Guide mechanism for tensioning a weft thread presented to a cutt

Details Guide mechanism for tensioning a weft thread presented to a cutt Guide mechanism for tensioning a weft thread presented to a cutt

1991-01-10

1992-04-21

Falik, Andrew M.

Textiles: weaving

Weft manipulation

Tensions

139302, 139450, D03D 4734

Patent

active

051058561

ABSTRACT:
A guide mechanism for presenting a weft thread to a cutter, especially in an air jet loom, has a weft thread guide pin which is driven up and down in synchronism with the beat-up motion of a loom slay, so that a beat-up weft thread is stretched by the guide pin either due to the return motion of the slay or by a horizontal motion component imparted to the guide pin in addition to its vertical movement. During the forward stroke of the beat-up motion of the slay the guide pin is out of the way of the weft thread. The cutting takes place when the weft thread is stretched across the cutter. The return motion of the slay and a forward motion of the guide pin can be combined for applying the proper tension to the weft thread to be cut.

REFERENCES:
patent: 4275773 (1981-06-01), Shibata
patent: 4784188 (1988-11-01), van Mullekom

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