Stack changing device

US6286826A · kind A · utility

Assignee

• MAN Roland Druckmaschinen AG · DE

Inventors

• Peter Hummel · Offenbach, DE
• Robert Ortner · Alzenau, DE
• Jens Gebel · Seligenstadt, DE
• Marc Hinz · Rodenbach, DE
• Bernd Ullrich · Niederrodenbach, DE
• Uwe Basel · Offenbach, DE
• Harald Wolski · Rodgau, DE

Key dates

• Filing date: Aug 4, 1999
• Grant date: Sep 11, 2001
• Expiry date: Aug 4, 2019

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B65H2801/21
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

In a non-stop stack changing device, remaining-stack bars are pulled from the stack area one by one and out-of-line in relation to each other. To this end, a pull/push drive is provided, which makes it possible to push the remaining-stack bars simultaneously into the grooves of a pallet carrying a sheet stack. Furthermore, the pull/push drive makes it possible to pull the remaining-stack bars in pairs from inside outwards out of the stack area. In addition, the remaining-stack bars can be pulled in a first and second sequence in accordance with this model. An individual motor drive is provided for this purpose, which operates interlockingly on each individual remaining-stack bar.