Winding device for high-value thermoplastic polyurethane film processing

Abstract

The invention relates to the technical field of polyurethane film winding, in particular to a winding device for processing a high-value thermoplastic polyurethane film. Comprising a machine frame, a winding mechanism composed of a winding frame and an air expansion shaft is installed on the machine frame, a rotary driving device is installed at a winding station on the machine frame, the air expansion shaft enables the rotary driving device to be in transmission connection with the air expansion shaft through a connecting device, and an abutting mechanism is installed on the side, close to the winding station, of the machine frame. The abutting mechanism comprises a mounting frame, a first abutting roller, a second abutting roller and a cleaning roller, the first abutting roller and the second abutting roller are elastically connected to the mounting frame through a self-adaptive adjusting mechanism, and the second abutting roller can deflect around an air expansion shaft on the winding station through a synchronous deflection device. According to the device, the rollers can be automatically replaced without shutdown, air entrainment is prevented and reduced, the extrusion force on a polyurethane film can be automatically and accurately adjusted, and the situation that the film is wrinkled, excessively stretched and the like in the winding process is avoided.

Description

Technical Field

[0001] This invention relates to the field of polyurethane film winding technology, and more specifically to a winding apparatus for processing high-performance thermoplastic polyurethane films. Background Technology

[0002] In the winding process of high-performance polyurethane films, preventing and reducing wrinkles on the film surface caused by air entrainment is an important issue. To improve the flatness and alignment of the polyurethane film, it is necessary to guide and pressurize the film during winding to ensure precise adhesion to the outermost upper surface of the roll, thereby improving winding accuracy.

[0003] Chinese Patent Publication No. CN113697557A discloses a roller changing device and method for a fabric winding and testing equipment, comprising a cylinder clamping unit, a rotary unit, and a lifting unit. The cylinder clamping unit includes a cylindrical telescopic part, a locking unit between the telescopic part and the rotary unit, rollers synchronously connected to the telescopic part, and a vertical roller conveyor fixed to the frame. This invention utilizes two sets of cylinder clamping units to clamp a fully loaded cylinder and an empty cylinder respectively. The rotary unit enables positional interchange between the two, the locking unit maintains fabric tension during the interchange, and the lifting unit accommodates the vertical displacement generated when the cylinder winds the material. Furthermore, the lifting unit drives both cylinders downwards after the interchange, and the empty cylinder rotates under the action of the rollers and the vertical roller conveyor, thereby winding the fabric and ensuring that the fabric does not become loose during the downward movement of the cylinders. The aforementioned patent requires manual cutting during roller changing operations and manual winding of the end onto the copper pillar. Manual initial winding of the film is not only inefficient but also makes it difficult to guarantee the accuracy and consistency of the winding. This can easily lead to deflection between the roll and the polyurethane film during the winding process, or problems such as adhesion and deformation of the polyurethane film during the initial winding.

[0004] Traditional clamping mechanisms, when guiding and compressing polyurethane film, cannot automatically and accurately adjust the extrusion pressure according to the increase in the outer diameter or the change in film thickness of the polyurethane film roll. This easily leads to problems such as wrinkles and overstretching of the film during winding, seriously affecting product quality. Simultaneously, the high viscosity of polyurethane film makes it prone to attracting dust, and the clamping mechanism itself is also easily contaminated with dust and other impurities during operation, causing contamination when clamping the film. Film containing impurities will cause winding deformation after winding, further reducing product quality. Furthermore, the film may stick to the clamping rollers during winding, causing pulling or shifting during compaction, also affecting winding quality. In addition, existing systems are difficult to adapt to the winding requirements of films of different widths. Facing diverse production tasks, complex adjustments or replacements of equipment are often required, which is not only time-consuming and labor-intensive but also increases production costs. On the other hand, roller changing usually requires machine shutdown, causing production interruptions and seriously affecting overall production efficiency. Summary of the Invention

[0005] Therefore, it is necessary to provide a winding device for processing thermoplastic polyurethane films with high coefficient values, addressing the existing technical problems.

[0006] To solve the problems of the prior art, the technical solution adopted by the present invention is as follows:

[0007] This invention provides a winding device for processing high-performance thermoplastic polyurethane films, including a frame, on which a winding mechanism is mounted. The winding mechanism consists of a repositionable winding frame and two rotatable air shafts. The winding frame has a winding station and a material changing station at both ends for mounting the air shafts. A rotary drive device is mounted at the winding station on the frame. The air shafts are connected to the rotary drive device via a connecting device. A clamping mechanism is mounted on the side of the frame near the winding station. The clamping mechanism includes a mounting frame, a first clamping roller, and a second clamping roller. Both the first and second clamping rollers are elastically connected to the mounting frame via an adaptive adjustment mechanism. The second clamping roller can deflect around the air shafts at the winding station via a synchronous deflection device. A cleaning roller that rotates synchronously with both the first and second clamping rollers is located on the side away from the air shaft. A detachable roll is mounted on the air shaft. An ion fan is also mounted on the mounting frame next to the first clamping roller.

[0008] Preferably, a first linear drive is fixedly installed on the frame, a first inclined slide rail is provided on the side wall of the frame, the mounting frame is slidably mounted on the frame via the first inclined slide rail, the mounting frame is provided with a clearance groove to avoid the rotary drive device and the connecting device, a deflection frame and a fixed frame are mounted on the mounting frame, the fixed frame is vertically positioned directly above the air shaft, the deflection frame is located beside the fixed frame, the deflection frame can deflect around the axis of the air shaft, a first pressing roller is mounted on the fixed frame, and a second pressing roller is mounted on the deflection frame.

[0009] Preferably, the deflection frame is equipped with a rotatable drive gear, and the side wall of the mounting frame is provided with a ring tooth containing a notch. The notch of the ring tooth is used to avoid the end of the air shaft. The drive gear meshes with the ring tooth, and both ends of the ring tooth are provided with positioning contact plates that can abut against the edge of the deflection frame.

[0010] Preferably, the connecting device includes a push plate that can be displaced along the axis of the air shaft and a telescopic connector mounted on the push plate. One end of the telescopic connector can be engaged with the end of the air shaft, and the other end of the telescopic connector is connected to the rotary drive device.

[0011] Preferably, both the deflection frame and the fixed frame are equipped with an adaptive adjustment mechanism. The adaptive adjustment mechanism includes a mounting plate, an elastic abutment device, and a disengagement device. The mounting plate is located on the side of the deflection frame or the fixed frame near the air shaft. The sliding direction of the mounting plate is consistent with the diameter of the air shaft. The first abutment roller and the second abutment roller are respectively mounted on the two mounting plates.

[0012] Preferably, the elastic abutment device includes a threaded telescopic rod, a sliding rod, a fixing ring, a spring, and an adjusting motor. The adjusting motor is fixedly mounted on a fixed frame or a deflection frame, and the output end of the adjusting motor is fixedly connected to the top end of the threaded telescopic rod. The middle part of the threaded telescopic rod is mounted on the fixed frame or the deflection frame. The sliding rod is fixedly mounted on a mounting plate. The sliding rod and the threaded telescopic rod are coaxially arranged and slidably engaged. The fixing ring is fixedly mounted on the outer side wall of the threaded telescopic rod. The spring is sleeved on the outside of the fixed rod, and both ends of the spring are connected to the mounting plate and the fixing ring, respectively.

[0013] Preferably, the disengagement device includes a second linear actuator, a lifting plate, and a lifting contact frame. The second linear actuator is fixedly mounted on a fixed frame or a deflection frame. The lifting plate is fixedly mounted on the output end of the second linear actuator. The lifting contact frame is fixedly mounted on a mounting plate. The top of the lifting plate can fit against the inner top of the lifting contact frame.

[0014] Preferably, the rotary drive includes a magnetic powder clutch that is driven by the telescopic connector, and the magnetic powder clutch is mounted on the outer side wall of the frame.

[0015] Preferably, both ends of the winding station and the material changing station on the winding frame are equipped with clamping claws capable of clamping the end of the air shaft, and the inner sidewalls of the clamping claws are equipped with abutting rollers.

[0016] Preferably, the end of the first or second pressing roller is connected to the cleaning roller via a synchronous belt, and a dust suction head is provided on the side of the cleaning roller.

[0017] The advantages of this invention compared to the prior art are: 1. Utilizing the winding and material changing stations of the winding frame, combined with the first linear drive, the first inclined slide rail, and the clearance groove on the mounting frame, during roll changing operations, the mounting frame drives the clamping mechanism to automatically avoid the winding frame. After the winding frame rotates half a revolution to complete the position change of the air shaft, the mounting frame automatically resets, pushing the first and second clamping rollers back to the winding station. The entire process requires no machine downtime, effectively solving the problem of production interruption caused by roll changing, and significantly improving overall production efficiency. During roll changing operations, this device eliminates the need for manual cutting and winding of the ends onto the roll. Through the automated feeding robot and the release device in the adaptive adjustment mechanism, the end of the polyurethane film can be automatically passed through the gap and positioned. The second clamping roller then stably presses the film onto the roll to achieve automatic winding. This not only improves winding efficiency but also ensures winding accuracy and consistency, avoiding deflection between the roll and the polyurethane film during winding, as well as problems such as adhesion and deformation of the polyurethane film during initial winding.

[0018] 2. This device guides and pressurizes the polyurethane film using first and second pressing rollers, ensuring precise adhesion to the outermost film surface of the roll. This effectively prevents and reduces air entrainment, lowering the probability of wrinkles on the film surface. The elastic contact device in the adaptive adjustment mechanism installed on the deflection frame and fixing frame can automatically and precisely adjust the extrusion pressure of the first and second pressing rollers on the polyurethane film by adjusting the rotation of the threaded telescopic rod driven by the motor according to the increase in the outer diameter of the polyurethane film roll or the change in film thickness. This ensures that the film does not wrinkle or overstretch during winding, thus preventing problems that affect product quality. The winding mechanism of this device uses a replaceable winding frame and two rotatable air shafts. The winding frame is equipped with a winding station and a material changing station. This design allows the next roll to be prepared while the current roll is being wound without stopping the machine, and it can adapt to the winding requirements of films of different widths. No complex adjustments or replacements are required, reducing production costs and improving production efficiency. Attached Figure Description

[0019] Figure 1 A schematic diagram of the three-dimensional structure of a winding device for processing high-performance thermoplastic polyurethane films. Figure 1 ; Figure 2 A partial three-dimensional structural diagram of a winding device for processing high-performance thermoplastic polyurethane films. Figure 1 ; Figure 3 This is a front view of a winding apparatus for processing high-performance thermoplastic polyurethane films; Figure 4 This is a three-dimensional structural diagram of the clamping mechanism in a winding device for processing high-performance thermoplastic polyurethane films. Figure 5This is a three-dimensional structural diagram of an adaptive adjustment mechanism in a winding device for processing high-performance thermoplastic polyurethane films. Figure 6 This is a front view of an adaptive adjustment mechanism in a winding device for processing high-performance thermoplastic polyurethane films; Figure 7 A schematic diagram of the three-dimensional structure of a winding device for processing high-performance thermoplastic polyurethane films. Figure 2 ; Figure 8 A partial three-dimensional structural diagram of a winding device for processing high-performance thermoplastic polyurethane films. Figure 2 ; Figure 9 This is a three-dimensional structural diagram of a winding frame, connecting device and rotary drive device in a winding device for processing high-performance thermoplastic polyurethane films. Figure 10 This is a three-dimensional structural diagram of the connecting device in a winding device for processing high-performance thermoplastic polyurethane films. Figure 11 This is a three-dimensional structural diagram of the air shaft and the roll in a winding device for processing high-performance thermoplastic polyurethane films.

[0020] The numbers on the map are: 1. Frame; 2. Winding frame; 3. Air shaft; 4. Rotary drive device; 5. Connecting device; 6. Mounting frame; 7. First clamping roller; 8. Second clamping roller; 9. Cleaning roller; 10. Drum; 11. Ionizing fan; 12. First linear actuator; 13. First inclined slide rail; 14. Clearance groove; 15. Deflection frame; 16. Fixing frame; 17. Drive gear; 18. Ring gear; 19. Positioning contact plate; 20. Push plate; 21. Telescopic connector; 22. Mounting plate; 23. Threaded telescopic rod; 24. Sliding rod; 25. Fixing ring; 26. Spring; 27. Adjusting motor; 28. Second linear actuator; 29. ​​Lifting plate; 30. Lifting contact frame; 31. Magnetic powder clutch; 32. Clamping claw; 33. Contact roller; 34. Synchronous belt; 35. Dust extraction head. Detailed Implementation

[0021] To further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0022] like Figures 1-11The diagram shows a high-performance thermoplastic polyurethane film winding device, comprising a frame 1, on which a winding mechanism is mounted. The winding mechanism consists of a replaceable winding frame 2 and two rotatable air shafts 3. The winding frame 2 has a winding station and a material changing station at both ends for mounting the air shafts 3. A rotary drive device 4 is mounted at the winding station on the frame 1. The rotary drive device 4 is connected to the air shafts 3 via a connecting device 5. A clamping mechanism is mounted on the side of the frame 1 near the winding station. The clamping mechanism includes a mounting frame 6, a first clamping roller 7, and a second clamping roller 8. The first clamping roller 7 and the second clamping roller 8 are elastically connected to the mounting frame 6 through an adaptive adjustment mechanism. The second clamping roller 8 can deflect around the air shaft 3 on the winding station through a synchronous deflection device. The first clamping roller 7 and the second clamping roller 8 are provided with a cleaning roller 9 that rotates synchronously with the air shaft 3 on the side away from the air shaft 3. A detachable drum 10 is installed on the air shaft 3. An ion fan 11 located next to the first clamping roller 7 is also provided on the mounting frame 6.

[0023] In the winding mechanism of this invention, the winding frame 2 has a winding station and a material changing station. This design allows the next roll 10 to be prepared while one roll 10 is being wound, improving production efficiency and solving the problems of existing packaging film winding systems being unable to adapt to films of different widths and requiring machine stoppages for roll changes. This achieves efficient and continuous film winding and conveying. The first pressing roller 7 and the second pressing roller 8 can wind the polyurethane film onto the roll 10 at a predetermined winding pressure. During the winding process, the pressing pressure can be continuously adjusted, automatically adjusting as the outer diameter of the polyurethane film roll increases or the thickness of the polyurethane film changes, ensuring precise and flat winding of the polyurethane film and avoiding wrinkles or excessive stretching. To prevent the pressing mechanism from contaminating the polyurethane film during the guiding and pressing process due to dust and other impurities, cleaning rollers 9 are provided on both the first pressing roller 7 and the second pressing roller 8. These cleaning rollers 9 can rotate synchronously, achieving a self-cleaning function during the winding process. The air shaft 3 carries the roll 10. The rotary drive device 4 drives the air shaft 3 to rotate through the connecting device 5 to achieve film winding. The clamping roller ensures that the film is tightly wound, avoiding wrinkles and looseness. The cleaning roller 9 improves the cleanliness of the film. The rubber gasket prevents the roll 10 from sliding and buffers and protects the film, thereby ensuring winding quality. The blowing direction of the ion blower 11 is horizontal and points towards the film inlet. The ion blower 11 cleans the surface of the polyurethane film at the inlet, avoiding surface adhesion of impurities and improving winding quality.

[0024] It is worth mentioning that both the outer walls of the first clamping roller 7 and the second clamping roller 8 are provided with an anti-stick coating. The anti-stick coating can prevent the thermoplastic polyurethane film from sticking to the clamping rollers during the winding process, further ensuring the winding quality and avoiding pulling or displacement during the compaction process.

[0025] A first linear drive 12 is fixedly installed on the frame 1. A first inclined slide rail 13 is provided on the side wall of the frame 1. The mounting frame 6 is slidably mounted on the frame 1 via the first inclined slide rail 13. The mounting frame 6 is provided with a clearance groove 14 for the avoidance of the rotary drive device 4 and the connecting device 5. A deflection frame 15 and a fixed frame 16 are mounted on the mounting frame 6. The fixed frame 16 is vertically positioned directly above the air shaft 3. The deflection frame 15 is located beside the fixed frame 16. The deflection frame 15 can deflect around the axis of the air shaft 3. A first pressing roller 7 is provided on the fixed frame 16, and a second pressing roller 8 is provided on the deflection frame 15.

[0026] When the equipment performs a roller changing operation, the first linear drive 12 first drives the mounting frame 6, which is connected to it, to move along the inclined direction of the first inclined slide rail 13. This causes the mounting frame 6 to move away from the winding station, allowing the clamping mechanism mounted on the mounting frame 6 to avoid the winding frame 2. The winding frame 2 rotates half a turn, swapping the positions of the air shafts 3 located at the two stations. Then, the first linear drive 12 drives the mounting frame 6 to reset, pushing the first clamping roller 7 and the second clamping roller 8 back to the winding station. During winding, the first clamping roller 7 always contacts the polyurethane film and rotates synchronously with the movement of the polyurethane film. The second clamping roller 8 rotates synchronously with the rotation of the air shaft 3. During this process, the second clamping roller 8 does not rotate, keeping the end of the polyurethane film in contact with it always in contact with the outer surface of the roll 10, preventing the polyurethane film from shifting or misaligning with the surface of the roll 10 during initial winding. When the deflector 15 rotates to its maximum angle, it stops rotating, and the second clamping roller 8 rotates synchronously with the first clamping roller 7 to achieve the subsequent clamping operation. The end of the polyurethane film that rotates out from the clamping position of the second clamping roller 8 is completely covered by the outer polyurethane film, thus achieving a precise and automatic winding function. During this process, the first clamping roller 7 always maintains the amount and accuracy of the polyurethane film feed, ensuring the accuracy of automatic winding. This avoids the need for manual initial winding, ensuring that the roll 10 and the polyurethane film do not deflect during the winding process, and preventing the polyurethane film from sticking or deforming during initial winding.

[0027] The deflection frame 15 is equipped with a rotatable drive gear 17. The side wall of the mounting frame 6 is provided with a ring tooth 18 containing a notch. The notch of the ring tooth 18 is used to avoid the end of the air shaft 3. The drive gear 17 meshes with the ring tooth 18. Both ends of the ring tooth 18 are provided with positioning contact plates 19 that can abut against the edge of the deflection frame 15.

[0028] During the initial winding process, the drive gear 17 rotates, causing it to move annularly along the meshing ring teeth 18, which in turn drives the deflector frame 15 connected to it to move. The deflection axis of the deflector frame 15 is coaxial with the air expansion shaft 3, and the deflection angle is consistent with the rotation angle of the air expansion shaft 3. That is, the second clamping roller 8 is relatively stationary with respect to the outer surface of the roll 10, thereby achieving stable clamping of the end edge of the polyurethane film. This ensures that it can accurately wind the roll 10 for one revolution and feed its end directly below the film inlet. The positioning contact plate 19 is used to limit the position of the deflector frame 15 to prevent it from deflecting excessively. The notch provided on the ring teeth 18 facilitates its complete detachment from the winding station and is used to avoid interference when the winding frame 2 is being repositioned.

[0029] The connecting device 5 includes a push plate 20 that can be displaced along the axial direction of the air shaft 3 and a telescopic connector 21 mounted on the push plate 20. One end of the telescopic connector 21 can be engaged with the end of the air shaft 3, and the other end of the telescopic connector 21 is connected to the rotary drive device 4.

[0030] After the air shaft 3 is displaced to its position, the connecting device 5 connects the rotation drive end to the end of the air shaft 3. The displacement of the push plate 20 causes the telescopic connector 21 mounted on it to move, and the end of the telescopic connector 21 engages with one end of the air shaft 3. When the rotation drive device 4 operates, it drives the telescopic connector 21 to rotate, thereby driving the air shaft 3, which is engaged with it, to rotate, thus achieving a rotation drive function for the winding drum 10. During the winding operation of the winding frame 2, the push plate 20 resets and disconnects from the rotation drive device 4, allowing the air shaft 3 to rotate around the center of the winding frame 2.

[0031] Both the deflection frame 15 and the fixed frame 16 are equipped with an adaptive adjustment mechanism. The adaptive adjustment mechanism includes a mounting plate 22, an elastic abutment device, and a disengagement device. The mounting plate 22 is located on the side of the deflection frame 15 or the fixed frame 16 near the air shaft 3. The sliding direction of the mounting plate 22 is consistent with the diameter of the air shaft 3. The first abutment roller 7 and the second abutment roller 8 are respectively mounted on the two mounting plates 22.

[0032] The adaptive adjustment mechanism uses two elastic contact devices to press the first clamping roller 7 and the second clamping roller 8 against the surface of the polyurethane film, ensuring the polyurethane film adheres tightly to the outermost film surface for a tight winding effect. After the roller change is completed, the end of the polyurethane film needs to be attached to the outer surface of the roll 10 and rotate with the roll 10 to achieve the winding function. At this point, the end of the polyurethane film needs to be passed through the first clamping roller 7 and inserted under the second clamping roller 8. The release device in the adaptive adjustment mechanism then moves the first clamping roller 7 and the second clamping roller 8 away from the roll 10. This operation overcomes the elasticity of the contact devices and forces a gap between the first and second clamping rollers and the outer wall of the roll 10. Notably, this equipment uses an automated feeding robot to pass the end of the polyurethane film through the gap between the roll 10 and the first clamping roller 7, and then stops it between the roll 10 and the second clamping roller 8. After the release device is reset, the second pressing roller 8 stably presses the polyurethane film onto the outer wall of the roll 10, allowing it to be wound stably for one turn. Both the elastic pressing device and the release device control the distance between the first pressing roller 7 and the second pressing roller 8 and the outer wall of the roll 10 by adjusting the mounting plate 22.

[0033] The elastic abutment device includes a threaded telescopic rod 23, a sliding rod 24, a fixing ring 25, a spring 26, and an adjusting motor 27. The adjusting motor 27 is fixedly installed on the fixing frame 16 or the deflection frame 15. The output end of the adjusting motor 27 is fixedly connected to the top end of the threaded telescopic rod 23. The middle part of the threaded telescopic rod 23 is installed on the fixing frame 16 or the deflection frame 15. The sliding rod 24 is fixedly installed on the mounting plate 22. The sliding rod 24 and the threaded telescopic rod 23 are coaxially arranged and slidably engaged. The fixing ring 25 is fixedly installed on the outer side wall of the threaded telescopic rod 23. The spring 26 is sleeved on the outside of the fixing rod, and the two ends of the spring 26 are respectively connected to the mounting plate 22 and the fixing ring 25.

[0034] During the winding process, as the roll diameter increases, the elastic contact device adjusts the contact pressure at any time. By adjusting the output of the motor 27, the threaded telescopic rod 23 is rotated and shortened. During the shortening process, the threaded telescopic rod 23 causes the fixing ring 25 installed on its outer wall to move synchronously towards the side closer to the fixing frame 16 or the deflection frame 15, thereby adjusting the distance between the mounting plate 22 and the fixing frame 16 or the deflection frame 15, maintaining the constant elastic force of the spring 26, thereby achieving a constant pressure state on the surface of the polyurethane film and ensuring the winding effect.

[0035] The disengagement device includes a second linear actuator 28, a lifting plate 29, and a lifting contact frame 30. The second linear actuator 28 is fixedly mounted on the fixed frame 16 or the deflection frame 15. The lifting plate 29 is fixedly mounted on the output end of the second linear actuator 28. The lifting contact frame 30 is fixedly mounted on the mounting plate 22. The top of the lifting plate 29 can fit against the inner top of the lifting contact frame 30.

[0036] When the disengagement device is in operation, the output of the second linear actuator 28 drives the lifting plate 29 to move upward. The lifting plate 29, in turn, drives the lifting contact frame 30, which it contacts, to move synchronously. The lifting contact frame 30 then drives the mounting plate 22, which is fixedly connected to it, to move upward and simultaneously compress the spring 26. This causes the first clamping roller 7 or the second clamping roller 8 mounted on the mounting plate 22 to move away from the outer wall of the roll 10, thus facilitating the end of the polyurethane film to pass through the gap and achieve the positioning and clamping function. In the normal clamping state, the lifting plate 29 descends and has an adjustable stroke between it and the lifting contact frame 30. This adjustable stroke ensures that the disengagement device does not interfere with the elastic adjustment process of the elastic contact device.

[0037] The rotary drive device 4 includes a magnetic powder clutch 31 that is connected to the telescopic connector 21. The magnetic powder clutch 31 is mounted on the outer side wall of the frame 1.

[0038] The magnetic powder clutch 31 can precisely control the speed and torque of the air shaft 3, ensuring the stability of the polyurethane film tension during the winding process. When the thickness of the polyurethane film changes, the torque transmitted by the magnetic powder clutch 31 can be changed by adjusting the current, thereby matching the winding speed with the film conveying speed and preventing wrinkles or overstretching of the film.

[0039] Both ends of the winding station and the material changing station on the winding frame 2 are equipped with clamping claws 32 that can clamp the end of the air shaft 3, and the inner sidewalls of the clamping claws 32 are equipped with abutting rollers 33.

[0040] The clamping claws 32 are used to fix the air shaft 3, ensuring its stable position during winding. The contact roller 33 reduces the friction between the air shaft 3 and the clamping claws 32 when the air shaft 3 rotates, making the rotation of the air shaft 3 smoother. It also plays a certain positioning role, ensuring the accuracy of the air shaft 3 installation. When changing rollers, the clamping claws 32 are released, and the air shaft 3 can be directly detached from the winding frame 2, facilitating the loading and unloading of the air shaft 3.

[0041] The end of the first pressing roller 7 or the second pressing roller 8 is connected to the cleaning roller 9 via a synchronous belt 34, and a dust suction head 35 is provided on the side of the cleaning roller 9.

[0042] When the first and second clamping rollers 7 and 8 rotate, they drive the cleaning roller 9, which is connected to them, to rotate synchronously via the synchronous belt 34. The cleaning roller 9 has opposite displacement directions at its contact points with the roller surface, and the contact positions of the two rollers are relatively opposite, thereby achieving the cleaning effect of the cleaning roller 9 on the first or second clamping roller 7 or 8. A dust extraction head 35 is provided on the side of the cleaning roller 9 to quickly suck away the scraped impurities, preventing secondary pollution and ensuring that the cleaning roller 9 always has a high cleaning effect. The dust extraction head 35 is connected to the external ventilation system to ensure its normal operation.

[0043] The above embodiments only illustrate one or more implementations of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A winding apparatus for processing high-performance thermoplastic polyurethane films, characterized in that, The machine includes a frame (1), on which a winding mechanism is mounted. The winding mechanism consists of a repositionable winding frame (2) and two rotatable air shafts (3). The winding frame (2) has a winding station and a material changing station at both ends for mounting the air shafts (3). A rotary drive device (4) is mounted at the winding station on the frame (1). The air shafts (3) are connected to the rotary drive device (4) via a connecting device (5). A clamping mechanism is mounted on the side of the frame (1) near the winding station. The clamping mechanism includes a mounting frame (6) and a first... The first pressing roller (7) and the second pressing roller (8) are elastically connected to the mounting frame (6) through an adaptive adjustment mechanism. The second pressing roller (8) can deflect around the air shaft (3) on the winding station through a synchronous deflection device. The first pressing roller (7) and the second pressing roller (8) are provided with a cleaning roller (9) that rotates synchronously with the air shaft (3) on the side away from the air shaft (3). A detachable drum (10) is installed on the air shaft (3). An ion fan (11) located next to the first pressing roller (7) is also provided on the mounting frame (6).

2. The winding apparatus for processing high-performance thermoplastic polyurethane films according to claim 1, characterized in that, A first linear drive (12) is fixedly installed on the frame (1). A first inclined slide rail (13) is provided on the side wall of the frame (1). The mounting frame (6) is slidably mounted on the frame (1) via the first inclined slide rail (13). The mounting frame (6) is provided with a clearance groove (14) for the avoidance rotation drive device (4) and the connecting device (5). A deflection frame (15) and a fixed frame (16) are installed on the mounting frame (6). The fixed frame (16) is vertically positioned directly above the air shaft (3). The deflection frame (15) is located beside the fixed frame (16). The deflection frame (15) can deflect around the axis of the air shaft (3). A first pressing roller (7) is mounted on the fixed frame (16). A second pressing roller (8) is mounted on the deflection frame (15).

3. The winding apparatus for processing high-performance thermoplastic polyurethane films according to claim 1, characterized in that, The deflector (15) is equipped with a rotatable drive gear (17), and the side wall of the mounting bracket (6) is provided with a ring tooth (18) containing a notch. The notch of the ring tooth (18) is used to avoid the end of the air shaft (3). The drive gear (17) meshes with the ring tooth (18), and the two ends of the ring tooth (18) are provided with positioning contact plates (19) that can abut against the edge of the deflector (15).

4. The winding apparatus for processing high-performance thermoplastic polyurethane films according to claim 1, characterized in that, The connecting device (5) includes a push plate (20) that can be displaced along the axis of the air shaft (3) and a telescopic connector (21) mounted on the push plate (20). One end of the telescopic connector (21) can be engaged with the end of the air shaft (3), and the other end of the telescopic connector (21) is connected to the rotary drive device (4).

5. A winding apparatus for processing high-performance thermoplastic polyurethane films according to claim 1, characterized in that, Both the deflection frame (15) and the fixed frame (16) are equipped with adaptive adjustment mechanisms. The adaptive adjustment mechanisms include mounting plates (22), elastic abutment devices and disengagement devices. The mounting plates (22) are located on the side of the deflection frame (15) or the fixed frame (16) close to the air shaft (3). The sliding direction of the mounting plates (22) is consistent with the diameter of the air shaft (3). The first abutment roller (7) and the second abutment roller (8) are respectively mounted on the two mounting plates (22).

6. The winding apparatus for processing high-performance thermoplastic polyurethane films according to claim 5, characterized in that, The elastic abutment device includes a threaded telescopic rod (23), a sliding rod (24), a fixing ring (25), a spring (26), and an adjusting motor (27). The adjusting motor (27) is fixedly installed on the fixing frame (16) or the deflection frame (15). The output end of the adjusting motor (27) is fixedly connected to the top end of the threaded telescopic rod (23). The middle part of the threaded telescopic rod (23) is installed on the fixing frame (16) or the deflection frame (15). The sliding rod (24) is fixedly installed on the mounting plate (22). The sliding rod (24) is coaxially arranged with the threaded telescopic rod (23) and slides. The fixing ring (25) is fixedly installed on the outer side wall of the threaded telescopic rod (23). The spring (26) is sleeved on the outside of the fixing rod, and the two ends of the spring (26) are respectively connected to the mounting plate (22) and the fixing ring (25).

7. A winding apparatus for processing high-performance thermoplastic polyurethane films according to claim 6, characterized in that, The disengagement device includes a second linear actuator (28), a lifting plate (29), and a lifting contact frame (30). The second linear actuator (28) is fixedly mounted on a fixed frame (16) or a deflection frame (15). The lifting plate (29) is fixedly mounted on the output end of the second linear actuator (28). The lifting contact frame (30) is fixedly mounted on a mounting plate (22). The top of the lifting plate (29) can fit against the inner top of the lifting contact frame (30).

8. A winding apparatus for processing high-performance thermoplastic polyurethane films according to claim 4, characterized in that, The rotary drive device (4) includes a magnetic powder clutch (31) that is connected to the telescopic connector (21) for transmission. The magnetic powder clutch (31) is mounted on the outer side wall of the frame (1).

9. A winding apparatus for processing high-performance thermoplastic polyurethane films according to claim 1, characterized in that, Both ends of the winding station and the material changing station on the winding frame (2) are equipped with clamping claws (32) that can clamp the end of the air shaft (3), and the inner sidewalls of the clamping claws (32) are equipped with abutting rollers (33).

10. A winding apparatus for processing high-performance thermoplastic polyurethane films according to claim 1, characterized in that, The end of the first pressing roller (7) or the second pressing roller (8) is connected to the cleaning roller (9) via a synchronous belt (34), and a dust suction head (35) is provided on the side of the cleaning roller (9).

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