Winding machine capable of adjusting tension
By using a motor to drive a threaded rod to move a slider and an adjusting roller, the distance between the adjusting roller and the cylinder is adjusted, which solves the problem that the winding machine cannot adjust the tension. This enables rapid tension adjustment and adapts to the tightness requirements of different materials, thus improving the packaging effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TAICANG HONGHAI PRECISION MACHINERY CO LTD
- Filing Date
- 2025-05-12
- Publication Date
- 2026-05-08
AI Technical Summary
Existing winding machines cannot adjust the winding tension, which makes them unable to adapt to the tightness requirements of different materials, thus limiting their functionality.
The tension is adjustable by using a motor-driven threaded rod to move the slider and adjusting roller, and adjusting the distance between the roller and the cylinder. The isosceles triangle structure is used to enhance the squeezing effect and adjust the tension of the packaging film.
It enables rapid adjustment of the tension of the wrapping machine, adapting to the tightness requirements of different materials and improving the packaging effect.
Smart Images

Figure CN224211393U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of winding machine technology, specifically to an adjustable tension winding machine. Background Technology
[0002] Wrapping machines are widely used for packaging products such as export goods, food and beverages, plastics and chemicals, glass and ceramics, and electromechanical castings. They can prevent damage to goods during handling and also provide dustproof, moisture-proof, and hygienic protection.
[0003] Chinese patent CN219134612U discloses a cylindrical winding machine, including a chassis mechanism, a film frame mechanism, and a lifting mechanism. The chassis mechanism has a rotatable output end. The film frame mechanism is used to dispense film to wrap goods. The lifting mechanism includes a column support and a lifting assembly. The column support is fixedly mounted on the chassis mechanism. The film frame mechanism is slidably connected to the column support. The lifting assembly is disposed within the column support. The lifting assembly has two movable ends, both moving vertically, which are fixedly connected to the left and right ends of the film frame mechanism, respectively. This significantly improves the stability of the movable ends of the lifting assembly during movement, thereby enhancing the stability of the film frame mechanism during movement.
[0004] However, the aforementioned patent requires adjustable winding tension to wrap different materials during use. In this case, the winding tension cannot be adjusted, making it impossible to wrap different materials with varying degrees of tightness, thus limiting its functionality. Utility Model Content
[0005] The purpose of this invention is to provide an adjustable tension winding machine to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, the present invention provides the following technical solution: an adjustable tension winding machine, comprising a packaging film placed on the surface of a rotating drum, the adjustable tension winding machine comprising: a fixed base, the fixed base being connected to a first roller, a second roller and an adjusting roller via a T-slot, the fixed base being connected to a motor via a support plate, the motor being connected to a slider via a transmission belt, the slider being connected to the adjusting roller.
[0007] Preferably, the surface of the rotating drum is covered with a packaging film, and the other end of the packaging film is in sequential contact with a first roller, an adjusting roller, a second roller, and a winding member. The lower end of the winding member is fixedly connected to a turntable.
[0008] Preferably, the upper and lower ends of the support plate are fixedly connected to a fixing seat, the fixing seat is provided with a T-shaped groove, and a motor is fixedly connected to the midpoint of the support plate.
[0009] Preferably, the output end of the motor is connected to a drive belt via a pulley, and both ends of the drive belt are connected to threaded rods via pulleys. The other end of the threaded rod passes through a T-slot and is rotatably connected to the fixed seat.
[0010] Preferably, the surface of the threaded rod is threaded with a slider, the slider is slidably connected to the T-slot, and the lower end of the slider is fixedly connected to an adjusting roller. The adjusting roller, roller one, and roller two form an isosceles triangle, with the adjusting roller located at the apex.
[0011] Preferably, the inner wall of the T-slot is in contact with roller one, roller two and adjusting roller. The upper surfaces of roller one and roller two are rotatably connected to an arc plate. The outer arc surface of the arc plate is fixedly connected to a guide rod and a spring. The other end of the spring is fixedly connected to a fixed seat and the spring is in a compressed state. The other end of the guide rod is slidably connected to the fixed seat and the guide rod is located inside the spring.
[0012] Compared with the prior art, the beneficial effects of this utility model are: the rotation of the motor drives the threaded rod to rotate, at which time the adjusting roller will slide along the T-groove and move closer to or further away from roller one and roller two. At this time, the packaging film increases or decreases in resistance to movement under the pressure of the adjusting roller, thereby achieving rapid adjustment of tension. Attached Figure Description
[0013] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;
[0014] Figure 2 This is a top view of the fixing base of this utility model;
[0015] Figure 3 This is a cross-sectional view of the upper surface of the fixing base of this utility model;
[0016] Figure 4 This is a cross-sectional view of the lower surface of the fixing base of this utility model.
[0017] In the diagram: 1. Rotary drum; 2. Packaging film; 3. Turntable; 4. Wrapping component; 5. Fixed base; 6. Roller 1; 7. Roller 2; 8. Adjusting roller; 9. Motor; 10. Drive belt; 11. Slider; 12. Threaded rod; 13. Arc plate; 14. Guide rod; 15. Spring; 16. Support plate; 17. T-slot. Detailed Implementation
[0018] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0019] Please see Figures 1-4 This utility model provides a technical solution: an adjustable tension winding machine, including a packaging film 2 placed on the surface of a rotating drum 1. The adjustable tension winding machine includes: a fixed base 5. The packaging film 2 is sleeved on the surface of the rotating drum 1. The packaging film 2 can be used to wrap the winding component 4. The other end of the packaging film 2 is in sequential contact with a roller 6, an adjusting roller 8, a roller 7, and the winding component 4. The tension of the whole can be adjusted by the adjusting roller 8. The lower end of the winding component 4 is fixedly connected to a turntable 3, which is installed in the body of the winding machine. At the same time, the rotating drum 1 and the fixed base 5 can be installed in the vertically moving parts of the winding machine to facilitate height adjustment. The upper and lower ends of the support plate 16 are fixedly connected to the fixed base 5. The fixed base 5 has a T-slot 17, which can limit the movement of the component. The midpoint of the support plate 16 is fixedly connected to a motor 9, which adjusts the tension.
[0020] The device is installed in the body of the wrapping machine. During operation, the turntable 3 drives the wrapping piece 4 to rotate, which in turn pulls out the packaging film 2, thereby wrapping the wrapping piece 4. The tension during operation can be adjusted by the drive motor 9.
[0021] The output end of motor 9 is connected to a transmission belt 10 via a pulley. Both ends of the transmission belt 10 are connected to threaded rods 12 via pulleys. When motor 9 starts, the transmission belt 10 drives the two threaded rods 12 to rotate. The other end of the threaded rod 12 passes through a T-slot 17 and is rotatably connected to the fixed seat 5. A slider 11 is threadedly connected to the surface of the threaded rod 12. The slider 11 is slidably connected to the T-slot 17. When the threaded rod 12 rotates, the slider 11 will start to slide under its action. An adjusting roller 8 is fixedly connected to the lower end of the slider 11. When the slider 11 moves, the adjusting roller 8 will also move. The adjusting roller 8, roller 6, and roller 7 form an isosceles triangle. The adjusting roller 8 is located at the apex. When the adjusting roller 8 approaches roller 6 and roller 7, the pressure on the packaging film 2 passing through the middle will gradually increase due to the squeezing of the three. This will increase the tension of the packaging film 2 during the winding process of the wrapping component 4.
[0022] During the operation of the wrapping machine, the rotation of the motor 9 can cause the slider 11 to move the adjusting roller 8, which in turn squeezes the roller 6 and roller 7, thereby increasing the pressure. During this process, the tension of the packaging film 2 will gradually increase.
[0023] The inner wall of the T-slot 17 contacts roller 6, roller 7, and adjusting roller 8. The T-slot 17 limits and guides these three components. The upper surfaces of roller 6 and roller 7 are rotatably connected to an arc plate 13. The outer arc surface of the arc plate 13 is fixedly connected to a guide rod 14 and a spring 15. The guide rod 14 provides guidance for the reset of roller 6 and roller 7. The other end of the spring 15 is fixedly connected to the fixed seat 5. The spring 15 is in a compressed state, so that the adjusting roller 8 can exert a squeezing effect on roller 6 and roller 7 when it moves. The other end of the guide rod 14 is slidably connected to the fixed seat 5. The guide rod 14 is located inside the spring 15.
[0024] When slider 11 moves, adjusting roller 8 will squeeze roller 6 and roller 7. During this process, spring 15 can enhance the squeezing pressure effect. At the same time, when slider 11 moves in the reverse direction, it can reset roller 6 and roller 7, making it easier for the next adjustment.
[0025] In actual use, after verifying that the device is correct, it is installed in the wrapping machine. Then, when tension adjustment is required, the control motor 9 is rotated. At this time, the threaded rod 12 rotates, causing the slider 11 to slide. The slider 11 drives the adjusting roller 8 to move. The tension of the packaging film 2 is adjusted by adjusting the distance between the adjusting roller 8 and the roller 6 and roller 7. The larger the apex angle of the isosceles triangle formed by the adjusting roller 8, roller 6 and roller 7, the greater the tension, and the smaller the apex angle, the smaller the tension. The device as a whole can effectively and quickly adjust the tension of the packaging film 2.
[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An adjustable tension winding machine, comprising a packaging film (2) placed on the surface of a rotating drum (1), characterized in that: The adjustable tension winding machine includes: a fixed base (5), which is connected to a roller one (6), a roller two (7) and an adjusting roller (8) via a T-slot (17), and a motor (9) connected to the fixed base (5) via a support plate (16). The motor (9) is connected to a slider (11) via a transmission belt (10), and the slider (11) is connected to the adjusting roller (8).
2. The adjustable tension winding machine according to claim 1, characterized in that: The surface of the rotating drum (1) is covered with a packaging film (2), and the other end of the packaging film (2) is in sequential contact with roller one (6), adjusting roller (8), roller two (7) and winding member (4), and the lower end of the winding member (4) is fixedly connected to a turntable (3).
3. The adjustable tension winding machine according to claim 2, characterized in that: The upper and lower ends of the support plate (16) are fixedly connected to the fixing seats (5), and the fixing seats (5) are provided with T-slots (17). A motor (9) is fixedly connected to the midpoint of the support plate (16).
4. The adjustable tension winding machine according to claim 3, characterized in that: The output end of the motor (9) is connected to a transmission belt (10) via a pulley. Both ends of the transmission belt (10) are connected to a threaded rod (12) via pulleys. The other end of the threaded rod (12) passes through a T-slot (17) and is rotatably connected to the fixed seat (5).
5. The adjustable tension winding machine according to claim 4, characterized in that: The threaded rod (12) has a slider (11) threadedly connected to its surface. The slider (11) is slidably connected to the T-slot (17). An adjusting roller (8) is fixedly connected to the lower end of the slider (11). The adjusting roller (8), roller one (6), and roller two (7) form an isosceles triangle, with the adjusting roller (8) located at the apex.
6. The adjustable tension winding machine according to claim 5, characterized in that: The inner wall of the T-slot (17) is in contact with roller one (6), roller two (7) and adjusting roller (8). The upper surfaces of roller one (6) and roller two (7) are rotatably connected to an arc plate (13). The outer arc surface of the arc plate (13) is fixedly connected to a guide rod (14) and a spring (15). The other end of the spring (15) is fixedly connected to a fixed seat (5). The spring (15) is in a compressed state. The other end of the guide rod (14) is slidably connected to the fixed seat (5). The guide rod (14) is located inside the spring (15).
Citation Information
Patent Citations
Cylinder winding machine
CN219134612U