Graphene heating wire machining tool

Abstract

The utility model relates to the field of graphene heating wire processing, in particular to a graphene heating wire processing tool, which comprises a first tool apron and a second tool apron, the blade edges of the first tool apron and the second tool apron, which are in contact with a graphene sheet, are distributed in a continuous tooth shape, the teeth of the blade edges are arranged at intervals, and meanwhile, the surfaces of the first tool apron and the second tool apron, which are in contact with the graphene sheet, are inclined. After the scheme is adopted, when the graphene sheets are processed, the graphene sheets cannot be broken.

Description

Technical Field

[0001] The utility model relates to the field of graphene heating wire processing, in particular to a graphene heating wire processing tool. 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 can easily lead to the breakage of the graphene sheets. Therefore, the inventors conducted further research on this and developed a graphene heating wire processing tool, which resulted in this case. Utility Model Content

[0005] The utility model aims to provide a graphene heating wire processing tool, which will not cause the graphene sheet to break when processing the graphene sheet.

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

[0007] A graphene heating wire processing tool comprises a first tool holder and a second tool holder. The blade edges of the first tool holder and the second tool holder contacting a graphene sheet are distributed in a continuous tooth shape, and the teeth of the blade edges are arranged at intervals from each other. At the same time, the surfaces of the first tool holder and the second tool holder contacting the graphene sheet are inclined.

[0008] After the applicant conducted tests such as tearing, pressing, and shearing on graphene sheets, it was found that when the graphene sheets were cut with a scissors-like structure, they would not break and the edges would be smooth; based on this idea, the applicant designed the above technical solution.

[0009] Furthermore, when the above-mentioned processing tool is used in conjunction with the upper mold and the lower mold, 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, the edges of the first tool holder and the second tool holder match the cross-sections of the molds, and the processing tool can move up and down relative to the mold.

[0010] Furthermore, the length direction of the graphene sheet is defined as the X direction, the width direction is defined as the Y direction, the first tool holder and the second tool holder are set in the X direction, the teeth protruding from the edge are set in the Y direction, and the bottom surface of the machining tool is gradually inclined in both the X direction and the Y direction.

[0011] That is, there is a lowest point on the bottom surface of the machining tool composed of the first tool holder and the second tool holder, so that the entire bottom surface is inclined upward in the X direction and the Y direction, and the blade edge at the lowest point contacts the graphene sheet first.

[0012] Furthermore, the length of the teeth protruding from the blade edge of the first knife seat and the second knife seat is longest in the middle section and shortest at both ends.

[0013] When the graphene heating wire has a structure that is wide in the middle and narrow at both sides, the technical solution of the utility model can also be used for cutting, and only the length of the teeth on the blade edge needs to be adjusted.

[0014] After adopting the above scheme, the utility model has the following advantages compared with the prior art:

[0015] When cutting the graphene heating wire, the yield rate of the heating wire is guaranteed, which greatly improves the production efficiency and reduces the cost of the heating tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the graphene heating wire that needs to be processed in this embodiment;

[0017] Figure 2 is a schematic diagram of a processing device corresponding to this embodiment;

[0018] Figure 3 It is a bottom view of the machining tool;

[0019] Figure 4 It is a side view of the machining tool;

[0020] Figure 5 is a schematic diagram of the upper mold;

[0021] Figure 6 is a schematic diagram of the lower mold;

[0022] Description of symbols

[0023] Upper mold 1, lower mold 2,

[0024] Processing tool 3, first tool holder 31, cutting edge 311, second tool holder 32, cutting edge 321,

[0025] Graphene sheet4. DETAILED DESCRIPTION

[0026] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0027] 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.

[0028] like Figure 2 As shown, a graphene heating wire processing tool can be used in conjunction with an upper mold 1 and a lower mold 2 for positioning a graphene sheet, wherein a graphene sheet 4 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.

[0029] Structural reference of upper mold 1 and lower mold 2 Figure 5 , Figure 6 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 4 is relatively flat. Since the lower mold 2 is fixed and the upper mold 1 is lifted in this embodiment, in order to cooperate with the use of the processing tool 3, the size of the upper mold 1 is slightly smaller than that of the lower mold 2, so that the processing tool 3 is mainly aligned with the lower mold 2.

[0030] Layout reference for machining tool 3 Figure 2 , which is arranged around the upper mold 1 and can be raised and lowered relative to the upper mold 1. Figure 3 , Figure 4 The first knife seat 31 and the second knife seat 32 cooperate to form Figure 3 From the perspective of the present invention, the first blade seat 31 and the second blade seat 32 are arranged horizontally, and the blade edge (311, 321) is located in the middle. The blade edge (311, 321) is continuously toothed, and the protruding blade teeth are arranged at intervals. The overall cross-section formed by the blade edge (311, 321) is consistent with the shape of the graphene heating wire. The position where the blade edge (311, 321) exists 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.

[0031] 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.

[0032] Likewise Figure 3 For example, and refer to Figure 4 , the processing tool 3 is arranged above the lower mold 2, with the blade edge facing downward: the endpoints of the blade edge 311 of the first tool holder 31 are points a and b, and the endpoints of the blade edge 321 of the second tool holder 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 holder 31 and the second tool holder 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 blade edge tilt, 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.

[0033] 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.

[0034] 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 tool, characterized in that: It comprises a first knife seat and a second knife seat. The edges of the first knife seat and the second knife seat contacting the graphene sheet are distributed in a continuous tooth shape, and the teeth of the edges are arranged at intervals. At the same time, the surfaces of the first knife seat and the second knife seat contacting the graphene sheet are inclined.

2. The graphene heating wire processing tool according to claim 1, characterized in that: When the above-mentioned processing tool is used in conjunction with the upper mold and the lower mold, 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. The edges of the first tool holder and the second tool holder match the cross-sections of the molds, and the processing tool can move up and down relative to the mold.

3. The graphene heating wire processing tool according to claim 1, characterized in that: The length direction of the graphene sheet is defined as the X direction, the width direction is defined as the Y direction, the first tool holder and the second tool holder are set in the X direction, the teeth protruding from the edge of the blade are set in the Y direction, and the bottom surface of the machining tool is gradually inclined in both the X direction and the Y direction.

4. The graphene heating wire processing tool according to claim 1, characterized in that: The length of the teeth protruding from the blade edge of the first and second knife seats is longest in the middle section and shortest at both ends.

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