High-flexibility anti-torsion rotating arm plate signal cable

Abstract

The utility model relates to the technical field of cables, in particular to a high-flexibility anti-torsion rotating arm plate signal cable, which is characterized in that the periphery of a plurality of groups of core wire assemblies is sequentially coated with a first belting layer, a shielding layer coated on the first belting layer, and an outer coating layer coated on the shielding layer. Gaps between the plurality of groups of core wire assemblies and the first belting layer are filled with filling materials, and the shielding layer is formed by winding copper foil wires. And the shielding layer adopts a copper foil wire winding mode, so that the tensile capacity of the cable is improved, and the friction between shielding conductors caused by twisting motion is eliminated, thereby greatly reducing the risk of fracture of the shielding conductors, meeting the requirements of twisting and bending for more than 2 million times, and ensuring that electric signals are still normal after long-term twisting motion of the mechanical arm.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of cables, in particular to a high-flexibility anti-torsion rotary arm plate signal cable. BACKGROUND

[0002] A mechanical arm is an automated mechanical device most widely used in the field of mechanical man technology, which can receive instructions and accurately position to a certain point in three-dimensional (or two-dimensional) space for work. A rotary arm plate signal cable needs to be twisted and bent during use. At present, the shielding of such cables on the market adopts copper wire conductor braiding, and the anti-torsion performance is poor. During the twisting process, the copper wire conductors are broken due to mutual friction, the shielding effect is reduced, and the mechanical arm cannot work normally. Therefore, a high-flexibility anti-torsion signal cable needs to be developed to ensure that the electrical signal is still normal after long-term torsion of the mechanical arm. CONTENT OF THE UTILITY MODEL

[0003] In order to solve the above technical problems, the application provides a high-flexibility anti-torsion rotary arm plate signal cable, which comprises a plurality of core wire assemblies, a first wrapping layer wrapped on the plurality of core wire assemblies, a shielding layer wrapped on the first wrapping layer, and an outer layer wrapped on the shielding layer. The gap between the plurality of core wire assemblies and the first wrapping layer is filled with a filling material, and the shielding layer is formed by winding a copper foil wire.

[0004] Preferably, the core wire assembly comprises a plurality of core wires and filling strips, and a second wrapping layer wrapped on the core wires and filling strips.

[0005] Preferably, each core wire comprises a plurality of conductors and a single fiber wire, and an insulating layer wrapped on the conductors and fiber wire, and the plurality of conductors and the single fiber wire are twisted together.

[0006] Preferably, the diameter of the conductors is 0.05 mm.

[0007] Preferably, it further comprises a twisted wire group, and the plurality of core wire assemblies are wrapped around the twisted wire group.

[0008] Preferably, the material of the insulating layer is polypropylene.

[0009] Preferably, it further comprises a ground wire arranged on the inner side of the first wrapping layer, and the conductors of the ground wire are twisted together by a plurality of conductors and a single fiber wire.

[0010] Preferably, the outer layer is made of high-flexibility wear-resistant PVC material.

[0011] As can be seen from the above, the following beneficial effects can be obtained by applying the method provided in this application: by sequentially covering the outer periphery of several sets of core wire assemblies with a first wrapping layer, a shielding layer covering the first wrapping layer, and an outer sheath covering the shielding layer, and filling the gaps between the several sets of core wire assemblies and the first wrapping layer with filler material, the shielding layer is made of copper foil wire winding. The use of copper foil wire winding for the shielding layer not only improves the tensile strength of the cable, but also eliminates the friction between the shielding conductors caused by torsional movement, thereby greatly reducing the risk of shielding conductor breakage, meeting the requirements of more than 2 million torsional and bending cycles, and ensuring that the electrical signal remains normal after long-term torsional movement of the robotic arm. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments of this application or the prior art will be briefly introduced below. Obviously, the accompanying drawings described below are only a part of the embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the signal cable for the highly flexible, torsion-resistant rotating arm plate according to an embodiment of this application.

[0014] Figure 2 This is a schematic diagram of the core wire assembly according to an embodiment of this application. Detailed Implementation

[0015] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0016] Example

[0017] To address the aforementioned technical problems, this embodiment provides a highly flexible, torsion-resistant rotating arm plate signal cable, such as... Figure 1 As shown, the cable includes several sets of core wire assemblies 10, a first wrapping layer 30 covering the core wire assemblies 10, a shielding layer 40 covering the first wrapping layer 30, and an outer sheath 50 covering the shielding layer 40. The gaps between the core wire assemblies 10 and the first wrapping layer 30 are filled with filler material 20. The shielding layer 40 is made of copper foil wire. The copper foil wire winding method used in the shielding layer 40 improves the tensile strength of the cable and eliminates friction between the shielding conductors caused by torsional motion, thereby greatly reducing the risk of shielding conductor breakage. This meets the requirement of more than 2 million torsional and bending cycles, ensuring that the electrical signal remains normal after long-term torsional motion of the robotic arm.

[0018] Specifically, as shown in the drawings, the core wire assembly 10 includes a plurality of core wires 11 and filling strips 12, and a second wrapping layer 13 wrapped around the core wires 11 and the filling strips 12. The first wrapping layer 30 and the second wrapping layer 13 are made of non-woven fabric wrapping. The filling material 20 and the filling strips 12 are made of cotton yarn filling. Figure 2

[0019] Further, each core wire 11 includes a plurality of conductors 111 and a single fiber filament 112, and an insulating layer 113 wrapped around the conductors 111 and the fiber filament 112. The plurality of conductors 111 are twisted with the single fiber filament 112. A single 0.05mm extremely thin and soft conductor 111 is twisted, which has the characteristics of softness. When the conductors 111 are twisted, a 250D high-strength fiber filament 112 is added, and the insulating layer 113 is made of high-mechanical-strength polypropylene material, thereby improving the torsion and bending resistance of the core wire 11.

[0020] Further, the shielding layer 40 is made of copper foil wire winding, which not only improves the tensile strength of the cable, but also eliminates the friction between the shielding conductors caused by torsional movement, thereby greatly reducing the risk of shielding conductor breakage. The sheath layer 50 is made of high-soft and wear-resistant PVC material, which can greatly improve the torsion and bending life of the cable.

[0021] Further, it also includes a twisted wire group 60, and a plurality of core wire assemblies 10 are wrapped around the twisted wire group 60. It also includes a ground wire 70 arranged inside the first wrapping layer 30. The conductors of the ground wire 70 are twisted with a plurality of conductors 111 and a single fiber filament 112. The twisted wire group 60 can be a signal line or a power line. Further, the core wire of the twisted wire group 60 is also composed of a plurality of twisted conductors and insulating layers, and a fiber filament 112 is added when the conductors are twisted.

[0022] In summary, the scheme of the present application wraps the first wrapping layer, the shielding layer wrapped in the first wrapping layer, and the sheath layer wrapped in the shielding layer in sequence on the outer periphery of the plurality of core wire assemblies. The gap between the plurality of core wire assemblies and the first wrapping layer is filled with filling material, and the shielding layer is made of copper foil wire winding. The shielding layer is made of copper foil wire winding, which not only improves the tensile strength of the cable, but also eliminates the friction between the shielding conductors caused by torsional movement, thereby greatly reducing the risk of shielding conductor breakage, meeting the requirement of more than 2 million times of torsion and bending, and ensuring that the electrical signal is still normal after long-term torsional movement of the mechanical arm.

[0023] The above-described embodiments do not constitute a limitation on the protection scope of the technical solution. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the above-described embodiments shall be included in the protection scope of the technical solution.​

Claims

1. A high-flex, torsionally rigid, rotary arm plate signal cable, characterized by: The application relates to a cable, which comprises a plurality of core wire assemblies (10), a first wrapping layer (30) wrapping the plurality of core wire assemblies (10), a shielding layer (40) wrapping the first wrapping layer (30), and an outer layer (50) wrapping the shielding layer (40), wherein a filler (20) is filled in the gap between the plurality of core wire assemblies (10) and the first wrapping layer (30), and the shielding layer (40) is made of copper foil wire.

2. The high-flex, torsion-resistant rotary shaft plate signal cable of claim 1, wherein: The core wire assembly (10) comprises a plurality of core wires (11) and filling strips (12), and a second wrapping layer (13) wrapping the core wires (11) and the filling strips (12).

3. The high-flex, torsion-resistant rotary shaft board signal cable of claim 2, wherein: Each core wire (11) comprises a plurality of conductors (111) and a single fiber wire (112), and an insulation layer (113) wrapping the conductors (111) and the fiber wire (112), wherein the plurality of conductors (111) are twisted with the single fiber wire (112).

4. The high-flex, torsion-resistant rotary shaft board signal cable of claim 3, wherein: The diameter of the conductor (111) is 0.05 mm.

5. The high-flex, torsion-resistant rotary shaft board signal cable of claim 1, wherein: The application further comprises a twisted wire group (60), and the plurality of core wire assemblies (10) are wrapped around the twisted wire group (60).

6. The high-flex, torsion-resistant rotary shaft board signal cable of claim 3, wherein: The material of the insulation layer (113) is polypropylene.

7. The high-flex, torsion-resistant rotary shaft board signal cable of claim 3, wherein: The application further comprises a ground wire (70) arranged inside the first wrapping layer (30), and the conductor of the ground wire (70) is twisted with a plurality of conductors (111) and a single fiber wire (112).

8. The high-flex, torsion-resistant rotary shaft board signal cable of claim 1, wherein: The outer layer (50) is made of high-soft wear-resistant PVC material.

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