Negative-pressure reel-to-reel graphene growth equipment

Abstract

The utility model relates to the technical field of graphene growth equipment, in particular to negative-pressure reel-to-reel graphene growth equipment, which has the advantages that after waste wires are collected to a waste take-up device, the subsequent finished wires are collected to a finished take-up device through a wire hooking device; the problems that in the prior art, waste wires are doped in a finished product take-up device, and the production efficiency is low are solved. The pay-off mechanism and the take-up mechanism respectively comprise a pay-off cavity and a take-up cavity, and the pay-off cavity communicates with the take-up cavity through a pipeline to form a wire transmission space; the control mechanism is connected with the pay-off mechanism, the take-up mechanism and the growth mechanism to prepare a graphene wire; the take-up mechanism comprises a take-up device and a wire hooking device which are arranged in a take-up cavity. The take-up device comprises a finished product take-up device and a waste take-up device. The control mechanism is further connected with the wire hooking device so as to control the wire hooking device to collect the finished wire to the finished wire take-up device and collect the waste wire to the waste wire take-up device.

Description

Technical Field

[0001] The present application relates to the technical field of graphene growth equipment, and in particular to a device for negative pressure roll-to-roll graphene growth. Background Art

[0002] There are two main ways to combine graphene with copper. The first is to mix graphene powder with copper to evenly distribute the graphene within the copper. The second is to grow graphene on high-purity copper foil using chemical vapor deposition (CVD) technology, so that the graphene is mainly distributed on the copper surface. However, both methods require extremely high temperatures (greater than 1000°C), close to the melting point of copper, which not only places extremely high demands on equipment but also greatly increases energy consumption and costs.

[0003] The first method causes the copper wire raw material diameter to vary greatly during processing, from 8mm or 2.6mm to 0.015-0.6mm, making it difficult to ensure product consistency. The second method is limited by high vacuum conditions and methane as a carbon source, and can only use copper foil as a raw material, which limits the product form and can only produce sheet copper products. In addition, the existing technology has many difficulties in industrialization, such as the inability to achieve continuous production, resulting in low production efficiency, high energy consumption and costs, and difficulty in being widely used in downstream fields.

[0004] The utility model patent with authorization announcement number CN219239269U discloses a roll-to-roll negative pressure graphene growth device, including a pay-off device, a heating device, a heating lifting bracket, a carbon source device, a take-up device and a vacuum device. The pay-off device is used to wind the wire for growing graphene, and the wire passes through the heating device and is connected to the take-up device; the vacuum device and the carbon source device are respectively used to vacuum the connected pay-off device, heating device and take-up device to form a vacuum negative pressure and input the carbon source required for graphene growth; the heating device is used to use the carbon source transmitted by the carbon source device to negatively grow graphene on the wire of the pay-off device; the heating lifting bracket is connected to the heating device, and is used to lift and lower the heating device to respectively heat the pay-off device and leave the pay-off device; the take-up device is used to wind the wire after negative pressure growth of graphene.

[0005] However, the patented device requires waiting for the heating device to cool before replacing the pay-off spool. This time-consuming process seriously affects the ability to continuously produce. If the pay-off spool is replaced without waiting for the heating device to cool in order to improve efficiency, waste wire will be entangled in the take-up device at the beginning of the next production cycle, which not only reduces product quality but also increases material waste. Utility Model Content

[0006] In response to one or more of the problems in the above-mentioned prior art, the present application provides a negative pressure roll-to-roll graphene growth device, comprising: a pay-off mechanism, a take-up mechanism, a control mechanism, a growth mechanism, and a pressure control mechanism, wherein:

[0007] The wire-releasing mechanism and the wire-retrieving mechanism respectively include a wire-releasing cavity and a wire-retrieving cavity, wherein the wire-releasing cavity is connected to the wire-retrieving cavity through a pipeline to form a sealed wire transmission space;

[0008] The control mechanism is connected to the wire-releasing mechanism and the wire-retrieving mechanism, and is used to control the transmission, replenishment and collection of the wire;

[0009] The control mechanism is also connected to the growth mechanism and is used to control the growth reaction of graphene;

[0010] The pressure control mechanism is connected to the wire-releasing cavity of the wire-releasing mechanism and is used to control the pressure of the wire transmission space;

[0011] The wire-taking mechanism also includes: a wire-taking device and a wire-hooking device arranged in the wire-taking cavity, the wire-taking device including a finished product wire-taking device and a waste wire-hooking device; the control mechanism is connected to the wire-hooking device, and is used to control the wire-hooking device to collect the finished product wire onto the finished product wire-taking device, and to collect the waste wire onto the waste wire-hooking device.

[0012] In some embodiments of the present application, the wire-taking mechanism further includes: a wire drawing device, a tension rocker and a wire arranging device arranged in the wire-taking cavity; the wire-taking device is used to receive the wire entering the wire-taking cavity and transfer it to the tension rocker; the tension rocker is used to control the wire-taking tension; the wire arranging device receives the wire from the tension rocker and arranges and collects it on the wire-taking device.

[0013] In some embodiments of the present application, the wire taking-up mechanism further includes a motor disposed in the wire taking-up cavity, the motor including a wire drawing motor, a wire arranging motor, and a wire taking-up motor, the wire drawing motor being used to drive the wire drawing device, the wire arranging motor being used to drive the wire arranging device, and the wire taking-up motor being used to drive the wire taking-up device;

[0014] The transmission parts of the motor are sealed by magnetic fluid sealing devices.

[0015] In some embodiments of the present application, a guide mechanism is further included, which includes an anti-jumping wire guide wheel and a quick-install blind plate. The anti-jumping wire guide wheel is arranged at the turning corner of the pipeline to realize wire steering and transportation; the quick-install blind plate is arranged on the pipeline at the anti-jumping wire guide wheel.

[0016] In some embodiments of the present application, the vertically upward pipeline is connected above the line-releasing mechanism, and the guiding mechanism is provided in the pipeline to turn the pipeline vertically downward to connect to the line-retrieving mechanism.

[0017] In some embodiments of the present application, the growing mechanism includes a heating device and a cooling device;

[0018] The heating device is arranged on a pipeline close to the wire-releasing mechanism, and the control mechanism controls the heating device to perform heating;

[0019] The cooling device is arranged on a pipeline close to the wire-taking mechanism, and the control mechanism controls the cooling device to perform cooling.

[0020] In some embodiments of the present application, the growth mechanism also includes a ventilation device and a carbon source device, the ventilation device is connected to the pipeline, the control mechanism controls the start and stop of the ventilation device, and the carbon source device is arranged at the connection between the ventilation device and the pipeline, and the control mechanism controls the carbon source device to provide the carbon source required for graphene growth.

[0021] In some embodiments of the present application, the pressure control mechanism includes an air pump and a hose, the control mechanism is connected to the air pump, and the air pump is connected to the wire-releasing cavity through the hose to control the pressure in the wire transmission space.

[0022] In some embodiments of the present application, the control mechanism includes a control panel and a control system, wherein the control panel is configured for direct operation by a user;

[0023] The control panel cooperates with the control system to control the pay-off mechanism, the take-up mechanism, the growing mechanism and the pressure control mechanism;

[0024] In some embodiments of the present application, an exhaust valve is provided on the pipeline.

[0025] In some embodiments of the present application, a line-changing door is provided on the cavity wall of the line-releasing cavity, and a line-taking door is provided on the cavity wall of the line-retrieving cavity.

[0026] The above embodiments of the present application have at least one or more of the following beneficial effects:

[0027] The wire hooking device of the present application can first wind the wire on the waste wire take-up device after the vacuum breaking and reel changing operation, and through the vacuum pump vacuuming and gas protection, the wire is changed from an oxidized state to a usable finished wire state. At this time, the finished wire is hooked to the finished wire take-up device by the wire hooking device, and the wire on the waste wire spool is discarded, thereby reducing the mixing of waste wire in the finished wire take-up device due to improper operation and improving production efficiency; the wire hooking device can be controlled by the control mechanism to quickly complete the wire reel changing process, reducing the time of manual operation, improving the efficiency of reel changing, reducing manual intervention, and improving the stability and reliability of production;

[0028] The retractable and retractable mechanism is placed directly inside the vacuum chamber. The vertical arrangement reduces the overall size of the equipment, making it more compact, saving space, and facilitating installation and operation. The quick-install right-angle guide wheel design makes threading and maintenance more convenient and quick, reducing the time and labor intensity of equipment maintenance.

[0029] The entire heating zone adopts a vertical design to reduce the pipe size, shorten the heating time, and extend the process zone and cooling zone, which helps to improve production efficiency.

[0030] The transmission parts in this application all use magnetic fluid seals, which is convenient for maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The accompanying drawings are used to provide a further understanding of the present application and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the present application and do not constitute a limitation of the present application. In the accompanying drawings:

[0032] Figure 1 1 is a schematic structural diagram of an apparatus for negative pressure roll-to-roll graphene growth according to an embodiment of the present application;

[0033] Figure 2 1 is a schematic structural diagram of one direction of a take-up mechanism of a negative pressure roll-to-roll graphene growth device provided in an embodiment of the present application;

[0034] Figure 3 1 is a schematic structural diagram of a tension swing rod in one direction of a device for negative pressure roll-to-roll graphene growth according to an embodiment of the present application;

[0035] Figure 4 2 is a schematic structural diagram of another direction of the tension swing arm of the negative pressure roll-to-roll graphene growth device provided by an embodiment of the present application;

[0036] Figure 5 It is a structural schematic diagram of a magnetic fluid sealing device of a negative pressure roll-to-roll graphene growth device provided in an embodiment of the present application.

[0037] Reference numerals:

[0038] 100, wire pay-off mechanism; 110, wire pay-off chamber; 111, wire changing door; 120, wire coil;

[0039] 200, wire take-up mechanism; 210, wire take-up chamber; 211, mounting plate; 212, wire inlet; 213, wire removal door; 220, wire take-up device; 221, finished product take-up device; 222, scrap product take-up device; 230, wire hooking device; 240, wire drawing device; 250, tension swing rod; 251, bobbin; 252, connector; 253, counterweight; 254, distance sensor; 260, wire arrangement device; 261, wire arrangement guide wheel; 262, wire arrangement rod; 270, motor; 271, drawing motor; 272, wire arrangement motor; 273, finished product take-up motor; 274, scrap product take-up motor; 280, magnetic fluid sealing device;

[0040] 300, Pipeline; 310, Exhaust Valve; 320, Guide Mechanism; 321, Quick-install Blind Plate; 322, Introduction to Anti-jump Wire;

[0041] 400, control mechanism; 410, control panel;

[0042] 500, growth mechanism; 510, heating device; 520, cooling device; 530, carbon source device; 540, ventilation device;

[0043] 600. Pressure control mechanism; 610. Air pump; 620. Hose. DETAILED DESCRIPTION

[0044] Embodiments of the present application will be described in detail below, examples of which are illustrated in the accompanying drawings. Generally, the components of the embodiments of the present application described and shown in the drawings herein may be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed application, but rather merely represents selected embodiments of the present application.

[0045] Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of this application.

[0046] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this application and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0047] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0048] The following will be combined Figures 1 to 5 The technical solution of the present application is described clearly and completely. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0049] See Figure 1-Figure 5 The embodiment of the present application provides a negative pressure roll-to-roll graphene growth device, comprising: a pay-off mechanism 100, a take-up mechanism 200, a pipeline 300, a control mechanism 400, a growth mechanism 500 and a pressure control mechanism 600, wherein:

[0050] The pay-off mechanism 100 includes a pay-off chamber 110, and the take-up mechanism 200 includes a take-up chamber 210. The pay-off chamber 110 is connected to the pipeline 300 via a vacuum quick-connect connection and communicates with the take-up chamber 210 via the pipeline 300, forming a sealed wire transmission space. The pay-off, take-up, and graphene growth processes of the wire growth are all completed in this wire transmission space.

[0051] The control mechanism 400 is electrically connected to the pay-off mechanism 100 and the take-up mechanism 200. The control mechanism 400 can control the pay-off mechanism 100 to thread and pay out the wires, and can also control the take-up mechanism 200 to take in the wires.

[0052] The control mechanism 400 is also electrically connected to the growth mechanism 500 and is used to control the progress and stop of the graphene growth reaction;

[0053] The control mechanism 400 is also electrically connected to the pressure control mechanism 600, and the pressure control mechanism 600 is connected to the wire-paying cavity of the wire-paying mechanism 100 via a vacuum joint in a vacuum quick-connect manner, for controlling the pressure in the wire-transmission space to the pressure required for growing graphene;

[0054] The wire-taking mechanism 200 also includes: a wire-taking device 220 and a wire-hooking device 230 installed on a mounting plate 211 in the wire-taking cavity 210, the wire-taking device 220 including a finished product wire-taking device 221 and a scrap wire-hooking device 222; the control mechanism 400 is electrically connected to the wire-hooking device 230, and is used to control the wire-hooking device 230 to collect the finished wire onto the spool of the finished product wire-taking device 221, and to collect the scrap wire onto the spool of the scrap wire collecting device 222.

[0055] Mounting plate 211 is installed within wire take-up chamber 210, fully or partially dividing it into two chambers of different sizes: the first chamber with wire inlet 212, and the second chamber. Wire take-up device 220 and wire hooking device 230 are located or partially located in the first chamber to facilitate wire handling, while the second chamber can be used to house components that do not directly contact the wire, such as the motor.

[0056] The wire material is a material on which graphene is grown as needed, such as copper wire.

[0057] The payout mechanism 100 temporarily stores and continuously releases the wire, for example, a wire reel. The take-up mechanism 200 collects the wire released from the payout mechanism, such as a wire reel. Both mechanisms are connected by a pipeline 300, allowing the release, transport, graphene growth, and collection of the wire to occur within a sealed space. Standard flange interfaces connect the three mechanisms. The payout mechanism 100, take-up mechanism 200, and pipeline 300 can be constructed of stainless steel or other materials commonly used in the field.

[0058] The control mechanism 400 adopts the control mode and control method commonly used in this field to be electrically connected with the wire-releasing mechanism 100 and the wire-reeling mechanism 200, the growing mechanism 500 and the pressure control mechanism 600, thereby controlling them to realize corresponding functions.

[0059] The growth mechanism 500 is a mechanism related to graphene growth, which can perform a graphene growth reaction on the wire of the pipeline 300 under the control of the control mechanism 400. Conventional graphene growth methods in the art, such as chemical vapor deposition, can be used.

[0060] The pressure control mechanism 600 is a mechanism that can control the pressure of the wire transmission space. For example, the pressure control can be achieved by using a vacuum pump to draw a vacuum.

[0061] Finished wires are wires that have grown graphene normally, and waste wires are wires that have been oxidized or otherwise damaged after the sealed environment has been destroyed. By adjusting the wires through the wire hooking device 230, waste wires are prevented from being wound into the finished wires, causing problems such as low product qualification rate.

[0062] In some embodiments of the present application, Figure 1-Figure 2 As shown, the pay-off mechanism 100 includes a wire coil 120 on which the wire for graphene growth is wound. During the wire drawing process of the take-up mechanism 200 , the pay-off mechanism 100 passively pays off the wire to achieve roll-to-roll continuous preparation of graphene wire.

[0063] Preferably, the pay-off mechanism 100 can be driven by a motor and controlled by the control mechanism 400 so that the pay-off speed of the pay-off mechanism 100 is synchronized with the take-up speed of the take-up mechanism 200, thereby making the tension of the wire more stable.

[0064] In some embodiments of the present application, Figure 1-Figure 2 As shown, the wire-taking mechanism 200 also includes: a wire drawing device 240, a tension rocker 250 and a wire arranging device 260 installed on a mounting plate 211 in the wire-taking cavity 210; the wire-taking device 240 is used to receive the wire entering the wire-taking cavity 210 and transfer it to the tension rocker 250; the tension rocker 250 is used to control the wire-taking tension; the wire arranging device 260 receives the wire from the tension rocker 250 and arranges and collects it on the wire-taking device 260.

[0065] The wire taking-up device 220, the wire hooking device 230, the wire drawing device 240, the tension swing rod 250 and the wire arranging device 260 are all arranged in the wire taking-up cavity 210. They can be arranged in an overhead manner in the wire taking-up cavity 210 using a bracket, a support plate, etc., or they can be arranged on the cavity wall of the wire taking-up cavity 210.

[0066] The wire drawing device 240 is composed of one or more coaxial and rotating guide wheels, and is arranged at the wire entrance of the wire taking-up chamber 210 to smoothly transfer the wire from the wire paying-out chamber 110 to the wire taking-up chamber 210, and further transfer the wire to the tension rocker 250. The wire drawing device 240 can make the wire enter the wire taking-up chamber 210 more stably and smoothly.

[0067] like Figure 2-Figure 4As shown, the tension rocker 250 includes a spool 251, a connector 252, a counterweight 253 and a distance sensor 254. The spool 251 is connected to the connector 252 for receiving the wire. The connector 252 is arranged through the mounting plate 211, so that the spool 251 is located in the first chamber, which is convenient for adjusting the wire tension; the counterweight 253 is connected to the connector 252 and is arranged in the second chamber together with the distance sensor 254. The distance sensor 254 can measure the change in the distance between the counterweight 253 and it, thereby sensing whether the tension rocker 250 as a whole is in a horizontal or other state.

[0068] The function of the tension lever 250 is to control the tension of the wire during the winding process. By adjusting the weight of the counterweight 253, the control force exerted by the tension lever 250 on the wire can be adjusted. This maintains the tension lever 250 in a horizontal position, stabilizing the force applied during wire winding and preventing the wire from being wound too loosely around the winding spool. As the tension lever 250 swings up and down, it causes the connector 252 to rotate, which in turn causes the counterweight 253 in the second chamber to move, causing the distance between it and the distance sensor 254 to change. The distance sensor 254 measures the amplitude of the swing. When the wire breaks, the tension lever 250 loses its ability to move the wire, and the counterweight 253 drops to its lowest point. The distance sensor 254 senses that the distance has reached its maximum, indicating that the control mechanism 400 detects a break and initiates an emergency stop.

[0069] In some embodiments of the present application, see Figure 1 and Figure 2 The installation position of tension lever 250 can be adjusted according to actual conditions. By adjusting tension lever 250, the tension applied to the wire can be adjusted to ensure that the wire maintains appropriate tension during winding, avoiding excessive tension or looseness. Proper tension control helps prevent damage or deformation of the wire and ensures neat and uniform winding.

[0070] The wire arranging device 260 includes a wire arranging guide wheel 261 and a wire arranging rod 262. The wire arranging rod 262 is arranged on the mounting plate 211. The wire arranging guide wheel 261 is provided at one end of the first chamber. The wire arranging guide wheel 261 is responsible for receiving the wire transmitted from the tension swing rod 250, and arranging and collecting it on the wire taking-up device.

[0071] Further, see Figure 2 and Figure 5 The wire taking-up mechanism 200 also includes a motor 270 arranged in the wire taking-up cavity 221. The motor 270 includes a wire drawing motor 271, a wire arranging motor 272, a finished product wire taking-up motor 273 and a scrap wire taking-up motor 274. The wire drawing motor 271 is used to drive the wire drawing device 240, the wire arranging motor 272 is used to drive the wire arranging device 260, the finished product wire taking-up motor 273 is used to drive the finished product wire taking-up device 221, and the scrap wire taking-up motor 274 is used to drive the scrap wire taking-up device.

[0072] The transmission parts of the motor 270 are sealed by the magnetic fluid sealing device 280, that is, they are installed on the mounting plate 211 through the magnetic fluid sealing device 280, which is convenient for maintenance.

[0073] In some embodiments of the present application, see Figure 1 The growth mechanism 500 includes a heating device 510 and a cooling device 520. The heating device 510 is arranged around the pipeline 300 close to the wire-unwinding mechanism 100. The control mechanism 400 controls the heating device 510 to heat the pipeline to provide the temperature environment required for the graphene growth reaction. The heating device 510 can adopt a heating device commonly used in the field of graphene growth, and this application does not limit this. The cooling device 520 is set before the wire enters the wire-rewinding mechanism 200. Specifically, a cooling water channel surrounding the pipeline can be used for cooling. The control mechanism 400 can control the cooling device 520 for cooling.

[0074] Furthermore, the growth mechanism 500 also includes a carbon source device 530 and a ventilation device 540. The ventilation device 540 is connected to the pipeline 300. The control mechanism 400 controls the start and stop of the ventilation device 540. The carbon source device 530 is arranged at the connection between the ventilation device 540 and the pipeline 300. The control mechanism 400 can control the carbon source device 530 to provide the carbon source required for graphene growth.

[0075] The ventilation device 540 can introduce protective gas into the pipeline 300. The protective gas is an inert gas such as nitrogen to play a protective role in the graphene growth reaction.

[0076] In some embodiments of this application, see Figure 1 The pressure control mechanism 600 includes an air pump 610 and a hose 620. The control mechanism 400 is connected to the air pump 610, and the air pump 610 is connected to the wire-releasing cavity 110 through the hose 620. Under the control of the control mechanism 400, the air pump 610 can extract the gas in the wire-releasing cavity 110 to make the pressure in the wire transmission space meet the requirements for graphene growth.

[0077] In some embodiments of the present application, see Figure 1 The control mechanism 400 includes a control panel 410 and a control system (not shown in the figure), and the control panel 410 is used for direct operation by the user;

[0078] The control panel 410 cooperates with the control system to control the pay-off mechanism 100, the take-up mechanism 200, the growth mechanism 500 and the pressure control mechanism 600. The control mechanism 400 can be controlled by a conventional control system in the art, and this application does not impose any restrictions on this.

[0079] In some embodiments of the present application, see Figure 1 An exhaust valve 310 is provided on the pipeline 300.

[0080] Further, see Figure 1 The pipeline 300 also includes a guide mechanism 320, which includes a quick-install blind plate 321 and an anti-jump wire guide wheel 322. The anti-jump wire guide wheel 322 is arranged at the corner of the pipeline 300 to realize the turning and delivery of the wire. The quick-install blind plate 321 is arranged on the pipeline 300 at the anti-jump wire guide wheel 322. The quick-install blind plate 321 can be removed to detect the working conditions of the furnace, pipeline, and anti-jump wire guide wheel and to perform maintenance.

[0081] The wire enters the pipeline 300 upward from the top of the pay-off mechanism 100, passes through the heating zone, and then makes a 90-degree turn on the anti-jumping guide wheel 322 in the pipeline, entering the reaction zone. It then makes another 90-degree downward turn on the anti-jumping guide wheel 322 in the pipeline, and then enters the take-up mechanism 200 after passing through the cooling zone. The guide mechanism 320 makes the entire equipment more integrated, and the compact layout reduces the space occupied by the equipment, improving the space utilization of the production line.

[0082] In some embodiments of the present application, see Figure 1 and Figure 2 A line changing door 111 is provided on the wall of the line paying-out cavity 110 , and a line taking-out door 213 is provided on the wall of the line taking-up cavity 210 .

[0083] The user can open the wire changing door 111 to add new wires, and can also open the wire taking door 213 to take out finished wires, which also facilitates the maintenance of the interior of the equipment.

[0084] The following is the workflow of the negative pressure roll-to-roll graphene growth apparatus provided in one embodiment of the present application: A copper wire reel is placed in the pay-off chamber 110 of the pay-off mechanism 100. The copper wire passes through the heating and cooling zones in a detachable conduit 300, and then enters the take-up chamber. The copper wire then passes through the copper wire take-up device, the tension lever, and the wire arrangement device, ultimately securing the copper wire to the waste wire collection device. The vacuum pump is turned on, and after the vacuum is reduced to ≤5 Pa, the heating program for the heating zone is activated on the control panel. When the temperature reaches the specified working temperature, the growth mechanism 500 is controlled to start through the control mechanism 400, and the carbon source is brought in through the protective gas to grow graphene in the heating zone. At the same time, the waste wire taking-up device 222 is started to collect the waste wire without growing graphene into the waste wire taking-up device 222. When the finished graphene copper wire enters the take-up mechanism 200, the wire hooking device 230 can be controlled by the control panel to collect the finished graphene copper wire onto the finished product take-up device 221 until the copper wire in the pay-off mechanism 100 is used up or the take-up mechanism 200 is full, and the vacuum breaking and reeling operation is performed.

[0085] If the vacuum break and reel change operation has just been completed during continuous production, the copper wire in the heating area is in an oxidized state. Once the oxidized copper wire is completely wound onto the spool of the scrap wire take-up device 222, the control mechanism 400 controls the wire hooking device 230 to hook the copper wire onto the spool of the finished product wire take-up device 221, and normal production begins.

[0086] It should be noted that the technical solutions in the various embodiments of the present application can be combined with each other, but the basis for the mutual combination is that it can be implemented by ordinary technicians in this field; when the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist, that is, it does not fall within the scope of protection of this application.

[0087] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A negative pressure roll-to-roll graphene growth device, characterized in that: include: Pay-off mechanism, take-up mechanism, control mechanism, growth mechanism and pressure control mechanism, among which: The wire-releasing mechanism and the wire-retrieving mechanism respectively include a wire-releasing cavity and a wire-retrieving cavity, wherein the wire-releasing cavity is connected to the wire-retrieving cavity through a pipeline to form a wire transmission space; The control mechanism is connected to the wire-releasing mechanism and the wire-retrieving mechanism, and is used to control the transmission, replenishment and collection of the wire; The control mechanism is also connected to the growth mechanism and is used to control the growth reaction of graphene; The pressure control mechanism is connected to the wire-releasing cavity of the wire-releasing mechanism and is used to control the pressure of the wire transmission space; The wire-taking mechanism also includes: a wire-taking device and a wire-hooking device arranged in the wire-taking cavity, the wire-taking device including a finished product wire-taking device and a waste wire-hooking device; the control mechanism is connected to the wire-hooking device, and is used to control the wire-hooking device to collect the finished product wire onto the finished product wire-taking device, and to collect the waste wire onto the waste wire-hooking device.

2. The negative pressure roll-to-roll graphene growth device according to claim 1, characterized in that: The wire-taking mechanism also includes: a wire drawing device, a tension swing rod and a wire arranging device arranged in the wire-taking cavity; the wire drawing device is used to receive the wire entering the wire-taking cavity and transfer it to the tension swing rod; the tension swing rod is used to control the wire-taking tension; the wire arranging device receives the wire from the tension swing rod and arranges and collects it on the wire-taking device.

3. The negative pressure roll-to-roll graphene growth device according to claim 2, characterized in that: The wire-taking mechanism further includes a motor disposed in the wire-taking cavity, the motor including a wire-drawing motor, a wire-traversing motor, and a wire-taking motor. The wire-drawing motor is used to drive the wire-drawing device, the wire-traversing motor is used to drive the wire-traversing device, and the wire-taking motor is used to drive the wire-taking device. The transmission parts of the motor are sealed by magnetic fluid sealing devices.

4. The negative pressure roll-to-roll graphene growth device according to claim 1, characterized in that: It also includes a guiding mechanism, which includes an anti-jumping guide wheel and a quick-install blind plate. The anti-jumping guide wheel is arranged at the turning corner of the pipeline to realize the turning and transportation of wires; the quick-install blind plate is arranged on the pipeline at the anti-jumping guide wheel.

5. The negative pressure roll-to-roll graphene growth device according to claim 4, characterized in that: The above of the line-releasing mechanism is connected with the pipeline which is vertically upwards, and the guide mechanism is provided in the pipeline so as to turn the pipeline to be vertically downwards and connected to the line-receiving mechanism.

6. The negative pressure roll-to-roll graphene growth device according to claim 1, characterized in that: The growth mechanism includes a heating device and a cooling device; The heating device is arranged on a pipeline close to the wire-releasing mechanism, and the control mechanism controls the heating device to perform heating; The cooling device is arranged on a pipeline close to the wire-taking mechanism, and the control mechanism controls the cooling device to perform cooling.

7. The negative pressure roll-to-roll graphene growth device according to claim 6, characterized in that: The growth mechanism also includes a ventilation device and a carbon source device. The ventilation device is connected to the pipeline. The control mechanism controls the start and stop of the ventilation device. The carbon source device is arranged at the connection between the ventilation device and the pipeline. The control mechanism controls the carbon source device to provide the carbon source required for graphene growth.

8. The negative pressure roll-to-roll graphene growth device according to claim 1, characterized in that: The pressure control mechanism includes an air pump and a hose. The control mechanism is connected to the air pump. The air pump is connected to the wire-releasing cavity through the hose to control the pressure in the wire transmission space.

9. The negative pressure roll-to-roll graphene growth device according to claim 1, characterized in that: The control mechanism includes a control panel and a control system, wherein the control panel is used for direct operation by a user; The control panel cooperates with the control system to control the wire-releasing mechanism, the wire-retrieving mechanism, the growing mechanism and the pressure-controlling mechanism.

10. The negative pressure roll-to-roll graphene growth device according to claim 1, characterized in that: A line-changing door is provided on the cavity wall of the line-releasing cavity, and a line-taking door is provided on the cavity wall of the line-retrieving cavity.

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