Abstract: The device for producing packages of stacked materials consisting of a plurality of individual signatures comprises a first conveying unit, which defines a signature path. The first conveying unit moves the signatures along the signature path into a vertical position. The device also comprises a stacking table with a support surface for supporting the signatures, which are arriving with a vertical orientation. The stacking table comprises a second conveying unit, which moves the stacked signatures in a conveying direction of the stack. A control unit switches a tilting device between an active state, in which the tilting device tilts or compresses an upper area of the stacked signatures, and an inactive state, in which the tilting device exerts no effect on the stacked signatures.

Abstract: The device for producing packages of stacked materials consisting of a plurality of individual signatures comprises a first conveying unit, which defines a signature path. The first conveying unit moves the signatures along the signature path into a vertical position. The device also comprises a stacking table with a support surface for supporting the signatures, which are arriving with a vertical orientation. The stacking table comprises a second conveying unit, which moves the stacked signatures in a conveying direction of the stack. A control unit switches a tilting device between an active state, in which the tilting device tilts or compresses an upper area of the stacked signatures, and an inactive state, in which the tilting device exerts no effect on the stacked signatures.

Abstract: The holding-down arrangement for holding down a sheet (24) in a sheet-bearing region of a sheet-processing machine, in particular of a folding machine, includes a plurality of blowing devices (19, 21) which, during use, are directed toward a sheet (24) and direct an air jet (20, 22) onto the sheet (24). The holding-down arrangement may be fitted in a sheet-aligning device which is arranged downstream of a sheet infeed and includes a sheet-bearing device (12), on which an incoming sheet (24) comes to rest.

Abstract: The folding machine includes at least one pair of knife shafts, the knife shafts (22, 24) of which are, in a working position, mounted parallel to each other between two spaced-apart side walls (18, 20) of the folding machine (10). In order, in parallel with the production process, to be able to prepare knife shafts for a subsequent production process, the knife shafts (22, 24) are mounted in a cassette (28) which can be displaced through a sidewall (20) facing the operator from an inserted position, in which the knife shafts (22, 24) are in their working position, into a pull-out position, in which the knife shafts (22, 24) are outside the folding machine (10).

Abstract: The holding-down arrangement for holding down a sheet (24) in a sheet-bearing region of a sheet-processing machine, in particular of a folding machine, includes a plurality of blowing devices (19, 21) which, during use, are directed toward a sheet (24) and direct an air jet (20, 22) onto the sheet (24). The holding-down arrangement may be fitted in a sheet-aligning device which is arranged downstream of a sheet infeed and includes a sheet-bearing device (12), on which an incoming sheet (24) comes to rest.

Abstract: A folding device includes a folding machine with a folding unit, and a prefolding apparatus for prefolding a sheet before it is feeded into the folding unit of the folding machine. The prefolding apparatus includes a sheet stacking apparatus, on which a sheet stack is stored. A perforating or scoring device perforates or creases a sheet fed from the sheet stacking apparatus along a longitudinal center line thereof. A plow folding unit folds the perforated or creased sheet around the longitudinal center line.

Abstract: The folding machine includes at least one pair of knife shafts, the knife shafts (22, 24) of which are, in a working position, mounted parallel to each other between two spaced-apart side walls (18, 20) of the folding machine (10). In order, in parallel with the production process, to be able to prepare knife shafts for a subsequent production process, the knife shafts (22, 24) are mounted in a cassette (28) which can be displaced through a sidewall (20) facing the operator from an inserted position, in which the knife shafts (22, 24) are in their working position, into a pull-out position, in which the knife shafts (22, 24) are outside the folding machine (10).

Abstract: In the case of the method of, and the folding machine for, folding a plurality of sheets (50) in a buckle folder (12) with at least a first and a second buckle plate (30, 34, 70), in which a respective first sheet stop (32) and a second sheet stop (36, 72) are provided and between which at least one pair (41) of folding rollers, with folding rollers (40, 42) rotating in opposite directions, is arranged, the sheets (50) are transported one after the other into the first buckle plate (30) until they strike against the corresponding sheet stop (32), in which case they are collected in the first buckle plate (30) to form a group (51) of sheets.

Abstract: In the process for folding a sheet into a folded sheet with a minimum of 16 pages (sides), a first folded sheet (12) with four pages is formed by virtue of the sheet (11) being folded around a folding line (21) running transversely to the feeding transporting direction (30). Continuing in the feeding transporting direction, the second and third folded sheets are formed by virtue of being folded around corresponding lines running along the feeding transporting direction. The third folded sheet (14) can then be deflected through 90° and, thereafter, folded, around its center line (22a, 22b) running longitudinally in relation to the continued-transporting direction (31), into a fourth folded sheet with 32 pages. This process makes it possible to achieve very high sheet-processing speeds.