Graphene heating wire processing mechanism

Abstract

The utility model relates to the field of heating tubes, in particular to a graphene heating wire processing mechanism which comprises an upper die, a lower die, a cutting device and a scrap removing device, the upper die and the lower die are arranged up and down and can move oppositely, the cross sections of the two dies are consistent with the shape of a graphene heating wire, and adsorption holes are formed in the two sides of the upper surface of the lower die. The adsorption module is used for adsorbing graphene sheets; the cutting edge of the cutting device is matched with the cross section of the mold, the cutting device can move up and down relative to the mold, the length direction of the graphene sheet placed on the lower mold is defined as the X direction, the width direction of the graphene sheet is defined as the Y direction, and the cutting edge of the cutting device gradually inclines in the X direction and the Y direction; a scrap removing device is further arranged on the outer side of the mold and can ascend and descend relative to the mold, and the shape of the scrap removing device is matched with the shape of the mold. By the adoption of the scheme, automatic machining of the graphene heating wire can be achieved, and the yield of the graphene heating wire is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of heating pipes, in particular to a graphene heating wire processing mechanism. Background Art

[0002] Graphene is a two-dimensional material composed of a single layer of carbon atoms, with extremely high thermal conductivity and excellent electrical conductivity. When electricity is applied, the free electrons in graphene move irregularly under the action of the current, a phenomenon called Brownian motion. In this process, the collision between electrons and the interaction between electrons and carbon atoms generate heat, which is generated by the collision and friction between carbon atoms in the resistance layer.

[0003] The electric-to-heat conversion efficiency of graphene heating tubes is higher than that of the commonly used carbon fiber heating tubes. Therefore, more and more companies have started to research the relevant technologies of graphene heating tubes, such as a graphene film heating tube and a preparation method thereof disclosed in CN117915502A, a graphene heating film and a heating device including the graphene heating film disclosed in CN208001380U, both of which involve heating wires with continuous bow-shaped distribution.

[0004] The above-mentioned bow-shaped heating wire is generally obtained by processing graphene sheets. Due to the fragility of the graphene sheets themselves, automatic processing of the graphene heating wire using traditional punching methods is likely to cause the graphene sheets to break, while manual processing will lead to reduced processing efficiency. Therefore, the utility model conducted further research on this and developed a graphene heating wire processing mechanism, which resulted in this case. Utility Model Content

[0005] The utility model aims to provide a graphene heating wire processing mechanism, which can realize automatic processing of the graphene heating wire and ensure its yield rate.

[0006] In order to achieve the above purpose, the technical solution of the utility model is as follows:

[0007] A graphene heating wire processing mechanism comprises an upper mold, a lower mold, and a cutting device, wherein the upper mold and the lower mold are arranged up and down and can move toward each other, the cross sections of the two molds are consistent with the shape of the graphene heating wire, and adsorption holes are arranged on both sides of the upper surface of the lower mold for adsorbing graphene sheets;

[0008] The blade edge of the cutting device matches the cross section of the mold, and the cutting device can move up and down relative to the mold. The length direction of the graphene sheet placed on the lower mold is defined as the X direction, and the width direction is defined as the Y direction. The blade edge of the cutting device is gradually inclined in the X direction and the Y direction.

[0009] The applicant conducted tests such as tearing, pressing, and shearing on the graphene sheets and found that when the graphene sheets are cut with a scissors-like structure, they will not break and the edges are smooth. Based on this idea, the applicant designed the above-mentioned technical solution, in which the graphene sheet is initially adsorbed and positioned by the lower mold, and then fixed with the upper mold, and then cut with a cutting device that has the same shape as the heating wire to be processed. By ensuring that the blade edge of the cutting device is always in contact with the graphene sheet only at the "cutting point" (directly pressing with the mold will form line or surface contact, which is easy to be damaged), the force on the graphene sheet can be minimized, thereby preventing it from deformation and damage.

[0010] Furthermore, a chip removal device is provided on the outside of the mold, and the chip removal device can be raised and lowered relative to the mold. The shape of the chip removal device also matches the shape of the mold.

[0011] When the shearing is completed, the completed graphene heating wire is moved away first, and then the excess graphene sheets are removed through the chip removal device.

[0012] Furthermore, a movable vacuum suction cup is provided on one side of the mold, and the vacuum suction cup is used for taking and placing the graphene sheet.

[0013] Due to the properties of graphene sheets, it is easy to damage the graphene sheets using clamps such as robotic arms, so a suction cup is used to pick up and place the graphene sheets.

[0014] Furthermore, the lower mold is fixed, and the upper mold has a lifting function. After the graphene sheet is placed on the lower mold and adsorbed, the upper mold descends.

[0015] Furthermore, the cutting device is arranged above the lower mold, and the lowest point of the bottom edge of the cutting device contacts the graphene sheet first, and as the cutting device descends, the cutting is completed when it reaches the highest point of the bottom edge.

[0016] If the outermost circle of the bottom surface of the cutting device is regarded as a rectangle, the inclination direction is from the corner that first contacts the graphene sheet as the lowest point and gradually rises along the diagonal line.

[0017] Furthermore, the cross-sectional dimension of the upper mold in contact with the graphene sheet is smaller than that of the lower mold.

[0018] The upper and lower molds have the same shape, but the size of the upper mold is slightly smaller than the lower mold, so that the graphene heating wire can be left on the lower mold in cooperation with the cutting device when the upper mold is withdrawn.

[0019] Further, the adsorption hole generates suction by being connected to the cylinder.

[0020] Furthermore, the chip removal device is arranged on the outer side of the lower mold, and has beveled edges on both sides thereof.

[0021] During the ascending process of the chip removal device, the remaining graphene sheets fall from the bevel edge.

[0022] Furthermore, the cutting device comprises a first tool and a second tool, the edges of the first tool and the second tool are continuously toothed, and the teeth of the edges are spaced apart from each other.

[0023] After adopting the above scheme, the utility model has the following advantages compared with the prior art:

[0024] While realizing the industrial automated production of graphene heating wires, the yield rate of the heating wires is guaranteed, which greatly improves production efficiency and reduces the cost of heating tubes. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the graphene heating wire that needs to be processed in this embodiment;

[0026] Figure 2 is a schematic diagram of a device corresponding to this embodiment;

[0027] Figure 3 is a schematic diagram of the upper mold;

[0028] Figure 4 is a schematic diagram of the lower mold;

[0029] Figure 5 is a bottom view of the cutting device;

[0030] Figure 6 is a side view of the cutting device;

[0031] Figure 7 is a schematic diagram of a dandruff removal device;

[0032] Description of symbols

[0033] Upper mold 1, lower mold 2, adsorption hole 21,

[0034] Cutting device 3, first tool 31, edge 311, second tool 32, edge 321,

[0035] Chip removal device 4 , bevel edge 41 , graphene sheet 5 . DETAILED DESCRIPTION

[0036] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0037] Because the structure of the heating tube determines its function, when its heating wire needs to be made into Figure 1 When the structure shown is used, the processing difficulty described in the background technology will be further increased, so the processing of this continuous arched graphene heating wire that is wider in the middle and narrower at both ends is used as an example for explanation.

[0038] like Figure 2 As shown, a graphene heating wire processing mechanism includes an upper mold 1, a lower mold 2, a cutting device 3, and a chip removal device 4, wherein a graphene sheet 5 to be processed can be arranged between the upper mold 1 and the lower mold 2, and the graphene sheet itself can be transported by a vacuum suction cup.

[0039] Structural reference of upper mold 1 and lower mold 2 Figure 3 , Figure 4 The cross section of the mold is Figure 1 The graphene heating wire structure is consistent, the middle part is relatively wide, and the surface in contact with the graphene sheet is relatively flat. There are also adsorption holes 21 on both sides of the lower mold 2, which are used to preliminarily position the graphene sheet. Since the lower mold 2 is fixed and the upper mold 1 is raised and lowered in this embodiment, in order to cooperate with the use of the cutting device 3, the size of the upper mold 1 is slightly smaller than that of the lower mold 2, so that the cutting device 3 is mainly aligned with the lower mold 2.

[0040] Layout reference of cutting device 3 Figure 2 , which is arranged around the upper mold 1 and can be raised and lowered relative to the upper mold 1. Figure 5 , Figure 6 , formed by the cooperation of the first tool 31 and the second tool 32, Figure 5 From the perspective of the present invention, the structures of the first tool 31 and the second tool 32 are consistent, and each tool includes a tool holder on the outside and a blade edge (311, 321) located in the middle, wherein the blade edges (311, 321) of the two tools are continuously toothed and spaced apart from each other, and the overall cross-section formed by the blade edges (311, 321) is consistent with the shape of the graphene heating wire, and the position where the blade edges (311, 321) exist is the part of the graphene sheet that needs to be cut off, and the gap between the blade edges (311, 321) is the shape of the graphene heating wire that needs to be processed.

[0041] On the basis of the above-mentioned blade edge, the tool needs to be further configured to prevent the blade edge from breaking the graphene sheet during the processing of the graphene sheet.

[0042] Likewise Figure 5 For example, and refer to Figure 6The cutting device 3 is arranged above the lower mold 2, with the blade facing downward: the endpoints of the blade 311 of the first tool 31 are points a and b, and the endpoints of the blade 321 of the second tool 32 are points c and d. When point b is taken as the lowest point, it gradually tilts and rises from point b to point a, and the position of point c is relatively higher than point b, and point d is relatively at the highest position; when cutting, the graphene sheet is cut from right to left along the blade edges of the first tool 31 and the second tool 32 in sequence, that is, the contact between the graphene sheet and the tool is always only the "point when being cut", and when the above-mentioned tilt does not exist, a "line or surface when being cut" will be formed, and when there is no tilt of the blade edge, only when all conditions are perfect can the graphene sheet be guaranteed not to be broken, so it is extremely difficult to achieve in industry.

[0043] The tool does not have to be tilted in such a way that b is the lowest point, as long as it complies with the above principles.

[0044] When the cutting is completed, the upper mold and the cutting device withdraw, and the graphene heating wire is removed by the vacuum suction cup. The remaining graphene fragments are removed by the chip removal device 4 arranged around the lower mold 2. The chip removal device 4 is fitted on the outer side of the lower mold 2, and then the cut graphene fragments can be separated from the mold by rising. Then, the fragments can be removed from the bevel 41 on both sides of the chip removal device 4 by means of a blow pipe or the like.

[0045] In the above structure, the lifting structures of the upper mold, the cutting device, and the chip removal device are not the key technologies of the present invention. It is only necessary to find the corresponding driving structure in the commonly used technical means.

[0046] The above are only specific embodiments of the present utility model. At the same time, all words such as "upper, lower, left, right, middle" involved in the present utility model are for reference only and are not absolutely limiting. Any non-substantial changes made using the present utility model shall be deemed as an infringement of the protection scope of the present utility model.

Claims

1. A graphene heating wire processing mechanism, characterized in that: It includes an upper mold, a lower mold, and a cutting device, wherein the upper mold and the lower mold are arranged up and down and can move toward each other, the cross-sections of the two molds are consistent with the shape of the graphene heating wire, and adsorption holes are arranged on both sides of the upper surface of the lower mold for adsorbing the graphene sheet; The blade edge of the cutting device matches the cross section of the mold, and the cutting device can move up and down relative to the mold. The length direction of the graphene sheet placed on the lower mold is defined as the X direction, and the width direction is defined as the Y direction. The blade edge of the cutting device is gradually inclined in the X direction and the Y direction.

2. A graphene heating wire processing mechanism according to claim 1, characterized in that: A chip removal device is also provided on the outside of the mold. The chip removal device can be raised and lowered relative to the mold, and the shape of the chip removal device also matches the shape of the mold.

3. A graphene heating wire processing mechanism according to claim 1, characterized in that: A movable vacuum suction cup is arranged on one side of the mold, and the vacuum suction cup is used for taking and placing the graphene sheet.

4. The graphene heating wire processing mechanism according to claim 1, characterized in that: The lower mold is fixed, and the upper mold has a lifting function. After the graphene sheet is placed on the lower mold and adsorbed, the upper mold descends.

5. The graphene heating wire processing mechanism according to claim 1, characterized in that: The cutting device is arranged above the lower mold, and the lowest point of the bottom edge of the cutting device contacts the graphene sheet first. As the cutting device descends, the cutting is completed when it reaches the highest point of the bottom edge.

6. The graphene heating wire processing mechanism according to claim 1, characterized in that: The cross-sectional size of the upper mold in contact with the graphene sheet is smaller than that of the lower mold.

7. The graphene heating wire processing mechanism according to claim 1, characterized in that: The adsorption hole generates suction by connecting with the cylinder.

8. The graphene heating wire processing mechanism according to claim 2, characterized in that: The chip removal device is arranged on the outer side of the lower mold, and has bevel edges on both sides thereof.

9. The graphene heating wire processing mechanism according to claim 1, characterized in that: The cutting device comprises a first tool and a second tool. The edges of the first tool and the second tool are distributed in a continuous tooth shape, and the teeth of the edges are arranged at intervals from each other.

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