Jagenberg Querschneider Gmbh

Voith Patent Gmbh

Saurer Spinning Solutions Gmbh & Co. Kg

Albert Stitz

Guido Spix

Karl Thievessen

Frank Matthias Schmid

Wolfgang Lange

Process and apparatus for damping vibrations in a machine for winding material webs, in which the apparatus includes at least two cylindrical bodies. The process includes positioning the at least two cylindrical bodies to roll on each other to form a nip, such that at least one of imbalance and out-of-roundness of either of the at least two cylindrical bodies form a system capable of vibration. The process further includes actively damping vibrational forces of the vibration system in at least one of the at least two cylindrical bodies by displacing an axis of rotation of the at least one of the at least two cylindrical bodies in accordance with a current one of a plurality of vibrational force measurements made per each rotation of the at least one of at least two cylindrical bodies and with additional energy fed from outside of the vibration system.

Process and device for active vibration damping for winding machines

A machine for cross cutting a material web has a main frame part unitarily formed with a pair of transversely spaced main sides and with at least one main traverse extending transversely between the main sides and a secondary frame part unitarily formed with a pair of transversely spaced secondary sides and with at least one secondary traverse extending transversely between the secondary sides. The main frame part is formed at its sides with a seat on which the respective sides of the secondary frame part fit complementarily with the main and secondary traverses extending parallel to each other. Two blade drums rotatable about respective transversely extending drum axes have ends journaled in the sides at the seat. Fasteners secure the frame parts together at the seat to opposite sides of the drum ends.

Machine for cross cutting a material web

A device for cross cutting a cardboard web in which, both the blade drums, a sheet transport conveyor accelerates the sheets and then the sheets are positioned to shingle the sheets on a further conveyor. The sheet transport conveyor has a rerouting roller at the outlet side of its upper pass and then extends downwardly into a sheet discharge gate through which defective sheets are effected.

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Kürten, Germany

Albert Stitz