| 摘要 |
A shredded tobacco supply device for a cigarette manufacturing machine includes a separation throat ( 20 ) diverging from a gravity chute ( 18 ) through which shredded tobacco is let fall down, and an extension ( 68 ) extending from the outlet ( 20 b) of the separation throat ( 20 ) and forming an air confluent nozzle ( 69 ) in cooperation with the trough bottom ( 38 ) of a fluid bed trough ( 36 ). The air confluent nozzle ( 69 ) produces a transport flow by joining together primary and secondary air jets J<SUB>1 </SUB>and J<SUB>2 </SUB>used for winnowing the shredded tobacco, and the transport flow causes a shred mixture obtained by the winnowing to be conveyed along a conveyance surface ( 38 ) toward a tobacco band.
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