The invention relates to a workstation of a rotor spinning machine including a spinning rotor (3) mounted so as to be rotatable about a rotational axis (X), wherein the workstation comprises a cleaning unit (1) including a mechanical cleaning element (2) for cleaning an inner surface (21) of the spinning rotor (3). According to the invention, it is provided that the cleaning element (2) is movably arranged on the workstation in such a way that, starting from a neutral position in which the cleaning element (2) is not in contact with the spinning rotor (3), the cleaning element (2) can be moved into various cleaning positions for various inner diameters of the spinning rotor (3), wherein the cleaning element (2), in the particular cleaning position, is in contact with the inner surface of the spinning rotor (3).

A cleaning device (1) for cleaning a rotor plate (2) of a spinning rotor (3) comprises a receptacle (6), a cleaning head (4) mounted on the receptacle (6), which can be advanced toward the spinning rotor (3) for cleaning and which includes at least one cleaning element (5, 5a, 5b), and comprising a brake device (11) for decelerating and/or holding the spinning rotor (3) once the cleaning head (4) has been advanced. The cleaning head (4) comprises an at least partially cylindrical receiving area (7) for the spinning rotor (3), which defines an axial direction (AR) and a radial direction (RR) of the cleaning head (4). The brake device (11) contains multiple, in particular two, brake elements (12), which are mounted on the cleaning head (4) in such a way that they are movable from a neutral position into a braking position, and each of the multiple brake elements (12) is movable with the aid of its own drive (13).

A cleaning device (1) for cleaning a rotor plate (2) of a spinning rotor (3) comprises a receptacle (6), a cleaning head (4) mounted on the receptacle (6), which can be advanced toward the spinning rotor (3) for cleaning and which includes at least one cleaning element (5, 5a, 5b), and comprising a brake device (11) for decelerating and/or holding the spinning rotor (3) once the cleaning head (4) has been advanced. The cleaning head (4) comprises an at least partially cylindrical receiving area (7) for the spinning rotor (3), which defines an axial direction (AR) and a radial direction (RR) of the cleaning head (4). The brake device (11) contains multiple, in particular two, brake elements (12), which are mounted on the cleaning head (4) in such a way that they are movable from a neutral position into a braking position, and each of the multiple brake elements (12) is movable with the aid of its own drive (13).

A spinning machine includes a plurality of work stations arranged side by side between two front-side ends along at least one longitudinal side of the spinning machine. Each work station has a draw-off device, and an individual drive for the draw-off device. Each work station further includes additional driven work elements for production and winding of a yarn, the additional work elements including at least a feed device, a spinning chamber, and a winding device. A suction device generates negative pressure at the work stations and includes at least one negative pressure source and at least two negative pressure channels. Each of the negative pressure channels extends in a longitudinal direction of the spinning machine only over one part of the work stations.

A spinning machine includes a plurality of work stations arranged side by side between two front-side ends along at least one longitudinal side of the spinning machine. Each work station has a draw-off device, and an individual drive for the draw-off device. Each work station further includes additional driven work elements for production and winding of a yarn, the additional work elements including at least a feed device, a spinning chamber, and a winding device. A suction device generates negative pressure at the work stations and includes at least one negative pressure source and at least two negative pressure channels. Each of the negative pressure channels extends in a longitudinal direction of the spinning machine only over one part of the work stations.

A method for operating a spinning device of a rotor spinning machine, and associated rotor spinning machine are provided in which a spinning rotor includes a rotor cup and a rotor shaft that is set into rotation with the aid of a drive situated in a drive housing. The drive is operatively connected to the rotor shaft, and the rotor shaft is supported in the drive housing by a bearing. The rotor cup is situated in a rotor housing to which vacuum is applied, and the rotor shaft extends between the drive housing and the rotor housing through a connection opening such that when a vacuum is drawn in the rotor housing during a spinning process, a vacuum is also drawn in the drive housing. Compressed air is feed into the drive housing via an air inlet at intervals to clean one or both of the drive housing and the bearing.

In a method for cleaning a spinning rotor (4) of a spinning device (1) of an open-end spinning machine, at least one cleaning measure (RM) is carried out on the spinning rotor (4) with the aid of a pneumatic and/or a mechanical cleaning device (7), wherein settings (E), with the aid of which the at least one cleaning measure (RM) is carried out, are predefined by a control unit (24) of the open-end spinning machine. Various parameter (P) are stored in a memory bank (25). Moreover, previously empirically determined settings (E) for carrying out the cleaning measure (RM), which are suitable for the particular parameters (P), and/or rules (R) for determining settings (E) which are suitable for the particular parameters (P) are stored. The settings (E) for carrying out the at least one cleaning measure (RM) are automatically determined by the control unit (24) with the aid of the memory bank (25) depending on presently given parameters (P). In the case of an open-end spinning machine comprising at least one spinning device (1) including a spinning rotor (4), comprising at least one cleaning device (7), and comprising a control unit (24), the control unit (24) is designed for carrying out the described method.

In a method for cleaning a spinning rotor (4) of a spinning device (1) of an open-end spinning machine, at least one cleaning measure (RM) is carried out on the spinning rotor (4) with the aid of a pneumatic and/or a mechanical cleaning device (7), wherein settings (E), with the aid of which the at least one cleaning measure (RM) is carried out, are predefined by a control unit (24) of the open-end spinning machine. Various parameter (P) are stored in a memory bank (25). Moreover, previously empirically determined settings (E) for carrying out the cleaning measure (RM), which are suitable for the particular parameters (P), and/or rules (R) for determining settings (E) which are suitable for the particular parameters (P) are stored. The settings (E) for carrying out the at least one cleaning measure (RM) are automatically determined by the control unit (24) with the aid of the memory bank (25) depending on presently given parameters (P). In the case of an open-end spinning machine comprising at least one spinning device (1) including a spinning rotor (4), comprising at least one cleaning device (7), and comprising a control unit (24), the control unit (24) is designed for carrying out the described method.

A cleaning head of a cleaning device for cleaning a spinning rotor, by means of a feed device, be fed into a predetermined cleaning position in the interior of the spinning rotor. The cleaning head has a cleaning element formed as a scraper element arranged in such a manner that, in the predetermined cleaning position of the cleaning head, it is fed to the open edge of the spinning rotor. A cleaning device for cleaning a spinning rotor features a corresponding cleaning head. With a method for cleaning a spinning rotor by means of the cleaning device, after feed of the cleaning head into the cleaning position, the open edge of the spinning rotor is cleaned by means of the scraper element.

A cleaning head of a cleaning device for cleaning a spinning rotor, by means of a feed device, be fed into a predetermined cleaning position in the interior of the spinning rotor. The cleaning head has a cleaning element formed as a scraper element arranged in such a manner that, in the predetermined cleaning position of the cleaning head, it is fed to the open edge of the spinning rotor. A cleaning device for cleaning a spinning rotor features a corresponding cleaning head. With a method for cleaning a spinning rotor by means of the cleaning device, after feed of the cleaning head into the cleaning position, the open edge of the spinning rotor is cleaned by means of the scraper element.