Patent ID: 6105398
Filing Date: 2000-08-22
Classification: D04B

Abstract:
A yarn feeder device (14), in particular for elastic yarns (1), comprising:a tensioning device (15), which exerts a force acting on the yarn in the longitudinal direction of the yarn that is arranged to stretch the yarn to a defined tension value;a yarn feed wheel (16) around which the stretched yarn (1) can wrap and which receives the yarn in a few windings in such a way that the yarn tension upstream of the yarn feed wheel (16) does not influence the yarn tension downstream of the yarn feed wheel (16), or does so only insignificantly, anda motor (17), which is drivingly coupled to the yarn feed wheel (16) and is energized, independently of the tensioning device (15), in accordance with the current yarn demand and, independently of the tension of the yarn (1), in a segment downstream of the yarn feed wheel (16),characterized in that a yarn tension sensor (24) for detecting the yarn tension is disposed between the tensioning device (15) and the yarn feed wheel (16), and that the yarn tension is set by means of a controllable yarn brake (21, 22) on the basis of the yarn tension value ascertained by the yarn tension sensor (24).