Device for gathering sheets

Abstract

The invention pertains to a device for gathering sheets (3) with feeder stations (15) that are arranged in a row and consist of a magazine (20) for respectively accommodating a stack (4) of identical sheets, a separating device (50) that tilts an exposed edge region (3b) of the respective bottom sheet away from the stack (4) and a transport device (30) that withdraws the sheet from the stack parallel to the longitudinal direction of the edge region, and with a collecting conveyor (10) that features pushers (13) for the gathered stacks (2). In order to achieve a high processing speed, the invention proposes that the separating device (50) features at least one suction element (51) for tilting away at least one corner of the sheet (3), and that the transport device for withdrawing the sheet (3) is formed by a traction means conveyor (30) with individually actuated grippers (32) that are anchored on revolving traction means (31) within certain distances from one another and at least two of which take hold of the exposed edge region (3b), wherein the traction means conveyor (30) is inclined toward the collecting conveyor (10) in order to deposit the withdrawn sheet (3) on the stack (2) being formed directly in front of the pusher (13) of the collecting conveyor (10). The invention makes it possible to reliably decollate head-folded signatures if the suction element (51) is arranged on the upstream corner of the stack (4).

Dependencies are inferred from the claim text.