Folding apparatus for sheet layers

US5820540A · kind A · utility

Assignee

• BIELOMATIC LEUZE GMBH + CO KG · DE

Inventors

• Martin Bohn · Reutlingen, DE
• Wolfgang Scheller · Oberpleichfeld, DE

Key dates

• Filing date: Mar 23, 1995
• Grant date: Oct 13, 1998
• Expiry date: Mar 23, 2015

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B65H45/12
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

Folding stations are provided successively in a single running direction of an apparatus for the single or z-like folding of lateral tongues of a sheet layer. The first station has an offset rising folding curve for tongue straightening, the second station has a rotating roll for z-shaped prefolding of a tongue, and the third station has juxtaposed folding curves for the finish folding of differently long tongues and the first pressing rolls for the smoothing of the fold breaks. Therefore, very different and complicated folds can be carefully made in a single pass through the apparatus.