A PET adhesive tape production fixed-point cutting device
By designing the support frame structure and belt pulley transmission system, the problems of point cutting accuracy and stability of the PET tape cutting device were solved, achieving efficient and precise tape cutting and improving product quality.
Patent Information
- Application Number
- CN202521209909.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-13
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-06-13
AI Technical Summary
Existing PET tape cutting devices have significant technical bottlenecks in terms of point cutting accuracy, automation level and stability, resulting in burrs and delamination on the tape edges, which affects the yield of subsequent bonding processes.
The system employs a support frame structure, and uses a belt pulley and roller drive system to drive the lower and upper cutter discs to perform fixed-point cutting of the tape. Combined with electric push rods and spring adjustment, it ensures cutting accuracy and stability.
It improves the cutting precision and automation of PET tape, reduces burrs on tape edges, and enhances cutting efficiency and product quality.
Smart Images

Figure CN224675009U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of PET tape, specifically a PET tape production point cutting device. Background Technology
[0002] PET tape is an essential material in electronics manufacturing, industrial packaging, and medical protective equipment. The precision of its slitting and cutting during production directly impacts product quality and the reliability of downstream applications. In recent years, the rapid development of industries such as high-precision electronic components and new energy batteries has placed higher demands on the dimensional consistency, edge smoothness, and cutting efficiency of PET tape. However, existing PET tape cutting equipment still faces significant technical bottlenecks in terms of point-to-point cutting precision, automation, and stability, which urgently need to be overcome.
[0003] When a rotary cutter is cutting, the contact time between the blade and the tape is short, which cannot take into account the smoothness of the tape conveying process. It is also easy for the tape edge to become burr or delaminated due to blade wear or uneven pressure, which will affect the yield of subsequent bonding processes. Utility Model Content
[0004] The purpose of this invention is to provide a PET tape production point cutting device to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A PET tape production point cutting device includes a support frame. A front fixing strip is rotatably connected to both the front and rear ends of the support frame. A first inclined block is fixedly connected to the upper surface of the front fixing strip. A lower cutting disc is fixedly connected to the outer wall of the first inclined block. A second pulley and a first pulley are respectively installed on the left and right sides of the lower left wall of the support frame. A fourth pulley is disposed between the first and second pulleys. A lower roller is fixedly connected to the shaft of the fourth pulley. A third pulley is installed on the upper left wall of the support frame. An upper roller is fixedly connected to the shaft of the third pulley. A sliding sleeve is fitted onto the outer wall of the upper roller. An upper cutting disc is fixedly connected to the outer wall of the sliding sleeve. A flexible sleeve is fixedly connected to one side of the upper cutting disc. A spring is fitted onto the flexible sleeve. A second inclined block is slidably connected to the outer wall of the sliding sleeve.
[0007] As a further embodiment of this utility model: the outer walls of pulley two, pulley one, pulley four and pulley three are connected by belts for transmission.
[0008] As a further improvement of this utility model: an adjusting rod is installed at the top center of the support frame, and an electric push rod is installed at the top of the adjusting rod.
[0009] As a further embodiment of this utility model: a pulley five is fixedly connected to the end of the lower roller away from the pulley two, and the pulley five is connected to the pulley installed at one end of the upper roller through a transmission belt.
[0010] As a further embodiment of this utility model: a second bearing is fixedly connected to the bottom of the adjusting rod, and an upper roller is provided on the axis of the second bearing, and the upper roller is rotatably connected to the second bearing.
[0011] As a further embodiment of this utility model: an upper cover is hinged to the upper part of the inner frame of the support frame, a bearing is installed on the upper part of the front end of the inner frame of the support frame, a rotating shaft is installed on the central part of the bearing, a rotating roller is fixedly connected to the outer wall of the rotating shaft, and a side cover is installed on the right wall of the support frame.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] In this invention, the tape is mounted on a rotating roller and driven by a motor installed at one end of a bearing. The braking shaft and the rotating roller wind the material, and the tape passes between the upper and lower rollers. At the same time, a lower cutter disc mounted on one side of the inclined block cuts the material. A sliding sleeve mounted on the outer wall of the upper roller is used to fix the upper cutter disc, and a soft sleeve connected to one side of the upper cutter disc is fastened to the outer wall of the upper roller by a spring. Loosening the spring makes it easy to remove the sliding sleeve from the outer wall of the upper roller. The upper cutter disc is used to cut the tape, and its structure is more optimized and its design is more reasonable. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of a PET tape production point cutting device.
[0015] Figure 2 This is a cross-sectional view of a PET tape production point cutting device.
[0016] Figure 3 This is a front view of a PET tape production point cutting device.
[0017] Figure 4 For a PET tape production point cutting device Figure 1 Enlarged view of point A.
[0018] In the diagram: 1. Support frame; 2. Upper cover; 3. Side cover; 4. Rotating roller; 5. Rotating shaft; 6. Bearing 1; 7. Front fixing strip; 8. Inclined block 1; 9. Lower roller; 10. Lower cutter head; 11. Upper cutter head; 12. Soft sleeve; 13. Spring; 14. Sliding sleeve; 15. Inclined block 2; 16. Upper roller; 17. Adjusting rod; 18. Bearing 2; 19. Belt; 20. Belt 2; 21. Belt 3; 22. Belt 4; 23. Belt 5; 24. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0020] Please see Figures 1-4 In this embodiment of the present invention, a PET tape production point cutting device includes a support frame 1. A front fixing strip 7 is rotatably connected to both the front and rear ends of the support frame 1. A first inclined block 8 is fixedly connected to the upper surface of the front fixing strip 7. A lower cutter disc 10 is fixedly connected to the outer wall of the first inclined block 8. A second pulley 21 and a first pulley 19 are respectively installed on the left and right sides of the lower left wall of the support frame 1. A fourth pulley 23 is provided between the first pulley 19 and the second pulley 21. A lower roller 9 is fixedly connected to the shaft of the fourth pulley 23. A third pulley 22 is installed on the upper left wall of the support frame 1. An upper roller 16 is fixedly connected to the shaft of the third pulley 22. A sliding sleeve 14 is sleeved on the outer wall of the upper roller 16. An upper cutter disc 11 is fixedly connected to the outer wall of the sliding sleeve 14. A soft sleeve 12 is fixedly connected to one side of the upper cutter disc 11. A spring 13 is sleeved on the soft sleeve 12. A second inclined block 15 is slidably connected to the outer wall of the sliding sleeve 14.
[0021] The outer walls of pulley 21, pulley 19, pulley 423 and pulley 32 are connected by belts 20.
[0022] An adjusting rod 17 is installed at the top center of the support frame 1, and an electric push rod is installed at the top of the adjusting rod 17.
[0023] The lower roller 9 is fixedly connected to a pulley 24 at the end away from the pulley 21. The pulley 24 is connected to the pulley installed at one end of the upper roller 16 via a transmission belt.
[0024] The bottom of the adjusting rod 17 is fixedly connected to a bearing 18, and an upper roller 16 is set on the shaft of the bearing 18. The upper roller 16 is rotatably connected to the bearing 18.
[0025] The upper part of the inner frame of the support frame 1 is hinged to the upper cover 2. The upper part of the front end of the inner frame of the support frame 1 is equipped with a bearing 6. The shaft 5 is installed at the center of the bearing 6. The outer wall of the shaft 5 is fixedly connected to a roller 4. The right wall of the support frame 1 is equipped with a side cover 3.
[0026] The working principle of this utility model is as follows:
[0027] In use, the motor connected to one end of the control pulley 5 24 is operated to drive the pulley 5 24 to rotate. When the pulley 5 24 rotates, it will drive the lower roller 9 to rotate. The pulley 4 23 connected to one end of the lower roller 9 will drive the pulley 21, pulley 19 and pulley 3 22 to rotate. The pulley 21, pulley 19 and pulley 3 22 are connected by belt 20.
[0028] When pulley 21 and pulley 19 rotate, they will cause the front fixing bar 7 connected to the front end of the support frame 1 to flip to the side, and cause the inclined block 18 connected to the front fixing bar 7 to move towards or away from the inclined block 2 15.
[0029] The tape is on the rotating roller 4, and a motor is installed at one end of the bearing 6 to operate it. The brake shaft 5 and the rotating roller 4 wind the material. The tape passes between the upper roller 16 and the lower roller 9. At the same time, the lower cutter 10 installed on one side of the inclined block 8 cuts the material. The sliding sleeve 14 installed on the outer wall of the upper roller 16 is used to fix the upper cutter 11. The soft sleeve 12 connected to one side of the upper cutter 11 is fastened to the outer wall of the upper roller 16 by the spring 13. Loosening the spring 13 makes it easy to remove the sliding sleeve 14 from the outer wall of the upper roller 16. The upper cutter 11 is used to cut the tape.
[0030] The inclined block 15, which is slidably mounted on the outer wall of the sliding sleeve 14, cooperates with the inclined block 8 to transport the passing conveyor belt.
[0031] When the inclined block 8 moves toward the inclined block 15, it will make close contact with the tape it passes through.
[0032] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A PET tape production point cutting device, comprising a support frame (1), characterized in that: The front and rear ends of the support frame (1) are rotatably connected to a front fixing strip (7). An inclined block (8) is fixedly connected to the upper surface of the front fixing strip (7). A lower cutter disc (10) is fixedly connected to the outer wall of the inclined block (8). A pulley two (21) and a pulley one (19) are respectively installed on the left and right sides of the lower left wall of the support frame (1). A pulley four (23) is provided between the pulley one (19) and the pulley two (21). The shaft of the pulley four (23) is fixedly connected to a... The lower roller (9) has a pulley three (22) installed on the upper left wall of the support frame (1). The shaft of the pulley three (22) is fixedly connected to the upper roller (16). The outer wall of the upper roller (16) is fitted with a sliding sleeve (14). The outer wall of the sliding sleeve (14) is fixedly connected to the upper cutter disc (11). The side of the upper cutter disc (11) is fixedly connected to a soft sleeve (12). The soft sleeve (12) is fitted with a spring (13). The outer wall of the sliding sleeve (14) is slidably connected to a slanted block two (15).
2. The PET tape production point cutting device according to claim 1, characterized in that: The outer walls of the pulleys 2 (21), 1 (19), 4 (23) and 3 (22) are connected by belts (20).
3. The PET tape production point cutting device according to claim 1, characterized in that: An adjusting rod (17) is installed at the top center of the support frame (1), and an electric push rod is installed at the top of the adjusting rod (17).
4. The PET tape production point cutting device according to claim 1, characterized in that: The lower roller (9) is fixedly connected to a pulley five (24) at the end away from the pulley two (21), and the pulley five (24) is connected to the pulley installed at one end of the upper roller (16) by a transmission belt.
5. A PET tape production point cutting device according to claim 3, characterized in that: The bottom of the adjusting rod (17) is fixedly connected to a bearing two (18), and an upper roller (16) is provided on the axis of the bearing two (18). The upper roller (16) is rotatably connected to the bearing two (18).
6. The PET tape production point cutting device according to claim 1, characterized in that: The upper part of the inner frame of the support frame (1) is hinged with an upper cover (2), the upper part of the front end of the inner frame of the support frame (1) is equipped with a bearing (6), the shaft (5) is installed at the center of the bearing (6), the outer wall of the shaft (5) is fixedly connected with a roller (4), and the right wall of the support frame (1) is equipped with a side cover (3).