Tension Device for Winder:Part4 ; Experimental Study on Friction Elements Used in Tension Devices

概要

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Two typical types of friction elements have been selected from many types of tension devices and the characteristics of their friction with several kinds of yarns have been studied experimentally.<BR>One is a two-plate type through which yarn passes. The other is a bar type on which yarn passes.<BR>The coefficient of yarn friction calculated, from the tension value decreases with an increase in yarn tension and increases with an increase in yarn speed. The effect of humidity is generally negligible, but the coefficient of friction for cotton yarn increases with an increase in humidity.<BR>The tension caused by the friction contains a high-frequency component, probably due to stick slip, the amount of its variations being nearly proportional to the mean value of the tension.
社団法人日本繊維機械学会の論文