sz stranding cable machine and its method of realizing resistance to twist

Abstract

The invention discloses an SZ stranding cable forming machine and a method for realizing twist stopping. According to the method, a stranding forming die with a twist stopping function is arranged between a central tube type stranding device and a tailstock device; a plurality of casing pipes are twisted along S direction or Z direction and wound on a nonmetal reinforcer through a stranding head on the central tube type stranding device to form equi-pitch spiral winding; when passing the forming position of the forming die, the casing pipes and the nonmetal reinforcer are fastened and formed by yarns driven by air vehicles to form a formed optical cable; meanwhile, the formed optical cable is firmly pressed and fixed by twist stopping pressing wheels at the twist stopping position; the stranding head rotates in reverse direction after rotating a set number of turns, the formed optical cable rotates in reverse direction along with the stranding head and is twisted at the forming position, the set pitch is effectively fixed and the optical cable structure is stabilized. The method disclosed by the invention has the advantages that the back-twist problem in the SZ stranding production process can be effectively solved; the production speed of the small-pitch layer stranded type optical cables can be increased greatly; and the production-manufacturing cost is reduced at the same time.

Description

technical field [0001] The invention relates to an SZ stranding and cabling machine, in particular to an SZ twisting and cabling machine and a method for realizing resistance to torsion. Background technique [0002] With the acceleration of the pace of social information construction, the optical communication industry has begun to develop rapidly, and optical cables have therefore been more widely used. [0003] The SZ stranding process is an important process in the manufacturing process of the layer stranding optical cable. During the SZ stranding production process, as the SZ forward and reverse direction of the stranding head is reversed, the unformed optical cable usually produces a large reaction with the stranding end. To rotate, that is to produce cable back twist. In particular, the layer-stranded optical cable with a non-metallic central strength member structure has a very large back-twisting effect, and the direct consequence is that the production speed is on...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is that in the twisting production of the optical cable SZ, the anti-torsion device is added behind the binding machine, and the anti-torsion effect is not obvious.

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