A TPV film production is with breaking device

Abstract

This application relates to the field of TPU film segmentation technology, and in particular to a segmentation device for TPU film production, comprising a circular telescopic assembly. The circular telescopic assembly is equipped with a moving mechanism having a free-moving fixed ring. The moving mechanism includes a positioning screw and a second fixed ring. The inner rings of both the first and second fixed rings are rotatably connected to the outer circumference of a drive shaft. The first fixed ring is threadedly connected to the positioning screw and abuts against the outer circumference of the drive shaft. The circular telescopic assembly is equipped with a locking mechanism having a threaded rod locking function. This invention, by loosening the positioning screw so that it does not abut against the drive shaft, allows the circular telescopic assembly and the segmentation assembly to slide freely on the drive shaft, thereby accommodating different cutting widths required during TPU film segmentation. This greatly increases the flexibility of the circular telescopic assembly and the segmentation assembly, avoiding the limitations of the circular telescopic assembly and the segmentation assembly being fixed and unable to adjust their position.

Description

Technical Field

[0001] This application relates to the field of TPU film segmentation technology, and in particular to a segmentation device for TPU film production. Background Technology

[0002] In TPU film production, the slitting device is usually used in the pre- or post-processing stage before winding. Its core process is the transverse / longitudinal cutting and winding of continuous film or the precise cutting of defective areas.

[0003] A search revealed Chinese Patent Publication No. CN218319870U, which discloses a cutting device for TPU film production. The device includes a mounting frame, a cutting mechanism, and a transmission mechanism. The cutting mechanism is installed inside the mounting frame, and the transmission mechanism is installed outside the mounting frame. A transmission shaft is rotatably connected to the inner walls of both sides of the mounting frame via bearings. The cutting mechanism includes multiple pressure rollers sleeved on the transmission shaft. A groove is formed on the outer circumference of each pressure roller, and a cutter is fixedly connected within the groove. A limit block is fixedly connected to the outer wall of one end of each pressure roller. By setting the limit block, the pressure rollers, and the rotating sleeve, rotating the rotating sleeve fixes the cutting mechanism to the transmission shaft. Through the cooperation of the internal threaded groove of the rotating sleeve and the gear at the top of the pressure block, multiple pressure blocks can slide out along the inclined groove when the rotating sleeve is rotated, allowing the cutting mechanism to be adjusted to a suitable position.

[0004] Regarding the aforementioned technologies, the inventors have discovered the following defects in this patent:

[0005] The cutting component in this patent is located on the drive shaft, and the cutters are equidistantly positioned on the drive shaft. When the TPU film needs to be cut into different widths, the position adjustment of the cutters in this patent is very cumbersome, making it difficult to adjust flexibly.

[0006] Therefore, in response to the above problems, the applicant provides a splitting device for TPU film production. Utility Model Content

[0007] In order to solve the problems mentioned in the background art, this application provides a cutting device for TPU film production.

[0008] This application provides a TPU film production splitting device, which adopts the following technical solution:

[0009] A TPU film production cutting device includes a circular telescopic assembly. The circular telescopic assembly is provided with a moving mechanism having a free-moving function of a fixed ring. The moving mechanism includes a positioning screw and a fixed ring. The inner rings of both the fixed ring and the fixed ring are rotatably connected to the outer circumference of a drive shaft. The fixed ring is threaded with a positioning screw and abuts against the outer circumference of the drive shaft.

[0010] The circular telescopic assembly is provided with a locking mechanism that has a threaded rod locking function. The locking mechanism includes an internal threaded sleeve, the threaded rod is threadedly connected to the internal threaded sleeve, and a throttle is fixedly connected to the end of the threaded rod.

[0011] Optionally, a large gear is fixedly connected to one end of the first fixed ring, and a second fixed ring is fixedly connected to the back of the large gear. Multiple sliding tracks are fixedly connected to the back of the second fixed ring in a circular array, and a positioning screw is rotatably connected to the drive shaft.

[0012] Optionally, the large gear has multiple arc-shaped through slots arranged in a ring array, and each of the multiple sliding tracks is slidably connected to a slide rail. Each of the multiple slide rails has a positioning rod fixed on one side, and the multiple positioning rods are inserted into the arc-shaped through slots.

[0013] Optionally, a connecting end is fixedly connected to one of the slide rails, and a threaded rod is rotatably connected to the connecting end. A small gear is fixedly connected to a section of the threaded rod near the connecting end, and the small gear meshes with a large gear.

[0014] Optionally, one end of each of the multiple slide rails is fixedly connected to a fifth-section circular plate, and each of the multiple fifth-section circular plates is provided with an arc-shaped groove.

[0015] Optionally, multiple arc-shaped slots are engaged with a retaining ring, and the outer circumferential wall of the retaining ring is fixedly connected to the inner circumferential wall of the pressure roller.

[0016] Optionally, a groove is provided in the middle of the pressing roller, and a cutter is fixedly connected in the groove. The cutter has a ring structure and its outer diameter is larger than that of the outer ring of the pressing roller. The pressing roller and the cutter are combined into a segmented assembly. Multiple sets of circular telescopic assemblies and segmented assemblies are provided on the drive shaft, and the two ends of the drive shaft are connecting ends.

[0017] In summary, this application includes the following beneficial technical effects:

[0018] 1. This utility model allows the circular telescopic component and the segmented component to slide freely on the drive shaft by loosening the positioning screw so that it does not block the drive shaft. This allows them to be used at different positions to accommodate the different cutting widths required when cutting TPU film, thus greatly increasing the flexibility of the circular telescopic component and the segmented component and avoiding the limitation of the circular telescopic component and the segmented component being fixed and unable to be adjusted.

[0019] 2. This utility model uses a throttle to drive the threaded rod to rotate, and the threaded rod drives the small gear to rotate and mesh with the large gear, thereby bringing the one-fifth section of the circular plate together towards the center, which facilitates the disassembly of the segmented components. The disassembled segmented components are then moved to the connection end of the drive shaft, which is suitable for the number of TPU film segments. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the disassembled structure of the circular telescopic component and the segmented component in the embodiments of this application;

[0021] Figure 2 This is a schematic diagram of the disassembled structure of the circular telescopic component, the segmented component, and the drive shaft in the embodiments of this application;

[0022] Figure 3 This is a schematic diagram of the overall structure in an embodiment of this application;

[0023] Figure 4 This is an embodiment of the present application. Figure 2 A magnified schematic diagram of the structure at point A.

[0024] Reference numerals in the attached diagram: 1. Drive shaft; 2. Fixing ring one; 3. Positioning screw; 4. Large gear; 40. Arc-shaped through groove; 5. Fixing ring two; 6. Slide rail; 60. Connecting end; 7. Slide rail; 8. Positioning rod; 9. One-fifth section of circular plate; 90. Arc-shaped retaining groove; 10. Small gear; 11. Threaded rod; 110. Turning handle; 12. Internal threaded sleeve; 13. Pressure roller; 130. Snap ring; 14. Cutting knife. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0026] This application discloses a cutting device for TPU film production.

[0027] like Figure 1-4 As shown, a TPU film production cutting device includes a circular telescopic component. The circular telescopic component is provided with a moving mechanism that has a free movement function of a fixed ring 2. The moving mechanism includes a positioning screw 3 and a fixed ring 5. The inner rings of the fixed ring 2 and the fixed ring 5 are rotatably connected to the outer circumference of the drive shaft 1. The fixed ring 2 is threadedly connected to the positioning screw 3 and abuts against the outer circumference of the drive shaft 1.

[0028] The circular telescopic assembly is provided with a locking mechanism that has a locking function of threaded rod 11. The locking mechanism includes an internal threaded sleeve 12, the threaded rod 11 is threadedly connected to the internal threaded sleeve 12, and a throttle 110 is fixedly connected to the end of the threaded rod 11.

[0029] Please see Figure 1 One end of the fixed ring 2 is fixedly connected to a large gear 4, and the back of the large gear 4 is fixedly connected to a fixed ring 5. The back of the fixed ring 5 is fixedly connected to multiple sliding rails 6 in a ring array. The drive shaft 1 is rotatably connected to a positioning screw 3. A through hole is opened at the center of the positioning screw 3, so that the drive shaft 1 can pass through.

[0030] Please see Figure 1 The large gear 4 has multiple arc-shaped through slots 40 arranged in a ring array. Each of the multiple sliding tracks 6 is slidably connected to a slide rail 7. Each of the slide rails 7 has a positioning rod 8 fixed on one side. The multiple positioning rods 8 are inserted into the arc-shaped through slots 40. The circular telescopic component consists of the large gear 4, the sliding track 6, the slide rail 7, the positioning rod 8, a fifth-section circular plate 9, and the small gear 10.

[0031] Please see Figure 1 One of the slide rails 6 is fixedly connected to a connecting end 60, and the connecting end 60 is rotatably connected to a threaded rod 11. A small gear 10 is fixedly connected to a section of the threaded rod 11 near the connecting end 60. The small gear 10 meshes with a large gear 4. When the handle 110 is turned, the handle 110 drives the threaded rod 11 and the small gear 10 to rotate. The rotation of the small gear 10 meshes with the large gear 4, causing the large gear 4 to rotate. The rotation of the large gear 4 causes the arc-shaped through groove 40 to drive the positioning rod 8 to move closer to or further away from the center position of the fixed ring 2 5, thus causing the slide rail 7 on the positioning rod 8 to shrink synchronously into a circle or become multiple segments.

[0032] Please see Figure 2 One end of each of the multiple slide rails 7 is fixedly connected to a fifth-section circular plate 9, and each fifth-section circular plate 9 has an arc-shaped slot 90.

[0033] Please see Figure 3 Multiple arc-shaped slots 90 are engaged with a retaining ring 130. The outer circumference of the retaining ring 130 is fixedly connected to the inner circumference of the pressure roller 13. The arc-shaped slots 90 can be engaged in the retaining ring 130 to position the pressure roller 13 and prevent it from rotating.

[0034] Please see Figure 3 A groove is provided in the middle of the pressure roller 13, and a cutter 14 is fixedly connected in the groove. The cutter 14 has a ring structure and its outer diameter is larger than that of the outer ring of the pressure roller 13. The pressure roller 13 and the cutter 14 are combined into a segmented assembly. Multiple sets of circular telescopic assemblies and segmented assemblies are provided on the drive shaft 1. The two ends of the drive shaft 1 are the connecting ends. The setting that the outer diameter of the cutter 14 is larger than that of the pressure roller 13 is mainly to facilitate the cutter 14 to segment the TPU film and the pressure roller 13 to flatten the TPU film.

[0035] The implementation principle of a TPU film production splitting device according to an embodiment of this application is as follows:

[0036] When multiple segmented components are not required to be positioned on drive shaft 1, the operation is as follows:

[0037] The operator first rotates the positioning screw 3 so that it does not contact the drive shaft 1, so that the fixing ring 2 can rotate around the drive shaft 1 without being restricted by the positioning screw 3. The operator holds the drive shaft 1 and rotates the internal threaded sleeve 12 close to the throttle 110 so that the internal threaded sleeve 12 does not abut against the pinion 10, so that the pinion 10 can rotate freely with the threaded rod 11.

[0038] The operator turns the throttle 110, which drives the threaded rod 11 and the small gear 10 to rotate. The small gear 10 rotates and meshes with the large gear 4, causing the large gear 4 to rotate. The rotation of the large gear 4 causes the arc-shaped through groove 40 to drive the positioning rod 8 to move closer to the center position of the fixed ring 5, so that the slide rail 7 slides centrally on the slide rail 6. The slide rail 7 drives the one-fifth section of the circular plate 9 to slowly converge centrally. As the one-fifth section of the circular plate 9 converges, the arc-shaped retaining groove 90 does not engage with the retaining ring 130, and the retaining ring 130 can slide freely on the drive shaft 1. At this time, the pressure roller 13 is slid on... On the connecting end of the drive shaft 1, so that it does not participate in the TPU film cutting work, after sliding the pressure roller 13, the multiple fifth-section circular plates 9 are shrunk into a circular fifth-section circular plate 9. The internal threaded sleeve 12 rotates to abut against the pinion 10 to prevent its rotation, and the positioning screw 3 is rotated to the drive shaft 1 to fix the circular telescopic component on the drive shaft 1. When the TPU film is cut into sections, the shrunk fifth-section circular plate 9 is located above the TPU film, which can be achieved by adjusting the selective segmentation requirements of the TPU film.

[0039] When it is necessary to adjust the position of the circular telescopic component and the segmented component on drive shaft 1, the operation is as follows:

[0040] Rotate the positioning screw 3 so that it does not contact the drive shaft 1, so that the fixing ring 2 is not restricted by the positioning screw 3 and can slide horizontally around the drive shaft 1. The sliding of the fixing ring 2 on the drive shaft 1 will drive the circular telescopic component and the segmented component to move synchronously. After moving to the desired position, tighten the positioning screw 3 to achieve the advantage of locking after movement.

[0041] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A cutting device for TPU film production, characterized in that: The circular telescopic assembly includes a moving mechanism with a free movement function of a fixed ring (2). The moving mechanism includes a positioning screw (3) and a fixed ring (5). The inner rings of the fixed ring (2) and the fixed ring (5) are rotatably connected to the outer circumference of the drive shaft (1). The fixed ring (2) is threaded with the positioning screw (3) and abuts against the outer circumference of the drive shaft (1). The circular telescopic assembly is provided with a locking mechanism having a locking function of a threaded rod (11). The locking mechanism includes an internal threaded sleeve (12). The threaded rod (11) is threadedly connected to the internal threaded sleeve (12). A throttle (110) is fixedly connected to the end of the threaded rod (11).

2. The TPU film production slitting device according to claim 1, characterized in that: One end of the fixed ring (2) is fixedly connected to a large gear (4), and the back of the large gear (4) is fixedly connected to a fixed ring (5). The back of the fixed ring (5) is fixedly connected to multiple sliding rails (6) in a ring array. The drive shaft (1) is rotatably connected to a positioning screw (3).

3. The TPU film production slitting device according to claim 2, characterized in that: The large gear (4) has multiple arc-shaped through slots (40) arranged in a ring array. Each of the multiple sliding tracks (6) is slidably connected to a slide rail (7). Each of the multiple slide rails (7) has a positioning rod (8) fixed on one side. The multiple positioning rods (8) are inserted into the arc-shaped through slots (40).

4. A TPU film production slitting device according to claim 3, characterized in that: One of the slide rails (6) is fixedly connected to a connecting end (60), and the connecting end (60) is rotatably connected to a threaded rod (11). A small gear (10) is fixedly connected to a section of the threaded rod (11) near the connecting end (60), and the small gear (10) meshes with a large gear (4).

5. A TPU film production slitting device according to claim 4, characterized in that: One end of each of the slide rails (7) is fixedly connected to a fifth-section circular plate (9), and each of the fifth-section circular plates (9) is provided with an arc-shaped slot (90).

6. A TPU film production slitting device according to claim 5, characterized in that: Multiple arc-shaped slots (90) are engaged with a retaining ring (130), and the outer circumferential wall of the retaining ring (130) is fixedly connected to the inner circumferential wall of the pressure roller (13).

7. A TPU film production slitting device according to claim 6, characterized in that: A groove is provided in the middle of the pressing roller (13), and a cutter (14) is fixedly connected in the groove. The cutter (14) has a ring structure and its outer diameter is larger than that of the outer ring of the pressing roller (13). The pressing roller (13) and the cutter (14) are combined into a segmented assembly. Multiple sets of circular telescopic assemblies and segmented assemblies are provided on the drive shaft (1). The two ends of the drive shaft (1) are connecting ends.

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