Graphene heat-conducting film calendering tool

Abstract

The utility model discloses a calendering tool for a graphene heat-conducting film, and relates to the technical field of heat-conducting films. An upper calendering roller and two lower calendering rollers are arranged on the inner side of the supporting frame, the two lower calendering rollers are symmetrically arranged in the front-back direction and located below the upper calendering roller, an upper cleaning mechanism is arranged on the front side of the upper calendering roller, a lower cleaning mechanism is arranged below the lower calendering rollers, and the graphene heat conduction film is located between the upper calendering roller and the lower calendering rollers. The two-side calendering operation of the graphene heat conduction film can be achieved through cooperation of one upper calendering roller and two lower calendering rollers, the efficiency of single-time calendering between the traditional upper calendering roller and the traditional lower calendering roller and the product quality are greatly improved, the position of the upper calendering roller is adjusted through a movable lead screw, flexible adjustment can be achieved according to production requirements, and the production efficiency is improved. The calendering requirements of graphene heat-conducting films with different thicknesses are met; and the upper cleaning mechanism and the lower cleaning mechanism are matched to clean the surfaces of the upper calendering roller and the lower calendering roller, so that the defect rate rise caused by roller surface pollution is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of heat-conducting films, in particular to a rolling tool for graphene heat-conducting films. Background Technique

[0002] Graphene heat-conducting film is a new type of heat dissipation material with graphene as the main material, which is mainly applied to mid- to high-end smart phones, tablet computers and other consumer electronic products, and gradually expands to other heat management fields.

[0003] Graphene heat-conducting film has high thermal conductivity, which mainly comes from the strong binding force between carbon atoms, highly ordered arrangement and combination, and large crystal size of lattice arrangement. Its micro-structure is a highly oriented heat-conducting film stacked by single-layer graphene, also known as graphene heat dissipation film. In addition to being applied in mid- to high-end smart phones and tablet computers, it is also applied in small scale to notebook computers, smart wearable devices, ICT devices, aerospace, medical devices and other fields, and shows the potential to expand to heat management fields such as semiconductor packaging and new energy vehicles.

[0004] However, traditional rolling machines face some challenges when processing graphene heat-conducting films, such as difficult to accurately adjust the distance between rolling rollers, and impurities are easily stained on the surface of rolling rollers, which affects the quality of film materials. Therefore, the application scheme proposes a rolling tool for graphene heat-conducting films to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a rolling tool for graphene heat-conducting films, which solves the technical problems raised in the background technique.

[0006] To achieve the above object, the utility model provides the following technical solution: A rolling tooling for graphene heat-conducting film, including a workbench, a support frame is fixedly connected to the upper end of the workbench, a moving plate is arranged inside the support frame, the front and rear ends of the moving plate are respectively slidably connected to the front and rear inner walls of the support frame through limit sliding grooves, an adjusting screw rod is arranged above the support frame, the lower end of the adjusting screw rod penetrates through the upper side wall of the support frame and is rotatably connected to the upper end of the moving plate, the adjusting screw rod is threadedly connected to the upper side wall of the support frame, a moving frame is arranged below the moving plate, an upper rolling roller is arranged inside the moving frame, the left and right ends of the upper rolling roller are respectively rotatably connected to the left and right inner walls of the moving frame, two lower rolling rollers are arranged inside the support frame, the two lower rolling rollers are symmetrically arranged in the front and rear direction and are located below the upper rolling roller, the left and right ends of the lower rolling roller are respectively rotatably connected to the left and right inner walls of the support frame, a driving motor is arranged on the right side of the support frame, the output end of the driving motor penetrates through the right side wall of the support frame and is fixedly connected to the right end of one of the lower rolling rollers, the two lower rolling rollers are connected by a belt drive, an upper cleaning mechanism is arranged at the front end of the moving frame, and a lower cleaning mechanism is arranged inside the support frame, and the lower cleaning mechanism is located below the two lower rolling rollers.

[0007] Preferably, the upper cleaning mechanism includes an upper storage frame, one side of the upper storage frame close to the upper rolling roller is open, the upper storage frame is fixed on the front side wall of the moving frame, an upper abutting scraping plate is arranged inside the upper storage frame, the left and right ends of the upper abutting scraping plate are respectively rotatably connected to the left and right inner walls of the upper storage frame, abutting plates are fixedly connected to the left and right inner walls of the upper storage frame, a first abutting spring is arranged between the abutting plate and the upper abutting scraping plate, and the two ends of the first abutting spring are respectively fixedly connected to the adjacent side walls of the abutting plate and the upper abutting scraping plate.

[0008] Preferably, the rear end of the upper abutting scraping plate abuts against the outer wall of the upper rolling roller, and the front end of the upper abutting scraping plate does not contact the front side wall of the upper storage frame.

[0009] Preferably, the lower cleaning mechanism includes a lower storage frame, auxiliary plates are fixedly connected to the front and rear inner walls of the lower storage frame, a sliding plate is arranged inside the lower storage frame, a second sliding rod is fixedly connected to the lower end of the auxiliary plate, the lower end of the second sliding rod penetrates through the sliding plate and is fixedly connected to the lower side wall of the lower storage frame, the second sliding rod is slidably connected to the sliding plate, a second abutting spring is sleeved on the second sliding rod, the upper end of the second abutting spring is fixedly connected to the lower end of the sliding plate, the lower end of the second abutting spring is fixedly connected to the lower side wall of the lower storage frame, a connecting frame is fixedly connected to the upper end of the sliding plate, and a lower abutting scraping plate is fixedly connected to the upper end of the connecting frame.

[0010] Preferably, the rear end of the lower abutting scraper is inclined downward. The rear end of the lower abutting scraper abuts against the outer wall of the rear lower calender roll, and the front end of the lower abutting scraper abuts against the outer wall of the front lower calender roll. A blanking hole is formed in the lower abutting scraper, and a baffle is fixedly connected to the upper end of the lower abutting scraper. The baffle is located at the rear side of the blanking hole.

[0011] Preferably, sliding rods I are symmetrically and fixedly connected to the left and right sides of the upper end of the moving frame. The upper ends of the sliding rods I penetrate through the moving plate and are fixedly connected to a baffle. The sliding rods I are slidably connected to the moving plate. Buffer springs are sleeved on the sliding rods I, and the upper and lower ends of the buffer springs are fixedly connected to the adjacent side walls of the moving frame and the moving plate.

[0012] Compared with the related art, a calendering tool for graphene thermal conductive film provided by the present utility model has the following beneficial effects:

[0013] 1. The present utility model provides a calendering tool for graphene thermal conductive film. In this device, an upper calender roll and two lower calender rolls are provided. During use, the upper calender roll and the lower calender rolls cooperate to perform calendering operations on the graphene thermal conductive film. Moreover, the cooperation of one upper calender roll and two lower calender rolls can realize the two-side calendering operation on the graphene thermal conductive film, greatly improving the efficiency of single calendering between the traditional upper and lower calender rolls and the quality of the product. And under the action of the adjusting screw rod, the moving plate, the moving frame and the upper calender roll can be driven to move in the up and down direction, and the distance between the upper calender roll and the two lower calender rolls can be adjusted, so as to be flexibly adjusted according to production requirements and meet the calendering requirements of graphene thermal conductive films with different thicknesses.

[0014] 2. The present utility model provides a calendering tool for graphene thermal conductive film. In this device, an upper cleaning mechanism is provided on the upper calender roll, and a lower cleaning mechanism is provided below the lower calender roll. Under the action of the abutting spring I, it is ensured that the rear end of the upper abutting scraper always abuts against the side wall of the upper calender roll. At the same time, under the action of the abutting spring II, the front and rear ends of the lower abutting scraper are pushed to abut against the outer walls of the two lower calender rolls respectively. The upper cleaning mechanism and the lower cleaning mechanism cooperate to realize the cleaning operation of the surfaces of the upper calender roll and the lower calender rolls, avoiding the increase in the defective rate caused by roll surface contamination, and further ensuring the quality of the product and the stability of production. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0016] Figure 2 is of the present utility model Figure 1 enlarged view of part A;

[0017] Figure 3 is a schematic diagram of the three-dimensional structure of another angle of the present utility model;

[0018] Figure 4 This is a schematic perspective sectional view of the upper cleaning mechanism of the present utility model;

[0019] Figure 5 This is a schematic perspective sectional view of the lower cleaning mechanism of the present utility model;

[0020] Figure 6 This is a schematic perspective view of the lower abutting scraper of the present utility model;

[0021] Figure 7 This is a schematic sectional view of the present utility model;

[0022] Figure 8 This is of the present utility model Figure 7 Enlarged view at B in the middle.

[0023] In the figure: 1, workbench; 2, support frame; 3, moving plate; 4, adjusting screw rod; 5, moving frame; 6, upper cleaning mechanism; 7, upper calendering roller; 8, lower calendering roller; 9, driving motor; 10, lower cleaning mechanism; 11, graphene heat-conducting film; 12, baffle; 13, first sliding rod; 14, buffer spring; 15, upper storage frame; 16, abutting plate; 17, upper abutting scraper; 18, first abutting spring; 19, blanking hole; 20, lower storage frame; 21, auxiliary plate; 22, second sliding rod; 23, sliding plate; 24, second abutting spring; 25, connecting frame; 26, lower abutting scraper; 27, material baffle. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments; based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] Embodiment:

[0026] Please refer to Figures 1-8, the present utility model provides a technical solution: a calendering tooling for graphene thermal conductive film, including a workbench 1. A support frame 2 is fixedly connected to the upper end of the workbench 1. A moving plate 3 is arranged inside the support frame 2. The front and rear ends of the moving plate 3 are respectively slidably connected to the front and rear inner walls of the support frame 2 through limit sliding grooves. An adjusting screw rod 4 is arranged above the support frame 2. The lower end of the adjusting screw rod 4 penetrates the upper side wall of the support frame 2 and is rotatably connected to the upper end of the moving plate 3. The adjusting screw rod 4 is threadedly connected to the upper side wall of the support frame 2. A moving frame 5 is arranged below the moving plate 3. An upper calendering roller 7 is arranged inside the moving frame 5. The left and right ends of the upper calendering roller 7 are respectively rotatably connected to the left and right inner walls of the moving frame 5. Two lower calendering rollers 8 are arranged inside the support frame 2. The two lower calendering rollers 8 are symmetrically arranged in the front and rear direction and are located below the upper calendering roller 7. The left and right ends of the lower calendering roller 8 are respectively rotatably connected to the left and right inner walls of the support frame 2. A driving motor 9 is arranged on the right side of the support frame 2. The output end of the driving motor 9 penetrates the right side wall of the support frame 2 and is fixedly connected to the right end of one of the lower calendering rollers 8. The two lower calendering rollers 8 are connected by a belt drive. An upper cleaning mechanism 6 is arranged at the front end of the moving frame 5. A lower cleaning mechanism 10 is arranged inside the support frame 2. The lower cleaning mechanism 10 is located below the two lower calendering rollers 8. When in use, the position of the upper calendering roller 7 is adjusted according to the thickness of the product. During adjustment, the adjusting screw rod 4 is rotated to drive the moving plate 3 to move in the up and down direction, thereby adjusting the position of the upper calendering roller 7. The graphene thermal conductive film 11 after coating and drying is placed between the upper calendering roller 7 and the two lower calendering rollers 8. The driving motor 9 is used to drive the two lower calendering rollers 8 to rotate in the same direction. As the lower calendering rollers 8 rotate, the graphene thermal conductive film 11 is driven to move backward. While moving, the upper calendering roller 7 and the lower calendering rollers 8 are used to perform a calendering operation on the graphene thermal conductive film 11;

[0027] The upper cleaning mechanism 6 includes an upper storage frame 15. The upper storage frame 15 is provided with an opening on the side close to the upper calendering roller 7. The upper storage frame 15 is fixed on the front side wall of the moving frame 5. An upper abutting scraper 17 is arranged inside the upper storage frame 15. The left and right ends of the upper abutting scraper 17 are respectively rotatably connected to the left and right inner walls of the upper storage frame 15. The left and right inner walls of the upper storage frame 15 are both fixedly connected with abutting plates 16. A first abutting spring 18 is arranged between the abutting plate 16 and the upper abutting scraper 17. The two ends of the first abutting spring 18 are respectively fixedly connected to the adjacent side walls of the abutting plate 16 and the upper abutting scraper 17. The first abutting spring 18 is always in a stretched state;

[0028] The rear end of the upper abutting scraper 17 abuts against the outer wall of the upper calendering roller 7. The front end of the upper abutting scraper 17 does not contact the front side wall of the upper storage frame 15. The impurities cleaned by the upper calendering roller 7 slide down along the upper abutting scraper 17 into the upper storage frame 15;

[0029] The lower cleaning mechanism 10 includes a lower storage frame 20. Auxiliary plates 21 are fixedly connected to the inner walls on the front and rear sides of the lower storage frame 20. A sliding plate 23 is arranged inside the lower storage frame 20. The lower ends of the auxiliary plates 21 are fixedly connected to second sliding rods 22. The lower ends of the second sliding rods 22 penetrate through the sliding plate 23 and are fixedly connected to the inner wall on the lower side of the lower storage frame 20. The second sliding rods 22 are slidably connected to the sliding plate 23. A second abutting spring 24 is sleeved on the second sliding rods 22. The upper end of the second abutting spring 24 is fixedly connected to the lower end of the sliding plate 23. The lower end of the second abutting spring 24 is fixedly connected to the inner wall on the lower side of the lower storage frame 20. The upper end of the sliding plate 23 is fixedly connected to a connecting frame 25. The upper end of the connecting frame 25 is fixedly connected to a lower abutting scraper 26. The second abutting spring 24 is always in a compressed state. Under the action of the second abutting spring 24, the front and rear ends of the lower abutting scraper 26 are respectively abutted against the side walls of the front and rear lower calendering rollers 8, so as to facilitate cleaning of impurities on the front and rear lower calendering rollers 8;

[0030] The rear end of the lower abutting scraper 26 is inclined downward. The rear end of the lower abutting scraper 26 is abutted against the outer wall of the rear lower calendering roller 8, and the front end of the lower abutting scraper 26 is abutted against the outer wall of the front lower calendering roller 8. A material dropping hole 19 is formed in the lower abutting scraper 26. A baffle plate 27 is fixedly connected to the upper end of the lower abutting scraper 26. The baffle plate 27 is located at the rear side of the material dropping hole 19. The horizontal dimension of the front and rear ends of the lower abutting scraper 26 is not less than the distance between the adjacent side walls of the front and rear lower calendering rollers 8. When cleaning the lower calendering roller 8, the sundries cleaned from the front lower calendering roller 8 fall into the lower storage frame 20 through the material dropping hole 19, and the sundries cleaned from the rear lower calendering roller 8 directly fall into the lower storage frame 20;

[0031] Symmetrically fixed to the left and right sides at the upper end of the moving frame 5 are first sliding rods 13. The upper ends of the first sliding rods 13 penetrate through the moving plate 3 and are fixedly connected to a baffle plate 12. The first sliding rods 13 are slidably connected to the moving plate 3. A buffer spring 14 is sleeved on the first sliding rods 13. The upper and lower ends of the buffer spring 14 are fixedly connected to the adjacent side walls of the moving frame 5 and the moving plate 3. The buffer spring 14 provides a downward acting force on the upper calendering roller 7, thereby improving the calendering effect and the quality of the product.

[0032] Working principle: When in use, adjust the position of the upper calendering roller 7 according to the thickness of the product. During adjustment, rotate the adjusting screw rod 4 to drive the moving plate 3 to move up and down, so as to adjust the position of the upper calendering roller 7. Place the graphene thermal conductive film 11 after coating and drying between the upper calendering roller 7 and the two lower calendering rollers 8. Use the driving motor 9 to drive the two lower calendering rollers 8 to rotate in the same direction. As the lower calendering rollers 8 rotate, drive the graphene thermal conductive film 11 to move backward. While moving, use the upper calendering roller 7 and the lower calendering rollers 8 to perform a calendering operation on the graphene thermal conductive film 11. During the calendering process, use the buffer spring 14 to provide a downward acting force on the upper calendering roller 7, thereby improving the calendering effect and the quality of the product; while the upper calendering roller 7 and the lower calendering rollers 8 are working, under the action of the abutting spring one 18, ensure that the rear end of the upper abutting scraper 17 always abuts against the side wall of the upper calendering roller 7. At the same time, under the action of the abutting spring two 24, push the front and rear ends of the lower abutting scraper 26 to abut against the outer side walls of the two lower calendering rollers 8 respectively. Through the cooperation of the upper cleaning mechanism 6 and the lower cleaning mechanism 10, the cleaning operation of the surfaces of the upper calendering roller 7 and the lower calendering rollers 8 is realized, avoiding the increase in the defective rate caused by roller surface pollution, and further ensuring the quality of the product and the stability of production.

[0033] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rolling tooling for graphene heat-conducting film, comprising a workbench (1) and a graphene heat-conducting film (11), characterized in that: A support frame (2) is fixedly connected to the upper end of the workbench (1). A moving plate (3) is arranged inside the support frame (2). The front and rear ends of the moving plate (3) are respectively connected to the front and rear inner side walls of the support frame (2) through limit sliding grooves. An adjusting screw rod (4) is arranged above the support frame (2). The lower end of the adjusting screw rod (4) penetrates through the upper side wall of the support frame (2) and is rotatably connected to the upper end of the moving plate (3). The adjusting screw rod (4) is threadedly connected to the upper side wall of the support frame (2). A moving frame (5) is arranged below the moving plate (3). An upper calendering roller (7) is arranged inside the moving frame (5). The left and right ends of the upper calendering roller (7) are respectively rotatably connected to the left and right inner side walls of the moving frame (5). Two lower calendering rollers (8) are arranged inside the support frame (2). The two lower calendering rollers (8) are symmetrically arranged in the front and rear directions and are located below the upper calendering roller (7). The left and right ends of the lower calendering roller (8) are respectively rotatably connected to the left and right inner side walls of the support frame (2). A driving motor (9) is arranged on the right side of the support frame (2). The output end of the driving motor (9) penetrates through the right side wall of the support frame (2) and is fixedly connected to the right end of one of the lower calendering rollers (8). The two lower calendering rollers (8) are connected by a belt drive. An upper cleaning mechanism (6) is arranged on the front side of the moving frame (5). A lower cleaning mechanism (10) is arranged inside the support frame (2). The lower cleaning mechanism (10) is located below the two lower calendering rollers (8).

2. The calendering tooling for graphene thermal conductive film according to claim 1, wherein: The upper cleaning mechanism (6) includes an upper storage frame (15). The upper storage frame (15) is open on one side close to the upper calendering roller (7). The upper storage frame (15) is fixed on the front side wall of the moving frame (5). An upper abutting scraper (17) is arranged inside the upper storage frame (15). The left and right ends of the upper abutting scraper (17) are respectively rotatably connected to the left and right inner side walls of the upper storage frame (15). Abutting plates (16) are fixedly connected to the left and right inner side walls of the upper storage frame (15). A first abutting spring (18) is arranged between the abutting plate (16) and the upper abutting scraper (17). The two ends of the first abutting spring (18) are respectively fixedly connected to the adjacent side walls of the abutting plate (16) and the upper abutting scraper (17).

3. The calendering tooling for graphene thermal conductive film according to claim 2, wherein: The rear end of the upper abutting scraper (17) abuts against the outer side wall of the upper calendering roller (7), and the front end of the upper abutting scraper (17) does not contact the front side wall of the upper storage frame (15).

4. A rolling tool for graphene thermal conductive film according to claim 1, characterized in that: The lower cleaning mechanism (10) includes a lower storage frame (20). Auxiliary plates (21) are fixedly connected to the inner walls on the front and rear sides of the lower storage frame (20). A sliding plate (23) is arranged inside the lower storage frame (20). A second sliding rod (22) is fixedly connected to the lower end of the auxiliary plate (21). The lower end of the second sliding rod (22) penetrates through the sliding plate (23) and is fixedly connected to the inner wall on the lower side of the lower storage frame (20). The second sliding rod (22) is slidably connected to the sliding plate (23). A second abutting spring (24) is sleeved on the second sliding rod (22). The upper end of the second abutting spring (24) is fixedly connected to the lower end of the sliding plate (23). The lower end of the second abutting spring (24) is fixedly connected to the inner wall on the lower side of the lower storage frame (20). A connecting frame (25) is fixedly connected to the upper end of the sliding plate (23). A lower abutting scraping plate (26) is fixedly connected to the upper end of the connecting frame (25).

5. A rolling tool for a graphene thermal conductive film according to claim 4, characterized in that: The rear end of the lower abutting scraping plate (26) is inclined downward. The rear end of the lower abutting scraping plate (26) abuts against the outer wall of the rear lower calendering roller (8). The front end of the lower abutting scraping plate (26) abuts against the outer wall of the front lower calendering roller (8). A material dropping hole (19) is formed in the lower abutting scraping plate (26). A baffle plate (27) is fixedly connected to the upper end of the lower abutting scraping plate (26). The baffle plate (27) is located behind the material dropping hole (19).

6. The calendering tooling for a graphene thermal conductive film according to claim 1, wherein: Sliding rods (13) are symmetrically and fixedly connected to the left and right sides of the upper end of the moving frame (5). The upper ends of the sliding rods (13) penetrate through the moving plate (3) and are fixedly connected to a baffle plate (12). The sliding rods (13) are slidably connected to the moving plate (3). A buffer spring (14) is sleeved on the sliding rods (13). The upper and lower ends of the buffer spring (14) are fixedly connected to the adjacent side walls of the moving frame (5) and the moving plate (3).

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