Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/91246
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Title: Yarn twisting method and device for ring-spinning machine
Authors: Xu, B 
Feng, J
Issue Date: 24-Aug-2021
Source: US Patent 11,098,417 B2. Washington, DC: US Patent and Trademark Office, 2021.
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.
Rights: Assignee: The Hong Kong Research Institute of Textiles and Apparel Limited, The Hong Kong Polytechnic University
Appears in Collections:Patent

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