A prepreg production device for copper-clad plates
By using laser cutting equipment to precisely cut the prepreg, the problem of resin chipping caused by mechanical cutting was solved, ensuring the insulation performance of the copper clad laminate.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- GUANGDONG YINGHUA ELECTRONIC MATERIALS CO LTD
- Filing Date
- 2026-03-16
- Publication Date
- 2026-06-26
AI Technical Summary
In existing technologies, prepregs are prone to resin chipping at the cut edges during mechanical cutting, leading to dust pollution and reduced insulation performance.
Laser cutting equipment is used to precisely cut the prepreg by adjusting the position of the laser head through longitudinal, transverse and vertical sliding mechanisms, thus preventing the resin components from chipping at room temperature.
This effectively prevents resin chipping at the cutting edges, reduces dust pollution, and ensures the insulation performance of the copper-clad laminate.
Smart Images
Figure CN122274453A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of copper clad laminate production technology, and more specifically to a prepreg production equipment for copper clad laminates. Background Technology
[0002] Prepreg plays a dual role as both an "adhesive" and an "insulator." It is a sheet-like material in a "semi-cured" stage. In multilayer circuit boards, it acts like "glue," tightly bonding the internal circuit layers (such as copper foil) together. Simultaneously, it serves as an insulating layer, ensuring that short circuits do not occur between the different circuit layers.
[0003] When pressing copper-clad laminates, prepreg and copper foil are stacked together in a specific order. In multilayer boards, an inner core board with etched circuitry is also included. The stacked materials are then fed into a vacuum thermopress. Under vacuum conditions, high temperature (typically between 120°C and 200°C) and high pressure are applied. At this point, the resin in the prepreg melts and flows again, filling and impregnating the gaps in the inner circuitry, and then completely cross-links and cures, permanently bonding the copper foil and core board together to form the copper-clad laminate.
[0004] Before pressing copper-clad laminates, the wide prepreg needs to be cut into prepregs of the designed size. In the existing technology, mechanical cutting is carried out by a tool. During the cutting, the vibration of the tool will cause the resin component (which is hard and brittle at room temperature) at the cut edge of the prepreg to break off due to mechanical cutting, thereby generating a lot of dust, polluting the workshop environment, and affecting the subsequent lamination quality. In addition, the fiberglass cloth at the cut edge of the prepreg will be exposed and white due to resin breakage, resulting in "rough edges" or "stringing", which will affect the insulation performance of the subsequent copper-clad laminate. Summary of the Invention
[0005] The purpose of this invention is to provide a prepreg production equipment for copper clad laminates, which can avoid "burrs" or "strings" at the cutting edges of the prepreg, thereby ensuring the insulation performance of the subsequent copper clad laminates.
[0006] To achieve the above objectives, the present invention provides the following technical solution: A prepreg production equipment for copper-clad laminates is characterized by comprising a feeding base and a processing base. The feeding base is fixedly located on the rear side of the processing base. Both the feeding base and the processing base have sidewalls on their transverse sides. The sidewalls of the feeding base and the processing base are provided with longitudinal feeding tracks, which support a feeding platform. The rear side of the inner sidewall of the feeding base and the front side of the inner sidewall of the processing base are provided with synchronous pulleys. The front and rear synchronous pulleys are wound together with a synchronous belt, which is fixedly connected to the feeding platform at a certain point. The top of both sidewalls of the processing base are provided with longitudinal sliding tracks. The longitudinal sliding tracks are slidably connected to longitudinal sliding beams. The top of the longitudinal sliding beams is fixedly connected to a first transverse sliding track. The first transverse sliding track is slidably connected to a transverse sliding seat. The transverse sliding seat is fixedly connected to a vertical sliding track. The vertical sliding track is slidably connected to a vertical sliding seat. The vertical sliding seat is fixedly connected to a laser emitting gun.
[0007] Specifically, the loading platform has two sets of track wheels on both sides of the horizontal direction, and the track wheels cooperate with the longitudinal feeding track.
[0008] Specifically, the front and rear edges of the feeding platform are equipped with tableting cylinders, which are arranged longitudinally. The piston rod of the tableting cylinder is fixed to a tableting soft rubber block, and the bottom wall of the extended end of the tableting soft rubber block is provided with a clamping chamfer.
[0009] Specifically, both ends of the longitudinal sliding beam are provided with mating seats, and the bottom of the mating seats is fixedly connected to a longitudinal sliding slider. The longitudinal sliding slider and the longitudinal sliding track are slidably mated. The mating seats are provided with a longitudinal drive motor. The top of both sides of the processing base are fixedly connected to a longitudinal rack. The longitudinal rack is arranged parallel to the longitudinal sliding track. The motor shaft of the longitudinal drive motor is fixedly connected to a longitudinal drive gear, which meshes with the longitudinal rack.
[0010] Specifically, the front wall of the longitudinal sliding beam is fixedly connected to a second transverse sliding rail, the cross section of the transverse sliding seat is L-shaped, the bottom wall of the transverse sliding seat is provided with a first transverse slider, the first transverse slider is slidably engaged with the first transverse sliding rail, and the rear wall of the transverse sliding seat is provided with a second transverse slider, the second transverse slider is slidably engaged with the second transverse sliding rail.
[0011] Specifically, a transverse drive motor is provided on the top wall of the transverse sliding seat, and a transverse rack is provided on the top of the longitudinal sliding beam. The transverse rack is arranged parallel to the first transverse sliding track. A transverse drive gear is fixedly connected to the motor shaft of the transverse drive motor, and the transverse drive gear meshes with the transverse rack.
[0012] Specifically, a lead screw mechanism is fixedly connected to the transverse sliding seat, and a lead screw nut is threadedly connected to the lead screw of the lead screw mechanism. The lead screw nut is fixedly connected to the vertical sliding seat.
[0013] Specifically, two vertical sliding tracks are fixed to the front side of the horizontal sliding seat. The two vertical sliding tracks are slidably connected to the vertical sliding seat. The vertical sliding seat has an L-shaped cross-section, and the bottom wall of the vertical sliding seat is fixed to the laser emitting gun.
[0014] Specifically, two locking cylinders are fixed to the front edge of the processing base. The locking cylinders are arranged vertically, and a positioning block is fixed to the end of the piston rod of the locking cylinder. Two positioning slots are fixed to the front edge of the loading platform, and the positioning block can cooperate with the positioning slot.
[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: The longitudinal sliding beam moves longitudinally along the longitudinal sliding track, and the transverse sliding seat moves laterally along the first transverse sliding track, allowing the laser emitting gun to achieve longitudinal and transverse feeding. The vertical sliding seat can be adjusted vertically to adjust the distance between the laser emitting gun and the wide prepreg. After adjusting the distance, the wide prepreg can be laser-cut according to the program.
[0016] Laser cutting of wide prepregs avoids the resin components (which are hard and brittle at room temperature) at the cut edges from chipping due to mechanical cutting. It also avoids generating a large amount of dust, polluting the workshop environment, and affecting the quality of subsequent lamination. In addition, it prevents the fiberglass cloth at the cut edges of the prepreg from being exposed and turning white due to resin chipping, thus avoiding "rough edges" or "stringing" that would affect the insulation performance of the subsequent copper-clad laminate. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 An overall view of a prepreg production equipment for copper-clad laminates; Figure 2 for Figure 1 A partial view; Figure 3 This is a partial view of a prepreg production equipment for copper-clad laminates, excluding the loading platform; Figure 4 for Figure 3 A partial view; Figure 5 This is a view of the loading platform; Figure 6 for Figure 5 A partial view; Figure 7This is a view of the transverse sliding seat and related structures.
[0019] In the picture: 1. Feeding base; 11. Longitudinal feeding track; 12. Synchronous pulley; 13. Synchronous belt; 2. Machining base; 21. Longitudinal sliding track; 22. Longitudinal rack; 23. Locking cylinder; 231. Positioning block; 3. Feeding platform; 31. Track wheels; 32. Tableting cylinder; 321. Tableting soft block; 322. Clamping chamfer; 33. Positioning slot; 4. Longitudinal sliding beam; 41. First transverse sliding rail; 42. Longitudinal sliding block; 43. Longitudinal drive motor; 44. Second transverse sliding rail; 45. Transverse rack; 46. Mating seat; 5. Horizontal sliding seat; 51. Vertical sliding track; 52. First horizontal slider; 53. Second horizontal slider; 54. Horizontal drive motor; 55. Lead screw mechanism; 6. Vertical sliding seat; 61. Laser emitting gun. Detailed Implementation
[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.
[0021] See Figure 1 , Figure 2 A prepreg production device for copper-clad laminates includes a feeding base 1 and a processing base 2, with the feeding base 1 fixedly disposed on the rear side of the processing base 2. Both the feeding base 1 and the processing base 2 have sidewalls on their lateral sides. The inner sidewalls of the feeding base 1 and the processing base 2 on the same side are provided with the same longitudinal feeding track 11, and the left and right longitudinal feeding tracks 11 jointly support the feeding platform 3.
[0022] See Figure 2 , Figure 3 Synchronous pulleys 12 are provided on the rear side of the inner wall of the loading base 1 and the front side of the inner wall of the processing base 2. A synchronous belt 13 is wound around the front and rear synchronous pulleys 12. At a certain point on the synchronous belt 13 ( Figure 1 , Figure 3 (At point A) it is fixedly connected to the feeding platform 3.
[0023] See Figure 1 , Figure 2 The processing base 2 has longitudinal sliding rails 21 on the top of both side walls, and longitudinal sliding beams 4 are slidably connected to the longitudinal sliding rails 21. A first transverse sliding rail 41 is fixedly connected to the top of the longitudinal sliding beam 4, and a transverse sliding seat 5 is slidably connected to the first transverse sliding rail 41. Figure 7 A horizontal sliding seat 5 is fixedly connected to a vertical sliding track 51, and the vertical sliding track 51 is slidably connected to a vertical sliding seat 6, which is fixedly connected to a laser emitting gun 61.
[0024] Specifically, see Figure 5 , Figure 6 The loading platform 3 has two sets of track wheels 31 on both sides of its horizontal direction. The track wheels 31 cooperate with the longitudinal feeding track 11 (in combination). Figure 1 ).
[0025] Specifically, see Figure 5 , Figure 6 The front and rear edges of the feeding platform 3 are equipped with tableting cylinders 32. The tableting cylinders 32 are arranged longitudinally. The piston rod of the tableting cylinder 32 is fixedly connected to a tableting soft rubber block 321. The bottom wall of the extended end of the tableting soft rubber block 321 is provided with a pressing chamfer 322.
[0026] Specifically, see Figure 2 Both ends of the longitudinal sliding beam 4 are provided with mating seats 46. A longitudinal sliding slider 42 is fixedly connected to the bottom of the mating seat 46, and the longitudinal sliding slider 42 is slidably engaged with the longitudinal sliding rail 21. The mating seat 46 is provided with a longitudinal drive motor 43. The top of both side walls of the processing base 2 are fixedly connected with longitudinal racks 22, which are arranged parallel to the longitudinal sliding rail 21. The motor shaft of the longitudinal drive motor 43 is fixedly connected with a longitudinal drive gear (not shown in the figure), which meshes with the longitudinal rack 22.
[0027] Specifically, see Figure 2 , Figure 7 The front wall of the longitudinal sliding beam 4 is fixedly connected to a second transverse sliding rail 44, and the cross-section of the transverse sliding seat 5 is L-shaped. The bottom wall of the transverse sliding seat 5 is provided with a first transverse slider 52, which is slidably engaged with the first transverse sliding rail 41. The rear wall of the transverse sliding seat 5 is provided with a second transverse slider 53, which is slidably engaged with the second transverse sliding rail 44.
[0028] Specifically, Figure 7 The top wall of the transverse sliding seat 5 is provided with a transverse drive motor 54, and the top of the longitudinal sliding beam 4 is provided with a transverse rack 45. The transverse rack 45 is arranged parallel to the first transverse sliding track 41. The motor shaft of the transverse drive motor 54 is fixedly connected with a transverse drive gear (not shown in the figure), and the transverse drive gear meshes with the transverse rack 45.
[0029] Specifically, Figure 7 A lead screw mechanism 55 is fixedly connected to the transverse sliding seat 5. The lead screw mechanism 55 is threadedly connected to a lead screw nut (not shown in the figure). The lead screw nut is fixedly connected to the vertical sliding seat 6.
[0030] Specifically, Figure 7 Two vertical sliding tracks 51 are fixedly connected to the front side of the horizontal sliding seat 5, and the two vertical sliding tracks 51 are slidably connected to the vertical sliding seat 6. The vertical sliding seat 6 has an L-shaped cross-section, and the bottom wall of the vertical sliding seat 6 is fixedly connected to the laser emitting gun 61.
[0031] Specifically, Figure 7 Two locking cylinders 23 are fixedly connected to the front edge of the processing base 2. The locking cylinders 23 are arranged vertically, and a positioning block 231 is fixedly connected to the end of the piston rod of the locking cylinder 23. Two positioning slots 33 are fixedly connected to the front edge of the loading platform 3 (combined with...). Figure 5 , Figure 6 The positioning insert 231 can cooperate with the positioning slot 33.
[0032] The working principle of this invention is as follows: In its initial state, the loading platform 3 is located at the loading base 1 (e.g., Figure 1 As shown), the two sets of track wheels 31 on the same side of the loading platform 3 cooperate with the longitudinal feeding track 11 on the same side, so that the loading platform 3 can slide along the longitudinal feeding track 11.
[0033] During loading, the wide-width semi-cured sheet (not shown in the figure) is placed on the loading platform 3. After adjustment and alignment, the piston rods of the four pressing cylinders 32 extend outward simultaneously, so that the pressing chamfers 322 of the four pressing soft rubber blocks 321 press the four corners of the wide-width semi-cured sheet, thereby fixing the wide-width semi-cured sheet.
[0034] Subsequently, the synchronous pulley 12 drives the synchronous belt 13 to move, causing the upper section of the synchronous belt 13 to move forward, thereby dragging the loading platform 3 into the processing base 2, and aligning the two positioning slots 33 on the front edge of the loading platform 3 with the two positioning blocks 231 on the front edge of the processing base 2. Then, the two locking cylinders 23 drive the two positioning blocks 231 to move upward and insert into the two positioning slots 33, thus achieving the positioning of the wide-width prepreg sheet with the processing base 2.
[0035] Subsequently, the longitudinal sliding beam 4 moves longitudinally along the longitudinal sliding track 21, and the transverse sliding seat 5 moves transversely along the first transverse sliding track 41, so as to enable the laser emitting gun 61 to achieve longitudinal and transverse feeding. The vertical sliding seat 6 can be adjusted vertically to adjust the distance between the laser emitting gun 61 and the wide prepreg. After adjusting the distance, the wide prepreg can be laser-cut according to the program.
[0036] Laser cutting of wide prepregs avoids the resin components (which are hard and brittle at room temperature) at the cut edges from chipping due to mechanical cutting. It also avoids generating a large amount of dust, polluting the workshop environment, and affecting the quality of subsequent lamination. In addition, it prevents the fiberglass cloth at the cut edges of the prepreg from being exposed and turning white due to resin chipping, thus avoiding "rough edges" or "stringing" that would affect the insulation performance of the subsequent copper-clad laminate.
[0037] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.
Claims
1. A prepreg production equipment for copper-clad laminates, characterized in that: The system includes a loading base and a processing base. The loading base is fixedly located behind the processing base. Both the loading base and the processing base have side walls on their lateral sides. The side walls of the loading base and the processing base have longitudinal feeding tracks that support the loading platform. The rear side of the inner side wall of the loading base and the front side of the inner side wall of the processing base are equipped with synchronous pulleys. The two synchronous pulleys are wound together with a synchronous belt, which is fixedly connected to the loading platform at a certain point. The top of both side walls of the processing base are equipped with longitudinal sliding tracks. The longitudinal sliding tracks are slidably connected to longitudinal sliding beams. The top of the longitudinal sliding beams is fixedly connected to a first transverse sliding track. The first transverse sliding track is slidably connected to a transverse sliding seat. The transverse sliding seat is fixedly connected to a vertical sliding track. The vertical sliding track is slidably connected to a vertical sliding seat. The vertical sliding seat is fixedly connected to a laser emitting gun.
2. The prepreg production equipment for copper-clad laminates according to claim 1, characterized in that: The loading platform has two sets of track wheels on both sides, which cooperate with the longitudinal feeding track.
3. The prepreg production equipment for copper-clad laminates according to claim 1, characterized in that: The front and rear edges of the feeding platform are equipped with tableting cylinders. The tableting cylinders are arranged longitudinally, and the piston rod of the tableting cylinder is fixed to the end of the tableting soft rubber block. The bottom wall of the extended end of the tableting soft rubber block is provided with a clamping chamfer.
4. The equipment for producing prepreg for copper-clad laminates according to claim 1, characterized in that: Both ends of the longitudinal sliding beam are equipped with mating seats. The bottom of the mating seats is fixedly connected to a longitudinal sliding slider. The longitudinal sliding slider and the longitudinal sliding track are slidably mated. The mating seats are equipped with a longitudinal drive motor. The top of both sides of the processing base are fixedly connected to a longitudinal rack. The longitudinal rack is arranged parallel to the longitudinal sliding track. The motor shaft of the longitudinal drive motor is fixedly connected to a longitudinal drive gear. The longitudinal drive gear meshes with the longitudinal rack.
5. The prepreg production equipment for copper-clad laminates according to claim 1, characterized in that: The front wall of the longitudinal sliding beam is fixed with a second transverse sliding rail. The cross section of the transverse sliding seat is L-shaped. The bottom wall of the transverse sliding seat is provided with a first transverse slider. The first transverse slider and the first transverse sliding rail are slidably engaged. The rear wall of the transverse sliding seat is provided with a second transverse slider. The second transverse slider and the second transverse sliding rail are slidably engaged.
6. The prepreg production equipment for copper-clad laminates according to claim 5, characterized in that: The top wall of the transverse sliding seat is equipped with a transverse drive motor, and the top of the longitudinal sliding beam is equipped with a transverse rack. The transverse rack is arranged parallel to the first transverse sliding track. The motor shaft of the transverse drive motor is fixedly connected to a transverse drive gear, which meshes with the transverse rack.
7. The equipment for producing prepreg for copper-clad laminates according to claim 1, characterized in that: A lead screw mechanism is fixedly connected to the horizontal sliding seat. The lead screw mechanism is threadedly connected to a lead screw nut, which is fixedly connected to the vertical sliding seat.
8. The equipment for producing prepreg for copper-clad laminates according to claim 1, characterized in that: Two vertical sliding tracks are fixed to the front side of the horizontal sliding seat. The two vertical sliding tracks are slidably connected to the vertical sliding seat. The vertical sliding seat has an L-shaped cross-section, and the bottom wall of the vertical sliding seat is fixed to the laser emitting gun.
9. The prepreg production equipment for copper-clad laminates according to claim 1, characterized in that: Two locking cylinders are fixed to the front edge of the processing base. The locking cylinders are set vertically, and a positioning block is fixed to the end of the piston rod of the locking cylinder. Two positioning slots are fixed to the front edge of the loading platform, and the positioning block can cooperate with the positioning slot.