Graphite film roll-to-roll transmission tension automatic adjusting device
By designing an automatic tension adjustment device for graphite film roll-to-roll transmission, which utilizes a motor and a bevel gear meshing screw structure to automatically adjust the tension, the problem of loose and scattered graphite film rolls was solved, and tight winding was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 淮安恒炭新材料科技有限公司
- Filing Date
- 2025-07-17
- Publication Date
- 2026-06-23
AI Technical Summary
In the current process of transporting graphite film rolls together, insufficient tension causes the graphite film rolls to loosen and become scattered, affecting the winding effect.
The structure includes a winding table, a fixed frame, a motor, a winding roller, a lead screw, a guide rod, and a tension roller. The double-headed motor drives the bevel gear meshing lead screw to rotate, thereby adjusting the reverse force of the tension roller. Combined with the elastic structure and guiding device, the tension is automatically adjusted and the graphite film roll is prevented from scattering.
This effectively avoids insufficient tension during the roll-to-roll transfer of graphite film, ensuring tight winding and improving the quality and efficiency of graphite film winding.
Smart Images

Figure CN224394217U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of graphite film roll-to-roll transmission technology, specifically relating to an automatic tension adjustment device for graphite film roll-to-roll transmission. Background Technology
[0002] The receiving section of a roll material processing production line mechanically winds raw materials into rolls. It is widely used in paper rolls, cloth rolls, plastic rolls, and metal roll processing production lines. It is designed in various ways according to actual process requirements. Common types include simple winding machines and hydraulic winding machines. Winding machines generally have strict requirements on the inner diameter, outer diameter, thickness, and width of the roll material. In the production of graphene encapsulation films, graphite film roll-to-roll transport is used.
[0003] Currently, in the existing process of transporting graphite film rolls to each other, a motor is usually used to drive the winding roller to rotate and transport the graphite film rolls to each other. However, during the traditional process of transporting graphite film rolls to each other, insufficient tension may cause the graphite film rolls to loosen during transport. If the tension is insufficient, the graphite film rolls may become scattered during winding, thereby reducing the winding effect of the graphite film. Utility Model Content
[0004] The purpose of this invention is to provide an automatic tension adjustment device for graphite film roll to roll transmission. This device aims to solve the problem that in the existing technology, graphite film roll to roll transmission usually requires a motor to drive the winding roller to rotate to achieve the transmission of graphite film rolls to roll. However, during the traditional graphite film roll to roll transmission, insufficient tension may cause the graphite film roll to loosen during transmission. If the tension is insufficient, the graphite film roll may become scattered during winding, thereby reducing the winding effect of the graphite film.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic tension adjustment device for graphite film roll-to-roll transmission, comprising a winding table, a fixed frame fixedly connected to the top of the winding table, a motor installed on one side of the fixed frame, a winding roller connected to the output end of the motor, mounting seats and connecting seats symmetrically distributed on both sides of the winding table, a first mounting frame connected to the top of the mounting seat, and a first lead screw and a second lead screw symmetrically distributed on the inner side of the first mounting frame;
[0006] The top of the connecting seat is connected to a second mounting bracket. A first guide rod and a second guide rod are symmetrically distributed on the inner side of the second mounting bracket. A first connecting block is threaded to the outer wall of the first lead rod, and a second connecting block is threaded to the outer wall of the second lead rod. A first connecting sleeve is sleeved on the outer wall of the first guide rod, and a second connecting sleeve is sleeved on the outer wall of the second guide rod. A first tension roller is rotatably connected between the first connecting block and the first connecting sleeve, and a second tension roller is rotatably connected between the second connecting block and the second connecting sleeve.
[0007] In a preferred embodiment of the graphite film roll-to-roll transmission tension automatic adjustment device of this utility model, one end of the first lead screw and the second lead screw extends through into the interior of the mounting base.
[0008] In a preferred embodiment of the graphite film roll-to-roll transmission tension automatic adjustment device of this utility model, the through end of the first lead screw is connected to a first conical tooth, the through end of the first lead screw is connected to a second conical tooth, a double-headed motor is installed inside the mounting base, the output end of the double-headed motor is connected to a rotating rod, and the end of the rotating rod is connected to a third conical tooth.
[0009] In a preferred embodiment of the graphite film roll-to-roll tension automatic adjustment device of this utility model, two third bevel teeth are provided, and the two third bevel teeth respectively mesh with the first bevel teeth and the second bevel teeth.
[0010] As a preferred embodiment of the graphite film roll-to-roll transmission tension automatic adjustment device of this utility model, the outer wall of the fixed frame is provided with an installation groove, the inside of the installation groove is provided with a spring, one end of the spring is connected to a movable block, the outer wall of the movable block is connected to a connecting plate, the top of the connecting plate is connected to a pressure block, the inner wall of the installation groove is provided with a sliding groove, and the outer wall of the movable block is fixedly connected to a slider.
[0011] In a preferred embodiment of the graphite film roll-to-roll tension automatic adjustment device of this utility model, the pressure block is located directly below the take-up roller, and the top of the pressure block is an arc surface.
[0012] As a preferred embodiment of the graphite film roll-to-roll tension automatic adjustment device of this utility model, the pressure block can form an elastic structure with the fixed frame through the mounting groove, spring, and movable block.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] By passing the graphite film through the top of the first tension roller and the bottom of the second tension roller, and then driving the third bevel teeth at both ends to rotate via a dual-head motor, the meshing relationship between the third bevel teeth and the first and second bevel teeth drives the first lead screw and the second lead screw to rotate. Since the threads of the first and second lead screws are opposite, the first tension roller will lift the graphite film, while the second tension roller will press down on the graphite film. Thus, the tension is automatically adjusted through the opposing forces of the two tension rollers, thereby avoiding insufficient tension when the graphite film roll is transported from roll to roll.
[0015] Through the elastic structure between the pressure block and the fixed frame, when the motor drives the winding roller to rotate and realize the winding of the graphite film roll, the pressure block can squeeze the graphite film wound on the outer wall of the winding roller. Furthermore, the setting of the sliding groove and the slider can improve the guiding role when the moving block moves, thereby further preventing the graphite film roll on the outer wall of the winding roller from becoming scattered. Attached Figure Description
[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0017] Figure 1 This is a schematic diagram of the main structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the structural structure of this utility model from a bottom view.
[0019] Figure 3 This is a schematic diagram of the main cross-sectional structure of the present invention;
[0020] Figure 4 This is an enlarged structural diagram of the present invention (A).
[0021] Figure 5 This is an enlarged structural schematic diagram of the present invention, B.
[0022] In the diagram: 1. Rewinding table; 2. Fixed frame; 3. Motor; 4. Rewinding roller; 5. Mounting base; 6. Connecting base; 7. First mounting frame; 8. First lead screw; 9. Second lead screw; 10. Second mounting frame; 11. First guide rod; 12. Second guide rod; 13. First connecting block; 14. Second connecting block; 15. First connecting sleeve; 16. Second connecting sleeve; 17. First tension roller; 18. Second tension roller; 19. First bevel gear; 20. Second bevel gear; 21. Dual-head motor; 22. Rotating rod; 23. Third bevel gear; 24. Mounting groove; 25. Spring; 26. Movable block; 27. Connecting plate; 28. Pressure block; 29. Slide groove; 30. Slider. 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 protection scope of the present utility model.
[0024] Please see Figures 1-5 The present invention provides the following technical solution: an automatic tension adjustment device for the transmission of graphite film roll to roll, including a winding table 1, a fixed frame 2 fixedly connected to the top of the winding table 1, a motor 3 installed on one side of the fixed frame 2, a winding roller 4 connected to the output end of the motor 3, mounting seats 5 and connecting seats 6 symmetrically distributed on both sides of the winding table 1, a first mounting frame 7 connected to the top of the mounting seat 5, and a first lead screw 8 and a second lead screw 9 symmetrically distributed on the inner side of the first mounting frame 7;
[0025] A second mounting bracket 10 is connected to the top of the connecting seat 6. A first guide rod 11 and a second guide rod 12 are symmetrically distributed on the inner side of the second mounting bracket 10. A first connecting block 13 is threaded to the outer wall of the first lead screw 8. A second connecting block 14 is threaded to the outer wall of the second lead screw 9. A first connecting sleeve 15 is sleeved on the outer wall of the first guide rod 11. A second connecting sleeve 16 is sleeved on the outer wall of the second guide rod 12. A first tension roller 17 is rotatably connected between the first connecting block 13 and the first connecting sleeve 15. A second tension roller 18 is rotatably connected between the second connecting block 14 and the second connecting sleeve 16.
[0026] Preferably, one end of the first lead screw 8 and the second lead screw 9 extends through into the interior of the mounting base 5. The through end of the first lead screw 8 is connected to a first bevel tooth 19 and a second bevel tooth 20. A dual-head motor 21 is installed inside the mounting base 5. The output end of the dual-head motor 21 is connected to a rotating rod 22. The end of the rotating rod 22 is connected to a third bevel tooth 23. There are two third bevel teeth 23, and the two third bevel teeth 23 mesh with the first bevel tooth 19 and the second bevel tooth 20, respectively.
[0027] In practical use, the graphite film passes through the top of the first tension roller 17 and the bottom of the second tension roller 18. Then, the third bevel teeth 23 at both ends are rotated by the double-head motor 21. The meshing relationship between the third bevel teeth 23 and the first bevel teeth 19 and the second bevel teeth 20 drives the first lead screw 8 and the second lead screw 9 to rotate. Since the threads of the first lead screw 8 and the second lead screw 9 are opposite, the first tension roller 17 will lift the graphite film, while the second tension roller 18 will press down on the graphite film. Thus, the tension is automatically adjusted by the opposing forces of the two tension rollers, thereby avoiding insufficient tension when the graphite film roll is transported from roll to roll.
[0028] It should be noted that the threads between the first lead screw 8 and the second lead screw 9 are opposite. When the first connecting block 13 and the second connecting block 14 drive the first tension roller 17 and the second tension roller 18 to move, the first connecting sleeve 15 and the second connecting sleeve 16 at the other end of the first tension roller 17 and the second tension roller 18 will move along the outer wall of the first guide rod 11 and the second guide rod 12, thereby playing the role of end guidance. The two ends of the first lead screw 8 and the second lead screw 9 form a rotating connection structure with the first mounting frame 7 and the mounting base 5 respectively through bearings.
[0029] Preferably, the outer wall of the fixed frame 2 is provided with an installation groove 24, the inside of the installation groove 24 is provided with a spring 25, one end of the spring 25 is connected to a movable block 26, the outer wall of the movable block 26 is connected to a connecting plate 27, the top of the connecting plate 27 is connected to a pressure block 28, the inner wall of the installation groove 24 is provided with a sliding groove 29, the outer wall of the movable block 26 is fixedly connected to a slider 30, the pressure block 28 is located directly below the winding roller 4, and the top of the pressure block 28 is an arc surface. The pressure block 28 can form an elastic structure with the fixed frame 2 through the installation groove 24, the spring 25, and the movable block 26.
[0030] In practical use, through the elastic structure between the pressure block 28 and the fixed frame 2, when the motor 3 drives the winding roller 4 to rotate to achieve the winding of the graphite film rolls, the pressure block 28 can squeeze the graphite film wound on the outer wall of the winding roller 4. Furthermore, through the setting of the sliding groove 29 and the slider 30, the movable block 26 can play a guiding role when it moves, thereby further preventing the graphite film rolls on the outer wall of the winding roller 4 from becoming scattered.
[0031] Working principle: First, the graphite film passes through the top of the first tension roller 17 and the bottom of the second tension roller 18. Then, the dual-head motor 21 drives the third bevel teeth 23 at both ends to rotate. The meshing relationship between the third bevel teeth 23 and the first bevel teeth 19 and the second bevel teeth 20 drives the first lead screw 8 and the second lead screw 9 to rotate. Since the threads of the first lead screw 8 and the second lead screw 9 are opposite, the first tension roller 17 will lift the graphite film, while the second tension roller 18 will press down on the graphite film. Thus, the tension is automatically adjusted through the opposing forces of the two tension rollers, thereby avoiding insufficient tension when the graphite film roll is rolled up. Furthermore, through the elastic structure between the pressure block 28 and the fixed frame 2, when the motor 3 drives the winding roller 4 to rotate to achieve the winding of the graphite film roll, the pressure block 28 can squeeze the graphite film wound on the outer wall of the winding roller 4. In addition, the setting of the slide groove 29 and the slider 30 can improve the guiding role of the movable block 26 when it moves, thereby further preventing the graphite film roll on the outer wall of the winding roller 4 from being scattered.
[0032] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model 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 this utility model should be included within the protection scope of this utility model.
Claims
1. A kind of automatic regulating device of graphite film roll-to-roll transmission tension, including winding table (1), it is characterized in that: A fixed frame (2) is fixedly connected to the top of the winding table (1). A motor (3) is installed on one side of the fixed frame (2). A winding roller (4) is connected to the output end of the motor (3). Mounting seats (5) and connecting seats (6) are symmetrically distributed on both sides of the winding table (1). A first mounting frame (7) is connected to the top of the mounting seat (5). A first lead screw (8) and a second lead screw (9) are symmetrically distributed on the inner side of the first mounting frame (7). The top of the connecting seat (6) is connected to a second mounting bracket (10). The inner side of the second mounting bracket (10) is symmetrically distributed with a first guide rod (11) and a second guide rod (12). The outer wall of the first lead screw (8) is threaded with a first connecting block (13). The outer wall of the second lead screw (9) is threaded with a second connecting block (14). The outer wall of the first guide rod (11) is sleeved with a first connecting sleeve (15). The outer wall of the second guide rod (12) is sleeved with a second connecting sleeve (16). The first connecting block (13) and the first connecting sleeve (15) are rotatably connected with a first tension roller (17). The second connecting block (14) and the second connecting sleeve (16) are rotatably connected with a second tension roller (18).
2. The automatic tension regulating device for roll-to-roll transport of graphite films according to claim 1, characterized in that: One end of the first lead screw (8) and the second lead screw (9) extends through into the interior of the mounting base (5).
3. The automatic tension regulating device for roll-to-roll transport of graphite film according to claim 1, characterized in that: The first lead screw (8) has a first bevel tooth (19) connected to its through end, and a second bevel tooth (20) connected to its through end. A double-headed motor (21) is installed inside the mounting base (5). A rotating rod (22) is connected to the output end of the double-headed motor (21), and a third bevel tooth (23) is connected to the end of the rotating rod (22).
4. The automatic tension regulating device for roll-to-roll transport of graphite films according to claim 3, characterized in that: There are two third bevel teeth (23), and the two third bevel teeth (23) mesh with the first bevel tooth (19) and the second bevel tooth (20) respectively.
5. The automatic tension regulating device for roll-to-roll transport of graphite films according to claim 1, characterized in that: The outer wall of the fixed frame (2) is provided with an installation groove (24), and a spring (25) is provided inside the installation groove (24). One end of the spring (25) is connected to a movable block (26). The outer wall of the movable block (26) is connected to a connecting plate (27), and the top of the connecting plate (27) is connected to a pressure block (28). The inner wall of the installation groove (24) is provided with a sliding groove (29), and a slider (30) is fixedly connected to the outer wall of the movable block (26).
6. The automatic tension regulating device for roll-to-roll transport of graphite films according to claim 5, characterized in that: The pressure block (28) is located directly below the take-up roller (4), and the top of the pressure block (28) is an arc surface.
7. The automatic tension regulating device for roll-to-roll transport of graphite films according to claim 5, characterized in that: The pressure block (28) can form an elastic structure with the fixed frame (2) through the mounting groove (24), spring (25), and movable block (26).