Automatic winding machine for TPU film

Abstract

The utility model provides an automatic winding machine of a TPU (thermoplastic polyurethane) film, which comprises a rack, a guide roller frame used for bearing an air expansion roller is arranged on the rack, an unloading end and a winding end are arranged on the guide roller frame, and a hoisting device used for moving the air expansion roller from the unloading end of the guide roller frame to the winding end is arranged on the rack. A winding device used for winding the thin film and a cutter device used for cutting off the thin film are arranged at the position, corresponding to the winding end of the guide roller frame, of the machine frame, and a dismounting and moving device used for moving the inflatable roller from the winding end of the guide roller frame to the discharging end is arranged on the machine frame. By means of the structure, when rolling is conducted through the air expansion roller, continuous film automatic rolling operation can be achieved through cooperation of the transverse moving mechanism and the longitudinal moving mechanism of the hoisting device, the rolling device, the cutter device and the dismounting and mounting mechanism and the dismounting and mounting moving mechanism of the dismounting and mounting moving device; and therefore, the film winding efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of film winding equipment, in particular to an automatic winder for TPU films. Background Technique

[0002] TPU is a thermoplastic polyurethane elastomer. Due to its excellent mechanical properties, physical properties, and environmental protection properties, etc., it can replace PVC materials and has a wide range of application fields. The production of TPU films is based on TPU pellet materials and is made into a film through processes such as extrusion, calendering, cooling, and winding. A TPU film production line usually includes an extruder, a calender, a cooler, and a winder. Among them, the winder is used to wind the produced and formed TPU film into a cylindrical shape for easy transportation of the TPU film. However, traditional winders can only perform the winding work on the film. When installing and disassembling the air expansion roller, manual operations are required, which reduces the winding efficiency of the film. Content of the Utility Model

[0003] The utility model discloses an automatic winder for TPU films, mainly solving the problem that when installing and disassembling the air expansion roller of a traditional winder, manual operations are required, which reduces the winding efficiency of the film.

[0004] To achieve the above object, the technical solution of the utility model is realized as follows:

[0005] The utility model provides an automatic winder for TPU films, including a frame. A guide roller frame for carrying an air expansion roller is arranged on the frame. A discharging end and a winding end are arranged on the guide roller frame. A hoisting device for moving the air expansion roller from the discharging end of the guide roller frame to the winding end is arranged on the frame. A winding device for winding the film and a cutter device for cutting the film are arranged on the frame corresponding to the winding end of the guide roller frame. A disassembly and assembly moving device for moving the air expansion roller from the winding end of the guide roller frame to the discharging end is arranged on the frame;

[0006] Positioning grooves are respectively arranged at both ends of the air expansion roller;

[0007] The hoisting device includes a transverse moving mechanism slidably connected to the frame and a longitudinal moving mechanism arranged on the transverse moving mechanism. The longitudinal moving mechanism includes a longitudinal moving seat. An inwardly concave clamping groove is arranged on the longitudinal moving seat. Clamping mechanisms are symmetrically arranged at positions corresponding to the clamping groove on the longitudinal moving seat. The clamping mechanism includes a clamping member, and the clamping member is driven by a clamping cylinder;

[0008] The winding device is one of a friction winding mechanism or a clearance winding mechanism;

[0009] The disassembly and assembly mobile device includes a disassembly and assembly mechanism and a disassembly and assembly mobile mechanism slidably connected to the frame. The disassembly and assembly mechanism is installed on the disassembly and assembly mobile mechanism. The disassembly and assembly mechanism includes symmetric disassembly and assembly bases. The air inflation roller is arranged between the two disassembly and assembly bases. Positioning bases that axially move relative to the air inflation roller are arranged on both of the two disassembly and assembly bases, and the positioning bases are driven by positioning cylinders;

[0010] When the winding device is a friction winding mechanism, a first positioning shaft is rotatably connected to the positioning base, and the first positioning shaft matches the positioning groove;

[0011] When the winding device is a gap winding mechanism, a second positioning shaft is arranged on the positioning base corresponding to one end of the air inflation roller, the gap winding mechanism is installed on the positioning base corresponding to the other end of the air inflation roller, and the output end of the gap winding mechanism matches the positioning groove.

[0012] In one embodiment, a concave card slot is arranged at the position of the guide roller frame corresponding to the unloading end.

[0013] In one embodiment, the transverse movement mechanism includes a transverse movement seat slidably connected to the frame. The transverse movement seat is driven by a transverse movement cylinder, and the longitudinal movement seat is slidably connected to the transverse movement seat.

[0014] In one embodiment, the longitudinal movement seat is driven by a longitudinal movement cylinder.

[0015] In one embodiment, the cutter device includes a swing frame rotatably connected to the frame and a cutter arranged at one end of the swing frame. A swing cylinder is arranged at the other end of the swing frame.

[0016] In one embodiment, the friction winding mechanism includes a friction roller rotatably connected to the frame, a friction winding motor, and a transmission belt. The friction winding motor is in transmission connection with the friction roller through the transmission belt.

[0017] In one embodiment, the gap winding mechanism includes a gap winding motor. An output shaft is arranged at the output end of the gap winding motor, a gear is arranged on the output shaft, and the positioning groove at one end of the air inflation roller corresponding to the gear is an internal gear ring matching the gear.

[0018] In one embodiment, the disassembly and assembly mobile mechanism includes a disassembly and assembly mobile seat slidably connected to the frame. The disassembly and assembly base is installed on the disassembly and assembly mobile seat. The disassembly and assembly mobile seat is driven by a disassembly and assembly mobile cylinder to move the disassembly and assembly mobile seat along the moving direction of the air inflation roller on the guide roller frame.

[0019] In one embodiment, the disassembly and assembly moving device further includes a synchronous moving mechanism, which includes a synchronous rack, a synchronous gear, a speed reducer, a synchronous transmission belt, and a synchronous motor disposed on the disassembly and assembly moving seat. The synchronous motor is drivingly connected to the speed reducer through the synchronous transmission belt. The output end of the speed reducer is meshed with the synchronous gear, and the synchronous gear is meshed with the synchronous rack.

[0020] In one embodiment, the synchronous moving mechanism further includes a limiting block, and the synchronous rack is disposed between the limiting block and the output end of the speed reducer.

[0021] The advantages or beneficial effects in the above technical solutions at least include: when winding through the air expansion roller, with the cooperation of the lateral moving mechanism and the longitudinal moving mechanism of the hoisting device, the clamping mechanism can be driven to clamp the air expansion roller at the discharging end of the guide roller frame and hoist it to the winding end, and the air expansion roller can be positioned through the disassembly and assembly mechanism of the disassembly and assembly moving device, and then the winding device can be driven to rotate the air expansion roller to realize the automatic winding operation; when the winding is completed, the film is cut off by the cutting device, and then the disassembly and assembly moving mechanism of the disassembly and assembly moving device can drive the disassembly and assembly mechanism to drive the air expansion roller to move along the guide roller frame towards the discharging end. After the air expansion roller is removed by the disassembly and assembly mechanism, it is convenient to unload the film wound into a roll and separate it from the air expansion roller. Among them, when moving the air expansion roller wound with the film to the discharging end, the original air expansion roller at the discharging end can be clamped by the hoisting device at the discharging end of the guide roller frame and hoisted to the winding end for winding, so as to realize the continuous automatic winding operation of the film, thereby improving the winding efficiency of the film. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings illustrate exemplary embodiments of the present invention and are used in conjunction with the description to explain the principles of the present invention. These drawings are included to provide a further understanding of the present invention and are included in this specification and form a part of this specification.

[0023] Figure 1 Shows a schematic diagram of an automatic winding machine for TPU film according to an exemplary embodiment of the present invention;

[0024] Figure 2 Shows a schematic diagram of a guide roller frame according to an exemplary embodiment of the present invention;

[0025] Figure 3 Shows a schematic diagram of a hoisting device according to an exemplary embodiment of the present invention;

[0026] Figure 4 Shows a schematic diagram of a lateral moving mechanism according to an exemplary embodiment of the present invention;

[0027] Figure 5Shows a schematic diagram of a longitudinal moving mechanism and a clamping mechanism according to an exemplary embodiment of the present utility model;

[0028] Figure 6 Shows a schematic diagram of a winding device and a disassembly and assembly moving device according to an exemplary embodiment of the present utility model;

[0029] Figure 7 Shows a schematic diagram of a friction winding mechanism according to an exemplary embodiment of the present utility model;

[0030] Figure 8 Shows a schematic diagram of a disassembly and assembly mechanism corresponding to the friction winding mechanism according to an exemplary embodiment of the present utility model;

[0031] Figure 9 Shows a schematic diagram of a clearance winding mechanism and a corresponding disassembly and assembly mechanism according to an exemplary embodiment of the present utility model;

[0032] Figure 10 Shows a schematic diagram of a cutter device according to an exemplary embodiment of the present utility model;

[0033] Figure 11 Shows a schematic diagram of a disassembly and assembly moving mechanism according to an exemplary embodiment of the present utility model.

[0034] Explanation of reference numerals:

[0035] 1. Frame;

[0036] 2. Air shaft;

[0037] 21. Positioning groove;

[0038] 3. Guide roller frame;

[0039] 31. Card slot;

[0040] 4. Lifting device;

[0041] 41. Transverse moving mechanism; 411. Transverse moving seat; 412. Transverse moving cylinder; 42. Longitudinal moving mechanism; 421. Longitudinal moving seat; 422. Clamping groove; 423. Longitudinal moving cylinder; 43. Clamping mechanism; 431. Clamping member; 432. Clamping cylinder;

[0042] 5. Winding device;

[0043] 51. Friction winding mechanism; 511. Friction roller; 512. Friction winding motor; 513. Transmission belt; 52. Clearance winding mechanism; 521. Clearance winding motor; 522. Output shaft; 523. Gear;

[0044] 6. Cutter device;

[0045] 61. Swing frame; 62. Cutting tool; 63. Swing cylinder;

[0046] 7. Disassembly and assembly moving device;

[0047] 71. Disassembly and assembly mechanism; 711. Disassembly and assembly base; 712. Positioning base; 713. Positioning cylinder;

[0048] 714. First positioning shaft; 715. Second positioning shaft; 72. Disassembly and assembly moving mechanism; 721. Disassembly and assembly moving seat; 722. Disassembly and assembly moving cylinder; 73. Synchronous moving mechanism; 731. Synchronous rack; 732. Synchronous gear; 733. Reducer; 734. Synchronous transmission belt; 735. Synchronous motor; 736. Limit block. Detailed implementation mode

[0049] Embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although some embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. On the contrary, these embodiments are provided to more thoroughly and completely understand the present invention. It should be understood that the drawings and embodiments of the present invention are only for exemplary purposes and are not used to limit the protection scope of the present invention.

[0050] It should be noted that, without conflict, the implementation manners and features in the implementation manners of the present invention can be combined with each other. The present invention will be described in detail below with reference to the drawings and in combination with the implementation manners.

[0051] The term "including" and its variants used herein are open-ended, that is, "including but not limited to". The term "based on" is "at least partially based on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". The relevant definitions of other terms will be given in the following description. It should be noted that the concepts such as "first" and "second" mentioned in the present invention are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0052] It should be noted that the modifications of "one" and "multiple" mentioned in the present invention are illustrative rather than restrictive. Those skilled in the art should understand that, unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0053] The names of the messages or information exchanged between multiple devices in the implementation manners of the present invention are only for illustrative purposes and are not used to limit the scope of these messages or information.

[0054] See Figure 1 、 Figure 3 、 Figure 5 、 Figure 6 、 Figure 8 、 Figure 9 and Figure 10 , an embodiment of the present utility model provides an automatic winding machine for TPU film, which includes a frame 1. A guide roller frame 3 for carrying an air expansion roller 2 is arranged on the frame 1. A discharging end and a winding end are arranged on the guide roller frame 3. A hoisting device 4 for moving the air expansion roller 2 from the discharging end of the guide roller frame 3 to the winding end is arranged on the frame 1. A winding device 5 for winding the film and a cutting knife device 6 for cutting the film are arranged on the frame 1 corresponding to the winding end of the guide roller frame 3. A disassembly and assembly moving device 7 for moving the air expansion roller 2 from the winding end of the guide roller frame 3 to the discharging end is arranged on the frame 1;

[0055] Positioning grooves 21 are respectively arranged at both ends of the air expansion roller 2;

[0056] The hoisting device 4 includes a lateral moving mechanism 41 slidably connected to the frame 1 and a longitudinal moving mechanism 42 arranged on the lateral moving mechanism 41. The longitudinal moving mechanism 42 includes a longitudinal moving seat 421. An inward concave clamping groove 422 is arranged on the longitudinal moving seat 421. Clamping mechanisms 43 are symmetrically arranged at positions corresponding to the clamping groove 422 on the longitudinal moving seat 421. The clamping mechanism 43 includes a clamping member 431, and the clamping member 431 is driven by a clamping cylinder 432;

[0057] The winding device 5 is one of a friction winding mechanism 51 or a clearance winding mechanism 52;

[0058] The disassembly and assembly moving device 7 includes a disassembly and assembly mechanism 71 and a disassembly and assembly moving mechanism 72 slidably connected to the frame 1. The disassembly and assembly mechanism 71 is installed on the disassembly and assembly moving mechanism 72. The disassembly and assembly mechanism 71 includes symmetric disassembly and assembly bases 711. The air expansion roller 2 is arranged between the two disassembly and assembly bases 711. Positioning bases 712 that axially move relative to the air expansion roller 2 are arranged on both disassembly and assembly bases 711, and the positioning bases 712 are driven by positioning cylinders 713;

[0059] When the winding device 5 is a friction winding mechanism 51, a first positioning shaft 714 is rotatably connected to the positioning base 712, and the first positioning shaft 714 matches the positioning groove 21; wherein, the first positioning shaft 714 is rotatably connected to the positioning base 712 through a bearing, and when the expansion roller 2 is rotatably connected to the first positioning shaft 714, the positioning base 712 is driven respectively by two positioning cylinders 713, so that the first positioning shaft 714 on the positioning base 712 can be respectively embedded in the positioning groove 21, so that the expansion roller 2 can be rotatably connected to the first positioning shaft 714, so as to position the expansion roller 2 and facilitate the winding of the friction winding mechanism 51; when the expansion roller 2 with the film rolled up needs to be removed, the positioning base 712 can be driven in the reverse direction by the positioning cylinder 713, so that the first positioning shaft 714 is separated from the positioning groove 21, and the film on the expansion roller 2 can be removed.

[0060] When the winding device 5 is a gap winding mechanism 52, a second positioning shaft 715 is provided on the positioning base 712 corresponding to one end of the expansion roller 2, and the gap winding mechanism 52 is installed on the positioning base 712 corresponding to the other end of the expansion roller 2, and the output end of the gap winding mechanism 52 matches the positioning groove 21. Among them, the second positioning shaft 715 is rotatably connected to the positioning base 712 through a bearing. When the expansion roller 2 is rotatably connected to the first positioning shaft 714, the positioning base 712 is driven respectively by two positioning cylinders 713, so that the second positioning shaft 715 on the positioning base 712 at one end of the expansion roller 2 can be respectively embedded in the positioning groove 21, so that one end of the expansion roller 2 can be rotatably connected to the second positioning shaft 715, and the output end of the gap winding mechanism 52 at the other end is embedded in the positioning groove 21, so as to facilitate the winding driven by the gap winding mechanism 52; when it is necessary to remove the expansion roller 2 with the film wound, the positioning base 712 can be driven in the reverse direction by the positioning cylinder 713, so that the second positioning shaft 715 at one end of the expansion roller 2 is separated from the positioning groove 21, and the output end of the gap winding mechanism 52 at the other end is separated from the positioning groove 21, so that the film on the expansion roller 2 can be removed.

[0061] With the above structure, when winding by the air expansion roller 2, under the cooperation of the lateral movement mechanism 41 and the longitudinal movement mechanism 42 of the hoisting device 4, the clamping mechanism 43 can be driven to clamp the air expansion roller 2 at the unloading end of the guide roller frame 3 and hoist it to the winding end, and the air expansion roller 2 can be positioned by the disassembly and assembly mechanism 71 of the disassembly and assembly moving device 7. Then, the air expansion roller 2 can be driven to rotate by the winding device 5 to realize the automatic winding operation. When the winding is completed, the film is cut off by the cutting device 6. Then, the disassembly and assembly moving mechanism 72 of the disassembly and assembly moving device 7 can drive the disassembly and assembly mechanism 71 to drive the air expansion roller 2 to move along the guide roller frame 3 towards the unloading end. After the air expansion roller 2 is removed by the disassembly and assembly mechanism 71, it is convenient to unload the film wound into a cylinder and separate it from the air expansion roller 2. Among them, when moving the air expansion roller 2 wound with the film to the unloading end, the original air expansion roller at the unloading end can be clamped by the hoisting device 4 at the unloading end of the guide roller frame 3 and hoisted to the winding end for winding, so as to realize the continuous automatic winding operation of the film, thereby improving the winding efficiency of the film.

[0062] In one embodiment, referring to Figure 2 , a concave clamping groove 31 is provided at the position of the guide roller frame 3 corresponding to the unloading end. In actual use, through the setting of the clamping groove 31 on the guide roller frame 3, the air expansion roller 2 can be limited to prevent the air expansion roller 2 from moving when unloading the film at the unloading end.

[0063] In one embodiment, referring to Figure 3 , Figure 4 and Figure 5 , the lateral movement mechanism 41 includes a lateral movement seat 411 slidably connected to the frame 1. The lateral movement seat 411 is driven by a lateral movement cylinder 412, and the longitudinal movement seat 421 is slidably connected to the lateral movement seat 411. In actual use, through the setting of the lateral movement seat 411, when the lateral movement cylinder 412 drives the lateral movement seat 411 to move, the longitudinal movement seat 421 can be driven to move together.

[0064] The longitudinal movement seat 421 is driven by a longitudinal movement cylinder 423. In actual use, through the setting of the longitudinal movement cylinder 423, the longitudinal movement seat 421 can be driven to move longitudinally on the lateral movement seat 411, so as to drive the air expansion roller 2 at the clamping groove 422 to move up and down.

[0065] In one embodiment, referring to Figure 11, the cutting device 6 includes a swing frame 61 rotatably connected to the frame 1 and a cutter 62 provided at one end of the swing frame 61, and a swing cylinder 63 is provided at the other end of the swing frame 61. In actual use, through the cooperation of the swing frame 61, the cutter 62 and the swing cylinder 63, the swing cylinder 63 can drive the swing frame 61 to swing. When the film needs to be cut, the swing cylinder 63 can drive the cutter 62 on the swing frame 61 to swing towards the film to cut the film. When the film is being wound up, the swing cylinder 63 can drive the swing frame 61 to the original position so that the cutter 62 can be away from the film to prevent the cutter 62 from cutting the film.

[0066] In one embodiment, refer to Figure 8 , the friction winding mechanism 51 includes a friction roller 511 rotatably connected to the frame 1, a friction winding motor 512 and a transmission belt 513. The friction winding motor 512 is drivingly connected to the friction roller 511 through the transmission belt 513. In actual use, through the cooperation of the friction roller 511, the friction winding motor 512 and the transmission belt 513, the power of the friction winding motor 512 can be transmitted to the friction roller 511 through the transmission belt 513 to drive the rotation of the friction roller 511, and the rotation of the air expansion roller 2 can be driven by the friction of the friction roller 511, so as to realize the action of winding up the film.

[0067] In one embodiment, refer to Figure 10 , the clearance winding mechanism 52 includes a clearance winding motor 521. An output shaft 522 is provided at the output end of the clearance winding motor 521, and a gear 523 is provided on the output shaft 522. The positioning groove 21 at one end of the air expansion roller 2 corresponding to the gear 523 is an internal gear ring matching the gear 523. In actual use, through the cooperation of the clearance winding motor 521, the output shaft 522, the gear 523 and the internal gear ring of the positioning groove 21, the power of the clearance winding motor 521 drives the gear 523 to rotate through the output shaft 522, and through the meshing action of the gear 523 and the internal gear ring of the positioning groove 21, the air expansion roller 2 can be driven to rotate, so as to realize the action of winding up the film.

[0068] In one embodiment, refer to Figure 6 and Figure 7 , the disassembly and assembly moving mechanism 72 includes a disassembly and assembly moving seat 721 slidably connected to the frame 1. The disassembly and assembly base 711 is installed on the disassembly and assembly moving seat 721. The disassembly and assembly moving seat 721 is driven by a disassembly and assembly moving cylinder 722 to move the disassembly and assembly moving seat 721 along the moving direction of the air expansion roller 2 on the guide roller frame 3. In actual use, through the cooperation of the disassembly and assembly moving seat 721 and the disassembly and assembly moving cylinder 722, the disassembly and assembly moving cylinder 722 can drive the disassembly and assembly moving seat 721 to move on the frame 1, so as to drive the air expansion roller 2 wound with the film to move to the unloading end on the guide roller frame 3.

[0069] The disassembly and assembly mobile device 7 further includes a synchronous movement mechanism 73. The synchronous movement mechanism 73 includes a synchronous rack 731, a synchronous gear 732, a speed reducer 733, a synchronous transmission belt 734, and a synchronous motor 735 disposed on the disassembly and assembly mobile seat 721. The synchronous motor 735 is drivingly connected to the speed reducer 733 through the synchronous transmission belt 734. The output end of the speed reducer 733 is engaged with the synchronous gear 732, and the synchronous gear 732 is engaged with the synchronous rack 731. In practical applications, with the cooperation of the synchronous rack 731, the synchronous gear 732, the speed reducer 733, the synchronous transmission belt 734, and the synchronous motor 735 of the synchronous movement mechanism 73, it can further support and cooperate with the movement of the disassembly and assembly mobile seat 721, and improve the stability of the disassembly and assembly mobile seat 721 in supporting the air inflation roller 2.

[0070] The synchronous movement mechanism 73 further includes a limit block 736. The synchronous rack 731 is disposed between the limit block 736 and the output end of the speed reducer 733. In practical applications, with the setting of the limit block 736, it can support and limit the synchronous rack 731 to prevent the synchronous rack 731 from shaking.

[0071] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0072] Those skilled in the art should understand that the above embodiments are only for clearly explaining the present invention, rather than limiting the scope of the present invention. For those skilled in the art, other changes or modifications can be made on the basis of the above invention, and these changes or modifications are still within the scope of the present invention.

Claims

1. An automatic winding machine for TPU film, characterized in that, It includes a frame, on which a guide roller frame for carrying an air expandable roller is provided. A discharge end and a winding end are provided on the guide roller frame. A hoisting device for moving the air expandable roller from the discharge end of the guide roller frame to the winding end is provided on the frame. A winding device for winding the film and a cutting device for cutting the film are provided on the frame corresponding to the winding end of the guide roller frame. A disassembly and assembly moving device for moving the air expandable roller from the winding end of the guide roller frame to the discharge end is provided on the frame; Positioning grooves are respectively provided at both ends of the air expandable roller; The hoisting device includes a lateral moving mechanism slidably connected to the frame and a longitudinal moving mechanism provided on the lateral moving mechanism. The longitudinal moving mechanism includes a longitudinal moving seat, and a concave clamping groove is provided on the longitudinal moving seat. Clamping mechanisms are symmetrically provided at positions corresponding to the clamping groove on the longitudinal moving seat. The clamping mechanism includes a clamping member, and the clamping member is driven by a clamping cylinder; The winding device is one of a friction winding mechanism or an intermittent winding mechanism; The disassembly and assembly moving device includes a disassembly and assembly mechanism and a disassembly and assembly moving mechanism slidably connected to the frame. The disassembly and assembly mechanism is installed on the disassembly and assembly moving mechanism. The disassembly and assembly mechanism includes symmetrical disassembly and assembly bases. The air expandable roller is arranged between the two disassembly and assembly bases. Positioning bases that axially move relative to the air expandable roller are provided on both disassembly and assembly bases, and the positioning bases are driven by positioning cylinders; When the winding device is a friction winding mechanism, a first positioning shaft is rotatably connected to the positioning base, and the first positioning shaft matches the positioning groove; When the winding device is an intermittent winding mechanism, a second positioning shaft is provided on the positioning base corresponding to one end of the air expandable roller, the intermittent winding mechanism is installed on the positioning base corresponding to the other end of the air expandable roller, and the output end of the intermittent winding mechanism matches the positioning groove.

2. The automatic winding machine for TPU film according to claim 1, characterized in that, The guide roller frame is provided with a concave card slot at a position corresponding to the discharge end; 3. The automatic winding machine for TPU film according to claim 1, characterized in that, The lateral moving mechanism includes a lateral moving seat slidably connected to the frame. The lateral moving seat is driven by a lateral moving cylinder, and the longitudinal moving seat is slidably connected to the lateral moving seat.

4. The automatic winding machine for TPU film according to claim 1 or 3, characterized in that, The longitudinal moving seat is driven by a longitudinal moving cylinder.

5. The automatic winding machine for TPU film as described in claim 1, wherein The cutting device includes a swing frame rotatably connected to the frame and a cutting knife provided at one end of the swing frame. A swing cylinder is provided at the other end of the swing frame.

6. The automatic winding machine for TPU film according to claim 1, characterized in that, The friction winding mechanism includes a friction roller rotatably connected to the frame, a friction winding motor, and a transmission belt. The friction winding motor is in transmission connection with the friction roller through the transmission belt.

7. The automatic winding machine for TPU film according to claim 1, characterized in that, The intermittent winding mechanism includes an intermittent winding motor. An output shaft is provided at the output end of the intermittent winding motor, a gear is provided on the output shaft, and the positioning groove at one end of the air expandable roller corresponding to the gear is an internal gear ring that matches the gear.

8. The automatic winding machine for TPU film according to claim 1, characterized in that, The disassembly and assembly moving mechanism includes a disassembly and assembly moving seat slidably connected to the frame. The disassembly and assembly base is installed on the disassembly and assembly moving seat. The disassembly and assembly moving seat is driven by a disassembly and assembly moving cylinder to move the disassembly and assembly moving seat along the moving direction of the air expandable roller on the guide roller frame.

9. The automatic winding machine for TPU film according to claim 8, characterized in that, The disassembly and assembly mobile device further includes a synchronous movement mechanism, and the synchronous movement mechanism includes a synchronous rack, a synchronous gear, a speed reducer, a synchronous transmission belt, and a synchronous motor arranged on the disassembly and assembly mobile seat. The synchronous motor is in transmission connection with the speed reducer through the synchronous transmission belt. The output end of the speed reducer is meshed with the synchronous gear, and the synchronous gear is meshed with the synchronous rack.

10. The automatic winding machine for TPU film according to claim 9, characterized in that, The synchronous movement mechanism further includes a limit block, and the synchronous rack is arranged between the limit block and the output end of the speed reducer.

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