Method for simultaneously changing bobbins in a fly frame and apparatus for carrying out the method
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United States of America Patent
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Jan 25, 1983
Grant Date -
N/A
app pub date -
Nov 20, 1981
filing date -
Nov 20, 1980
priority date (Note) -
Expired
status (Latency Note)
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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.
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