Printing roll changer system, and method of roll changing

US5152472A · kind A · utility

Assignee

• MAN Roland Druckmaschinen AG · DE

Inventors

• Otto Spang · Margertshausen, DE
• Hans Mamberer · Königsbrunn, DE

Key dates

• Filing date: Jan 2, 1991
• Grant date: Oct 6, 1992
• Expiry date: Jan 2, 2011

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B65H19/1815
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

To permit essentially automatic control of roll changing to change between an old roll and a replacement roll of printing machine paper, adhesive is applied to the old roll, at predetermined locations, as the old roll runs off, and the now sticky surface is engaged against the beginning portion from the new roll, the old roll then being severed within the range of the still sticky portion to ensure complete adhesion of substrate from the old roll on the substrate of the new roll. Excess adhesive which is not covered by substrate from a new roll is deactivated by a deactivating element (7) positioned in advance of any deflection roller to prevent accumulation of adhesive on any elements of the roll changer of the printing machine.