Method for monitoring a production process, method for indirectly deducing a systematic dependency, method for adapting quality, method for starting a production process, method for producing an extrusion product and system for producing an extrusion product

US12377597B2 · kind B2 · utility

Assignee

• REIFENHÄUSER GMBH & CO. KG MASCHINENFABRIK · DE

Inventors

• Christoph Lettowsky · Aachen, DE
• Thomas Fett · Troisdorf, DE
• Mark Hilgers · Troisdorf, DE
• Jens Mager · Cologne, DE
• Andreas B. Rösner · Bonn, DE
• Christian Stelter · Ingelheim am Rhein, DE
• Asmir Vodencarevic · Erlangen, DE
• Paul Walach · Troisdorf, DE
• Hans-Georg Geus · Niederkassel, DE
• Michael Nitschke · Rübhausen, DE
• Martin Neuenhofer · Rösrath, DE

Key dates

• Filing date: Oct 18, 2017
• Grant date: Aug 5, 2025
• Expiry date: Mar 9, 2039

Classification

• Technology area (CPC G): Physics
• CPC primary: G05B2219/32179
• WIPO field: Control
• WIPO sector: Instruments

Abstract

The invention relates to various aspects in the production of extrusion products. The properties of extruded articles are dependent significantly, in addition to their formulation, also on the setting variables and in particular on the thus resulting process variables. The setting variables and in particular the process variables thus represent a state of the extrusion process characterized as “fingerprint”. The thus claimed invention takes into account these facts and supports the operator of a production plant to detect earlier changes in quality and to systematically counteract a deterioration in the quality.