Washing device for impression cylinders

US4747348A · kind A · utility

Assignee

• Heidelberger Druckmaschinen AG · DE

Inventors

• Willi Jeschke · Bad Herrenalb, DE
• Klaus Durrnagel · Taunusstein, DE

Key dates

• Filing date: Apr 29, 1987
• Grant date: May 31, 1988
• Expiry date: Apr 29, 2007

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B41P2235/26
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

In a washing device for an impression cylinder of a printing machine, there is provided a washing roller capable of being brought into contact with and liftable away from a cylindrical jacket surface of the impression cylinder in vicinity of a gripper bridge of the impression cylinder, and being sprayable with cleaning solution, the washing roller comprising a washing brush extending over substantially the entire length of the impression cylinder and being separately driven, the washing roller being rotatable in a direction opposite the direction of rotation of the impression cylinder and being rotatable at a higher speed than the rotating speed of the impression cylinder, the washing roller being movable automatically into its contact with the impression cylinder.