Method and apparatus for detaching fiber tufts from textile fiber bales as a function of bale height
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United States of America Patent
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Mar 5, 1996
Grant Date -
N/A
app pub date -
Sep 23, 1994
filing date -
Sep 24, 1993
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of detaching fiber tufts from an upper surface of fiber bales by a detaching device. Each fiber bale has, prior to performing a detaching operation thereon, a height portion defining an upper zone in which a fiber density increases downwardly; a height portion defining a lower zone in which the fiber density decreases downwardly; and a height portion defining a middle zone in which the fiber density is at a maximum, constant value as viewed vertically. The method includes the steps of propelling the detaching device at a travelling speed above the fiber bales in forward and return passes; detaching fiber tufts from the upper bale surface during the passes; periodically displacing the detaching device with a vertical feed as the bales are consumed; advancing the removed fiber tufts to a fiber tuft advancing device; and varying the travelling speed as a function of the decreasing actual height of the fiber bales.
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