A winding tension control device
By combining the lever principle with the adjusting plate and rollers, and using flexible components and spring telescopic rods to adjust the lifting force of the encapsulation film, the problem of tearing of the encapsulation film caused by excessive cylinder adjustment force is solved, achieving smooth tension control and reducing damage to the encapsulation film.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUIZHOU BAOJUN NEW MATERIAL TECH CO LTD
- Filing Date
- 2025-07-16
- Publication Date
- 2026-07-03
AI Technical Summary
In existing technologies, the force applied when adjusting the tension of the encapsulation film using a cylinder is relatively large, which can easily cause the encapsulation film to tear, affecting the winding effect.
The system employs an adjustment plate and rollers combined with the lever principle. The lifting force of the encapsulation film is adjusted through flexible components and spring telescopic rods. The flexible rebound of the encapsulation film is used to eliminate overload force. The movement of the rollers is controlled by damping rods and compression springs to reduce damage to the encapsulation film.
It effectively controls the tension of the encapsulation film, reduces damage to the encapsulation film during the winding process, and improves the winding effect and protection of the encapsulation film.
Smart Images

Figure CN224449718U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of winding technology, specifically a winding tension control device. Background Technology
[0002] Photovoltaic modules are power generation units composed of solar cells combined with materials such as glass and backsheets through encapsulation processes. They can convert light energy into electrical energy. Their core structure includes solar cells, encapsulation films, and transparent covers. They can resist environmental corrosion and ensure power generation efficiency. They are widely used in photovoltaic power plants, distributed power generation and other scenarios, and are key components for the utilization of solar energy.
[0003] Encapsulation films play a role in encapsulating and protecting solar cells in photovoltaic modules. They are formed by bonding solar cells, surface materials, and back materials together through high-temperature lamination to create a sealing and insulating film that prevents air and moisture from penetrating and protects the cells and their circuitry.
[0004] When the encapsulation film is wound up, it is wound onto the winding roller. During winding, a cylinder is usually used to push the positioning roller to move the encapsulation film and adjust the tension. However, when adjusting with the cylinder, the adjustment force may be too large, causing the encapsulation film to tear, thus affecting the winding effect of the encapsulation film.
[0005] Therefore, a winding tension control device is proposed to address the above problems. Utility Model Content
[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.
[0007] The technical solution adopted by this utility model to solve its technical problem is as follows: A winding tension control device of this utility model includes a base, a pair of first upright plates fixedly connected to the end of the base; a winding motor fixedly connected to the side wall of the first upright plate; a winding roller installed at the output end of the winding motor; the winding roller being rotatably connected to the first upright plate; a pair of second upright plates fixedly connected to the surface of the base; a positioning roller rotatably connected to the middle of the second upright plate; a support base fixedly connected to the middle of the base; an adjusting plate rotatably connected to the middle of the support base; and a [missing information - likely a component or element] rotatably connected to the top of the adjusting plate. A fixed base is provided; a flexible component is provided inside the fixed base; a fixed block is fixedly connected to the top of the flexible component; a roller is rotatably connected to the middle of the fixed block; multiple small counterweights and a large counterweight are placed on the surface of the base; by using the adjustment plate and roller to adjust the tension of the encapsulation film, the lifting force can be controlled by lever principle when winding it up. At the same time, when in contact with the encapsulation film, part of the lifting force will be eliminated due to the toughness of the encapsulation film. Thus, during adjustment, the flexible rebound of the encapsulation film will prevent the lifting force from being overloaded, thereby reducing damage to the encapsulation film.
[0008] Preferably, the flexible component includes multiple spring telescopic rods; the spring telescopic rods and the fixed base are fixedly connected; by adding spring telescopic rods, the force on the encapsulation film in a short time can be reduced when the roller and the encapsulation film come into contact, making the force when it is lifted by force smoother, thereby increasing the protection of the encapsulation film.
[0009] Preferably, a damping rod is fixedly connected to the middle of the base; a rotating seat is fixedly connected to the end of the damping rod; the rotating seat and the bottom of the adjusting plate are fixedly connected; by adding the damping rod, the movement resistance of the roller can be increased when it falls, thereby increasing the protection of the roller when it moves.
[0010] Preferably, a positioning rod is fixedly connected to the end of the adjusting plate; the positioning rod is located on the side close to the small counterweight; the positioning rod is in sliding fit with both the small and large counterweights; by adding the positioning rod, the placement speed of the small and large counterweights can be accelerated, and the stability between the small and large counterweights can be increased when the adjusting plate moves, so that the positioning rod can be used for mid-position restraint.
[0011] Preferably, a compression spring is fixedly connected to the top of the base; the end of the compression spring and the adjusting plate are fixedly connected; by adding a compression spring, the adjusting plate can be quickly separated from the sealing film after the small counterweight is removed, thereby reducing the adhesion between the roller and the sealing film.
[0012] Preferably, the base surface is provided with a first placement slot and a second placement slot; the first placement slot and the second placement slot are located on both sides of the positioning rod; by adding the first placement slot and the second placement slot, the placement space for small counterweights and large counterweights can be increased after use, and they can be classified so that the corresponding small counterweights and large counterweights can be found quickly.
[0013] The advantages of this utility model are:
[0014] 1. The winding tension control device of this utility model adjusts the tension of the encapsulation film by using an adjusting plate and rollers. It controls the lifting force during winding by lever principle. At the same time, when in contact with the encapsulation film, the toughness of the encapsulation film also eliminates part of the lifting force. Thus, during adjustment, the flexible rebound of the encapsulation film prevents the lifting force from being overloaded, thereby reducing damage to the encapsulation film.
[0015] 2. The winding tension control device of this utility model can reduce the force on the packaging film in a short time when the roller and the packaging film come into contact by adding a spring telescopic rod, so that the force when the film is lifted by the force is smoother, thereby increasing the protection of the packaging film. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the main body of this utility model;
[0018] Figure 2 This is a schematic diagram of the structure of the take-up roller in this utility model;
[0019] Figure 3 This is a schematic diagram of the structure of the adjusting plate in this utility model;
[0020] Figure 4 This is a schematic diagram of the roller structure in this utility model;
[0021] Figure 5 This is a schematic diagram of the damping rod in this utility model.
[0022] In the diagram: 1. Base; 11. First upright plate; 12. Winding motor; 13. Winding roller; 14. Second upright plate; 15. Positioning roller; 16. Support seat; 17. Adjusting plate; 18. Fixed seat; 19. Flexible component; 101. Fixed block; 102. Roller; 103. Small counterweight; 104. Large counterweight; 2. Spring telescopic rod; 3. Damping rod; 31. Rotating seat; 4. Positioning rod; 5. Compression spring; 6. First placement slot; 61. Second placement slot. Detailed Implementation
[0023] 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 scope of protection of the present utility model.
[0024] Specific implementation examples are given below.
[0025] like Figures 1 to 5As shown in the embodiment of this utility model, a winding tension control device includes a base 1, with a pair of first upright plates 11 fixedly connected to the end of the base 1; a winding motor 12 is fixedly connected to the side wall of the first upright plate 11; a winding roller 13 is installed at the output end of the winding motor 12; the winding roller 13 is rotatably connected to the first upright plate 11; a pair of second upright plates 14 are fixedly connected to the surface of the base 1; a positioning roller 15 is rotatably connected to the middle of the second upright plate 14; a support seat 16 is fixedly connected to the middle of the base 1; an adjusting plate 17 is rotatably connected to the middle of the support seat 16; a fixed seat 18 is rotatably connected to the top of the adjusting plate 17; a flexible component 19 is provided inside the fixed seat 18; a fixed block 101 is fixedly connected to the top of the flexible component 19; a roller 102 is rotatably connected to the middle of the fixed block 101; multiple small counterweights 103 and large counterweights 104 are placed on the surface of the base 1; during operation, when using... When the encapsulation film is wound up using the take-up roller 13 and the positioning roller 15, the small counterweight 103 and the large counterweight 104 of the corresponding weight can be placed at the bottom of the adjusting plate 17 according to the required tension, thereby raising the roller 102 so that the roller 102 and the encapsulation film between the take-up roller 13 and the positioning roller 15 come into contact. After contact, the encapsulation film will be lifted up. When lifted up, the flexible component 19 will adaptively adjust the position of the roller 102 to increase the tension of the encapsulation film. When the encapsulation film, after being contacted and lifted up, reaches the take-up roller 13, the wrinkles on the encapsulation film will be reduced. By using the adjusting plate 17 and the roller 102 to adjust the tension of the encapsulation film, the lifting force can be controlled by lever principle when winding it up. At the same time, when in contact with the encapsulation film, the toughness of the encapsulation film will also eliminate part of the lifting force. Thus, when adjusting, the flexible rebound of the encapsulation film will prevent the lifting force from being overloaded, thereby reducing damage to the encapsulation film.
[0026] like Figures 1 to 4 As shown, the flexible component 19 includes multiple spring telescopic rods 2; the spring telescopic rods 2 and the fixed base 18 are fixedly connected; during operation, when the roller 102 and the encapsulation film are in contact and subjected to double-sided compression, the spring telescopic rods 2 will compress, causing the roller 102 to compress. During compression, the force exerted on the encapsulation film when it is lifted can be reduced, thereby cooperating with the rotation of the adjusting plate 17 to adjust the force exerted on the roller 102 and the encapsulation film when they are in contact; by adding spring telescopic rods 2, the force exerted on the encapsulation film in a short time when the roller 102 and the encapsulation film are in contact can be reduced, making the force exerted when it is lifted more smoothly, thereby increasing the protection of the encapsulation film.
[0027] like Figures 3 to 4As shown, a damping rod 3 is fixedly connected to the middle of the base 1; a rotating seat 31 is fixedly connected to the end of the damping rod 3; the rotating seat 31 and the bottom of the adjusting plate 17 are fixedly connected; during operation, after the small counterweight 103 and the large counterweight 104 on the adjusting plate 17 are removed, one end of the adjusting plate 17 will fall rapidly due to the weight of the roller 102. At this time, the damping rod 3 will increase the resistance during the fall, slowing down the falling speed and thus increasing stability, thereby reducing the impact between the roller 102 and the base 1 after the roller falls; by adding the damping rod 3, the moving resistance of the roller 102 can be increased when it falls, thereby increasing the protection of the roller 102 during movement.
[0028] like Figure 3 As shown, a positioning rod 4 is fixedly connected to the end of the adjusting plate 17; the positioning rod 4 is located on the side near the small counterweight 103; the positioning rod 4 is in sliding fit with both the small counterweight 103 and the large counterweight 104; during operation, when installing the small counterweight 103 and the large counterweight 104, they can be directly sleeved on the surface of the positioning rod 4, so that after placement, they can slide along the positioning rod 4 to reach the adjusting plate 17, thereby increasing guidance during installation and increasing stability during placement; by adding the positioning rod 4, the placement speed of the small counterweight 103 and the large counterweight 104 can be accelerated, and at the same time, the stability between the small counterweight 103 and the large counterweight 104 can be increased when the adjusting plate 17 moves, so that the positioning rod 4 can provide central restraint.
[0029] like Figures 3 to 4 As shown, a compression spring 5 is fixedly connected to the top of the base 1; the end of the compression spring 5 and the adjusting plate 17 are fixedly connected; during operation, after the small counterweight 103 on the adjusting plate 17 is removed, the compression spring 5 will immediately rebound, thereby removing the roller 102 from the surface of the encapsulation film, thus accelerating the restoration of the adjusting plate 17; by adding the compression spring 5, the adjusting plate 17 can be quickly separated from the encapsulation film after the small counterweight 103 is removed, thereby reducing the adhesion between the roller 102 and the encapsulation film.
[0030] like Figure 2 As shown, the base 1 has a first placement groove 6 and a second placement groove 61 on its surface; the first placement groove 6 and the second placement groove 61 are located on both sides of the positioning rod 4; during operation, after the small counterweight 103 and the large counterweight 104 are used, they can be placed into the first placement groove 6 and the second placement groove 61 respectively for differentiation; by increasing the first placement groove 6 and the second placement groove 61, the placement space for the small counterweight 103 and the large counterweight 104 can be increased after use, and they can be classified so that the corresponding small counterweight 103 and large counterweight 104 can be found quickly.
[0031] Working principle: When the take-up roller 13 and positioning roller 15 are used to wind up the encapsulation film, the small counterweight 103 and large counterweight 104 of the corresponding weight can be placed at the bottom of the adjusting plate 17 according to the required tension, thereby raising the roller 102 so that the encapsulation film between the roller 102 and the take-up roller 13 and positioning roller 15 comes into contact. After contact, the encapsulation film will be lifted. During the lifting, the flexible component 19 will adaptively adjust the position of the roller 102, thereby increasing the tension of the encapsulation film. When the encapsulation film, after being lifted, reaches the take-up roller 13, the wrinkles on the encapsulation film will be reduced. When the roller 102 and the encapsulation film are in contact and subjected to double-sided compression, the spring telescopic rod 2 will be compressed, causing the roller 102 to be compressed. During compression, the force when lifting the encapsulation film can be reduced, thereby cooperating with the rotation of the adjusting plate 17 to adjust the force when the roller 102 and the encapsulation film come into contact. After the small counterweight 103 and the large counterweight 104 on the adjusting plate 17 are removed, one end of the adjusting plate 17 will fall rapidly due to the weight of the roller 102. At this time, the damping rod 3 will increase the resistance during the fall, slowing down the falling speed and thus increasing stability, thereby reducing the impact between the roller 102 and the base 1 after falling. When installing the small counterweight 103 and the large counterweight 104, they can be directly sleeved on the surface of the positioning rod 4, so that they can slide along the positioning rod 4 to the adjusting plate 17 after placement. This can increase the guidance during installation and increase the stability during placement. After the small counterweight 103 on the adjusting plate 17 is removed, the compression spring 5 will immediately rebound, thereby removing the roller 102 from the surface of the encapsulation film, thus speeding up the recovery of the adjusting plate 17. After the small counterweight 103 and the large counterweight 104 are used, they can be placed into the first placement slot 6 and the second placement slot 61 respectively for differentiation.
[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A winding tension control device characterized by: Includes a base (1), with a pair of first upright plates (11) fixedly connected to the end of the base (1); a winding motor (12) is fixedly connected to the side wall of the first upright plate (11); a winding roller (13) is installed at the output end of the winding motor (12); the winding roller (13) is rotatably connected to the first upright plate (11); a pair of second upright plates (14) are fixedly connected to the surface of the base (1); a positioning roller (15) is rotatably connected to the middle of the second upright plate (14); and a positioning roller (15) is fixedly connected to the middle of the base (1). There is a support base (16); an adjustment plate (17) is rotatably connected to the middle of the support base (16); a fixed base (18) is rotatably connected to the top of the adjustment plate (17); a flexible component (19) is provided inside the fixed base (18); a fixed block (101) is fixedly connected to the top of the flexible component (19); a roller (102) is rotatably connected to the middle of the fixed block (101); and multiple small counterweights (103) and large counterweights (104) are placed on the surface of the base (1).
2. A take-up tension control device according to claim 1, characterized in that: The flexible component (19) includes multiple spring telescopic rods (2); the spring telescopic rods (2) and the fixed seat (18) are fixedly connected.
3. The winding tension control device according to claim 2, characterized in that: A damping rod (3) is fixedly connected to the middle of the base (1); a rotating seat (31) is fixedly connected to the end of the damping rod (3); the rotating seat (31) and the bottom of the adjusting plate (17) are fixedly connected.
4. A take-up tension control device according to claim 3, wherein: The adjusting plate (17) is fixedly connected to a positioning rod (4) at its end; the positioning rod (4) is located on the side close to the small counterweight (103); the positioning rod (4) is in sliding fit with both the small counterweight (103) and the large counterweight (104).
5. A take-up tension control device according to claim 4, wherein: A compression spring (5) is fixedly connected to the top of the base (1); the end of the compression spring (5) and the adjusting plate (17) are fixedly connected.
6. A take-up tension control device according to claim 5, wherein: The base (1) has a first placement groove (6) and a second placement groove (61) on its surface; the first placement groove (6) and the second placement groove (61) are located on both sides of the positioning rod (4).