Textiles: weaving – Weft manipulation – Weaving with stationary weft supply
Patent
1987-08-10
1989-03-28
Jaudon, Henry S.
Textiles: weaving
Weft manipulation
Weaving with stationary weft supply
D03D 4736
Patent
active
048155020
ABSTRACT:
A picking control method includes the steps of detecting a change in the supply yarn package during the weaving operation, preferentially setting a specific checking pin retracting time in which the checking pin is to be retracted for picking cycles for a predetermined time period after the detection of the change of the supply yarn package, and controlling the advancing and retracting operation of the checking pin on the basis of a new checking pin retracting time. A picking controller for carrying out this method has a supply yarn package change detector for detecting the change of the supply yarn package and for issuing a supply yarn package change detection signal, an initial data setting device for providing a checking pin retracting time in which the checking pin is to be retracted to release the weft yarn supplied from the new supply yarn package and wound on the measuring and storing drum, a data updating device generating a checking pin retracting time, a memory device, and a control unit.
REFERENCES:
patent: 4450876 (1984-05-01), Mullekom
patent: 4550753 (1985-11-01), Tsuji
patent: 4627474 (1986-12-01), Tholander
patent: 4673004 (1987-06-01), Rosseel et al.
patent: 4702285 (1987-10-01), Sugita
Jaudon Henry S.
Tsudakoma Corp.
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