A hot melt adhesive tape continuous rewinding device

Abstract

The utility model relates to continuous rewinding field discloses a kind of hot melt adhesive tape continuous rewinding devices, including conveying frame, conveying frame side is provided with unwinding frame, the top fixed connection of conveying frame has workstation, the lateral wall of workstation is provided with winding frame, the lateral wall of unwinding frame is provided with support, the lateral wall fixed connection of support has connecting block, the inside fixed connection of connecting block has double-end motor, the output of double-end motor is all fixed connection with first rotating plate, the lateral wall of connecting block is provided with telescopic component;The telescopic component includes sliding slot plate.In the utility model, first rotating plate is rotated by double-end motor output end, first rotating plate rotation drives second rotating plate to rotate, bolt and slider are driven to slide in sliding slot plate in the process of second rotating plate rotation, slider moves support seat and rotating roller, solve the problem that adhesive tape is too tight due to tension fluctuation of traditional rewinding device, significantly improve rewinding quality and equipment stability.

Description

Technical Field

[0001] This utility model relates to the field of continuous rewinding, and in particular to a continuous rewinding device for hot melt adhesive tape. Background Technology

[0002] In the production and processing of hot melt adhesive tape, continuous rewinding is a crucial step in ensuring product quality and production efficiency. Hot melt adhesive tape, characterized by its strong adhesion and good temperature resistance, is widely used in packaging, electronics, construction, and many other fields, and the market's requirements for its quality stability are increasingly stringent. As a vital piece of equipment on the hot melt adhesive tape production line, the performance of the continuous rewinding device directly affects the flatness, tightness, and subsequent reliability of the rewound tape. Therefore, developing efficient and stable continuous rewinding devices for hot melt adhesive tape has become an important industry requirement.

[0003] In existing technologies, continuous rewinding devices for hot melt adhesive tape typically employ a single motor drive, with the rewinding shaft rotating via a conveyor belt or gear transmission mechanism. During the rewinding process, the tape is released from the unwinding shaft, changes direction after passing through guide rollers, and is then wound up by the rewinding shaft. To achieve continuous production, some devices incorporate simple tension detection components, such as spring-type tension sensors, which detect changes in tape tension and allow manual adjustment of the unwinding or rewinding shaft speed to attempt to maintain a certain tension.

[0004] However, in existing technologies, due to the lack of a precise and real-time tension adjustment mechanism, the tension on the tape fluctuates significantly during the rewinding process as the tape diameter on the unwinding shaft gradually decreases and the tape diameter on the rewinding shaft gradually increases. When the tension is too low, the rewound tape is prone to loosening and interlayer misalignment; when the tension is too high, the tape is stretched and deformed, or even breaks, seriously affecting subsequent use. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a continuous rewinding device for hot melt adhesive tape, which aims to improve the problem that inconsistent tension causes the tape to be too tight or too loose during rewinding, affecting subsequent use.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a continuous rewinding device for hot melt adhesive tape, comprising a conveyor frame, an unwinding frame provided on one side of the conveyor frame, a workbench fixedly connected to the top of the conveyor frame, a winding frame provided on the side wall of the workbench, a support provided on the side wall of the unwinding frame, a connecting block fixedly connected to the side wall of the support, a dual-head motor fixedly connected inside the connecting block, a first rotating plate fixedly connected to the output end of each of the dual-head motors, and a telescopic component provided on the side wall of the connecting block; The telescopic assembly includes a slide plate, the side wall of which is fixedly connected to the side wall of the connecting block. A second rotating plate is rotatably connected to the side wall of the first rotating plate. A bolt is fixedly connected inside the second rotating plate. A slider is fixedly connected to one end of the bolt. The outer wall of the slider is slidably connected to the inner wall of the slide plate. A support seat is fixedly connected to the top of the slider. A rotating roller is fixedly connected to the top of the support seat.

[0007] As a further description of the above technical solution: A support frame is fixedly connected to the top of the workbench, a support plate is fixedly connected to the top of the support frame, and a drive assembly is provided on the top of the support plate.

[0008] As a further description of the above technical solution: The drive assembly includes a first motor, the bottom of which is fixedly connected to the top of the support plate, and an output shaft is fixedly connected to the output end of the first motor.

[0009] As a further description of the above technical solution: An eccentric wheel is fixedly connected to one end of the output shaft, and a connecting shaft is rotatably connected to the side wall of the eccentric wheel.

[0010] As a further description of the above technical solution: A cutting blade is fixedly connected to one side of the connecting shaft, and a sliding block is fixedly connected to the other side of the connecting shaft.

[0011] As a further description of the above technical solution: The top of the workbench is fixedly connected to a limiting post, and the other end of the limiting post is fixedly connected to the inner wall of the support frame.

[0012] As a further description of the above technical solution: The outer wall of the sliding block is slidably connected to the outer wall of the limiting post, and the side wall of the cutting blade is slidably connected to the inner wall of the support frame.

[0013] This utility model has the following beneficial effects: 1. In this utility model, the output end of the dual-head motor drives the first rotating plate to rotate, and the rotation of the first rotating plate drives the second rotating plate to rotate together. At the same time, during the rotation of the second rotating plate, the bolt and the slider are driven to slide on the side wall of the slide plate. Then, the slider is subjected to force and drives the top support seat and the rotating roller to move up and down, thereby achieving the effect of adjusting the tension. This solves the problem that the tape is too tight or too loose during rewinding due to inconsistent tension, which affects subsequent use and improves the stability of the hot melt tape continuous rewinding device.

[0014] 2. In this utility model, the output shaft and eccentric wheel are driven to rotate by the output end of the first motor. Due to the design of the eccentric wheel, the connecting shaft will slide inside the support frame. Then, the support frame will be subjected to force, which will drive the sliding block and the cutting blade to move. At the same time, the sliding block will slide on the outer wall of the limiting post to limit the movement, thus achieving a stable cutting effect on the tape. This solves the problems of unstable cutting that cause burrs, skewness, tearing or local adhesion of the tape cut, and improves the product quality of the hot melt tape continuous rewinding device. Attached Figure Description

[0015] Figure 1 This is a perspective view of a continuous rewinding device for hot melt adhesive tape proposed in this utility model; Figure 2 This is a schematic diagram of the conveyor frame sidewall structure of a continuous rewinding device for hot melt adhesive tape proposed in this utility model; Figure 3 This is a schematic diagram of the support sidewall structure of a continuous rewinding device for hot melt adhesive tape proposed in this utility model; Figure 4 This is a schematic diagram of the top structure of the workbench of a continuous rewinding device for hot melt adhesive tape proposed in this utility model; Figure 5 for Figure 4 Enlarged view of point A in the middle.

[0016] Legend: 1. Unwinding frame; 2. Rewinding frame; 3. Conveyor frame; 4. Workbench; 5. Support frame; 6. Connecting block; 7. Dual-head motor; 8. First rotating plate; 9. Slide plate; 10. Second rotating plate; 11. Bolt; 12. Slider; 13. Support base; 14. Rotating roller; 15. First motor; 16. Support plate; 17. Output shaft; 18. Eccentric wheel; 19. Limiting post; 20. Sliding block; 21. Connecting shaft; 22. Cutting knife; 23. Support frame. Detailed Implementation

[0017] 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.

[0018] Reference Figures 1-3This utility model provides an embodiment of a continuous rewinding device for hot melt adhesive tape, including a conveyor frame 3. The conveyor frame 3 is used to support the workbench 4 and connect the unwinding frame 1 and the rewinding frame 2, providing basic support for the conveying of hot melt adhesive tape and ensuring the stability of the tape transmission path. The unwinding frame 1 is provided on one side of the conveyor frame 3, the workbench 4 is fixedly connected to the top of the conveyor frame 3, the rewinding frame 2 is provided on the side wall of the workbench 4, the support 5 is provided on the side wall of the unwinding frame 1, and the connecting block 6 is fixedly connected to the side wall of the support 5. A double-headed motor 7 is fixedly connected inside the connecting block 6. The double-headed motor 7 cooperates with the first rotating plate 8 to provide power, driving the first rotating plates 8 on both sides to rotate synchronously, providing a power source for the movement of the telescopic component. The output ends of the double-headed motor 7 are fixedly connected to the first rotating plate 8. The first rotating plate 8 cooperates with the second rotating plate 10 to rotate, transmitting the rotational power of the double-headed motor 7 to the second rotating plate 10, driving the second rotating plate 10 to rotate. The connecting block 6 is provided with a telescopic component on the side wall. The telescopic assembly includes a slide plate 9, the side wall of which is fixedly connected to the side wall of the connecting block 6. A second rotating plate 10 is rotatably connected to the side wall of the first rotating plate 8. The second rotating plate 10 of the telescopic assembly works in conjunction with the first rotating plate 8 and bolts 11. Under the drive of the first rotating plate 8, the bolts 11 push the slider 12 to slide, thereby achieving the effect of power transmission. Bolts 11 are fixedly connected inside the second rotating plate 10. One end of the bolts 11 is fixedly connected to the slider 12. The outer wall of the slider 12 is slidably connected to the inner wall of the slide plate 9. A support seat 13 is fixedly connected to the top of the slider 12. The support seat 13 is used to connect the slider 12 and the rotating roller 14, supporting the rotating roller 14 and moving with the slider 12, thereby driving the rotating roller 14 to adjust its height. The rotating roller 14 is fixedly connected to the top of the support seat 13.

[0019] Reference Figure 4 and Figure 5A support frame 23 is fixedly connected to the top of the workbench 4, and a support plate 16 is fixedly connected to the top of the support frame 23. A drive assembly is provided on the top of the support plate 16. The drive assembly includes a first motor 15, which works with an output shaft 17 to provide power, driving the output shaft 17 and the eccentric wheel 18 to rotate, thus providing a power source for the movement of the cutting blade 22. The bottom of the first motor 15 is fixedly connected to the top of the support plate 16, and the output end of the first motor 15 is fixedly connected to the output shaft 17. The output shaft 17 is used to connect the first motor 15 and the eccentric wheel 18, transmitting the power of the first motor 15 to the eccentric wheel 18, thus driving the eccentric wheel 18 to rotate. One end of the output shaft 17 is fixedly connected to the eccentric wheel 18, which works with the connecting shaft 2. 1 rotates, and through eccentric motion, it pushes the connecting shaft 21 and the cutting blade 22 to slide up and down, so as to achieve the cutting action of the cutting blade 22. The side wall of the eccentric wheel 18 is rotatably connected to the connecting shaft 21. The cutting blade 22 is fixedly connected to one side of the connecting shaft 21, and the sliding block 20 is fixedly connected to the other side of the connecting shaft 21. The sliding block 20 slides with the limiting post 19 and the connecting shaft 21. When it moves along the outer wall of the limiting post 19, it restricts the movement trajectory of the cutting blade 22 and ensures the vertical movement of the cutting blade 22. The top of the worktable 4 is fixedly connected to the limiting post 19. The other end of the limiting post 19 is fixedly connected to the inner wall of the support frame 23. The outer wall of the sliding block 20 is slidably connected to the outer wall of the limiting post 19, and the side wall of the cutting blade 22 is slidably connected to the inner wall of the support frame 23.

[0020] Working principle: In the tension adjustment stage, when the hot melt adhesive tape is released from the unwinding frame 1 and passes through the rotating roller 14, the dual-head motor 7 starts and drives the first rotating plates 8 on both sides to rotate synchronously. The first rotating plate 8 is connected to the second rotating plate 10, which drives the second rotating plate 10 to make eccentric movements. At this time, the bolt 11 inside the second rotating plate 10 will push the slider 12 to slide back and forth along the inner wall of the slide plate 9. The sliding of the slider 12 directly drives the top support seat 13 and the rotating roller 14 to move up and down. The tension of the tape is adjusted by changing the height of the rotating roller 14. When the tension is too high, the rotating roller 14 moves downward to release part of the tension; when the tension is too low, the rotating roller 14 moves upward to increase the tension, thereby offsetting the tension fluctuations caused by the reduction of the roll diameter of the unwinding frame 1 or the increase of the roll diameter of the winding frame 2 in real time, ensuring that the tape is always in a stable rewinding state. In the tape cutting process, after the rewinding reaches the preset length, the first motor 15 starts and drives the eccentric wheel 18 to rotate through the output shaft 17. Since the center of gravity of the eccentric wheel 18 is off from the center of rotation, during its rotation, it will push the cutting knife 22 to slide up and down along the inner wall of the support frame 23 through the connecting shaft 21. At the same time, the sliding block 20 on the other side of the connecting shaft 21 will slide synchronously along the outer wall of the limiting post 19. The limiting post 19 ensures the vertical movement accuracy of the cutting knife 22 by limiting the movement trajectory of the sliding block 20. The cutting knife 22 quickly cuts the tape downward under the drive of the eccentric wheel 18. After the cutting is completed, it returns to its original position as the eccentric wheel 18 rotates. The whole process achieves stable cutting through the rigid transmission of the mechanical structure, effectively avoiding problems such as rough edges and skewing of the cut, and ensuring the end quality of the tape after rewinding.

Claims

1. A continuous rewinding device for hot melt adhesive tape, comprising a conveyor frame (3), characterized in that: The conveyor frame (3) is provided with an unwinding frame (1) on one side, and a workbench (4) is fixedly connected to the top of the conveyor frame (3). A winding frame (2) is provided on the side wall of the workbench (4). A support (5) is provided on the side wall of the unwinding frame (1). A connecting block (6) is fixedly connected to the side wall of the support (5). A double-headed motor (7) is fixedly connected inside the connecting block (6). A first rotating plate (8) is fixedly connected to the output end of each of the double-headed motors (7). A telescopic component is provided on the side wall of the connecting block (6). The telescopic assembly includes a slide plate (9), the side wall of which is fixedly connected to the side wall of the connecting block (6), the side wall of the first rotating plate (8) is rotatably connected to a second rotating plate (10), the inside of the second rotating plate (10) is fixedly connected to a bolt (11), one end of which is fixedly connected to a slider (12), the outer wall of which is slidably connected to the inner wall of the slide plate (9), the top of which is fixedly connected to a support seat (13), and the top of which is fixedly connected to a rotating roller (14).

2. The continuous rewinding device for hot melt adhesive tape according to claim 1, characterized in that: The workbench (4) is fixedly connected to a support frame (23) at the top, and a support plate (16) is fixedly connected to the top of the support frame (23). A drive assembly is provided on the top of the support plate (16).

3. The continuous rewinding device for hot melt adhesive tape according to claim 2, characterized in that: The drive assembly includes a first motor (15), the bottom of which is fixedly connected to the top of the support plate (16), and the output end of the first motor (15) is fixedly connected to an output shaft (17).

4. The continuous rewinding device for hot melt adhesive tape according to claim 3, characterized in that: One end of the output shaft (17) is fixedly connected to an eccentric wheel (18), and the side wall of the eccentric wheel (18) is rotatably connected to a connecting shaft (21).

5. The continuous rewinding device for hot melt adhesive tape according to claim 4, characterized in that: A cutting blade (22) is fixedly connected to one side of the connecting shaft (21), and a sliding block (20) is fixedly connected to the other side of the connecting shaft (21).

6. The continuous rewinding device for hot melt adhesive tape according to claim 5, characterized in that: The top of the workbench (4) is fixedly connected to a limiting post (19), and the other end of the limiting post (19) is fixedly connected to the inner wall of the support frame (23).

7. A continuous rewinding device for hot melt adhesive tape according to claim 6, characterized in that: The outer wall of the sliding block (20) is slidably connected to the outer wall of the limiting post (19), and the side wall of the cutting blade (22) is slidably connected to the inner wall of the support frame (23).

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