Apparatus for treating blanks of plastic material

US4773843A · kind A · utility

Assignee

• Krupp Corpoplast Maschinenbau GmbH · DE

Inventors

• Peter Albrecht · Hamburg, DE
• Adolf Appel
• Wolfgang Reymann · Hamburg, DE
• Klaus Vogel · Gondelsheim, DE
• Hermann Werner · Hamburg, DE
• Walter Wiedenfeld · Hamburg, DE

Key dates

• Filing date: Dec 2, 1987
• Grant date: Sep 27, 1988
• Expiry date: Dec 2, 2007

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S425/201
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

An apparatus for treating blanks of plastic material comprising a substantially cylindrical main frame structure, a central, coaxial cam drum which is mounted within same rotatably about its longitudinal axis and which is provided on its outside with working cams, and a plurality of treatment stations arranged in juxtaposed relationship around the periphery of the frame structure, with tools for processing the plastic blanks. The tools in a respective station are carried by vertically movable carriages, each of which is adapted to be moved up and down in the station by a cam follower guided by an associated cam on the cam drum. Each cam follower is carried by a drive carriage. The respectively associated tool carriages and drive carriages are each independently guided on the housing by vertical guide means and are interconnected by way of non-rigid connecting means. The guide means for the carriages are arranged in projection on to a plane perpendicularly to the direction of movement of the respective carriage, between the cam follower and the point at which a reaction force resulting from treatment of a said blank acts on the tool carriage.