Film stripping device for flexible circuit board and application method

Abstract

The invention relates to the technical field of circuit board film stripping, and discloses a film stripping device for a flexible circuit board, the film stripping device comprises a base and a conveying belt, hollow plates are arranged on the left and right sides of the front and rear ends of the top of the base, a fixing mechanism is arranged at the bottom of the base, the fixing mechanism comprises a hollow box, and the hollow box is fixedly connected to the top of the inner side of the base. A movable plate is slidably connected to the inner side of the hollow box, first supporting plates are fixedly connected to the left side and the right side of the bottom of the movable plate, Z-shaped grooves are formed in the outer sides of the first supporting plates, inserting columns are slidably connected to the inner sides of the Z-shaped grooves, and connecting plates are fixedly connected to the front end and the rear end of the top of the movable plate. The movable plate drives the connecting plate to move downwards, so that the multiple hollow plates simultaneously drive the mounting base to move downwards and drive the pressing roller to fix the flexible circuit board, and through the fixing design that the left side and the right side are separated, a film cannot be shielded when the flexible circuit board is subjected to film stripping work.

Description

Technical Field

[0001] The present invention relates to the technical field of circuit board stripping, in particular to a stripping device for a flexible circuit board and an application method thereof. Background Art

[0002] A flexible printed circuit board is a circuit board made of a flexible insulating substrate such as polyimide or polyester film. It is thin, bendable, and fold-resistant. It is mainly used to solve the wiring problems of traditional rigid printed circuit boards in scenarios where space is limited, dynamic bending, or lightweight is required. It can not only meet the compact structure requirements of precision electronic equipment, but also adapt to complex assembly environments.

[0003] In the production process of flexible circuit boards, laminating electromagnetic films and cover film materials is a common process. They provide electromagnetic shielding, protect copper foil, pave the way for subsequent surface treatment, and play a role in solder resistance in SMT. However, after the film material is laminating and the adhesive is cured, the peeling operation of the release film or cover film has traditionally relied on manual tearing, which is difficult to meet the needs of large-scale production.

[0004] Currently, the film stripping device for flexible circuit boards on the market mainly consists of a conveyor belt, a driver, and a stripper. During use, the conveyor belt transports the flexible circuit board to the film stripping area, and the driver drives the stripper to contact the film on the flexible circuit board, thereby tearing off the film on the top of the flexible circuit board. However, during the conveying process, the flexible circuit board may produce position deviations, resulting in displacement of the posture, making it difficult to ensure stable film stripping accuracy. To solve the above problems, the existing technology limits the position of the flexible circuit board on the conveyor belt by adding fixed baffles on both sides, thereby improving the film stripping accuracy of the flexible circuit board. However, when using this device, due to the size of the flexible circuit board being too large or too small, the positioning plates are not convenient to dynamically adjust according to the size of the flexible circuit board, resulting in the inability to use flexible circuit boards of different models. The existing technology adjusts the spacing of the positioning plates by adding an adjustment mechanism. However, during the film stripping operation, the flexible circuit board needs to contact the positioning plates to ensure the accurate position of the flexible circuit board. Stripping residue will appear at the contact point between the flexible circuit board and the positioning plates. In addition, the flexible circuit board will be displaced by the traction during film stripping, which reduces the practicality of the device and fails to meet the needs of users. Summary of the Invention

[0005] In response to the deficiencies of the prior art, the present invention provides a film stripping device and application method for a flexible circuit board, which solves the problem of film residue and movement of the flexible circuit board when the circuit board film stripping device uses a positioning plate to position the flexible circuit board.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a film stripping device for a flexible circuit board, comprising a base and a conveyor belt, wherein hollow plates are provided on the front, rear, left and right sides of the top of the base, a fixing mechanism is provided at the bottom of the base, and the fixing mechanism is used to facilitate fixing the flexible circuit board, a positioning mechanism is provided on the inner side of the hollow plate, and the positioning mechanism is used to facilitate providing positioning guidance for the flexible circuit board, and a film stripping mechanism is provided on the upper side of the base, and the film stripping mechanism is used to facilitate stripping the film of the flexible circuit board;

[0007] The fixing mechanism includes a hollow box, which is fixedly connected to the inner top of the base, and a movable plate is slidably connected to the inner side of the hollow box. The left and right sides of the bottom of the movable plate are fixedly connected to the first support plate, and a Z-shaped groove is provided on the outer side of the first support plate. The inner side of the Z-shaped groove is slidably connected to a plug-in column, and the front and rear ends of the top of the movable plate are fixedly connected to the connecting plate, and the top of the connecting plate passes through the hollow box and is fixedly connected to the corresponding hollow plate. A driving assembly is provided on the inner side of the hollow box, and a rolling assembly is provided on the bottom of the hollow plate.

[0008] Preferably, the positioning mechanism includes a bidirectional threaded rod, and the two bidirectional threaded rods are respectively rotatably connected to the right walls of the two hollow plates on the right side, and the left ends of the bidirectional threaded rods pass through the corresponding hollow plates in sequence. The left and right sides of the outer walls of the bidirectional threaded rods are threadedly connected to the first slider, and one side of the first slider is rotatably connected to the connecting rod, and a through groove is provided at the bottom of the hollow plate, and the second slider is slidably connected to the inner side of the through groove, one end of the connecting rod is rotatably connected to the second slider, and the bottom of the second slider is fixedly connected to the positioning plate, and the right walls of the two hollow plates on the right side are provided with a control component.

[0009] Preferably, the film stripping mechanism includes a bracket, which is fixedly connected to the outer side of the base, and the inner top of the bracket is fixedly connected to a hollow tube, and the top of the bracket is fixedly connected to a hydraulic rod, and the bottom end of the hydraulic rod passes through the bracket and the hollow tube in sequence and is rotatably connected to a movable block, and the front side of the movable block is fixedly connected to a connecting column, and a curved groove is provided on the outer side of the hollow tube, and the outer side of the connecting column is slidably connected to the curved groove, and the front side of the connecting column is fixedly connected to a second support plate, and an adsorption component is provided on the bottom front side of the second support plate.

[0010] Preferably, the driving assembly includes a first motor, which is fixedly connected to the front side of the hollow box. The output end of the first motor passes through the hollow box and is fixedly connected to a screw rod. The outer side of the screw rod is threadedly connected to a sliding seat, and the left and right sides of the sliding seat are respectively fixedly connected to corresponding plug-in columns.

[0011] Preferably, the rolling assembly includes a mounting seat, and a plurality of the mounting seats are fixedly connected to one side of the bottom of the corresponding hollow plate at equal distances, and the bottoms of the plurality of mounting seats are rotatably connected to a pressure roller.

[0012] Preferably, the control component includes a shell, which is fixedly connected to the right wall of the two hollow plates on the right side. The front side of the shell is rotatably connected to a rotating rod, the thickness of the rotating rod passes through the shell, and the front and rear sides of the outer wall of the rotating rod are fixedly connected to a driving bevel gear. The right end of the bidirectional threaded rod is fixedly connected to a driven bevel gear, and the driving bevel gear is meshed with the driven bevel gear.

[0013] Preferably, the adsorption assembly includes an adsorption head, which is fixedly connected to the bottom front side of the second support plate, and the top end of the adsorption head passes through the second support plate and is connected to a negative pressure interface.

[0014] Preferably, the driving assembly further comprises a guide rod, the guide rod being fixedly connected to the lower middle portion of the inner side of the hollow box, and the outer side of the guide rod being slidably connected to the sliding seat.

[0015] Preferably, the left and right sides of the top of the base are rotatably connected to drive rollers, the two drive rollers are connected through the conveyor belt transmission, and a second motor is fixedly connected to the top left side of the front wall of the base, and the output end of the second motor passes through the base and is fixedly connected to the left drive roller.

[0016] The application method of the film stripping device for a flexible circuit board comprises the following steps:

[0017] S1. The first motor drives the screw to rotate, and the rotation of the screw drives the sliding seat to move, and the sliding seat drives the plug-in column to move. When the plug-in column moves, it can pull the first support plate downward through the Z-shaped slot. When the first support plate moves, it can drive the connecting plate downward through the movable plate, thereby driving the hollow plate downward. The hollow plate drives the mounting seat downward, so that the pressure roller can contact the flexible circuit board, thereby fixing the flexible circuit board. In addition, the hollow plates on both sides ensure that the flexible circuit board at the stripping position will not be blocked by other components during film stripping;

[0018] S2. Rotating the rotating rod can drive the active bevel gear to rotate. Since the driven bevel gear is meshed with the active bevel gear, when the active bevel gear rotates, the driven bevel gear will drive the bidirectional threaded rod to rotate. The rotation of the bidirectional threaded rod will drive the corresponding first slider to move. When the first slider moves, it can push the second slider to move through the connecting rod. The second slider will drive the positioning plate to move. By arranging the threads of the front and rear bidirectional threaded rods relative to each other, the front and rear positioning plates will move toward each other at the same time, so as to position flexible circuit boards of different sizes.

[0019] S3, the hydraulic rod will push the movable block to move downward, and the movable block can drive the second support plate to move downward through the connecting column, so that the adsorption head contacts the flexible circuit board, thereby adsorbing the film on the flexible circuit board, and then the hydraulic rod will drive the movable block to move upward, so that the adsorption head moves upward to peel off the film, and when the movable block moves to the upper middle part of the hollow tube, the connecting column will be pushed by the curved groove and slide inside the curved groove, driving the second support plate to rotate, so that the adsorption head can move to the rear side of the base, and the adsorption head will stop adsorbing the film, and the film will fall to the rear side of the device, completing the automatic peeling and unloading of the film;

[0020] S4. The second motor will drive the left driving roller to rotate. When the left driving roller rotates, it will drive the conveyor belt to operate, thereby driving the flexible circuit board on the top to move. The flexible circuit board will be located in the middle of the conveyor belt through the positioning plates on both sides, so that the position of the flexible circuit board is accurate. After the adsorption head is used to work on the film, the conveyor belt will continue to drive the flexible circuit board to move, realizing automatic loading and unloading of the flexible circuit board.

[0021] The present invention provides a film stripping device and application method for a flexible circuit board.

[0022] Beneficial effects:

[0023] 1. The present invention drives the screw to rotate by the first motor, drives the sliding seat to move, and the sliding seat drives the connecting column to move, thereby pushing the first support plate to move downward through the Z-shaped groove, and then the movable plate drives the connecting plate to move downward, so that multiple hollow plates simultaneously drive the mounting seat to move downward, driving the pressure roller to fix the flexible circuit board, and through the fixed design with left and right sides separated, the film of the flexible circuit board will not be blocked by the fixing mechanism when the film is stripped, so that the flexible circuit board will not move during the film stripping operation, and no film residue will appear, thereby improving the practicality of the device and meeting the needs of users.

[0024] 2. The present invention drives the master and slave bevel gears to rotate by rotating the rod, and drives the bidirectional threaded rod to rotate through the meshing transmission of the active bevel gear and the driven bevel gear, thereby driving the first slider to move. The first slider can push the second slider to move through the connecting rod, thereby driving the positioning plate to move. Since the threads of the front and rear bidirectional threaded rods are relatively arranged, the front and rear positioning plates will move toward each other at the same time, which can provide positioning for flexible circuit boards of different sizes, thereby improving the convenience of using the device.

[0025] 3. The present invention absorbs the film through the adsorption head, and then the hydraulic rod drives the movable block to move upward. The movable block can drive the second support plate to move upward through the connecting column. The adsorption head will move upward to tear off the film on the flexible circuit board. When the connecting column moves to the middle and upper part of the curved groove, it will be pushed by the curved groove to drive the second support plate to rotate, thereby driving the adsorption head to move to the back side of the base, so as to complete the automatic unloading of the film and reduce the workload of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A perspective view of the present invention;

[0027] Figure 2 It is a front view of the present invention;

[0028] Figure 3 It is a schematic diagram of the local structure of the present invention;

[0029] Figure 4 It is a partial structural cross-sectional view of the fixing mechanism of the present invention;

[0030] Figure 5 It is a partial structural cross-sectional view of the positioning mechanism of the present invention;

[0031] Figure 6 This is a partial structural breakdown diagram of the positioning mechanism of the present invention;

[0032] Figure 7 It is a partial structural schematic diagram of the film stripping mechanism of the present invention;

[0033] Figure 8 This is a partial structural exploded view of the film stripping mechanism of the present invention;

[0034] Figure 9 It is a partial structural cross-sectional view of the present invention.

[0035] Among them, 1. Base; 2. Fixing mechanism; 21. Hollow box; 22. Movable plate; 23. First support plate; 24. Z-shaped groove; 25. Plug column; 26. Connecting plate; 27. Drive assembly; 271. First motor; 272. Screw; 273. Sliding seat; 274. Guide rod; 28. Rolling assembly; 281. Mounting seat; 282. Press roller; 3. Positioning mechanism; 31. Bidirectional threaded rod; 32. First slider; 33. Connecting rod; 34. Through slot; 35. Second slider; 36. Positioning plate; 37. Control assembly; 371. Housing; 372. Rotating rod; 373. Active bevel gear; 374. Driven bevel gear; 4. Film stripping mechanism; 41. Bracket; 42. Hollow tube; 43. Hydraulic rod; 44. Movable block; 45. Connecting column; 46. Curved groove; 47. Second support plate; 48. Adsorption assembly; 481. Adsorption head; 482. Negative pressure interface; 5. Hollow plate; 6. Driving roller; 7. Conveyor belt; 8. Second motor. DETAILED DESCRIPTION

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the present specification. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0037] Example 1:

[0038] Reference Figure 1 、 Figure 3 and Figure 4 The embodiment of the present invention provides a film stripping device for a flexible circuit board, including a base 1 and a conveyor belt 7. Hollow plates 5 are provided on the left and right sides of the top, front and rear ends of the base 1. A fixing mechanism 2 is provided at the bottom of the base 1. The fixing mechanism 2 is used to facilitate fixing the flexible circuit board. A positioning mechanism 3 is provided on the inner side of the hollow plate 5. The positioning mechanism 3 is used to facilitate positioning and guiding the flexible circuit board. A film stripping mechanism 4 is provided on the upper side of the base 1. The film stripping mechanism 4 is used to facilitate stripping the film of the flexible circuit board.

[0039] The fixing mechanism 2 includes a hollow box 21, which is fixedly connected to the inner top of the base 1, and a movable plate 22 is slidably connected to the inner side of the hollow box 21. The left and right sides of the bottom of the movable plate 22 are fixedly connected to the first support plate 23, and a Z-shaped groove 24 is provided on the outer side of the first support plate 23. The inner side of the Z-shaped groove 24 is slidably connected with a plug-in column 25. The plug-in column 25 can push the first support plate 23 to move through the Z-shaped groove 24. The front and rear ends of the top of the movable plate 22 are fixedly connected with a connecting plate 26. The top of the connecting plate 26 passes through the hollow box 21 and is fixedly connected to the corresponding hollow plate 5. The connecting plate 26 will drive the hollow plate 5 to move. A driving component 27 is provided on the inner side of the hollow box 21, and a rolling component 28 is provided on the bottom of the hollow plate 5. The driving component 2 7 includes a first motor 271, which is fixedly connected to the front side of the hollow box 21. The output end of the first motor 271 passes through the hollow box 21 and is fixedly connected to a screw rod 272. The first motor 271 drives the screw rod 272 to rotate. The outer side of the screw rod 272 is threadedly connected to a sliding seat 273. The rotation of the screw rod 272 drives the sliding seat 273 to move. The left and right sides of the sliding seat 273 are respectively fixedly connected to the corresponding plug-in column 25. The sliding seat 273 drives the plug-in column 25 to move. The rolling assembly 28 includes a mounting seat 281. A plurality of mounting seats 281 are respectively and equidistantly fixedly connected to one side of the bottom of the corresponding hollow plate 5. The bottoms of the plurality of mounting seats 281 are all rotatably connected to a pressure roller 282, which can fix the flexible circuit board.

[0040] Specifically, when using the device, the first motor 271 will drive the screw rod 272 to rotate. As the screw rod 272 rotates, it will further drive the sliding seat 273 to move. The movement of the sliding seat 273 will drive the plug-in column 25 to move, and through the Z-shaped groove 24, it can push the first support plate 23 to move downward. As the first support plate 23 descends, the movable plate 22 will also move accordingly, and will drive the connecting plate 26 to move downward together, thereby driving multiple hollow plates 5 to move downward synchronously. The descent of the hollow plate 5 will drive the mounting seat 281 to move downward, and then push the pressure roller 282 to apply pressure on the flexible circuit board, so that the flexible circuit board can be effectively fixed during the movement. In addition, through the separate fixing design on the left and right sides, it is ensured that the film on the flexible circuit board will not be blocked by the fixing mechanism 2 during the film stripping work, so that the film on the flexible circuit board can be thoroughly and cleanly peeled off during the film stripping process, thereby improving the practicality of the device and meeting the needs of users.

[0041] Reference Figure 3 、 Figure 5 and Figure 6The positioning mechanism 3 includes a bidirectional threaded rod 31, and the two bidirectional threaded rods 31 are respectively rotatably connected to the right walls of the two hollow plates 5 on the right side. The left ends of the bidirectional threaded rods 31 pass through the corresponding hollow plates 5 in sequence. The left and right sides of the outer walls of the bidirectional threaded rods 31 are threadedly connected with the first slider 32. When the bidirectional threaded rod 31 rotates, it can drive the first slider 32 to move. One side of the first slider 32 is rotatably connected to the connecting rod 33. A through groove 34 is provided at the bottom of the hollow plate 5. The inner side of the through groove 34 is slidably connected to the second slider 35. One end of the connecting rod 33 is rotatably connected to the second slider 35. When the first slider 32 moves, the second slider 35 can be pushed to move by the connecting rod 33. The bottom of the second slider 35 is fixedly connected to the positioning plate 36 , the second slider 35 will drive the positioning plate 36 to move, and a control component 37 is provided on the right wall of the two hollow plates 5 on the right side. The control component 37 includes a shell 371, and the shell 371 is fixedly connected to the right wall of the two hollow plates 5 on the right side. The front side of the shell 371 is rotatably connected to a rotating rod 372, and the rear end of the rotating rod 372 passes through the shell 371. The front and rear sides of the outer wall of the rotating rod 372 are fixedly connected to a driving bevel gear 373, and the rotating rod 372 will drive the driving bevel gear 373 to rotate. The right end of the bidirectional threaded rod 31 is fixedly connected to a driven bevel gear 374, and the driving bevel gear 373 is meshed with the driven bevel gear 374. When the driving bevel gear 373 rotates, the driven bevel gear 374 will drive the bidirectional threaded rod 31 to rotate;

[0042] Specifically, when flexible circuit boards of different sizes need to be used, the rotating rod 372 is rotated, and the rotating rod 372 will drive the active bevel gear 373 to start rotating. Since the active bevel gear 373 is engaged with the driven bevel gear 374, when the active bevel gear 373 rotates, the driven bevel gear 374 will also rotate accordingly, and further drive the bidirectional threaded rod 31 to rotate. The bidirectional threaded rod 31 will drive the first slider 32 to move. When the first slider 32 moves, it can push the second slider 35 to move through the connecting rod 33, and the second slider 35 will drive the positioning plate 36 to move. Since the front and rear bidirectional threaded rods 31 are relatively arranged, the positioning plates 36 on both sides will move toward each other at the same time, thereby accurately positioning flexible circuit boards of different sizes, thereby improving the convenience of using the device.

[0043] Reference Figure 2 、 Figure 7 and Figure 8The film stripping mechanism 4 includes a bracket 41, which is fixedly connected to the outside of the base 1. The top of the inner side of the bracket 41 is fixedly connected to a hollow tube 42. The top of the bracket 41 is fixedly connected to a hydraulic rod 43. The bottom end of the hydraulic rod 43 passes through the bracket 41 and the hollow tube 42 in sequence and is rotatably connected to a movable block 44. The hydraulic rod 43 drives the movable block 44 to move. The front side of the movable block 44 is fixedly connected to a connecting column 45. A curved groove 46 is provided on the outside of the hollow tube 42. The outer side of the connecting column 45 is slidably connected to the curved groove 46. The movement of the connecting column 45 is limited by the curved groove 46. The front side of the connecting column 45 is fixedly connected to the second support plate 47. The connecting column 45 will drive the second support plate 47 to move. The bottom front side of the second support plate 47 is provided with an adsorption assembly 48. The adsorption assembly 48 includes an adsorption head 481. The adsorption head 481 is fixedly connected to the bottom front side of the second support plate 47. The top of the adsorption head 481 passes through the second support plate 47 and is connected to the negative pressure interface 482. The second support plate 47 will drive the adsorption head 481 to move downward;

[0044] Specifically, when it is necessary to perform film work on the flexible circuit board, the hydraulic rod 43 will push the movable block 44 to move downward. During the movement of the movable block 44, the connecting column 45 can drive the second support plate 47 to move downward. As the second support plate 47 descends, the adsorption head 481 also moves downward, and the adsorption head 481 can adsorb the film. Then the hydraulic rod 43 will operate in the opposite direction, driving the movable block 44 to move upward, so that the film on the flexible circuit board is torn off, and when the movable block 44 drives the connecting column 45 to move to the middle and upper part of the curved groove 46, the connecting column 45 will be pushed by the curved groove 46, and then drive the second support plate 47 to rotate, so that the adsorption head 481 can move to the rear side of the base 1, and the adsorption head 481 will then release the adsorption state of the film, thereby completing the automatic unloading of the film, thereby improving the convenience of using the device.

[0045] Reference Figure 4 The driving assembly 27 further includes a guide rod 274, which is fixedly connected to the middle and lower portion of the inner side of the hollow box 21. The outer side of the guide rod 274 is slidably connected to the sliding seat 273, and the guide rod 274 is used to provide guidance for the sliding seat 273;

[0046] Specifically, a guide rod 274 is provided to guide the sliding seat 273 so that when the screw rod 272 rotates, the sliding seat 273 can move accordingly.

[0047] Reference Figure 1 、 Figure 2 and Figure 9, the left and right sides of the top of the base 1 are rotatably connected to the driving rollers 6, and the two driving rollers 6 are connected by a conveyor belt 7. The top left side of the front wall of the base 1 is fixedly connected to the second motor 8. The output end of the second motor 8 passes through the base 1 and is fixedly connected to the left driving roller 6. The second motor 8 can drive the driving roller 6 to rotate;

[0048] Specifically, the second motor 8 drives the left driving roller 6 to rotate, thereby driving the conveyor belt 7 to operate, and the conveyor belt 7 drives the flexible circuit board to move, thereby completing the automatic loading and unloading of the flexible circuit board.

[0049] Example 2:

[0050] The application method of the film stripping device for a flexible circuit board comprises the following steps:

[0051] S1. The first motor 271 drives the screw rod 272 to rotate. The rotation of the screw rod 272 drives the sliding seat 273 to move. The sliding seat 273 drives the plug-in column 25 to move. When the plug-in column 25 moves, it can pull the first support plate 23 downward through the Z-shaped groove 24. When the first support plate 23 moves, it can drive the connecting plate 26 downward through the movable plate 22, thereby driving the hollow plate 5 downward. The hollow plate 5 drives the mounting seat 281 downward, so that the pressure roller 282 can contact the flexible circuit board, thereby fixing the flexible circuit board. In addition, the hollow plates 5 on both sides ensure that the flexible circuit board at the stripping position will not be blocked by other components during film stripping.

[0052] S2. Rotating the rotating rod 372 can drive the driving bevel gear 373 to rotate. Since the driven bevel gear 374 is engaged with the driving bevel gear 373, when the driving bevel gear 373 rotates, the driven bevel gear 374 will drive the bidirectional threaded rod 31 to rotate. The rotation of the bidirectional threaded rod 31 will drive the corresponding first slider 32 to move. When the first slider 32 moves, it can push the second slider 35 to move through the connecting rod 33. The second slider 35 will drive the positioning plate 36 to move. By setting the threads of the front and rear bidirectional threaded rods 31 relative to each other, the front and rear positioning plates 36 will move toward each other at the same time, so as to position flexible circuit boards of different sizes.

[0053] S3, the hydraulic rod 43 will push the movable block 44 to move downward, and the movable block 44 can drive the second support plate 47 to move downward through the connecting column 45, so that the adsorption head 481 contacts the flexible circuit board, thereby adsorbing the film on the flexible circuit board, and then the hydraulic rod 43 will drive the movable block 44 to move upward, so that the adsorption head 481 moves upward to peel off the film, and when the movable block 44 moves to the upper middle part of the hollow tube 42, the connecting column 45 will be pushed by the curved groove 46, and slide inside the curved groove 46, driving the second support plate 47 to rotate, so that the adsorption head 481 can move to the rear side of the base 1, and the adsorption head 481 will stop adsorbing the film, and the film will fall to the rear side of the device, completing the automatic stripping and unloading of the film;

[0054] S4, the second motor 8 will drive the left drive roller 6 to rotate, and when the left drive roller 6 rotates, it will drive the conveyor belt 7 to operate, thereby driving the flexible circuit board on the top to move. The flexible circuit board will be located in the middle of the conveyor belt 7 through the action of the positioning plates 36 on both sides, so that the position of the flexible circuit board is accurate. After the adsorption head 481 is used to work the film, the conveyor belt 7 will continue to drive the flexible circuit board to move, realizing automatic loading and unloading of the flexible circuit board.

[0055] Working principle: When the device is used, the first motor 271 drives the screw rod 272 to rotate, and when the screw rod 272 rotates, it drives the sliding seat 273 to move, and the sliding seat 273 drives the plug-in column 25 to move. The plug-in column 25 can push the first support plate 23 to move downward through the Z-shaped groove 24, and the movable plate 22 will drive the connecting plate 26 to move downward, thereby driving multiple hollow plates 5 to move downward at the same time, and the hollow plate 5 will drive the mounting seat 281 to move downward, thereby driving the pressure roller 282 to squeeze the flexible circuit board, so that the flexible circuit board can be fixed when it moves, and through the fixed design with separated left and right sides, the film of the flexible circuit board will not be blocked by the fixing mechanism 2 when the film is stripped, ensuring that the film on the flexible circuit board can be peeled off cleanly;

[0056] When flexible circuit boards of different sizes need to be used, the rotating rod 372 is rotated, and the rotating rod 372 drives the active bevel gear 373 to rotate. Since the driven bevel gear 374 is engaged with the active bevel gear 373, the driven bevel gear 374 drives the bidirectional threaded rod 31 to rotate, thereby driving the corresponding first slider 32 to move. When the first slider 32 moves, the second slider 35 can be pushed to move through the connecting rod 33. The second slider 35 drives the positioning plate 36 to move. Since the threads of the front and rear bidirectional threaded rods 31 are arranged relative to each other, the front and rear positioning plates 36 will move toward each other at the same time, thereby providing positioning for flexible circuit boards of different sizes.

[0057] Finally, when it is necessary to perform film work on the flexible circuit board, the hydraulic rod 43 will push the movable block 44 to move downward. When the movable block 44 moves, the connecting column 45 can drive the second support plate 47 to move downward, thereby driving the adsorption head 481 to move downward to adsorb the film. Then the hydraulic rod 43 will drive the movable block 44 to move upward to tear off the film on the flexible circuit board. Because the connecting column 45 slides inside the curved groove 46, when the movable block 44 drives the connecting column 45 to move to the middle and upper part of the curved groove 46, the connecting column 45 is pushed by the curved groove 46, which will drive the second support plate 47 to rotate, thereby driving the adsorption head 481 to move to the back side of the base 1. At this time, the adsorption head 481 releases the adsorption of the film, and the automatic unloading of the film can be completed.

[0058] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A film stripping device for a flexible circuit board, comprising a base (1) and a conveyor belt (7), characterized in that: Hollow plates (5) are provided on the left and right sides of the front and rear ends of the top of the base (1); a fixing mechanism (2) is provided on the bottom of the base (1); the fixing mechanism (2) is used to facilitate fixing the flexible circuit board; a positioning mechanism (3) is provided on the inner side of the hollow plate (5); the positioning mechanism (3) is used to facilitate providing positioning guidance for the flexible circuit board; a film stripping mechanism (4) is provided on the upper side of the base (1); the film stripping mechanism (4) is used to facilitate film stripping of the flexible circuit board; The fixing mechanism (2) comprises a hollow box (21), wherein the hollow box (21) is fixedly connected to the inner top of the base (1), the inner side of the hollow box (21) is slidably connected to a movable plate (22), the left and right sides of the bottom of the movable plate (22) are fixedly connected to a first support plate (23), the outer side of the first support plate (23) is provided with a Z-shaped groove (24), the inner side of the Z-shaped groove (24) is slidably connected to a plug-in column (25), the front and rear ends of the top of the movable plate (22) are fixedly connected to a connecting plate (26), the top end of the connecting plate (26) passes through the hollow box (21) and is fixedly connected to the corresponding hollow plate (5), the inner side of the hollow box (21) is provided with a driving assembly (27), and the bottom of the hollow plate (5) is provided with a rolling assembly (28).

2. The film stripping device for a flexible circuit board according to claim 1, characterized in that: The positioning mechanism (3) comprises a bidirectional threaded rod (31), wherein the two bidirectional threaded rods (31) are rotatably connected to the right walls of the two hollow plates (5) on the right side respectively, and the left ends of the bidirectional threaded rods (31) sequentially penetrate the corresponding hollow plates (5), and the left and right sides of the outer walls of the bidirectional threaded rods (31) are both threadedly connected to first sliders (32), and one side of the first slider (32) is rotatably connected to a connecting rod (33), and a through groove (34) is provided at the bottom of the hollow plate (5), and a second slider (35) is slidably connected to the inner side of the through groove (34), and one end of the connecting rod (33) is rotatably connected to the second slider (35), and the bottom of the second slider (35) is fixedly connected to a positioning plate (36), and the right walls of the two hollow plates (5) on the right side are provided with a control component (37).

3. The film stripping device for a flexible circuit board according to claim 1, characterized in that: The film stripping mechanism (4) includes a bracket (41), the bracket (41) is fixedly connected to the outside of the base (1), the inner top of the bracket (41) is fixedly connected to a hollow tube (42), the top of the bracket (41) is fixedly connected to a hydraulic rod (43), the bottom end of the hydraulic rod (43) passes through the bracket (41) and the hollow tube (42) in sequence and is rotatably connected to a movable block (44), the front side of the movable block (44) is fixedly connected to a connecting column (45), the outer side of the hollow tube (42) is provided with a curved groove (46), the outer side of the connecting column (45) is slidably connected to the curved groove (46), the front side of the connecting column (45) is fixedly connected to a second support plate (47), and the bottom front side of the second support plate (47) is provided with an adsorption component (48).

4. The film stripping device for a flexible circuit board according to claim 1, characterized in that: The driving assembly (27) includes a first motor (271), the first motor (271) is fixedly connected to the front side of the hollow box (21), the output end of the first motor (271) passes through the hollow box (21) and is fixedly connected to a screw rod (272), the outer side of the screw rod (272) is threadedly connected to a sliding seat (273), and the left and right sides of the sliding seat (273) are respectively fixedly connected to corresponding plug-in columns (25).

5. The film stripping device for a flexible circuit board according to claim 1, characterized in that: The rolling assembly (28) comprises a mounting seat (281), wherein a plurality of the mounting seats (281) are fixedly connected to one side of the bottom of the corresponding hollow plate (5) at equal distances, and the bottoms of the plurality of the mounting seats (281) are rotatably connected to a pressure roller (282).

6. The film stripping device for a flexible circuit board according to claim 2, characterized in that: The control assembly (37) includes a housing (371), the housing (371) is fixedly connected to the right wall of the two hollow plates (5) on the right side, the front side of the housing (371) is rotatably connected to a rotating rod (372), the rear end of the rotating rod (372) passes through the housing (371), the front and rear sides of the outer wall of the rotating rod (372) are fixedly connected to a driving bevel gear (373), the right end of the bidirectional threaded rod (31) is fixedly connected to a driven bevel gear (374), and the driving bevel gear (373) is meshed with the driven bevel gear (374).

7. The film stripping device for a flexible circuit board according to claim 3, characterized in that: The adsorption assembly (48) includes an adsorption head (481), which is fixedly connected to the bottom front side of the second support plate (47), and the top end of the adsorption head (481) passes through the second support plate (47) and is connected to a negative pressure interface (482).

8. The film stripping device for a flexible circuit board according to claim 4, characterized in that: The driving assembly (27) further comprises a guide rod (274), wherein the guide rod (274) is fixedly connected to the middle and lower portion of the inner side of the hollow box (21), and the outer side of the guide rod (274) is slidably connected to the sliding seat (273).

9. The film stripping device for a flexible circuit board according to claim 1, characterized in that: The left and right sides of the top of the base (1) are both rotatably connected to driving rollers (6), and the two driving rollers (6) are connected by transmission via the conveyor belt (7). A second motor (8) is fixedly connected to the top left side of the front wall of the base (1), and the output end of the second motor (8) passes through the base (1) and is fixedly connected to the left driving roller (6).

10. An application method of a film stripping device for a flexible circuit board, characterized in that: A multi-stage gradient temperature sterilization device according to any one of claims 1 to 9, comprising the following steps: S1. The first motor (271) drives the screw rod (272) to rotate, and the rotation of the screw rod (272) drives the sliding seat (273) to move. The sliding seat (273) drives the plug-in column (25) to move. When the plug-in column (25) moves, it can pull the first support plate (23) to move downward through the Z-shaped groove (24). When the first support plate (23) moves, it can drive the connecting plate (26) to move downward through the movable plate (22), thereby driving the hollow plate (5) to move downward. The hollow plate (5) drives the mounting seat (281) to move downward, so that the pressure roller (282) can contact the flexible circuit board, thereby fixing the flexible circuit board. In addition, the hollow plates (5) on both sides ensure that the flexible circuit board at the film stripping position will not be blocked by other components when the film is stripped. S2. Rotating the rotating rod (372) can drive the active bevel gear (373) to rotate. Since the driven bevel gear (374) is engaged with the active bevel gear (373), when the active bevel gear (373) rotates, the driven bevel gear (374) will drive the bidirectional threaded rod (31) to rotate. The rotation of the bidirectional threaded rod (31) will drive the corresponding first slider (32) to move. When the first slider (32) moves, it can push the second slider (35) to move through the connecting rod (33). The second slider (35) will drive the positioning plate (36) to move. By setting the threads of the bidirectional threaded rods (31) on the front and rear sides relative to each other, the positioning plates (36) on the front and rear sides will move towards each other at the same time, so as to position flexible circuit boards of different sizes. S3, the hydraulic rod (43) will push the movable block (44) to move downward, and the movable block (44) can drive the second support plate (47) to move downward through the connecting column (45), so that the adsorption head (481) contacts the flexible circuit board, thereby adsorbing the film on the flexible circuit board, and then the hydraulic rod (43) will drive the movable block (44) to move upward, so that the adsorption head (481) moves upward to peel off the film, and when the movable block (44) moves to the upper middle part of the hollow tube (42), the connecting column (45) will be pushed by the curved groove (46), slide inside the curved groove (46), and drive the second support plate (47) to rotate, so that the adsorption head (481) can move to the rear side of the base (1), and the adsorption head (481) will stop adsorbing the film, and the film will fall into the rear side of the device, completing the automatic stripping and unloading of the film; S4, the second motor (8) drives the left driving roller (6) to rotate, and when the left driving roller (6) rotates, it drives the conveyor belt (7) to operate, thereby driving the flexible circuit board on the top to move. The flexible circuit board is located in the middle of the conveyor belt (7) through the action of the positioning plates (36) on both sides, so that the position of the flexible circuit board is accurate. After the adsorption head (481) is used to perform film work on it, the conveyor belt (7) will continue to drive the flexible circuit board to move, realizing the automatic loading and unloading of the flexible circuit board.

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