A copper foil back adhesive die-cutting device and a die-cutting process thereof

Abstract

The present application relates to the technical field of die cutting device, and discloses a copper foil back adhesive die cutting device and a die cutting process thereof, which comprises a supporting cross beam, conveying units are connected to both ends of the supporting cross beam, the conveying units are used for conveying copper foil back adhesive, a mounting seat is connected to the supporting cross beam, and a first telescopic piece is arranged below the mounting seat; the copper foil back adhesive die cutting device and the die cutting process thereof, by adjusting the height of the mounting seat, the winding and unwinding actions of the winding roller of the film adjusting assembly are synchronous, the alternate contact of the stripping knife and the standby stripping knife with the material is realized by means of the linkage state switching assembly, so that when the protective film is updated, the standby stripping knife timely takes over the work, the waste stripping operation is ensured not to be interrupted, the production stagnation caused by film replacement is avoided, the disadvantages of manual film replacement during shutdown are avoided, the production line start-stop fluctuation is reduced, the material waste is reduced, and the die cutting production efficiency is significantly improved.

Description

Technical Field

[0001] This invention relates to the field of die-cutting equipment technology, specifically to a copper foil adhesive die-cutting device and its die-cutting process. Background Technology

[0002] Copper foil adhesive materials are widely used in electronic shielding, circuit boards, and conductive auxiliary materials for new energy applications. The production process involves key steps such as die-cutting, waste removal, and strip separation. Existing copper foil die-cutting equipment commonly uses metal scrapers to remove waste and separate strips into layers. However, due to the pressure-sensitive adhesive on the copper foil surface, issues such as adhesive overflow, adhesive stringing, and adhesive residue shedding easily occur during die-cutting. Residual adhesive and adhesive clumps easily adhere to the metal scraper's edge and working surface. Adhesive adhesion to the scraper can scratch the copper foil surface, cause product indentations, misalignment during separation, incomplete waste removal, and adhesive residue contamination leading to poor conductivity and short circuits. To address the adhesive adhesion problem on the scraper, the industry standard practice is to adhere a PTFE or PET anti-stick plastic film to the surface of the metal scraper. The low surface energy of the plastic film isolates adhesive adhesion, reducing the probability of adhesive buildup.

[0003] Existing film application methods are mostly fixed attachment structures. When the plastic film is worn, peeled, or saturated with adhesive after long-term use, the machine must be stopped and production halted. The old film must be removed manually and a new anti-stick film must be applied. Frequent machine shutdowns for film replacement not only significantly reduce die-cutting production efficiency and increase labor maintenance costs, but also cause fluctuations in production line start-up and shutdown, and material waste. Furthermore, fixed film replacement is cumbersome, has poor alignment accuracy, and is prone to problems such as film layer misalignment, exposed cutting edges, and adhesive leakage, which further affect product yield and equipment operational stability.

[0004] Therefore, a copper foil adhesive die-cutting device is needed to solve the above-mentioned technical problems. Summary of the Invention

[0005] This invention provides a copper foil adhesive die-cutting device, which aims to solve a series of problems caused by the need to stop the machine to change the film.

[0006] The present invention provides a copper foil adhesive die-cutting device, comprising a support beam, with conveying units connected to both ends of the support beam, the conveying units being used to convey copper foil adhesive, and further comprising: The mounting base is connected to the support beam. A telescopic component is provided below the mounting base, and the output end of the telescopic component is connected to a lifting seat. A support shaft is mounted on a lifting seat. A stripping blade is installed on the outer surface of the support shaft, and two mounting plates are symmetrically connected to the outer surface of the support shaft. A film adjustment assembly is mounted on a mounting plate, and a protective film is provided on the film adjustment assembly. The protective film is arranged around the peeling blade and is attached to the end of the peeling blade. The film adjustment assembly is used to make the film without adhesive buildup adhere to the end of the peeling blade. A pre-peeling blade is positioned below the peeling blade, and a pre-film is provided on the end surface of the pre-peeling blade; The linkage state switching component is located between the pre-peeling blade, the mounting base, and the mounting plate. The linkage state switching component is used to connect the peeling blade and the pre-peeling blade for use. The die-cutting unit, mounted on the support beam, is used for die-cutting the copper foil backing adhesive. The winding structure is located above the supporting beam and is used to wind up the waste material discharged by the waste discharge structure.

[0007] Preferably, the film adjustment assembly includes a rotating shaft, a connecting sleeve, connecting bolts, a roller shaft, a connecting socket, a take-up roller, and a drive structure. There are two rotating shafts, symmetrically arranged on the mounting plate. The number of connecting sleeves is the same as the number of rotating shafts, and the connecting sleeves are threadedly connected to the rotating shafts in a one-to-one correspondence. The number of connecting bolts is the same as the number of connecting sleeves, and the connecting bolts are threadedly connected to the outer surface of the connecting sleeves. The number of roller shafts is the same as the number of connecting sleeves, and the roller shafts are inserted into the connecting sleeves in a one-to-one correspondence. The connecting sockets are opened on the outer surface of the roller shafts, and the connecting bolts are adapted to the connecting sockets. The number of take-up rollers is the same as the number of roller shafts, and the take-up rollers are fixedly connected to the end of the roller shafts. The drive structure is mounted on the mounting plate and is used to drive the rotating shafts to rotate.

[0008] Preferably, the drive structure includes a drive component and gears. The drive component is fixedly mounted on the mounting plate. The output end of the drive component is connected to a rotating shaft. There are two gears, which are fixedly connected to the rotating shaft and correspond one-to-one. The two gears mesh with each other and the transmission ratio is 1:1.

[0009] Preferably, the linkage state switching component includes a clamping plate mounting plate, a pressure rod, a clamping plate, a support rod, a sleeve, a pressure plate, a rotating rod, an extension rod, a locking screw, a fixing ring, and a torsion spring. There is one clamping plate mounting plate, fixedly connected to a mounting plate. There is at least one pressure rod, fixedly connected to the clamping plate mounting plate. There are two clamping plates, symmetrically connected to a mounting base. The support rod is installed between the two clamping plates. There is at least one sleeve, rotatably mounted on the outer surface of the support rod. The pressure plate and rotating rod are symmetrically connected to the outer surface of the sleeve. The extension rod is slidably mounted inside the rotating rod, with its end fixedly connected to a pre-peeling blade. A locking screw is threaded onto the outer surface of the rotating rod. The fixing ring is installed on the outer surface of the support rod. One end of the torsion spring is connected to the fixing ring, and the other end is connected to the sleeve.

[0010] Preferably, the clamping plate has multiple insertion holes and clamping grooves. The insertion holes and clamping grooves are connected, and the diameter of the support rod is matched with the diameter of the insertion holes. The clamping groove is located at the center of the insertion holes. Multiple through holes are provided on the side adjacent to the clamping plate. The through holes penetrate the clamping plate and are connected to the insertion holes. The through holes correspond one-to-one with the insertion holes. A screw is threaded into the through hole.

[0011] Preferably, one side of the lifting seat is provided with a second insertion hole and a second clamping groove, the second clamping groove is connected to the second insertion hole, and the diameter of the support shaft is adapted to the diameter of the second insertion hole. A second screw is threadedly connected to one side of the lifting seat.

[0012] Preferably, the conveying unit includes a roller seat, a rotating roller, a slide seat, a movable roller, a pressure spring, and a pull rod. The rotating roller is rotatably mounted on the roller seat, the slide seat is slidably mounted on the roller seat, the movable roller is rotatably connected to the slide seat, one end of the pressure spring is connected to the slide seat, the other end of the pressure spring is connected to the roller seat, one end of the pull rod is connected to the slide seat, and the pull rod is slidably connected to the roller seat.

[0013] Preferably, a limiting guide structure is connected to the roller seat. The limiting guide structure is used to guide the copper foil backing adhesive. The limiting guide structure includes a limiting support plate, a limiting shaft, and a limiting slide plate. The limiting support plate is installed on one side of the roller seat. There are multiple limiting shafts. The copper foil backing adhesive is wrapped around multiple sets of limiting shafts and arranged in a wave-like, meandering tension. There are two limiting slide plates. The two limiting slide plates are slidably set on the outer surface of the limiting shaft. Each limiting slide plate is threaded with two locking screws.

[0014] Preferably, a horizontal plate is connected to the roller seat, and a guide roller is provided on the horizontal plate. The length directions of the guide roller and the limiting shaft are perpendicular to the length direction of the supporting beam. A card seat is connected to one side of the limiting support plate, and a fixed shaft is connected to the card seat. Two moving rings are slidably connected to the outer surface of the fixed shaft. A limiting piece is connected to the outer surface of the moving ring, and a locking screw is threaded to one side of the moving ring.

[0015] A copper foil adhesive die-cutting process includes the following steps: S1. The conveying unit, in conjunction with the limiting and guiding structure, limits the copper foil backing adhesive and conveys the copper foil backing adhesive material to the die-cutting unit. S2. The die-cutting unit cuts the copper foil backing into shape and then conveys it to the peeling knife station. The peeling knife, together with the protective film, contacts the material and peels off the edge waste after die-cutting. At the same time, the winding structure winds up the edge waste. S3. After a period of time, the telescopic component drives the lifting seat, support shaft and peeling knife to move upward, so that the peeling knife is separated from the copper foil backing material. At this time, the mounting plate moves upward synchronously, the torsion spring releases the torque to drive the sleeve to rotate, and drives the pre-peeling knife to move downward through the rotating rod and extension rod, so that the pre-film adheres to the material and takes over the peeling knife to continuously discharge waste. S4. The drive unit drives the rotating shaft, connecting sleeve, roller shaft and take-up roller to rotate synchronously in opposite directions through gear meshing. One side unwinds and the other side rewinds, realizing the travel and renewal of the protective film. The clean new film is delivered to the bonding position at the end of the peeling knife. S5. When the telescopic component moves the peeling knife downward to reset, the new protective film re-participates in the waste discharge. At the same time, the pressure rod presses down on the pressure plate again, driving the sleeve to rotate, and the peeling knife and the prepared film are raised and reset to standby. S6. After waste removal, the product is conveyed to the next workstation via the conveyor unit to complete the entire die-cutting operation.

[0016] The beneficial effects of this invention are: 1. By adjusting the height of the mounting base, the winding roller of the film adjustment component synchronously unwinds and rewinds. With the help of the linkage state switching component, the peeling blade and the pre-peeling blade alternately contact the material. This ensures that when the protective film is replaced, the pre-peeling blade takes over the work in time, ensuring that the waste removal operation is uninterrupted, avoiding production stoppages caused by film replacement, and avoiding the disadvantages of needing to stop the machine to replace the film manually. This reduces fluctuations in production line start-up and shutdown, reduces material waste, and significantly improves die-cutting production efficiency.

[0017] 2. The limiting and guiding structure can adapt to copper foil backing of different widths to prevent material conveying deviation. The film adjustment component realizes synchronous winding and unwinding through gear transmission, ensuring a tight fit between the protective film and the end of the peeling blade, avoiding the problem of exposed blade edge and adhesive leakage. The position of the pre-peeling blade can be adjusted and locked through the extension rod to ensure precise contact with the material, effectively reducing quality defects such as scratches, indentations, and adhesive residue contamination on the copper foil surface, and improving product yield. Attached Figure Description

[0018] Figure 1 This is a first-view structural schematic diagram of the present invention.

[0019] Figure 2 This is a schematic diagram of the second perspective structure of the present invention.

[0020] Figure 3 This is a third-view structural diagram of the present invention.

[0021] Figure 4 This is a schematic diagram of the fourth perspective structure of the present invention.

[0022] Figure 5 This is a first-view structural schematic diagram of the mounting base and its connecting components of the present invention.

[0023] Figure 6 This is the present invention. Figure 5 A magnified structural diagram of point A in the middle.

[0024] Figure 7This is a second-view structural schematic diagram of the mounting base and its connecting components of the present invention.

[0025] Figure 8 This is a structural schematic diagram of the peeling blade and its connecting components of the present invention.

[0026] Figure 9 This is a structural schematic diagram of the support rod and its connecting components of the present invention.

[0027] Figure 10 This is an exploded structural diagram of the mounting plate and its connecting components of the present invention.

[0028] Figure 11 This is a schematic diagram of the mounting plate of the present invention.

[0029] Figure 12 This is a schematic diagram of the conveying unit of the present invention.

[0030] Figure 13 This is the present invention. Figure 7 A magnified structural diagram at point B in the middle.

[0031] Figure 14 This is a schematic diagram of the structure of the lower mold base of the present invention. Figure label: 10. Frame; 11. Support beam; 20. Mounting base; 21. Telescopic component one; 22. Lifting base; 221. Insertion hole two; 222. Clamping groove two; 23. Support shaft; 24. Peeling knife; 25. Mounting plate; 26. Preparatory peeling knife; 27. Protective film; 28. Preparatory film; 29. ​​Screw two; 30. Rotating shaft; 31. Connecting sleeve; 32. Connecting bolt; 33. Roller shaft; 331. Connecting insertion hole; 34. Take-up roller; 35. Drive component; 36. Gear; 40. Clamping plate mounting plate; 41. Pressure rod; 42. Clamping plate; 421. Insertion hole one; 422. Clamping groove one; 423. Through hole; 43. Support rod ; 44. Sleeve; 45. Pressure plate; 46. Rotating rod; 47. Extension rod; 48. Locking screw one; 49. Fixing ring; 410. Torsion spring; 411. Screw one; 50. Stand; 51. Winding structure; 52. Roller seat; 53. Rotating roller; 54. Slide seat; 55. Moving roller; 56. Pressure spring; 57. Pull rod; 60. Limiting support plate; 61. Limiting shaft; 62. Limiting slide plate; 63. Locking screw two; 64. Horizontal plate; 65. Guide roller; 66. Card seat; 67. Fixing shaft; 68. Moving ring; 69. Limiting piece; 610. Locking screw three; 70. Lower die base; 71. Telescopic component two; 72. Upper die base. Detailed Implementation

[0032] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0033] like Figures 1 to 14 As shown, a copper foil backing die-cutting device of the present invention includes a frame 10. Two sets of conveying units are symmetrically installed on the top of the frame 10. The conveying units are used to convey materials, and a support beam 11 is connected between the two sets of conveying units. The length direction of the support beam 11 is parallel to the length direction of the frame 10. A die-cutting unit and a waste removal structure are installed on the support beam 11. The die-cutting unit is used to die-cut the material, and the waste removal structure is used to peel off and roll up the edge waste after die-cutting. Along the conveying direction of the conveying unit, the waste removal structure is located behind the die-cutting unit.

[0034] When die-cutting copper foil backing adhesive, the pressed copper foil and backing adhesive are first conveyed to the die-cutting unit by a set of conveying units for die-cutting. After die-cutting, the copper foil backing adhesive is stripped of the edge waste by the waste removal structure and the waste is wound up. After the waste is separated, the copper foil backing adhesive is then conveyed to the next process by the conveying unit located at the end of the conveying direction.

[0035] like Figures 5 to 11 and Figure 13 The waste discharge structure includes a mounting base 20 connected to a support beam 11. A telescopic member 21 is located below the mounting base 20 and is mounted on the frame 10. The output end of the telescopic member 21 moves in a direction parallel to the length of the frame 10. A lifting seat 22 is connected to the output end of the telescopic member 21. A support shaft 23 is mounted on the lifting seat 22, and its length is perpendicular to the length of the frame 10. A stripping blade 24 is mounted on the outer surface of the support shaft 23. Two mounting plates 25 are symmetrically connected to the outer surface of the support shaft 23. The mounting plates 25 and the stripping blades 24 are symmetrically distributed about the central axis of the support shaft 23. A film adjustment assembly is mounted on the mounting plate 25, and a protective film 27 is mounted on the film adjustment assembly. A film adjustment assembly is arranged around the peeling blade 24 and attached to the end of the peeling blade 24. The film adjustment assembly is used to attach the unadhesive film to the end of the peeling blade 24. A pre-peeling blade 26 is arranged below the peeling blade 24. A pre-film 28 is arranged on the end surface of the pre-peeling blade 26. A linkage state switching assembly is arranged between the pre-peeling blade 26, the mounting base 20 and the mounting plate 25. The linkage state switching assembly is used to connect the peeling blade 24 and the pre-peeling blade 26. When the peeling blade 24 is in contact with the copper foil backing adhesive, the pre-peeling blade 26 is located above the copper foil backing adhesive and is not in contact with the copper foil backing adhesive. When the peeling blade 24 is not in contact with the copper foil backing adhesive, the pre-peeling blade 26 is in contact with the copper foil backing adhesive, thereby ensuring the normal operation of the waste stripping work.

[0036] Under normal operating conditions, the peeling blade 24 contacts the copper foil adhesive. After a period of time, the telescopic component 21 is activated, and its output end drives the lifting seat 22 to move upward, which in turn drives the support shaft 23 and the peeling blade to move upward, causing the peeling blade 24 to separate from the copper foil adhesive. During the upward movement of the peeling blade 24, the linkage state switching component causes the pre-peeling blade 26 to move downward and the pre-film 28 to contact the material. Then, the film adjustment component moves the protective film 27 without residual adhesive to the end position of the peeling blade 24, and separates the protective film 27 with residual adhesive from the end of the peeling blade 24. Then, the telescopic component 21 is activated, and its output end drives the lifting seat 22 to move downward, so that the adjusted protective film 27 re-contacts the copper foil adhesive. At this time, the pre-film 28 separates from the copper foil adhesive, thus continuing the die-cutting operation of the copper foil adhesive. During this process, there is no need to stop the machine for replacement, ensuring that the entire process is uninterrupted.

[0037] It should be noted that the mounting base 20 has a through hole for the output end of the telescopic component 21 to move, ensuring the smooth movement of the output end of the telescopic component 21. The peeling knife 24 and the pre-peeling knife 26 are both set at an angle. A pressure roller is set on the back side of the peeling knife 24 near the end of the peeling knife 24. The pressure roller is used to make the protective film 27 wrap around the end of the peeling knife 24.

[0038] The film adjustment assembly includes two rotating shafts 30 rotatably mounted on the mounting plate 25. Each rotating shaft 30 has a connecting sleeve 31 threadedly connected to its outer surface. Each connecting sleeve 31 has a connecting bolt 32 threadedly connected to its outer surface. Each connecting sleeve 31 has a roller 33 inserted inside. Each roller 33 has a connecting hole 331 on its outer surface. The connecting bolt 32 is adapted to the size of the connecting hole 331. Each roller 33 has a take-up roller 34 connected to its end. A drive structure is provided on the mounting plate 25 to drive the two rollers 33 to rotate simultaneously.

[0039] After the drive structure is started, it drives the two rotating shafts 30 to rotate synchronously, which in turn drives the two roller shafts 33 and the winding rollers 34 at the ends to work together. One winding roller 34 performs the winding operation of the protective film 27, and the other winding roller 34 performs the unwinding operation of the protective film 27 synchronously. Through the cooperation of winding and unwinding, the protective film 27 is refreshed cyclically, always providing the peeling knife 24 with a non-adhesive bonding film. The connecting bolt 32 is inserted into the connecting hole 331 of the roller shaft 33 to fix and lock the connecting sleeve 31 and the roller shaft 33, so that the rotating shaft 30 and the roller shaft 33 rotate synchronously, and the roller shaft 33 can be easily replaced.

[0040] The drive structure includes a drive component 35 mounted on a mounting plate 25. The output end of the drive component 35 is connected to a rotating shaft 30, and gears 36 are connected to both rotating shafts 30. The two gears 36 mesh with each other, and the transmission ratio between the two gears 36 is 1:1, so that one roller shaft 33 performs a winding operation while the other roller shaft 33 performs an unwinding operation.

[0041] After the drive unit 35 is started, its output end directly drives a connected rotating shaft 30 to rotate. This rotating shaft 30 is driven by a gear 36 on it, which meshes with a gear 36 on another rotating shaft 30. Since the transmission ratio of the two gears 36 is 1:1, the other rotating shaft 30 rotates in the opposite direction at the same speed. The two rotating shafts 30 are respectively fixed to the corresponding roller shafts 33 through connecting sleeves 31. Therefore, the two roller shafts 33 rotate synchronously in the opposite direction with the rotating shafts 30, thereby realizing the coordinated action of one take-up roller 34 taking up and the other take-up roller 34 unwinding, and the length of the protective film 27 being taken up and unwound is always consistent.

[0042] like Figures 8 to 10 The linkage state switching component includes a clamping mounting plate 40 connected to the mounting plate 25. At least one pressure rod 41 is fixedly mounted on the clamping mounting plate 40. Clamping plates 42 are symmetrically connected to the mounting base 20. Support rods 43 are mounted on the clamping plates 42. At least one sleeve 44 is rotatably disposed on the outer surface of the support rod 43. A pressure plate 45 and a rotating rod 46 are connected to the outer surface of the sleeve 44. The pressure plate 45 and the rotating rod 46 are symmetrically distributed about the axis of the sleeve 44. The positions of the pressure plate 45 and the pressure rod 41 correspond one-to-one. Both the pressure plate 45 and the rotating rod 46 are inclined, and the included angle between the pressure plate 45 and the rotating rod 46 is an obtuse angle. An extension rod 47 is slidably arranged inside the rotating rod 46. The end of the extension rod 47 is connected to the pre-peeling knife 26. A locking screw 48 is threadedly connected to the outer surface of the rotating rod 46. The locking screw 48 is used to lock the extension rod 47 so that the position of the extension rod 47 is fixed. A fixing ring 49 is connected to the outer surface of the support rod 43. A torsion spring 410 is connected to one side of the fixing ring 49. The end of the torsion spring 410 is connected to the sleeve 44.

[0043] When the pre-film 28 is not in contact with the copper foil adhesive, the torsion spring 410 is in a pre-torsion energy storage state, and the bottom end of the pressure rod 41 is in contact with the pressure plate 45. When the pre-film 28 needs to be used, the lifting seat 22 moves upward. At this time, the mounting plate 25 drives the clamp mounting plate 40 and the pressure rod 41 to move synchronously, so that the pressure rod 41 moves upward and no longer squeezes the pressure plate 45. The torsion spring 410 releases stress and causes the sleeve 44 to rotate. At this time, the pressure plate 45 rotates upward and causes the rotating rod 46 to drive the extension rod 47 and the pre-peeling knife 26 to rotate downward, so that the pre-film 28 is attached to the copper foil adhesive. The pre-film 28 is then used, and the protective film 27 is renewed through the drive structure. After the renewal is completed, the extension rod 47 moves downward and squeezes the pressure plate 45. At this time, the sleeve 44 rotates in the opposite direction and separates the pre-film 28 from the copper foil adhesive.

[0044] The initial position of the pre-peeling blade 26 can be adjusted by the extension rod 47, and the position of the pre-peeling blade 26 can be fixed by the locking screw 48.

[0045] It should be noted that when the preparatory film 28 is not used, the bottom of both the preparatory film 28 and the pressure plate are located above the copper foil backing adhesive during the movement, and there is a gap between the preparatory film 28 and the copper foil backing adhesive to avoid interference between them. At least two retaining rings are connected to the outer surface of the support rod 43, and the sleeve 44 is located between the two retaining rings, with the end of the sleeve 44 in contact with the retaining rings. The two retaining rings are used to limit the sleeve 44 to prevent axial movement of the sleeve 44.

[0046] The clamping plate 42 has multiple insertion holes 421 and clamping grooves 422. The insertion holes 421 and clamping grooves 422 are connected. The diameter of the support rod 43 is matched with the diameter of the insertion holes 421. The clamping grooves 422 are located at the center of the insertion holes 421. Multiple through holes 423 are provided on the side adjacent to the clamping plate 42. The through holes 423 penetrate the clamping plate 42 and are connected to the insertion holes 421. The through holes 423 and the insertion holes 421 are one-to-one. The through holes 423 are threadedly connected to the screw rods 411. The end of the screw rods 411 is connected to a locking handle.

[0047] After inserting the support rod 43 into the insertion hole 421 of the clamping plate 42, rotate the locking handle to drive the screw 411 to move axially along the through hole 423. The end of the screw 411 gradually presses against the surface of the support rod 43. The support rod 43 is fixed on the clamping plate 42 by pressure locking. When it is necessary to remove the support rod 43, rotate the locking handle in the opposite direction. The screw 411 moves in the opposite direction and releases the pressure on the support rod 43, so that the support rod 43 can be taken out and removed.

[0048] like Figure 5The lifting seat 22 has an insertion hole 221 and a clamping groove 222 on one side. The clamping groove 222 is connected to the insertion hole 221, and the diameter of the support shaft 23 is matched with the diameter of the insertion hole 221. A screw 29 is threadedly connected to one side of the lifting seat 22. The screw 29 is used to clamp the support shaft 23.

[0049] After inserting the support shaft 23 into the second insertion hole 221 of the lifting seat 22, rotate the second screw 29. The end of the second screw 29 extends into the second clamping groove 222 and presses the support shaft 23. The clamping force fixes the support shaft 23 on the lifting seat 22. When it is necessary to adjust the position of the support shaft 23 or disassemble it, rotate the second screw 29 in the opposite direction. The second screw 29 releases the pressure on the support shaft 23, and the support shaft 23 can be moved to adjust its position or removed for disassembly.

[0050] A stand 50 is installed on the top of the frame 10, and a winding structure 51 is installed on the stand 50. The winding structure 51 is located above the frame 10. The winding structure 51 is used to wind up the waste material discharged by the waste discharge structure. Therefore, it belongs to the prior art, and its structure and working principle are not described in detail.

[0051] like Figure 12 The conveying unit includes a roller seat 52 mounted on the top of the frame 10. A rotating roller 53 is rotatably mounted on the roller seat 52. A slide seat 54 is slidably mounted on the roller seat 52. A movable roller 55 is rotatably mounted on one side of the slide seat 54. The length directions of the movable roller 55 and the rotating roller 53 are perpendicular to the length direction of the frame 10. A pressure spring 56 and a pull rod 57 are connected to the top of the slide seat 54. The pressure spring 56 is connected to the roller seat 52, and the pull rod 57 is slidably connected to the roller seat 52. The pressure spring 56 ensures the pressure on the copper foil adhesive, so that the copper foil and the adhesive are tightly bonded.

[0052] After the drive unit is started, it drives one of the connected rollers 53 to rotate. This roller 53 drives another roller 53 to rotate synchronously through a belt drive or chain drive structure. The two rollers 53 work together to realize the power output for material conveying.

[0053] The two conveying units contain rollers 53 connected together by belt drive or chain drive and rotate synchronously. One of the rollers 53 is connected to a drive unit, which drives the roller 53 to rotate and causes both rollers 53 to rotate simultaneously through transmission.

[0054] Along the copper foil adhesive conveying direction, a limiting guide structure is connected to the conveying unit located at the initial conveying position. The limiting guide structure is used to guide the copper foil adhesive. The limiting guide structure includes a limiting support plate 60 connected to the roller seat 52. Multiple limiting shafts 61 are provided on the limiting support plate 60. The copper foil adhesive is wrapped around multiple sets of limiting shafts 61 and arranged in a wave-like tortuous tension to achieve buffering and tension balance of the copper foil adhesive. Two limiting slide plates 62 are slidably provided on the outer surface of the limiting shafts 61. Each limiting slide plate 62 is threaded with a locking screw 63. The locking screw 63 corresponds to the position of the limiting shaft 61 and is used to lock the position of the limiting slide plate 62.

[0055] like Figure 12 A horizontal plate 64 is connected to the roller seat 52, and a guide roller 65 is provided on the horizontal plate 64. The length directions of the guide roller 65 and the limiting shaft 61 are perpendicular to the length direction of the frame 10. A card seat 66 is connected to one side of the limiting support plate 60, and a fixed shaft 67 is connected to the card seat 66. Two moving rings 68 are slidably connected to the outer surface of the fixed shaft 67. A limiting piece 69 is connected to the outer surface of the moving ring 68. A locking screw 610 is threadedly connected to one side of the moving ring 68. The locking screw 610 is used to lock the position of the moving ring 68.

[0056] The sliding limit plate 62 can adjust the distance between the two limit plates 62. After adjusting to the appropriate material width, it is locked and fixed by locking screw 63 to achieve the initial lateral limit of the material. The sliding moving ring 68 can adjust the distance between the two limit pieces 69. After adjusting to the appropriate material width, the position of the moving ring 68 is locked by locking screw 610. The limit pieces 69 block the edge of the material and work with the limit plate 62 to achieve precise limit of the material during the material conveying process to prevent the material from deviating. The limit pieces 69 overlap the outer surface of the guide roller 65 and can limit the copper foil backing adhesive that contacts the guide roller 65.

[0057] like Figure 14 The die-cutting unit includes a lower die base 70 mounted on the frame 10. A telescopic component 71 is provided on the lower die base 70. The output end of the telescopic component 71 is connected to an upper die base 72. A die-cutting pad is provided on the lower die base 70. The die-cutting unit is a mature existing technology, so the specific structure and working principle of the die-cutting unit are not described in detail.

[0058] A copper foil adhesive die-cutting process includes the following steps: S1. The conveying unit, in conjunction with the limiting and guiding structure, limits the copper foil backing adhesive and conveys the copper foil backing adhesive material to the die-cutting unit. S2. The die-cutting unit cuts the copper foil backing adhesive into shape and then conveys it to the peeling knife 24 station. The peeling knife 24, together with the protective film 27, contacts the material and peels off the edge waste after die-cutting. At the same time, the winding structure 51 winds up the edge waste. S3. After a period of time, the telescopic component 21 drives the lifting seat 22, the support shaft 23 and the peeling knife 24 to move upward, so that the peeling knife 24 is separated from the copper foil backing material. At this time, the mounting plate 25 moves upward in sync, and the torsion spring 410 releases torque to drive the sleeve 44 to rotate. Through the rotating rod 46 and the extension rod 47, the preparatory peeling knife 26 is driven downward, so that the preparatory film 28 adheres to the material and takes over the peeling knife 24 to continuously discharge waste. S4 and drive component 35 are driven by gear 36 to drive rotating shaft 30, connecting sleeve 31, roller shaft 33 and winding roller 34 to rotate synchronously in opposite directions, unwinding on one side and winding on the other side, so as to realize the travel and renewal of protective film 27, and deliver clean new film to the bonding position at the end of peeling knife 24. S5. The telescopic component 21 drives the peeling knife 24 to move down and reset, the new protective film 27 participates in the waste discharge again, and at the same time the pressure rod 41 presses down the pressure plate 45 again, driving the sleeve 44 to rotate, and the peeling knife 26 and the film 28 are raised and reset to standby. S6. After waste removal, the product is conveyed to the next workstation via the conveyor unit to complete the entire die-cutting operation.

[0059] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0060] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0061] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A copper foil adhesive die-cutting device, comprising a support beam, characterized in that, Both ends of the supporting beam are connected to conveying units, which are used to convey copper foil backing adhesive and also include: The mounting base is connected to the support beam. A telescopic component is provided below the mounting base, and the output end of the telescopic component is connected to a lifting seat. A support shaft is mounted on a lifting seat. A stripping blade is installed on the outer surface of the support shaft, and two mounting plates are symmetrically connected to the outer surface of the support shaft. A film adjustment assembly is mounted on a mounting plate and has a protective film on it. The protective film surrounds the peeling blade and is attached to the end of the peeling blade. The film adjustment assembly is used to make the film without adhesive buildup adhere to the end of the peeling blade. The film adjustment assembly includes a rotating shaft, a connecting sleeve, a connecting bolt, a roller, a connecting hole, a take-up roller, and a drive structure. There are two rotating shafts, which are symmetrically mounted on the mounting plate. The number of connecting sleeves is the same as the number of rotating shafts. The connecting sleeves are threadedly connected to the rotating shafts and correspond one-to-one. The number of connecting bolts is the same as the number of connecting sleeves. The connecting bolts are threadedly connected to the outer surface of the connecting sleeves. The number of rollers is the same as the number of connecting sleeves. The rollers are inserted into the connecting sleeves and correspond one-to-one. The connecting hole is opened on the outer surface of the roller and the connecting bolt is adapted to the connecting hole. The number of take-up rollers is the same as the number of rollers. The take-up roller is fixedly connected to the end of the roller. The drive structure is mounted on the mounting plate and is used to drive the rotating shaft to rotate. A pre-peeling blade is positioned below the peeling blade, and a pre-film is provided on the end surface of the pre-peeling blade; A linkage state switching component is installed between the pre-peeling blade, the mounting base, and the mounting plate. This component enables the peeling blade to connect with the pre-peeling blade. The linkage state switching component includes a clamping plate mounting plate, a pressure rod, a clamping plate, a support rod, a sleeve, a pressure plate, a rotating rod, an extension rod, a locking screw, a fixing ring, and a torsion spring. There is one clamping plate mounting plate, fixedly connected to the mounting plate. There is at least one pressure rod, fixedly connected to the clamping plate mounting plate. There are two clamping plates, symmetrically connected to the mounting base. The support rod is installed between the two clamping plates. There is at least one sleeve, rotatably mounted on the outer surface of the support rod. The pressure plate and rotating rod are symmetrically connected to the outer surface of the sleeve. The extension rod is slidably mounted inside the rotating rod, with its end fixedly connected to the pre-peeling blade. A locking screw is threaded onto the outer surface of the rotating rod. The fixing ring is installed on the outer surface of the support rod. One end of the torsion spring is connected to the fixing ring, and the other end is connected to the sleeve. The die-cutting unit, mounted on the support beam, is used for die-cutting the copper foil backing adhesive. The winding structure is located above the supporting beam and is used to wind up the waste material discharged by the waste discharge structure.

2. The copper foil adhesive die-cutting device according to claim 1, characterized in that, The drive structure includes a drive component and gears. The drive component is fixedly mounted on the mounting plate. The output end of the drive component is connected to a rotating shaft. There are two gears, which are fixedly connected to the rotating shaft and correspond one-to-one. The two gears mesh with each other and the transmission ratio is 1:

1.

3. The copper foil adhesive die-cutting device according to claim 2, characterized in that, The clamping plate has multiple insertion holes and clamping grooves. The insertion holes and clamping grooves are connected. The diameter of the support rod is matched with the diameter of the insertion holes. The clamping groove is located at the center of the insertion holes. Multiple through holes are provided on the side adjacent to the clamping plate. The through holes penetrate the clamping plate and are connected to the insertion holes. The through holes correspond one-to-one with the insertion holes. A screw is threaded into the through holes.

4. The copper foil adhesive die-cutting device according to claim 3, characterized in that, The lifting seat has a second insertion hole and a second clamping groove on one side. The second clamping groove is connected to the second insertion hole, and the diameter of the support shaft is matched with the diameter of the second insertion hole. A second screw is threadedly connected to one side of the lifting seat.

5. The copper foil adhesive die-cutting device according to claim 4, characterized in that, The conveying unit includes a roller seat, a rotating roller, a sliding seat, a movable roller, a pressure spring, and a pull rod. The rotating roller is rotatably mounted on the roller seat, the sliding seat is slidably mounted on the roller seat, the movable roller is rotatably connected to the sliding seat, one end of the pressure spring is connected to the sliding seat, the other end of the pressure spring is connected to the roller seat, one end of the pull rod is connected to the sliding seat, and the pull rod is slidably connected to the roller seat.

6. The copper foil adhesive die-cutting device according to claim 5, characterized in that, The roller seat is connected to a limiting guide structure, which is used to guide the copper foil backing adhesive. The limiting guide structure includes a limiting support plate, a limiting shaft, and a limiting slide plate. The limiting support plate is installed on one side of the roller seat. There are multiple limiting shafts. The copper foil backing adhesive is wrapped around multiple sets of limiting shafts and arranged in a wave-like, meandering tension. There are two limiting slide plates. The two limiting slide plates are slidably set on the outer surface of the limiting shaft. Each limiting slide plate is threaded with two locking screws.

7. The copper foil adhesive die-cutting device according to claim 6, characterized in that, A horizontal plate is connected to the roller seat, and a guide roller is provided on the horizontal plate. The length directions of the guide roller and the limiting shaft are perpendicular to the length direction of the supporting beam. A card seat is connected to one side of the limiting support plate, and a fixed shaft is connected to the card seat. Two moving rings are slidably connected to the outer surface of the fixed shaft. A limiting piece is connected to the outer surface of the moving ring, and a locking screw is threaded to one side of the moving ring.

8. A copper foil adhesive die-cutting process, applied to the copper foil adhesive die-cutting apparatus described in claim 7, characterized in that, It includes the following steps: S1. The conveying unit, in conjunction with the limiting and guiding structure, limits the copper foil backing adhesive and conveys the copper foil backing adhesive material to the die-cutting unit. S2. The die-cutting unit cuts the copper foil backing into shape and then conveys it to the peeling knife station. The peeling knife, together with the protective film, contacts the material and peels off the edge waste after die-cutting. At the same time, the winding structure winds up the edge waste. S3. After a period of time, the telescopic component drives the lifting seat, support shaft and peeling knife to move upward, so that the peeling knife is separated from the copper foil backing material. At this time, the mounting plate moves upward synchronously, the torsion spring releases the torque to drive the sleeve to rotate, and drives the pre-peeling knife to move downward through the rotating rod and extension rod, so that the pre-film adheres to the material and takes over the peeling knife to continuously discharge waste. S4. The drive unit drives the rotating shaft, connecting sleeve, roller shaft and take-up roller to rotate synchronously in opposite directions through gear meshing. One side unwinds and the other side rewinds, realizing the travel and renewal of the protective film. The clean new film is delivered to the bonding position at the end of the peeling knife. S5. When the telescopic component moves the peeling knife downward to reset, the new protective film re-participates in the waste discharge. At the same time, the pressure rod presses down on the pressure plate again, driving the sleeve to rotate, and the peeling knife and the prepared film are raised and reset to standby. S6. After waste removal, the product is conveyed to the next workstation via the conveyor unit to complete the entire die-cutting operation.

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