Device for filtering a plastic melt

US10350519B2 · kind B2 · utility

Assignee

• MAAG AUTOMATIK GMBH · DE

Inventors

• Harald Pohl · Erbach, DE
• Markus Steinmann · Zürich, CH

Key dates

• Filing date: Jun 29, 2015
• Grant date: Jul 16, 2019
• Expiry date: Sep 15, 2035

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B29K2101/12
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A device for filtering a plastic melt, including a housing and a filter pin which is axially and/or radially movable therein. In a working position of the filter pin, plastic melt passes from an inlet channel, through a filtering mechanism, which is detachably fastened to the filter pin, to an outlet channel. In a filter change position of the filter pin, the filtering mechanism is freely accessible for replacing the filtering mechanism, and wherein at least one drainage channel is formed in the filter pin. In a start-up position of the filter pin, one end of the at least one drainage channel is in fluid connection with the at least one inlet channel in order to receive the plastic melt that is fed through the at least one inlet channel and to output the plastic melt at another end of the at least one drainage channel.