Yarn Draw-Off Unit of a Rotor Spinning Machine and Method for Producing a Yarn with the Aid of a Rotor Spinning Machine

摘要

The invention relates to a yarn draw-off unit of a rotor spinning machine, having a draw-off nozzle (21) which projects into a spinning chamber (22) of the rotor spinning machine, and a draw-off conduit (23) for a yarn (5) produced within the spinning chamber (22), the draw-off conduit (23) being arranged downstream of the draw-off nozzle (21) in the draw-off direction of the yarn (5) that is drawn off from the spinning chamber (22). The draw-off conduit (23) comprises a helical section (24), with the aid of which a false twist can be imparted to the yarn (5) within the draw-off conduit (23). Furthermore, a draw-off nozzle for a rotor spinning machine is described, the draw-off conduit (23) of which comprises a helical section (24), with the aid of which a false twist can be imparted to the yarn (5) within the draw-off nozzle (21). Finally, the invention relates to a method for producing a yarn (5) with the aid of a rotor spinning machine. The method is characterised in that the yarn (5) is exposed to torque within a helical section (24) of the draw-off conduit (23), said torque causing the yarn (5) to rotate about its longitudinal axis, the direction of rotation of the rotation corresponding to the direction of rotation that is imparted to the yarn (5) by the spinning rotor (3).

主权项

1. Yarn draw-off unit of a rotor spinning machine that has a draw-off nozzle (21) projecting into a spinning chamber (22) of the rotor spinning machine, and a draw-off conduit (23) for yarn (5) produced inside the spinning chamber (22), wherein the draw-off conduit (23) is arranged downstream of the draw-off nozzle (21) in the draw-off direction of the yarn (5) that is drawn off from the spinning chamber (22), characterized in that the draw-off conduit (23) has a helical section (24) with whose help a false twist can be imparted to the yarn (5) inside the draw-off conduit (23).