Method of and apparatus for spinning yarn after break on workstation of a rotor-spinning machine

摘要

The method of yarn yarn breakage at the working position of the rotor spinning machine provided with the control unit (6) and the separate drives at least the yarn feeding device (14) of the yarn (11) and the yarn draw-off device (3) which contains the yarn preparation steps (11) ) for setting up, the steps of preparing the spinning rotor (12) for plowing and final paving steps controlled by the control unit (6) comprising at least the feeding of the fiber sliver (2) into the opener device (13), lowering the yarn end of the yarn (11) onto the picking groove of the spreader the rotor (12), initiating the movement of the wound bobbin (41) towards the drive roller (42) and initiating the pulling and winding of the yarn (11). The feeding speed of the fiber sliver (2) is controlled in dependence on the withdrawal speed of the stripped yarn (11). The start and the progress of the final lacing steps are controlled according to the shape and actual weight of the spool (41) being wound and / or the actual moment of inertia of the spool being wound (41).