Method for simultaneously changing bobbins in a fly frame and ap

Details Method for simultaneously changing bobbins in a fly frame and ap Method for simultaneously changing bobbins in a fly frame and ap

1981-11-20

1983-01-25

Petrakes, John

Textiles: spinning, twisting, and twining

Apparatus and processes

Doffing or donning

57274, D01H 908

Patent

active

043696210

ABSTRACT:
A method and an apparatus for simultaneously changing bobbins in a fly frame wherein flyers supported from above are arranged in a zigzag fashion in front and back rows. The method comprises supplying empty bobbins in a zigzag fashion on pegs mounted on a conveyor of a bobbin changing apparatus; advancing bobbin changing arms of the bobbin changing apparatus to full bobbins on the fly frame; simultaneously doffing the full bobbins; retracting the arms with the full bobbins while the conveyor is moved so as to pass the full bobbins through spaces between adjacent empty bobbins; inserting the full bobbins onto empty pegs of the conveyor; moving the conveyor to locate the empty bobbins at positions corresponding to the arms; advancing and lifting the arms to remove the empty bobbins from the pegs; further advancing the arms with the empty bobbins while the conveyor is moved so as to pass the empty bobbins through spaces between adjacent full bobbins on the conveyor; donning the empty bobbins on the fly frame; and retracting the arms.

REFERENCES:
patent: 3344593 (1967-10-01), Morikawa et al.
patent: 3681905 (1972-08-01), Furtmeier et al.
patent: 3905184 (1975-09-01), Takai et al.
patent: 3935699 (1976-02-01), Iida et al.
patent: 4324094 (1982-04-01), Cicerone

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