A study on the needle heating in heavy industrial sewing - Part 1: analytical models

In heavy industrial sewing, needle heating has become a serious problem that limits the further increase of the sewing speed, and hence the productivity. The high temperature in the needle can degrade the strength of the thread. At the same, it may cause the wear of the needle eye, which would furth...

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Bibliographic Details
Published in:International journal of clothing science and technology 2001-04, Vol.13 (2), p.87-105
Main Authors: Li, Qinwen, Liasi, Evangelos, Zou, Hui-Jun, Du, R
Format: Article
Language:English
Subjects:
Air bags
Clothing industry
Engineering
Experimental methods
Experiments
Finite element analysis
Heat
High speed
High temperature
Literature reviews
Manufacturing
Mathematical models
Needle
Productivity
Radiometry
Research methodology
Sewing
Sewing machines
Studies
Textile research
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Summary:In heavy industrial sewing, needle heating has become a serious problem that limits the further increase of the sewing speed, and hence the productivity. The high temperature in the needle can degrade the strength of the thread. At the same, it may cause the wear of the needle eye, which would further damage the thread. It can also scorch the fabric, as well as temper and weaken the needle itself. Therefore, it is important to develop a model that can predict the needle heating and, hence, find remedies to minimize its effects. According to a literature survey, most research on needle heating focuses on experimental methods, such as infrared radiometry, infrared pyrometry, etc. This paper is the first part of our research on needle heating. In this paper, two analytical models are presented: the sliding contact model and the lumped variable model. These models are relatively simple and easy to use. Given needle geometry, sewing condition, and fabric characteristic, they can predict the needle temperature rise starting from initial heating to steady state. The simulation results are rather accurate. Hence, the models can be used to quickly identify the potential needle heating problems on the shop floor. In Part 2 of our study, a finite element analysis (FEA) model is presented together with the experiment results.
ISSN:0955-6222
1758-5953
DOI:10.1108/09556220110390700