Abstract: A stack squaring device, particularly for squaring a stack consisting of a plurality of thin sheets, includes a horizontal conveyor to transport the stack in a direction of conveyance from a reception area, via a squaring area into a discharge area. A stack stop extends in a direction perpendicular to the direction of conveyance of the stack, is disposed in the discharge area and is movable in the stack conveyance area. Two contact plates are disposed at the sides of the stack and at least one contact plate constitutes a vibrator plate which is connected to a vibrator drive unit. A bearing plate is provided beneath the stack. A pressing plate is lowered vertically onto the stack, whereby the pressing plate and the bearing plate are guided relative to one another in the direction of a common axis, preferably in the direction of a vertical axis. The dimensions of the pressing plate and the bearing plate are smaller than the cover surface of the stack.

Abstract: A palletizing system for moving stackable objects, particularly printed products arranged in stacks, includes a gripping device with gripping tines. The gripping device is arranged at an arm which is driven so as to be rotatable about a vertical axis. An intermediate member serves as the support for a plurality of stacks to be deposited in one plane. The intermediate member has raised portions between which passages are provided that are accessible from at least one edge and that have a width corresponding at least to the width of the tines and a height corresponding at least to the height of the tines. The distance between the passages is related to the distance between the tines and the passages are open toward the top.

Abstract: A palletizing robot for displacing stackable objects, particularly for printed products arranged in stacks, including a gripping device arranged at an arm driven to rotate about a vertical axis, a horizontally oriented transverse member including a track along which the rotatably mounted arm is guided so as to be displaceable in the direction of the transverse member and a bearing rotatable about a vertical axis for the gripping device. The part of the arm extending in the horizontal direction is here disposed below the transverse member and the gripping device is furthermore arranged so as to be vertically displaceable by a predetermined lifting movement, particularly a lifting movement of a few centimeters, in the horizontally extending arm.

Abstract: A gripping device for transporting a stack of flexible sheets includes two substantially horizontally spaced, parallel tines arranged for supporting the stack; and a counterelement supported above the tines in alignment with the spacing therebetween. The counterelement has a horizontal dimension in a direction parallel to the spacing between the two tines. A horizontal dimension is smaller than the spacing between the two tines. A device moves the counterelement substantially vertically towards or away from the tines. When an unstabilized stack of flexible sheets is received on the two tines and the counterelement is moved towards the two tines for gripping and stabilizing the stack therebetween, the counterelement and the two tines produce a curvilinear bending in the stack about a horizontal axis oriented parallel to the two tines when the counterelement is moved past an initial plane containing a top layer of the unstabilized stack.