Improving quality of OE spun yarn

During the formation of OE yarns on high frequency spinning rotors, dynamic shocks occur which lead to variations in the yarn tension. It is well known that by increasing the spinning speed the irregularity of yarn also increases. The variation of the yarn tension reduces the quality of the product (yarn). The aim of this research work is to find method to decrease the yarn irregularity without decreasing the spinning speed. In this paper also the way of improving of the quality of OE spun yarn is discussed. The OE yarn irregularity has been decreased by changing the construction of existed OE rotor's separator (OERS). The yarn passes through the yarn lead-funnel to the yarn lead-out tube. The variation of the yarn tension results in the change of the yarn friction on the yarn lead-out wall of the funnel. Then concentric protrusion formed at the centre on the surface of the base lead-out funnel lets the yarn contact the separator and it presses a spring disposed in a recess formed in the separator. As a result, the spring is deformed (axially) and allows the reciprocation the yarn lead-out funnel and yarn lead-out tube, whereby the vibration leading to changes in the yarn tension are absorbed.

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