A winding device for PVC film processing

Abstract

The present invention relates to the field of PVC film winding, and discloses a winding device for PVC film processing, comprising a processing frame and a winding roller, wherein a switching storage structure is arranged at the left end of the processing frame, a winding rod is rotatably passed through a position near the right end of the processing frame, a motor is installed at the front of the processing frame at the position of the winding rod, one end of the motor output shaft is connected with one end of the winding rod, a winding roller is fixedly sleeved at the middle of the winding rod, a film pasting structure is arranged at the right end of the processing frame, a traction structure is arranged at the left position in the processing frame, and a film guiding structure is arranged in the middle of the processing frame, the traction structure can automatically pull one end of the processed film onto the winding roller, and then cooperate with the film pasting structure to automatically adhere one end of the film to the winding roller, so that the winding roller can smoothly perform the winding work when rotating, so that the operation saves time and labor, and improves the work efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of PVC film winding, and in particular to a winding device used for PVC film processing. Background Art

[0002] PVC film is a popular and widely used synthetic material in the world today. The global usage of PVC film ranks second among various synthetic materials. Among the materials that can produce three-dimensional surface films, PVC is the most suitable material. In the process of processing PVC film, winding equipment is needed to wind it.

[0003] The winding device in the prior art is arranged in a Z-shape by the first roller, the second roller, the third roller and the fourth roller, which is beneficial to the plastic film to make the tension of the plastic film uniform during operation by using the Z-shaped structure, thereby avoiding slipping and jamming during operation.

[0004] However, in the actual operation process, one end of the produced film needs to be pulled manually to pass the film around the first roller, the second roller, the third roller and the fourth roller, and one end of the film needs to be wound around the winding roller for winding. This operation is time-consuming and labor-intensive, and reduces the efficiency of the winding work. Therefore, there is room for improvement. Summary of the invention

[0005] In order to solve the problems raised in the above background technology, the present invention provides a winding device for PVC film processing.

[0006] The present invention provides a winding device for PVC film processing, which adopts the following technical solution:

[0007] A winding device for PVC film processing, comprising a processing frame and a winding roller, wherein a switching storage structure is arranged at the left end of the processing frame, a winding rod is rotatably passed through a position near the right end of the processing frame, a motor is installed at the position of the winding rod on the front of the processing frame, one end of the motor output shaft is connected to one end of the winding rod, a winding roller is fixedly sleeved at the middle of the winding rod, a film pasting structure is arranged at the right end of the processing frame, a traction structure is arranged at the left position in the processing frame, and a film guiding structure is arranged in the middle of the processing frame;

[0008] The traction structure includes fixed blocks installed on the inner walls of the front and rear sides of the processing frame near the left edge, a cylinder is installed on the left side of each of the fixed blocks, one end of the cylinder output shaft is connected to the traction plate, a clamping structure is provided on the traction plate, and extrusion rods are connected to the front and rear ends of the traction plate.

[0009] Preferably, the clamping structure includes a clamping frame arranged on the traction plate, both ends of the clamping frame movably pass through the traction plate, a through groove for the clamping frame to pass through is provided on the traction plate, and the two bottom ends of the clamping frame passing through the traction plate are respectively connected to driving plates, a guide groove is provided on the driving plate, and the guide groove is "S" shaped, a bottom block is connected to a position below the traction plate close to the driving plate, a first electric telescopic rod is installed on the bottom block, a driving frame is connected to one end of the output shaft of the first electric telescopic rod, and the driving frame passes through the guide groove.

[0010] Preferably, the film guiding structure comprises a plurality of groups of first guiding grooves provided on the front and rear side surfaces of the processing frame, a first guiding rod is connected between the upper and lower end groove walls of the first guiding groove, a first moving block is movably sleeved on the first guiding rod, a first spring is sleeved on the first guide rod, two ends of the first spring are respectively connected to the first moving block and one end groove wall of the first guiding groove, a lifting rod is connected between the two first moving blocks in each group, a film guiding roller is movably sleeved in the middle of the lifting rod, each of the first moving blocks is connected to a connecting block, an extrusion strip is connected to the connecting block, and the left and right sections of the extrusion strip are symmetrical inclined sections.

[0011] Preferably, the switching storage structure includes a fixed plate connected to the front and rear edges of the left side of the processing frame, each of the fixed plates is connected to a fixed disk on one end away from the processing frame, a rotating rod is rotatably passed through the axial position of the two fixed disks, and a cross plate is fixedly sleeved on the rotating rod at a position close to the rear fixed disk, four storage rods are connected to the cross plate, each of the storage rods is movably sleeved with a storage roller, and the two fixed disks are provided with a taking and placing opening, a limiting plate is provided at the edge of the rear side surface of the front fixed disk, one end face of the storage roller is in contact with the limiting plate, and a positioning structure is provided at the front side of the front fixed disk.

[0012] Preferably, the positioning structure includes an insert plate arranged at one end of the rotating rod passing through the front fixed plate, one end of the insert plate is movably inserted into a plug hole opened on the end face of the rotating rod, an end block is installed on the other end of the insert plate, a third spring is sleeved on the insert plate, two ends of the third spring are respectively connected to the end block and the rotating rod, the end face of the insert plate is in a quadrilateral shape, two positioning rods are symmetrically connected to the end block, and one end of the positioning rod is inserted into the positioning hole opened at a corresponding position on the fixed plate.

[0013] The cam is an L-shaped plate that is fixedly provided with a plurality of locking plates, each of which is provided with a plurality of locking plates, each of which is provided with a plurality of locking plates, each of which is provided with a plurality of locking plates.

[0014] Preferably, the extrusion structure includes a second guide groove opened on each L-shaped plate, a second guide rod is connected to the groove wall at one end of the second guide groove, a second movable block is movably sleeved on the second guide rod at one end close to the winding rod, a second spring is sleeved on the second guide rod, two ends of the second spring are respectively connected to the second movable block and the groove wall at one end of the second guide groove, a longitudinal rod is rotatably connected between the two second movable blocks, and an extrusion roller is fixedly sleeved in the middle of the longitudinal rod.

[0015] In summary, the present invention includes the following beneficial technical effects:

[0016] The present invention provides a traction structure, a clamping structure and a film-sticking structure on the processing frame. The traction structure can automatically pull one end of the processed film to the winding roller, and then cooperate with the film-sticking structure to automatically stick one end of the film to the winding roller, so that the winding roller can smoothly carry out the winding work when rotating, which saves time and labor and improves work efficiency; and an extrusion structure is provided on the L-shaped plate of the film-sticking structure, which can extrude the film on the winding roller during the process of the winding roller rotating to roll up the film, thereby improving the winding quality;

[0017] The present invention provides a film guide structure on the processing frame, and the film is passed around the film guide roller of the film guide structure, which can reduce the situation of grinding and blocking, and improve the winding quality. In addition, an extrusion rod is provided on the traction structure, and an extrusion strip is provided on the film guide structure. In this way, in the process of traction of the film, the extrusion rod is used to squeeze the extrusion strip, so that the multiple film guide rollers can be automatically pushed to move upward and downward in sequence, so that the film can be smoothly passed around the multiple film guide rollers for winding;

[0018] The present invention provides a switching storage structure and a positioning structure on the processing frame. After one group of films is wound up, the remaining films can be promptly switched for winding up, and the taking and placing of the films to be wound up is also convenient. At the same time, the positioning structure is used to facilitate the positioning of the switching storage structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a winding device for PVC film processing in an embodiment of the present invention;

[0020] Figure 2 In the embodiment of the present invention Figure 1 A magnified view of the structure at A;

[0021] Figure 3 It is a structural schematic diagram of the soul storage structure in an embodiment of the present invention;

[0022] Figure 4 In the embodiment of the present invention Figure 3 A magnified view of the structure at B;

[0023] Figure 5 It is a schematic diagram of the structure of the upper limit plate of the fixed disk in an embodiment of the present invention;

[0024] Figure 6 is a structural schematic diagram of a traction structure in an embodiment of the present invention;

[0025] Figure 7 In the embodiment of the present invention Figure 6 A magnified view of the structure at C;

[0026] Figure 8 is a structural schematic diagram of a film-attaching structure in an embodiment of the present invention;

[0027] Fig. 9 In the embodiment of the present invention Figure 8 Enlarged view of the structure at D.

[0028] Description of the accompanying drawings: 1, processing frame; 2, winding rod; 3, winding roller; 4, motor; 5, fixed block; 6, traction plate; 7, cylinder; 8, extrusion rod; 9, clamping frame; 10, through groove; 11, driving plate; 12, bottom block; 13, first electric telescopic rod; 14, driving frame; 15, guide groove; 16, film guide roller; 17, lifting rod; 18, first moving block; 19, first guide groove; 20, first guide rod; 21, first spring; 22, connecting block; 23, extrusion strip; 24, fixed plate; 25, fixed plate; 26, rotating rod; 27, cross plate; 2 8. Storage roller; 29. ​​Limit plate; 30. Take-in and put-out port; 31. Storage rod; 32. Squeeze roller; 33. Second moving block; 34. Second spring; 35. Longitudinal rod; 36. Insert plate; 37. End block; 38. Third spring; 39. Positioning rod; 40. Positioning hole; 41. Bottom plate; 42. Bump; 43. Second electric telescopic rod; 44. U-shaped frame; 45. Vertical plate; 46. Slot; 47. L-shaped plate; 48. Film-laminating roller; 49. Insert rod; 50. First transverse groove; 51. Arc groove; 52. Second transverse groove; 53. Second guide groove; 54. Second guide rod. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1-Figure 9 The present invention is described in further detail.

[0030] The embodiment of the present invention discloses a winding device for PVC film processing, including a processing frame 1 and a winding roller 3, a switching storage structure is arranged at the left end of the processing frame 1, a winding rod 2 is rotatably passed through the position near the right end of the processing frame 1, a motor 4 is installed at the position of the winding rod 2 on the front of the processing frame 1, one end of the output shaft of the motor 4 is connected to one end of the winding rod 2, a winding roller 3 is fixedly sleeved at the middle of the winding rod 2, a film pasting structure is arranged at the right end of the processing frame 1, a traction structure is arranged at the left position inside the processing frame 1, and a winding roller 3 is arranged at the middle of the processing frame 1. A film guide structure is provided; the traction structure includes a fixed block 5 installed on the inner wall of the front and rear sides of the processing frame 1 near the left edge, and a cylinder 7 is installed on the left side of each fixed block 5. One end of the output shaft of the cylinder 7 is connected to the traction plate 6, and a clamping structure is provided on the traction plate 6. The front and rear ends of the traction plate 6 are connected to an extrusion rod 8; the clamping structure includes a clamping frame 9 provided on the traction plate 6, and the two ends of the clamping frame 9 movably pass through the traction plate 6. The traction plate 6 is provided with a through groove 10 for the clamping frame 9 to pass through, and the two bottom ends of the clamping frame 9 passing through the traction plate 6 are respectively connected with belts The driving plate 11 is provided with a guide groove 15, and the guide groove 15 is in an "S" shape. A bottom block 12 is connected to a position near the driving plate 11 below the traction plate 6. A first electric telescopic rod 13 is installed on the bottom block 12. A driving frame 14 is connected to one end of the output shaft of the first electric telescopic rod 13. The driving frame 14 passes through the guide groove 15, and one end of the film to be rolled up is placed on the traction plate 6. The first electric telescopic rod 13 on the bottom block 12 is started, and the driving frame 14 is driven to move in the guide groove 15 toward the side close to the bottom block 12. The driving frame 14 is used to The squeezing of the groove wall of the guide groove 15 pulls the clamping frame 9 to move downward on the traction plate 6, and then clamps one end of the film on the traction plate 6, and then starts the cylinder 7 to drive the traction plate 6 and the film to move toward one side of the winding roller 3. When the traction plate 6 moves to the upper right front of the winding roller 3, the first electric telescopic rod 13 is started to drive the driving frame 14 to move in the opposite direction in the guide groove 15, and pushes the clamping frame 9 to move upward on the traction plate 6, releases the film on the traction plate 6, and the traction plate 6 continues to move, and the film that falls off the traction plate 6 falls onto the winding roller 3 to carry out the winding work.

[0031] See also Figure 1 , Figure 2 and Figure 6The film guiding structure includes a plurality of groups of first guide grooves 19 provided on the front and rear side surfaces of the processing frame 1, a first guide rod 20 is connected between the upper and lower end groove walls of the first guide groove 19, a first moving block 18 is movably sleeved on the first guide rod 20, a first spring 21 is sleeved on the first guide rod 20, two ends of the first spring 21 are respectively connected to the first moving block 18 and one end groove wall of the first guide groove 19, a lifting rod 17 is connected between the two first moving blocks 18 of each group, a film guiding roller 16 is movably sleeved at the middle of the lifting rod 17, and each first moving block 18 The connecting blocks 22 are connected to the connecting blocks 22, and the extrusion strips 23 are connected to the connecting blocks 22. The left and right sections of the extrusion strips 23 are symmetrically inclined sections. When the traction plate 6 moves toward the side close to the winding roller 3, the extrusion rods 8 on the traction plate 6 squeeze the multiple extrusion strips 23 in turn to push the multiple film guide rollers 16 to move upward or downward in turn, and when the extrusion rods 8 are detached from the corresponding extrusion strips 23, the first spring 21 is used to reset the corresponding film guide roller 16, so that the film guide roller 16 can be attached to the film, so that the tension of the film is more uniform, and the slippage and jamming are reduced.

[0032] See also Figure 1 , Figure 3 , Figure 4 , Figure 5 , Figure 8 and Fig. 9The switching storage structure includes a fixed plate 24 connected to the front and rear edges of the left side of the processing frame 1, and each fixed plate 24 is connected to a fixed disk 25 at one end away from the processing frame 1. A rotating rod 26 rotates through the axial position of the two fixed disks 25, and a cross plate 27 is fixedly sleeved at the position of the rotating rod 26 near the rear fixed disk 25. The cross plate 27 is connected to four storage rods 31, and each storage rod 31 is movably sleeved with a storage roller 28. The two fixed disks 25 are provided with a take-in and put-out opening 30. A limiting plate 29 is provided at the edge of the rear side of the fixed disk 25 on the front side, and one end face of the storage roller 28 is attached to the limiting plate 29. A positioning structure is provided at the front of the front fixed disk 25. The four storage rods 31 can be used to store the film to be rolled up, and when the storage rod 31 is rotated to the position of the take-in and put-out opening 30, it is convenient to take and put the film at the take-in and put-out opening 30, and a storage rod 31 at the take-in and put-out opening 30 is sleeved with a storage roller 28 storing the film. After the roller 28 is released, the cross plate 27 is driven to rotate by the rotating rod 26, and the limiting plate 29 guides the storage roller 28, so that the film can be pushed to the corresponding position on the storage rod 31, thereby improving the winding quality; the positioning structure includes a plug plate 36 arranged at one end of the rotating rod 26 passing through the front fixed plate 25, one end of the plug plate 36 is movably inserted into the plug hole provided on the end surface of the rotating rod 26, and an end block 37 is installed on the other end of the plug plate 36, and a third elastic member is sleeved on the plug plate 36 Spring 38, two ends of the third spring 38 are connected to the end block 37 and the rotating rod 26 respectively, the end surface of the plug plate 36 is in a quadrilateral shape, and two positioning rods 39 are symmetrically connected to the end block 37, one end of the positioning rod 39 is inserted into the positioning hole 40 at the corresponding position on the fixed plate 25, and the elastic force of the third spring 38 can be used to pull one end of the positioning rod 39 into the positioning hole 40 at the corresponding position, thereby positioning the cross plate 27 and the rotating rod 26 as a whole on the fixed plate 25;

[0033] The film pasting structure includes a bottom plate 41 connected to the right edge of the inner wall on both sides of the processing frame 1, a protrusion 42 is installed on the right edge of the bottom plate 41, and a second electric telescopic rod 43 is installed on the protrusion 42. A U-shaped frame 44 is connected to one end of the output shaft of the second electric telescopic rod 43, and the bottom of the U-shaped frame 44 is attached to the bottom plate 41. Slots 46 are provided at the top end faces of both ends of the U-shaped frame 44, and vertical plates 45 are movably inserted into the two slots 46. L-shaped plates 47 are respectively connected to the top ends of the two vertical plates 45. An insertion rod 49 is fixedly passed through the corners of the two L-shaped plates 47, and a film pasting roller 48 is movably sleeved on the middle of the insertion rod 49. A first transverse groove 50 is provided on the inner wall on both sides of the processing frame 1 at the end of the insertion rod 49, and an arc groove 51 is provided on the groove wall at one end of the first transverse groove 50. The arc groove 51 is at the same position as the axis of the winding rod 2. A second transverse groove 52 is provided on the groove wall at one end of 51, and an extrusion structure is provided on the two L-shaped plates 47. When one end of the film falls onto the winding roller 3, the second electric telescopic rod 43 on the protrusion 42 is started to drive the U-shaped frame 44 to move in the direction close to the winding roller 3, and drive one end of the insertion rod 49 to slide in the first transverse groove 50. When one end of the insertion rod 49 slides in the arc groove 51, the vertical plate 45 is moved in the slot 46 of the U-shaped frame 44 to drive the film-laminating roller 48 to move around the winding roller 3, and then one end of the film pressed against is wound around the winding roller 3. At this time, when the motor 4 is started to drive the winding roller 3 to rotate, the film can be wound on the winding roller 3. During the winding process, the second electric telescopic rod 43 is continued to be started to drive the U-shaped frame 44 to move, so as to drive the insertion rod 49 to slide in the second transverse groove 52, so that the film-laminating roller 48 is separated from the winding roller 3.

[0034] The extrusion structure includes a second guide groove 53 provided on each L-shaped plate 47, a second guide rod 54 is connected to one end of the second guide groove 53, a second moving block 33 is movably sleeved on the second guide rod 54 at one end near the winding rod 2, a second spring 34 is sleeved on the second guide rod 54, two ends of the second spring 34 are respectively connected to the second moving block 33 and one end of the second guide groove 53, a longitudinal rod 35 is rotatably connected between the two second moving blocks 33, and a fixed portion in the middle of the longitudinal rod 35 is fixed to the longitudinal rod 35. The fixed sleeve is provided with a squeezing roller 32, and the second electric telescopic rod 43 drives the U-shaped frame 44 to move, so as to drive one end of the insertion rod 49 to slide to the groove wall of the second transverse groove 52 at one end away from the arc groove 51. The squeezing roller 32 on the L-shaped plate 47 squeezes the film wound on the winding roller 3, thereby improving the winding quality of the film, and the squeezing roller 32 is used to drive the second moving block 33 to move on the second guide rod 54, thereby driving the deformation of the second spring 34, so as not to hinder the continuous winding of the film on the winding roller 3.

[0035] The implementation principle of a winding device for PVC film processing according to an embodiment of the present invention is as follows: first, the winding roller of the wound film is put on the corresponding storage rod 31 from the take-out port 30 of the fixed disk 25, and then one end of the positioning rod 39 is pulled out from the positioning hole 40, and the positioning rod 39 is used to rotate the rotating rod 26 and the cross plate 27 as a whole on the two fixed disks 25 to rotate the film to the highest position, and then one end of the film is pulled out and placed on the middle traction plate 6, and the first electric telescopic rod 13 on the bottom block 12 is started to drive the driving frame 14 to move in the guide groove 15 toward the direction close to the bottom block 12, and the groove wall of the guide groove 15 is pressed against the guide groove 15. The clamping frame 9 is squeezed and pulled up and down on the traction plate 6, one end of the film is clamped on the traction plate 6, and then the cylinder 7 on the fixed block 5 is started, and the cylinder 7 drives the traction plate 6 and the film to move as a whole toward the direction of the winding roller 3. When the traction plate 6 moves to the upper right front of the winding roller 3, the first electric telescopic rod 13 is started to drive the driving frame 14 to move in the opposite direction in the guide groove 15, and the clamping frame 9 is pushed up on the traction plate 6 to release the film on the traction plate 6, and the traction plate 6 continues to move, and the film that falls off the traction plate 6 falls onto the winding roller 3, and in the process of the traction plate 6 moving, the squeezing rod 8 on the traction plate 6 follows The plurality of extrusion bars 23 are squeezed at a time to push the plurality of film guide rollers 16 to move upward or downward in sequence, and when the extrusion rod 8 is detached from the corresponding extrusion bar 23, the first spring 21 is used to reset the corresponding film guide roller 16 so that the film guide roller 16 can be attached to the film, so that the tension of the film is more uniform, and the slippage and jamming are reduced. Then, the second electric telescopic rod 43 on the protrusion 42 is started to drive the U-shaped frame 44 to move toward the direction close to the winding roller 3, and drive one end of the insertion rod 49 to slide in the first transverse groove 50. When one end of the insertion rod 49 slides in the arc groove 51, the vertical plate 45 is used to move in the U-shaped frame. The movement in the slot 46 of 44 drives the film-laminating roller 48 to move around the winding roller 3, and then winds one end of the film pressed against the winding roller 3. At this time, when the motor 4 is started to drive the winding roller 3 to rotate, the film can be rolled up on the winding roller 3. During the rolling process, the second electric telescopic rod 43 is continued to be started to drive the U-shaped frame 44 to move, so as to drive the insertion rod 49 to slide in the second transverse groove 52, so that the film-laminating roller 48 is separated from the winding roller 3. As the U-shaped frame 44 moves, the squeezing roller 32 can be driven to move and press against the film rolled up by the winding roller 3 to improve the film rolling quality, thereby realizing the film rolling work.

[0036] The above are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A winding device for PVC film processing, comprising a processing frame and a winding roller, characterized in that: A switching storage structure is provided at the left end of the processing frame, a winding rod is rotatably passed through the position near the right end of the processing frame, a motor is installed at the position of the winding rod on the front of the processing frame, one end of the motor output shaft is connected to one end of the winding rod, a winding roller is fixedly sleeved at the middle of the winding rod, a film pasting structure is provided at the right end of the processing frame, a traction structure is provided at the left position in the processing frame, and a film guiding structure is provided in the middle of the processing frame; The traction structure includes fixed blocks installed on the inner walls of the front and rear sides of the processing frame near the left edge, a cylinder is installed on the left side of each fixed block, one end of the cylinder output shaft is connected to the traction plate, a clamping structure is provided on the traction plate, and extrusion rods are connected to the front and rear ends of the traction plate; The film guiding structure includes a plurality of groups of first guiding grooves provided on the front and rear side surfaces of the processing frame, a first guiding rod is connected between the upper and lower end groove walls of the first guiding groove, a first moving block is movably sleeved on the first guiding rod, a first spring is sleeved on the first guide rod, two ends of the first spring are respectively connected to the first moving block and one end groove wall of the first guiding groove, a lifting rod is connected between the two first moving blocks in each group, a film guiding roller is movably sleeved in the middle of the lifting rod, each of the first moving blocks is connected to a connecting block, an extrusion strip is connected to the connecting block, and the left and right sections of the extrusion strip are symmetrical inclined sections.

2. A winding device for PVC film processing according to claim 1, characterized in that: The clamping structure includes a clamping frame arranged on the traction plate, both ends of the clamping frame movably pass through the traction plate, a through groove for the clamping frame to pass through is provided on the traction plate, and driving plates are respectively connected to the two bottom ends of the clamping frame passing through the traction plate, a guide groove is provided on the driving plate, and the guide groove is in an "S" shape, a bottom block is connected to a position below the traction plate near the driving plate, a first electric telescopic rod is installed on the bottom block, a driving frame is connected to one end of the output shaft of the first electric telescopic rod, and the driving frame passes through the guide groove.

3. The winding device for PVC film processing according to claim 1, characterized in that: The switching storage structure includes a fixed plate connected to the front and rear edges of the left side of the processing frame, and each of the fixed plates is connected to a fixed plate on one end away from the processing frame, and a rotating rod is rotatably passed through the axial position of the two fixed plates, and a cross plate is fixedly sleeved on the rotating rod near the position of the rear fixed plate. Four storage rods are connected to the cross plate, and each of the storage rods is movably sleeved with a storage roller. Both of the fixed plates are opened with a taking and placing opening, and a limiting plate is provided at the edge of the rear side surface of the fixed plate on the front side, one end face of the storage roller is attached to the limiting plate, and a positioning structure is provided at the front side of the fixed plate on the front side.

4. The winding device for PVC film processing according to claim 3, characterized in that: The positioning structure includes an insert plate arranged at one end of the fixed disk on the front side of the rotating rod, one end of the insert plate is movably inserted into a plug hole opened on the end face of the rotating rod, an end block is installed on the other end of the insert plate, a third spring is sleeved on the insert plate, two ends of the third spring are respectively connected to the end block and the rotating rod, the end face of the insert plate is in a quadrilateral shape, two positioning rods are symmetrically connected to the end block, and one end of the positioning rod is inserted into a positioning hole opened at a corresponding position on the fixed disk.

5. The winding device for PVC film processing according to claim 1, characterized in that: The cam is an L-shaped plate that is fixedly provided with a plurality of L-shaped plates, each of which is provided with a plurality of L-shaped plates, and a plurality of L-shaped plates are provided with a plurality of L-shaped plates.

6. The winding device for PVC film processing according to claim 5, characterized in that: The extrusion structure includes a second guide groove opened on each L-shaped plate, a second guide rod is connected to the groove wall at one end of the second guide groove, a second movable block is movably sleeved on the second guide rod at one end close to the winding rod, a second spring is sleeved on the second guide rod, two ends of the second spring are respectively connected to the second movable block and the groove wall at one end of the second guide groove, a longitudinal rod is rotatably connected between the two second movable blocks, and an extrusion roller is fixedly sleeved in the middle of the longitudinal rod.

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