Method of winding yarn to cross-wound bobbin at workstation of rotor spinning machine and apparatus for making the same

摘要

The change in rotating velocity of a yarn (4) drawing mechanism (5) separate drive (52) in the course of yarn winding onto a cross-wound bobbin (61) causes the change in the yarn (4) drawing velocity in order to maintain a required tension of the yarn (4) between the drawing mechanism (5) and the winding mechanism (6). At the same time, the change in rotating velocity of the yarn (4) drawing mechanism (5) separate drive (52) causes accordingly the change in rotating velocity of a separate drive (13) of a fiber strand (2) feeding mechanism (1) in order to maintain a required draft and fineness of the spun yarn (4). Apparatus for making the above-described method comprises a yarn (4) tension sensor (81), which is integrated within a mechanical compensator, which reaches in the yarn (4) path.