Automatic winding machine and winding method for PVC film processing

Abstract

The present invention relates to the technical field of PVC film processing, specifically to an automatic winding machine and winding method for PVC film processing, including a bracket, a driving component, an adjusting component and a positioning component, wherein the adjusting component drives the first support plate and the fin to move through the extension and contraction of the hydraulic cylinder. Before winding, the material receiving roller can be easily sleeved on the fin supported by the end of the hydraulic cylinder in the extended state, at which time the fin is in a contracted state, which is convenient for placing the material receiving roller, and the fin is unfolded to abut against the inner wall of the material receiving roller, and works together with the positioning component to stably limit the material receiving roller to ensure the stability of the material receiving roller during the winding process; after the winding is completed, the hydraulic cylinder is extended, the fin is contracted, and the push plate and the baffle can push the material roller to move, which is convenient for unloading; the connecting plate and the push plate in the unloading component are arranged on the second sleeve, and are staggered with the second support plate. When the hydraulic cylinder is extended, the push plate and the baffle can stably push the material roll to make the side of the material roll flush.

Description

Technical Field

[0001] The present invention relates to the technical field of PVC film processing, and in particular to an automatic winding machine and a winding method for PVC film processing. Background Art

[0002] PVC film, or polyvinyl chloride film, is a film made of polyvinyl chloride resin as the main raw material, with appropriate amounts of plasticizers, stabilizers, lubricants and other additives added, and processed through calendering, blow molding and other processes;

[0003] When winding a narrow PVC film, if a double-sided limited winding roller is used, it will be inconvenient to load and unload the material. In addition, the PVC film needs to be repackaged after being wound onto the material roller, and the flatness of the winding needs to be ensured. However, the transmission winding device is not convenient for stably positioning the winding roller. During the winding process, the material is easily offset, resulting in curling, which is inconvenient to use. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies of the prior art, the present invention provides an automatic winding machine and a winding method for PVC film processing.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an automatic winding machine for PVC film processing, comprising a bracket, a driving assembly, an adjusting assembly and a positioning assembly, the bracket being fixed on the ground in an L shape, the adjusting assembly comprising a hydraulic cylinder, a first bearing, a second bearing, a first sleeve, a second sleeve, a guide plate, a first support plate, a limiter, a second support plate, a hinged rod and a fin, the fixed end of the hydraulic cylinder passes through the bracket and is sleeved with the first bearing, the output end of the hydraulic cylinder is sleeved with the second bearing, the outer side of the first bearing is sleeved with the first sleeve, the outer side of the second bearing is sleeved with the second sleeve, the outer side of the first sleeve is sleeved with the guide plate, a plurality of groups of guide holes are arranged on the guide plate, one end of the first support plate passes through the guide holes and passes through the

[0008] The limiting member is slidably connected with the guide plate, a fin is further provided on the other end of the first support plate away from the hydraulic cylinder, a plurality of groups of second support plates adapted to the first support plate are further provided on the second shaft sleeve, a plurality of groups of parallelly arranged hinged rods are provided between the corresponding first support plate and the second support plate, and both ends of the hinged rods are respectively hinged to the first support plate and the second support plate;

[0009] The fin is L-shaped, and a positioning component is provided near the feed end of the adjustment component;

[0010] The bracket is provided with a driving component for driving the first shaft sleeve.

[0011] In order to facilitate and stably drive the guide plate to rotate, the present invention has been improved in that the driving assembly includes a motor, a driving gear, a driven gear and a chain, the motor is fixed to the side wall of the bracket, the driving gear is arranged at the output end of the motor, the driven gear is arranged on the end of the first sleeve away from the guide plate, and the driving gear and the driven gear are connected by a chain.

[0012] In order to stably limit the winding roller, the present invention has improvements in that the positioning assembly includes a mounting frame, a first elastic member, a slide plate, a positioning block and a guide block, the mounting frame is provided with a movable groove at one end away from the bracket, the slide plate is slidably provided in the movable groove, a first elastic member connected to the movable groove wall is provided at one end of the slide plate, the first elastic member is provided in two groups symmetrically arranged on both sides of the positioning block, a positioning block passing through the mounting frame and the fin is further provided on the slide plate, a guide block protruding from the mounting frame is provided at the other end of the slide plate, an oblique groove is provided on the guide block away from one end of the slide plate, and a shift block contacting with the oblique groove is further provided on the second sleeve.

[0013] In order to facilitate the material roller to move stably on the fins, the present invention has an improvement in that a material unloading assembly is also provided on the second sleeve, and the material unloading assembly includes a connecting plate and a push plate. A plurality of groups of connecting plates are also provided on the second sleeve, and the connecting plates are arranged alternately with the second support plates. The push plate is provided on one end of the connecting plate close to the guide plate.

[0014] In order to prevent the material roller from rotating after winding is completed, resulting in the material being unwound, the present invention has improvements in that the unloading assembly also includes an auxiliary plate, a second elastic member, a top plate, a pressure plate and an inclined block, the auxiliary plates are also arranged on both sides of the push plate away from the second shaft sleeve, the auxiliary plate is provided with a second elastic member connected to the top plate, the top plate is provided with the pressure plate at one end away from the guide plate,

[0015] The length of the pressure plate is consistent with the length of the side wall of the fin close to the guide plate. The guide plate is also provided with an inclined block, which is arranged between the corresponding two groups of the second elastic members. The top plate is provided with a notch adapted to the inclined block.

[0016] In order to ensure that the baffle plate, auxiliary plate and push plate stably push the material roll, the present invention has an improvement in that an auxiliary groove is further provided at the end of the auxiliary plate away from the guide disk, and a baffle plate slidably connected to the auxiliary groove is further provided on the top plate, and the baffle plate, auxiliary plate and push plate are flush with the side away from the guide disk.

[0017] Preferably, a buffer pad is further provided at one end of the pressure plate close to the second sleeve.

[0018] Preferably, the limiting member includes an insert rod and a roller, two groups of insert rods are arranged on the first support plate, the insert rods are arranged on both sides of the guide plate, and rollers in contact with the guide plate are arranged at both ends of the insert rods. Preferably, the auxiliary plate is also provided with reinforcing ribs connected to the push plate.

[0019] The present invention further provides a winding method of an automatic winding machine for PVC film processing, comprising the following steps:

[0020] Step 1, sleeve the receiving roller on the fin supported by the end of the hydraulic cylinder in the extended state, at this time, the first elastic member is in the extended state, the end of the positioning block does not protrude from the fin, and the end of the receiving roller is in contact with the side wall of the fin;

[0021] Step 2: The fixed end of the hydraulic cylinder drives its output end to contract under the support of the bracket. At this time, the second support plate on the second roller sleeve pushes the hinge rod, and the hinge rod pushes the fins of the first support plate to move away from the second sleeve until several groups of fins are against the inner wall of the receiving roller sleeve. In the above process, the shift block moves toward the guide block, and the guide block drives the slide plate to squeeze the first elastic member, and then the slide plate drives the positioning block to protrude from the fin. The positioning block is also provided with a chamfer near the end of the guide plate. When the fin is fully unfolded, the chamfered part of the positioning block completely protrudes from the fin, and the receiving roller sleeve is fixed between the side wall of the fin and the positioning block. In the above process, the inclined block pushes the top plate to move toward the end away from the second sleeve until the push plate contacts the guide plate.

[0022] Step 3: Start the motor, the motor drives the driving gear to rotate, and the driving gear drives the driven gear to rotate.

[0023] The driven gear drives the first sleeve to rotate, and then the guide plate drives the fin and the second sleeve to rotate to perform the winding operation;

[0024] Step 4: When the thickness of the quantitatively wound material roll is within the stroke of the pressing plate, the motor stops rotating and the material is unloaded. The output end of the hydraulic cylinder extends to drive the second sleeve to move, and the fin moves toward the second sleeve. At first, the push plate and the baffle plate do not contact the material roll. As the hydraulic cylinder extends, the shift block and the guide block are misaligned, and the first elastic member pushes the slide plate to reset. At this time, the positioning block is completely retracted into the fin. As the hydraulic cylinder further extends, the baffle plate and the push plate contact the material roller and push the material roller to move.

[0025] Step 5: When the baffle plate and the push plate push the material roller to move, as the top plate moves away from the inclined block, the second elastic member adaptively contracts until the pressure plate of the buffer pad contacts the material, and then the material is manually unloaded.

[0026] (III) Beneficial effects

[0027] Compared with the prior art, the present invention provides an automatic winding machine and winding method for PVC film processing, which have the following beneficial effects:

[0028] In the automatic winding machine and winding method for PVC film processing, the adjustment component drives the first support plate and the fin to move through the extension and retraction of the hydraulic cylinder. Before winding, the winding roller can be easily placed on the fin supported by the end of the hydraulic cylinder in the extended state. At this time, the fin is in a retracted state, which is convenient for placing the winding roller. The fin is unfolded and abuts against the inner wall of the winding roller, and works together with the positioning component to stabilize the winding roller, ensure the stability of the winding roller during the winding process, and improve the winding quality.

[0029] After winding is completed, the hydraulic cylinder extends, the fins shrink, and the push plate and baffle can push the material roller to move, making it easier to unload the material, solving the problem of inconvenient loading and unloading of the double-sided limited winding roller;

[0030] The connecting plate and the push plate in the material unloading assembly are arranged on the second shaft sleeve and staggered with the second support plate. When the hydraulic cylinder is extended, the push plate and the baffle plate can stably push the material roll to make the side of the material roll flush;

[0031] The auxiliary plate, the second elastic member, the top plate, the pressure plate and the inclined block in the unloading assembly work together. During the winding process, the inclined block pushes the top plate to make the pressure plate away from the guide plate without affecting the winding. When the unloading is completed, as the hydraulic cylinder extends, the top plate moves away from the inclined block, and the second elastic member contracts, driving the pressure plate to

[0032] The rollers touch the material to prevent the material from unwinding after the winding is completed, thus ensuring the integrity of the wound material. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] FIG1 is a front view schematic diagram of the unfolded fin structure of the present invention;

[0034] FIG2 is a schematic diagram of the fin structure of the present invention when the material roller is assembled;

[0035] FIG3 is a schematic back view of the unfolded fin structure of the present invention;

[0036] FIG4 is a schematic diagram of the fin structure of the present invention in an unfolded state without a bracket and a guide plate;

[0037] Figure 5 shows the structure of the present invention Figure 4 A partial enlarged schematic diagram in the middle;

[0038] FIG6 is a schematic diagram of the fin contraction structure of the present invention;

[0039] FIG. 7 is a schematic diagram of the assembly of the structural shift block and the positioning assembly of the present invention;

[0040] FIG8 is a partial schematic diagram of the structure of the present invention when the fin is in a retracted state;

[0041] FIG. 9 is a schematic diagram of the assembly of the second sleeve, a set of blanking components and a guide plate of the structure of the present invention.

[0042] In the figure: 1, bracket; 2, hydraulic cylinder; 3, first bearing; 4, second bearing; 5, first sleeve;

[0043] 6. Second sleeve; 7. Guide plate; 8. First support plate; 9. Second support plate; 10. Articulated rod; 11. Fin; 12. Motor; 13. Driving gear; 14. Driven gear; 15. Chain; 16. Mounting frame; 17. First elastic member; 18. Slide plate; 19. Positioning block; 20. Guide block; 21. Dial block; 22. Connecting plate; 23. Push plate; 24. Auxiliary plate; 25. Second elastic member; 26. Top plate; 27. Press plate;

[0044] 28. Inclined block; 29. ​​Baffle; 30. Buffer pad; 31. Insert rod; 32. Roller; 33. Reinforcement rib. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0046] Please refer to Figure 1- Fig. 9 An automatic winding machine for PVC film processing includes a bracket 1, a driving component, an adjusting component and a positioning component. The bracket 1 is fixed on the ground in an L shape. The adjusting component includes

[0047] A hydraulic cylinder 2, a first bearing 3, a second bearing 4, a first sleeve 5, a second sleeve 6, a guide plate 7, a first support plate 8, a stopper, a second support plate 9, an articulated rod 10 and a fin 11. The fixed end of the hydraulic cylinder 2 passes through the bracket 1 and is sleeved with the first bearing 3. The output end of the hydraulic cylinder 2 is sleeved with the second bearing 4. The first sleeve 5 is sleeved on the outer side of the first bearing 3. The second sleeve 6 is sleeved on the outer side of the second bearing 4. The guide plate 7 is sleeved on the outer side of the first sleeve 5. Several groups of guide holes are arranged on the guide plate 7. One end of the first support plate 8 passes through the guide holes and is slidably connected to the guide plate 7 through the stopper. The other end of the first support plate 8 is further provided with a fin 11 on the side away from the hydraulic cylinder 2. Several groups of second support plates 9 matched with the first support plate 8 are further provided on the second sleeve 6. Several groups of parallel articulated rods 10 are arranged between the corresponding first support plate 8 and the second support plate 9. The articulated rod 10 Both ends are hinged to the first support plate 8 and the second support plate 9 respectively;

[0048] The bracket 1 is fixed on the ground to provide stable support for the hydraulic cylinder 2 and the driving assembly. The hydraulic cylinder 2 is in an extended state, the first support plate 8 and the fin 11 are close to the second shaft sleeve 6, and the fin 11 is in a retracted state. At this time, the receiving roller can be easily sleeved on the fin 11, and the end of the receiving roller fits the side wall of the fin 11. The fin 11 is L-shaped. The fin 11 is provided with a positioning assembly near the feed end of the adjustment assembly, and the output end of the positioning assembly does not protrude from the fin 11 to limit the receiving roller;

[0049] The fixed end of the hydraulic cylinder 2 is supported by the bracket 1, and its output end contracts. The second support plate 9 on the second sleeve 6 pushes the hinge rod 10, and the hinge rod 10 drives the first support plate 8 and the fin 11 away from the second sleeve 6 until the fin 11 abuts against the inner wall of the receiving roller sleeve. During this process, a limiter slidably connected to the guide plate 7 is provided on the first support plate 8 to ensure that the fin 11 with the first support plate 8 can only move linearly along the slide hole;

[0050] When the hydraulic cylinder 2 contracts to expand the fin 11, the output end of the positioning assembly protrudes from the fin 11, so that the material roller is stably fixed between the side wall of the fin 11 and the output end of the positioning assembly, ensuring the stability of the material roller fixation;

[0051] In this embodiment, the driving assembly includes a motor 12, a driving gear 13, a driven gear 14 and

[0052] The motor 12 is fixed to the side wall of the bracket 1, the output end of the motor 12 is provided with the driving gear 13, the end of the first sleeve 5 away from the guide plate 7 is provided with a driven gear 14, the driving gear 13 and the driven gear 14 are connected by the chain 15, the motor 12 is started, the output end of the motor 12 drives the driving gear 13 to rotate, the driving gear 13 drives the driven gear 14 to rotate through the chain 15, and the driven gear 14 drives the first sleeve 5 to rotate. The first sleeve 5 drives the outer guide plate 7 to rotate, and then the guide plate 7 drives the fin 11 and the second sleeve 6 connected to the fin 11 to rotate, so as to realize the winding operation of the PVC film on the receiving roller.

[0053] In actual use, when the material roller completes loading, the positioning assembly positions the material roller. When winding is completed, the output end of the positioning assembly is first stored. The positioning assembly includes a mounting frame 16, a first elastic member 17, a slide plate 18, a positioning block 19 and a guide block 20. The mounting frame 16 is provided with a movable groove at one end away from the bracket 1, and the slide plate 18 is slidably provided in the movable groove. One end of the slide plate 18 is provided with a first elastic member 17 connected to the movable groove wall. The first elastic member 17 is provided in two groups symmetrically arranged on both sides of the positioning block 19. The slide plate 18 is also provided with a positioning block 19 that passes through the mounting frame 16 and the fin 11. The other end of the slide plate 18 is provided with a guide block 20 protruding from the mounting frame 16. The guide block 20 is provided with an oblique groove at one end away from the slide plate 18. The second shaft sleeve 6 is also provided with a shifting block 21 in contact with the oblique groove. In the initial state, the hydraulic cylinder 2 is in an extended state, and the second shaft sleeve 6 is in an extended state. The shift block 21 is misaligned with the guide block 20. At this time, the first elastic member 17 pushes the slide plate 18, and the positioning block 19 is completely retracted into the fin 11. As the hydraulic cylinder 2 contracts, the shift block 21 of the second sleeve 6 moves toward the guide block 20 and contacts its inclined groove. Even if the second fin 11 moves away from the second sleeve 6, the first elastic member 17 is still compressed, and the positioning block 19 protrudes from the fin 11, so that the material roll is fixed between the positioning block 19 and the side wall of the fin 11. Finally, when the material roll is unloaded, the hydraulic cylinder 2 extends, the shift block 21 is first misaligned with the guide block 20, and the positioning block 19 is retracted into the fin 11 again. It should be noted that the end of the fin 11 away from the side wall is longer than the second sleeve 6 when the hydraulic cylinder 2 is in a fully extended state, that is, there will be no step-type unloading. When the material roll is separated from the fin 11, it will no longer be stuck by the second sleeve 6 in the vertical section. At this time, the shifting block 21

[0054] The fin 11 will not be pressed against, and the first support plate 8 and the second support plate 9 will not be in contact.

[0055] When the material roll is wound up, if its side wall is not aligned and the free end of the roll is not pasted and fixed, the material is likely to be loose and partially curled. For this reason, a material unwinding component is also provided on the second shaft sleeve 6, and the material unwinding component includes a connecting plate 22 and a push plate 23. The second shaft sleeve 6 is also provided with a plurality of groups of connecting plates 22, and the connecting plates 22 are arranged alternately with the second support plate 9. The connecting plate 22 is provided with the push plate 23 at one end close to the guide plate 7. After the positioning of the material roll is completed, the push plate 23 contacts the guide plate 7, and the push plate 23 is between the fin 11 and the guide plate 7. When unwinding, the connecting plate 22 drives the push plate 23 to move away from the guide plate 7, and the output end of the positioning component is first stored. Then, as the pusher is further extended, the push plate 23 will contact the material roll to align its side wall.

[0056] In actual use, it is also necessary to prevent the material from loosening after winding. For this purpose, the unloading assembly also includes an auxiliary plate 24, a second elastic member 25, a top plate 26, a pressure plate 27 and an inclined block 28. The auxiliary plate 24 is also provided on both sides of the end of the push plate 23 away from the second shaft sleeve 6. The second elastic member 25 connected to the top plate 26 is provided on the auxiliary plate 24. The pressure plate 27 is provided on the end of the top plate 26 away from the guide plate 7. The length of the pressure plate 27 is consistent with the length of the side wall of the fin 11 close to the guide plate 7. The guide plate 7 is also provided with an inclined block 28, which is arranged between the corresponding two groups of the second elastic members 25. The top plate 26 is provided with a notch adapted to the inclined block 28. Initially, when the material roller is positioned, the inclined block 28 of the guide plate 7 is against the top plate 26 on the side away from the second shaft sleeve 6, and the push plate 23 is away from the second shaft sleeve 6. Auxiliary plates 24 are also provided on both sides of one end, and the auxiliary plates 24 are connected to the top plate 26 through the second elastic member 25. At this time, the second elastic member 25 is in an extended state, and the pressure plate 27 is adapted to the side wall of the fin 11. At this time, the pressure plate 27 does not affect the winding of the material. When the material roll is unloaded, that is, the hydraulic cylinder 2 is extended, and as the connecting plate 22 drives the push plate 23 to move, the second elastic member 25 naturally contracts, and the pressure plate 27 moves toward the second sleeve 6. Several groups of pressure plates 27 adaptively fit the material roll on the fin 11. The pressure plate 27 is also provided with a buffer pad 30 near one end of the second sleeve to stabilize the fit with the material roll and prevent it from loosening. It should be noted that

[0057] During unloading, even if the material roll is not arranged concentrically with the second shaft sleeve 6, the corresponding pressing plate 27 with the buffer pad 30 can still stably contact the material to prevent it from unwinding due to the adaptability of the second elastic member 25. At this time, the second baffle plate 29 will not contact the output end of the hydraulic cylinder 2, and no motion interference will occur. The auxiliary plate 24 is further provided with an auxiliary groove at the end away from the guide plate 7, and the top plate 26 is further provided with a baffle plate 29 slidably connected to the auxiliary groove. The baffle plate 29, the auxiliary plate 24 and the push plate 23 are flush with the side away from the guide plate 7. With the further feeding of the hydraulic cylinder 2, the baffle plate 29 and the push plate 23 stably press against the material roll to make its side walls flush, and then the free end of the material roll is manually fixed before unloading and transfer.

[0058] In this embodiment, the limiting member includes an insertion rod 31 and a roller 32. Two groups of insertion rods 31 are provided on the first support plate 8. The insertion rods 31 are provided on both sides of the guide plate 7. Rollers 32 in contact with the guide plate 7 are provided at both ends of the insertion rods 31. The rollers 32 are slidably connected to the guide plate 7 to ensure the stability of the movement of the first support plate 8.

[0059] In this embodiment, the auxiliary plate 24 is further provided with a reinforcing rib 33 connected to the push plate 23 to ensure the strength of the connection between the auxiliary plate 24 and the push plate 23.

[0060] In this embodiment, the first elastic member 17 and the second elastic member 25 are both composed of a spring and a telescopic rod to ensure the stability of their operation.

[0061] The present invention further provides a winding method of an automatic winding machine for PVC film processing, comprising the following steps:

[0062] Step 1: Cover the receiving roller on the fin 11 supported by the end of the hydraulic cylinder 2 in the extended state. At this time, the positioning block 19 does not protrude, which is convenient for operation;

[0063] Step 2, the hydraulic cylinder 2 contracts, the fin 11 unfolds and presses against the inner wall of the receiving roller, the positioning block 19 protrudes, fixes the receiving roller radially and axially, and at the same time the inclined block 28 pushes the top plate 26 to make the push plate 23 contact the guide plate 7;

[0064] Step 3, the motor 12 drives the driving gear 13, the driven gear 14, the first shaft sleeve 5 and the guide plate 7 to rotate, driving the fin 11 and the second shaft sleeve 6 to rotate, and the PVC film is rolled up;

[0065] Step 4: After winding is completed, the hydraulic cylinder 2 extends, the positioning block 19 retracts, and the baffle 29 and the push plate

[0066] 23 Contact and push the material roller to move;

[0067] Step 5: During the process of pushing the material roller, the pressing plate 27 contacts the material to prevent it from unwinding, and finally the material is unloaded manually.

[0068] Reference to "embodiment" herein means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present application. The term "embodiment" appearing in various places in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or association with other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, the various technical features mentioned in the embodiments can be combined in any way to form a corresponding implementable technical solution.

[0069] Unless otherwise defined, the technical terms used in this document have the same meanings as those generally understood by those skilled in the art to which this application belongs; the use of relevant terms in this document is only for describing specific embodiments and is not intended to limit this application.

[0070] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. An automatic winding machine for PVC film processing, comprising a bracket (1), a driving component, an adjusting component and a positioning component, characterized in that: The bracket (1) is fixed on the ground in an L shape, and the adjustment assembly comprises a hydraulic cylinder (2), a first bearing (3), a second bearing (4), a first bushing (5), a second bushing (6), a guide plate (7), a first support plate (8), a stopper, a second support plate (9), an articulated rod (10) and a fin (11), the fixed end of the hydraulic cylinder (2) passes through the bracket (1) and is sleeved with the first bearing (3), the output end of the hydraulic cylinder (2) is sleeved with the second bearing (4), the first bearing (3) is sleeved with the first shaft sleeve (5) on the outside, the second bearing (4) is sleeved with the second shaft sleeve (6), the first shaft sleeve (5) is sleeved with the guide plate (7) on the outside, the guide plate (7) is provided with a plurality of groups of guide holes, one end of the first support plate (8) passes through the guide holes and is slidably connected to the guide plate (7) through the stopper, the other end of the first support plate (8) is further provided with a fin (11) on the side away from the hydraulic cylinder (2), the second shaft sleeve (6) is further provided with a plurality of groups of second support plates (9) matched with the first support plate (8), a plurality of groups of parallel articulated rods (10) are provided between the corresponding first support plates (8) and the second support plates (9), and the two ends of the articulated rod (10) are respectively articulated to the first support plate (8) and the second support plate (9); The fin (11) is L-shaped, and a positioning component is provided on the fin (11) near the feed end of the adjustment component; The bracket (1) is provided with a driving component for driving the first shaft sleeve (5); The positioning assembly comprises a mounting frame (16), a first elastic member (17), a slide plate (18), a positioning block (19) and a guide block (20); a movable groove is arranged at one end of the mounting frame (16) away from the bracket (1); the slide plate (18) is slidably arranged in the movable groove; a first elastic member (17) connected to the movable groove wall is arranged at one end of the slide plate (18); the first elastic member (17) is arranged in two groups symmetrically arranged on both sides of the positioning block (19); a positioning block (19) penetrating the mounting frame (16) and the fin (11) is also arranged on the slide plate (18); a guide block (20) protruding from the mounting frame (16) is arranged at the other end of the slide plate (18); an oblique groove is arranged at one end of the guide block (20) away from the slide plate (18); and a shifting block (21) in contact with the oblique groove is also arranged on the second shaft sleeve (6).

2. The automatic winding machine for PVC film processing according to claim 1, characterized in that: The driving assembly comprises a motor (12), a driving gear (13), a driven gear (14) and a chain (15); the motor (12) is fixed to a side wall of the bracket (1); the driving gear (13) is arranged at an output end of the motor (12); a driven gear (14) is arranged at an end of the first shaft sleeve (5) away from the guide plate (7); and the driving gear (13) and the driven gear (14) are connected via a chain (15).

3. The automatic winding machine for PVC film processing according to claim 2, characterized in that: The second shaft sleeve (6) is also provided with a material discharge assembly, the material discharge assembly comprising a connecting plate (22) and a push plate (23), the second shaft sleeve (6) is also provided with a plurality of groups of connecting plates (22), the connecting plates (22) and the second support plates (9) are arranged in an alternating manner, and the push plate (23) is provided at one end of the connecting plate (22) close to the guide plate (7).

4. The automatic winding machine for PVC film processing according to claim 3, characterized in that: The blanking assembly further comprises an auxiliary plate (24), a second elastic member (25), a top plate (26), a pressure plate (27) and an inclined block (28). The auxiliary plate (24) is further arranged on both sides of the end of the push plate (23) away from the second shaft sleeve (6). The second elastic member (25) connected to the top plate (26) is arranged on the auxiliary plate (24). The pressure plate (27) is arranged on the end of the top plate (26) away from the guide plate (7). The length of the pressure plate (27) is consistent with the length of the side wall of the end of the fin (11) close to the guide plate (7). The guide plate (7) is further provided with an inclined block (28). The inclined block (28) is arranged between two corresponding groups of the second elastic members (25). The top plate (26) is provided with a notch matched with the inclined block (28).

5. The automatic winding machine for PVC film processing according to claim 4, characterized in that: An auxiliary groove is further provided at one end of the auxiliary plate (24) away from the guide plate (7), and a baffle (29) slidably connected to the auxiliary groove is further provided on the top plate (26). The baffle (29), the auxiliary plate (24) and the push plate (23) are flush with each other at the side away from the guide plate (7).

6. The automatic winding machine for PVC film processing according to claim 5, characterized in that: A buffer pad (30) is also provided at one end of the pressure plate (27) close to the second shaft sleeve.

7. The automatic winding machine for PVC film processing according to claim 6, characterized in that: The limiting member comprises an insertion rod (31) and a roller (32). Two groups of insertion rods (31) are provided on the first support plate (8). The insertion rods (31) are provided on both sides of the guide plate (7). Rollers (32) in contact with the guide plate (7) are provided at both ends of the insertion rods (31).

8. The automatic winding machine for PVC film processing according to claim 7, characterized in that: The auxiliary plate (24) is also provided with a reinforcing rib (33) connected to the push plate (23).

9. A winding method of an automatic winding machine for PVC film processing, comprising an automatic winding machine for PVC film processing as claimed in any one of claims 1 to 8, characterized in that: The steps include: Step 1: Sleeve the receiving roller on the fin (11) supported by the end of the hydraulic cylinder (2) in an extended state, wherein the first elastic member (17) is in an extended state, the end of the positioning block (19) does not protrude from the fin (11), and the end of the receiving roller is in contact with the side wall of the fin (11); Step 2: The fixed end of the hydraulic cylinder (2) drives its output end to contract under the support of the bracket (1). At this time, the second support plate (9) on the second roller sleeve pushes the hinged rod (10), and the hinged rod (10) drives the fins (11) of the first support plate (8) to move away from the second shaft sleeve (6) until a plurality of groups of fins (11) abut against the inner wall of the receiving roller sleeve. In the above process, the shifting block (21) moves toward the guide block (20), and the guide block (20) drives the slide plate (18) to squeeze the first elastic member (17), so that the slide plate (18) The positioning block (19) is driven to protrude from the fin (11), and a chamfer is further provided on one end of the positioning block (19) close to the guide plate (7). When the fin (11) is fully unfolded, the chamfer of the positioning block (19) completely protrudes from the fin (11), and the receiving roller sleeve is fixed between the side wall of the fin (11) and the positioning block (19). In the above process, the inclined block (28) pushes the top plate (26) to move toward the end away from the second shaft sleeve (6) until the push plate (23) contacts the guide plate (7); Step 3, starting the motor (12), the motor (12) drives the driving gear (13) to rotate, the driving gear (13) drives the driven gear (14) to rotate, the driven gear (14) drives the first shaft sleeve (5) to rotate, and then the guide plate (7) drives the fin (11) and the second shaft sleeve (6) to rotate, and the winding operation is performed; Step 4: When the thickness of the quantitatively wound material roll is within the stroke of the pressure plate (27), the motor (12) stops rotating and unloads the material. The output end of the hydraulic cylinder (2) extends to drive the second shaft sleeve (6) to move, and the fin (11) moves toward the second shaft sleeve (6). Initially, the push plate (23) and the baffle (29) do not contact the material roll. As the hydraulic cylinder (2) extends, the shift block (21) and the guide block (20) are misaligned, and the first elastic member (17) pushes the slide plate (18) to reset. At this time, the positioning block (19) is completely retracted into the fin (11). As the hydraulic cylinder (2) further extends, the baffle (29) and the push plate (23) contact the material roller and push the material roller to move. Step 5: During the process of the baffle plate (29) and the push plate (23) pushing the material roller to move, as the top plate (26) moves away from the inclined block (28), the second elastic member (25) adaptively contracts until the pressure plate (27) of the buffer pad (30) contacts the material, and then the material is manually unloaded.

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