Graphene heat dissipation film flattening device

Abstract

This utility model relates to the field of graphene heat dissipation film technology, and more particularly to a graphene heat dissipation film flattening device. It includes an operating table, a U-shaped frame with an opening facing downwards above the operating table, a pressure roller inside the U-shaped frame, the end of the pressure roller being rotatably connected to the inner wall of the U-shaped frame, and a drive mechanism for rotating the pressure roller connected to one end of the pressure roller. A lifting mechanism is connected to the top of the U-shaped frame via a connector, the lifting mechanism being mounted on a crossbeam, and support columns connected to the bottom of both ends of the crossbeam. A linear motor is mounted at the bottom of the support columns, and the linear motor is mounted on the side of the operating table along its length. This utility model achieves uniform flattening of the graphene heat dissipation film through the rotation of the pressure roller and the horizontal movement of the linear motor, avoiding the film layer detachment or deformation problems caused by pulling during traditional winding and flattening processes.

Description

Technical Field

[0001] This utility model relates to the field of graphene heat dissipation film technology, and in particular to a graphene heat dissipation film flattening device. Background Technology

[0002] Graphene heat dissipation film is a high thermal conductivity composite material made from graphene. It forms a high thermal conductivity network structure by stacking multiple layers of graphene, which has both flexibility and mechanical strength. It is often used in the heat dissipation system of mobile phones, tablets, laptops and other devices to improve the heat dissipation efficiency of high-power components such as processors and batteries.

[0003] In the production of graphene heat dissipation films, uneven coating or bending can easily occur, necessitating subsequent flattening and smoothing operations. Existing flattening devices mostly achieve flattening of the graphene heat dissipation film by squeezing it between two rollers during the winding process. However, with continuous winding, a certain pulling force is exerted on the graphene heat dissipation film during flattening, causing it to prematurely detach from the roller's working area, thus affecting the flattening effect. To address this, we propose a graphene heat dissipation film flattening device. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned shortcomings in the existing technology by proposing a graphene heat dissipation film flattening device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a graphene heat dissipation film flattening device, including an operating table, a U-shaped frame with an opening facing downwards above the operating table, a pressure roller inside the U-shaped frame, the end of the pressure roller being rotatably connected to the inner wall of the U-shaped frame, and a drive mechanism for driving the pressure roller to rotate being connected to one end of the pressure roller.

[0006] A lifting mechanism is connected to the top of the U-shaped frame via a connector. The lifting mechanism is mounted on the crossbeam, and support columns are connected to the bottom of both ends of the crossbeam. A linear motor is mounted at the bottom of the support column, and the linear motor is mounted on the side of the operating table along the length of the operating table.

[0007] Preferably, a control box is installed on the outside of one of the support columns, and a controller is installed inside the control box. The controller is connected to the lifting mechanism and the linear motor respectively through wires.

[0008] Preferably, the drive mechanism includes a first drive motor, which is mounted on the top end of the U-shaped frame. The first drive motor is connected to the controller via a wire, and a second pulley is mounted on the output end of the first drive motor. A first pulley is located below the second pulley. The first pulley is coaxially mounted on the pressure roller and is connected to the second pulley via a belt.

[0009] Preferably, mounting rollers are provided at both ends of the operating table, and the ends of the mounting rollers are rotatably mounted on the fixed base, which is fixed to the operating table. A second drive motor is mounted on one end of one of the mounting rollers, the second drive motor is mounted on the fixed base, and the second drive motor is connected to the controller through a wire.

[0010] Preferably, the connector includes a connecting frame, which is fixed to the bottom of the lifting mechanism, and at least two spaced first guide shafts slide through the connecting frame. The bottom of the first guide shaft is mounted on a U-shaped frame, and a limit plate is mounted on the top of the first guide shaft. Compression springs are sleeved at both ends of the first guide shaft, and the compression springs are arranged on the upper and lower sides of the connecting frame.

[0011] Preferably, at least one second guide shaft is provided parallel to the side of the lifting mechanism, the bottom of the second guide shaft is fixed to the connecting frame, and the top of the second guide shaft slides through the crossbeam.

[0012] Preferably, support rollers are provided parallel to each other at both ends above the operating table, the ends of the support rollers are rotatably mounted on the support frame, and the support frame is fixed to the operating table.

[0013] The design scheme proposed in this utility model has the following beneficial effects in application:

[0014] 1. This utility model achieves uniform flattening of the graphene heat dissipation film by rotating the pressure roller and moving the linear motor horizontally, avoiding the problem of film layer detachment or deformation caused by pulling during the traditional winding and flattening process.

[0015] 2. This utility model uses a lifting mechanism combined with a compression spring buffer design to ensure that the pressure applied by the pressure roller is moderate, which can both fully flatten the film layer and prevent excessive pressure from causing graphene to break or shift. Attached Figure Description

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

[0017] Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ;

[0018] Figure 3 This is a side view of the present invention;

[0019] Figure 4 This is a schematic diagram of the U-shaped frame structure of this utility model.

[0020] In the diagram: 1. Control panel; 2. Linear motor; 3. Crossbeam; 4. Support column; 5. Lifting mechanism; 6. U-shaped frame; 7. Connecting frame; 8. First guide shaft; 9. Limiting plate; 10. Compression spring; 11. Pressure roller; 12. First pulley; 13. Second pulley; 14. First drive motor; 15. Belt; 16. Second guide shaft; 17. Support roller; 18. Support frame; 19. Placement roller; 20. Fixed seat; 21. Second drive motor; 22. Control box. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Example

[0023] Reference Figures 1-4 A graphene heat dissipation film flattening device includes an operating table 1. A U-shaped frame 6 with an opening facing downward is provided above the operating table 1. A pressure roller 11 is provided inside the U-shaped frame 6. The end of the pressure roller 11 is rotatably connected to the inner wall of the U-shaped frame 6. One end of the pressure roller 11 is connected to a drive mechanism that drives the pressure roller 11 to rotate, so that the pressure roller 11 can rotate freely.

[0024] Among them, such as Figure 2 and Figure 4 As shown, the drive mechanism includes a first drive motor 14, which is mounted on the top end of the U-shaped frame 6. The first drive motor 14 is connected to the controller via a wire, and a second pulley 13 is mounted on the output end of the first drive motor 14. Below the second pulley 13, a first pulley 12 is provided. The first pulley 12 is coaxially mounted on the pressure roller 11 and is connected to the second pulley 13 via a belt to provide power for the rotation of the pressure roller 11. The belt drive enables the first drive motor 14 to be mounted on the top of the U-shaped frame 6, thereby saving space occupied by the U-shaped frame 6 in the horizontal direction.

[0025] A lifting mechanism 5 is connected to the top of the U-shaped frame 6 via a connector. The lifting mechanism 5 is installed on the crossbeam 3, and support columns 4 are connected to the bottom of both ends of the crossbeam 3. The bottom of the support columns 4 is set on the linear motor 2. The linear motor 2 is installed on the side of the operating table 1 along the length direction of the operating table 1. In actual use, the lifting mechanism 5 is one of an electric push rod, a hydraulic cylinder, or a pneumatic cylinder, which provides power for the lifting of the U-shaped frame 6.

[0026] Specifically, in use, the graphene heat dissipation film can be laid on the operating table 1, and then the linear motor 2 is used to move the pressure roller 11 from one end of the top of the operating table 1 to the other end. During the movement of the pressure roller 11, the first drive motor 14 will also drive the pressure roller 11 to rotate continuously, thereby flattening the film laid on the operating table 1. This ensures that the pressure roller 11 always flattens the graphene heat dissipation film downwards, which not only ensures that the graphene heat dissipation film is fully flattened, but also avoids the graphene heat dissipation film being subjected to forces in directions other than the vertical direction, so as to prevent excessive horizontal pressure from causing the graphene to be displaced or shifted on the film.

[0027] It should be noted that the connector includes a connecting frame 7, which is fixed to the bottom of the lifting mechanism 5. At least two spaced first guide shafts 8 slide through the connecting frame 7. The bottom of the first guide shaft 8 is mounted on the U-shaped frame 6, and the top of the first guide shaft 8 is mounted on a limiting plate 9. Compression springs 10 are sleeved at both ends of the first guide shaft 8. The compression springs 10 are arranged on the upper and lower sides of the connecting frame 7 to buffer the pressure of the lifting mechanism 5 pushing the pressure roller 11 onto the graphene heat dissipation film. This ensures that the pressure roller 11 exerts sufficient force on the graphene heat dissipation film while preventing excessive pressure from the pressure roller 11 on the graphene heat dissipation film, which could cause the graphene to break on the film.

[0028] Furthermore, at least one second guide shaft 16 is provided parallel to the side of the lifting mechanism 5. The bottom of the second guide shaft 16 is fixed to the connecting frame 7, and the top of the second guide shaft 16 is slidably inserted through the crossbeam 3 to guide the lifting and lowering of the pressure roller 11, thereby improving the stability of the pressure roller 11 during lifting and lowering.

[0029] It needs to be further explained that, such as Figure 1 As shown, mounting rollers 19 are provided at both ends of the operating table 1. The ends of the mounting rollers 19 are rotatably mounted on the fixed base 20, and the fixed base 20 is fixed to the operating table 1. A second drive motor 21 is installed on one end of one of the mounting rollers 19. The second drive motor 21 is mounted on the fixed base 20. In use, the graphene heat dissipation film to be flattened can be wound onto the mounting roller 19 that is not connected to the second drive motor 21. Then, one end of the graphene heat dissipation film is pulled to lay flat on the operating table 1 and fixed to the other mounting roller 19. With the operation of the second drive motor 21, the graphene heat dissipation film that has been flattened on the operating table 1 can be wound up. Afterwards, the unflattened graphene heat dissipation film will be laid back on the operating table 1 for subsequent flattening operations.

[0030] Furthermore, support rollers 17 are provided parallel to each other at both ends above the operating table 1. The ends of the support rollers 17 are rotatably mounted on the support frame 18, and the support frame 18 is fixed to the operating table 1. This can provide upward support for both ends of the graphene heat dissipation film placed on the operating table 1. In actual use, the support rollers 17 are set close to the edge of the operating table 1 to avoid the graphene heat dissipation film from contacting the edge of the operating table 1, thereby preventing scratches on the graphene heat dissipation film.

[0031] Specifically, a control box 22 is installed on the outside of one of the support columns 4. The control box 22 contains a controller, which is connected to the lifting mechanism 5, the linear motor 2, and the second drive motor 21 via wires. In actual use, the controller is one of a PLC logic controller, a control motherboard, or a control host. A touch screen is also installed on the outer wall of the control box 22. The touch screen is connected to the controller via wires to control the flattening device.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A graphene heat spreader film flattening device, characterized by: Includes an operating table (1), and a U-shaped frame (6) with an opening facing downward is provided above the operating table (1). A pressure roller (11) is provided on the inner side of the U-shaped frame (6). The end of the pressure roller (11) is rotatably connected to the inner wall of the U-shaped frame (6), and one end of the pressure roller (11) is connected to a drive mechanism that drives the pressure roller (11) to rotate. A lifting mechanism (5) is connected to the top of the U-shaped frame (6) via a connector. The lifting mechanism (5) is installed on the crossbeam (3), and support columns (4) are connected to the bottom of both ends of the crossbeam (3). The bottom of the support column (4) is set on the linear motor (2), and the linear motor (2) is installed on the side of the operating table (1) along the length direction of the operating table (1).

2. The graphene heat dissipation film flattening device according to claim 1, characterized in that: A control box (22) is installed on the outside of one of the support columns (4). The control box (22) contains a controller, which is connected to the lifting mechanism (5) and the linear motor (2) respectively via wires.

3. The graphene heat dissipation film flattening device according to claim 2, characterized in that: The drive mechanism includes a first drive motor (14), which is located at the top end of the U-shaped frame (6). The first drive motor (14) is connected to the controller via a wire, and a second pulley (13) is installed on the output end of the first drive motor (14). A first pulley (12) is located below the second pulley (13). The first pulley (12) is coaxially mounted on the pressure roller (11), and the first pulley (12) is connected to the second pulley (13) via a belt.

4. The graphene heat dissipation film flattening device according to claim 2, characterized in that: Mounting rollers (19) are provided at both ends of the operating table (1). The ends of the mounting rollers (19) are rotatably mounted on the fixed base (20), and the fixed base (20) is fixed to the operating table (1). A second drive motor (21) is mounted on one end of one of the mounting rollers (19). The second drive motor (21) is mounted on the fixed base (20), and the second drive motor (21) is connected to the controller through a wire.

5. The graphene heat dissipation film flattening device according to claim 1, characterized in that: The connector includes a connecting frame (7), which is fixed on the bottom of the lifting mechanism (5). At least two first guide shafts (8) are slidably passed through the connecting frame (7). The bottom of the first guide shaft (8) is mounted on a U-shaped frame (6), and a limit plate (9) is mounted on the top of the first guide shaft (8). Compression springs (10) are sleeved at both ends of the first guide shaft (8). The compression springs (10) are arranged on the upper and lower sides of the connecting frame (7).

6. The graphene heat dissipation film flattening device according to claim 5, characterized in that: At least one second guide shaft (16) is provided parallel to the side of the lifting mechanism (5). The bottom of the second guide shaft (16) is fixed to the connecting frame (7), and the top of the second guide shaft (16) slides through the crossbeam (3).

7. The graphene heat dissipation film flattening device according to claim 1, characterized in that: Support rollers (17) are provided parallel to each other at both ends above the operating table (1). The ends of the support rollers (17) are rotatably mounted on the support frame (18), and the support frame (18) is fixed to the operating table (1).

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