Integrated pulling device for thin films

Abstract

The application discloses an integrated traction device for a film, which comprises a rack and a trimming mechanism, a traction mechanism and a waste edge winding mechanism which are installed on the rack, the trimming mechanism comprises a pair of trimming knives which are oppositely arranged on the left and right sides; the traction mechanism is located at the rear side of the trimming mechanism and comprises a driving steel roller which is rotatably installed on the rack, a traction motor which drives the driving steel roller to rotate around the axis center line, a pressing rubber roller which is swingably installed on the rack and a swing cylinder which is in transmission connection with the pressing rubber roller, and the swing cylinder is used for driving the pressing rubber roller to swing around a center line which is parallel to the driving steel roller so as to adjust the contact area between the film and the driving steel roller; the waste edge winding mechanism comprises a pair of waste edge winding machines which are installed below the trimming mechanism and a pair of waste edge guide wheels which are installed at the rear end of the rack; the application adjusts the wrap angle of the film through the swingable pressing rubber roller, guarantees the flatness and size precision of the film and can efficiently and stably complete the trimming, traction and waste edge winding operation of the film.

Description

Technical Field

[0001] This application relates to the field of thin film production equipment technology, and in particular to an integrated traction device for thin films. Background Technology

[0002] Currently, there are two main types of traction machines used in extrusion equipment: tracked and belt-driven. Both types of traction machines are prone to slippage due to uneven pressure or material surface characteristics (such as the high elasticity of TPU film), resulting in fluctuations in traction speed, which in turn leads to problems such as film stretching deformation or uneven thickness. Summary of the Invention

[0003] To address the aforementioned technical problems, the purpose of this application is to provide a compact, stable, and efficient integrated traction device for thin films.

[0004] To achieve the above objectives, this application adopts the following technical solution: an integrated traction device for thin films, comprising:

[0005] frame,

[0006] The edge-cutting mechanism is mounted on the frame and includes a pair of cutters arranged opposite each other on the left and right sides, each cutter being used to cut the film in the front-back direction;

[0007] A traction mechanism, located behind the trimming mechanism, includes a drive steel roller rotatably mounted on the frame, a traction motor for driving the drive steel roller to rotate around its own axis, a pressing rubber roller oscillatingly mounted on the frame, and an oscillating cylinder drively connected to the pressing rubber roller. The pressing rubber roller is parallel to the drive steel roller. The traction motor and the oscillating cylinder are mounted on the frame. The oscillating cylinder drives the pressing rubber roller to oscillate around a centerline parallel to the drive steel roller to adjust the contact area between the film and the drive steel roller.

[0008] The waste edge winding mechanism includes a pair of waste edge winding machines installed below the cutting mechanism and a pair of waste edge guide wheels installed at the rear end of the frame. The pair of waste edge winding machines are arranged opposite each other to wind up the waste edges cut by the cutting mechanism. The pair of waste edge guide wheels are arranged opposite each other on the outer side of the frame.

[0009] In the above technical solution, a further preferred embodiment is that the frame includes a base frame, a pair of supporting wall panels and a plurality of reinforcing beams, the pair of supporting wall panels are arranged opposite each other on the left and right, the base frame is connected between the bottoms of the pair of supporting wall panels, and the plurality of reinforcing beams are connected between the pair of supporting wall panels, and each of the reinforcing beams extends in the left and right direction.

[0010] In the above technical solution, it is further preferred that the two ends of the active steel roller are rotatably supported between the pair of support wall plates by bearing seats mounted on the pair of support wall plates.

[0011] In the above technical solution, a further preferred embodiment is that the pressing roller is oscillatingly mounted between the pair of support wall plates via a pair of swing arms, one end of each swing arm is rotatably mounted on the corresponding support wall plate via a pin, and the pin rotates around the center line; the other end of each swing arm is connected to the corresponding swing cylinder.

[0012] In the above technical solution, it is further preferred that each of the swing cylinders is also equipped with a rotary handle valve installed on the support wall plate, and the rotary handle valve is connected between the cylinder body of the swing cylinder and the air source.

[0013] In the above technical solution, a further preferred embodiment is that each of the waste edge winding machines is equipped with an adjustment component. The adjustment component includes an adjustment screw rotatably mounted on the corresponding support wall plate and an adjustment handwheel that is drively connected to the adjustment screw. The adjustment screw extends in the left-right direction. Each of the waste edge winding machines is connected to the adjustment screw through a mounting seat that is threadedly engaged with the adjustment screw. The mounting seat is configured to drive the waste edge winding machine to move back and forth along the adjustment screw when the adjustment screw rotates around its own axis. The adjustment handwheel rotates coaxially with the adjustment screw.

[0014] In the above technical solution, a further preferred embodiment is that each of the waste edge winding machines includes a winding motor mounted on the corresponding mounting base, four winding shafts connected to the winding motor, and a baffle mounted between the four winding shafts and the winding motor. The winding motor has a rotating shaft extending outward in the left-right direction. The four winding shafts are all mounted parallel to the rotating shaft at the outer end of the rotating shaft. The baffle is mounted perpendicular to the four winding shafts at the outer end of the rotating shaft.

[0015] In the above technical solution, a further preferred embodiment is that a torque controller is also installed on the frame, and the torque controller is electrically connected to the winding motor.

[0016] In the above technical solution, a further preferred embodiment is that each of the cutters is provided with a transition aluminum roller on its front and rear sides, and each of the transition aluminum rollers is rotatably mounted on the frame and parallel to the drive steel roller.

[0017] In the above technical solution, it is further preferred that the pair of cutters are both disc cutters.

[0018] Compared with the prior art, this application achieves the following beneficial effects:

[0019] This application improves the stability of traction and ensures the flatness and dimensional accuracy of the film by adjusting the wrap angle of the film on the active steel roller through the oscillating pressure roller. Furthermore, based on traction, the cutting and waste edge winding are combined to reduce the footprint, and the traction fluctuation is small and the traction is stable, which can efficiently and stably complete the cutting, traction and waste edge winding operations of the film. Attached Figure Description

[0020] Figure 1 A front view of an integrated traction device for a thin film provided in an embodiment of this application;

[0021] Figure 2 for Figure 1 Side view of the integrated traction device.

[0022] The components include: 100. Integrated traction equipment; 1. Frame; 11. Base frame; 12. Support wall panel; 13. Reinforcing crossbeam; 2. Edge trimming mechanism; 21. Cutting knife; 22. Transition aluminum roller; 3. Traction mechanism; 31. Drive steel roller; 32. Traction motor; 33. Pressing rubber roller; 34. Swing cylinder; 35. Rotary handle valve; 36. Swing arm; 37. Pin shaft; 4. Waste edge winding mechanism; 41. Waste edge winding machine; 411. Winding motor; 412. Winding shaft; 413. Baffle; 42. Waste edge guide wheel; 43. Adjustment assembly; 431. Adjusting screw; 432. Adjusting handwheel; 433. Mounting base; 44. Torque controller. Detailed Implementation

[0023] To illustrate the technical content, structural features, achieved objectives, and effects of the application in detail, the technical solutions of the embodiments of this application will be described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. In the following description, for illustrative purposes, numerous specific details are set forth to provide a detailed description of various exemplary embodiments or implementations of the invention. However, various exemplary embodiments may also be implemented without these specific details or in one or more equivalent arrangements. Furthermore, the various exemplary embodiments may differ, but are not necessarily exclusive. For example, the specific shape, structure, and characteristics of the exemplary embodiments may be used or implemented in another exemplary embodiment without departing from the inventive concept.

[0024] This application provides an integrated traction device for thin films, which is used to traction thin films from front to back, ensuring smooth traction of the thin films and reducing film damage.

[0025] like Figure 1 , 2 As shown, the integrated traction device 100 includes a frame 1 and a cutting mechanism 2, a traction mechanism 3 and a waste edge winding mechanism 4 mounted on the frame 1.

[0026] The frame 1 includes a base frame 11, a pair of supporting wall plates 12 and several reinforcing beams 13. The pair of supporting wall plates 12 are arranged opposite each other on the left and right sides. The base frame 11 is connected between the bottoms of the pair of supporting wall plates 12. Each reinforcing beam 13 extends in the left and right direction and is connected between the pair of supporting wall plates 12 to enhance the overall stability of the frame 1.

[0027] The edge-cutting mechanism 2 is mounted on the frame 1 and includes a pair of cutters 21 arranged opposite each other on the left and right sides. Each cutter 21 is used to cut the film in the front-to-back direction. In this embodiment, the pair of cutters 21 are both disc cutters and are movable on the frame 1 in the left-to-right and up-down directions to adapt to the cutting requirements of films of different widths and thicknesses. Transition aluminum rollers 22 are respectively provided on the front and rear sides of each cutter 21. Each transition aluminum roller 22 is rotatably mounted on the frame 1 and extends in the left-to-right direction. The transition aluminum rollers 22 on the front and rear sides of each cutter 21 are used to guide the film to transition smoothly.

[0028] The traction mechanism 3 is located behind the trimming mechanism 2, and includes a drive steel roller 31, a traction motor 32, a pressing rubber roller 33, and a swing cylinder 34. The two ends of the drive steel roller 31 are rotatably supported between a pair of support wall plates 12 via bearing seats. The axis of the drive steel roller 31 extends in the left-right direction, and the pair of bearing seats are fixedly installed on the inner sides of the pair of support wall plates 12. The traction motor 32 is mounted on the frame 1 and is connected to the drive steel roller 31 for driving the drive steel roller 31 to rotate around its own axis.

[0029] The pressing roller 33 is mounted between a pair of support wall plates 12 by a pair of swing arms 36 that can swing around a center line X1. The center line X1 and the pressing roller 33 are both parallel to the drive steel roller 31. The two ends of the pressing roller 33 are rotatably mounted in the middle of the pair of swing arms 36 by bearing seats. The pressing roller 33 can rotate around its own axis and swing around the center line X1 by a pair of swing arms 36 and is mounted on the frame 1. One end of each swing arm 36 is rotatably mounted on the corresponding support wall plate 12 via a pin 37. Each pin 37 rotates around the center line X1. The other end of each swing arm 36 is connected to the corresponding swing cylinder 34. The swing cylinder 34 drives the corresponding swing arm 36 to drive the pressing roller 33 to swing around the center line X1, thereby adjusting the contact area between the film passing over the active steel roller 31 and the active steel roller 31, that is, changing the size of the wrap angle of the film on the active steel roller 31. When the wrap angle between the film and the active steel roller 31 is increased, the film can be subjected to more uniform force during traction, which can effectively reduce the generation of internal stress and prevent problems such as excessive local stretching or wrinkles of the film. In addition, this structure also significantly improves the stability of traction, because a larger wrap angle can increase the contact area between the film and the traction roller, thereby increasing the friction and making the traction process more stable, which is conducive to maintaining the stability of tension and can minimize the traction force, avoiding the film from slipping or deviating during traction, and ensuring the flatness and dimensional accuracy of the film.

[0030] Each swing cylinder 34 is also equipped with a rotary handle valve 35, which connects the cylinder body of the swing cylinder 34 to the air source. The operator can control the air intake of the swing cylinder 34 by operating the rotary handle valve 35, thereby adjusting the working state of the swing cylinder 34.

[0031] The waste edge winding mechanism 4 includes a pair of waste edge winding machines 41 and a pair of waste edge guide wheels 42. The pair of waste edge winding machines 41 are installed opposite each other below the edge cutting mechanism 2 for winding up the waste edges cut off by the edge cutting mechanism 2. The pair of waste edge guide wheels 42 are installed opposite each other on the outer side of the rear end of a pair of support wall plates 12 for guiding the waste edges cut off by the edge cutting mechanism 2 to the shredder outside the integrated traction device 100 so that the shredder can crush the waste edges for reuse.

[0032] Each waste edge winding machine 41 is equipped with an adjustment assembly 43, which includes an adjustment screw 431 and an adjustment handwheel 432. The adjustment screw 431 extends in the left-right direction and is rotatably mounted on the corresponding support wall plate 12. The adjustment handwheel 432 rotates coaxially with the adjustment screw 431. Each waste edge winding machine 41 is connected to the adjustment screw 431 via a mounting seat 433 that is threaded into the adjustment screw 431. When the operator rotates the adjustment handwheel 432, the adjustment screw 431 rotates around its own axis. The mounting seat 433, which is threaded into the adjustment screw 431, drives the waste edge winding machine 41 to move back and forth along the adjustment screw 431 to adjust the position of the waste edge winding machine 41 in the left-right direction, so that a pair of waste edge winding machines 41 can adapt to the waste edge winding of films of different widths.

[0033] Each waste edge winding machine 41 includes a winding motor 411, four winding shafts 412, and a baffle 413. The winding motor 411 is mounted on a mounting base 433 and has a rotating shaft extending outward in the left-right direction. The four winding shafts 412 are mounted parallel to the rotating shaft at its outer end, and are symmetrically arranged about the axis of the rotating shaft. When the winding motor 411 is working, the rotating shaft rotates, and the four winding shafts 412 rotate around the axis of the rotating shaft, thereby winding up the waste edge. The baffle 413 is mounted perpendicular to the four winding shafts 412 at the outer end of the rotating shaft to prevent the waste edge from falling off.

[0034] A torque controller 44 is also installed on the frame 1. The torque controller 44 is electrically connected to a pair of take-up motors 411. The torque controller 44 controls the torque of the take-up motors 411, thereby adjusting the take-up tension of each waste edge take-up machine 41.

[0035] The integrated traction device of this application integrates edge cutting, waste edge winding, and traction into one device. It has a compact structure, reduces the floor space, improves the coordination and production efficiency of the equipment, and can avoid the separation of cutting and winding stations, thus solving the problem of waste edge drifting and entanglement of the equipment due to station separation.

[0036] The working process of this application is as follows: The film enters from the front of the equipment and is trimmed by the cutter 21 of the trimming mechanism 2. The trimmed waste edges can be sent to the external shredder via the waste edge guide roller 42, or they can be wound up by a pair of waste edge winding machines 41. The trimmed film is then pulled backward by the drive steel roller 31 and the pressure roller 33 of the traction mechanism 3. The operator can adjust the swing angle of the pressure roller 33 by using the swing cylinder 34, which can change the wrap angle of the film on the drive steel roller 31, thereby optimizing the traction effect.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this application. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this application. Various changes and modifications can be made without departing from the spirit and scope of this application. The scope of protection claimed by this application is defined by the appended claims, specification, and their equivalents.

Claims

1. An integrated traction device for thin films, characterized in that, include: frame, The edge-cutting mechanism is mounted on the frame and includes a pair of cutters arranged opposite each other on the left and right sides, each cutter being used to cut the film in the front-back direction; A traction mechanism is located behind the trimming mechanism. The traction mechanism includes a drive steel roller rotatably mounted on the frame, a traction motor for driving the drive steel roller to rotate around its own axis, a pressing rubber roller oscillatingly mounted on the frame, and an oscillating cylinder connected to the pressing rubber roller in a transmission. The pressing rubber roller is parallel to the drive steel roller. The traction motor and the oscillating cylinder are mounted on the frame. The oscillating cylinder is used to drive the pressing rubber roller to oscillate around a center line parallel to the drive steel roller to adjust the contact area between the film and the drive steel roller. and The waste edge winding mechanism includes a pair of waste edge winding machines installed below the cutting mechanism and a pair of waste edge guide wheels installed at the rear end of the frame. The pair of waste edge winding machines are arranged opposite each other to wind up the waste edges cut by the cutting mechanism. The pair of waste edge guide wheels are arranged opposite each other on the outer side of the frame.

2. The integrated traction device according to claim 1, characterized in that, The frame includes a base frame, a pair of supporting wall panels and several reinforcing beams. The pair of supporting wall panels are arranged opposite each other on the left and right sides. The base frame is connected between the bottoms of the pair of supporting wall panels. The several reinforcing beams are connected between the pair of supporting wall panels, and each of the reinforcing beams extends in the left and right direction.

3. The integrated traction device according to claim 2, characterized in that, The two ends of the active steel roller are rotatably supported between the pair of support wall plates by bearing seats mounted on the pair of support wall plates.

4. The integrated traction device according to claim 2, characterized in that, The pressing roller is oscillatingly mounted between the pair of support wall plates via a pair of swing arms. One end of each swing arm is rotatably mounted on the corresponding support wall plate via a pin, and the pin rotates around the center line. The other end of each swing arm is connected to the corresponding swing cylinder.

5. The integrated traction device according to claim 2, characterized in that, Each of the aforementioned swing cylinders is also equipped with a rotary handle valve mounted on the support wall plate, the rotary handle valve being connected between the cylinder body of the swing cylinder and the air source.

6. The integrated traction device according to claim 2, characterized in that, Each of the aforementioned waste edge winding machines is equipped with an adjustment assembly, which includes an adjustment screw rotatably mounted on the corresponding support wall plate and an adjustment handwheel drively connected to the adjustment screw. The adjustment screw extends in a left-right direction. Each of the aforementioned waste edge winding machines is connected to the adjustment screw via a mounting seat that is threaded into the adjustment screw. The mounting seat is configured to drive the waste edge winding machine to move back and forth along the adjustment screw when the adjustment screw rotates about its own axis. The adjustment handwheel rotates coaxially with the adjustment screw.

7. The integrated traction device according to claim 6, characterized in that, Each of the aforementioned waste edge winding machines includes a winding motor mounted on a corresponding mounting base, four winding shafts connected to the winding motor, and a baffle mounted between the four winding shafts and the winding motor. The winding motor has a rotating shaft extending outward in a left-right direction. The four winding shafts are all mounted parallel to the rotating shaft at the outer end of the rotating shaft, and the baffle is mounted perpendicular to the four winding shafts at the outer end of the rotating shaft.

8. The integrated traction device according to claim 7, characterized in that, A torque controller is also installed on the frame, and the torque controller is electrically connected to the winding motor.

9. The integrated traction device according to claim 1, characterized in that, Each of the aforementioned cutters is provided with a transition aluminum roller on its front and rear sides. Each of the aforementioned transition aluminum rollers is rotatably mounted on the frame and is parallel to the aforementioned drive steel roller.

10. The integrated traction device according to claim 1, characterized in that, Both of the aforementioned cutting blades are disc cutting blades.

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