Twin-shaft screw-type extruding machine having mixing elements with wings

US5593227A · kind A · utility

Assignee

• Werner & Pfleiderer GmbH · DE

Inventors

• Bernhard Scheuring · Stuttgart, DE
• Edgar Schlipf · Stuttgart, DE

Key dates

• Filing date: Jul 25, 1995
• Grant date: Jan 14, 1997
• Expiry date: Jul 25, 2015

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B29C48/03
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

A twin-shaft screw-type extruding machine comprises a casing, shafts driven to rotate in the same direction of rotation and mixing elements facing each other and associated in pairs, which are disposed non-rotatably on the shafts. Each mixing element is a disk connected with a shaft. Mixing wings are provided at equal angular distances on the fronts, facing each other, of the disk and in the vicinity of the latter's respective circumference. A mixing wing of a mixing element and a mixing wing of the associated mixing element interengage and rotate past each other, while leaving a gap.