A peeling device for a polarizing plate release film

Abstract

The application discloses a peeling device for polarizing plate release film, and belongs to the technical field of polarizing plate, which comprises a rack, a conveying belt for conveying the polarizing plate is installed on the rack, a mounting seat and a driving part for driving the mounting seat to slide vertically are arranged on the rack, an output roller, a moving roller and a collecting roller are installed on the mounting seat, an adhesive tape is arranged around the outer periphery of the output roller, one end of the adhesive tape is fixedly connected with the outer periphery of the output roller, the other end of the adhesive tape is fixedly connected with the outer periphery of the collecting roller after passing through the moving roller, the adhesive surface of the adhesive tape can abut against the release film, and an extrusion assembly for driving the release film to move downwards is arranged on the rack. The application has the effect that the polarizing plate release film can be completely peeled off.

Description

A release device for polarizing film Technical Field

[0001] This application relates to the technical field of polarizers, and in particular to a device for peeling off the release film of a polarizer. Background Technology

[0002] The full name of a polarizer is polarizing film. The imaging of liquid crystal displays must rely on polarized light. All liquid crystals have two polarizing films, one in front and one behind, which are closely attached to the liquid crystal glass to form a liquid crystal film with a total thickness of about 1mm.

[0003] Before bonding the polarizer to the liquid crystal glass, the release film on the polarizer needs to be removed. Common peeling devices include a work platform, a conveyor wheel, a return wheel, and multiple guide wheels. New tape is output from the conveyor wheel, and the end of the tape is connected to the return wheel via multiple guide wheels. The adhesive side of the tape adheres to the release film of the polarizer. The operation of the conveyor wheel and the return wheel drives the tape to move horizontally on the surface of the work platform, thereby completely removing the release film from the polarizer.

[0004] Regarding the aforementioned technologies, the adhesion between the release film and the polarizer is relatively strong. Simply using tape to remove the release film may result in the tape's adhesion to the release film being less than the adhesion between the release film and the polarizer, which could easily lead to the release film not being completely removed. Summary of the Invention

[0005] In order to improve the problem that the adhesive tape has poor adhesion to the release film, which easily leads to the polarizer not being able to be completely removed, this application provides a device for peeling off the release film of the polarizer.

[0006] The polarizer release film peeling device provided in this application adopts the following technical solution:

[0007] A release film peeling device for polarizers includes a frame with a conveyor belt for conveying polarizers mounted on it. The frame also has a mounting base and a drive unit for driving the mounting base to slide vertically. An output roller, a moving roller, and a collecting roller are mounted on the mounting base. An adhesive tape is wound around the outer circumference of the output roller. One end of the adhesive tape is fixedly connected to the outer circumferential surface of the output roller, and the other end of the adhesive tape passes around the moving roller and is fixedly connected to the outer circumferential surface of the collecting roller. The adhesive surface of the adhesive tape can abut against the release film. An extrusion assembly is provided on the frame to drive the release film downwards.

[0008] By adopting the above technical solution, when the polarizer moves to the end of the conveyor belt, the mounting base is moved upward, so that the adhesive surface of the tape adheres to the release film on the bottom surface of the polarizer. The driving component drives the mounting base downward, so that the tape tears off the release film. After the tape tears off part of the release film, the extrusion component drives the release film downward, thereby completely peeling off the release film.

[0009] Preferably, the frame includes a fixed base plate and two side plates, the conveyor belt is located between the two side plates, the driving component includes a reciprocating screw rotatably mounted between the side plates and the fixed base plate, the mounting seat is threadedly engaged with the reciprocating screw, a drive motor is fixed on the top surface of the side plate, and the output shaft of the drive motor is fixedly connected to the top end of the reciprocating screw.

[0010] By adopting the above technical solution, the drive motor is started, which drives the reciprocating screw to rotate. The reciprocating screw drives the mounting base to move vertically, thereby facilitating the adhesion of the release film by the tape.

[0011] Preferably, a telescopic rod is installed on the mounting base, a movable plate is fixed to the top end of the telescopic rod, the movable roller is rotatably mounted on the movable plate, a tension spring is sleeved on the outer periphery of the telescopic rod, the bottom end of the tension spring is fixedly connected to the mounting base, and the top end of the tension spring is fixedly connected to the bottom surface of the movable plate.

[0012] By adopting the above technical solution, the moving plate moves upward under the elastic force of the tension spring, so that the tape is in a tensioned state and the adhesive surface of the tape can be pressed against the release film, so that the tape can adhere to the release film.

[0013] Preferably, a collecting motor is installed on the mounting base, the output shaft of the collecting motor is fixedly connected to the end of the collecting roller, a control groove is provided on the top surface of the fixed base plate, a control block is mounted on the fixed base plate by sliding vertically through the control groove, a control spring is fixed on the bottom surface of the control block, the bottom end of the control spring is fixedly connected to the bottom surface of the control groove, a moving piece is fixed on the side of the control block, and a fixed piece is fixed on the inner wall of the control groove, which can make electrical contact with the moving piece. The moving piece is electrically connected to the collecting motor, and the fixed piece is electrically connected to the power supply.

[0014] By adopting the above technical solution, after the tape adheres to the release film, the mounting base drives the tape to move downward. During the descent of the mounting base, it comes into contact with the control block and pushes the control block to move downward, so that the moving plate one and the fixed plate one make electrical contact. The collecting motor is energized and works, and the collecting motor drives the collecting roller to rotate. The collecting roller drives the tape to move, so that the tape that has adhered to the release film on the moving roller moves to the collecting roller, so that the tape can adhere to the release film again.

[0015] Preferably, the extrusion assembly includes two extrusion rollers rotating in opposite directions. Dovetail grooves are formed on the bottom surfaces of both side plates. Dovetail blocks are slidably mounted on the side plates along their length through the dovetail grooves. Extrusion blocks are respectively installed at both ends of the extrusion rollers. The extrusion blocks are fixedly connected to the dovetail blocks. The two extrusion rollers are located on both sides of the release film. An extrusion motor is mounted on the frame. The output shaft of the extrusion motor is fixedly connected to the end of the extrusion rollers. A pushing assembly for pushing the two extrusion rollers to abut against each other is provided on the frame.

[0016] By adopting the above technical solution, after the tape tears a portion of the release film downwards, two extrusion rollers hold the release film in the middle, the extrusion motor drives the extrusion rollers to rotate, and the extrusion rollers push the release film downwards, thereby completely removing the release film from the polarizer.

[0017] Preferably, a compression spring is fixed to the side of the dovetail block away from the release film, and the end of the compression spring away from the compression block is fixedly connected to the inner wall of the dovetail groove. A pull rope is fixed to the side of the compression block away from the release film. A retaining ring one is fixed to the bottom surface of the side plate, and a retaining ring two is fixed to the top surface of the fixed base plate. The end of the pull rope away from the compression block passes through the retaining ring one and the retaining ring two and is fixedly connected to the bottom of the mounting base.

[0018] By adopting the above technical solution, during the upward movement of the mounting base, the mounting base drives the two extrusion rollers to move away from each other through the pull rope, so that the moving roller can move between the two extrusion rollers, so that the tape and the release film come into contact. During the downward movement of the mounting base, the extrusion block moves towards the release film under the elastic force of the extrusion spring, and the extrusion roller extrudes the release film, thereby driving the release film to move downward.

[0019] Preferably, the two side plates are provided with abutment grooves on their opposite inner sides, a rotating rod is installed in the abutment groove, an abutment block is sleeved on the outer periphery of the rotating rod, a positioning block is fixed in the abutment groove, the side of the rotating rod near the conveyor belt can abut against the positioning block, a torsion spring is sleeved on the outer periphery of the rotating rod, one end of the torsion spring is fixedly connected to the inner wall of the abutment groove, and the other end of the torsion spring is fixedly connected to the abutment block.

[0020] By adopting the above technical solution, when the polarizer moves to the end of the conveyor belt, the abutment block abuts against the positioning block under the action of the torsion spring, so that the position of the abutment block is fixed and abuts against the polarizer, so that one corner of the polarizer is exposed outside the conveyor belt, so that the tape can adhere to the release film.

[0021] Preferably, a plurality of limiting rollers are rotatably mounted between the two side plates, the limiting rollers being located above the conveyor belt, and the limiting rollers being able to fit against the polarizer.

[0022] By adopting the above technical solution, when the polarizer moves to the end of the conveyor belt, the top surface of the polarizer is in contact with the limiting roller, so that the polarizer is not easy to lift up when the tape peels off the release film.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. When the polarizer moves to the end of the conveyor belt, the mounting base is moved upward so that the adhesive side of the tape adheres to the release film on the bottom surface of the polarizer. The driving component drives the mounting base downward so that the tape tears off the release film. After the tape tears off part of the release film, the extrusion component drives the release film downward so that the release film is completely peeled off.

[0025] 2. After the tape adheres to the release film, the mounting base moves the tape downwards. During the descent, the mounting base comes into contact with the control block and pushes the control block downwards, so that the moving plate 1 and the fixed plate 1 make electrical contact. The collecting motor is energized and drives the collecting roller to rotate. The collecting roller drives the tape to move, so that the tape adhered to the release film on the moving roller moves to the collecting roller, so that the tape can adhere to the release film again.

[0026] 3. As the mounting base moves upward, the mounting base drives the two extrusion rollers away from each other via the pull rope, so that the moving roller can move between the two extrusion rollers, so that the tape and the release film come into contact. As the mounting base moves downward, the extrusion block moves towards the release film under the elastic force of the extrusion spring, and the extrusion roller extrudes the release film, thereby driving the release film to move downward. Attached Figure Description

[0027] Figure 1 is a schematic diagram of the overall structure of the polarizer release film peeling device according to an embodiment of this application.

[0028] Figure 2 is a cross-sectional view of the side plate in the polarizer release film peeling device according to an embodiment of this application.

[0029] Figure 3 is a schematic diagram of the structure of the peeling component in the peeling device for the release film of the polarizer according to an embodiment of this application.

[0030] Figure 4 is a cross-sectional view of the mounting block in the polarizer release film peeling device according to an embodiment of this application.

[0031] Reference numerals: 1. Frame; 11. Fixed base plate; 12. Side plate; 13. Support rod; 14. Conveyor roller; 15. Conveyor belt; 16. Fixed motor; 17. Conveying roller; 18. Limiting roller; 2. Peeling assembly; 21. Mounting base; 22. Mounting plate; 23. Drive component; 24. Reciprocating screw; 25. Guide rod; 26. Drive motor; 27. Output roller; 28. Collecting roller; 29. ​​Collecting motor; 3. Moving plate; 31. Telescopic rod; 32. Fixed sleeve; 33. Moving rod 34. Tensioning spring; 35. Moving roller; 36. Belt; 4. Abutting block; 41. Abutting groove; 42. Rotating rod; 43. Torsion spring; 44. Positioning block; 5. Mounting block; 51. Control groove; 52. Control block; 53. Control spring; 54. Moving plate one; 55. Fixed plate one; 6. Extrusion roller; 61. Dovetail groove; 62. Dovetail block; 63. Extrusion spring; 64. Extrusion block; 65. Extrusion motor; 66. Snap ring one; 67. Snap ring two; 68. Snap ring three; 69. Pull rope. Detailed Implementation

[0032] The present application will be further described in detail below with reference to Figures 1-4.

[0033] This application discloses a release liner peeling device for polarizing films. Referring to Figures 1 and 2, the release liner peeling device includes a frame 1, which includes a fixed base plate 11 and two parallel side plates 12. Two vertically arranged support rods 13 are fixed to the bottom surface of the side plates 12, and the bottom ends of the support rods 13 are fixedly connected to the top surface of the fixed base plate 11. Two conveyor rollers 14 are rotatably mounted between the two side plates 12, and a conveyor belt 15 is wound around the outer periphery of the two conveyor rollers. A fixed motor 16 is fixed to the side of the side plate 12, and the output shaft of the fixed motor 16 is fixedly connected to the end of one of the conveyor rollers 14. A plurality of conveyor rollers 17 are rotatably mounted between the two side plates 12, and there is a distance between the conveyor rollers 17 and the conveyor belt 15. A peeling assembly 2 for peeling off the release liner is arranged between the conveyor rollers 17 and the conveyor belt 15. Several limiting rollers 18 are rotatably installed between the two side plates 12. The limiting rollers 18 are located above the conveyor belt 15, and the outer peripheral surface of the limiting rollers 18 can be in contact with the top surface of the polarizer.

[0034] The polarizer moves on the conveyor belt 15. When the polarizer moves to one end of the conveyor belt 15 near the conveyor roller 17, the polarizer is located below the limiting roller 18. The peeling assembly 2 peels off the release film on the bottom surface of the polarizer. The limiting roller 18 limits the polarizer so that it is not easy for the polarizer to lift up, so that the polarizer can move above the conveyor roller 17 during the peeling process.

[0035] Referring to Figure 1, the peeling assembly 2 includes a mounting base 21 and a drive member 23 for driving the mounting base 21 to move vertically. The drive member 23 includes a reciprocating screw 24 and a guide rod 25 rotatably mounted between the side plate 12 and the fixed base plate 11, with the reciprocating screw 24 and guide rod 25 arranged vertically. The mounting base 21 includes a horizontally arranged mounting plate 22, through which the guide rod 25 and the reciprocating screw 24 pass, and the mounting plate 22 is threadedly engaged with the reciprocating screw 24. A drive motor 26 is fixedly mounted on the top surface of the side plate 12, and the output shaft of the drive motor 26 is fixedly connected to the top end of the reciprocating screw 24.

[0036] Referring to Figures 1 and 3, an output roller 27 and a collecting roller 28 are rotatably mounted on the top surface of the mounting plate 22. A telescopic rod 31 is installed between the output roller 27 and the collecting roller 28, and a movable roller 35 is mounted on the top of the telescopic rod 31. The telescopic rod 31 includes a fixed sleeve 32 fixed to the top surface of the mounting plate 22 and a movable rod 33 slidably installed within the fixed sleeve 32. A movable plate 3 is fixed to the top of the movable rod 33, and the movable roller 35 is rotatably mounted on the top surface of the movable plate 3. A tension spring 34 is sleeved around the outer periphery of the telescopic rod 31. The bottom end of the tension spring 34 is fixedly connected to the top surface of the mounting plate 22, and the top end of the tension spring 34 is fixedly connected to the bottom surface of the movable plate 3. A collecting motor 29 is fixed to the top surface of the mounting plate 22, and the output shaft of the collecting motor 29 is fixedly connected to the end of the collecting roller 28. A tape 36 is wrapped around the outer periphery of the output roller 27. One end of the tape 36 is fixedly connected to the outer periphery of the output roller 27, and the other end of the tape 36 is fixedly connected to the outer periphery of the collecting roller 28 after passing around the moving roller 35.

[0037] Start the drive motor 26, which drives the reciprocating screw 24 to rotate. The reciprocating screw 24 drives the mounting plate 22 to move upward. The tape 36 is kept taut under the elastic force of the tension spring 34. The adhesive surface of the tape 36 is attached to the release film on the bottom surface of the polarizer. The reciprocating screw 24 drives the mounting plate 22 to move downward. The tape 36 drives the release film downward, thereby peeling off the release film on the polarizer.

[0038] Referring to Figures 1 and 2, abutment grooves 41 are respectively formed on the inner sides of the two side plates 12. A vertically arranged rotating rod 42 is rotatably installed in the abutment groove 41, and an abutment block 4 is sleeved on the outer periphery of the rotating rod 42. A torsion spring 43 is sleeved on the outer periphery of the rotating rod 42. One end of the torsion spring 43 is fixedly connected to the inner wall of the abutment groove 41, and the other end of the torsion spring 43 is fixedly connected to the abutment block 4. A positioning block 44 is fixed in the abutment groove 41. Under the elastic force of the torsion spring 43, the abutment block 44 can abut against the side of the positioning block 44 away from the conveyor belt 15.

[0039] When the polarizer moves to the end of the conveyor belt 15 near the conveyor roller 17, one corner of the polarizer is located between the conveyor belt 15 and the conveyor roller 17, and the abutment block 4 abuts against the polarizer, thereby limiting the polarizer so that the tape 36 can stick the release film.

[0040] Referring to Figures 1 and 4, a mounting block 5 is integrally formed on the top surface of the fixed base plate 11. A control groove 51 is formed on the top surface of the mounting block 5, and a control block 52 is mounted on the mounting block 5 by sliding vertically through the control groove 51. A control spring 53 is fixed on the bottom surface of the control block 52, and the bottom end of the control spring 53 is fixedly connected to the inner bottom surface of the control groove 51. A movable piece 54 is embedded and fixed on the side of the control block 52, and a fixed piece 55 that can make electrical contact with the movable piece 54 is embedded and fixed on the inner wall of the control groove 51. The fixed piece 55 is electrically connected to the power supply, and the movable piece 54 is electrically connected to the collecting motor 29.

[0041] As the mounting plate 22 moves downward, it abuts against the control block 52 and pushes the control block 52 downward. The moving piece 54 and the fixed piece 55 make electrical contact. The collecting motor 29 is energized and drives the collecting roller 28 to rotate. The collecting roller 28 drives the tape 36 to move, so that the part of the tape 36 that is not attached to the release film moves to the moving roller 35, so that the moving roller 35 can peel off the release film of the next polarizer after moving upward.

[0042] Referring to Figures 1 and 2, two parallel extrusion rollers 6 are provided on the bottom surface of the side plate 12, with the two extrusion rollers 6 located on opposite sides of the release film. Each side plate 12 has a dovetail groove 61 on its bottom surface, through which a dovetail block 62 is slidably mounted along its length. An extrusion spring 63 is fixed to the side of the dovetail block 62 away from the release film, and the end of the extrusion spring 63 away from the dovetail block 62 is fixedly connected to the inner wall of the dovetail groove 61. An extrusion block 64 is fixed to the bottom surface of the dovetail block 62, and the extrusion roller 6 is rotatably mounted between the two extrusion blocks 64. An extrusion motor 65 is fixed to one of the extrusion blocks 64, and the output shaft of the extrusion motor 65 is fixedly connected to the end of one of the extrusion rollers 6. A retaining ring 66 is fixed to the bottom surface of the side plate 12, located on the side of the extrusion block 64 away from the release film. A retaining ring 2 67 and a retaining ring 3 68 are fixed to the top surface of the fixed base plate 11. The retaining ring 2 67 is located directly below the retaining ring 1 66, and the retaining ring 3 68 is located directly below the mounting plate 22. A pull rope 69 is fixed to the side of the extrusion block 64 away from the release film. The end of the pull rope 69 away from the extrusion block 64 passes through the retaining ring 1 66, the retaining ring 2 67, and the retaining ring 3 68 in sequence, and is fixedly connected to the bottom surface of the mounting plate 22.

[0043] As the mounting plate 22 moves upward, the pull rope 69 drives the two extrusion rollers 6 to move away from each other, so that the moving roller 35 can drive the tape 36 to move to the bottom surface of the polarizer. After the tape 36 adheres to the release film, the mounting plate 22 moves downward, and the tape 36 drives the release film down between the two extrusion rollers 6. At the same time, the extrusion rollers 6 move towards the release film under the elastic force of the extrusion spring 63. The two extrusion rollers 6 hold the release film in the middle. The extrusion motor 65 is started, and the extrusion motor 65 drives the extrusion rollers 6 to rotate, so that the release film continues to detach from the polarizer under the action of the two extrusion rollers 6.

[0044] The implementation principle of the polarizer release film peeling device in this embodiment is as follows: The polarizer moves towards the conveyor roller 17 under the action of the conveyor belt 15. When the polarizer moves below the limiting roller 18, the abutment block 4 abuts against the polarizer, causing the polarizer to stop moving. At this time, the drive motor 26 drives the reciprocating screw 24 to rotate, which in turn drives the mounting plate 22 to move upward. The moving roller 35 moves between the conveyor belt 15 and the conveyor roller 17, and the adhesive tape 36 on the moving roller 35 adheres to the release film on the bottom surface of the polarizer. When the reciprocating screw 24 drives the mounting plate 22 to move downward... The tape 36 moves one corner of the release film downwards, while the polarizer moves upwards towards the conveyor roller 17. As the moving roller 35 moves upwards, the mounting plate 22 moves the extrusion block 64 via the pull rope 69, thereby moving the two extrusion rollers 6 away from each other so that the moving roller 35 can move to the bottom of the polarizer. As the moving roller 35 moves downwards, the extrusion roller 6 moves towards the release film under the elastic force of the extrusion spring 63 and squeezes the release film in the middle. The extrusion motor 65 drives the extrusion roller 6 to rotate, and the extrusion roller 6 moves the release film downwards, thereby achieving the peeling of the release film.

[0045] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A device for peeling off a release film for a polarizing film, characterized in that: The device includes a frame (1) on which a conveyor belt (15) for conveying polarizers is mounted. The frame (1) also includes a mounting base (21) and a drive unit (23) for driving the mounting base (21) to slide vertically. An output roller (27), a moving roller (35), and a collecting roller (28) are mounted on the mounting base (21). A tape (36) is wound around the outer periphery of the output roller (27), with one end of the tape (36) fixedly connected to the outer peripheral surface of the output roller (27). The other end of the tape (36) passes around the moving roller (35) and is fixedly connected to the outer peripheral surface of the collecting roller (28). The adhesive surface of the tape (36) can abut against the release film. The frame (1) is provided with an extrusion assembly for driving the release film downward. The frame (1) includes a fixed base plate (11) and two side plates (12). The conveyor belt (15) is located between the two side plates (12). The driving component (23) includes components rotatably mounted on the side plates (12) and the fixed base plate (11). A reciprocating screw (24) rotates between the plates (11). The mounting base (21) is threadedly engaged with the reciprocating screw (24). A drive motor (26) is fixed on the top surface of the side plate (12). The output shaft of the drive motor (26) is fixedly connected to the top end of the reciprocating screw (24). The extrusion assembly includes two extrusion rollers (6) rotating in opposite directions. Dovetail grooves (61) are provided on the bottom surfaces of both side plates (12). The side plates (12) pass through the dovetail grooves (61) along their own... A dovetail block (62) is slidably installed along the length direction. Extrusion blocks (64) are respectively installed at both ends of the extrusion roller (6). The extrusion blocks (64) are fixedly connected to the dovetail block (62). The two extrusion rollers (6) are respectively located on both sides of the release film. An extrusion motor (65) is installed on the frame (1). The output shaft of the extrusion motor (65) is fixedly connected to the end of the extrusion roller (6). A pushing assembly for pushing the two extrusion rollers (6) to abut against each other is provided on the frame (1).

2. The device for peeling off a polarizing film release film according to claim 1, characterized in that: A telescopic rod (31) is installed on the mounting base (21). A movable plate (3) is fixed to the top of the telescopic rod (31). The movable roller (35) is rotatably mounted on the movable plate (3). A tension spring (34) is sleeved on the outer periphery of the telescopic rod (31). The bottom end of the tension spring (34) is fixedly connected to the mounting base (21), and the top end of the tension spring (34) is fixedly connected to the bottom surface of the movable plate (3).

3. The device for peeling off a polarizing film release film according to claim 2, characterized in that: A collecting motor (29) is installed on the mounting base (21). The output shaft of the collecting motor (29) is fixedly connected to the end of the collecting roller (28). A control groove (51) is provided on the top surface of the fixed base plate (11). A control block (52) is installed on the fixed base plate (11) through the control groove (51) in a vertical direction. A control spring (53) is fixed on the bottom surface of the control block (52). The bottom end of the control spring (53) is fixedly connected to the bottom surface of the control groove (51). A moving piece (54) is fixed on the side of the control block (52). A fixed piece (55) that can make electrical contact with the moving piece (54) is fixed on the inner wall of the control groove (51). The moving piece (54) is electrically connected to the collecting motor (29). The fixed piece (55) is electrically connected to the power supply.

4. The device for peeling off a polarizing film release film according to claim 1, characterized in that: A compression spring (63) is fixed to the side of the dovetail block (62) away from the release film. One end of the compression spring (63) away from the compression block (64) is fixedly connected to the inner wall of the dovetail groove (61). A pull rope (69) is fixed to the side of the compression block (64) away from the release film. A retaining ring one (66) is fixed to the bottom surface of the side plate (12). A retaining ring two (67) is fixed to the top surface of the fixed base plate (11). One end of the pull rope (69) away from the compression block (64) passes through the retaining ring one (66) and the retaining ring two (67) and is fixedly connected to the bottom of the mounting base (21).

5. The device for peeling off a polarizing film release film according to claim 1, characterized in that: The two side plates (12) are respectively provided with abutment grooves (41) on their opposite inner sides. A rotating rod (42) is installed in the abutment groove (41). An abutment block (4) is sleeved on the outer periphery of the rotating rod (42). A positioning block (44) is fixed in the abutment groove (41). The side of the rotating rod (42) near the conveyor belt (15) can abut against the positioning block (44). A torsion spring (43) is sleeved on the outer periphery of the rotating rod (42). One end of the torsion spring (43) is fixedly connected to the inner wall of the abutment groove (41), and the other end of the torsion spring (43) is fixedly connected to the abutment block (4).

6. The device for peeling off a polarizing film release film according to claim 1, characterized in that: A plurality of limiting rollers (18) are rotatably mounted between the two side plates (12). The limiting rollers (18) are located above the conveyor belt (15) and can be in contact with the polarizer.

Images