PERFORMANCE EVALUATION OF A CIRCULAR WEFT KNITTING MACHINE THROUGH OBSERVATION OF YARN INPUT TENSION: A CASE STUDY
Journal Title: Annals of the University of Oradea. Fascicle of Textiles, Leatherwork - Year 2018, Vol 0, Issue 2
Abstract
This paper presents a noble approach to assess the performance of a modern knitting machine through monitoring of running yarn tension during operational hours. An industrial circular weft knitting machine having positive storage feed system was observed, as a case study, in this research for its performance evaluation. A total of 16 different production runs- each for a machine running period of 30 seconds [equivalent to the time required for more than 05 revolutions of the needle bed or machine at 10.5 rev. /min.] were analyzed. Highest tension-peak value for each second was identified through MLT Wesco Yarn Tension and Rate Meter and associated PC software. Run charts were built-up with these selected tension values by a statistical software, i.e. Minitab and the p-values were checked to identify special cause variations. It was found that most of the production runs showed no non-random pattern in the tension values based on an alpha value (significance level) of 0.05, representing absence of special cause variations and thus disclosing quite satisfactory machine performance. However, the production run with non-random pattern was investigated through cause-effect diagram. The presence of astronomical data point was also evaluated. The findings here also indicated no direct machine-related cause regarding such variation or pattern in yarn input tension.
Authors and Affiliations
A. K. M Mobarok HOSSAIN, Abu Rayhan Md. ALI
Keywords
Related Articles
- EP ID EP432414
- DOI -
- Views 225
- Downloads 0
INFLUENCE OF TECHNOLOGICAL PARAMETERS ON AGROTEXTILES WATER ABSORBENCY USING ANOVA MODEL
Agrotextiles are now days extensively being used in horticulture, farming and other agricultural activities. Agriculture and textiles are the largest industries in the world providing basic needs such as food and clothin...
EFFECTS OF ULTRASONIC WASHING ON COTTON TEXTILES
The idea of employing ultrasonic energy to textiles has been commenced since 1990s. It can be seen that the use of ultrasonic energy in textile washing processes has some advantages such as energy conservation, reducing...
EFFECT OF DIVIDED CORE ON THE BENDING PERFORMANCES OF TEXTILE REINFORCED FOAM CORE SANDWICH COMPOSITES
Sandwich composites are generally used in marine applications, wind turbines, space and aircraft vehicles due to their high bending rigidities in addition to their lighter weights. The objective of this study is to inves...
MULTIVARIATE ANALYSIS OF THE PHYSICO MECHANICAL PARAMETERS VARIATION FOR HYDROPHOBIC TEXTILE
This work presents a multivariate analyses regarding textile surfaces treated with fluorocarbon chemicals in order to obtain hydrophobic effect. The hydrophobic characteristics of the textile samples (cotton 100%) were o...
POTENTIAL APPLICATION OF HORSE CHESTNUT (Aesculus hippocastanum L.) EXTRACTS IN DOUBLE FACE PRODUCTION
Aesculus hippocastanum L, known as horse chestnut, is generally used for therapeutic, medicinal and pharmaceutical applications and has large seed shells containing aesculin which is responsible for the dyeing property....