A kind of production method of cold-shrinkable cable accessories

Abstract

The invention discloses a cold contraction cable accessory production method. The method comprises the steps of (1) producing a supporting tube in a specified length and a prefabricated cold contraction tube in a specified length; (2) assembling a first terminal at one end of the supporting tube and assembling a second terminal at the other end of the supporting tube, wherein the first terminal and the second terminal are coaxial with the supporting tube; (3) expanding the prefabricated cold contraction tube and enabling the well assembled first terminal, supporting tube and second terminal to be coated with the prefabricated cold contraction tube; (4) retracting the cold contracting tube to a specified position of the supporting tube; (5) detaching the first terminal and the second terminal from the supporting tube, and then cold contraction cable accessory production is accomplished. According to the method, the excessive part of the supporting tube does not need to be cut off, the cutting step is omitted, the first terminal and the second terminal can be recycled after being detached, cost of raw materials is saved, low precision caused by manual cutting can be avoided, the technology is simple, production cost is low, production precision is high, and standardized production can be realized.

Description

technical field [0001] The invention relates to a production method of cold-shrinkable cable accessories, in particular to a production method of cold-shrinkable cable accessories with simple process, low production cost, improved product precision and realization of product standardization. Background technique [0002] Cold-shrinkable cable accessories are injection-vulcanized in the factory using elastomer materials, and then expanded to form cold-shrinkable tubes and lined with spiral support tubes to form various cable accessories or other accessories. When installing, wrap the cold-shrinkable cable accessories on the treated cable ends or joints or other components, pull out the inner supporting support tube, and shrink the cold-shrinkable tube on the cable or other components. [0003] At present, in the process of manufacturing cold-shrinkable cable accessories, the production of the support tube and the pre-shrinkable tube is generally completed first, and then the ...

AI Technical Summary

Problems solved by technology

According to this method, every expansion of a cold-shrinkable tube will produce a section of invalid support tube that needs to be processed, and the process is complicated, which not only increases the labor cost of processing the support tube, but also leads to waste of raw materials. Recycling and reuse, the recycling process and reuse process itself is a cost consumption, resulting in a lot of energy loss and increased multi-step process

[0005] Furthermore, after the cold-shrinkable tube is expanded and the length is repaired, the excess part of the support tube is artificially removed. This artificial removal process cannot guarantee the uniform length of the support tube after removal, and thus cannot guarantee the standardization of the product.

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