Graphite heat-conducting film abnormal bubble removing device

Abstract

The utility model discloses a graphite heat conduction film bubble equipment is removed to abnormal, including support box, unwinding post, needle pricking cylinder mechanism and gap adjusting mechanism, the outer wall of support box is installed with unwinding post and penetrates, the outer wall of support box is installed with needle pricking cylinder mechanism and penetrates, and unwinding post and needle pricking cylinder mechanism all drive through servo motor, and the outer wall of support box is located at gap adjusting mechanism, the top of gap adjusting mechanism is installed with no.

Description

Technical Field

[0001] This utility model relates to the field of graphite thermal conductive film manufacturing technology, specifically to a device for removing abnormal air bubbles from graphite thermal conductive films. Background Technology

[0002] The calendering process is a crucial finishing step in the production of graphite thermal conductive films, and its quality directly determines the final grade of the product. Currently, some calendered graphite thermal conductive films retain large, difficult-to-eliminate air bubbles or exhibit abnormal bubbly fish-scale patterns on their surface. These defects often cannot be effectively eliminated even with traditional secondary calendering processes, leading to product downgrading or even scrapping. This severely restricts process yield and economic efficiency. Therefore, there is an urgent need for an effective technology and equipment to remove these specific abnormal air bubbles. However, existing graphite thermal conductive film de-bubble removal equipment does not consider the inability to physically puncture and vent large air bubbles and bubbly fish-scale patterns, thus failing to completely remove the gas inside the bubbles.

[0003] The existing defects in graphene thermal conductive film de-bubble removal equipment are as follows: Patent document CN206406557U discloses a graphene thermal conductive film application device, including a main frame and an electrical control box. A support plate is mounted on the main frame, a guide roller is mounted on the right side of the support plate, a PET release film unwinding roller is mounted below the right side of the guide roller, a steel roller is mounted above the steel roller, a rubber roller is mounted above the steel roller, and a take-up roller is mounted above the left side of the rubber roller. Both the PET release film unwinding roller and the take-up roller are connected to a motor, and the motor is electrically connected to the electrical control box. Compared with the prior art, this invention is specifically designed based on the flexible nature of graphene thermal conductive film, and it can eliminate air bubbles between the thermal conductive film and the PET release film, achieving a good application effect. However, this invention does not consider the problem that it cannot physically puncture and vent large individual air bubbles and bubble-like fish-scale patterns, thus failing to completely remove the gas inside the air bubbles.

[0004] In view of this, it is necessary to develop an abnormal bubble removal device for graphite thermal conductive film, so as to achieve physical puncture and degassing of large individual bubbles and bubble-like fish scale patterns, thus solving the problem that traditional pressure treatment cannot completely remove the gas inside the bubbles. Utility Model Content

[0005] The purpose of this invention is to provide a graphite thermal conductive film abnormal bubble removal device to solve the technical problem mentioned in the background art that large individual bubbles and bubble-like fish scale patterns cannot be physically punctured and degassed, and the gas inside the bubbles cannot be completely removed.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an abnormal bubble removal device for graphite thermal conductive film, comprising a support box, an unwinding column, a needle-punching roller mechanism, and a gap adjustment mechanism. The unwinding column is installed through the outer wall of the support box, and the needle-punching roller mechanism is installed through the outer wall of the support box. Both the unwinding column and the needle-punching roller mechanism are driven by servo motors. The gap adjustment mechanism is located on the outer wall of the support box, and a No. 1 rolling cylinder is installed on the top of the gap adjustment mechanism.

[0007] Preferably, the needle roller mechanism includes a second rolling cylinder, a needle tip, and a heating block. The needle tip is installed on the outer wall of the second rolling cylinder, the heating block is installed on the inner wall of the second rolling cylinder, a fan is installed on the inner wall of the second rolling cylinder, and a first opening is opened on the outer wall of the second rolling cylinder.

[0008] Preferably, the needle tip is made of hard alloy, and multiple needle tips are evenly distributed on the outer wall of the second rolling cylinder, with the fan located between the heating blocks.

[0009] Preferably, the gap adjustment mechanism includes a first support block, a first pillar, a first support cylinder, and a servo motor. The first support block is fixed to the outer wall of the support box, the first pillar is fixed to the inner wall of the first support block, the first support cylinder passes through the top of the first support block, a connecting column is installed through the inner wall of the first support cylinder, a sliding cylinder is installed on the outer wall of the first pillar, an elongated groove is opened on the outer wall of the first pillar, a limit post is installed on the outer wall of the connecting column, the servo motor is fixed to the inner wall of the first support block, a threaded rod is installed at the output end of the servo motor, a threaded sleeve is installed on the outer wall of the threaded rod, the threaded rod and the threaded sleeve move through a threaded engagement, and the outer wall of the connecting column is connected to the outer wall of the threaded sleeve.

[0010] Preferably, the limiting post moves within the long groove, and the connecting post moves with the support of the first support cylinder.

[0011] Preferably, multiple unwinding columns are provided.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model uses a second rotating drum to rotate the needle tip. At this time, the heating block is activated to heat the needle tip, and the fan is activated to draw air into the second rotating drum through the first port for uniform heating. Excess air is discharged through the second port. The heated needle tip improves efficiency when puncturing bubbles, enabling physical puncture and degassing of large bubbles and bubble-like fish scale patterns. This solves the problem that traditional pressure-based methods cannot completely expel the gas inside the bubbles. 2. This utility model incorporates a servo motor. The rotation of the servo motor drives the threaded rod to rotate, which in turn moves the threaded sleeve. The movement of the threaded sleeve moves the connecting column, which in turn moves the sliding cylinder. The movement of the sliding cylinder causes the connecting column to move, which in turn moves the limiting column. The movement of the limiting column then stably drives the first rolling cylinder to move, which in turn stably lifts the graphite thermal conductive film, thus achieving bubble removal from the graphite thermal conductive film. The gap adjustment mechanism ensures precise and controllable insertion depth, effectively venting air while maximizing the protection of the film's integrity. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a front view structural diagram of the present utility model; Figure 3 This is a schematic diagram of the structure of the No. 2 rolling cylinder of this utility model; Figure 4 This utility model Figure 2 Schematic diagram of Part A; Figure 5 This is a schematic diagram of the connecting column part of this utility model.

[0014] In the diagram: 1. Support box; 2. Unwinding column; 4. Second rolling drum; 5. First support block; 6. First rolling drum; 7. First support column; 8. Sliding cylinder; 9. Long groove; 10. First support cylinder; 11. Connecting column; 12. Limiting column; 13. Servo motor; 14. Threaded sleeve; 15. Threaded rod; 16. Heating block; 17. First port; 18. Fan; 19. Needle tip; 20. Second port. Detailed Implementation

[0015] 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.

[0016] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0017] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0018] Please see Figure 1 and Figure 2 An abnormal bubble removal device for graphite thermal conductive film includes a support box 1, an unwinding column 2, a needle-punching roller mechanism, and a gap adjustment mechanism. The unwinding column 2 and the needle-punching roller mechanism are both installed through the outer wall of the support box 1. Both the unwinding column 2 and the needle-punching roller mechanism are driven by a servo motor. The gap adjustment mechanism is located on the outer wall of the support box 1. A first rolling drum 6 is installed on the top of the gap adjustment mechanism. Multiple unwinding columns 2 are provided. The unwinding column 2 is used to carry and release the semi-finished graphite thermal conductive film roll with abnormal bubbles. The bubble removal device also includes a winding system, which is used to pull and wind up the graphite thermal conductive film after bubble removal treatment. The needle-punching roller mechanism is located between the unwinding column 2 and the winding system. During the operation of the graphite thermal conductive film, the second rolling drum 4 accurately punctures the large individual bubbles and bubble-like fish scale areas on its surface to form tiny exhaust channels. The rotation of the servo motor drives the needle-punching roller mechanism to rotate. The rotation of the roller mechanism ensures that the bubbles are effectively punctured while avoiding excessive damage to the film material.

[0019] Please see Figure 2 , Figure 3 and Figure 4The needle-piercing roller mechanism includes a second rolling cylinder 4, needle tips 19, and heating blocks 16. The needle tips 19 are installed on the outer wall of the second rolling cylinder 4, and the heating blocks 16 are installed on the inner wall of the second rolling cylinder 4. A fan 18 is installed on the inner wall of the second rolling cylinder 4. A first port 17 and a second port 20 are opened on the outer wall of the second rolling cylinder 4. The needle tips 19 are made of hard alloy, and multiple needle tips 19 are evenly distributed on the outer wall of the second rolling cylinder 4. The fan 18 is located between the heating blocks 16. When the second rolling cylinder 4 rotates, it drives the needle tips 19 to rotate. At this time, the heating blocks 16 are activated to heat the cylinder. At the same time, the fan 18 is activated to allow air to enter the second rolling cylinder 4 through the first port 17 for uniform heating. Excess air is discharged through the second port 20. After the needle tips 19 are heated, they improve efficiency when piercing bubbles, realizing physical piercing and degassing of large individual bubbles and bubble-like fish scale patterns, solving the problem that traditional pressure treatment cannot completely expel the gas inside the bubbles.

[0020] Please see Figure 2 and Figure 5 The gap adjustment mechanism includes a first support block 5, a first support column 7, a first support cylinder 10, and a servo motor 13. The first support block 5 is fixed to the outer wall of the support box 1, the first support column 7 is fixed to the inner wall of the first support block 5, the first support cylinder 10 passes through the top of the first support block 5, and a connecting column 11 is installed through the inner wall of the first support cylinder 10. A sliding cylinder 8 is installed on the outer wall of the first support column 7, and a long groove 9 is opened on the outer wall of the first support column 7. A limit post 12 is installed on the outer wall of the connecting column 11. The servo motor 13 is fixed to the inner wall of the first support block 5, and a threaded rod 15 is installed at the output end of the servo motor 13. A threaded sleeve 14 is installed on the outer wall of the threaded rod 15. The threaded rod 15 and the threaded sleeve 14 move through a threaded engagement, and the outer wall of the connecting column 11 and the outer wall of the threaded sleeve 14 are connected. The connection is achieved by the limiting post 12 moving within the long groove 9, and the connecting post 11 moving under the support of the first support cylinder 10. One end of the connecting post 11 is connected to the bottom of the first rolling cylinder 6. The servo motor 13 rotates, driving the threaded rod 15 to rotate. The rotation of the threaded rod 15 drives the threaded sleeve 14 to move. The movement of the threaded sleeve 14 drives the connecting post 11 to move. The movement of the connecting post 11 drives the slide cylinder 8 to move. The movement of the slide cylinder 8 causes the connecting post 11 to move. The movement of the connecting post 11 drives the limiting post 12 to move. The movement of the limiting post 12 causes the connecting post 11 to stably drive the first rolling cylinder 6 to move. The movement of the first rolling cylinder 6 stably lifts the graphite thermal conductive film, realizing the de-bubbling of the graphite thermal conductive film. The gap adjustment mechanism ensures that the insertion depth is precise and controllable, effectively venting air while maximizing the protection of the integrity of the film material.

[0021] Working Principle: The needle-punching roller mechanism is located between the unwinding column 2 and the winding system. During the operation of the graphite thermal conductive film, the second rolling drum 4 precisely punctures large individual bubbles and bubble-like fish-scale patterns on its surface, forming tiny exhaust channels. The servo motor rotates, driving the needle-punching roller mechanism to rotate. The rotation of the roller mechanism ensures that bubbles are effectively punctured while avoiding excessive damage to the film material. The rotation of the second rolling drum 4 drives the needle tip 19 to rotate. At this time, the heating block 16 is activated to heat the film. Simultaneously, the fan 18 starts to draw air into the second rolling drum 4 through the first port 17 for uniform heating. Excess air is discharged through the second port 20. The heated needle tip 19 improves efficiency when puncturing bubbles, achieving the desired effect for large individual bubbles. Physical puncture and degassing of bubbles and bubbly fish scale patterns solves the problem that traditional pressure treatment cannot completely remove the gas inside the bubbles. The rotation of servo motor 13 drives the threaded rod 15 to rotate, which in turn drives the threaded sleeve 14 to move. The movement of the threaded sleeve 14 drives the connecting column 11 to move, which in turn drives the slide cylinder 8 to move. The movement of the slide cylinder 8 causes the connecting column 11 to move, which in turn drives the limiting column 12 to move. The movement of the limiting column 12 causes the connecting column 11 to stably drive the first rolling cylinder 6 to move. The movement of the first rolling cylinder 6 stably lifts the graphite thermal conductive film, thus realizing the function of the graphite thermal conductive film degassing gap adjustment mechanism to ensure precise and controllable puncture depth, effectively degassing while maximizing the protection of the integrity of the film material.

[0022] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A device for removing air bubbles from a graphite thermally conductive film, comprising a support box (1), an unwinding column (2), a needle-punching roller mechanism, and a gap adjustment mechanism, characterized in that: A winding column (2) is installed through the outer wall of the support box (1), and a needle-punching roller mechanism is installed through the outer wall of the support box (1). Both the winding column (2) and the needle-punching roller mechanism are driven by a servo motor. The gap adjustment mechanism is located on the outer wall of the support box (1), and a No. 1 rolling cylinder (6) is installed on the top of the gap adjustment mechanism.

2. The abnormal bubble removal device for graphite thermal conductive film according to claim 1, characterized in that: The needle roller mechanism includes a second rolling cylinder (4), a needle tip (19), and a heating block (16). The needle tip (19) is installed on the outer wall of the second rolling cylinder (4), the heating block (16) is installed on the inner wall of the second rolling cylinder (4), the fan (18) is installed on the inner wall of the second rolling cylinder (4), a first opening (17) is opened on the outer wall of the second rolling cylinder (4), and a second opening (20) is opened on the outer wall of the second rolling cylinder (4).

3. The abnormal bubble removal device for graphite thermal conductive film according to claim 2, characterized in that: The needle tip (19) is made of hard alloy. Multiple needle tips (19) are evenly distributed on the outer wall of the second rolling cylinder (4). The fan (18) is located between the heating blocks (16).

4. The abnormal bubble removal device for graphite thermal conductive film according to claim 1, characterized in that: The gap adjustment mechanism includes a first support block (5), a first pillar (7), a first support cylinder (10), and a servo motor (13). The first support block (5) is fixed to the outer wall of the support box (1), the first pillar (7) is fixed to the inner wall of the first support block (5), the first support cylinder (10) passes through the top of the first support block (5), the inner wall of the first support cylinder (10) is connected by a connecting column (11), the outer wall of the first pillar (7) is fitted with a slide cylinder (8), the outer wall of the first pillar (7) is provided with a long groove (9), the outer wall of the connecting column (11) is fitted with a limit column (12), the servo motor (13) is fixed to the inner wall of the first support block (5), the output end of the servo motor (13) is fitted with a threaded rod (15), the outer wall of the threaded rod (15) is fitted with a threaded sleeve (14), the threaded rod (15) and the threaded sleeve (14) move through the threaded engagement, and the outer wall of the connecting column (11) is connected to the outer wall of the threaded sleeve (14).

5. The abnormal bubble removal device for graphite thermal conductive film according to claim 4, characterized in that: The limiting post (12) moves within the long groove (9), and the connecting post (11) moves under the support of the first support cylinder (10). One end of the connecting post (11) is connected to the bottom of the first rolling cylinder (6).

6. The abnormal bubble removal device for graphite thermal conductive film according to claim 1, characterized in that: The unwinding column (2) is provided in multiple ways.

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