A plastic film winding tension adjusting device
The tension adjustment device, which combines floating and fixed guide rollers, utilizes a tension sensor and a turntable for rotational adjustment. This solves the problem of unstable tension during the winding of plastic film, achieving tight and uniform winding.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU NICE WIN PLASTIC PROD CO LTD
- Filing Date
- 2025-08-29
- Publication Date
- 2026-07-24
AI Technical Summary
Existing technologies make it difficult to adjust tension during the plastic film winding process, resulting in loose winding and uneven winding speed.
The system employs a combination of floating and fixed guide rollers, monitors tension changes using a tension sensor, and adjusts the contact between the tension regulating roller and the film by rotating a turntable to achieve slight release or tightening, ensuring stable tension.
It achieves stable tension during the plastic film winding process, ensuring tight and uniform winding, and avoiding the need to change the winding speed.
Smart Images
Figure CN224547653U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of plastic film winding technology, and in particular to a plastic film winding tension adjustment device. Background Technology
[0002] During the winding process of plastic film, a certain tension needs to be maintained to ensure tightness and the diameter after winding, and to avoid loosening.
[0003] To achieve tension adjustment, the prior art, patent application number 2015208721747, discloses a plastic film winding tension monitoring device. An angle is provided between the tension transmission roller, the lower traction roller, and the winding unwinding roller, allowing the film to generate a certain force value according to the angle between the tension transmission roller, the lower traction roller, and the winding unwinding roller. The film tension is controlled by adjusting the rotational speed of the winding shaft. However, this adjustment method changes the rotational speed of the winding shaft, thus affecting the normal winding speed and hindering the maintenance of uniform winding speed, requiring improvement. Utility Model Content
[0004] The purpose of this invention is to provide a plastic film winding tension adjustment device to fine-tune the tension and ensure tight winding.
[0005] To achieve this objective, the present invention adopts the following technical solution: A plastic film winding tension adjustment device includes: a winding frame, a first guide frame, a second guide frame, a tension sensor, a sensor bracket, a turntable, and a controller. The first guide frame, sensor bracket, second guide frame, and winding frame are arranged in a back-to-foreign sequence with intervals. The first guide frame is provided with a first fixed guide roller and a floating guide roller, with the floating guide roller located above the first fixed guide roller. The tension sensor is mounted on the sensor bracket, and a transmission roller extending outward and parallel to the first fixed guide roller is concentrically arranged in the tension sensor. The second guide frame is provided with a second fixed guide roller parallel to the first fixed guide roller. The plastic film passes sequentially through the first fixed guide roller, the transmission roller, and the second fixed guide roller before being fed into the winding frame. A first motor is provided at the front of the sensor bracket, and the turntable is located at the output end of the first motor and on one side of the plastic film path. Tension adjustment rollers extending above and below the plastic film path are symmetrically arranged on the turntable. The tension sensor is connected to the controller for signal transmission, and the controller is connected to the first motor for rotation control.
[0006] The floating guide roller is provided with bearings at both ends, and the first guide frame is provided with a guide groove corresponding to the bearing. A pressure block is provided in the guide groove above the bearing.
[0007] The first guide frame is provided with a screw sleeve at the top, and a screw pointing to the pressure block is provided in the screw sleeve.
[0008] The positions of the first fixed guide roller and the second fixed guide roller are respectively lower than the positions of the transmission roller.
[0009] The winding frame is equipped with a winding roller and a second motor that drives the winding roller to rotate. The controller is connected to the second motor to control the rotation.
[0010] The controller is a PLC with a built-in touch screen.
[0011] The controller is located on one side of the winding rack.
[0012] The beneficial effects of this utility model are as follows: A plastic film winding tension adjustment device, through the cooperation of a floating guide roller and a first fixed guide roller, provides a certain tension to the plastic film. During the winding process, the tension is monitored by a tension sensor. When the tension changes slightly, the rotation of the turntable changes the contact between the two tension adjustment rollers and the plastic film, thereby slightly releasing or tightening the plastic film to stabilize the tension and improve the tension stability of the winding process. There is no need to change the winding speed, which is conducive to efficient and uniform winding. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 yes Figure 1 A schematic diagram of the structure after the turntable has rotated. Detailed Implementation
[0014] The following is combined Figures 1-2 The technical solution of this utility model will be further illustrated through specific embodiments.
[0015] like Figure 1The plastic film winding tension adjustment device shown is used for tension adjustment during the winding of plastic film 3. It includes: a winding frame 16, a first guide frame 1, a second guide frame 18, a tension sensor 9, a sensor bracket 19, a turntable 13, and a controller 17. The first guide frame 1, the sensor bracket 19, the second guide frame 18, and the winding frame 16 are arranged in a back-to-foreign sequence with intervals. The first guide frame 1 is provided with a first fixed guide roller 2 and a floating guide roller 4. The floating guide roller 4 is located above the first fixed guide roller 2. Bearings 5 are provided at both ends of the floating guide roller 4. The first guide frame 1 is vertically provided with guide grooves 20 corresponding to the bearings 5. A pressure block 6 is provided in the guide groove 20, located above the bearings 5. The pressure block 6 presses down on the bearings 5, applying pressure to the plastic film 3 through the floating guide roller 4 to adjust the tension.
[0016] In this embodiment, a screw sleeve 8 is provided on the top of the first guide frame 1, and a screw 7 pointing to the pressure block 6 is provided in the screw sleeve 8. By rotating the screw 7, axial fine adjustment is made to change the pressure on the pressure block 6, thereby realizing the adjustment of the winding tension of the plastic film 3.
[0017] The tension sensor 9 is mounted on the sensor bracket 19. A transmission roller 10, extending outwards and parallel to the first fixed guide roller 2, is concentrically arranged within the tension sensor 9 to monitor the tension of the plastic film 3 passing through the transmission roller 10. In this embodiment, the tension sensor 9 is connected to the controller 17 for signal transmission. The controller 17 is a PLC with a built-in touchscreen, which can display the tension for easy adjustment.
[0018] A second fixed guide roller 21 parallel to the first fixed guide roller 2 is provided in the second guide frame 18. The position height of the first fixed guide roller 2 and the second fixed guide roller 21 is lower than the position height of the transmission roller 10. The plastic film 3 passes through the first fixed guide roller 2, the transmission roller 10 and the second fixed guide roller 21 in sequence and is then fed into the winding frame 16 for winding.
[0019] The winding frame 16 is equipped with a winding roller 15 and a second motor 14 for driving the winding roller 15 to rotate. The controller 17 is connected to the second motor 14 to control the rotation and realize the winding of the plastic film 3. The controller 17 is located on one side of the winding frame 16 and can be fixed with screws, which makes the structure stable and reduces the floor space occupied.
[0020] A first motor 11 is mounted on the front side of the sensor bracket 19. A turntable 13 is located at the output end of the first motor 11 and on one side of the path of the plastic film 3. Tension adjusting rollers 12 extending above and below the path of the plastic film 3 are symmetrically arranged on the turntable 13. A control unit 17 is connected to the first motor 11 for rotation control. During the winding process, tension is monitored by the tension sensor 9. When the tension changes slightly, the rotation of the turntable 13 alters the contact between the two tension adjusting rollers 12 and the plastic film 3. Figures 1-2 The plastic film 3 is slightly released or tightened to stabilize the tension and improve the tension stability during the winding process. There is no need to change the winding speed, and the winding stability is high.
[0021] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of this utility model. The content of this specification should not be construed as a limitation of this utility model.
Claims
1. A plastic film winding tension adjustment device, used for tension adjustment during plastic film winding, characterized in that, include: The system comprises a winding frame, a first guide frame, a second guide frame, a tension sensor, a sensor bracket, a turntable, and a controller. The first guide frame, sensor bracket, second guide frame, and winding frame are arranged sequentially from back to front, with intervals between them. The first guide frame has a first fixed guide roller and a floating guide roller, with the floating guide roller located above the first fixed guide roller. The tension sensor is mounted on the sensor bracket, and a transmission roller extending outward and parallel to the first fixed guide roller is concentrically arranged within the tension sensor. The second guide frame has a second fixed guide roller parallel to the first fixed guide roller. The plastic film passes sequentially through the first fixed guide roller, the transmission roller, and the second fixed guide roller before being fed into the winding frame. A first motor is mounted on the front side of the sensor bracket, and the turntable is located at the output end of the first motor and on one side of the plastic film's path. Tension adjusting rollers extending above and below the plastic film's path are symmetrically arranged on the turntable. The tension sensor is connected to the controller for signal transmission, and the controller is connected to the first motor for rotation control.
2. The plastic film winding tension adjusting device according to claim 1, characterized in that, The floating guide roller is provided with bearings at both ends, and the first guide frame is provided with a guide groove corresponding to the bearing, and a pressure block is provided in the guide groove above the bearing.
3. The plastic film winding tension adjusting device according to claim 2, characterized in that, The first guide frame is provided with a screw sleeve at the top, and a screw pointing to the pressure block is provided in the screw sleeve.
4. The plastic film winding tension adjusting device according to claim 1, characterized in that, The positions of the first fixed guide roller and the second fixed guide roller are respectively lower than the positions of the drive roller.
5. The plastic film winding tension adjusting device according to claim 1, characterized in that, The winding frame is equipped with a winding drum and a second motor that drives the winding drum to rotate. The controller is connected to the second motor to control the rotation.
6. The plastic film winding tension adjusting device according to claim 1, characterized in that, The controller is a PLC with a built-in touch screen.
7. The plastic film winding tension adjusting device according to claim 1, characterized in that, The controller is located on one side of the winding rack.