Method and device for cutting rove at doffing in flyer frame

Details Method and device for cutting rove at doffing in flyer frame Method and device for cutting rove at doffing in flyer frame

1976-02-27

1977-04-05

Watkins, Donald

Textiles: spinning, twisting, and twining

Apparatus and processes

Delivery twist type

57 52, 57 67, 57156, D01H 124, D01H 126, D01H 916

Patent

active

040154165

ABSTRACT:
A method and device are disclosed for cutting a rove at doffing in a flyer frame, wherein during the normal winding operation thereof the rove drawn out from front rollers is passed through the center hole of a flyer top, the hole of a hollow leg of a flyer, and over a presser and wound on a driven bobbin which is arranged on a bobbin rail moving up and down along the bobbin guide arbor of the flyer. Just before the doffing, the supply of the rove from the front rollers is failed and the bobbin and the flyer are caused to continue rotations substantially at the same speed for a time period sufficient to allow a predetermined number of rotations of both the bobbin and flyer, whereby the rove between the flyer top and the front rollers is subject to a stronger twist than that given during the normal winding operation. This assures that the rove is always cut of itself at an optimum portion thereof at the doffing.

REFERENCES:
patent: 2701946 (1955-02-01), Bridges et al.
patent: 2896394 (1959-07-01), Johnson
patent: 3134217 (1964-05-01), Williamson
patent: 3174270 (1965-03-01), Blaschke
patent: 3357170 (1967-12-01), Pfeifer
patent: 3380238 (1968-04-01), Araki et al.
patent: 3681905 (1972-08-01), Furtmeier et al.
patent: 3782097 (1974-01-01), Nakamura et al.

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