The Hong Kong Research Institute of Textiles and Apparel Limited, The Hong Kong Polytechnic University

The Hong Kong Special Administrative Region of the People's Republic of China

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D01H 5/74 - Rollers 1
D01H 7/52 - Ring-and-traveller arrangements 1
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1.

Yarn twisting method and device for ring-spinning machine

      
Application Number 16465478
Grant Number 11098417
Status In Force
Filing Date 2017-02-22
First Publication Date 2021-03-18
Grant Date 2021-08-24
Owner The Hong Kong Research Institute of Textiles and Apparel Limited, The Hong Kong Polytechnic University (Hong Kong)
Inventor
  • Xu, Bingang
  • Feng, Jie

Abstract

A yarn twisting method and device for a ring spinning machine is provided. The twisting method comprises the following steps: feeding three roving strands (1, 2, 3) into a back roller (8) of the ring spinning machine; after drafting, the three roving strands, three fiber strands (1, 2, 3) exiting from a nip point of a front roller (10), wherein a fiber strand (2) in the middle forms an angle with a plane formed by the other two fiber strands (1, 3), and thus the three fiber strands (1, 2, 3) form a multi-strand spinning triangle region having a three-dimensional spatial form; and in the multi-strand spinning triangle region, the three fiber strands (1, 2, 3) obtaining twist by means of a ring traveler of the ring spinning machine, and the twisted fiber strands (1 ,2, 3) are combined into a composite yarn (4) through a convergence point.

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