Apparatus and method for stacking printed products, especially p

Details Apparatus and method for stacking printed products, especially p Apparatus and method for stacking printed products, especially p

1988-09-26

1989-12-12

Schacher, Richard A.

Sheet feeding or delivering

Delivering

Multiple discharge

271200, 271216, 4147883, 4147912, 4147945, 414907, B65H 2914

Patent

active

048862657

ABSTRACT:
Printed products are infed in an imbricated formation by a transport device to a stacker apparatus. These printed products are transported by a delivery belt conveyor and an infeed belt conveyor to a pivotably mounted infeed device. The outfeed end region of the infeed device opens into a stacker chute of a stacker device. At the infeed device there is arranged a support element. The printed products delivered by the infeed device to the stacker chute slide onto an elevationally displaceable stacker table. This infeed device is supported by the support element upon the stacked printed products. Governed by the pivotal motion of the infeed device, the stacker table of the stacker chute is incrementally lowered. As soon as sufficient printed products are available for forming a first partial stack in the stacker chute, this first partial stack is pressed by presser structure comprising piston-and-cylinder units and then this first partial stack is rotated about an upright axis through about 180.degree. in conjunction with the stacker chute. Now a second partial stack, turned through about 180.degree. with respect to the first partial stack, can be formed upon the first partial stack. At the stacker apparatus, there are arranged a number of such infeed devices and stacker devices, so that during product pressing and turning of a partial stack the infed printed products can be delivered to a further one of the stacker devices for product stack formation.

REFERENCES:
patent: 4541763 (1985-09-01), Chandhoke
patent: 4547112 (1985-10-01), Steinhart
patent: 4720229 (1988-01-01), Steinhart

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