Open-end spinner pneumatic fibre feed - detaches fibres from wall round sliver loosening roller to be led to zone of fibre feed channel where airflow has the highest speed

摘要

In the pneumatic fibre feed operation, for an open-end spinner, the fibres in the fibre feed channel which have been detached from the preceding guide wall around the sliver loosening roller, are detached and directed to the zone where there is the highest air flow speed. Also claimed is an appts. where the concave surrounding wall (12), leading to the fibre feed channel (4), leads into the channel (4) through a convex surface (41) into the wall (42) of the channel (4), so that a tangent (43) at the end of the channel (4) with the surrounding wall (12) in front intersects the facing wall (420) of the channel (4). An auxiliary air stream, against the direction of the loosening roller rotation towards the feed channel, detaches fibres from the wall and holds the fibres detached from the opposite wall where the air has the fastest flow speed. The auxiliary air stream width matches the width of the loosening roller clothing. The fibres detached from the wall are carried to the zone in the fibre feed channel where the auxiliary air stream meets the carrier air stream, when the matching of the flow profile ends. USE/ADVANTAGE - The system is for the pneumatic feed of loosened fibres for an open-end spinner. The operation gives an improved extension of the fibres in the feed channel.