Graphene film forming device with high applicability

Abstract

The utility model relates to the technical field of graphene film processing, the end part of the output shaft of a motor is connected with a driving shaft, the driving shaft is positioned on the inner side of a stable bracket to rotate, and the side end of the driving shaft is provided with an extrusion spiral blade, so that graphene melt liquid in an extrusion charging barrel is extruded into an extrusion head in a spiral extrusion manner; and meanwhile, in the extrusion process of the extrusion spiral blades, the rotation of the extrusion spiral blades is used for driving the melt liquid to turn over, so that the melt liquid can be further mixed before extrusion, the uniformity of all components in the melt liquid is ensured, the subsequent graphene film forming uniformity is improved, and the graphene film forming quality is improved. And by means of the outer sleeve, the heating cavity and the electric heating pipe, the auxiliary heating function can be provided outside the extrusion material barrel, so that the molten liquid keeps good fluidity, the molten liquid is prevented from being cooled and solidified in advance before extrusion, and the quality of a subsequently-formed graphene film is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of graphene film processing, specifically to a high applicability graphene film forming device. BACKGROUND

[0002] Graphene is a two-dimensional carbon nanomaterial with a hexagonal honeycomb lattice composed of carbon atoms in sp2 hybrid orbitals, and graphene has excellent optical, electrical and mechanical properties, and has important application prospects in material science, micro-nano processing, energy, biomedical and drug delivery, and is considered a revolutionary material in the future. In the production process of graphene film, a forming device is needed to form the graphene film. The graphene film forming device is a special equipment for manufacturing and processing graphene film, which can realize the rapid forming of graphene film and ensure the uniform thickness. The current graphene film forming device usually includes a box body, an extrusion mechanism and a cooling mechanism.

[0003] However, the extrusion mechanism of the current graphene film forming device mainly uses a flat plate extrusion method to extrude the graphene melt during the extrusion process, which causes the graphene melt to be in a relatively static state during extrusion, easily leading to uneven distribution of components inside the graphene melt, affecting the forming quality of the subsequent graphene film. SUMMARY

[0004] (I) Technical problems solved

[0005] In view of the shortcomings of the prior art, the utility model provides a high applicability graphene film forming device, which solves the problem that the extrusion mechanism of the current graphene film forming device mainly uses a flat plate extrusion method to extrude the graphene melt during the extrusion process, which causes the graphene melt to be in a relatively static state during extrusion, easily leading to uneven distribution of components inside the graphene melt, affecting the forming quality of the subsequent graphene film.

[0006] (II) Technical solutions

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a high applicability graphene film forming device, comprising a support frame, a support frame top fixedly installed with an extrusion barrel, the top of the extrusion barrel is provided with a hopper on both sides, the bottom of the extrusion barrel is connected with an extrusion head, the inner side of the support frame is rotatably connected with a forming roller symmetrically below the extrusion head, the top of the extrusion barrel is fixedly installed with a motor, the output shaft end of the motor is connected with a driving shaft, the inner side top of the extrusion barrel is fixedly installed with a stabilizing bracket, the driving shaft is rotatable on the inner side of the stabilizing bracket, and the edge end of the driving shaft is provided with a extrusion spiral blade.

[0008] The outer side of the extrusion barrel is sleeved with an outer sleeve, and a heating chamber is arranged between the outer sleeve and the outer wall of the extrusion barrel, and a plurality of groups of electric heating tubes are installed at equal angles on the inner side of the heating chamber. A cooling forming groove is installed at the bottom of the support frame, and a plurality of groups of conveying rollers are equidistantly connected to the inner side of the cooling forming groove, and a forming discharge groove is opened at one end of the cooling forming groove.

[0009] As a preferred technical solution of a graphene film forming device with high applicability of the utility model, the discharge end of the extrusion head is facing the middle of the two forming rollers, and the two forming rollers are connected by gears.

[0010] As an optimal technical solution for a graphene film forming device with high applicability of the utility model, the edge of the extrusion spiral blade fits tightly against the inner wall of the extrusion barrel, and a conical discharge pipe is provided at the bottom end of the extrusion barrel, and the extrusion head is connected to the end of the conical discharge pipe.

[0011] As an optimal technical solution of a graphene film forming device with high applicability of the utility model, an exhaust hole is opened on the top of the back side of the outer sleeve, and thermal insulation rock wool is bonded to the outside of the outer sleeve.

[0012] As a preferred technical solution of a graphene film forming device with high applicability of the utility model, a drainage groove is opened at the bottom of one side of the cooling and forming tank, and an interception box is provided at the bottom of the cooling and forming tank corresponding to the drainage groove. One end of the interception box is connected to a water pipe, and the end of the water pipe is connected to a circulation pump. The water outlet end of the water pipe is located at the top position of the cooling and forming tank and a water distribution box is installed. The side ends of the water distribution box are equidistantly connected to sprinkler heads.

[0013] The front and rear side ends of the cooling forming groove are evenly provided with metal heat sinks. A partition is provided inside the cooling forming groove on one side of the drainage groove. The top end of the partition is rotatably connected to a guide roller, and the inner side of the cooling forming groove is located on one side of the partition and is rotatably connected to two sets of cleaning cotton rollers in the vertical direction.

[0014] As an optimal technical solution for a graphene film forming device with high applicability of the utility model, the inner side of the interception box is slidably connected to an interception grid, and the spraying direction of the spray head is facing the interior of the cooling forming tank.

[0015] (3) Beneficial effects

[0016] Compared with the prior art, the present invention provides a graphene film forming device with high applicability, which has the following beneficial effects:

[0017] 1. The graphene melt in the extrusion barrel can be squeezed into the extrusion head in a spiral extrusion manner through the motor, the stabilizing bracket, the driving shaft and the extrusion spiral blade, so as to ensure the uniformity of the pressure when the melt is extruded. At the same time, during the extrusion process of the extrusion spiral blade, the rotation of the extrusion spiral blade is used to drive the melt to turn over, so that the melt can be further mixed before extrusion, thereby ensuring the uniformity of the components inside the melt and improving the uniformity of subsequent graphene film forming. In addition, the outer sleeve, heating chamber and electric heating tube arranged on the outside of the extrusion barrel can provide auxiliary heating function on the outside of the extrusion barrel, and the heat generated by the electric heating tube is used to auxiliary heat the melt inside the extrusion barrel, so that the melt maintains good fluidity and avoids premature cooling and solidification before extrusion, thereby ensuring the quality of the subsequently formed graphene film.

[0018] 2. The cooling water in the cooling molding tank can be circulated through the drainage trough, interception box, water pipe, circulation pump, water distribution box and sprinkler head, so that the cooling water can effectively cool the molded graphene film during the circulation process and ensure the uniformity of the cooling of the graphene film. At the same time, the metal heat sink can quickly dissipate the heat carried by the cooling water in the cooling molding tank after absorbing heat, thereby reducing the temperature of the cooling water as a whole and improving its actual cooling effect. In addition, two sets of cleaning cotton rollers are arranged to rotate inside one side of the cooling molding tank, so that the molded graphene film can pass through the inner side of the two sets of cleaning cotton rollers before being discharged from the molding, so as to facilitate the wiping of moisture on the surface of the graphene film and keep the surface of the graphene film clean. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural diagram of the present utility model.

[0020] Figure 2 It is a structural diagram of the outer sleeve of the utility model.

[0021] Figure 3 It is a structural schematic diagram of the extruded spiral blade of the utility model.

[0022] Figure 4 It is a structural diagram of the circulation pump of the utility model.

[0023] Figure 5 It is a structural schematic diagram of the cleaning cotton roller of the utility model.

[0024] In the figure: 1. Support frame; 2. Extrusion barrel; 3. Hopper; 4. Extrusion head; 5. Forming roller; 6. Motor; 7. Stabilizing bracket; 8. Drive shaft; 9. Extrusion spiral blade; 10. Outer sleeve; 11. Heating chamber; 12. Electric heating pipe; 13. Cooling forming trough; 14. Conveyor roller; 15. Drain trough; 16. Intercepting box; 17. Water pipe; 18. Circulation pump; 19. Water distribution box; 20. Sprinkler head; 21. Metal heat sink; 22. Partition; 23. Guide roller; 24. Cleaning cotton roller; 25. Forming discharge trough. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example

[0026] See also Figure 1-5 The utility model provides the following technical solutions: a graphene film forming device with high applicability, comprising a support frame 1, an extrusion barrel 2 is fixedly installed on the top of the support frame 1, hoppers 3 are provided on both sides of the top of the extrusion barrel 2, the bottom discharge end of the extrusion barrel 2 is connected to an extrusion head 4, the inner side of the support frame 1 is located below the extrusion head 4 and is rotatably connected to symmetrically arranged forming rollers 5, the discharge end of the extrusion head 4 is facing the middle of the two forming rollers 5, the two forming rollers 5 are connected by gears, and the graphene film to be formed is passed through the inner sides of the two forming rollers 5 to facilitate the forming of the graphene film. 2 is fixedly installed with a motor 6, the output shaft end of the motor 6 is connected to a drive shaft 8, a stabilizing bracket 7 is fixedly installed on the inner top of the extrusion barrel 2, the drive shaft 8 is located inside the stabilizing bracket 7 and rotates, and an extrusion spiral blade 9 is provided at the edge of the drive shaft 8, the edge of the extrusion spiral blade 9 is tightly fitted with the inner wall of the extrusion barrel 2, and a tapered discharge pipe is provided at the bottom end of the extrusion barrel 2, and the extrusion head 4 is connected to the end of the tapered discharge pipe. The rotation of the extrusion spiral blade 9 is used to extrude the graphene melt in the extrusion barrel 2 into the extrusion head 4 in a spiral extrusion manner, thereby ensuring the uniformity of pressure during the extrusion of the melt;

[0027] An outer sleeve 10 is sleeved on the outer side of the extrusion barrel 2, and an exhaust hole is provided on the top of the back side of the outer sleeve 10, and thermal insulation rock wool is bonded to the outer side of the outer sleeve 10 to facilitate exhaust and improve the thermal insulation ability of the outer sleeve 10 itself, prevent heat loss, and avoid the graphene melt from cooling and solidifying in advance before extrusion. A heating chamber 11 is provided between the outer sleeve 10 and the outer wall of the extrusion barrel 2, and several groups of electric heating pipes 12 are installed at equal angles on the inner side of the heating chamber 11. A cooling molding groove 13 is installed at the bottom of the support frame 1, and several groups of conveying rollers 14 are equidistantly connected to the inner side of the cooling molding groove 13, and a molding discharge groove 25 is provided at one end of the cooling molding groove 13.

[0028] A drainage groove 15 is provided at the bottom of one side of the cooling and forming tank 13. An interception box 16 is provided at the bottom of the cooling and forming tank 13 corresponding to the drainage groove 15. One end of the interception box 16 is connected to a water pipe 17. The end of the water pipe 17 is connected to a circulation pump 18. The water outlet end of the water pipe 17 is located at the top of the cooling and forming tank 13 and a water distribution box 19 is installed. The side ends of the water distribution box 19 are equidistantly connected to spray heads 20. The inner side of the interception box 16 is slidably connected to an interception grid. The spraying direction of the spray head 20 is facing the interior of the cooling and forming tank 13, which is convenient for intercepting and filtering the cooling water through the interception box 16, and the formed graphene film can be cooled by the cooling water during the circulation process.

[0029] Metal heat sinks 21 are evenly arranged on the front and rear side ends of the cooling forming groove 13. A partition 22 is provided inside the cooling forming groove 13 on one side of the drainage groove 15. The top end of the partition 22 is rotatably connected to a guide roller 23, and the inner side of the cooling forming groove 13 is located on one side of the partition 22 and is rotatably connected to two sets of cleaning cotton rollers 24 in the vertical direction.

[0030] The working principle and use process of the utility model are as follows: during the graphene film forming process, the graphene melt is first added into the extrusion barrel 2 by using the hopper 3, and then the electric heating tube 12 in the heating chamber 11 is started. The outer sleeve 10, the heating chamber 11 and the electric heating tube 12 arranged outside the extrusion barrel 2 can provide auxiliary heating function outside the extrusion barrel 2, and the heat generated by the electric heating tube 12 is used to auxiliary heat the melt inside the extrusion barrel 2, so that the melt maintains good fluidity and avoids premature cooling and solidification before extrusion, thereby ensuring the quality of the subsequently formed graphene film;

[0031] Then the driving shaft 8 and the extrusion spiral blade 9 are driven to rotate by the motor 6, the stable support 7 ensures the stability of the rotation of the extrusion spiral blade 9, the graphene melt liquid in the extrusion barrel 2 is extruded into the extrusion head 4 in a spiral extrusion manner by the rotation of the extrusion spiral blade 9, the uniformity of the pressure during the extrusion of the melt liquid is ensured, and in the extrusion process of the extrusion spiral blade 9, the melt liquid is stirred by the rotation of the extrusion spiral blade 9, so that the melt liquid can be further mixed before being extruded, the uniformity of the components in the melt liquid is ensured, and the uniformity of the subsequent graphene film forming is improved.

[0032] After the graphene melt liquid is extruded through the extrusion head 4, the graphene film to be formed passes through the inside of the two forming rollers 5, and enters the cooling forming groove 13, and the graphene film is guided and conveyed by the conveying roller 14 and the guide roller 23, and when the graphene film enters the cooling forming groove 13, the water circulation mechanism composed of the drain groove 15, the interception box 16, the water pipe 17, the circulating pump 18, the water distribution box 19 and the spray head 20 can circulate the cooling water in the cooling forming groove 13, so that the cooling water can effectively cool the formed graphene film during circulation, and the uniformity of the cooling of the graphene film is ensured, and the adaptability of the cooling forming groove 13 is ensured.

[0033] The metal heat sink 21 can quickly dissipate the heat carried by the cooling water after the cooling water absorbs heat in the cooling forming groove 13, so as to reduce the temperature of the cooling water as a whole, improve the actual cooling effect, and after the graphene film is cooled and solidified, the two groups of cleaning cotton rollers 24 rotatingly arranged in the side of the cooling forming groove 13 are used, so that the formed graphene film can pass through the inside of the two groups of cleaning cotton rollers 24 before being formed and discharged, so as to wipe off the water on the surface of the graphene film, and keep the surface of the graphene film clean.

[0034] Finally, it should be noted that: the above only describes the preferred embodiments of the present application, and is not used to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A graphene film forming device with high applicability, comprising a support frame (1), characterized in that: An extrusion barrel (2) is fixedly mounted on the top of the support frame (1), hoppers (3) are provided on both sides of the top of the extrusion barrel (2), the bottom discharge end of the extrusion barrel (2) is connected to an extrusion head (4), and a symmetrically arranged forming roller (5) is rotatably connected to the inner side of the support frame (1) below the extrusion head (4), a motor (6) is fixedly mounted on the top of the extrusion barrel (2), the output shaft end of the motor (6) is connected to a drive shaft (8), a stabilizing bracket (7) is fixedly mounted on the inner top of the extrusion barrel (2), the drive shaft (8) is located inside the stabilizing bracket (7) and rotates, and an extrusion spiral blade (9) is provided at the edge of the drive shaft (8); The outer side of the extrusion barrel (2) is sleeved with an outer sleeve (10), and a heating chamber (11) is provided between the outer sleeve (10) and the outer wall of the extrusion barrel (2), and a plurality of groups of electric heating tubes (12) are installed at equal angles on the inner side of the heating chamber (11). A cooling molding groove (13) is installed at the bottom of the support frame (1), and a plurality of groups of conveying rollers (14) are connected to the inner side of the cooling molding groove (13) at equal intervals, and a molding discharge groove (25) is provided at one end of the cooling molding groove (13).

2. The graphene film forming device with high applicability according to claim 1, characterized in that: The discharge end of the extrusion head (4) faces the middle of the two forming rollers (5), and the two forming rollers (5) are connected by gears.

3. The graphene film forming device with high applicability according to claim 1, characterized in that: The edge of the extrusion spiral blade (9) is tightly fitted with the inner wall of the extrusion barrel (2), and a conical discharge pipe is provided at the bottom end of the extrusion barrel (2), and the extrusion head (4) is connected to the end of the conical discharge pipe.

4. The graphene film forming device with high applicability according to claim 1, characterized in that: An exhaust hole is provided on the top of the back side of the outer sleeve (10), and thermal insulation rock wool is bonded to the outside of the outer sleeve (10).

5. The graphene film forming device with high applicability according to claim 1, characterized in that: A drainage groove (15) is provided at the bottom of one side of the cooling forming trough (13), and an interception box (16) is provided at the bottom of the cooling forming trough (13) corresponding to the drainage groove (15). One end of the interception box (16) is connected to a water pipe (17), and the end of the water pipe (17) is connected to a circulation pump (18), and a water distribution box (19) is installed at the water outlet end of the water pipe (17) at the top position of the cooling forming trough (13), and the side ends of the water distribution box (19) are equidistantly connected to spray heads (20); Metal heat sinks (21) are evenly arranged on both the front and rear side ends of the cooling forming groove (13), a partition (22) is arranged inside the cooling forming groove (13) on one side of the drainage groove (15), the top end of the partition (22) is rotatably connected to a guide roller (23), and the inner side of the cooling forming groove (13) is located on one side of the partition (22) and is rotatably connected to two groups of cleaning cotton rollers (24) in the vertical direction.

6. The graphene film forming device with high applicability according to claim 5, characterized in that: The inner side of the interception box (16) is slidably connected to an interception grid, and the spraying direction of the spray head (20) faces the inside of the cooling molding groove (13).

Images