| 摘要 |
A sliver feeding device for an open-end spinning frame, comprising a sliver draw-in roller and a sliver feed trough pivotable about a supporting shaft for movement toward and away from the draw-in roller. The draw-in roller has an annular sliver conveying collar which defines a sliver nip between the collar and the feed trough, and the feed trough has opposed laterally spaced bars for receiving the collar therebetween to guide the sliver at the nip. The draw-in roller is rotatably supported so as to permit a predetermined amount of axial movement of the collar between the guide bars of the feed trough. Similarly, a predetermined amount of axial movement of the feed trough is permitted on the supporting shaft. The collar has axial end faces each comprising a respective cleaning device. The guide bars of the feed trough have inwardly facing bevels which, in connection with the axial play of the feed trough on the supporting shaft, assure automatic pivoting of the feed trough into its operating position.
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