12 extending from a terminal edge 11 of the sliver guide portion 8 39 arcuately along a portion of the circumferential periphery of the opening roller 2 in the direction of the rotation thereof and a third debris guide portion 13 extending from the fiber guide portion 12 outwardly away from the opening roller 2 according to the present invention the guide plate 8 is of a unitary one piece construction whereby its guide portions 8 39 12 13 pivot unitarily toward and away from the sliver feed roller 6 and the opening roller 2 the guide plate 8 being spring biased as representatively indicated by the spring 10 toward the feed roller 6 and the opening roller 2 in this manner the sliver 4 is pressed by the sliver guide portion 8 39 of the guide plate 8 against the serrated surface of the feed roller 6 which in turn causes the sliver 4 to be fed along the sliver guide portion 8 39 to the opening roller 2 which operates to draw the fibers of the sliver 4 from the edge 11 of the sliver guide portion 8 39 in a combing like manner the debris guide portion 13 of the guide plate 8 cooperates with the housing 1 to define a debris discharge opening 14 through which dirt and debris in the sliver may be separated from the individual fibers thereof as hereinafter described since the sliver fiber and debris guide portions 8 39 12 13 of the guide plate 8 are formed as aforementioned as an integral one piece component no joints exist between the differing guide portions 8 39 12 13 in which individual fibers could catch and cause an accumulation of a flock of.