Preparatory station for facilitating the interchange of pre-forming bar assemblies in an extrusion head

US4832590A · kind A · utility

Assignee

• Hermann Berstorff Maschinenbau GmbH · DE

Inventor

• Klaus Bellmer · Ronnenberg, DE

Key dates

• Filing date: Mar 17, 1988
• Grant date: May 23, 1989
• Expiry date: Mar 17, 2008

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B29L2030/002
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

A preparatory station for pre-forming bar assemblies intended for use in conjunction with multiple extrusion head for producing rubber profiles for tread strips of automobile tires includes a plurality of chambers receiving said bar assemblies from said extruder head and for accommodating replacement assemblies, means being provided for heating the accommodation chambers, and further including arrangements for ejecting the pre-forming bar assemblies from the extrusion head and for removing the splicing or jointing bar assemblies and the profile bar assemblies from the pre-forming bar assemblies.