Abstract: A fiber processing line is formed of a plurality of fiber processing machines connected by a conveyor duct. A blower-conveyor is arranged for driving fiber tufts in an air stream through the conveyor duct. The blower-conveyor includes a discharge housing, a rotary impeller supported in the discharge housing; an inlet opening in the discharge housing for drawing the fiber material into the blower axially with respect to the impeller. The discharge housing includes a housing wall generally circumferentially surrounding the impeller and bounding a blower outlet which, similarly to the inlet, is connected to the duct. A waste separator is integrated in the blower-conveyor. The waste separator includes throughgoing openings in the housing wall for providing passages for waste from the fiber tufts upstream of the outlet opening as viewed in a direction of advance of the fiber tufts.

Abstract: A bale opener includes an opening roller arranged for travel over fiber bales, opening elements on the opening roller arranged to engage top faces of the fiber bales, a grate travelling with the opening roller and formed of a plurality of parallel spaced grate bars each having opposite first and second ends and an arm rigidly connecting the first ends of the bars. The arm is supported for pivotal motion about a generally horizontal axis. The grate is open at the second ends of the grate bars, and the opening elements project between the grate bars towards the bale top. An abutment is supported in a swinging path of the second ends for constituting a stop cooperating with the second ends for determining a limit of their swinging path.

Abstract: A spinning preparation system and method for air-conditioning the same wherein a spinning preparation system having a plurality of fiber processing machines connected together defines a continuous fiber transportation path. An air-conditioning system is provided which is connected in such a manner that conditioned air is delivered directly to the fiber transportation path.