Method and apparatus for producing stacks of interleaved materia

Manufacturing container or tube from paper; or other manufacturi – With cutting – breaking – tearing – or abrading – Including assembling or disassembling of distinct members

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Details

493388, 493418, 493430, 493433, 270 39, B31F 100, B65H 4500

Patent

active

051472732

ABSTRACT:
A method and an apparatus produce a stack of overlapping, U-folded- or zig-zag-folded individual material sheets, in particular of absorbent paper, that mesh with one another. The stack is formed by two roller systems or roller sets, one for each of two material webs. Each system includes a stacking roller (8, 9) in a stacking station. The two stacking rollers cooperate in the stack formation. Each set of rollers includes at least one cutting roller (11) with a cutting knife (12) for each material web, a transport roller (13), and a pulling and guide roller (14). All rollers are arranged and driven in a machine frame. Each stacking roller (8,9) has at least one crimping- and folding-edge (16,20,21) and at least one tiltable suction gripper flap. At least one suction element (23) is part of the suction gripper flap and at least one further suction element (24) is arranged behind the suction gripper flap or behind the crimping- and folding-edge as viewed in the sheet travel direction.

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patent: 4917665 (1990-04-01), Couturier

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