Production equipment of graphene heat-conducting film

Abstract

The utility model discloses production equipment of a graphene heat-conducting film, and relates to the technical field of heat-conducting film production equipment. Two limiting mechanisms, a winding roller and a substrate material are arranged above the workbench, a coating mechanism is arranged below the workbench and located on the right side of the right limiting mechanism, a fixing frame is fixedly connected to the upper end of the workbench, and a drying mechanism is arranged on the fixing frame and located on the right side of the coating mechanism. The upper limiting roller is pushed to be close to the lower limiting roller under the action of the abutting spring, the upper limiting roller and the lower limiting roller are matched to clamp and limit a substrate material, and the situation that the substrate material vibrates in the substrate material cleaning process of the cleaning mechanism, and adverse influences are brought to follow-up coating operation is avoided. And a dustproof frame is arranged between the limiting mechanism and the coating mechanism, and after the cleaning mechanism completes cleaning of the substrate material, the probability that the surface, needing to be coated, of the substrate material is in contact with external dust before coating is greatly reduced, so that normal coating operation is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of thermal conductive film production equipment, in particular to a production equipment for graphene thermal conductive film. Background Technique

[0002] Graphene thermal conductive film is an important thermal management material for electronic devices and systems, and its thermal conductivity is related to the lateral size of the raw materials. The preparation process of graphene thermal conductive film usually includes operations such as raw material preparation, coating, drying, heat treatment, and cutting and detection.

[0003] If dust particles remain on the surface of the substrate of the graphene thermal conductive film production equipment, it will interfere with the uniform coating of graphene raw materials on the substrate, resulting in an uneven coating and affecting its thermal conductivity. During the cleaning process of the existing production equipment, it is easy to drive the substrate material to shake, which has an adverse impact on the subsequent coating operation. Therefore, the application proposes a production equipment for graphene thermal conductive film to solve the above problems. Content of the Utility Model

[0004] The purpose of the utility model is to provide a production equipment for graphene thermal conductive film, which solves the technical problems proposed in the background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A production equipment for graphene thermal conductive film, including a workbench, two limiting mechanisms, a winding roller and a substrate material are arranged above the workbench, a cleaning mechanism is arranged between the two limiting mechanisms, a coating mechanism is arranged below the workbench, the coating mechanism is located on the right side of the right limiting mechanism, a fixing frame is fixedly connected to the upper end of the workbench, a drying mechanism is arranged on the fixing frame, the right end of the substrate material sequentially passes through the two limiting mechanisms, the cleaning mechanism, the coating mechanism and the drying mechanism, and is wound on the winding roller, a supporting roller is arranged inside the fixing frame, the front and rear ends of the supporting roller are respectively rotationally connected to the front and rear sides inside the fixing frame, and the substrate material is located between the supporting tube and the fixing frame;

[0006] The drying mechanism includes a hot air blower, the hot air blower is fixed on the workbench, a drying box is fixedly connected to the fixing frame, a wind baffle is fixedly connected to the left end of the fixing frame, a hot air hole is opened on the side wall of the drying box close to the wind baffle, the output end of the hot air blower is communicated with the drying box, and the substrate material is located between the wind baffle and the drying box;

[0007] The coating mechanism includes a material storage frame. The upper end of the material storage frame penetrates through the workbench and is fixedly connected to the workbench. Inside the material storage frame, there are two lower limit rods and a coating roller. The front and rear ends of the lower limit rods and the coating roller are respectively rotatably connected to the front and rear inner side walls of the material storage frame. A coating motor is fixedly connected to the front outer wall of the material storage frame. The output end of the coating motor penetrates through the front side wall of the material storage frame and is fixedly connected to the front end of the coating roller.

[0008] Preferably, a filter screen is fixedly connected to the inner side wall of the material storage frame. The filter screen is located below the coating roller. A feeding pump is arranged outside the material storage frame. The output end of the feeding pump penetrates through the side wall of the material storage frame and is communicated with the material storage frame. Two liquid level detection sensors are fixedly connected to the inner side wall of the material storage frame. The liquid level detection sensors and the connection of the output end of the feeding pump to the material storage frame are both located below the filter screen. The liquid level detection sensors are electrically connected to the feeding pump through a controller.

[0009] Preferably, the limiting mechanism includes support columns. The support columns are fixed to the upper end of the workbench. Inside the two support columns, there are a lower limit roller and an upper limit roller. The front and rear ends of the lower limit roller are respectively rotatably connected to the adjacent side walls of the front and rear support columns. Slide grooves are formed in the adjacent side walls of the two support columns. A slide block is slidably connected in the slide grooves. The front and rear ends of the upper limit roller are respectively rotatably connected to the adjacent side walls of the front and rear slide blocks. A slide rod is fixedly connected to the lower inner side wall of the slide groove. The upper end of the slide rod penetrates through the slide block and is fixedly connected to the upper inner side wall of the slide groove. A contact spring is sleeved on the slide rod. The upper end of the contact spring is fixedly connected to the upper inner side wall of the slide groove. The lower end of the contact spring is fixedly connected to the upper end of the slide block.

[0010] Preferably, the cleaning mechanism is located below the base material. The cleaning mechanism includes a cleaning frame and a dust suction pump. A cleaning groove is arranged at the upper end of the cleaning frame. A cleaning roller is arranged inside the cleaning groove. The rear end of the cleaning roller is rotatably connected to the rear inner side wall of the cleaning groove. Cleaning brushes are fixedly connected to the side wall of the cleaning roller. A cleaning motor is fixedly connected to the front end of the cleaning frame. The output end of the cleaning motor penetrates through the front side wall of the cleaning groove and is fixedly connected to the front end of the cleaning roller. A dust collection chamber is arranged in the cleaning frame. A dust suction hole is formed in the upper side wall of the dust collection chamber. The output end of the dust suction pump penetrates through the side wall of the dust collection chamber and is communicated with the dust collection chamber. The right end of the upper side wall of the dust collection chamber is inclined upward. The right end of the upper side wall of the dust collection chamber is close to the lower surface of the base material.

[0011] Preferably, an upper limit rod is provided between the limiting mechanism and the coating mechanism on the right side. The upper limit rod is located below the base material. A dust-proof frame is provided between the limiting mechanism and the coating mechanism on the right side. The upper end surface of the dust-proof frame is close to the lower surface of the base material.

[0012] Preferably, a scraper is provided inside the material storage frame. The front and rear ends of the scraper are respectively fixedly connected to the front and rear inner side walls of the material storage frame. The right end of the scraper is close to the side wall of the coating roller.

[0013] Compared with the related art, a production device for graphene thermal conductive film provided by the present invention has the following beneficial effects:

[0014] 1. The production device for graphene thermal conductive film provided by the present invention is provided with limiting mechanisms on both sides of the cleaning mechanism. A contact spring is arranged in the limiting mechanism. Under the action of the contact spring, the upper limit roller is pushed to approach the lower limit roller. The upper limit roller and the lower limit roller are used in cooperation to clamp and limit the base material, avoiding vibration of the base material during the cleaning of the base material by the cleaning mechanism, which has an adverse impact on the subsequent coating operation; a dust-proof frame is provided between the limiting mechanism and the coating mechanism. After the cleaning mechanism finishes cleaning the base material, the probability that the surface to be coated of the base material contacts external dust before coating is greatly reduced, thus ensuring the normal progress of the coating operation.

[0015] 2. The production device for graphene thermal conductive film provided by the present invention is provided with a filter screen in the material storage frame. The filter screen is located directly below the coating roller, effectively preventing the influence of impurities in the raw materials on the coating quality, thus ensuring the quality of the coated products. A liquid level detection sensor is provided inside the material storage frame. The liquid level detection sensor can be used to detect the material quantity in the storage tank in real time. At the same time, a feeding pump is used to supply materials in real time, avoiding the lack of materials from affecting the normal progress of the coating operation. Description of the Drawings

[0016] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 is a schematic diagram of the overall structure of the present invention from another angle;

[0018] Figure 3 is a schematic diagram of the overall structure of the present invention from yet another angle;

[0019] Figure 4 is a schematic sectional view of the limiting mechanism of the present invention;

[0020] Figure 5 is a schematic diagram of the structure of the cleaning mechanism of the present invention;

[0021] Figure 6Schematic cross-sectional structure diagram of the cleaning frame of the present utility model;

[0022] Figure 7 Schematic cross-sectional structure diagram of the coating mechanism of the present utility model;

[0023] Figure 8 Schematic cross-sectional structure diagram of the present utility model;

[0024] Figure 9 Of the present utility model Figure 8 Enlarged view of part A;

[0025] Figure 10 Of the present utility model Figure 8 Enlarged view of part B.

[0026] In the figure: 1, workbench; 2, limiting mechanism; 3, cleaning mechanism; 4, coating mechanism; 5, fixing frame; 6, drying oven; 7, wind deflector; 8, hot air blower; 9, supporting roller; 10, base material; 11, winding roller; 12, supporting column; 13, lower limiting roller; 14, upper limiting roller; 15, sliding groove; 16, sliding block; 17, sliding rod; 18, abutting spring; 19, cleaning frame; 20, cleaning groove; 21, cleaning roller; 22, cleaning brush; 23, cleaning motor; 24, dust suction pump; 25, dust collection chamber; 26, dust suction hole; 27, upper limiting rod; 28, dust-proof frame; 29, storage frame; 30, lower limiting rod; 31, feeding pump; 32, coating roller; 33, coating motor; 34, liquid level detection sensor; 35, filter screen; 36, scraper. Detailed implementation manners

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described with reference to 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 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.

[0028] Embodiment:

[0029] Please refer to Figures 1 - 10, the present utility model provides a technical solution: a production device for graphene thermal conductive film, including a workbench 1, two limiting mechanisms 2, a winding roller 11 and a base material 10 are arranged above the workbench 1, a cleaning mechanism 3 is arranged between the two limiting mechanisms 2, a coating mechanism 4 is arranged below the workbench 1, the coating mechanism 4 is located on the right side of the right limiting mechanism 2, a fixing frame 5 is fixedly connected to the upper end of the workbench 1, a drying mechanism is arranged on the fixing frame 5, the right end of the base material 10 sequentially passes through the two limiting mechanisms 2, the cleaning mechanism 3, the coating mechanism 4 and the drying mechanism, and is wound on the winding roller 11, a support roller 9 is arranged inside the fixing frame 5, the front and rear ends of the support roller 9 are respectively rotatably connected to the inner sides of the front and rear sides of the fixing frame 5, the base material 10 is located between the support tube and the fixing frame 5. After the base material 10 of this device is coated and dried, the support roller 9 is used to turn the base material 10 to the left and wind it, greatly reducing the volume of the device and facilitating the placement of the device;

[0030] The limiting mechanism 2 includes support columns 12, the support columns 12 are fixed to the upper end of the workbench 1, a lower limiting roller 13 and an upper limiting roller 14 are arranged inside the two support columns 12, the front and rear ends of the lower limiting roller 13 are respectively rotatably connected to the adjacent side walls of the front and rear two support columns 12, sliding grooves 15 are opened on the adjacent side walls of the two support columns 12, sliding blocks 16 are slidably connected in the sliding grooves 15, the front and rear ends of the upper limiting roller 14 are respectively rotatably connected to the adjacent side walls of the front and rear two sliding blocks 16, a sliding rod 17 is fixedly connected to the lower inner wall of the sliding groove 15, the upper end of the sliding rod 17 penetrates through the sliding block 16 and is fixedly connected to the upper inner wall of the sliding groove 15, a contact spring 18 is sleeved on the sliding rod 17, the upper end of the contact spring 18 is fixedly connected to the upper inner wall of the sliding groove 15, and the lower end of the contact spring 18 is fixedly connected to the upper end of the sliding block 16. During the movement of the base material 10, the contact spring 18 in the left and right limiting mechanisms 2 is used to push the upper limiting roller 14 to approach the lower limiting roller 13, and the upper limiting roller 14 and the lower limiting roller 13 are used to cooperate to clamp and limit the base material 10, so as to avoid the vibration of the base material 10 during the operation of the cleaning mechanism 3 and affect the subsequent coating operation;

[0031] The cleaning mechanism 3 is located below the base material 10. The cleaning mechanism 3 includes a cleaning frame 19 and a dust suction pump 24. A cleaning groove 20 is provided at the upper end of the cleaning frame 19. A cleaning roller 21 is arranged inside the cleaning groove 20. The rear end of the cleaning roller 21 is rotatably connected to the rear inner wall of the cleaning groove 20. A cleaning brush 22 is fixedly connected to the side wall of the cleaning roller 21. A cleaning motor 23 is fixedly connected to the front end of the cleaning frame 19. The output end of the cleaning motor 23 penetrates the front side wall of the cleaning groove 20 and is fixedly connected to the front end of the cleaning roller 21. A dust collection chamber 25 is arranged in the cleaning frame 19. A dust suction hole 26 is opened on the upper side wall of the dust collection chamber 25. The output end of the dust suction pump 24 penetrates the side wall of the dust collection chamber 25 and is communicated with the dust collection chamber 25. The right side end of the upper side wall of the dust collection chamber 25 is inclined upward. The right side end of the upper side wall of the dust collection chamber 25 is close to the lower surface of the base material 10. During cleaning, the cleaning motor 23 is used to drive the cleaning roller 21 to rotate. The cleaning brush 22 on the surface of the cleaning roller 21 is used to clean the surface of the base material 10 that needs to be coated. At the same time, the dust suction pump 24 is used to clean the raised dust and complete the collection in the dust collection chamber 25;

[0032] An upper limit rod 27 is arranged between the right side limit mechanism 2 and the coating mechanism 4. The upper limit rod 27 is located below the base material 10. A dustproof frame 28 is arranged between the right side limit mechanism 2 and the coating mechanism 4. The upper end surface of the dustproof frame 28 is close to the lower surface of the base material 10. The cleaned base material 10 is protected from contact with external dust by the dustproof frame 28, so as to ensure the quality of subsequent products;

[0033] The coating mechanism 4 includes a storage frame 29. The upper end of the storage frame 29 penetrates through the workbench 1 and is fixedly connected to the workbench 1. Inside the storage frame 29, there are two lower limit rods 30 and a coating roller 32. The front and rear ends of the lower limit rods 30 and the coating roller 32 are respectively rotatably connected to the front and rear inner sidewalls of the storage frame 29. On the front outer wall of the storage frame 29, there is fixedly connected a coating motor 33. The output end of the coating motor 33 penetrates through the front sidewall of the storage frame 29 and is fixedly connected to the front end of the coating roller 32. On the inner sidewall of the storage frame 29, there is fixedly connected a filter screen 35. The filter screen 35 is located below the coating roller 32. Outside the storage frame 29, there is a feeding pump 31. The output end of the feeding pump 31 penetrates through the sidewall of the storage frame 29 and is communicated with the storage frame 29. On the inner sidewall of the storage frame 29, there are fixedly connected two liquid level detection sensors 34. The liquid level detection sensors 34 and the connection of the output end of the feeding pump 31 to the storage frame 29 are both located below the filter screen 35. The liquid level detection sensors 34 are electrically connected to the feeding pump 31 through a controller. The upper liquid level detection sensor 34 is a high liquid level sensor; the lower liquid level detection sensor 34 is a low liquid level sensor. The position of the high liquid level sensor is lower than the highest height of the coating roller 32, and the position of the low liquid level sensor is higher than the lowest height of the coating roller 32. During the coating operation, the coating motor 33 is used to drive the coating roller 32 to rotate, and the coating roller 32 is used to coat the graphene material on the surface of the substrate material 10. As the winding roller 11 rotates, the substrate material 10 after the coating operation moves into the drying mechanism;

[0034] Inside the storage frame 29, there is a scraper 36. The front and rear ends of the scraper 36 are respectively fixedly connected to the front and rear inner sidewalls of the storage frame 29. The right end of the scraper 36 is close to the sidewall of the coating roller 32. The scraper 36 can be used to scrape off the excess graphene material on the surface of the coating roller 32 to avoid uneven coating on the surface of the substrate material 10;

[0035] The drying mechanism includes a hot air blower 8. The hot air blower 8 is fixed on the workbench 1. On the fixing frame 5, there is fixedly connected a drying box 6. On the left end of the fixing frame 5, there is fixedly connected a wind shield 7. On the sidewall of the drying box 6 close to the wind shield 7, there are hot air holes opened. The output end of the hot air blower 8 is communicated with the drying box 6. The substrate material 10 is located between the wind shield 7 and the drying box 6. After the coating operation of the substrate material 10 is completed, the hot air blower 8 and the drying box 6 are used in cooperation to dry the graphene coating on the substrate material 10.

[0036] Working principle: During use, the feeding pump 31 feeds materials into the storage tank. When the high-level sensor detects the materials, the feeding pump 31 is paused. The winding roller 11 drives the base material 10 to move. During the movement of the base material 10, the abutting springs 18 in the left and right limiting mechanisms 2 push the upper limiting roller 14 towards the lower limiting roller 13. The upper limiting roller 14 and the lower limiting roller 13 cooperate to clamp and limit the base material 10. The cleaning motor 23 drives the cleaning roller 21 to rotate, and the cleaning brush 22 on the surface of the cleaning roller 21 is used to clean the surface of the base material 10 that needs to be coated. At the same time, the dust suction pump 24 is used to clean the raised dust, and the collection is completed in the dust collection chamber 25. The cleaned base material 10 is protected by the dust-proof frame 28 for the coating surface to avoid contact with external dust. When passing under the lower limiting rods 30 on the left and right sides, the coating motor 33 drives the coating roller 32 to rotate, and the graphene material is coated on the surface of the base material 10 through the coating roller 32. As the winding roller 11 rotates, the base material 10 after the coating operation moves to the drying mechanism, and the hot air blower 8 and the drying box 6 cooperate to dry the graphene coating on the base material 10. After drying, the winding operation is completed through the winding roller 11.

[0037] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand 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 production device for a graphene thermal conductive film, comprising a workbench (1), characterized in that: Above the workbench (1), two limiting mechanisms (2), a winding roller (11) and a base material (10) are provided. A cleaning mechanism (3) is arranged between the two limiting mechanisms (2). Below the workbench (1), a coating mechanism (4) is provided. The coating mechanism (4) is located on the right side of the right limiting mechanism (2). The upper end of the workbench (1) is fixedly connected with a fixing frame (5). A drying mechanism is arranged on the fixing frame (5). The right end of the base material (10) sequentially passes through the two limiting mechanisms (2), the cleaning mechanism (3), the coating mechanism (4) and the drying mechanism, and is wound on the winding roller (11). A support roller (9) is arranged inside the fixing frame (5). The front and rear ends of the support roller (9) are respectively rotatably connected to the inner sides of the front and rear sides of the fixing frame (5). The base material (10) is located between the support roller and the fixing frame (5). The drying mechanism includes a hot air blower (8). The hot air blower (8) is fixed on the workbench (1). A drying box (6) is fixedly connected to the fixing frame (5). A wind shield (7) is fixedly connected to the left end of the fixing frame (5). Hot air holes are formed in the side wall of the drying box (6) close to the wind shield (7). The output end of the hot air blower (8) is communicated with the drying box (6). The base material (10) is located between the wind shield (7) and the drying box (6). The coating mechanism (4) includes a material storage frame (29). The upper end of the material storage frame (29) penetrates through the workbench (1) and is fixedly connected to the workbench (1). Two lower limiting rods (30) and a coating roller (32) are arranged inside the material storage frame (29). The front and rear ends of the lower limiting rods (30) and the coating roller (32) are respectively rotatably connected to the inner walls of the front and rear sides of the material storage frame (29). A coating motor (33) is fixedly connected to the front outer wall of the material storage frame (29). The output end of the coating motor (33) penetrates through the front side wall of the material storage frame (29) and is fixedly connected to the front end of the coating roller (32).

2. The production equipment of a graphene thermal conductive film according to claim 1, characterized in that: A filter screen (35) is fixedly connected to the inner side wall of the material storage frame (29). The filter screen (35) is located below the coating roller (32). A feeding pump (31) is arranged outside the material storage frame (29). The output end of the feeding pump (31) penetrates through the side wall of the material storage frame (29) and is communicated with the material storage frame (29). Two liquid level detection sensors (34) are fixedly connected to the inner side wall of the material storage frame (29). The liquid level detection sensors (34) and the connection of the output end of the feeding pump (31) to the material storage frame (29) are both located below the filter screen (35). The liquid level detection sensors (34) are electrically connected to the feeding pump (31) through a controller.

3. The production equipment of a graphene thermal conductive film according to claim 1, characterized in that: The limiting mechanism (2) includes a support column (12). The support column (12) is fixed to the upper end of the workbench (1). Inside the two support columns (12), a lower limiting roller (13) and an upper limiting roller (14) are arranged. The front and rear ends of the lower limiting roller (13) are respectively rotationally connected to the adjacent side walls of the front and rear support columns (12). Sliding grooves (15) are formed in the adjacent side walls of the two support columns (12). A sliding block (16) is slidably connected in the sliding groove (15). The front and rear ends of the upper limiting roller (14) are respectively rotationally connected to the adjacent side walls of the front and rear sliding blocks (16). A sliding rod (17) is fixedly connected to the lower inner wall of the sliding groove (15). The upper end of the sliding rod (17) penetrates through the sliding block (16) and is fixedly connected to the upper inner wall of the sliding groove (15). A abutting spring (18) is sleeved on the sliding rod (17). The upper end of the abutting spring (18) is fixedly connected to the upper inner wall of the sliding groove (15). The lower end of the abutting spring (18) is fixedly connected to the upper end of the sliding block (16).

4. The production equipment of a graphene thermal conductive film according to claim 1, characterized in that: The cleaning mechanism (3) is located below the base material (10). The cleaning mechanism (3) includes a cleaning frame (19) and a dust suction pump (24). A cleaning groove (20) is arranged at the upper end of the cleaning frame (19). A cleaning roller (21) is arranged inside the cleaning groove (20). The rear end of the cleaning roller (21) is rotationally connected to the rear inner wall of the cleaning groove (20). A cleaning brush (22) is fixedly connected to the side wall of the cleaning roller (21). A cleaning motor (23) is fixedly connected to the front end of the cleaning frame (19). The output end of the cleaning motor (23) penetrates through the front side wall of the cleaning groove (20) and is fixedly connected to the front end of the cleaning roller (21). A dust collection chamber (25) is arranged in the cleaning frame (19). A dust suction hole (26) is formed in the upper side wall of the dust collection chamber (25). The output end of the dust suction pump (24) penetrates through the side wall of the dust collection chamber (25) and is communicated with the dust collection chamber (25). The right end of the upper side wall of the dust collection chamber (25) is inclined upward. The right end of the upper side wall of the dust collection chamber (25) is close to the lower surface of the base material (10).

5. The production equipment of a graphene thermal conductive film according to claim 1, characterized in that: An upper limiting rod (27) is arranged between the right limiting mechanism (2) and the coating mechanism (4). The upper limiting rod (27) is located below the base material (10). A dust-proof frame (28) is arranged between the right limiting mechanism (2) and the coating mechanism (4). The upper end surface of the dust-proof frame (28) is close to the lower surface of the base material (10).

6. The production equipment of a graphene thermal conductive film according to claim 2, characterized in that: A scraper (36) is arranged inside the material storage frame (29). The front and rear ends of the scraper (36) are respectively fixedly connected to the front and rear inner walls of the material storage frame (29). The right end of the scraper (36) is close to the side wall of the coating roller (32).

Images