A TPU film trimming device

Abstract

The utility model relates to a TPU film trimming device, aiming to solve the technical problems that the current TPU film trimming device cannot synchronously fix the film winding roller and limit the position of the film when winding after trimming, and the film is prone to position deviation during the winding process. The utility model comprises a base, wherein the middle and both ends of the base are provided with track grooves, the inside of the track grooves are rotatably connected with a bidirectional threaded screw, one end of the bidirectional threaded screw is fixedly connected to the output end of a first servo motor, and the utility model can make a group of film roller clamping plates and film limiting plates move synchronously according to the width of the TPU film after trimming, so as to fix the film winding roller and limit the position of the film when winding after trimming, avoid the phenomenon of position deviation of the film during the winding process, and can also reduce the use of motors and reduce the manufacturing cost of the trimming device.

Description

Technical Field

[0001] The utility model relates to the field of TPU film edge cutting, in particular to a TPU film edge cutting device. Background Art

[0002] TPU film is a film made on the basis of TPU granules through special processes such as calendering, casting, film blowing, coating, etc. In the production of TPU film, it needs to be trimmed, and a TPU film trimming device is needed for trimming.

[0003] According to the published patent 202322259330.X, a TPU film trimming device includes a base, and the four corners of the top of the base are fixedly connected with a fixed plate, and the adjacent sides of the plurality of fixed plates are rotatably connected with a second rotating rod, and the outer side of the second rotating rod on the left side is fixedly connected with an unwinder, and the outer side of the second rotating rod on the right side is provided with a winding machine, and the front side of the fixed plate on the front side of the left end is fixedly connected with a first motor, and the output end of the first motor is connected to the second rotating rod on the left side. In the process of realizing the utility model, the inventor found that at least the following problems in the prior art have not been solved. The cutting size and position can be adjusted by the cooperation between the base, the second rotating rod, the fixed plate, the first motor and the rack structure to solve the problem of low working efficiency of the device. During use, the traditional TPU film trimming device cannot allow a group of film roller clamping plates and film limiting plates to move synchronously according to the width of the TPU film after trimming, so that the film winding roller cannot be fixed synchronously and the position of the film after trimming cannot be limited when winding, and the film is prone to position deviation during the winding process. Therefore, it is necessary to design a new technical solution. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art, meet actual needs, and provide a TPU film trimming device to solve the technical problems that the current TPU film trimming device cannot synchronously fix the film winding roller and limit the position of the film when it is wound after trimming, and the film is prone to position deviation during the winding process.

[0005] In order to achieve the purpose of the utility model, the technical solution adopted by the utility model is as follows: a TPU film trimming device is designed, including a base, track grooves are provided in the middle and both ends of the base, and bidirectional threaded screws are rotatably connected inside the track grooves, one end of one of the bidirectional threaded screws is fixedly connected to the output end of the first servo motor, one end of the other two bidirectional threaded screws is connected to a worm through a worm gear, one end of the worm is fixedly connected to the output end of the second servo motor, the bidirectional threaded screws at both ends of the base are respectively connected to two film roller clamping plates, and film winding rollers are movably connected to the two film roller clamping plates, a film limiting plate is installed on the bidirectional threaded screw in the middle of the base, a trimming knife is provided at one end of the film limiting plate, and two through grooves are provided on one side of the film limiting plate, and three groups of support plates are also installed at the edge of the base, and the three groups of support plates are connected to the first conveying roller through a driving motor, the other end of the first conveying roller is connected to the second gear through a first gear, and the other end of the second gear is installed with a second conveying roller.

[0006] Preferably, one end of the two worm wheels is fixedly connected to one end of the two bidirectional threaded screws, and the toothed end of the worm wheel is meshed with the toothed end of the worm screw.

[0007] Preferably, the bottom end of the film limiting plate is connected to the outside of the bidirectional threaded screw through a thread, and is slidably connected to the inner wall of the track groove.

[0008] Preferably, the blade of the trimming knife is flush with the shielding surface of the film limiting plate and is fixedly connected to one end of the film limiting plate, and one end of the film limiting plate passes through the outside of the first conveying roller and the second conveying roller through two through slots.

[0009] Preferably, the mounting end of the drive motor is fixedly connected to one side of the support plate, and both ends of the first conveying roller and the second output roller are rotatably connected between the two support plates, wherein one end of the first conveying roller is fixedly connected to the output end of the drive motor.

[0010] Preferably, one end of the first gear is fixedly connected to the other end of the first conveying roller, one end of the second gear is fixedly connected to the other end of the second conveying roller, and the toothed end of the first gear is meshed with the toothed end of the second gear.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The utility model combines a bidirectional threaded screw, a worm gear, a worm, a second servo motor, a film limiting plate and a trimming knife. When the film winding roller is fixed and the spacing of the film limiting plates is adjusted, the second servo motor drives the worm gear to rotate, and the worm gear drives the worm gear to rotate. At this time, the worm gear drives two adjacent bidirectional threaded screws to rotate, so that the two bidirectional threaded screws drive a group of film roller clamping plates and two film limiting plates to move relative to each other, so that a group of film roller clamping plates and the film limiting plates can be moved synchronously according to the width of the TPU film after trimming, so as to achieve the purpose of fixing the film winding roller and limiting the position of the film when winding after trimming, avoiding the phenomenon of position deviation of the film during the winding process, reducing the use of motors, and reducing the manufacturing cost of the trimming device.

[0013] The driving motor will drive the first conveying roller to rotate, and then the first conveying roller will drive the second gear to rotate through the first gear, and then the second gear will drive the second conveying roller to rotate, so as to convey the TPU film. When the TPU film passes through the trimming knife, the trimming knife will automatically cut off the excess parts at both ends of the TPU film, thereby improving the efficiency of the trimming device in trimming the TPU film. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 This is a connection diagram of the first gear and the second gear of the utility model;

[0016] Figure 3 This is a schematic diagram of the base structure of the utility model;

[0017] In the figure: 1, base; 11, track groove; 12, bidirectional threaded screw; 13, first servo motor; 14, worm gear; 15, worm; 16, second servo motor;

[0018] 2. Film roller clamping plate; 21. Film winding roller;

[0019] 3. Film limiting plate; 31. Edge cutting knife; 32. Through slot;

[0020] 4. Support plate; 41. Drive motor; 42. First conveying roller; 43. First gear; 44. Second gear; 45. Second conveying roller. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0022] Embodiment 1: A TPU film trimming device, see Figures 1 to 3, including a base 1, the middle and both ends of the base 1 are provided with track grooves 11, the inside of the track grooves 11 are rotatably connected with bidirectional threaded screws 12, one end of a bidirectional threaded screw 12 is fixedly connected to the output end of the first servo motor 13, one end of the other two bidirectional threaded screws 12 is connected to a worm 15 through a worm gear 14, one end of the worm 15 is fixedly connected to the output end of the second servo motor 16, one end of the two worm gears 14 is fixedly connected to one end of the two bidirectional threaded screws 12, the toothed end of the worm gear 14 is meshed with the toothed end of the worm 15, when the film winding roller is fixed and the spacing of the film limiting plate 3 is adjusted, the second servo motor 16 will drive the worm 15 to rotate, and then the worm 15 will drive the worm wheel 14 to rotate, and then the worm wheel 14 will drive the two adjacent bidirectional threaded screws 12 to rotate, so that the two bidirectional threaded screws 12 can drive a group of film roller clamping plates 2 and two film limiting plates 3 to move relatively, so that a group of film roller clamping plates 2 and film limiting plates 3 can be moved synchronously according to the width of the TPU film after trimming, so as to fix the film winding roller and limit the position of the film when winding after trimming, avoid the phenomenon of position deviation of the film during the winding process, and can also reduce the use of motors and reduce the manufacturing cost of the trimming device;

[0023] The bidirectional threaded screws 12 at both ends of the base 1 are respectively connected to two film roller clamping plates 2, and the two film roller clamping plates 2 are movably connected with film winding rollers 21. A film limiting plate 3 is installed on the bidirectional threaded screw 12 in the middle of the base 1. The bottom end of the film limiting plate 3 is connected to the outside of the bidirectional threaded screw 12 through a thread, and is slidably connected to the inner wall of the track groove 11. One end of the film limiting plate 3 is provided with a trimming knife 31. The blade of the trimming knife 31 is flush with the shielding surface of the film limiting plate 3 and is fixedly connected to one end of the film limiting plate 3. One end of the film limiting plate 3 passes through the outside of the first conveying roller 42 and the second conveying roller 45 through two through grooves 32. Two through grooves 32 are provided on one side of the film limiting plate 3. When the TPU film passes through the trimming knife 31, the trimming knife 31 will automatically cut off the excess parts at both ends of the TPU film, thereby improving the efficiency of the trimming device in trimming the TPU film.

[0024] Three groups of support plates 4 are also installed at the edge of the base 1, and the three groups of support plates 4 are connected to the first conveying roller 42 through the driving motor 41. The other end of the first conveying roller 42 is connected to the second gear 44 through the first gear 43, and the other end of the second gear 44 is installed with the second conveying roller 45. The mounting end of the driving motor 41 is fixedly connected to one side of the support plate 4, and the first conveying roller 42 and the second output roller are rotatably connected between the two support plates 4, wherein one end of the first conveying roller 42 is fixedly connected to the output end of the driving motor 41, one end of the first gear 43 is fixedly connected to the other end of the first conveying roller 42, and one end of the second gear 44 is fixedly connected to the other end of the second conveying roller 45, and the toothed end of the first gear 43 is meshed with the toothed end of the second gear 44. The driving motor 41 will drive the first conveying roller 42 to rotate, and then the first conveying roller 42 drives the second gear 44 to rotate through the first gear 43, and then the second conveying roller 45 is driven by the second gear 44 to rotate, so as to convey the TPU film.

[0025] In addition, the components designed in the present invention are all universal standard parts or components known to technical personnel in the field. Their structures and principles can be known to technical personnel through technical manuals or through conventional experimental methods. They can be fully implemented by technical personnel in the field, and there is no need to elaborate. The content protected by the present invention does not involve improvements to internal structures and methods.

[0026] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A TPU film trimming device, comprising a base (1), characterized in that: The base (1) is provided with a track groove (11) in the middle and at both ends. A bidirectional threaded screw (12) is rotatably connected inside the track groove (11). One end of one of the bidirectional threaded screws (12) is fixedly connected to the output end of a first servo motor (13). One end of the other two bidirectional threaded screws (12) is connected to a worm (15) via a worm gear (14). One end of the worm (15) is fixedly connected to the output end of a second servo motor (16). The bidirectional threaded screws (12) at both ends of the base (1) are respectively connected to two film roller clamping plates (2). The two film roller clamping plates (2) are movably connected to the two film roller clamping plates. A film winding roller (21) is provided, a film limiting plate (3) is installed on a bidirectional threaded screw (12) in the middle of the base (1), one end of the film limiting plate (3) is provided with a trimming knife (31), one side of the film limiting plate (3) is provided with two through grooves (32), three groups of support plates (4) are also installed at the edge of the base (1), the three groups of support plates (4) are connected to a first conveying roller (42) through a driving motor (41), the other end of the first conveying roller (42) is connected to a second gear (44) through a first gear (43), and the other end of the second gear (44) is installed with a second conveying roller (45).

2. A TPU film trimming device as claimed in claim 1, characterized in that: One end of the two worm wheels (14) is fixedly connected to one end of the two bidirectional threaded screws (12), and the toothed end of the worm wheels (14) is meshed with the toothed end of the worm (15).

3. A TPU film trimming device as claimed in claim 1, characterized in that: The bottom end of the film limiting plate (3) is connected to the outside of the bidirectional threaded screw (12) via a thread, and is slidably connected to the inner wall of the track groove (11).

4. A TPU film trimming device as claimed in claim 1, characterized in that: The blade of the trimming knife (31) is flush with the shielding surface of the film limiting plate (3) and is fixedly connected to one end of the film limiting plate (3); one end of the film limiting plate (3) passes through the outside of the first conveying roller (42) and the second conveying roller (45) via two through slots (32).

5. A TPU film trimming device as claimed in claim 1, characterized in that: The mounting end of the driving motor (41) is fixedly connected to one side of the supporting plate (4), and both ends of the first conveying roller (42) and the second output roller are rotatably connected between the two supporting plates (4), wherein one end of the first conveying roller (42) is fixedly connected to the output end of the driving motor (41).

6. A TPU film trimming device as claimed in claim 1, characterized in that: One end of the first gear (43) is fixedly connected to the other end of the first conveying roller (42), one end of the second gear (44) is fixedly connected to the other end of the second conveying roller (45), and the toothed end of the first gear (43) is meshed with the toothed end of the second gear (44).

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