METHOD FOR JOINING FIBERS ONTO THE FREE ENDS OF TWO THREADS OF A YARN PRODUCED BY AN INTEGRATED OPEN END SPINNING AND TWISTING PROCESS AND A TWO-FOR-ONE SPINNING AND TWISTING APPARATUS FOR PERFORMING THE METHOD
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United States of America Patent
Stats
-
Apr 2, 2002
Grant Date -
Dec 13, 2001
app pub date -
Apr 30, 2001
filing date -
Apr 29, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method for spinning fibers onto the free ends of the two threads of a yarn that is produced during an integrated spinning and twisting process and a two-for-one spinning and twisting apparatus for performing the method are provided. The method includes gripping a twisted yarn, separating two threads of the twisted yarn in a manner such that the twist which was originally present in each individual thread prior to the doubling of the thread with the other thread returns to the now separated thread portion, and forming a thread loop of each separated thread portion. Each thread loop is clamped and respective portions of the two branches of the thread loop extend to a spinning rotor and the spindle hollow axle. Spinning is commenced in coordination with winding and the thread loop is dissolved as the now joined thread is drawn into the spindle hollow axle.
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