Special coating machine for graphene heat-conducting film

Abstract

The utility model belongs to the technical field of graphene material production, and discloses a special coating machine for a graphene heat-conducting film, which comprises side plates fixedly arranged on the two sides of the upper end of a collecting plate, sliding plates are movably inserted into slots in the middles of the upper ends of the two side plates, and the two sliding plates are rotatably provided with lower rollers for coating the film. An upper roller for coating a film is rotationally arranged between the two side plates, and the lower roller corresponds to the upper roller; a motor used for driving the upper roller to rotate is fixed to one side of one sliding plate, rigid guide pipes are fixed to one ends of the side plates and the sliding plates in a penetrating mode, and the two rigid guide pipes extend into an inner cavity of the lower roller and an inner cavity of the upper roller correspondingly. In conclusion, the device has the advantages that the coating distance is long, the liquid graphene is easy to control, and the consumption of the liquid graphene is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of graphene material production, in particular to a special coating machine for graphene thermal conductive films. Background Art

[0002] Coating machines are mainly used for surface coating production of films, paper, etc. This machine coats the rolled substrate with a layer of glue, paint or ink with specific functions, dries it and rewinds it. Graphene thermal conductive film requires a coating machine for coating during the production process.

[0003] Existing graphene thermal conductive film coating machines usually pour liquid graphene on the surface of the film and scrape it with a scraper during coating. This operation causes the liquid graphene to flow toward both sides or one side and cannot be precisely controlled, resulting in a short coating distance and a large amount of liquid graphene wasted. Utility Model Content

[0004] In order to solve the problems raised in the above background technology, the utility model provides a special coating machine for graphene thermal conductive film, which has the advantages of long coating distance, easy control of liquid graphene and reduced liquid graphene consumption.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a special coating machine for graphene thermal conductive film, comprising side plates fixedly arranged on both sides of the upper end of a collecting plate, two side plates having slide plates movably inserted in slots in the middle of the upper ends thereof, the two slide plates being rotatably provided with lower rollers for coating the film, an upper roller for coating the film being rotatably arranged between the two side plates, the lower roller corresponding to the upper roller;

[0006] A motor for driving the upper roller to rotate is fixed on one side of the slide plate, and a rigid conduit is fixed through the side plate and one end of the slide plate, and the two rigid conduits extend into the inner cavities of the lower roller and the upper roller respectively.

[0007] Preferably, a plurality of through holes for discharging liquid graphene are equally spaced around the surface of the lower drum and the upper drum.

[0008] Preferably, the lower roller and the upper roller are both fixed with a rotating shaft in the middle of one side of the motor, the rotating shaft of the lower roller is movably interlaced with one of the side plates thereof, and the rotating shaft of the upper roller is movably interlaced with one of the slide plates thereof.

[0009] Preferably, a sealed bearing is embedded in the middle of the lower drum and the upper drum on a side away from the motor, and the rigid conduit passes through the middle of the sealed bearing and is fixed.

[0010] Preferably, the output shaft of the motor movably passes through the slide plate and a small gear is fixed at the end thereof, and a large gear meshing with the small gear is sleeved and fixed on the middle of the rotating shaft on one side of the upper roller.

[0011] Preferably, both sides of the upper ends of the two side plates are provided with limiting holes, both sides of the two slide plates are threadedly provided with bolts, and the lower ends of the bolts are fixed with round bosses located inside the limiting holes.

[0012] Preferably, fastening nuts threadedly connected to the bolts are provided on the upper ends of the surfaces of both sides of the slide plate.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] 1. Liquid graphene is gathered in the upper roller and / or the lower roller and extruded through the through holes onto the film surface to achieve a coating effect. As the upper roller and / or the lower roller rotate, one or both sides of the film can be coated to achieve continuous operation. In summary, the device has the advantages of long coating distance, easy control of liquid graphene and reduced liquid graphene consumption. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 2 This is a schematic diagram of the overall axonometric rear view structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the sealed bearing of the utility model;

[0018] Figure 4 This is a schematic diagram of the separation of the slide plate and the slot of the utility model;

[0019] Figure 5 It is a cross-sectional schematic diagram of the limiting hole of the utility model.

[0020] In the figure: 1, collecting plate; 2, side plate; 3, lower roller; 4, upper roller; 5, large gear; 6, rotating shaft; 7, motor; 8, slide plate;

[0021] 9. Rigid conduit; 10. Sealed bearing; 11. Through hole; 12. Limit hole; 13. Slot; 14. Bolt; 15. Fastening nut;

[0022] 16. Round boss; 17. Pinion gear. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] like Figures 1 to 5 As shown, the utility model provides a special coating machine for graphene thermal conductive film, including side plates 2 fixedly arranged on both sides of the upper end of a collecting plate 1, slots 13 are opened in the middle of the upper ends of the two side plates 2, and slide plates 8 are movably inserted in the two slots 13, and lower rollers 3 for coating the film are rotatably arranged on the two slide plates 8, and upper rollers 4 for coating the film are rotatably arranged between the two side plates 2, and the upper rollers 4 and the lower rollers 3 are used to clamp the film and thus achieve the coating effect, and the lower rollers 3 correspond to the upper rollers 4, and a plurality of through holes 11 for discharging liquid graphene are equidistantly arranged around the surfaces of the lower rollers 3 and the upper rollers 4. It should be noted that the user can make the lower rollers 3 or the upper rollers 4 discharge liquid graphene as needed to achieve double-sided or single-sided coating of the film.

[0025] A groove is provided at the upper end of the collecting plate 1 to collect excess liquid graphene for reuse. At the same time, a discharge port is provided at the bottom of the collecting plate 1 to discharge the liquid graphene for reuse.

[0026] A motor 7 for driving the upper roller 4 to rotate is fixed on one side of the slide 8. The output shaft of the motor 7 movably passes through the slide 8, and a pinion 17 is fixed at the end of the motor 7. The pinion 17 is located between the upper roller 4 and the slide 8. A large gear 5 is fixed in the middle of the rotating shaft 6 on one side of the upper roller 4. The large gear 5 meshes with the pinion 17 to achieve transmission. Rigid conduits 9 are fixed through one end of the side plate 2 and the slide 8. One end of the two rigid conduits 9 extends to the inner cavity of the lower roller 3 and the inner cavity of the upper roller 4 respectively. The other ends of the two rigid conduits 9 extend to the outside and are connected to the external liquid graphene pumping device, thereby achieving continuous pumping of liquid graphene and gathering inside the upper roller 4 and the lower roller 3.

[0027] The lower roller 3 is located at the middle of one side of the motor 7 and the upper roller 4 is located at the middle of one side of the motor 7. The rotating shaft 6 of the lower roller 3 and its one side plate 2 are interlaced and rotated, and the rotating shaft 6 of the upper roller 4 and its one slide plate 8 are interlaced and rotated. The middle of the lower roller 3 and the upper roller 4 away from the motor 7 are embedded and fixed with the outer ring of the sealed bearing 10, and the rigid conduit 9 passes through the inner ring of the sealed bearing 10 and is fixed. The sealed bearing 10 is a prior art, including an outer ring, an inner ring, and a roller. At the same time, even if there is a slight leakage of the sealed bearing 10, it will not affect the coating use of the device, and the leaked liquid graphene will flow to the collection plate 1 for reuse.

[0028] Limiting holes 12 are provided on both sides of the upper ends of the two side panels 2, and bolts 14 are threadedly arranged on both sides of the two slide plates 8. A round boss 16 is fixed to the lower end of the bolt 14. The round boss 16 is located inside the limiting hole 12 and rotates to limit the circular boss 16 to prevent the circular boss 16 from separating from the limiting hole 12. Fastening nuts 15 threadedly arranged with the bolts 14 are arranged on the upper ends of the surfaces of both sides of the slide plate 8.

[0029] The two slides 8 are located on one side of the motor 7 and are both etched with scale lines, which are located inside the slot 13. At the same time, the edge line of the upper end surface of the side plate 2 is used for indication, so that the height of the slide 8 can be read, which is the same as the distance between the upper roller 4 and the lower roller 3.

[0030] Among them, the device also includes structures such as switches, power supplies, controllers and microcomputers, which are not the main technologies and will not be described in detail. At the same time, the motor 7 is preferably a reduction motor.

[0031] Principle and process of this utility model:

[0032] During single-sided coating, the user inserts the film between the upper roller 4 and the lower roller 3. Subsequently, the user rotates the bolt 14 through the sleeve tool to drive the circular boss 16 to rotate inside the limiting hole 12. The bolt 14 rotates on both sides of the slide plate 8 and drives the slide plate 8 to move longitudinally inside the slot 13. Then, the upper roller 4 is driven to move longitudinally through the rotating shaft 6 and the rigid guide tube 9, and the distance between the upper roller 4 and the lower roller 3 is adjusted to adjust the thickness of the liquid graphene on the film surface. Subsequently, the user rotates the tightening nut 15 with a wrench to lock the bolt 14 to prevent loosening from affecting the coating accuracy.

[0033] Subsequently, the external pumping device transports the liquid graphene to the interior of the rigid conduit 9 through a pipeline. Subsequently, the rigid conduit 9 transports the liquid graphene to the interior of the upper drum 4 and gathers it. It should be noted that the diameter of the through hole 11 needs to be set smaller so that the liquid graphene can be discharged under pressure to avoid excessive outflow under normal conditions.

[0034] Subsequently, the switch provided on the device is turned on to power on the device, and the microprocessor generates a signal to the controller. The controller transmits electricity through wires to control the operation of the motor 7. The small gear 17 driven by the output shaft of the motor 7 rotates, thereby driving the large gear 5 to rotate. The large gear 5 drives the rotating shaft 6 to rotate, thereby driving the upper roller 4 to rotate slowly. Since the rigid conduit 9 is a hard steel pipe, it can support the upper roller 4. At the same time, under the action of the sealed bearing 10, the outer ring of the sealed bearing 10 is driven to rotate by the upper roller 4. This arrangement can provide driving force for the movement of the membrane. At the same time, the liquid graphene inside the upper roller 4 is squeezed out from the through hole 11 and then contacts and adheres to the membrane surface. Since the distance between each through hole 11 is small, the liquid graphene can be distributed on the membrane surface in the form of small dots, and at the same time, they can contact and fuse with each other to form a liquid surface, thereby achieving a coating effect.

[0035] When coating is required on both sides of the film, liquid graphene is squeezed out of the through hole 11 of the lower roller 3. Since the squeezed liquid graphene has a small volume, it will not drip under the action of gravity. When mixing the liquid graphene, attention should also be paid to the concentration.

[0036] In summary, the device has the advantages of long coating distance, easy control of liquid graphene and reduced liquid graphene consumption.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A special coating machine for graphene thermal conductive film, characterized in that: It comprises side plates (2) fixedly arranged on both sides of the upper end of the collecting plate (1), a slide plate (8) movably inserted into a slot (13) in the middle of the upper end of the two side plates (2), a lower roller (3) for coating the film rotatably arranged on the two slide plates (8), an upper roller (4) for coating the film rotatably arranged between the two side plates (2), and the lower roller (3) corresponds to the upper roller (4); A motor (7) for driving the upper roller (4) to rotate is fixed on one side of the slide plate (8), and a rigid conduit (9) is fixed through one end of the side plate (2) and the slide plate (8), and the two rigid conduits (9) extend into the inner cavities of the lower roller (3) and the upper roller (4), respectively.

2. The graphene thermal conductive film coating machine according to claim 1, characterized in that: The lower roller (3) and the upper roller (4) are provided with a plurality of through holes (11) for discharging liquid graphene at equal intervals around the surface.

3. The graphene thermal conductive film coating machine according to claim 1, characterized in that: The lower roller (3) and the upper roller (4) are both fixed with a rotating shaft (6) in the middle of one side of the motor (7); the rotating shaft (6) of the lower roller (3) and one of the side plates (2) thereof are movably interlaced, and the rotating shaft (6) of the upper roller (4) and one of the slide plates (8) thereof are movably interlaced.

4. The graphene thermal conductive film coating machine according to claim 1, characterized in that: A sealed bearing (10) is embedded in the middle of the lower roller (3) and the upper roller (4) on the side away from the motor (7), and the rigid conduit (9) passes through the middle of the sealed bearing (10) and is fixed.

5. The graphene thermal conductive film coating machine according to claim 1, characterized in that: The output shaft of the motor (7) movably passes through the slide plate (8) and a small gear (17) is fixed at the end thereof. A large gear (5) meshing with the small gear (17) is sleeved and fixed in the middle of the rotating shaft (6) on one side of the upper roller (4).

6. The graphene thermal conductive film coating machine according to claim 1, characterized in that: Limiting holes (12) are provided on both sides of the upper ends of the two side plates (2), bolts (14) are threadedly provided on both sides of the two slide plates (8), and a circular boss (16) located inside the limiting hole (12) is fixed at the lower end of the bolt (14).

7. The graphene thermal conductive film coating machine according to claim 1, characterized in that: The upper ends of the surfaces of both sides of the slide plate (8) are provided with fastening nuts (15) threadedly arranged with the bolts (14).

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