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Horizontal adjustment stranded wire pre-twisting device and method thereof

A technology of level adjustment and pre-twist, applied in the manufacture of electrical components, circuits, cables/conductors, etc., can solve the problems of increasing aluminum alloy single wire damage, increasing single wire friction damage, single wire rebound loose, etc., to solve the problem of loose rebound and consistent deformation , The effect of preventing the accumulation of pre-torsional stress

Active Publication Date: 2014-07-02
武汉电缆有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are deficiencies in this adjustment method: First, the single wire is on the same plane as the pre-deformation from the pre-twisted wheel to the doubling die. rebound loose
Practice has proved that vertical pre-twisting has a better pre-twisting effect on aluminum wires with lower rigidity, and cannot solve the problem of loose rebound of high-strength aluminum alloy wires with greater rigidity. If other auxiliary devices are added, the problem of loose aluminum alloy wires can be overcome. However, it increases the damage to the aluminum alloy single wire and affects the product quality
The second is that the split line sleeve destroys the pre-deformation, which increases the friction damage to the single line

Method used

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  • Horizontal adjustment stranded wire pre-twisting device and method thereof
  • Horizontal adjustment stranded wire pre-twisting device and method thereof
  • Horizontal adjustment stranded wire pre-twisting device and method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] The "horizontal pre-twisting" device using the pulley as the pre-twisting guide wheel is used to produce large-section high-strength aluminum alloy conductors for the Yellow River large-span on the non-backward twisting machine, which solves the problem of loose rebound of aluminum alloy single wires. Because the equipment pay-off guide wheel and the pre-twisted guide wheel have the same outer diameter, there is no need to increase the auxiliary support roller 5 and the auxiliary pinch roller 6. When using the pre-twist device, select the top group of pre-twist guide wheels as the representative of the pre-twist adjustment, and the steps are as follows:

[0049] 1. First, fix the wire distribution tray 1 to a suitable position to play the role of wire distribution and prevent misalignment when single wires are twisted. The up and down position adjustment of the support roller meets the requirement of natural lifting of the single wire from the first pre-twisted plate 2 ...

Embodiment 2

[0055] The "horizontal pre-twisting" device using the cylindrical wheel as the pre-twisting guide wheel is used for the steel wire armor stranding production of "special armored cables for oil well exploration and ultrasonic oil augmentation" on the back-twisting stranding machine, which solves the problem of steel wire rebounding and loosening. The structure of the oil well cable is: conductor + inner insulation + metal braided conductor + outer insulation + steel wire armor layer 1 + steel wire armor layer 2. The stranding process of steel wire armor is the same as the stranding process of aluminum alloy conductors. When using the pre-twist device, select the top group of pre-twist guide wheels as the representative of the pre-twist adjustment, and the steps are as follows:

[0056] 1. First, fix the wire distribution tray 1 to a suitable position to play the role of wire distribution and prevent misalignment when single wires are twisted. The up and down position adjustmen...

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Abstract

A horizontally adjustable stranded wire pre-twisting device, comprising: a branching supporting wheel, three sets of pre-twisting wheels and two auxiliary wheels. Its advantages are: advanced technology, simple structure, convenient adjustment, consistent deformation and remarkable effect.

Description

technical field [0001] The invention relates to the technical field of wire and cable production, in particular to a level-adjustable pre-twisting device and method for preventing single wires from rebounding and loosening by twisting aluminum alloy conductors or steel wires. Background technique [0002] Wire and cable production and stranding equipment is divided into untwisted wire machine and non-backed twisted wire machine. The products produced by the untwisted wire machine are compact and of good quality, but the production efficiency is low and the equipment cost is high; the non-backed twisted wire The products produced by the machine are easy to loose, but the production efficiency is high, which is more than double that of the untwisting equipment. In order to ensure that the stranded product is not loose and the performance of the product is uniform and stable, for single wires with high rigidity before stranded, such as high-strength aluminum alloy wires, alumin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B13/02
Inventor 段国权汪昌汉潘忠国邓良
Owner 武汉电缆有限公司
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