Patent ID: 6341484
Filing Date: 2002-01-29
Classification: D01H

Abstract:
A drafting frame for a spinning machine comprising:a drafting zone comprising a roller support, and a plurality of roller pairs successively traversed by respective slivers for delivery to respective spinning stations whereby each sliver is drafted in a drafting field plane between successive roller pairs, said drafting zone having at least one output roller; a feed unit on said support spaced from the output roller and supplying each sliver to the respective spinning station; a suction unit forming a sliver compactor between said output roller and said feed unit and comprising a moving transport surface having at least one perforation assigned to each sliver and traveling across a suction opening applying suction to the respective sliver to compact the sliver; and a shielding element juxtaposed with said surface and defining with said surface in said suction unit a space openable toward the exterior and into which said sliver is insertable, said perforation being formed by a row of orifices in said moving transport surface riding across a shoe having said suction opening formed therein, said shielding element being integral with said shoe at one end and being formed with a resilient flange at an opposite end, said flange being deflectable by said sliver to open said space and engageable with a portion of said shoe to close said space.