Edge cutting device for PVC (polyvinyl chloride) film

Abstract

The invention belongs to the technical field of PVC film trimming, and particularly relates to a PVC film trimming device which comprises a base frame, an operation platform is arranged at the upper end of the base frame, a cutting groove is formed in the surface of the operation platform, and a cutting structure is arranged at the upper end of the operation platform. By arranging the abutting plates, the two abutting pieces can move in the direction close to each other and penetrate through the film roll from the interior of the film roll, after the two abutting pieces make contact, the connecting arm can rotate, the angle formed between the connecting arm and the adjusting rod is larger and larger, and finally the multiple abutting plates are expanded; when the film roll is unfolded, the adjusting spring abuts against the film roll from the interior of the film roll to achieve fixation of the film roll, at the moment, edge cutting treatment can be conducted on the film roll, edge cutting work of the two ends can be conducted at the same time, and in the unfolding process, the adjusting spring can contract and release elastic force, so that the film rolls with different inner diameters can be well fixed.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of PVC film trimming, and particularly relates to a PVC film trimming device. BACKGROUND

[0002] PVC film has good transparency, toughness and strength, is a synthetic material with excellent performance and wide application, and in actual application, the PVC film can need specific width and shape, in addition, the edge of the PVC film can have problems such as unevenness, burrs or impurities during production, which can affect the quality of the PVC film and subsequent use effect, so that trimming treatment is performed in the PVC film production and processing process.

[0003] A patent application with the publication number CN216181111U discloses an edge trimming device for PVC film, which comprises a cutting machine body, a cutting cavity is arranged in the cutting machine body, a strip-shaped through hole is arranged on the upper end of the cutting machine body, and a cutting mechanism is arranged in the strip-shaped through hole, and guide rollers are arranged at both ends of the cutting mechanism, the device preferably realizes the adjustment of the slitting width of the PVC film, thereby preferably realizing the slitting of the PVC film and facilitating daily production.

[0004] The above scheme still has some problems in actual application, when the PVC film wound into a roll is trimmed by the device, the end of the PVC film needs to be clamped and fixed during the cutting process due to the too high rotating speed of the cutting knife, and the two ends of the PVC film need to be trimmed, so only one end can be clamped and fixed and the other end can be trimmed during the trimming process, reverse operation is performed after the trimming of one end is completed, and finally the complete trimming work is realized, this trimming method not only is time-consuming and affects the work efficiency, but also cannot adjust the clamping and fixing of the PVC film according to the specific caliber of the PVC film, which is very inflexible.

[0005] Therefore, the application provides a PVC film trimming device. SUMMARY

[0006] In order to make up for the deficiencies of the prior art and solve at least one technical problem proposed in the background art.

[0007] The technical scheme adopted by the present application to solve its technical problems is: a PVC film edge cutting device, comprising a base frame, the upper end of the base frame is provided with an operation platform, the surface of the operation platform is provided with a cutting groove, the upper end of the operation platform is provided with a cutting structure, the cutting structure comprises a cutting knife slidingly connected to the upper end of the operation platform, and the surface of the operation platform is provided with an adjusting structure; the adjusting structure comprises: an electric push rod, two electric push rods are arranged at one end of the operation platform; a sliding rod is arranged in the electric push rod, and the electric push rod controls the movement of the sliding rod; a rotating shaft is rotatably connected to one end of the rotating shaft; a limiting circular plate is arranged on the circular surface of the rotating shaft; a sliding groove is formed in the surface of the limiting circular plate; an adjusting rod is slidingly connected to the surface of the rotating shaft; a connecting arm is rotatably connected to the surface of the adjusting rod; an abutting plate is arranged at the other end of the connecting arm; a limiting rod is arranged at one end of the abutting plate, and the limiting rod slides on the inner wall of the sliding groove; and an abutting piece is arranged at one end of the adjusting rod.

[0008] Preferably, the cutting structure further comprises: a fixed plate arranged at the upper end of the operation platform; a telescopic air cylinder arranged at the upper end of the fixed plate; a lifting plate arranged at the lower end of the telescopic air cylinder, and the cutting knife is arranged at the lower end of the lifting plate; and the adjusting structure further comprises a lifter arranged at one side of the operation platform, and the lifter controls the movement of the electric push rod.

[0009] Preferably, the surface of the abutting plate is provided with an adjusting spring, and the end of the adjusting spring away from the adjusting rod is provided with an adjusting plate.

[0010] Preferably, one end of the limiting rod is provided with a connecting block, the surface of the connecting block is provided with an auxiliary roller, and the auxiliary roller slides on the surface of the limiting circular plate.

[0011] Preferably, one end of the fixed plate is provided with a storage frame, the lower end of the storage frame is provided with a discharging cylinder, the discharging cylinder is circular, a discharging roller is rotatably connected to the inside of the discharging cylinder, and a discharging port is formed in the lower end of the discharging cylinder.

[0012] Preferably, one end of the fixed plate close to the storage frame is provided with a connecting piece, and the connecting piece is connected with the storage frame, and the lower end of the connecting piece is provided with a vibrator.

[0013] Preferably, one end of the fixed plate close to the connecting piece is provided with a limiting spring, and the limiting spring is connected with the connecting piece.

[0014] Preferably, the surface of the operation platform is provided with a discharging slope.

[0015] Preferably, a rotating rod is rotatably connected inside the operation platform, one end of the rotating rod is provided with a lifting plate, the other end of the rotating rod is provided with a sliding block, the surface of the sliding block is provided with an abutting block, one end of the rotating rod inside the operation platform is rotatably connected with a rotating shaft, the surface of the rotating shaft is provided with a tooth block, the lower end of the abutting piece is provided with a connecting plate, and the lower end of the connecting plate is provided with a return spring.

[0016] Preferably, one end of the discharging roller is sleeved with a first track, the surface of the rotating shaft is sleeved with a second track, and the first track is connected with the second track.

[0017] The beneficial effects of the present application are as follows: 1. The PVC film edge cutting device disclosed by the present application, by setting the abutting plate, before the edge cutting work of the film roll, first place the film roll in the cutting groove, start the electric push rod, so that the two abutting pieces move towards each other and pass through the inside of the film roll, and the connecting arm will rotate and the angle formed between the adjusting rod will become larger and larger, finally the several abutting plates are opened and abut against the film roll from the inside of the film roll, realizing the fixation of the film roll, at this time the film roll can be cut and the edge cutting work of both ends can be carried out at the same time, and in the opening process, the adjusting spring will also be contracted and released, so that the film roll with different inner diameters can also be fixed well.

[0018] 2. The PVC film edge cutting device disclosed by the present application, by setting the storage frame and the discharging cylinder, before the edge cutting work of the film roll, several film rolls can be placed inside the storage frame, at this time only one film roll will fall into the notch on the surface of the discharging roller, start the discharging roller to rotate, the discharging roller will drive the film roll to move together, finally the film roll is transferred to the surface of the operation platform, and one film roll can be discharged every revolution, and the oscillator arranged at one end of the storage frame also oscillates the film rolls inside the storage frame, thereby avoiding the blocking of the several film rolls. BRIEF DESCRIPTION OF DRAWINGS

[0019] The present application will be further described below with reference to the drawings.

[0020] Figure 1 is a perspective view of the embodiment one of the present application; Figure 2 is a front view of the embodiment one of the present application; Figure 3 is a perspective view of the storage frame and the discharging cylinder of the present application; Figure 4is a perspective view of the operation platform of the present application; Figure 5 is a connection diagram of the abutting piece and the sliding rod of the present application; Figure 6 is a connection diagram of the abutting plate and the adjusting plate of the present application; Figure 7 is a perspective view of the limiting round plate of the present application; Figure 8 is Figure 7 is a local enlarged view at A in FIG. 4; Figure 9 is an internal view of the storage frame and the feeding cylinder of the present application; Figure 10 is a connection diagram of the feeding roller and the rotating rod of the present application; Figure 11 is a connection diagram of the lifting plate and the rotating rod of the present application; In the figure: 1, base frame; 2, operation platform; 21, feeding slope; 22, cutting groove; 3, cutting structure; 31, fixed plate; 32, lifting plate; 33, telescopic air cylinder; 34, cutting knife; 4, adjusting structure; 401, adjusting plate; 402, lifter; 403, electric push rod; 404, sliding rod; 405, lifting plate; 406, storage frame; 407, feeding cylinder; 408, discharge port; 409, first track; 410, abutting piece; 411, connecting plate; 412, rotating rod; 413, rotating shaft; 414, adjusting rod; 415, connecting arm; 416, abutting plate; 417, adjusting spring; 418, limiting round plate; 419, sliding groove; 420, limiting rod; 421, connecting block; 422, auxiliary roller; 423, connecting piece; 424, oscillator; 425, limiting spring; 426, rotating shaft; 427, tooth block; 428, sliding block; 429, second track; 430, abutting block; 431, return spring; 432, feeding roller; 5, film roll. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, purposes and effects realized by the present application easy to understand, the present application is further described below in combination with specific embodiments. Embodiment one

[0022] As Figures 1 to 11As shown, the PVC film edge cutting device provided by the embodiment of the present application comprises a base frame 1, the upper end of the base frame 1 is provided with an operation platform 2, the surface of the operation platform 2 is provided with a cutting groove 22, the upper end of the operation platform 2 is provided with a cutting structure 3, the cutting structure 3 comprises a cutting knife 34 which is slidingly connected to the upper end of the operation platform 2, and the surface of the operation platform 2 is provided with an adjusting structure 4; the adjusting structure 4 comprises: an electric push rod 403, two electric push rods 403 are arranged at one end of the operation platform 2; a sliding rod 404, the sliding rod 404 is arranged in the electric push rod 403, and the electric push rod 403 controls the movement of the sliding rod 404; a rotating shaft 413, the rotating shaft 413 is rotatably connected to one end of the rotating shaft 413; a limiting circular plate 418, the limiting circular plate 418 is arranged on the camber surface of the rotating shaft 413; a sliding groove 419, the sliding groove 419 is arranged on the surface of the limiting circular plate 418; an adjusting rod 414, the adjusting rod 414 is slidingly connected to the surface of the rotating shaft 413; a connecting arm 415, the connecting arm 415 is rotatably connected to the surface of the adjusting rod 414; an abutting plate 416, the abutting plate 416 is arranged at the other end of the connecting arm 415; a limiting rod 420, the limiting rod 420 is arranged at one end of the abutting plate 416, and the limiting rod 420 slides on the inner wall of the sliding groove 419; and an abutting piece 410, the abutting piece 410 is arranged at one end of the adjusting rod 414.

[0023] Specifically, the PVC film edge cutting device is mainly used for cutting the edge of the PVC film wound into a roll. When working, first, the film roll 5 is placed on the surface of the cutting groove 22, then the electric push rod 403 is started, the two electric push rods 403 drive the sliding rods 404 inside to move, the moving direction is to move close to each other, and the electric push rod 403 drives the adjusting rod 414 and the abutting piece 410 to move, when the two abutting pieces 410 move close to each other, they will pass through the inside of the film roll 5, and penetrate the film roll 5, after the two abutting pieces 410 contact, the adjusting rod 414 will slide on the surface of the rotating shaft 413 and move towards the limiting circular plate 418, when the adjusting rod 414 moves, the connecting arm 415 will rotate, and the angle between the connecting arm 415 and the adjusting rod 414 becomes larger and larger, thereby driving the abutting plate 416 to move, since the limiting rod 420 at one end of the abutting plate 416 slides on the inner wall of the sliding groove 419, at this time, the abutting plates 416 will move towards the inner wall of the film roll 5, and finally the film roll 5 is expanded to be fixed, and at this time, the sliding rod 404 is located at the end position of the film roll 5, since the diameter of the sliding rod 404 is smaller than the diameter of the film roll 5, so the cutting is not affected at all, at this time, the cutting knife 34 and the rotating shaft 413 are started, the cutting knife 34 will move downward, the rotating shaft 413 will rotate and drive the film roll 5 to rotate, when the cutting knife 34 contacts the film roll 5, the cutting knife 34 will cut the end of the film roll 5, and finally the edge cutting of the film roll 5 is completed, this fixing mode can fix the film roll 5 and cut the edges of both ends at the same time, thereby improving the edge cutting efficiency.

[0024] As shown in Figures 1 to 6 , the cutting structure 3 further comprises a fixed plate 31 provided at the upper end of the operation platform 2, a telescopic cylinder 33 provided at the upper end of the fixed plate 31, and a lifting plate 32 provided at the lower end of the telescopic cylinder 33, and the cutting knife 34 is provided at the lower end of the lifting plate 32, and the adjusting structure 4 further comprises a lifter 402 provided at one side of the operation platform 2, and the lifter 402 controls the movement of the electric push rod 403.

[0025] Specifically, after the film roll 5 is fixed, the lifter 402 and the telescopic cylinder 33 are started, the telescopic cylinder 33 drives the cutting knife 34 to move downward through the lifting plate 32, and the lifter 402 drives the electric push rod 403 to move upward, thereby avoiding the influence of the cutting groove 22 on the edge cutting work when the edge cutting work is performed.

[0026] As shown in Figures 1 to 7 , the surface of the abutting plate 416 is provided with an adjusting spring 417, and the end of the adjusting spring 417 away from the adjusting rod 414 is provided with an adjusting plate 401.

[0027] Specifically, by setting the adjusting spring 417 and the adjusting plate 401, the adjusting plate 401 will first contact the inner wall of the film roll 5 before the abutting plate 416 abuts against the inner wall of the film roll 5, and the adjusting spring 417 will also contract and release the elastic force according to the size of the inner diameter of the film roll 5, so that good fixation can be achieved when dealing with film rolls 5 with different inner diameters.

[0028] As shown in Figures 7 to 8 , one end of the limiting rod 420 is provided with a connecting block 421, the surface of the connecting block 421 is provided with an auxiliary roller 422, and the auxiliary roller 422 slides on the surface of the limiting circular plate 418.

[0029] Specifically, by setting the auxiliary roller 422, when the abutting plate 416 continuously expands the film roll 5, the limiting rod 420 slides in the sliding groove 419, and at this time the auxiliary roller 422 at one end of the limiting rod 420 will slide on the surface of the limiting circular plate 418, thereby reducing the friction between the limiting rod 420 and the sliding groove 419, thereby increasing the service life. Example two

[0030] As shown in Figure 9 , compared with example one, another embodiment of the application is that one end of the fixed plate 31 is provided with a storage frame 406, the lower end of the storage frame 406 is provided with a discharging cylinder 407, the discharging cylinder 407 is circular, a discharging roller 432 is rotatably connected in the discharging cylinder 407, and a discharging port 408 is formed in the lower end of the discharging cylinder 407.

[0031] Specifically, by setting the storage frame 406 and the discharging cylinder 407, when the film roll 5 is being edge-cut, a plurality of film rolls 5 can be placed in the storage frame 406, the film rolls 5 in the storage frame 406 will move towards the discharging cylinder 407, and due to the limiting of the discharging roller 432, the film rolls 5 will be temporarily stored in the storage frame 406 at this time, and then when the film roll 5 needs to be placed in the cutting groove 22, the discharging roller 432 is started to rotate, since the surface of the discharging roller 432 is provided with a slot for placing a film roll 5, so one film roll 5 will rotate together with the discharging roller 432, and when the discharging roller 432 drives the film roll 5 to rotate to the discharging port 408, the film roll 5 will fall from the discharging port 408 and finally fall into the cutting groove 22.

[0032] As shown in Figure 9 , one end of the fixed plate 31 close to the storage frame 406 is provided with a connecting piece 423, the connecting piece 423 is connected with the storage frame 406, and the lower end of the connecting piece 423 is provided with a vibrator 424.

[0033] Specifically, by setting the oscillator 424, when a plurality of film rolls 5 are placed inside the storage frame 406, the amplifier inside the oscillator 424 is started, the output signal in the amplifier will continuously increase, and feedback to the input through the feedback loop, so as to form a closed loop oscillation system, in the closed loop, the signal continuously increases caused by feedback, until reaching the saturation point of the amplifier, at this time the oscillator 424 generates stable oscillation output at a certain frequency, so that the storage frame 406 oscillates, thereby avoiding the film roll 5 inside from being blocked.

[0034] As shown in Figure 9 The fixed plate 31 is provided with a limiting spring 425 near one end of the connecting piece 423, and the limiting spring 425 is connected with the connecting piece 423.

[0035] Specifically, by setting the limiting spring 425, since the oscillator 424 drives the storage frame 406 and the connecting piece 423 to oscillate, the limiting spring 425 will absorb the oscillation energy at this time, which can reduce the impact of oscillation on the storage frame 406 without affecting the oscillation of the storage frame 406.

[0036] As shown in Figures 1 to 4 The surface of the operation platform 2 is provided with a discharging slope 21.

[0037] Specifically, by setting the discharging slope 21, when the film roll 5 falls from the discharge port 408, it will be located on the surface of the discharging slope 21, and the lower end of the discharging slope 21 is close to the cutting groove 22, so the film roll 5 at this time will be automatically transferred to the inside of the cutting groove 22 for edge cutting work.

[0038] As shown in Figures 10 to 11 The operation platform 2 is rotatably connected with a rotating rod 412, one end of the rotating rod 412 is provided with a pick plate 405, the other end of the rotating rod 412 is provided with a sliding block 428, the surface of the sliding block 428 is provided with an abutting block 430, one end of the operation platform 2 close to the rotating rod 412 is rotatably connected with a rotating shaft 426, the surface of the rotating shaft 426 is provided with a tooth block 427, the lower end of the abutting piece 410 is provided with a connecting plate 411, and the lower end of the connecting plate 411 is provided with a return spring 431.

[0039] Specifically, by setting the connecting plate 411, when the two abutting pieces 410 abut against each other, the abutting pieces 410 will drive the sliding block 428 to move away from the rotating shaft 426 through the abutting block 430, at this time the rotating shaft 426 is started to rotate, after the trimming is completed, the two abutting pieces 410 will be separated, at this time the abutting pieces 410 will drive the sliding block 428 to move towards the rotating shaft 426, finally the tooth block 427 is clamped into the inside of the sliding block 428, so that the rotating shaft 426 drives the sliding block 428 to rotate, finally the pick plate 405 is automatically rotated to push out the film roll 5 whose trimming is completed, so as to facilitate the subsequent trimming work.

[0040] As shown in Figures 10 to 11 The one end of the feeding roller 432 is sleeved with the first track 409, the surface of the rotating shaft 426 is sleeved with the second track 429, and the first track 409 is connected with the second track 429.

[0041] Specifically, when the feeding roller 432 continues to feed the untrimmed film roll 5, since the tooth block 427 has been clamped into the inside of the sliding block 428 at this time, the feeding roller 432 will drive the rotating shaft 426 to rotate through the first track 409 and the second track 429 at this time, which not only completes the feeding of the untrimmed film roll 5, but also completes the transfer of the trimmed film roll 5.

[0042] Working principle: the device is mainly used for cutting edge processing of the PVC film wound into roll shape, when working, a plurality of film rolls are placed in the inside of the storage frame, the film rolls in the inside of the storage frame will move towards the direction of the feeding cylinder, due to the limiting of the feeding roller, the film roll at this time will be temporarily stored in the inside of the storage frame, then when it is needed to place the film roll in the inside of the cutting groove, the feeding roller is started to rotate, since the surface of the feeding roller is provided with a slot for placing a film roll, so a film roll will rotate with the feeding roller, when the feeding roller drives the film roll to rotate to the discharge opening, the film roll will fall from the discharge opening, and finally fall on the surface of the feeding slope, the lower end of the feeding slope is close to the cutting groove, so the film roll at this time will be automatically transferred to the inside of the cutting groove, then the electric push rod is started, the two electric push rods will drive the inside sliding rod to move, the moving direction is close to each other, and the electric push rod will drive the adjusting rod and the abutting piece to move together, when the two abutting pieces move towards the direction of close to each other, they will pass through the inside of the film roll, and penetrate the film roll, after the two abutting pieces contact, the adjusting rod will slide on the surface of the rotating shaft, and move towards the direction of the limiting circular plate, when the adjusting rod moves, the connecting arm will rotate, and the angle between the connecting arm and the adjusting rod becomes larger and larger, so as to drive the abutting plate to move, since the limiting rod at one end of the abutting plate slides on the inner wall of the sliding groove, so at this time a plurality of abutting plates will move towards the inner wall of the film roll, finally the film roll is expanded, the fixing of the film roll is realized, and the sliding rod at this time is located at the end position of the film roll, since the diameter of the sliding rod is smaller than that of the film roll, so the cutting is not affected at all, at this time the lifter and the telescopic cylinder are started, the telescopic cylinder will drive the cutting knife to move downwards through the lifting plate, and the lifter will drive the electric push rod to move upwards, when the cutting knife contacts the film roll, the cutting knife will cut the end of the film roll, finally the cutting edge processing of the film roll is completed, after the cutting edge is completed, the two abutting pieces will separate, at this time the abutting piece will drive the sliding block to move towards the direction close to the rotating shaft, finally the tooth block is clamped in the inside of the sliding block, since the feeding roller will drive the rotating shaft to rotate through the first caterpillar and the second caterpillar, at this time the rotating shaft will drive the sliding block to rotate, finally the lifting plate is automatically rotated to eject the film roll with completed cutting edge, so as to facilitate the subsequent cutting edge work.

[0043] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, the above examples and descriptions in the specification are only to illustrate the principle of the present application, without departing from the spirit and scope of the present application, the present application can have various changes and improvements, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A PVC film edge-cutting device, comprising a base frame (1), an operating platform (2) provided at the upper end of the base frame (1), a cutting groove (22) provided on the surface of the operating platform (2), a cutting structure (3) provided at the upper end of the operating platform (2), the cutting structure (3) comprising a cutting blade (34) slidably connected to the upper end of the operating platform (2), characterized in that: The surface of the operating platform (2) is provided with an adjustment structure (4); The adjustment structure (4) includes: Electric push rods (403), two of the electric push rods (403) are located at one end of the operating platform (2); A sliding rod (404) is disposed inside the electric push rod (403), and the electric push rod (403) controls the movement of the sliding rod (404); A rotating shaft (413) is rotatably connected to one end of the rotating shaft (413); A limiting circular plate (418) is provided on the arc surface of the rotating shaft (413); A sliding groove (419) is formed on the surface of the limiting circular plate (418); Adjusting rod (414), which is slidably connected to the surface of the rotating shaft (413); Connecting arm (415), which is rotatably connected to the surface of the adjusting rod (414); Abutting plate (416) is provided at the other end of the connecting arm (415); A limiting rod (420) is provided at one end of the abutment plate (416), and the limiting rod (420) slides on the inner wall of the sliding groove (419); Abutting piece (410) is provided at one end of the adjusting rod (414).

2. The PVC film edge-cutting device according to claim 1, characterized in that: The cutting structure (3) also includes: A fixing plate (31) is provided at the upper end of the operating platform (2); Telescopic cylinder (33), the telescopic cylinder (33) is located at the upper end of the fixed plate (31); The lifting plate (32) is located at the lower end of the telescopic cylinder (33), and the cutting blade (34) is located at the lower end of the lifting plate (32). The adjustment structure (4) also includes a lifter (402), which is located on one side of the operating platform (2) and controls the movement of the electric push rod (403).

3. The PVC film edge-cutting device according to claim 1, characterized in that: The surface of the abutment plate (416) is provided with an adjusting spring (417), and an adjusting plate (401) is provided at the end of the adjusting spring (417) away from the adjusting rod (414).

4. The PVC film edge-cutting device according to claim 1, characterized in that: One end of the limiting rod (420) is provided with a connecting block (421), and the surface of the connecting block (421) is provided with an auxiliary roller (422), and the auxiliary roller (422) slides on the surface of the limiting circular plate (418).

5. A PVC film edge-cutting device according to claim 2, characterized in that: One end of the fixed plate (31) is provided with a storage frame (406), and the lower end of the storage frame (406) is provided with a feeding cylinder (407). The feeding cylinder (407) is circular, and a feeding roller (432) is rotatably connected inside the feeding cylinder (407). The lower end of the feeding cylinder (407) is provided with a discharge port (408).

6. A PVC film edge-cutting device according to claim 5, characterized in that: The fixing plate (31) is provided with a connecting piece (423) at one end near the storage frame (406), and the connecting piece (423) is connected to the storage frame (406). The lower end of the connecting piece (423) is provided with an oscillator (424).

7. A PVC film edge-cutting device according to claim 6, characterized in that: The fixing plate (31) is provided with a limiting spring (425) at one end near the connecting piece (423), and the limiting spring (425) is connected to the connecting piece (423).

8. A PVC film edge-cutting device according to claim 2, characterized in that: The surface of the operating platform (2) is provided with a material discharge slope (21).

9. A PVC film edge-cutting device according to claim 8, characterized in that: The operating platform (2) is rotatably connected to a rotating rod (412). One end of the rotating rod (412) is provided with a pick plate (405), and the other end of the rotating rod (412) is provided with a sliding block (428). The surface of the sliding block (428) is provided with a stop block (430). The operating platform (2) is rotatably connected to a rotating shaft (426) at one end near the rotating rod (412). The surface of the rotating shaft (426) is provided with a toothed block (427). The lower end of the stop plate (410) is provided with a connecting plate (411), and the lower end of the connecting plate (411) is provided with a return spring (431).

10. A PVC film edge-cutting device according to claim 9, characterized in that: One end of the feed roller (432) is fitted with a first track (409), and the surface of the rotating shaft (426) is fitted with a second track (429), and the first track (409) is connected to the second track (429).

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