Copper foil substrate cutting device for aluminum-based copper clad plate

Abstract

This invention relates to the field of aluminum-based copper clad laminate processing technology, and discloses a copper foil substrate cutting device for aluminum-based copper clad laminates. The device includes two bases, with a drive roller rotatably mounted between the bases. A lifting roller is positioned above the drive roller. A support is mounted on the feed side of the drive roller, with a first support roller at one end of the support. A second support roller is rotatably mounted on the base, and a floating roller is positioned between the first and second support rollers. A receiving plate is mounted on the discharge side of the drive roller, with a first sliding plate on the lower side of the receiving plate. A lower moving blade is fixed to the top of the first sliding plate, and a second drive source is connected to the first sliding plate. A second sliding plate is mounted on the upper side of the receiving plate, with a lower pressing block connected below the second sliding plate. An upper blade holder is fixed to the lower pressing block. A transmission assembly connects the first and second sliding plates. In this invention, the floating roller provides constant tension to prevent loosening. Furthermore, the lower pressing block presses firmly against the copper foil substrate during cutting, preventing displacement and improving cutting quality.

Description

Technical Field

[0001] This invention belongs to the field of aluminum-based copper clad laminate processing technology, and relates to a copper foil substrate cutting device for aluminum-based copper clad laminates. Background Technology

[0002] Aluminum-based copper clad laminates generally consist of a circuit layer (copper foil), an insulating layer (which has both thermal conductivity and insulation functions), and an aluminum base layer. The layers are bonded together through a hot-pressing process. It can be used as a substrate material in printed circuit board manufacturing, playing a role in interconnection, insulation, and support of the printed circuit board.

[0003] In the production process of aluminum-based copper clad laminates, rolls of copper foil are first continuously released, coated with an insulating layer by an adhesive coating machine, and then dried. After drying, they need to be cut into copper foil substrates according to preset dimensions for subsequent hot pressing with the aluminum substrate. Since the adhesive coating and drying processes are continuous operations, the dried copper foil substrates are continuously conveyed to the subsequent cutting station.

[0004] In the prior art, Chinese invention patent CN110587706B discloses a cutting blade structure, including a left base, a right base, a feeding roller, a bottom cutting device, and a rotary cutting device. Two feeding rollers are arranged at the upper end of the support plate, with a linear guide rail two between them. The linear guide rail two is mounted on the inner wall of the support plate. A slider two is slidably connected to the linear guide rail two, and a bearing seat two is mounted on the slider two. An adjusting roller is rotatably connected between the bearing seats two. A fixed support is connected below the linear guide rail two, and a replaceable support tube is bolted to the top of the fixed support. The support tube supports the bearing seats two, and the distance between the adjusting roller and the feeding roller is adjusted by changing the length of the support tube, thereby adjusting the tension of the output material. However, the above-mentioned cutting blade... The structure has the following shortcomings in use: Firstly, its tension adjustment method is pre-adjusted and fixed. During cutting, the copper foil substrate located at the cutting blade structure needs to stop feeding, while the upstream copper foil substrate continues to feed. This causes the copper foil substrate at the adjusting roller to accumulate and become loose, making it impossible to maintain stable tension. Therefore, it is not suitable for production scenarios where copper foil substrates are continuously released and fed. Secondly, the cutting blade structure cannot press the copper foil substrate tightly during cutting. The copper foil substrate is prone to displacement during the cutting process, resulting in skewed cutting lines or incomplete cutting, which reduces the cutting quality.

[0005] Therefore, in order to solve the above problems, there is an urgent need for a copper foil substrate cutting equipment for aluminum-based copper clad laminates that can adapt to continuous feeding of copper foil substrates, effectively buffer and maintain stable tension during cutting, and at the same time ensure cutting quality. Summary of the Invention

[0006] This invention proposes a copper foil substrate cutting device for aluminum-based copper clad laminates, which effectively solves the problems in the prior art.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a copper foil substrate cutting device for aluminum-based copper clad laminate, comprising two parallel seats, an active roller rotatably disposed between the seats, a lifting roller disposed above the active roller, the active roller being connected to a first drive source, a bracket connected to the seats on the feeding side of the active roller, a first support roller disposed at one end of the bracket away from the seats, a second support roller rotatably disposed on the seats, a floating roller disposed between the first support roller and the second support roller, and sliders connected to both ends of the floating roller, the sliders being able to slide freely up and down along the bracket;

[0008] The discharge side of the active roller is provided with a receiving plate. The lower side of the receiving plate is provided with a first sliding plate that can reciprocate up and down. A lower moving blade is fixed at the top of the first sliding plate. The first sliding plate is connected to a second drive source mounted on a base. A cutting window is provided on the receiving plate for the lower moving blade to pass through. The upper side of the receiving plate is provided with a second sliding plate that can reciprocate up and down. A lower pressing block is connected below the second sliding plate. An upper blade holder is fixed on the lower pressing block. A transmission assembly is connected between the first and second sliding plates. When the second drive source drives the first sliding plate to move upward, the transmission assembly drives the second sliding plate to move downward, so that the lower pressing block presses the copper foil substrate onto the receiving plate. At the same time, the lower moving blade and the upper blade holder cut the copper foil substrate through the cutting window.

[0009] Furthermore, both ends of the lifting roller are rotatably connected to mounting blocks, and a drive cylinder fixed to the base is provided above the mounting block, with the telescopic end of the drive cylinder connected to the mounting block.

[0010] Furthermore, both ends of the floating roller are provided with slide bars connected to the bracket, and the slider is slidably connected to the slide bars;

[0011] Proximity sensors are installed on one side of both the upper and lower parts of the slide bar.

[0012] Furthermore, the transmission assembly includes an extension rod disposed at the end of the second slide plate, a lever disposed on one side of the extension rod, the middle part of the lever being rotatably connected to the base, one end of the lever having a first waist-shaped hole for the extension rod to be inserted, and the other end of the lever being fitted with a push rod, the bottom end of the push rod being connected to the first slide plate.

[0013] Furthermore, a connecting shaft is rotatably connected to the middle of the lever, and a torsion spring is sleeved on the connecting shaft. One torsion arm of the torsion spring is connected to the lever, and the other torsion arm is connected to the base.

[0014] Furthermore, a second waist-shaped hole is provided on the end of the lever facing the top rod, and a U-shaped frame is fixed to the top of the top rod. A rotating sleeve inserted into the second waist-shaped hole is rotatably connected to the U-shaped frame.

[0015] Furthermore, a groove is formed on the lower end face of the lower pressure block, and the upper knife holder is fixed in the groove.

[0016] Furthermore, an elastic strip is provided on the bottom surface of the pressing block.

[0017] Furthermore, a pressure strip is provided on the bottom surface of the lower pressure block, and multiple springs are connected between the pressure strip and the bottom surface of the lower pressure block.

[0018] Furthermore, the second drive source includes a rotating shaft rotatably connected between the two seats, a crank connected to the rotating shaft, a transmission link hinged to one end of the crank away from the rotating shaft, the other end of the transmission link hinged to the bottom end of the first slide plate, and a motor connected to one end of the rotating shaft.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] In this invention, the floating roller can slide freely up and down along the support via a slider. When cutting or conveying the copper foil substrate, the floating roller can provide constant tension to the copper foil substrate continuously released upstream in real time under its own weight, avoiding the phenomenon of loosening, and making it convenient for use in production scenarios of continuous release or conveying.

[0021] In this invention, a transmission assembly is connected between the first sliding plate and the second sliding plate. The transmission assembly enables the first sliding plate to drive the lower moving blade to move upward, while the second sliding plate can drive the lower pressing block to press the copper foil substrate onto the receiving plate. At the same time, the lower moving blade and the upper blade holder cooperate to cut the copper foil substrate, avoiding displacement of the copper foil substrate during cutting and improving the cutting quality. Attached Figure Description

[0022] Figure 1 This is the front view of the present invention;

[0023] Figure 2 This is a top view of the present invention;

[0024] Figure 3 This is a perspective view of the base and connecting structure in this invention;

[0025] Figure 4 for Figure 2 AA section view in the middle;

[0026] Figure 5 This is a perspective view of the transmission component in this invention;

[0027] Figure 6 for Figure 4 Enlarged view of part B in the image;

[0028] Figure 7 for Figure 5 Enlarged view of section C in the image;

[0029] Figure 8 for Figure 3 Enlarged view of part D in the image;

[0030] Figure 9 This is a schematic diagram of another embodiment of the transmission component in this invention.

[0031] In the diagram: 1. Base; 2. Drive roller; 3. Lifting roller; 4. First drive source; 5. Bracket; 6. First support roller; 7. Second support roller; 8. Floating roller; 9. Slider; 10. Receiving plate; 11. First sliding plate; 12. Lower moving blade; 13. Cutting window; 14. Second sliding plate; 15. Lower pressure block; 16. Upper blade holder; 17. Mounting block; 18. Drive cylinder; 19. Slide rod; 20. Proximity sensor; 21. Extension rod; 22. Toggle rod; 23. First oblong hole; 24. Top rod; 25. Torsion spring; 26. Second oblong hole; 27. U-shaped frame; 28. Rotating sleeve; 29. ​​Groove; 30. Elastic strip; 31. Pressure strip; 32. Spring; 33. Rotating shaft; 34. Crank; 35. Transmission connecting rod; 36. Motor; 37. Conveyor platform. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Example 1:

[0034] like Figures 1 to 4As shown, this invention proposes a copper foil substrate cutting device for aluminum-based copper clad laminates, comprising two parallel bases 1, with a drive roller 2 rotatably mounted between the bases 1, a lifting roller 3 positioned above the drive roller 2, and a first drive source 4 connected to the drive roller 2. A bracket 5 connected to the base 1 is located on the feed side of the drive roller 2, and a first support roller 6 is located at the end of the bracket 5 facing away from the base 1. A second support roller 7 is rotatably mounted on the base 1, and a floating roller 8 is positioned between the first support roller 6 and the second support roller 7. Slider 9s are connected to both ends of the floating roller 8, and the slider 9s move along... The support 5 can slide freely up and down; in this embodiment, both ends of the active roller 2 are fixed with short shafts and connected to the base 1 through bearings and bearing seats. The first drive source 4 includes a servo motor mounted on the base 1 and an active synchronous pulley connected to the output shaft of the servo motor. A driven synchronous pulley is connected to the short shaft at one end of the active roller 2, and a synchronous belt is connected between the active synchronous pulley and the driven synchronous pulley. The axes of the active roller 2, the lifting roller 3, the first support roller 6, the second support roller 7, and the floating roller 8 are arranged parallel to each other. When feeding the copper foil substrate, if... Figure 4 As shown, the roller first passes over the top of the first support roller 6, then passes over the bottom of the floating roller 8, and then passes over the top of the second support roller 7 and the drive roller 2. Finally, the lifting roller 3 is pressed onto the drive roller 2. Driven by the first drive source 4, the drive roller 2 and the lifting roller 3 work together to transport the copper foil substrate.

[0035] The bracket 5 includes two long plates and two short plates. One end of each long plate and short plate is fixed to the base 1 by fastening bolts. The two long plates are located on the upper part of the base 1, and the two short plates are located on the lower part of the base 1. The two ends of the first support roller 6 are connected to the ends of the two long plates by bearings and bearing seats.

[0036] Furthermore, such as Figure 5 as well as Figure 6 As shown, the discharge side of the active roller 2 of the present invention is provided with a receiving plate 10. The lower side of the receiving plate 10 is provided with a first sliding plate 11 capable of reciprocating up and down. The top of the first sliding plate 11 is fixed with a lower moving blade 12. The first sliding plate 11 is connected to a second drive source provided on the base 1. The receiving plate 10 is provided with a cutting window 13 for the lower moving blade 12 to pass through. The upper side of the receiving plate 10 is provided with a second sliding plate 14 capable of reciprocating up and down. The lower part of the second sliding plate 14 is connected with a lower pressing block 15. An upper blade holder 16 is fixed on the lower pressing block 15. A transmission assembly is connected between the first sliding plate 11 and the second sliding plate 14. After the copper foil substrate is conveyed to a certain length by the active roller 2 and the lifting roller 3, the second drive source can drive the first sliding plate 11 to move upward and drive the second sliding plate 14 to move downward through the transmission assembly, so that the lower pressing block 15 presses the copper foil substrate onto the receiving plate 10. At the same time, the lower moving blade 12 and the upper blade holder 16 cut the copper foil substrate through the cutting window 13.

[0037] Specifically, both ends of the receiving plate 10 are integrally connected with folded edges, which are bolted to the side of the base 1. Two first clamping plates are symmetrically arranged at both ends of the first sliding plate 11. The first clamping plates are bolted to the base 1. The first clamping plates are elongated and can guide the up and down movement of the first sliding plate 11. Two second clamping plates are symmetrically arranged at both ends of the second sliding plate 14. The second clamping plates are integrally connected with extensions. The extensions are U-shaped and can be fixedly connected to the base 1 by bolts or welding. The second clamping plates can guide the up and down movement of the second sliding plate 14.

[0038] In this embodiment, mounting blocks 17 are rotatably connected to both ends of the lifting roller 3. A drive cylinder 18 fixed to the base 1 is disposed above the mounting block 17, and the telescopic end of the drive cylinder 18 is connected to the mounting block 17. The telescopic end of the drive cylinder 18 can drive the mounting block 17 to move up and down, thereby driving the lifting roller 3 to move up and down. When the active roller 2 needs to transport the copper foil substrate, the telescopic end of the drive cylinder 18 extends to drive the lifting roller 3 to descend, so that the lifting roller 3 presses against the active roller 2. When it is not necessary to transport the copper foil substrate, the telescopic end of the drive cylinder 18 shortens to drive the lifting roller 3 to rise. Specifically, short shafts are fixed to both ends of the lifting roller 3, and bearings are installed on the mounting block 17. The short shafts cooperate with the bearings. Preferably, rubber sleeves are provided on the outside of both the lifting roller 3 and the active roller 2, which can improve friction, ensure the reliability of transporting the copper foil substrate, and also protect the copper foil substrate.

[0039] In this embodiment, as Figures 5 to 7 As shown, the transmission assembly includes an extension rod 21 disposed at the end of the second slide plate 14. A lever 22 is disposed on one side of the extension rod 21. The middle part of the lever 22 is rotatably connected to the base 1. One end of the lever 22 has a first oblong hole 23 for inserting the extension rod 21. The other end of the lever 22 is fitted with a push rod 24, the bottom end of which is connected to the first slide plate 11. Figure 4 As shown, when the first slide plate 11 moves upward, it simultaneously drives the top rod 24 to contact one end of the lever 22, and pushes the end of the lever 22 that is in contact with the top rod 24 upward. The lever 22 rotates clockwise, thereby causing the extension rod 21 to move downward toward one end of the second slide plate 14. At the same time, the second slide plate 14 slides downward, causing the lower pressure block 15 connected to the second slide plate 14 to press the copper foil substrate onto the receiving plate 10. Therefore, the transmission assembly can link the movements of the first slide plate 11 and the second slide plate 14, so that the copper foil substrate can be pressed during cutting, thereby improving the cutting quality of the copper foil substrate by the lower moving blade 12 and the upper blade holder 16. Furthermore, as Figure 4As shown, a cover can be installed above the lever 22 to protect the transmission components and prevent external debris from falling near the lever 22 and causing it to jam. The cover can be fastened to the base 1 at both ends with bolts. Preferably, transmission components are provided at both ends of the second slide plate 14 to maintain balanced force on both sides of the second slide plate 14 and improve the reliability of up and down sliding.

[0040] Specifically, the extension rod 21 is cylindrical and integrally formed on the end face of the second slide plate 14. The middle part of the lever 22 is fitted with a connecting shaft. One end of the connecting shaft is welded to the base 1, and the other end is interference-fitted with a rotating bearing. The rotating bearing is embedded in the middle of the lever 22, so that the lever 22 can rotate smoothly. The bottom of the push rod 24 is welded with a horizontal rod or horizontal plate. The horizontal rod or horizontal plate is connected to the first slide plate 11 by bolts. In order for the push rod 24 to work normally, a notch is opened at the end of the receiving plate 10 for the push rod 24 to pass through. Furthermore, a guide block is provided in the middle of the push rod 24. The guide block is connected to the base 1 by screws. A guide hole is opened on the guide block for the push rod 24 to pass through, so as to guide the up and down movement of the push rod 24.

[0041] In this embodiment, a torsion spring 25 is sleeved on the connecting shaft. One torsion arm of the torsion spring 25 is connected to the lever 22, and the other torsion arm is connected to the base 1. When the lever 22 rotates clockwise, the torsion spring 25 accumulates elastic potential energy. When the second drive source drives the first slide plate 11 to move downward, the torsion spring 25 can drive the lever 22 to rotate counterclockwise. This causes the lever 22 to drive the second slide plate 14 to move upward under the cooperation of the first waist-shaped hole 23 and the extension rod 21. This causes the lower pressure block 15 to move away from the receiving plate 10, ensuring that there is a sufficient gap between the lower pressure block 15 and the receiving plate 10, allowing the copper foil substrate to pass through the gap smoothly and continue to be transported. It should be noted that when the torsion spring 25 drives the lever 22 to rotate counterclockwise, the elastic force provided by the torsion spring 25 is sufficient to overcome the sum of the weights of the second slide plate 14, the lower pressure block 15, and the upper knife holder 16.

[0042] In this embodiment, a groove 29 is provided on the lower end face of the lower pressure block 15, and the upper knife holder 16 is fixed in the groove 29. The groove 29 can pass through both ends of the lower pressure block 15 in the length direction, so that the lower end face of the lower pressure block 15 forms two parallel strip structures. When the lower pressure block 15 moves downward, the strip structures can press against the receiving plate 10, and the upper knife holder 16 can be connected to the groove 29 by screws.

[0043] In this embodiment, an elastic strip 30 is bonded to the bottom surface of the lower pressing block 15. The width of the elastic strip 30 is consistent with the width of the strip structure. When the lower pressing block 15 moves downward, the elastic strip 30 can first contact the copper foil substrate. As the lower pressing block 15 continues to move downward, the elastic strip 30 presses the copper foil substrate. Due to the elasticity of the elastic strip 30 itself, the lower pressing block 15 can continue to move downward, allowing the lower moving blade 12 and the upper blade holder 16 to cut the pressed copper foil substrate. Therefore, the elastic strip 30 can generate pre-pressure when the lower pressing block 15 continues to move downward, pre-pressing the copper foil substrate, improving the reliability of pressing, and preventing displacement of the copper foil substrate during cutting. Preferably, the elastic strip 30 is made of rubber with good elasticity, such as natural rubber or neoprene rubber.

[0044] In this embodiment, as Figures 1 to 3 As shown, the second drive source includes a rotating shaft 33 rotatably connected between the two seats 1. A crank 34 is connected to the rotating shaft 33. A transmission link 35 is hinged to one end of the crank 34 away from the rotating shaft 33. The other end of the transmission link 35 is hinged to the bottom end of the first slide plate 11. A motor 36 is connected to one end of the rotating shaft 33. The motor 36 provides power and, through the transmission of the crank 34 and the transmission link 35, enables the first slide plate 11 to reciprocate up and down, cutting the copper foil substrate conveyed by the drive roller 2 according to a set rhythm. The motor 36 can be a geared servo motor.

[0045] In this embodiment, a conveyor belt platform 37 is provided on the discharge side of the drive roller 2, and the conveyor belt platform 37 is connected to the receiving plate 10. When the drive roller 2 conveys the copper foil substrate to a set length, a portion of the copper foil substrate is conveyed onto the conveyor belt platform 37. After the copper foil substrate is cut by the lower moving blade 12 and the upper blade holder 16, the conveyor belt platform 37 operates to convey the cut copper foil substrate downstream, avoiding manual material handling and reducing labor costs. The conveyor belt platform 37 is mainly a conveyor belt structure driven by a geared servo motor, which is existing technology and will not be described in detail here.

[0046] Work process:

[0047] 1. Pre-installed:

[0048] First, the copper foil substrate is passed over the top of the first support roller 6, then over the bottom of the floating roller 8, and then over the top of the second support roller 7 and the active roller 2. Then, the telescopic end of the drive cylinder 18 extends to drive the mounting block 17 to descend, so that the lifting roller 3 presses against the active roller 2 to clamp the end of the copper foil substrate.

[0049] 2. Conveying:

[0050] The first drive source 4 is started, which drives the active roller 2 to rotate. With the cooperation of the lifting roller 3, the copper foil substrate is conveyed. During the conveying, due to the gravity of the floating roller 8, tension is provided to the copper foil substrate on the feeding side of the active roller 2. Under the tension, the copper foil substrate can drive the floating roller 8 to move upward. After the active roller 2 conveys the copper foil substrate of a set length, it always provides tension to the copper foil substrate under the gravity of the floating roller 8 itself. The sliders 9 at both ends of the floating roller 8 move downward along the support 5 to avoid the upstream of the copper foil substrate from becoming loose. A certain length of copper foil substrate is buffered upstream to prepare for the next conveying by the active roller 2.

[0051] 3. Cutting:

[0052] After the active roller 2 conveys the copper foil substrate to a certain length, the active roller 2 stops rotating, the second drive source starts, and drives the first slide plate 11 to move upward. At the same time, with the cooperation of the transmission component, the second slide plate 14 moves downward. The lower pressure block 15 presses the copper foil substrate onto the receiving plate 10. At the same time, the lower moving blade 12 and the upper blade holder 16 cooperate to cut the copper foil substrate at the cutting window 13. After the cutting is completed, under the continuous operation of the second drive source, the first slide plate 11 moves downward, the second slide plate 14 moves upward under the drive of the torsion spring 25, and the lower pressure block 15 releases the copper foil substrate.

[0053] 4. Discharge:

[0054] The cut copper foil substrate is driven downstream by the conveyor belt platform 37, so that it can be picked up by the pneumatic suction cup or the staff and stacked together for use in the subsequent hot pressing process; at the same time, the drive roller 2 rotates to transport copper foil substrates of a set length again.

[0055] Example 2:

[0056] The difference compared to the above embodiments is that: in this embodiment, as... Figure 4 as well as Figure 8 As shown, both ends of the floating roller 8 are provided with slide rods 19 connected to the bracket 5, and the slider 9 is slidably connected to the slide rods 19. Specifically, open supports are provided at both ends of the slide rods 19, and the open supports are connected to the long plate or short plate of the bracket 5 by bolts. The ends of the slide rods 19 are fastened to the open supports. The slider 9 has through holes for the slide rods 19 to pass through, so that the slider 9 can slide freely along the slide rods 19. Preferably, a linear bearing can also be installed in the through hole of the slider 9, and the linear bearing is sleeved on the slide rods 19 to ensure the smooth up and down sliding of the slider 9.

[0057] Furthermore, proximity sensors 20 are provided on one side of the upper and lower parts of the slide bar 19; the proximity sensors 20 are all mounted on an L-shaped plate, and a block is connected to the L-shaped plate by screws. The block has a dovetail groove or a T-shaped groove. The block is fitted with a rail fixed to the side of the base 1. A limiting bolt is provided on the side of the block. The end of the limiting bolt can pass through the block and be tightened to the rail. The up and down position of the proximity sensor 20 can be adjusted by the block along the rail. Then, the position of the proximity sensor 20 is limited by tightening the rail with the limiting bolt.

[0058] The proximity sensor 20 is connected to an industrial control computer, and the servo motor in the first drive source 4, the geared servo motor in the second drive source, and the drive cylinder 18 are all connected to the industrial control computer. The proximity sensors 20, which are set up vertically, can detect the position of the slider 9. When the slider 9 moves upward and is detected by the proximity sensor 20, the industrial control computer receives an electrical signal. The industrial control computer controls the servo motor in the first drive source 4 to stop running and controls the geared servo motor in the second drive source to start running, driving the crank 34 to rotate one revolution. At this time, the active roller 2 has conveyed the copper foil substrate of the set length, and the lower moving knife 12 and the upper knife... The base 16 cuts the copper foil substrate under the operation of the second drive source. Simultaneously, the upstream copper foil substrate is continuously released, and under the gravity of the floating roller 8, it remains taut. The floating roller 8 moves downwards, and the slider 9 is detected by the lower proximity sensor 20, which sends an electrical signal to the industrial control computer, confirming that the copper foil substrate between the first support roller 6 and the second support roller 7 has sufficient length for subsequent cutting. The industrial control computer then controls the first drive source 4 to start operating, driving the active roller 2 to convey the copper foil substrate to the set length. This cycle repeats, achieving automated cutting and improving production efficiency. The vertical distance between the upper and lower proximity sensors 20 can be set according to the required buffer length of the copper foil substrate.

[0059] Example 3:

[0060] The difference compared to the above embodiments is that: in this embodiment, as... Figure 9As shown, a second oblong hole 26 is provided on the end of the lever 22 facing the top rod 24. A U-shaped frame 27 is fixed to the top of the top rod 24, and a rotating sleeve 28 inserted into the second oblong hole 26 is rotatably connected to the U-shaped frame 27. Specifically, a shaft is fixed on the U-shaped frame 27, and the rotating sleeve 28 is sleeved on the shaft and can rotate freely. When the top rod 24 is pushed upward, the lever 22 can be rotated clockwise with the cooperation of the rotating sleeve 28 and the second oblong hole 26. When the top rod 24 moves downward, the lever 22 can be rotated counterclockwise, and the second slide plate 14 moves upward. Therefore, the structure in this embodiment can link the movements of the first slide plate 11 and the second slide plate 14 together through the top rod 24, the U-shaped frame 27, the rotating sleeve 28, and the second oblong hole 26, and eliminates the need for the torsion spring 25, avoiding failure of the torsion spring 25 after long-term use. In Embodiment 1, in order to ensure smooth transmission between the push rod 24 and the lever 22, the combination structure of the U-shaped frame 27 and the rotating sleeve 28 in this embodiment can also be adopted, so that the rotating sleeve 28 can abut against the lower side of the lever 22.

[0061] Example 4:

[0062] The difference compared to the above embodiments is that: in this embodiment, as... Figure 9 As shown, a pressure strip 31 is provided on the bottom surface of the lower pressure block 15, and multiple springs 32 are connected between the pressure strip 31 and the bottom surface of the lower pressure block 15, replacing the aforementioned elastic strip 30. The pressure strip 31 can be made of polytetrafluoroethylene (PTFE). The springs 32 can be tapered compression springs, and multiple springs are arranged along the length of the pressure strip 31. The upper end of the spring 32 is welded to the bottom surface of the lower pressure block 15, and the lower end of the spring 32 is bonded and fixed to the pressure strip 31. The spring 32 has more deformation than the elastic strip 30, which allows for sufficient tolerance in the pressing and cutting actions. This effectively ensures the pressing of the copper foil substrate and also ensures that the upper cutter holder 16 and the lower moving cutter 12 can cut the copper foil substrate.

[0063] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A copper foil substrate cutting device for aluminum-based copper clad laminates, comprising two parallel seats (1), a drive roller (2) rotatably disposed between the seats (1), a lifting roller (3) disposed above the drive roller (2), a first drive source (4) connected to the drive roller (2), a bracket (5) connected to the seat (1) disposed on the feeding side of the drive roller (2), a first support roller (6) disposed at the end of the bracket (5) away from the seat (1), and a second support roller (7) rotatably disposed on the seat (1), characterized in that: A floating roller (8) is provided between the first support roller (6) and the second support roller (7). Both ends of the floating roller (8) are connected to sliders (9), and the sliders (9) can slide freely up and down along the bracket (5). The discharge side of the active roller (2) is provided with a receiving plate (10). The lower side of the receiving plate (10) is provided with a first sliding plate (11) capable of reciprocating up and down. The top of the first sliding plate (11) is fixed with a lower moving blade (12). The first sliding plate (11) is connected to a second drive source provided on the base (1). The receiving plate (10) is provided with a cutting window (13) for the lower moving blade (12) to pass through. The upper side of the receiving plate (10) is provided with a second sliding plate (14) capable of reciprocating up and down. A lower pressure block (15) is connected below the sliding plate (14). An upper knife holder (16) is fixed on the lower pressure block (15). A transmission assembly is connected between the first sliding plate (11) and the second sliding plate (14). When the second drive source drives the first sliding plate (11) to move upward, the transmission assembly drives the second sliding plate (14) to move downward, so that the lower pressure block (15) presses the copper foil substrate onto the receiving plate (10). At the same time, the lower moving knife (12) and the upper knife holder (16) cut the copper foil substrate through the cutting window (13).

2. The copper foil substrate cutting equipment for aluminum-based copper clad laminates according to claim 1, characterized in that: Both ends of the lifting roller (3) are rotatably connected to mounting blocks (17). A drive cylinder (18) fixed on the base (1) is provided above the mounting block (17). The telescopic end of the drive cylinder (18) is connected to the mounting block (17).

3. The copper foil substrate cutting equipment for aluminum-based copper clad laminates according to claim 1, characterized in that: Both ends of the floating roller (8) are provided with slide rods (19) connected to the bracket (5), and the slider (9) is slidably connected to the slide rods (19); Proximity sensors (20) are provided on one side of the upper and lower parts of the slide bar (19).

4. The copper foil substrate cutting equipment for aluminum-based copper clad laminates according to claim 1, characterized in that: The transmission assembly includes an extension rod (21) disposed at the end of the second slide plate (14). A lever (22) is disposed on one side of the extension rod (21). The middle part of the lever (22) is rotatably connected to the seat (1). One end of the lever (22) is provided with a first waist-shaped hole (23) for the extension rod (21) to be inserted. The other end of the lever (22) is fitted with a push rod (24). The bottom end of the push rod (24) is connected to the first slide plate (11).

5. The copper foil substrate cutting equipment for aluminum-based copper clad laminates according to claim 4, characterized in that: The lever (22) is rotatably connected to a connecting shaft in the middle. A torsion spring (25) is sleeved on the connecting shaft. One torsion arm of the torsion spring (25) is connected to the lever (22), and the other torsion arm is connected to the seat (1).

6. The copper foil substrate cutting equipment for aluminum-based copper clad laminates according to claim 4, characterized in that: The lever (22) has a second waist-shaped hole (26) on one end facing the top rod (24). A U-shaped frame (27) is fixed to the top of the top rod (24). A rotating sleeve (28) inserted into the second waist-shaped hole (26) is rotatably connected to the U-shaped frame (27).

7. The copper foil substrate cutting equipment for aluminum-based copper clad laminates according to claim 1, characterized in that: A groove (29) is provided on the lower end surface of the lower pressure block (15), and the upper knife holder (16) is fixed in the groove (29).

8. The copper foil substrate cutting equipment for aluminum-based copper clad laminates according to claim 7, characterized in that: An elastic strip (30) is provided on the bottom surface of the pressing block (15).

9. The copper foil substrate cutting equipment for aluminum-based copper clad laminates according to claim 7, characterized in that: A pressure strip (31) is provided on the bottom surface of the lower pressure block (15), and a plurality of springs (32) are connected between the pressure strip (31) and the bottom surface of the lower pressure block (15).

10. The copper foil substrate cutting equipment for aluminum-based copper clad laminates according to claim 1, characterized in that: The second drive source includes a rotating shaft (33) rotatably connected between the two seats (1), a crank (34) connected to the rotating shaft (33), a transmission link (35) hinged to one end of the crank (34) away from the rotating shaft (33), the other end of the transmission link (35) hinged to the bottom end of the first slide plate (11), and a motor (36) connected to one end of the rotating shaft (33).

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