Techniques for unveiling faults during, knitting, production

Author

Catarino, A. ; Rocha, A. ; Monteiro, J.L. ; Soares, F.

Author_Institution

Dept. of Textile Eng., Minho Univ., Portugal

Volume

1

fYear

2004

fDate

4-7 May 2004

Firstpage

389

Abstract

Detection of faults during production of knitted fabric is crucial for improved quality and productivity. The yarn input tension is an important parameter that can he used for this purpose. This paper presents and discusses a computer-based monitoring system which was developed for the detection of faults and malfunctions during the production of weft knitted fabric, using the yarn input tension. In particular, it presents the method used to unveil the appearance of faults, based on two different approaches: comparison with a previously acquired waveform and a particular pattern matching technique average magnitude cross-difference.

Keywords

computerised monitoring; fabrics; fault diagnosis; production engineering computing; productivity; yarn; average magnitude cross-difference; computer-based monitoring system; fault detection; pattern matching technique; productivity improvement; quality improvement; weft knitted fabric; yarn input tension; Fabrics; Fault detection; Force measurement; Force sensors; Industrial electronics; Optical detectors; Optical devices; Production; Textiles; Yarn; Average Magnitude; Cross-Difference; Fault Detection; Knitting Machine; Monitoring; Signal Processing;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics, 2004 IEEE International Symposium on

Print_ISBN

0-7803-8304-4

Type

conf

DOI

10.1109/ISIE.2004.1571839

Filename

1571839