Bw Papersystems Stuttgart Gmbh

Bielomatik Leuze Gmbh + Co. Kg

Andreas Schilling

Hansjörg Klein

Hansjoerg Klein

Markus Kremer

Hansj Rg Klein

The invention relates to a device, in particular a roll cross-cutter, for forming a shingle stream of underlapping or overlapping sheets, in particular of paper or carton sheets, having a transport apparatus for transporting sheets, having a shingling apparatus for underlapping or overlapping sheets in regions, having a deceleration apparatus, downstream of the shingling apparatus in the transport direction of the sheets, for decelerating shingled sheets, in particular by forming a deceleration gap for the passage of shingled, combined sheets, and, preferably, having a cross-cutting apparatus upstream of the shingling apparatus for cutting a material web into individual sheets. According to the invention, the shingling apparatus is designed to be adjustable, in dependence of the cut length, in and/or opposite the transport direction of the sheets.

Device and method for forming a shingle stream of under- or overlapping sheets

The invention relates to an apparatus, in particular a roll cross cutter, for forming a shingled stream of underlapping or overlapping sheets, in particular paper or cardboard sheets, comprising a transport device for transporting sheets, a shingling device for underlapping or overlapping of the sheets at least in some regions, a braking device following the shingling device in the transport direction of the sheets for braking of shingled sheets, in particular by the formation of a brake gap for the passage of sheets brought together in a shingled manner, and a cross-cutting device upstream of the shingling device for cutting a material strip into individual sheets. According to the invention, an intake section is provided between the shingling device and the braking device for intake and further transport of a sheet, trailing in the shingled stream, into the braking device.

Apparatus and method for positionally defined transport of sheets

An apparatus for overlapping sheets and depositing them in a stack has a conveyor for transporting the sheets in a horizontal travel direction along a travel path toward a stacking region at a rapid feed speed. A braking device on the path upstream of the stacking region can grip the trailing edge of a one of the sheets. At least one supporting air bar extends above the path into the stacking region and has nozzles from which compressed air exits in the sheet travel direction. A suction belt above the travel path between the braking device and the stacking region is movable in the travel direction at least at the rapid feed speed and has suction ports that can be switched on and off cyclically.

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Lichtenstein, Germany

Andreas Schilling