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Halogen-free super-soft distortion-resistant cable and preparation method thereof

A super flexible and durable cable technology, applied in bendable cables, cable/conductor manufacturing, insulated cables, etc., to achieve the effect of optimized design structure, high torsion, and elimination of stress concentration

Pending Publication Date: 2019-03-01
TIANJIN YXT TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing cables are difficult to meet the requirements of shaft bending, torsion, super flexibility, long service life, reduced downtime rate, and reduced maintenance costs for cables in many processing fields.

Method used

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  • Halogen-free super-soft distortion-resistant cable and preparation method thereof

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preparation example Construction

[0036] A method for preparing a halogen-free ultra-flexible twist-resistant cable, the specific steps are as follows:

[0037] Step 1: Prepare ultra-flexible copper conductors with a high-speed wire bundle machine, with a stranding pitch of 8-10mm and a speed of 30m / min; ten copper wires with a diameter of 0.06mm are wound around the nylon wire by a wire winding machine , the signal composite conductor 41 was obtained; nineteen copper wires with a diameter of 0.10 mm were twisted and twisted to the left to obtain the power line conductor 31;

[0038] Step 2, using a ￠50 extruder to prepare the power insulating layer 32 and the signal insulating layer 43, the temperature of the extrusion head is 210 degrees Celsius, and the extruded thicknesses of the power insulating layer 32 and the signal insulating layer 43 are 0.25 mm and 0.5 mm, respectively. Power frequency AC voltage 4000V, extrusion speed 150-200m / min;

[0039] Step 3: Wrap every two signal composite conductors 41 cov...

Embodiment 1

[0050] A halogen-free ultra-flexible twist-resistant cable, comprising an outer sheath 1, a number of reinforced aramid fibers 11 are arranged in the side wall of the outer sheath 1, a cotton yarn braided layer 12 is fixed on the inner wall of the outer sheath 1, and the cotton yarn braided layer 12 is covered with a steel wire rope 2, four power wires 3, four twisted pair shielded transmission signal wires 4 and a twisted nylon wire 5, the power wire 3 and the twisted pair shielded transmission signal wire 4 are twisted around the steel wire rope 2 at intervals ,

[0051] The steel wire rope 2 includes a stress-relieving regular stranded steel wire rope 21, and the stress-relieving regular stranded steel wire rope 21 is provided with a spiral support 22. The power line 3 includes a power line conductor 31, and the power line conductor 31 is covered with a power insulation layer 32, and the twisted pair is shielded. The transmission signal line 4 includes two signal composite ...

Embodiment 2

[0070] A halogen-free ultra-flexible twist-resistant cable, comprising an outer sheath 1, a number of reinforced aramid fibers 11 are arranged in the side wall of the outer sheath 1, a cotton yarn braided layer 12 is fixed on the inner wall of the outer sheath 1, and the cotton yarn braided layer 12 is covered with a steel wire rope 2, four power wires 3, four twisted pair shielded transmission signal wires 4 and a twisted nylon wire 5, the power wire 3 and the twisted pair shielded transmission signal wire 4 are twisted around the steel wire rope 2 at intervals ,

[0071] The steel wire rope 2 includes a stress-relieving regular stranded steel wire rope 21, and the stress-relieving regular stranded steel wire rope 21 is provided with a spiral support 22. The power line 3 includes a power line conductor 31, and the power line conductor 31 is covered with a power insulation layer 32, and the twisted pair is shielded. The transmission signal line 4 includes two signal composite ...

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Abstract

The invention discloses a halogen-free super-soft distortion-resistant cable and a preparation method thereof. The cable comprises an outer sheath, wherein the outer sheath is provided with a plurality of reinforced aramid yarns; and a steel wire rope, a power line, a twist pair shielding transmission signal wire and a winding nylon yarn, which are stranded together, are coated in the outer sheath. The preparation method comprises the following specific steps of: preparing a super-soft copper conductor by using a high-speed bunching machine; preparing a power insulating layer and a signal insulating layer by using an extruder; stranding the power line and the twist pair shielding transmission signal wire at the periphery of a spiral support by using a cable former; braiding a cotton yarn braid layer outside an industrial control cable core by using a braider; and carrying out double-layer co-extrusion on anti-flaming ethylene propylene rubber to prepare the halogen-free super-soft distortion-resistant cable. The halogen-free super-soft distortion-resistant cable is capable of effectively eliminating the stress concentration phenomenon of cables in the using environment, transmitting control electronic signals and synchronously providing electric energy for mechanisms of equipment, and the overall structural design has high flexing resistance and high torsion performance so thatnormal work can be carried out under three-dimensional and + / - 360-degree reciprocating torsion.

Description

technical field [0001] The invention relates to the technical field of follower cables, in particular to a halogen-free ultra-flexible twist-resistant cable and a preparation method thereof. Background technique [0002] The 21st century is an era of rapid development of information and digitalization, especially from labor-intensive to intelligent manufacturing, and the requirements for supporting cables in intelligent equipment are getting higher and higher, especially in industrial robots, 3D printing, and multi-dimensional processing. In other fields, mechanical equipment often needs to make ±360-degree twisting action together with cables, and the requirements for supporting cables are getting higher and higher. Existing cables are difficult to meet the requirements of shaft bending, torsion, super-flexibility, long service life, reduced downtime rate, and reduced maintenance costs for cables in many processing fields. Contents of the invention [0003] The invention...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/00H01B7/02H01B7/04H01B7/18H01B7/22H01B7/295H01B13/00
CPCH01B7/0045H01B7/0225H01B7/0275H01B7/04H01B7/183H01B7/1875H01B7/223H01B7/295H01B13/00
Inventor 邵国望
Owner TIANJIN YXT TECH
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