Apparatus and method for cutting or perforating a paper web
AssigneeMuller Martini Holding AG
InventorsRolf MEYERHANS, Roger LÜSCHER, Markus BRACHER
Life of this patent
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Abstract
An apparatus and a method for processing a digitally printed-on paper web, conveyed continuously through the apparatus includes a perforating tool for perforating the paper web transverse to its movement direction, and a cutting tool for cutting print sheets from a downstream end of the paper web. The tools are attached spaced-apart to a tool carrier which can be moved to two operating positions in which respectively one of the tools can be made to engage with a counter tool on a rotating cutting drum.
Claims23
An apparatus for processing a paper web, digitally printed-on and moved continuously through the apparatus in a movement direction, said apparatus comprising:
- a perforating tool for perforating the paper web transverse to the movement direction;
- a cutting tool for cutting off print sheets from a downstream end of the paper web, wherein the perforating tool and the cutting tool are respectively arranged on a first side of the paper web and transverse or nearly transverse to the movement direction of the paper web;
- at least one counter tool arranged on a side that is opposite the first side of the paper web;
- a rotatable cutting drum for holding the at least one counter tool, the drum including a rotational axis which is oriented transverse or nearly transverse to the movement direction of the paper web;
- and
- a joint tool carrier for accommodating the perforating tool and the cutting tool, wherein the perforating tool and the cutting tool are attached spaced-apart on the tool carrier, and wherein the tool carrier is movable between two operating positions in which the perforating tool is made to engage with the at least one counter tool in one of the two operating positions for processing the paper web and the cutting tool is made to engage with the at least one counter tool in the other of the two operating positions for processing the paper web.
A method for processing a digitally printed paper web, comprising:
- transporting the paper web continuously in a movement direction through an apparatus for which a paper web is perforated or cut, respectively, by a perforating tool or a cutting tool, and at least one counter tool;
- rotating the at least one counter tool around a rotational axis that is oriented transverse or nearly transverse to the movement direction of the paper web;
- and
- selectively moving a tool carrier that mounts the perforating tool and the cutting tool between two operating positions for processing the paper web so that the perforating tool cooperates with the at least one counter tool in one of the two operating positions to perforate the paper web transverse to its movement direction and the cutting tool cooperates with the at least one counter tool in the other of the two operating positions to cut print sheets from a downstream end of the paper web.
Dependencies are inferred from the claim text.