Method to engage and insert sliver into free fiber spinning unit

Details Method to engage and insert sliver into free fiber spinning unit Method to engage and insert sliver into free fiber spinning unit

1989-06-29

1990-06-12

Petrakes, John

Textiles: spinning, twisting, and twining

Apparatus and processes

Threading up

57 90, 57261, 57263, 57281, 57408, D01H 1502, D01H 140, D01H 918, D01H 112

Patent

active

049322010

ABSTRACT:
A method is disclosed for automatically engaging and inserting sliver fed from a spinning can into a spinning unit by means provided on a movable unit which comprises providing a spinning can containing a quantity of sliver and positioning a segment of sliver located between a coiler and the spinning can on a vertical plane and a horizontal plane. A first portion of the segment of sliver is clamped, engaged and gripped by gripping means at a second portion other than at the first portion. The sliver is broken at a portion between the first and second portions to leave a first broken end of the sliver adjacent the first portion and a second broken end of the sliver adjacent the second portion. The second broken end of the sliver is positioned in correspondence with an intake of a condenser of the spinning unit, and is introduced in the intake of the condenser. Substantially simultaneously air is introduced under pressure downstream of the intake of the condenser. The second broken end of the sliver is then released from the gripping means and is aspirated and thrust into the spinning unit. The movable unit is then repositioned during an inactive phase, and a spinning process is started on the spinning unit. A device for performing the method is also disclosed.

REFERENCES:
patent: 4078369 (1978-03-01), Brandis
patent: 4150534 (1979-04-01), Raasch
patent: 4537018 (1985-08-01), Tooka
patent: 4735040 (1988-04-01), Pircher
patent: 4809495 (1989-03-01), Condotta
patent: 4852218 (1989-08-01), Lenaertz

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