Numerical analysis of the tension and twist of staple strands in embeddable and locatable spinning

Author:

Liu Keshuai1,Zhou Yi2,Xu Weilin2

Affiliation:

1. College of Textile and Clothing Engineering, Soochow University, Suzhou, China

2. Key Laboratory of Textile Fiber & Product (Wuhan Textile University), Ministry of Education, China

Abstract

This study reports a numerical analysis on embeddable and locatable spinning systems. The finite element method is used to quantify the relationship between the tension and twist of staple strands and the spinning parameters. The model was constructed using the three-dimensional beam element, which is capable of simulating the stretching, bending and torsion behavior of the filament and the staple strand. It was found that the staple strand shares far less load (around 13.8%) than the filament during the spinning process. The twist is mainly distributed on the composite yarns and less on other zones. The pretension of the filament, the filament–strand distance ratio, the twist of the composite yarn and the material fed-in velocity were investigated for their influence on the tension and twist of the staple strand. Numerical predictions showed that higher filament tension and filament–strand ratio lead to less load and more twist on the staple strand. This is beneficial in producing stronger and smoother yarns and avoiding end breakages. It was also determined that strand tension and twist increase with an increase in composite yarn twist and a decrease in material fed-in velocity.

Funder

Ministry of Education, Hubei province, China

Publisher

SAGE Publications

Subject

Polymers and Plastics,Chemical Engineering (miscellaneous)

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