Compressed air supply device for a weaving machine with pneumati

Details Compressed air supply device for a weaving machine with pneumati Compressed air supply device for a weaving machine with pneumati

1984-11-30

1987-03-24

Jaudon, Henry S.

Textiles: weaving

Weft manipulation

Weaving with stationary weft supply

D03D 4730

Patent

active

046517855

ABSTRACT:
This pneumatic supply device is designed for shuttle-free weaving machines with the picking of one or more weft threads (1, 2) by elements such as picking nozzles (5, 6) and nozzle relays (10), supplied with compressed air in accordance with predetermined sequences. A robot (25) connected to a picking sequence program support (26) drives, on one hand, electrovalves (12, 16) disposed in the compressed air inlets (13, 17) to the picking elements (5, 6, 10) and, on the other hand, switching members (20, 21) enabling these picking elements (5, 6, 10) to be supplied at at least two different pressures (P1, P2; p1, p2) selected as a function of the characteristics of the weft threads (1, 2) to be inserted. The switching members (20, 21) are, for example, proportional pressure reducers enabling the control of the air pressure in a tank (18, 22).

REFERENCES:
patent: 4143681 (1979-03-01), Kuda et al.
patent: 4143682 (1979-03-01), Jansa et al.
patent: 4410016 (1983-10-01), Manders
patent: 4512375 (1985-04-01), Deborde et al.

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