Folding apparatus for a web-fed rotary printing machine

US4564183A · kind A · utility

Assignee

• Heidelberger Druckmaschinen AG · DE

Inventor

• Hans Muller · Sandhausen, DE

Key dates

• Filing date: Feb 7, 1985
• Grant date: Jan 14, 1986
• Expiry date: Feb 7, 2005

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B65H45/168
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

A folding apparatus for a web-fed rotary printing machine having a train of successive cylinders including a slot-type collecting cylinder, a blade cylinder with two cutting blades disposed on the periphery thereof for cutting full format lengths off a web and with cam-controlled folding blades offset 90.degree. from the cutting blades, a folding-jaw cylinder with two controlled folding jaws disposed at the periphery thereof and a cam-controlled folding blade offset by 45.degree. downstream from the folding jaws, and a second cross-folding cylinder having two gripper rows cooperating with the folding jaws of the folding-jaw cylinder and having two controlled folding jaws offset downstream from the gripper rows and cooperating with the folding blades of the folding jaw cylinder includes three needle rows for collecting being disposed with equal mutual spacing around the periphery of the slot-type collecting cylinder, the periphery of the collecting cylinder being able to accept three half format lengths of the web; two additional removable cutting blades located on the blade cylinder at an offset of 90.degree. from the cutting blades already fixed thereon and being disposed together…