| 摘要 |
<p>The present invention prevents a portion of a weft extending in the main picking nozzle of a jet loom from falling off the main picking nozzle and prevents coils of the weft stored on the weft storage drum of a weft measuring and storing device from being disheveled in cutting a portion of the weft extending between the main picking nozzle and a mispicked weft. A main picking nozzle (2) is connected through a solenoid valve (34) to a low-pressure compressed air tank (35). A blow nozzle (11) and a cutting blade (22) are disposed near the main picking nozzle (2). Upon the detection of a mispicked weft (Yb) by a mispicked weft detecting device (6), a pneumatic cylinder actuator (7) makes a weft cutting device (5) inoperative. Air is blown through the blow nozzle (11) to blow a weft (Y1) continuous with the mispicked weft (Yb) through a weft guide duct (8) to a drawing mechanism including a driving roller (13) and a driven roller (15), and then, the driving roller (13) and the driven roller (15) draw the weft (Y1). When the weft (Y1) is drawn by the drawing mechanism, the cutting blade (22) cuts the weft (Y1) off a weft Y extending in the main picking nozzle (2). The solenoid valve (34) is opened in synchronism with the weft cutting operation of the cutting blade (22) to apply air jet to the weft (Y) so that the effect of tensile pull acting on the weft (Y) is neutralized by the counteracting forc of the air jet. <IMAGE></p> |
