Process and apparatus for piecing a thread in open-end spinning

Details Process and apparatus for piecing a thread in open-end spinning Process and apparatus for piecing a thread in open-end spinning

1994-09-09

1995-05-16

Hail, III, Joseph J.

Textiles: spinning, twisting, and twining

Apparatus and processes

Piecing up

57411, D01H 450

Patent

active

054149851

ABSTRACT:
For piecing a thread in an open-end spinning apparatus having a fibre collection surface, a sliver is supplied to the clothing of an opening cylinder and opened thereby into fibres and is supplied in this form to the fibre collection surface. There, the fibres are incorporated into the end of a returned thread which is then drawn off continuously. During this, the leading end of the sliver, forming a tuft, is supplied for piecing to the opening cylinder, at a penetration depth which is greater than the penetration depth after piecing, whereas piecing is carried out in a manner conventional per se, matched to a reduction in the penetration depth. This reduction in the penetration depth is carried out suddenly in order to counter thick points in the joint. To carry out the process, a penetration depth alteration apparatus is provided which is in controlled connection with a control apparatus.

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