Sheet-fed printing machine with means for cutting sheets longitudinally

US4583459A · kind A · utility

Assignee

• MAN Roland Druckmaschinen AG · DE

Inventors

• Paul Abendroth · Offenbach am Main, DE
• Dietrich Dettinger · Heusenstamm, DE
• Roland Holl · Weiterstadt, DE
• Wolfgang Schales · Mühlheim am Main, DE

Key dates

• Filing date: May 18, 1984
• Grant date: Apr 22, 1986
• Expiry date: May 18, 2004

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B41F13/58
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

A cutting assembly for a sheet fed printing machine having a feed drum for supporting individual sheets and feeding them one after another to the impression cylinder for printing by the blanket cylinder, including a knife blade having a cutting edge, a knife blade support, an arm for mounting the support adjacent the feed drum, the arm being pivoted about an axis parallel to the axis of the feed drum for limited rocking movement toward and away from the feed drum, a stop and a clamp for establishing a reference cutting position for the arm, the feed drum having an anvil extending around its periphery cooperating with the edge of the knife blade for cutting of the sheet as the feed drum rotates, way surfaces between the knife blade support and the arm for guiding the knife blade support for movement in the plane perpendicular to the feed drum and along a path of adjustment which bears a shallow angle to a line of tangency to the feed drum, and a manually operated adjusting screw effectively interposed between the arm and the knife blade support for adjusting the knife blade support along its path of adjustment thereby to vary the degree of engagement of the knife blade with respect …