A method of spinning yarn at the workstation of a rotor spinning machine and a device for its implementation

摘要

After the yarn (1) has broken, the end of the yarn (1) is found on the spool, the yarn (1) is guided into the working path between the draw-off device (4) and the winding device and the yarn (1) is clamped between the draw-off rollers (41, 42) the yarn end (1) is formed and the work station is controlled by an electronic control device (5) to perform the spinning operation. After the yarn (1) has been clamped by the draw-off rollers (41, 42) of the draw-off device (4), the spinning unit (2) is opened, thereby activating the yarn length compensator (6) and the yarn draw-off device (4). to a defined rotation as in the production of the yarn (1), whereby a yarn reserve (1) is deposited behind the draw-off device (4), which is caught by the compensator (6). BACKGROUND OF THE INVENTION The invention relates to a yarn piecing device (1), comprising a spinning unit (2) over which a yarn draw-off device (4) is arranged and further a yarn length compensator (6) located between the draw-off device (4) and the winding device. and the yarn distribution and winding device (1). The spinning unit (2) is re-openable and closable for cleaning purposes. The workstation of the device further comprises an electronic control device (5) connected to the individual workstation nodes. The spinning unit (2) is assigned a sensor (24) for opening the spinning unit (2), which is coupled to an electronic control device (5) which is provided with software for automatically creating a spinning backup of the yarn (1) in the compensator (6) defined by the rotation of the withdrawal device. the yarn device (4) as in the production of the yarn (1) initiated by simply opening the spinning unit (2).