Device and method for adjusting and/or modifying a profile in the supply of dampening medium, extending in the direction of the printing width, and printing unit having a device for adjusting and/or modifying the profile

US9908322B2 · kind B2 · utility

Assignee

• KOENIG & BAUER AG · DE

Inventors

• Patrick Kress · Bad Mergentheim, DE
• Martin Lanig · Hammelburg, DE
• Volkmar Rolf Schwitzky · Coburg, DE

Key dates

• Filing date: Feb 4, 2015
• Grant date: Mar 6, 2018
• Expiry date: Feb 4, 2035

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B41F31/007
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

A device one of adjusts and changes a dampening medium profile, which extends in the direction of a printing width, in a printing unit comprising at least one printing unit cylinder, at least one inking unit which inks the printing unit cylinder, and at least one dampening unit which interacts with one of the printing unit cylinder and the printing unit. A drying device, which extends over the printing width, is provided with a number I(Iε, 0>1) of drying elements, the influence of which, on a printing unit surface to be treated, allows moisture to be removed from a number of n(nε, n>1) axial portions aj(j=1, . . . , n) that are offset relative to one another in the direction of the printing width. One of an extent of the influence of the drying device with respect to the axial direction (aj) and the operating state of the drying device can be varied independently of one another. The drying elements are designed and arranged in the printing unit such that at least 20% of the width (bj), when seen in the direction of the printing width, of multiple or all of the axial portions (aj), which are designed as active portions (aj) with an active width (bj) of the drying elements in the pr…