Device for Cleaning Roller Surfaces of a Drafting Arrangement

Abstract

The invention relates to an apparatus on a spinning preparation machine having a drafting system (1) for processing a fiber material (G) which is moved by the drafting system in the direction of conveyance (F), including a plurality of roller pairs arranged one after the other with upper rollers and lower rollers (2, 3; 4, 5; 6, 7), having at least two elongated stripping devices (9) which are each in contact with one of the upper rolls (3, 5, 7) along their stripping edges (K) for removing dirt and other contaminants, and having a suction hood (AH) which is mounted above the stripping devices (9) and is connected to a vacuum source (U). To avoid accumulations of components that have been stripped off the rollers in the area of the stripping devices and to improve the suction effect, it is proposed that each stripping device (9) be mounted in its own suction channel (11, 12, 13), wherein the stripping edge (K) of the respective stripping device (9) protrudes beyond its suction channel in the area of a first opening (O1), and the individual suction channels are each mounted on a bottom wall (8) provided with openings (B1, B2, B3), wherein the respective suction channel (11, 12, 13) is provided with a second opening (O2) opposite the first opening (O1), this second opening being opposite one of the openings (B1, B2, B3) of the bottom wall (8), wherein the suction hood (AH) protrudes beyond the openings (B1, B2, B3) of the bottom wall and is mounted on the side of the bottom wall (8) which is opposite the suction channels (11, 12, 13).

Dependencies are inferred from the claim text.