Cleaning head and cleaning device for cleaning a spinning rotor along with a method for cleaning a spinning rotor

A cleaning head for a cleaning device used to clean a spinning rotor that has a fiber slide wall, a fiber collection groove, and an open edge at an uppermost portion of the fiber slide wall, wherein the cleaning device has a feed device that feeds the cleaning head into a fixed predetermined cleaning position in an interior of the spinning rotor, the cleaning head comprising:

• a cleaning element formed as a scraper element;
• the scraper element arranged on the cleaning head at a location such that, in the fixed predetermined cleaning position of the cleaning head in the interior of the spinning rotor, the scraper element is disposed against and extends to or partially outward from the interior of the spinning rotor past the open edge of the spinning rotor for cleaning the open edge of the spinning rotor;
• and
• wherein the scraper element comprises a scraper edge formed by a beveled contour.

A cleaning device for cleaning a spinning rotor that has a fiber slide wall, a fiber collection groove, and an open edge at an uppermost portion of the fiber slide wall, the cleaning device comprising:

• a cleaning head;
• a feed device that feeds the cleaning head into a fixed predetermined cleaning position in an interior of the spinning rotor;
• the cleaning head comprising
• a cleaning element formed as a scraper element comprising a unitary member with a continuous elongated scraper edge at an end thereof turned towards the spinning rotor, the unitary member oriented on the cleaning head such that the scraper edge extends longitudinally into the spinning rotor transverse to the fiber collection groove;
• and
• the scraper element arranged on the cleaning head at a location such that, in the fixed predetermined cleaning position of the cleaning head within the interior of the spinning rotor, the scraper edge is disposed longitudinally against the fiber slide will and extends to or partially outward from the interior of the spinning rotor past the open edge of the spinning rotor for cleaning the open edge of the spinning rotor.

A method for cleaning a spinning rotor having a fiber slide wall, a fiber collection groove, and an open edge at an uppermost portion of the fiber slide wall, the method comprising:

• feeding a cleaning device having a cleaning head into a fixed predetermined cleaning position in the interior of the spinning rotor, the cleaning head having a cleaning element defined as a scraper element, wherein at the fixed predetermined cleaning position, the scraper element is disposed against the open edge and extends to or partially outward from the interior of the spinning rotor beyond the open edge;
• at the fixed predetermined cleaning position, cleaning the open edge of the spinning rotor with the scraper element;
• and
• wherein at the fixed predetermined cleaning position of the cleaning head, the spinning rotor is also pneumatically cleaned with a first compressed air stream.