Method and apparatus for controlling the roving take-up tension

Details Method and apparatus for controlling the roving take-up tension Method and apparatus for controlling the roving take-up tension

1982-09-29

1984-08-28

Petrakes, John

Textiles: spinning, twisting, and twining

Apparatus and processes

Driving

57 98, 57264, D01H 126

Patent

active

044675925

ABSTRACT:
Described is a bobbin lead roving machine in which target r.p.m. values for the bobbin are found in advance for each of arbitrarily selected numbers of the layers of the roving taken up on the bobbin and are stored in a micro-compouter, there r.p.m. values are compared to actual r.p.m. values for respective ones of said arbitrarily numbers of the layers, and compensation is made automatically for any offsets resulting from such comparison for causing the r.p.m. of the bobbin to be within a control limit, in a manner that the take-up tension placed on the roving is kept constant during spinning since the beginning until the end of winding on the bobbin for producing the roving of uniform weight (with a constant weight/unit length).

REFERENCES:
patent: 3986330 (1976-10-01), Kuttruff et al.
patent: 4056926 (1977-11-01), Stuber
patent: 4134253 (1979-01-01), Handa et al.
patent: 4168604 (1979-09-01), Mannhart
patent: 4375744 (1983-03-01), Briner et al.

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