B - Operations – Transporting – 65 – H
Patent
B - Operations, Transporting
65
H
28/53
B65H 51/20 (2006.01) B65H 51/22 (2006.01)
Patent
CA 1070489
ABSTRACT A thread feeder for use in textile machines, of the type including a rotary drum on which a thread issuing from a thread bobbin is wound tangentially to form a thread reservoir. The thread is removed from the drum in tangential direction over a removal edge and passes through a stationary guide element disposed at a radially spaced location relatively to the drum, generally at the level of the removal edge. The device further includes a thread control element movable transversely to the thread and located generally at the level of the removal edge of the drum when the thread is being unwound. According to the invention, the thread control element is located in the path of the thread between the drum and the stationary guide element and is arranged to move below the level of the removal edge when not subjected to thread tension, the movement of the control element being caused by its own weight or by a spring. Accordingly, when the thread becomes loose between the textile machine and the feeder, the drum winds back the already unwound thread in the wrong direction onto the removal edge region of the drum for temporary storage of the thread.
277643
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