Synchronous and anti-clockwise twist spinning device and synchronous and anti-clockwise twist spinning method

Abstract

The invention provides a synchronous and anti-clockwise twist spinning device and a synchronous and anti-clockwise twist spinning method. The synchronous and anti-clockwise twist spinning device comprises a drafting mechanism and a winding mechanism, a yarn guiding device is arranged between the drafting mechanism and the winding mechanism, a false twist device is arranged between the drafting mechanism and the yarn guiding device, an upper side band and a lower side band are respectively contacted with fiber strands which are drafted and outputted through a front roller draft pair, a working face of pre-adding twist and a working face of balance twist are respectively formed, the working faces respectively generate twists opposite in twisting direction and identical in size with the fiber strands contacted with the working faces, the drafted double-fed strands are synchronously twisted through the twist generated from speed difference of a bobbin of a bead ring and the reverse twist synchronously generated from upper and lower working faces of the yarn guiding device, the final twist on yarn forming is unaffected by twist effect generated from a yarn forming area by the false twist device, double strands drafted are directed converged and twisted into yarn without changing final twist in yarn forming, quality in yarn forming is improved, and spinning efficiency is improved.

Description

technical field [0001] The invention relates to the field of spinning new technology, in particular to a synchronous counter-twisting spinning device and spinning method. Background technique [0002] Ring spinning, which has a long history, is still the most important spun yarn production method at present. In this way, the fed fiber strips with a certain twist are drawn and slender, and finally twisted into the required spun yarn. However, the main problems of ring spinning are: due to the existence of the twisting triangle, on the one hand, the head and tail ends of the side fibers will not be easily wrapped into the yarn sliver to form hairiness; on the other hand, due to the tension between the side fibers and the center fiber The difference is large, and it is not easy to break at the same time when stretching, resulting in the inability to make full use of the strength of each single fiber and reduce the strength of the single yarn. [0003] In order to solve this pr...

AI Technical Summary

Problems solved by technology

However, the main problems of ring spinning are: due to the existence of the twisting triangle, on the one hand, the head and tail ends of the side fibers will not be easily wrapped into the yarn sliver to form hairiness; on the other hand, due to the tension between the side fibers and the center fiber The difference is large, and it is not easy to break at the same time when stretching, resulting in the inability to make full use of the strength of each single fiber and reduce the strength of single yarn

[0004] However, the existing technical methods generally have low efficiency, uneven twist and strong uneven yarn; the use process is more complicated, which increases the maintenance and maintenance process and is prone to many problems such as large-area brake heads, which makes many existing The method cannot be promoted in large-scale industrialization

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