Printing machine register adjustment system

US4821640A · kind A · utility

Assignee

• MAN Roland Druckmaschinen AG · DE

Inventors

• Josef Hajek · Friedberg, DE
• Hans Mamberer · Königsbrunn, DE

Key dates

• Filing date: Apr 13, 1988
• Grant date: Apr 18, 1989
• Expiry date: Apr 13, 2008

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B41F13/14
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

To permit both circumferential as well as axial register adjustment of three printing couples (1, 2, 3), in which the respective cylinders of the printing couples are interconnected by spiral gears, two of the blanket cylinders (4, 8) are axially shiftable. The changes in circumferential register, upon changing of lateral register--due to the spiral gears--are compensated by position motor controllers (34, 44) which may include a microprocessor (50), automatically. Lateral register is set in a predetermined sequence by the respective cylinders, in accordance with the coupling of one of the plate cylinders (e.g. 5) with a printing machine main drive pinion (68).