| 摘要 |
Counter and stacker for flat articles such as paper bags and the like. The stacker includes a frame having laterally spaced vertically extending side guides, which may be adjusted to converge towards each other at their lower ends. Conveyor chains move downwardly along the guides. The chains have spaced flights extending horizontally therefrom towards each other, with the flights extending from opposite chains registering with each other during downward travel of the flights to provide separated downwardly movable platforms spaced along the chains. The chains are driven by a Geneva drive mechanism to provide dwells in downward travel of the flights to accelerate and decelerate the flights and establish a series of holding areas during the periods of dwell, and to advance the flights downwardly ahead of the articles stacked at accelerated speeds when initially traveling from a holding station. The stacker is driven by the bag machine at a speed related to the delivery speed of the bag machine to effect the stacking of a preselected number of bags and to thereby count the bags stacked. The speed of the stacker may be varied in accordance with the size of stacks selected.
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