| 摘要 |
A bag forming machine of the top stacking type has means at the stacking station whereby a stack (12) of bags are clamped during high acceleration arising in their transfer from the stacking position to a discharge conveyor. The stack can therefore be transferred without interrupting the rhythm of delivery of bags to the stacking station. The bags are clamped at their "cut" ends by a first clamp (14, 15) during stacking; when a stack is complete, the first clamp is released and a second clamp (22, 24) activated and moved perpendicularly to the stack so as to apply dragging motions to the stack to move the "cut" ends of the bags away from the first clamp and to present the "weld" ends of the bags at a roll nip (30, 31) which feeds to the conveyor. <IMAGE> |
