Weaving loom with pneumatic weft thread injection

Details Weaving loom with pneumatic weft thread injection Weaving loom with pneumatic weft thread injection

1988-03-03

1989-07-25

Jaudon, Henry S.

Textiles: weaving

Weft manipulation

Weaving with stationary weft supply

139 13R, 139452, D03D 5100

Patent

active

048503991

ABSTRACT:
To provide for accurately timed injection of selected lengths of weft threads to shuttles moving, in sequence, in front of injectors (85, 545), a continuously rotating measuring drum (32) has the weft thread (51, 180) passing in front thereof, the weft thread being clamped against the measuring roller by a pressure roller (35) or a selected one of a plurality of pressure rollers (511), the operating mechanism being coupled to and driven by the main drive (21, 22, 23, 24) of the weaving loom so that exact synchronism of movement of the shuttle in front of the injectors is ensured as the thread is being delivered. Auxiliary functions such as operation of a thread brake (50), a thread retraction mechanism (56), thread cutting by a cutter (99) and the like can, additionally, be controlled from a main drive shaft (34, 54) of the injection apparatus which is in positive geared driving engagement (22; 91-96) with the machine or loom drive shaft (22), or electrically controlled by an electrical control unit (552) which receives drive or shuttle position inputs (554) from the machine drive.

REFERENCES:
patent: 3049155 (1962-08-01), Livermore
patent: 3256914 (1966-06-01), Hortmann
patent: 3618640 (1971-11-01), Linka
patent: 3626990 (1971-12-01), Linka
patent: 3749135 (1973-07-01), Linka
patent: 4410017 (1983-10-01), Linka

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