Cleaning device for open-end spinning units

A cleaning device for the spinning rotor in an open end spinning unit of the type wherein a portion of the rotor has a fiber collecting groove formed therein, the spinning unit further being of the type where the rotor is carried by a housing and wherein a cover is disposed in a closed position wherein it closes a portion of said housing and is movable in an overturning direction relative to the housing to form a space with said housing, said device comprising means for stopping movement of said cover in said overturning direction for at least partially supporting said cover in a predetermined open position relative to said housing, an axially extending tube mounted on said cover for movement therewith, said tube having first and second end portions, said tube being slidably movable relative to said housing in an axial direction between an advanced position where said first end portion is disposed closely adjacent said annular groove of said rotor and said second end portion is in communication with a source of pressure and a retracted position, said first end portion including baffle means for directing fluid substantially tangentially with respect to said rotor to thereby rotatably drive said rotor while cleaning said annular groove, curtain means for sealing the space formed between said cover and said housing as said housing moves to said predetermined open position, and means for connecting said space to a source of suction.