Extruder head

US5061166A · kind A · utility

Assignee

• Paul Troester Maschinenfabrik · DE

Inventors

• Hans-Joachim Gohlisch · Hannover, DE
• Wilfried Baumgarten · Pattensen, DE
• Klaus Becker · Hanau, DE
• Paul Budiman · Hannover, DE

Key dates

• Filing date: Jul 12, 1990
• Grant date: Oct 29, 1991
• Expiry date: Jul 12, 2010

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B29K2021/00
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

An extruder head for producing profiles of rubber and/or plastic mixtures has a stationay main part which has a forward face in which the discharge ends of at least two extruders, rigid with the stationary main part open. The stationary main part has a transverse pivot shaft at one side of the forward face and, at the side opposite the pivot shaft, an abutment which projects forwardly of the forward face. A movable main part is pivoted, with play, on the pivot shaft and is swingable between a closed position in which it overlies the forward face and an open position. An extrusion die unit is disposed between the outboard end of the movable main part and the abutment. Flow channels between the movable main part and the stationary main part lead from the extruders to the extrusion die unit. Hydraulically operated clamps hold the movable main part in closed position and a hydraulic servo motor exerts on the movable main part a force parallel to the forward face of the stationary main part and directed toward the abutment. In one embodiment, there are two movable main parts pivoted at opposite sides of the stationary main part and having an extrusion die unit between them.