Lightweight high-flexibility mobile cable

Abstract

The invention provides a lightweight high-flexibility mobile cable. The service life and the shield life of the cable are prolonged, the flexibility, the tensile property and the torsional property ofthe cable are ensured and the overall weight of the cable is reduced. The lightweight high-flexibility mobile cable comprises a center conductor, a first insulating layer, an outer conductor, a braided shielding layer and a sheath layer, wherein the center conductor, the first insulating layer, the outer conductor, the braided shielding layer and the sheath layer are sequentially arranged along the radial direction from inside to outside in a sectioned state; the center conductor comprises first insulating core wires and an outer wrapping tape part; a whole body formed by twisting a pluralityof first insulating core wires is coated with the outer wrapping tape part; a plurality of filling materials are arranged between the wall of an inner cavity defined by the outer wrapping tape part and the outer ring surfaces of insulating layers of the first insulating core wires; the outer ring part of the outer wrapping tape part is coated with the first insulating layer; and a plurality of twisted second insulating core wires are circularly distributed in an annular cavity formed between the outer ring surface of the first insulating layer and the inner ring surface of the braided shielding layer.

Description

technical field [0001] The invention relates to the technical field of mobile cables, in particular to lightweight and highly flexible mobile cables. Background technique [0002] With the development of Industry 4.0, industrial automation production is becoming more and more widespread, which can greatly improve production efficiency, reduce production costs, and reduce the chance of defective products caused by human factors in the production process. The development of automation must have the support of corresponding supporting products. For example, highly flexible mobile cables are one of the most critical components used in automated production equipment. The life quality of cable products directly affects the performance of equipment. [0003] Most of the existing highly flexible drag chain cables used in industrial automation equipment have the following problems: [0004] 1. The service life of the cable is short and the replacement is frequent; [0005] 2. Sign...

AI Technical Summary

Problems solved by technology

[0004] 1. The service life of the cable is short and the replacement is frequent;

[0005] 2. Signal interference, equipment malfunction, control accuracy problems, and fault alarms occur when the shield is broken during use;

[0006] 3. The weight per unit length of the cable is relatively large, and the overall hardness of the cable leads to greater power and higher energy consumption of the motor supporting the equipment; the supporting equipment is easily damaged, and the replacement cost is high, etc.

[0007] 4. After the shield is broken, it may cause serious accidents such as short circuit caused by puncture of insulating core wire

[0009] 1. The process conditions and production equipment of the conductor in the manufacturing process cannot meet the requirements of this type of cable

[0010] 2. At present, the most widely used material in the production process of wires is PVC material; because PVC material is relatively mature in both technology and production, but PVC material itself has its disadvantages: high density, low strength, small elongation, low slippery etc.

[0011] 3. Stranding process control and equipment use lead to greater stress inside the insulated core wire, which eventually reduces the service life of the paper

[0013] 5. There are many ways of shielding. At present, the main ways of cable shielding for automation equipment are aluminum foil shielding, tinned / bare copper braided shielding, etc. The main way to consider is whether the braiding density meets the requirements and does not choose the appropriate one according to the specific use environment. Process factors such as weaving density, weaving angle, and weaving pitch

[0014] 6. The choice of sheath material mostly uses PVC material as the sheath material. This kind of material has low strength, low elongation and other characteristics, so that it cannot meet the overall fatigue resistance test requirements of the cable.

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