Folding apparatus for reel or web-fed rotary printing machines

US4344610A · kind A · utility

Assignee

• Heidelberger Druckmaschinen AG · DE

Inventors

• Willi Jeschke · Bad Herrenalb, DE
• Hans Muller · Sandhausen, DE

Key dates

• Filing date: Jul 6, 1980
• Grant date: Aug 17, 1982
• Expiry date: Jul 6, 2000

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T83/4838
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

Folding machine in web-fed rotary printing machines for longitudinally folding, for cross-cutting the paper web and for collecting separated copies on a collecting cylinder cooperating with a knife cylinder, the collecting cylinder having an odd number of puncture rows on the periphery thereof, and the knife cylinder having an even number of puncture rows on the periphery thereof for the longitudinally folded paper web, the improvement therein including means defining the puncture rows firmly built into the collecting cylinder, cutting devices formed alternatingly of a single knife and a double knife respectively located on the knife cylinder following successive section length thereon, said single knife being disposed at a location whereat it leads the respective puncture row cooperating therewith and a device for removing from the puncture rows trimmed strips separated from the copies by the double knife on both sides.