Method and apparatus for start-spinning a thread on open-end spi

Details Method and apparatus for start-spinning a thread on open-end spi Method and apparatus for start-spinning a thread on open-end spi

1975-12-02

1977-11-29

Watkins, Donald

Textiles: spinning, twisting, and twining

Apparatus and processes

Web material

57 5889, 57156, D01H 1500

Patent

active

040599469

ABSTRACT:
In start-spinning a thread, which has to be performed after a condition in which the entire machine has been stopped or after a thread break, the individual working conditions have to be maintained as precisely as possible in order to keep the start-spinning points produced at the same spinning point and at different spinning points as uniform as possible and in order to ensure that they are of sufficient strength. An important criterion in this connection is the size and thickness of the ring of fibers located in the spinning rotor, on which the end of the thread is placed after it has been returned and from which the end of the thread is then drawn off again. This ring of fibers significantly influences the appearance and quality of the start-spinning point of the thread. In order to provide a situation in which it makes no difference whether start-spinning is performed after a brief standstill period or after an extended stand-still period, the silver feed of the spinning unit is switched on briefly prior to the actual start-spinning operation, while the rotor is still stopped. This ensures that the fiber tuft, which extends into the area of the opening means, is the same prior to every start-spinning operation, irrespective of the period of time during which the respective spinning point was stopped.

REFERENCES:
patent: 3791128 (1974-02-01), Landwehrkamp et al.
patent: 3810352 (1974-05-01), Miyazaki et al.
patent: 3854274 (1974-12-01), Bartling
patent: 3879926 (1975-03-01), Bartling et al.
patent: 3939638 (1976-02-01), Bruckert et al.
patent: 3945183 (1976-03-01), Landwehrkamp et al.
patent: 3950926 (1976-04-01), Stahlecker

Affiliated with

Also associated with

Rating

Method and apparatus for start-spinning a thread on open-end spi does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for start-spinning a thread on open-end spi, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for start-spinning a thread on open-end spi will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1629479