Device for stacks of sheets in a stacking station and for conveying a stack of the stacking station into an unloading station

摘要

In the stacking device, two support pairs (20, 21) are movable periodically one after the other along an endless path. The path forms a horizontal conveying track (3) with a stacking station (1) and an unloading station (2). At the stacking station (1) vertical conveyor belts (4, 5) act from above towards the start of the conveying track (3) in order to push up the printed sheets, which are fed in the form of an overlapping stream between the supports of a support pair (20, 21) to form a stack (S). In order to increase the operating rate, it is provided for the two support pairs (20, 21) to be individually driveable in such a manner that, alternately during successive movement semi-periods, in each case one support pair (21) passes through the stacking station (1) and the other support pair (20) is moved from the stacking station (1) to the unloading station (2), stopped there and, after unloading, moved further via a waiting position to the loading station (1) again. IMAGE