Process for regulating the tool inner pressure curve of a cyclically working machine

US5945046A · kind A · utility

Assignee

• Arburg GmbH + Co. · DE

Inventors

• Karl Hehl · Usedom, DE
• Oliver Kay Wybitul · Baesweiler, DE
• Michael Manfred Gierth · Aachen, DE
• Joachim Huth · Solingen, DE

Key dates

• Filing date: Jun 11, 1998
• Grant date: Aug 31, 1999
• Expiry date: Jun 11, 2018

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B29C45/77
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

For a cycle of a cyclically operating machine, the internal tool pressure is detected during the cycle as a function of the time and/or as a function of the path traversed by the conveying means. The internal tool pressure course is then differentiated as a function of the time or of the path. It is then checked whether, by way of the previously determined derivatives, there are deviations from a monotonic course. If this is the case, the holding pressure time or the change-over moment are changed until the internal tool pressure curve has a monotonic course.