Three-layer co-extrusion die

Abstract

The utility model, which relates to the technical field of the three-layer co-extrusion wire, discloses a three-layer co-extrusion die comprising a wire body, one side of the wire body is fixedly connected with a conductor shielding layer, one side of the conductor shielding layer is fixedly connected with an insulating layer, one side of the insulating layer is fixedly connected with an insulating shielding layer, and the insulating shielding layer is fixedly connected with the insulating shielding layer. One side of the insulation shielding layer is fixedly connected with a copper strip shield, one side of the copper strip shield is fixedly connected with a wrapping tape, one side of the wrapping tape is fixedly connected with an inner sheath, one side of the inner sheath is fixedly connected with an outer sheath, and the conductor shielding layer and the insulation shielding layer are made of insulation materials. The safety and the stability of the wire can be effectively protected; through the arrangement of the conductor shielding layer and the insulation shielding layer, the high-temperature-resistant and insulation effects are achieved during use, the high-temperature-resistant and insulation-resistant electric wire can work at a relatively high temperature, the reliability of the electric wire is ensured, the high-temperature-resistant and insulation-resistant electric wire has good insulation performance, and the safety of the electric wire can be effectively protected.

Description

Technical Field

[0001] The utility model relates to the technical field of three-layer co-extrusion electric wires, in particular to a three-layer co-extrusion die. Background Art

[0002] Three-layer co-extrusion technology is a commonly used technology in wire manufacturing. It is mainly made by extruding three layers of plastics of different materials at the same time through an extrusion process. Among them, the first layer is the conductor insulation layer, which is usually made of high-density polyethylene (HDPE) or plant filler cross-linked polyethylene (XLPE), and has excellent electrical and mechanical properties; the second layer is the insulation layer, which is usually made of plant filler XLPE, used to isolate the conductor and the metal sheath to improve the insulation performance of the wire; the third layer is the sheath layer, which is usually made of polyvinyl chloride (PVC) and has the characteristics of heat resistance, wear resistance, corrosion resistance, and fire resistance. The wires made by three-layer co-extrusion technology have good resistance to electrical breakdown, impact resistance, flame spread, and environmental humidity, so they are widely used in power, communication, transportation and other fields.

[0003] The existing three-layer co-extrusion mold has poor insulation and high temperature resistance when in use, poses a safety hazard after long-term use, is prone to cause safety problems, and has poor signal stability, affecting the user experience.

[0004] In view of the above problems, the utility model provides a three-layer co-extrusion die. Utility Model Content

[0005] The purpose of the utility model is to provide a three-layer co-extrusion die, which can work at a higher temperature, ensure the reliability of the wire, have good insulation performance, can effectively protect the safety of the wire, and can prevent mutual interference between wires to ensure the stability of power transmission. In terms of signal transmission, copper tape shielding can be used to make signal lines, improve the stability and speed of signal transmission, thereby solving the problems in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a three-layer co-extrusion die, comprising a wire body, one side of the wire body is fixedly connected with a conductor shielding layer, one side of the conductor shielding layer is fixedly connected with an insulating layer, one side of the insulating layer is fixedly connected with an insulating shielding layer, one side of the insulating shielding layer is fixedly connected with a copper tape shield, one side of the copper tape shield is fixedly connected with a wrapping tape, one side of the wrapping tape is fixedly connected with an inner sheath, one side of the inner sheath is fixedly connected with an outer sheath, the conductor shielding layer and the insulating shielding layer are both made of insulating materials, have good insulating properties, can effectively protect the safety and stability of the wire, and achieve a safety effect. The material of the insulating layer is PVC, which has good high temperature resistance and can work at higher temperatures, ensuring the stability and reliability of the wires, achieving a stable effect. The inner sheath and the outer sheath are both insulating materials with good insulation properties, which can effectively protect the safety and stability of the wires, achieving a protective effect. The material of the copper tape shielding is electromagnetic shielding, which has good conductivity and plasticity. It can be easily combined with other materials to make shielding materials of various shapes and structures, achieving the effect of improving performance. The wrapping tape can improve the fire resistance and insulation properties of the wires, can fix the wires, prevent the wires from loosening or falling off, and achieve a safety effect.

[0007] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0008] The utility model provides a three-layer co-extrusion die,

[0009] (1) Through the setting of the conductor shielding layer and the insulating shielding layer, the high temperature resistance and insulation effect are achieved during use. It can work at a higher temperature, ensure the reliability of the wire, have good insulation performance, and can effectively protect the safety of the wire.

[0010] (2) Through the setting of copper tape shielding and wrapping tape, the signal stability effect is achieved during use, which can prevent mutual interference between wires and ensure the stability of power transmission. In terms of signal transmission, copper tape shielding can be used to make signal lines to improve the stability and speed of signal transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the electric wire body of the utility model;

[0012] Figure 2 This is a schematic diagram of the conductor shielding layer of the utility model;

[0013] Figure 3 This is a schematic diagram of the insulation layer of the utility model;

[0014] Figure 4 It is a schematic diagram of the outer sheath of the utility model.

[0015] In the figure: 1. Wire body; 2. Conductor shielding layer; 3. Insulation layer; 4. Insulation shielding layer; 5. Copper tape shielding; 6. Wrapping tape; 7. Inner sheath; 8. Outer sheath. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] In order to solve the problem of how to effectively locate and adjust the technology, such as Figure 1-4 As shown, the following preferred technical solutions are provided:

[0018] A three-layer co-extrusion die comprises a wire body 1, one side of the wire body 1 is fixedly connected with a conductor shielding layer 2, through the arrangement of the conductor shielding layer 2, it can work at a higher temperature, ensure the reliability of the wire, have good insulation performance, can effectively protect the safety of the wire, thereby achieving an insulation effect, one side of the conductor shielding layer 2 is fixedly connected with an insulating layer 3, through the arrangement of the insulating layer 3, it can work at a higher temperature, have good high temperature resistance, ensure the stability and reliability of the wire, thereby achieving a safety effect, one side of the insulating layer 3 is fixedly connected with an insulating shielding layer 4, one side of the insulating shielding layer 4 is fixedly connected with a copper tape shield 5, through the arrangement of the copper tape shield 5, mutual interference between wires can be prevented, and the stability of power transmission can be ensured. In terms of signal transmission, the copper tape shield 5 can be used to make signal lines, improve the stability and speed of signal transmission, thereby achieving a stable effect. One side of the copper tape shield 5 is fixedly connected to a wrapping tape 6, one side of the wrapping tape 6 is fixedly connected to an inner sheath 7, and one side of the inner sheath 7 is fixedly connected to an outer sheath 8. Through the setting of the outer sheath 8, it has good insulation performance. The material of the outer sheath 8 is an insulating material, which can effectively protect the safety and stability of the wire, thereby achieving a safety effect. Specifically, through the three-layer co-extrusion method, the conductor shielding layer 2, the insulating layer 3 and the insulating shielding layer 4 protect the wire body 1 inside, so that the device body can work at a higher temperature, ensuring the stability and reliability of the wire, and having good insulation performance, can effectively protect the safety and stability of the wire, and can ensure the long-term stable operation of the product. The conductor shielding layer 2 and the insulating shielding layer 4 are both insulating materials with good insulation performance, which can effectively protect the safety and stability of the wire. The purpose of this design is to effectively improve the use effect of the wire, and can ensure the long-term stable operation of the product, thereby achieving the use effect. The material of the insulating layer 3 is PVC, which has good high temperature resistance and can work at a higher temperature to ensure the stability and reliability of the wire. The purpose of this design is to improve the safety of the device in daily use and avoid the occurrence of some dangerous accidents, thereby achieving a safety effect. The inner sheath 7 and the outer sheath 8 are both insulating materials with good insulation performance and can effectively protect the safety and stability of the wire. The purpose of this design is to protect the internal structure, and the surface is smooth and uniform, and the appearance is beautiful, which meets the aesthetic requirements of modern home furnishings, thereby achieving a beautiful effect. The material of the copper tape shielding 5 is electromagnetic shielding, which has good conductivity and plasticity and can be easily combined with other materials to make shielding materials of various shapes and structures. The purpose of this design is to improve the use performance of the wire, thereby achieving the effect of improving performance. The wrapping tape (6) can improve the fire resistance and insulation performance of the wire, fix the wire, and prevent the wire from loosening or falling off. The purpose of this design is to protect the internal structure of the wire, thereby achieving a safety effect.

[0019] In summary: through the three-layer co-extrusion method, the conductor shielding layer 2, the insulating layer 3 and the insulating shielding layer 4 are used to protect the wire body 1 inside, so that the device body can work at a higher temperature, ensuring the stability and reliability of the wire, and having good insulation performance, which can effectively protect the safety and stability of the wire, and can ensure the long-term stable operation of the product. The internal copper tape shielding 5 of the wrapping tape 6 can prevent mutual interference between the wires and ensure the stability of power transmission. In terms of signal transmission, the copper tape shielding 5 can be used to make signal lines to improve the stability and speed of signal transmission. The inner sheath 7 and the outer sheath 8 can protect the internal structure.

[0020] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0021] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A three-layer co-extrusion die, comprising a wire body (1), characterized in that: A conductor shielding layer (2) is fixedly connected to one side of the electric wire body (1), an insulating layer (3) is fixedly connected to one side of the conductor shielding layer (2), an insulating shielding layer (4) is fixedly connected to one side of the insulating layer (3), a copper tape shielding (5) is fixedly connected to one side of the insulating shielding layer (4), a wrapping tape (6) is fixedly connected to one side of the copper tape shielding (5), an inner sheath (7) is fixedly connected to one side of the wrapping tape (6), an outer sheath (8) is fixedly connected to one side of the inner sheath (7), the conductor shielding layer (2) and the insulating shielding layer (4) are both made of insulating materials, the insulating layer (3) is made of PVC, the inner sheath (7) and the outer sheath (8) are both made of insulating materials, and the copper tape shielding (5) is made of electromagnetic shielding.

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