Multilayer graphene composite film production line

Abstract

This invention discloses a coating, winding, and hot-pressing production line for processing multilayer graphene films, relating to the field of graphene film processing equipment, including a coating mechanism, a winding mechanism, and an extrusion mechanism. The winding mechanism of this invention is equipped with an air pump, a take-up rod, a first hollow rod, a second hollow rod, air bladders, and ventilation holes. Before winding the graphene film, the air pump inflates the first hollow rod, causing the two air bladders to expand. The graphene film coated with the coating is then wound onto the two air bladders. A drive assembly rotates the take-up rod, further winding the graphene film onto the two air bladders. When the required thickness of the graphene film wound onto the air bladders is achieved, the graphene film is cut, and the air inside the air bladders is released. The contracted air bladders separate from the rolled graphene film, facilitating the removal of the rolled graphene film from the two second hollow rods.

Description

Technical Field

[0001] This invention relates to the field of graphene film processing equipment, and more particularly to a multilayer graphene composite film production line. Background Technology

[0002] During the production and processing of graphene films, a spraying process is carried out to coat the rolled graphene film with a layer of specific functional adhesive, coating or ink, and then dry and rewind it to give the graphene film more functions.

[0003] The preparation of multilayer graphene composite films typically involves coating the graphene film, cutting it, and then manually stacking it. This process is labor-intensive and inefficient. Summary of the Invention

[0004] The purpose of this invention is to provide a multilayer graphene composite film production line for the efficient preparation of multilayer graphene composite films.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A multilayer graphene composite film production line includes: a coating mechanism for coating a graphene film with a coating material; a winding mechanism for winding the coated graphene film into a roll, which includes: a second mounting frame; a winding rod, the winding rod including a first hollow rod, the first hollow rod passing through and rotatably connected to the second mounting frame, two second hollow rods fixedly connected to the first hollow rod, an air bladder sleeved on the second hollow rod, and a vent hole communicating with the interior of the air bladder on the second hollow rod; an air pump, mounted on the second mounting frame, the air outlet pipe of which is rotatably connected to the first hollow rod; a drive assembly for driving the winding rod to rotate; and an extrusion mechanism for extruding the rolled graphene film.

[0007] Preferably, the drive assembly includes: a third motor mounted on one side of the second mounting bracket; a drive gear fixedly sleeved on the power output shaft of the third motor; and a driven gear fixedly sleeved on the first hollow rod and meshing with the drive gear.

[0008] Preferably, the coating mechanism includes: a first mounting frame; a coating roller rotatably mounted in the first mounting frame; a conveying roller rotatably mounted in the first mounting frame; a first motor mounted on one side of the first mounting frame, with its power output shaft fixedly connected to the coating roller; a second motor mounted on one side of the first mounting frame, with its power output shaft fixedly connected to the conveying roller; and a paint hopper fixedly connected to the first mounting frame, with the outlet of the paint hopper located directly above the coating roller.

[0009] Preferably, the extrusion mechanism includes: a third mounting bracket; a hydraulic cylinder, which is mounted through the top surface of the third mounting bracket; and a pressure plate, the upper surface of which is fixedly connected to the extension end of the hydraulic cylinder.

[0010] Preferably, the extrusion mechanism further includes a plurality of third support legs, the upper ends of which are fixedly connected to the bottom surface of the third mounting bracket.

[0011] Preferably, the winding mechanism further includes a plurality of second support legs, the upper ends of which are fixedly connected to the bottom surface of the second mounting bracket.

[0012] Preferably, the coating mechanism further includes a plurality of first support legs, the upper ends of which are fixedly connected to the bottom surface of the first mounting frame.

[0013] Preferably, it also includes a hot air device that outputs hot air to the winding mechanism (200), the hot air temperature being 100-150°C.

[0014] Preferably, it further includes an electrolysis device located between the winding mechanism (200) and the extrusion mechanism (300), the electrolysis device comprising:

[0015] An electrolytic cell containing a copper sulfate solution with a concentration of 0.1-2 mol / L;

[0016] The anode is located in the electrolytic cell;

[0017] A cathode chuck is used to hold the composite film wound by the winding mechanism (200).

[0018] Preferably, the pressure plate (303) is made of graphite and is connected to a power source to heat the pressure plate (303).

[0019] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0020] 1. The winding mechanism in this invention comprises an air pump, a take-up rod, a first hollow rod, a second hollow rod, air bladders, and ventilation holes. Before winding the graphene film, the air pump inflates the first hollow rod, causing the two air bladders to expand. The graphene film coated with the coating is then wound onto the two air bladders. The take-up rod is then rotated by a drive assembly, further winding the graphene film onto the two air bladders. When the thickness of the graphene film wound onto the air bladders reaches the required level, the graphene film is cut, and the air inside the air bladders is released. The shrunken air bladders separate from the rolled graphene film, making it easy to remove the rolled graphene film from the two second hollow rods.

[0021] 2. The extrusion mechanism in this invention is provided with a third mounting frame, a hydraulic cylinder and a pressure plate. By placing the rolled graphene film on the inner bottom surface of the third mounting frame, the hydraulic cylinder is activated to drive the pressure plate to move downward, so that the pressure plate cooperates with the third mounting frame to flatten the rolled graphene film to form a multilayer graphene film. Attached Figure Description

[0022] Figure 1 This invention provides a three-dimensional coating, winding, and hot-pressing production line. Figure 1 ;

[0023] Figure 2 This invention provides a three-dimensional coating, winding, and hot-pressing production line. Figure 2 ;

[0024] Figure 3 This is a perspective view of the coating mechanism in this invention;

[0025] Figure 4 For the present invention Figure 2 Enlarged schematic diagram of the driving components in the diagram;

[0026] Figure 5 This is a schematic diagram of the internal structure of the winding rod in this invention;

[0027] Figure 6 This is a schematic diagram of the coating mechanism and winding mechanism of the present invention during operation;

[0028] Reference numerals: 100, Coating mechanism; 101, First mounting frame; 102, Coating roller; 103, Conveying roller; 104, First motor; 105, Second motor; 106, Paint hopper; 107, First support leg; 200, Winding mechanism; 201, Second mounting frame; 202, Second support leg; 203, Air pump; 210, Rewinding rod; 211, First hollow rod; 212, Second hollow rod; 213, Airbag; 214, Vent hole; 220, Drive assembly; 221, Third motor; 222, Drive gear; 223, Driven gear; 300, Extrusion mechanism; 301, Third mounting frame; 302, Hydraulic cylinder; 303, Pressure plate; 304, Third support leg. Detailed Implementation

[0029] To make the technical means, creative features, achieved objectives, and effects of this invention easier to understand, the invention is further described below with reference to specific embodiments and accompanying drawings. However, the following embodiments are merely preferred embodiments of this invention and not all embodiments. Other embodiments obtained by those skilled in the art based on the embodiments described herein without creative effort are all within the protection scope of this invention.

[0030] The graphene mentioned in this invention refers to a class of materials, including graphene oxide, reduced graphene oxide, and fully reduced graphene materials.

[0031] The coating mechanism described in this invention can coat various functional or non-functional coatings, including but not limited to polystyrene (PS) slurry.

[0032] Specific embodiments of the present invention are described below with reference to the accompanying drawings.

[0033] Example 1

[0034] like Figure 1 - Figure 6 As shown, a coating, winding, and hot pressing production line for processing multilayer graphene films includes a coating mechanism 100, a winding mechanism 200, and an extrusion mechanism 300.

[0035] like Figure 1 - Figure 3 As shown, the coating mechanism 100 is used to coat a graphene film with a coating material. The coating mechanism 100 includes a first mounting frame 101, a coating roller 102, a conveying roller 103, a first motor 104, a second motor 105, a coating hopper 106, and multiple first support legs 107. The coating hopper 106 is used to hold the coating material, such as polystyrene (PS) slurry (PS microspheres with a particle size of 50-1000 nm).

[0036] The coating roller 102 is rotatably mounted inside the first mounting frame 101; the conveying roller 103 is rotatably mounted inside the first mounting frame 101; the first motor 104 is mounted on one side of the first mounting frame 101, and the power output shaft of the first motor 104 is fixedly connected to the coating roller 102; the second motor 105 is mounted on one side of the first mounting frame 101, and the power output shaft of the second motor 105 is fixedly connected to the conveying roller 103.

[0037] The paint hopper 106 is fixedly connected to the first mounting frame 101, and the outlet of the paint hopper 106 is located directly above the coating roller 102. The upper ends of the plurality of first support legs 107 are all fixedly connected to the bottom surface of the first mounting frame 101.

[0038] Specifically, the graphene film is passed between the coating roller 102 and the conveying roller 103 from bottom to top, and then the coating material is added into the coating hopper 106, so that the coating material flows from the outlet of the coating hopper 106 onto the coating roller 102. Then, by starting the first motor 104 and the second motor 105, when the second motor 105 rotates, its power output shaft will drive the conveying roller 103 to rotate, and the rotating conveying roller 103 will move the graphene film; when the first motor 104 is running, it will drive the coating roller 102 to rotate, and the rotating coating roller 102 will coat the graphene film with the coating material on its own surface.

[0039] like Figure 1 , Figure 2 and Figure 4 - Figure 6 As shown, the winding mechanism 200 is used to wind a graphene film coated with paint into a roll. The winding mechanism 200 includes a second mounting frame 201, a winding rod 210, an air pump 203, a drive assembly 220, and a plurality of second support legs 202.

[0040] The second mounting bracket 201 is L-shaped. The winding rod 210 includes a first hollow rod 211, which passes through and is rotatably connected to the second mounting bracket 201. Two second hollow rods 212 are fixedly connected to the first hollow rod 211. An airbag 213 is sleeved on the second hollow rod 212, and a vent hole 214 communicating with the interior of the airbag 213 is opened on the second hollow rod 212. The first hollow rod 211, the second hollow rod 212, and the interior of the airbag 213 are connected. An air pump 203 is mounted on the second mounting bracket 201, and the air outlet pipe of the air pump 203 is rotatably connected to the first hollow rod 211.

[0041] The drive assembly 220 is used to drive the winding rod 210 to rotate; the drive assembly 220 includes a third motor 221, a drive gear 222, and a driven gear 223. The third motor 221 is mounted on one side of the second mounting bracket 201; the drive gear 222 is fixedly sleeved on the power output shaft of the third motor 221; the driven gear 223 is fixedly sleeved on the first hollow rod 211, and the driven gear 223 meshes with the drive gear 222. The upper ends of the plurality of second support legs 202 are all fixedly connected to the bottom surface of the second mounting bracket 201.

[0042] Specifically, by activating the air pump 203, air is inflated into the first hollow rod 211, which in turn inflates the two airbags 213 via the two second hollow rods 212, causing the two airbags 213 to expand. Then, a graphene film coated with a paint is wound around the two airbags 213. Next, by activating the third motor 221, the power output shaft of the third motor 221 drives the drive gear 222 to rotate, which in turn meshes with and drives the driven gear 223 to rotate, thereby rotating the first hollow rod 211. When the first hollow rod 211 rotates, it drives the two second hollow rods 212 to rotate, thereby winding the graphene film onto the two air bladders 213. When the thickness of the graphene film wound on the air bladders 213 reaches the required level, the graphene film between the second hollow rods 212 and the conveying rollers 103 is cut. Then, the air inside the air bladders 213 is released, causing the air bladders 213 to contract. The contracted air bladders 213 will separate from the rolled graphene film, making it easier to remove the rolled graphene film from the two second hollow rods 212.

[0043] like Figure 1 and Figure 2As shown, the extrusion mechanism 300 is used to extrude graphene films wound into rolls. The extrusion mechanism 300 includes a third mounting frame 301, a hydraulic cylinder 302, a pressure plate 303, and multiple third support legs 304. The third mounting frame 301 is C-shaped, and the hydraulic cylinder 302 is mounted through the top surface of the third mounting frame 301; the upper surface of the pressure plate 303 is fixedly connected to the extension end of the hydraulic cylinder 302. The upper ends of the multiple third support legs 304 are all fixedly connected to the bottom surface of the third mounting frame 301.

[0044] Specifically, by placing the rolled graphene film on the inner bottom surface of the third mounting frame 301, and then activating the hydraulic cylinder 302 to move the pressure plate 303 downward, the pressure plate 303 flattens the rolled graphene film, thereby obtaining a multilayer graphene film.

[0045] Working principle: In actual use, by starting the air pump 203, air is injected into the first hollow rod 211, and then the two air bags 213 are inflated by the two second hollow rods 212, thereby expanding the two air bags 213; the graphene film is passed between the coating roller 102 and the conveying roller 103 from bottom to top, and then one end of the graphene film is wound around the two air bags 213; then the paint is added into the paint hopper 106, so that the paint flows from the outlet of the paint hopper 106 onto the coating roller 102.

[0046] Then, the first motor 104, the second motor 105 and the third motor 221 are started. When the second motor 105 rotates, its power output shaft will drive the conveyor roller 103 to rotate, and the rotating conveyor roller 103 will drive the graphene film to move. When the first motor 104 runs, it will drive the coating roller 102 to rotate, and the rotating coating roller 102 will coat the coating material on its own surface onto the graphene film.

[0047] When the third motor 221 is running, it drives the drive gear 222 to rotate, which in turn drives the driven gear 223 to rotate, which in turn drives the first hollow rod 211 to rotate. When the first hollow rod 211 rotates, it drives the two second hollow rods 212 to rotate, thereby winding the graphene film onto the two airbags 213. When the thickness of the graphene film wound on the airbags 213 reaches the required level, the graphene film between the second hollow rods 212 and the conveying roller 103 is cut off. Then, the air inside the airbags 213 is released, causing the airbags 213 to contract. The contracted airbags 213 will separate from the rolled graphene film, making it easier to remove the rolled graphene film from the two second hollow rods 212.

[0048] Finally, by placing the rolled graphene film on the inner bottom surface of the third mounting frame 301, and then activating the hydraulic cylinder 302 to move the pressure plate 303 downward, the pressure plate 303 flattens the rolled graphene film, thereby obtaining a multilayer graphene film.

[0049] Example 2

[0050] (1) Pass the graphene film between the coating roller 102 and the conveying roller 103 from bottom to top, and then wrap one end of the graphene film around the two airbags 213.

[0051] (2) Mix 50nm PS microspheres, 100nm PS microspheres, 500nm PS microspheres and 1μm PS microspheres (Transformer Bio) in the same mass ratio, disperse them in water to form a dispersion with a mass fraction of 1%, place it in the coating hopper 106, and flow through the outlet of the coating hopper 106 to the coating roller 102; the coating roller 102 will coat the coating on its own surface onto the graphene film.

[0052] (3) The third motor 221 drives the drive gear 222 to rotate, and the graphene film is wound around the two air bladders 213. After winding 13 times, the number of layers is about 26. The graphene film between the second hollow rod 212 and the conveying roller 103 is cut off. Then, the air in the air bladder 213 is released, causing the air bladder 213 to shrink. The shrunken air bladder 213 will separate from the rolled graphene film. At the same time, a hot air device is used to output hot air to the winding mechanism 200. The hot air temperature is 100-150℃, so that the PS balls are slightly heated and bonded to the graphene film.

[0053] (4) The rolled graphene film is fixed on the cathode clamp for electroplating. The concentration of the copper acid solution in the electrolyte is 1 mol / L, the concentration of the sulfuric acid solution is 3 mol / L, the electroplating voltage range is 4.5V, and the current density is 15A / dm³. 2 The electroplating time was 20 minutes. After electroplating, Cu had formed a single crystal with a thickness of 43 nm.

[0054] (5) Preheat the graphite plate 303 to 1000°C, place the electroplated material on the inner bottom surface of the third mounting frame 301, then start the hydraulic cylinder 302 to drive the graphite plate 303 to move downward, thereby flattening the rolled graphene film. Maintain for 20 minutes to completely decompose the PS microspheres and allow the metal to crystallize, homogenizing the metal into a metal layer, thereby obtaining a multilayer graphene film.

[0055] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

[0056] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to specific implementations. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A multilayer graphene composite film production line, characterized in that, include: A coating mechanism (100) is used to coat a coating onto a graphene film to form a composite film; A winding mechanism (200) for winding a coated graphene film into a roll, comprising: Second mounting bracket (201); The winding rod (210) includes a first hollow rod (211), which passes through and is rotatably connected to the second mounting bracket (201). Two second hollow rods (212) are fixedly connected to the first hollow rod (211). An airbag (213) is sleeved on the second hollow rod (212), and a ventilation hole (214) communicating with the inside of the airbag (213) is opened on the second hollow rod (212). An air pump (203) is mounted on the second mounting bracket (201), and its air outlet pipe is rotatably connected to the first hollow rod (211); A drive assembly (220) is used to drive the winding rod (210) to rotate; The extrusion mechanism (300) is used to extrude the graphene film wound into a roll to form a multilayer composite film; The drive component (220) includes: The third motor (221) is installed on one side of the second mounting bracket (201); The drive gear (222) is fixedly sleeved on the power output shaft of the third motor (221); The driven gear (223) is fixedly sleeved on the first hollow rod (211) and meshes with the driving gear (222).

2. The multilayer graphene composite film production line according to claim 1, characterized in that, The coating mechanism (100) includes: First mounting bracket (101); The coating roller (102) is rotatably mounted inside the first mounting bracket (101); The conveying roller (103) is rotatably mounted inside the first mounting frame (101); The first motor (104) is installed on one side of the first mounting bracket (101), and its power output shaft is fixedly connected to the coating roller (102); The second motor (105) is installed on one side of the first mounting bracket (101), and its power output shaft is fixedly connected to the conveying roller (103); The paint hopper (106) is fixedly connected to the first mounting bracket (101), and the outlet of the paint hopper (106) is located directly above the coating roller (102).

3. The multilayer graphene composite film production line according to claim 2, characterized in that, The extrusion mechanism (300) includes: Third mounting bracket (301); A hydraulic cylinder (302) is mounted through the top surface of the third mounting bracket (301); The pressure plate (303) has its upper surface fixedly connected to the extension end of the hydraulic cylinder (302).

4. The multilayer graphene composite film production line according to claim 3, characterized in that: The extrusion mechanism (300) also includes a plurality of third support legs (304), the upper ends of which are fixedly connected to the bottom surface of the third mounting bracket (301).

5. The multilayer graphene composite film production line according to claim 3, characterized in that: The pressure plate (303) is made of graphite and is connected to a power source to heat the pressure plate (303).

6. The multilayer graphene composite film production line according to claim 2, characterized in that: The coating mechanism (100) also includes a plurality of first support legs (107), the upper ends of which are fixedly connected to the bottom surface of the first mounting bracket (101).

7. The multilayer graphene composite film production line according to claim 1, characterized in that: The winding mechanism (200) also includes a plurality of second support legs (202), the upper ends of which are fixedly connected to the bottom surface of the second mounting bracket (201).

8. The multilayer graphene composite film production line according to claim 1, characterized in that: It also includes a hot air device that outputs hot air to the winding mechanism (200), with the hot air temperature being 100-150°C.

9. The multilayer graphene composite film production line according to claim 1, characterized in that: It also includes an electrolysis device located between the winding mechanism (200) and the extrusion mechanism (300), the electrolysis device comprising: An electrolytic cell containing a copper sulfate solution with a concentration of 0.1-2 mol / L; The anode is located in the electrolytic cell; A cathode chuck is used to hold the composite film wound by the winding mechanism (200).

Images