Abstract: A foil cutter for use on the surface area of a carrier roller of a rotary punch has a base plate with a bottom and a top, and at least one blade arranged on the top of the base plate. The top of the base plate has at least one region bordering on the at least one blade and partially or completely surrounded by the at least one blade, in which at least one foil cutter perforation is present through which at least a part of punched flat material can be drawn by suction to be held in the region and be further transported by the carrier roller. The foil cutter has at least one elevation arranged on the top of the base plate in the at least one region bordering on the at least one blade and partially or completely surrounded by the at least one blades.

Abstract: A bearing structure has a frame, a vacuum roller mounted on the frame, operable to be axially subjected to suction air from both sides, a first bearing arranged in a first bearing housing and a second bearing arranged in a second bearing housing, and a first bearing journal disposed on a first end of the roller, and a second bearing journal disposed on a second end of the roller. The roller is mounted in the first bearing so that there is a substantially constant clearance between a first front face of the roller. The roller is mounted in the second bearing so that there is a substantially constant separation between a second front face of the roller. The second bearing housing is arranged such that the second bearing housing is axially displaceable relative to the frame.

Abstract: A foil knife for utilization on a surface area of a suction roller includes at least one blade and a base plate with a surface that features in a snips area, which faces a snip detached during a cutting process from a useful part of a sheet material, at least one suction air through-passage for holding the snip by means of a suction effect through a predetermined angle range of a rotation of a suction roller on the same. The foil knife features around the suction air through-passage at least one plateau area in which the foil knife is elevated, at least section wise, relative to the thickness of the base plate by a height, as measured from the surface of the base plate, wherein this height is smaller than the height, measured from the surface of the base plate, of the blade of the foil knife.

Abstract: A suction roller system includes a suction roller and a control head having a ventilation zone situated at a face side of the suction roller. The suction roller system allows rapid ventilation of the suction bores situated on the face side opposite the control head via a cost-advantageous and space-saving expansion. For this purpose, the suction roller is equipped, on the second face side, with a closure plate having an opening that corresponds to the ventilation zone.

Abstract: A suction roller system includes a suction roller and a control head having a ventilation zone situated at a face side of the suction roller. The suction roller system allows rapid ventilation of the suction bores situated on the face side opposite the control head via a cost-advantageous and space-saving expansion. For this purpose, the suction roller is equipped, on the second face side, with a closure plate having an opening that corresponds to the ventilation zone.

Abstract: A device for cutting and/or embossing a sheet, a pre-cut blank, or a material web has a cutting and/or embossing roller having a longitudinal axis, which is mounted, at its two ends, in at least one bearing so as to rotate, a counter-roller that works together with the embossing roller and is mounted so as to rotate, and a force application device for applying a pressure force to a circumference surface of the cutting and/or embossing roller. This device makes it possible to set a uniform gap width of the gap between the cutting and/or embossing roller and the counter-roller, over its axial width. The pressure force applied to the circumference surface is diverted by the force application device into the at least one bearing by way of at least one part of the cutting and/or embossing roller, so that the pressure force is not applied to the counter-roller.

Abstract: A device for the cutting out of flat material blanks from flat material sheets is described, which has a cutting roller and a counter roller working together with it, that form a roller gap into which the flat material sheets can be inserted for the cutting out of flat material blanks, whereby a residual material is produced. This device should be further configured in such a way that on the one hand it is connected with the least possible device expenditure, and on the other hand is not limited in its application to flat material sheets with a specified minimum length.

Abstract: A device for adjusting a gap seal between two components that move relative to one another, as well as a method in this regard. The device brings two parallel sealing surfaces onto one another without a gap, before the first-time movement, and adjusts the gap to the smallest possible dimension in the start-up phase of the movement, by means of targeted wear of one sealing surface itself.

Abstract: The invention relates to a method and an apparatus for setting up at least one holding arrangement for a workpiece in relation to format and/or for setting a tool on a tool carrier, selectable positions being provided in particular for the holding arrangement, and an adjustable control element being provided as part of an adjusting and catch arrangement with positions related to the format, by means of which the holding arrangement is adjusted and fixed relative to the tool carrier. The essence of the invention consists in the fact that at least the fixing of the adjusting and/or catch arrangement for the holding arrangement relative to the tool carrier in at least one setting position is effected magnetically.

Abstract: The invention relates to a method and an apparatus for setting up at least one holding arrangement for a workpiece in relation to format and/or for setting a tool on a tool carrier, selectable positions being provided in particular for the holding arrangement, and an adjustable control element being provided as part of an adjusting and catch arrangement with positions related to the format, by means of which the holding arrangement is adjusted and fixed relative to the tool carrier.

Abstract: A rotatable knife roll with at least one foil knife secured on a portion of the body of the roll and having a sharp and endless cutting edge closed within itself to cut out window openings. There are breakthroughs for suction apertures arranged within the cutting edge. There is at least one suction-air control valve arranged on the face side of the roll body. The valve is rotatable relative to this portion of the roll. The suction-air control valve has at least one suction-air-control channel and at least one fresh-air channel. There are suction apertures for temporarily retaining a letter envelope blank over a suction and transport angle zone &agr;, and for retaining a piece of material cut out by the foil knife across a suction and transport angle zone &bgr;. The suction apertures are arranged in rows to which suction channels are allocated in the part of the roll body.