Apparatus for block changing in a ring spinning machine

Details Apparatus for block changing in a ring spinning machine Apparatus for block changing in a ring spinning machine

1990-01-10

1991-08-06

Hail, III, Joseph J.

Textiles: spinning, twisting, and twining

Apparatus and processes

Monitor and control

57281, D01H 918

Patent

active

050366564

ABSTRACT:
An apparatus for carrying out a block-change in a ring spinning machine, in which a block of roving bobbins which each supply an associated spinning station are changed together when the rovings wound on the bobbins run out. Preferably, more than one block of roving bobbins is provided. The roving bobbins used to form a block are combined in such a manner that all of them have at least substantially the same length of roving wound on them. The end of the roving on at least one of the bobbins of the block is detected before that end passes through the associated drafting unit, and the block-change is triggered at an instant of time when the roving end has not yet passed through the drafting unit.

REFERENCES:
patent: 4563873 (1986-01-01), Tooka
patent: 4609915 (1986-09-01), Erkens
patent: 4660370 (1987-04-01), Matsui et al.
patent: 4676442 (1987-06-01), Tholander et al.
patent: 4771597 (1988-09-01), Igel et al.

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