corresponding first square rod, and two ends of the second spring located on the outer peripheral side of the second square rod are respectively fixedly connected to the base and the corresponding second square rod.

[0018] By adopting the above technical solution, the gap between the square rod and the square hole is blocked by two sealing rings from both sides of the square tube, so that the gas flowing in the square tube will not flow into the square hole to affect the movement of the first square rod and the second square rod.

[0019] Preferably, three first air guide holes are sequentially opened in the first square rod from top to bottom, and two second air guide holes are opened in the second square rod at positions corresponding to the three first air guide holes.

[0020] By adopting the above technical solution, the first square rod and the second square rod cooperate with the first air guide hole and the second air guide hole to respectively control the flow state of the square tubes on both sides, which facilitates the air paths between the square tubes on both sides to be in different connection states when the top plate and the base are in different states.

[0021] Preferably, the trimming assembly includes a cutter in the shape of a ring, an annular hole with a cross-shaped cross-section is opened between the outer peripheral wall of the heat conduction plate and the heat insulation plate, the interior of the annular hole is communicated with the interior of the rectangular groove, the cutter is slidably inserted into the annular hole, and the part of the cutter outside the annular hole is in contact with the copper clad plate, a plurality of first springs are provided between the cutter and the inner wall of the rectangular groove, and the two ends of each first spring are respectively fixedly connected to the cutter and the inner wall of the rectangular groove, sealing rings are installed on the inner annular wall and the outer annular wall of the cutter, and an exhaust unit is provided in the cutter.

[0022] By adopting the above technical solution, the position of the copper clad laminate on the base is constrained by the cutter through the copper foil, and the cutter is pulled to reset by the first spring, which facilitates repeated processing of the copper clad laminate.

[0023] Preferably, a guide ring is fixedly mounted on the bottom side of the elastic plate at a position corresponding to the cutter, the bottom side of the guide ring is inclined toward the inside of the guide ring, and the top side of the cutter is inclined toward the outside of the cutter.

[0024] By adopting the above technical solution, when the guide ring contacts the copper clad laminate substrate, the position of the copper clad laminate substrate is corrected by the inclined surface of the guide tube, thereby facilitating the placement of the copper clad laminate.

[0025] Preferably, the exhaust unit includes a plurality of pressure-limiting valves, a buffer groove in the shape of a ring is opened at the middle position of the cutter, a plurality of the pressure-limiting valves are fixedly penetrated through the bottom of the cutter, and the interior of the buffer groove is connected with the interior of the rectangular groove through a plurality of pressure-limiting valves, a plurality of exhaust holes are opened on the outer ring wall of the cutter and on the inclined surface of the cutter, and the interior of each exhaust hole is connected with the interior of the buffer groove.

[0026] By adopting the above technical solution, the gas in the rectangular groove first pushes the cutter to move upward through the constraint of the pressure limiting valve, and only flows into the buffer groove when the pressure in the rectangular groove reaches the threshold, and then the gas flow is discharged to the surroundings of the copper clad laminate by several cutters.

[0027] Compared with the prior art, the invention has the following beneficial effects: the improved copper clad laminate hot pressing equipment, when hot pressing the copper clad laminate, sequentially presses from the center of the copper clad laminate to the surroundings through the pressing assembly, thereby squeezing out excess adhesive in the copper clad laminate as much as possible, and after the hot pressing of the copper clad laminate is completed, the copper clad laminate is cooled in the extruded state, and the adhesive condensed on the outer peripheral wall of the copper clad laminate is scraped off during the contact and extrusion of the copper clad laminate, and then the scraped adhesive impurities and adhesive residues dropped on the base are cleaned by the airflow used when cooling the copper clad laminate, which can well meet the production needs of the copper clad laminate, and the specific contents are as follows;

[0028] 1. A base and a top plate are provided. When the copper clad laminate is hot pressed, as the distance between the top plate and the base is reduced, when the pressing component first contacts the copper-plated plate, the adjusting part controls the gas path of the gas guide component to be connected, and the high-temperature gas flowing in the base heats the copper clad laminate to soften the adhesive in the adhesive layer of the copper clad laminate. Then, the distance between the top plate and the base is further reduced, and the pressing component is pressed from the center of the copper clad laminate to the outside of the copper clad laminate in turn, thereby squeezing out the excess adhesive in the adhesive layer of the copper clad laminate. When the adhesive in the copper clad laminate is squeezed out, the adjusting part controls the The air guide assembly is reconnected, and the low-temperature air flowing in the base cools the copper clad laminate when it is squeezed, and solidifies the adhesive on the outer peripheral side of the copper clad laminate. Then the distance between the top plate and the base begins to recover. When the distance between the top plate and the base is restored to half, the adjustment part controls the one-way connection of the air path of the air guide assembly, and the low-temperature air in the base controls the trimming device to scrape off the solidified adhesive on the outer peripheral side of the copper clad laminate, and after the scraping is completed, the exhaust unit is started to clean the residual adhesive residue on the base, which can well meet the production needs of the copper clad laminate. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is an overall schematic diagram of the present invention;

[0030] Figure 2 It is a schematic diagram of the internal structure of the top plate of the present invention;

[0031] Figure 3 It is a schematic diagram of the internal structure of the base of the present invention;

[0032] Figure 4 For the present invention Figure 3 A schematic diagram of the enlarged structure at A in the middle;

[0033] Figure 5 For the present invention Figure 3 A schematic diagram of the enlarged structure at B in the middle;

[0034] Figure 6 For the present invention Figure 3 Schematic diagram of the enlarged structure at C in the middle;

[0035] Figure 7 For the present invention Figure 6 Schematic diagram of the enlarged structure at D in the middle.

[0036] In the figure: 1. copper clad plate; 2. hydraulic rod; 3. pressing assembly; 31. elastic plate; 32. limiting rod; 33. liquid bag; 34. restraining ring; 4. air guide assembly; 41. rectangular groove; 42. supporting rod; 43. square tube; 44. diverter valve; 5. adjusting member; 51. square hole; 52. first square rod; 53. second square rod; 54. sealing ring; 55. first air guide hole; 56. second air guide hole; 57. second spring; 6. trimming assembly; 61. annular hole; 62. cutter; 63. guide ring; 64. first spring; 65. sealing ring; 7. exhaust unit; 71. buffer groove; 72. pressure limiting valve; 73. exhaust hole; 8. top plate; 9. base; 91. heat insulation plate; 92. heat conduction plate. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] See also Figure 1-3The present invention provides a technical solution: an effective device for improving copper wrinkles of copper clad laminate 1, comprising copper clad laminate 1, hydraulic rod 2, top plate 8 and base 9, copper clad laminate 1 is composed of three parts: substrate, adhesive layer and copper foil, hydraulic rod 2 is fixedly installed at the center position of the top of top plate 8, copper clad laminate 1 is placed at the center position of the top of base 9 when hot pressing copper clad laminate 1, base 9 is fixedly installed on the installation operation surface of vacuum operating table processing chamber by bolts, and hydraulic rod 2 is fixedly installed on the mounting frame of vibration operating table processing chamber by bolts; also comprising: pressing component 3 and air guide component 4, base 9 includes two parts: heat insulation plate 91 and heat conduction plate 92, heat conduction plate 92 is penetrated at the center position of the top of heat insulation plate 91, and the top side of heat conduction plate 92 is in the same plane as the top side of heat insulation plate 91. Pressing component 3 is located directly below top plate 8. The pressing assembly 3 includes an elastic plate 31, which is located below the top plate 8. A plurality of limiting rods 32 in a T-shaped arrangement are relatively slidably penetrated in the top plate 8, and the bottom end of each limiting rod 32 is fixedly connected to the elastic plate 31. A liquid capsule 33 is fixedly installed at the center position of the bottom end of the top plate 8, and the center position of the bottom end of the liquid capsule 33 is fixedly connected to the center position of the elastic plate 31. The liquid capsule 33 fills the space in the constraint ring 34 after being compressed. A constraint ring 34 is provided on the outer peripheral side of the liquid capsule 33, and the constraint ring 34 is fixedly connected to the top plate 8. The inner wall of the bottom opening of the constraint ring 34 is set in an arc shape. The moving trajectory between the elastic plate 31 and the top plate 8 is constrained and limited by the limiting rod 32, and the top plate 8 and the elastic plate 31 are connected as a whole. The deformation of the liquid capsule 33 is constrained and limited by the constraint ring 34, and the liquid capsule 33 is made to fill the interior of the constraint ring 34 after shrinking and deforming.

[0039] according to Figure 3-5As shown, the air guide component 4 is installed between the heat conducting plate 92 and the heat insulating plate 91. The air guide component 4 includes a plurality of support rods 42, a rectangular groove 41 is opened between the bottom end of the heat conducting plate 92 and the heat insulating plate 91, a plurality of support rods 42 are fixedly installed at the bottom end of the heat conducting plate 92, and the bottom end of each support rod 42 is fixedly connected to the inner wall of the rectangular groove 41, and a plurality of support rods 42 are equidistantly arranged in the rectangular groove 41, and a plurality of square tubes 43 are relatively fixedly penetrated at the positions corresponding to the rectangular grooves 41 at both ends of the heat insulating plate 91, and the interior of each square tube 43 is communicated with the interior of the rectangular groove 41, and two diverter valves 44 are relatively arranged on the outer peripheral side of the base 9, and the rectangular tubes and the opposite The connecting port of the diverter valve 44 is threadedly connected, and the interior of the rectangular tube is connected to the interior of the diverter valve 44. The two air inlets of the diverter valve 44 located at the first square rod 52 are connected to two high-pressure gas injection devices in the outside through connecting pipes, one of which injects high-temperature gas into the rectangular groove 41, and the other high-pressure gas injection device injects low-temperature gas into the rectangular groove 41. The exhaust port of the other diverter valve 44 is connected to an external gas circulation device through a pipeline. The gas circulation device processes the gas and introduces the gas into the corresponding high-pressure gas injection device for gas recycling. Through the mutual cooperation between the diverter valve 44 and the plurality of square tubes 43, the hot air flow injected into the rectangular groove 41 is injected into the rectangular groove 41 from multiple places at the same time. The heat conducting plate 92 is supported and limited by the support rod 42 without affecting the gas flow in the rectangular groove 41, and the heat loss of the high-temperature gas in the rectangular groove 41 to the outside is slowed down by the insulation plate 91.

[0040] according to Figure 1 , Figure 3 , Figure 4 and Figure 5As shown, the top plate 8 and the base 9 are provided with adjusting members 5 at opposite ends. The adjusting members 5 include a plurality of first square rods 52 and a plurality of second square rods 53. A plurality of square holes 51 with T-shaped cross sections are provided at the top side of the heat insulation plate 91 at positions corresponding to the middle of the plurality of square tubes 43. The plurality of first square rods 52 and the plurality of second square rods 53 are relatively slidably penetrated in the plurality of square holes 51. Each of the first square rods 52 and each of the second square rods 53 penetrates the corresponding square tube 43 and is slidably connected to the tube wall of the corresponding square tube 43. The side length of the first square rod 52 and the side length of the second square rod 53 are greater than the side length of the inner wall of the corresponding square tube 43. Two sealing rings 54 are sleeved on the outer circumference of the first square rod 52 and the outer circumference of the second square rod 53, and the two sealing rings 54 are mutually connected. On both sides of the corresponding square tube 43, the outer circumference of the first square rod 52 and the outer circumference of the second square rod 53 are both provided with a second spring 57, the two ends of the second spring 57 on the outer circumference of the first square rod 52 are respectively fixedly connected to the base 9 and the corresponding first square rod 52, and the two ends of the second spring 57 on the outer circumference of the second square rod 53 are respectively fixedly connected to the base 9 and the corresponding second square rod 53. Three first air guide holes 55 are sequentially opened in the first square rod 52 from top to bottom, and two second air guide holes 56 are relatively opened at the positions of the second square rod 53 corresponding to the three first air guide holes 55. The two second air guide holes 56 correspond to the upper first air guide hole 55 and the lower guide hole. The gas flowing in the square tube 43 will not flow into the square hole 51 through the blocking of the two sealing rings 65, and the flow state of the square tubes 43 on both sides is respectively controlled by the first square rod 52 and the second square rod 53 cooperating with the first air guide hole 55 and the second air guide hole 56.

[0041] according to Figure 1 , Figure 2 , Figure 3 and Figure 6As shown, a trimming assembly 6 is installed at the top of the base 9 at a position corresponding to the top plate 8 . The trimming assembly 6 includes a cutter 62 in an annular shape, an annular hole 61 with a cross-shaped cross-section is opened between the outer peripheral wall of the heat conducting plate 92 and the heat insulating plate 91, the annular hole 61 is in the shape of a square ring, the interior of the annular hole 61 is communicated with the interior of the rectangular groove 41, the cutter 62 is slidably penetrated in the annular hole 61, and the part of the cutter 62 located outside the annular hole 61 is in contact with the copper clad plate 1, a plurality of first springs 64 are provided between the cutter 62 and the inner wall of the rectangular groove 41, and the two ends of each first spring 64 are respectively fixedly connected to the cutter 62 and the inner wall of the rectangular groove 41, a sealing ring 65 for blocking the gap between the cutter 62 and the inner wall of the annular groove is installed on the inner ring wall of the cutter 62 and the outer ring wall of the cutter 62, a guide ring 63 is fixedly installed at the bottom side of the elastic plate 31 at the position corresponding to the cutter 62, the bottom side of the guide ring 63 is inclined to the inside of the guide ring 63, and the top side of the cutter 62 is inclined to the outside of the cutter 62. The position of the copper clad laminate 1 on the base 9 is constrained by the copper foil through the cutter 62, and the cutter 62 is pulled back to its original position by the first spring 64. When the guide ring 63 contacts the substrate of the copper clad laminate 1, the position of the substrate of the copper clad laminate 1 is corrected through the inclined surface of the guide tube.

[0042] according to Figure 6-7 As shown, the cutter 62 is provided with an exhaust unit 7. The exhaust unit 7 includes a plurality of pressure limiting valves 72, a buffer groove 71 in the shape of an annular arrangement is provided at the middle position of the cutter 62, a plurality of pressure limiting valves 72 are fixedly penetrated at the bottom of the cutter 62, and the interior of the buffer groove 71 is connected with the interior of the rectangular groove 41 through a plurality of pressure limiting valves 72, a plurality of exhaust holes 73 are provided on the outer ring wall of the cutter 62 and on the inclined surface of the cutter 62, and the interior of each exhaust hole 73 is connected with the interior of the buffer groove 71. The gas in the rectangular groove 41 is first pushed upward by the constraint of the pressure limiting valve 72, and will flow into the buffer groove 71 only when the pressure in the rectangular groove 41 reaches a threshold value, and then the gas flow is discharged to the surroundings of the copper clad laminate 1 by the plurality of cutters 62.

[0043] Working principle: When performing the hot pressing operation on the copper clad laminate 1, the copper clad laminate 1 is placed in the cutter 62 on the base 9, and the copper clad laminate 1 is constrained at the middle position of the heat conducting plate 92 by the cutter 62 from all sides of the copper clad laminate 1. Then, the hydraulic rod 2 is extended and retracted to drive the top plate 8 to move downward, and when the first square rod 52 and the second square rod 53 are in contact with the top plate 8, the first square rod 52 and the second square rod 53 are pushed to slide downward along the square hole 51. As the top plate 8 moves downward, the hydraulic rod 2 stops stretching when the elastic plate 31 is in contact with the copper clad laminate 1. In the process of the elastic plate 31 contacting the copper clad laminate 1, as the copper clad laminate 1 substrate contacts the inclined surface of the guide ring 63, the limit ring squeezes and pushes the copper clad laminate 1 substrate to move, and the position of the copper clad laminate 1 substrate is corrected. When the elastic plate 31 is in contact with the copper clad laminate 1, the first air guide hole 55 and The second air guide hole 56 moves to the middle of the square tube 43, the cut-off state of several square tubes 43 is released, the gas path between the diverter valves 44 on both sides is connected, and the outer high-pressure gas injection device injects high-temperature gas into several square tubes 43 on one side from the diverter valve 44 on one side. The high-temperature gas flows into the rectangular groove 41 from the square tube 43 on one side and fills the rectangular groove 41, and then flows into another diverter valve 44 from the square tube 43 on the other side and flows into the gas circulation device from the diverter valve 44 on the other side and flows into the above-mentioned high-pressure gas injection device to reheat the gas and recycle the discharged high-temperature gas, thereby forming a stable high-temperature gas circulation. When the high-temperature gas contacts the heat conducting plate 92, the heat conducting plate 92 conducts heat to the copper clad laminate 1 to heat the copper clad laminate 1, and softens the adhesive in the adhesive layer to present a solidified state;

[0044] After the high-temperature gas flows in the rectangular groove 41 for a set time, the heating of the copper-clad laminate 1 is completed, the high-pressure gas injection device stops injecting the high-temperature gas, and the hydraulic rod 2 is started at the same time to continue to push the top plate 8 to move downward. At this time, the elastic plate 31 and the copper-clad laminate 1 conflict with each other and cannot move, so that the top plate 8 slides vertically downward along the limit rod 32, and the distance between the top plate 8 and the elastic plate 31 is reduced. The liquid capsule 33 is squeezed by the top plate 8 and the elastic plate 31 and shrinks and deforms, and then presses from the center position of the elastic plate 31 to the surrounding areas in sequence, pushing the excess adhesive in the adhesive layer of the copper-clad laminate 1 to flow from the center position to the surrounding positions, and the surrounding elastic plates are Since there is no liquid capsule 33 squeezing the elastic plate 31, the pressure of the outside of the elastic plate 31 on the copper-clad plate 1 is small, and the squeezing force of the outside of the copper-clad plate 1 substrate and the outside of the copper foil of the copper-clad plate 1 on the adhesive layer is small, and the adhesive can easily flow out from the adhesive layer. As the distance between the top plate 8 and the elastic plate 31 continues to decrease, when the constraint ring 34 contacts the elastic plate 31, the liquid capsule 33 shrinks and deforms to fill the internal space of the constraint ring 34. The constraint ring 34 and the liquid capsule 33 are combined into a complete plate. The elastic plate 31 is pressed from various places above the copper-clad plate 1 at the same time. At this time, the excess adhesive in the copper-clad plate 1 is completely discharged, and the hydraulic rod 2 stops running at the same time;

[0045] At the same time, the upper first air guide hole 55 and the upper second air guide hole 56 are located in the corresponding square tube 43, and low-temperature gas is injected into the rectangular groove 41 according to the above-mentioned other high-pressure gas injection device to form a stable gas circulation. When the low-temperature gas in the rectangular groove 41 contacts the heat conducting plate 92, the heat in the heat conducting plate 92 is taken away, and the heat on the copper clad laminate 1 is continuously absorbed through the heat conducting plate 92 with a lower temperature, so that the copper clad laminate 1 is continuously cooled, and the adhesive in the adhesive layer of the copper clad laminate 1 and the adhesive on the outer edge of the copper clad laminate 1 are solidified;

[0046] After the flow of low-temperature gas in the rectangular groove 41 reaches the set time, the hydraulic rod 2 starts to contract, pulling the top plate 8 to move upward, and stops the operation of the hydraulic rod 2 when the first air guide hole 55 in the middle position is located inside the corresponding square tube 43. At this time, the second square rod 53 cuts off the square tube 43 on the other side. At this time, the low-temperature gas injected by another high-pressure gas injection device will increase the air pressure in the rectangular groove 41. As the air pressure in the rectangular groove 41 increases, the gas in the rectangular groove 41 flows into the annular hole 61 and pushes out the cutter 62 located in the annular hole 61. As the cutter 62 rises until the cutter 62 contacts the guide ring 63, the solidified adhesive on the outer peripheral side of the copper clad laminate 1 will be scraped off during the rise of the cutter 62, and the partially solidified adhesive block may also crack due to the extrusion between the cutter 62 and the solidified adhesive.

[0047] It should be noted that, at this time, due to the pressing of the elastic plate 31 on the copper-clad laminate 1, the conflict between the cutter 62 and the adhesive residue on the outer peripheral wall of the copper-clad laminate 1 will not affect the copper-clad laminate 1;

[0048] Subsequently, due to the engagement between the cutter 62 and the inner wall of the annular hole 61, the gas in the rectangular groove 41 cannot continue to push the airway upward, and the air pressure in the rectangular groove 41 continues to increase. When the difference between the air pressure in the rectangular groove 41 and the external air pressure reaches a threshold, the excess gas in the rectangular groove 41 flows into the buffer groove 71 and is discharged to the outer peripheral side of the copper clad laminate 1 through a plurality of exhaust holes 73. The adhesive residue attached to the outer peripheral side of the cutter 62 and the adhesive residue dropped on the base 9 are driven to move to the outside of the base 9 by the airflow, and the adhesive residue on the top side of the base 9 is removed. After the set time is reached, another high-pressure gas injection device stops injecting low-temperature gas in the rectangular groove 41.

[0049] It should be noted that due to the constraint of the inclined surface of the guide ring 63, the airflow discharged from the top side of the cutter 62 will also be discharged to the outside of the copper clad laminate 1, so that the flowing airflow drives the adhesive residue on the top side of the cutter 62 to move and be discharged to the outside of the copper clad laminate 1;

[0050] Then the hydraulic rod 2 continues to contract. Due to the recovery of the deformation of the liquid capsule 33, the contraction of the hydraulic rod 2 will first drive the top plate 8 to move upward along the limit rod 32, and due to the push of the liquid capsule 33, the elastic plate 31 will not be separated from the copper-clad plate 1 until the distance between the elastic plate 31 and the top plate 8 is restored. At this time, the hydraulic rod 2 stops running for a period of time. At the same time, when the top plate 8 moves upward, the pushing state of the top plate 8 on the first square rod 52 and the second baffle is released, and the pushing state of the second spring 57 is released. The second spring 57 pushes the first square rod 52 and the second square rod 53 to move upward and reset. After the distance between the elastic plate 31 and the top plate 8 is restored, the cutter 62 in the square tube 43 corresponding to the first air guide hole 55 and the second air guide hole 56 below is retracted into the annular hole 61 due to the pulling of the first spring 64 and resets the cutter 62, and the excess gas in the rectangular groove 41 is discharged to the gas circulation device from the diverter valve 44 on the other side according to the above.

[0051] Then the hydraulic rod 2 continues to contract. Due to the interference between the limit rod 32 and the baffle, the contraction of the hydraulic rod 2 will drive the elastic plate 31 to move and separate the elastic plate 31 from the copper clad laminate 1. At this time, the copper clad laminate 1 can be removed from the base 9, and the various components in the device are restored to their original state, and a new copper clad laminate 1 that needs hot pressing is put back in. According to the above, the hot pressing treatment of the copper clad laminate 1 can be continuously carried out.

[0052] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0053] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for effectively improving copper wrinkles of a copper-clad laminate, comprising a copper-clad laminate (1), a hydraulic rod (2), a top plate (8) and a base (9), wherein the copper-clad laminate (1) is composed of three parts: a base plate, an adhesive layer and a copper foil, the hydraulic rod (2) is fixedly mounted at the center position of the top of the top plate (8), and the copper-clad laminate (1) is placed at the middle position of the top of the base (9); It is characterized in that Also includes: A pressing assembly (3), wherein the pressing assembly (3) is located directly below the top plate (8), and a trimming assembly (6) is installed at a position of the top end of the base (9) corresponding to the top plate (8); An air guide component (4), the base (9) comprising two parts, a heat insulating plate (91) and a heat conducting plate (92), the heat conducting plate (92) being arranged at the center of the top of the heat insulating plate (91), and the top side of the heat conducting plate (92) and the top side of the heat insulating plate (91) being in the same plane, the air guide component (4) being installed between the heat conducting plate (92) and the heat insulating plate (91), and an adjusting member (5) being installed at opposite ends between the top plate (8) and the base (9); The pressing assembly (3) comprises an elastic plate (31); The adjusting member (5) comprises a plurality of first square rods (52) and a plurality of second square rods (53); The first square rod (52) is provided with three first air guide holes (55) in sequence from top to bottom, and the second square rod (53) is provided with two second air guide holes (56) at positions corresponding to the three first air guide holes (55); The trimming assembly (6) comprises a cutter (62) arranged in an annular shape, an annular hole (61) having a cross-shaped cross section is provided between the outer peripheral wall of the heat conducting plate (92) and the heat insulating plate (91), the interior of the annular hole (61) is communicated with the interior of the rectangular groove (41), the cutter (62) is slidably inserted into the annular hole (61), and the portion of the cutter (62) located outside the annular hole (61) is in contact with the copper-clad plate (1), a plurality of first springs (64) are provided between the cutter (62) and the inner wall of the rectangular groove (41), and the two ends of each first spring (64) are respectively fixedly connected to the cutter (62) and the inner wall of the rectangular groove (41), a sealing ring (65) is provided on the inner annular wall of the cutter (62) and the outer annular wall of the cutter (62), and an exhaust unit (7) is provided in the cutter (62); A guide ring (63) is fixedly mounted on the bottom side of the elastic plate (31) at a position corresponding to the cutter (62); the bottom side of the guide ring (63) is inclined toward the inside of the guide ring (63), and the top side of the cutter (62) is inclined toward the outside of the cutter (62).

2. The device for effectively improving copper wrinkles of copper clad laminate according to claim 1, characterized in that: The elastic plate (31) is located below the top plate (8), and a plurality of T-shaped limiting rods (32) are relatively slidably penetrated in the top plate (8), and the bottom end of each limiting rod (32) is fixedly connected to the elastic plate (31), and a liquid capsule (33) is fixedly installed at the center position of the bottom end of the top plate (8).

3. The device for effectively improving copper wrinkles of copper clad laminate according to claim 2, characterized in that: A restraining ring (34) is provided on the outer peripheral side of the liquid capsule (33), and the restraining ring (34) is fixedly connected to the top plate (8).

4. The device for effectively improving copper wrinkles of copper clad laminate according to claim 1, characterized in that: The air guide assembly (4) comprises a plurality of support rods (42); a rectangular groove (41) is provided between the bottom end of the heat conducting plate (92) and the heat insulating plate (91); the plurality of support rods (42) are fixedly mounted on the bottom end of the heat conducting plate (92); and the bottom end of each support rod (42) is fixedly connected to the inner wall of the rectangular groove (41).

5. The device for effectively improving copper wrinkles of copper clad laminate according to claim 4, characterized in that: A plurality of square tubes (43) are relatively fixedly provided at positions corresponding to the rectangular grooves (41) at both ends of the heat insulation plate (91), and the interior of each square tube (43) is communicated with the interior of the rectangular groove (41). Two diverter valves (44) are relatively provided on the outer peripheral side of the base (9), and each diverter valve (44) is connected and installed with the corresponding square tube (43).

6. The device for effectively improving copper wrinkles of copper clad laminate according to claim 5, characterized in that: A plurality of square holes (51) with T-shaped cross sections are relatively opened at positions corresponding to the middle of the plurality of square tubes (43) on the top side of the heat insulation board (91); a plurality of the first square rods (52) and a plurality of the second square rods (53) are relatively slidably inserted into the plurality of square holes (51); each of the first square rods (52) and each of the second square rods (53) respectively penetrates the corresponding square tube (43) and is slidably connected to the tube wall of the corresponding square tube (43); the outer peripheral sides of the first square rods (52) and the outer peripheral sides of the second square rods (53) are sleeved with two A sealing ring (54) is provided, and the two sealing rings (54) are arranged on both sides of the corresponding square tube (43) opposite to each other. A second spring (57) is provided on the outer peripheral side of the first square rod (52) and the outer peripheral side of the second square rod (53). The two ends of the second spring (57) located on the outer peripheral side of the first square rod (52) are respectively fixedly connected to the base (9) and the corresponding first square rod (52). The two ends of the second spring (57) located on the outer peripheral side of the second square rod (53) are respectively fixedly connected to the base (9) and the corresponding second square rod (53).

7. The device for effectively improving copper wrinkles of copper clad laminate according to claim 6, characterized in that: The exhaust unit (7) comprises a plurality of pressure-limiting valves (72); a buffer groove (71) in the shape of an annular ring is provided at a middle position inside the cutter (62); the plurality of pressure-limiting valves (72) are fixedly arranged through the bottom of the cutter (62); the interior of the buffer groove (71) is connected to the interior of the rectangular groove (41) via the plurality of pressure-limiting valves (72); a plurality of exhaust holes (73) are provided on the outer ring wall of the cutter (62) and on the inclined surface of the cutter (62); and the interior of each exhaust hole (73) is connected to the interior of the buffer groove (71).

Images