Patent · US Active

Method for starting up a processing plant for producing plastics material granulate and processing plant for producing plastics material granulate

US9393717B2 · kind B2 · utility

0Cited by

5References

2Claims

0Family size

Assignee

COPERION GMBH · DE

Inventors

Michael AHLGRIMM · Besigheim, DE
Hans-Joachim Sämann · Bietigheim-Bissingen, DE
Klaus Kapfer · Leonberg, DE
Peter Munkes · Stuttgart, DE

Key dates

Filing date	Apr 29, 2013
Grant date	Jul 19, 2016
Priority date	—
Expiry date	Aug 9, 2034

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB29C2948/9298
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

In a processing plant for producing plastics material granulate, the start-up takes place in such a way that a screw machine is firstly driven by means of a drive device and then plastics material to be processed is fed by means of a metering device into the screw machine. At least one conveying position of the plastics material in the screw machine is determined by means of a control device by evaluating at least one measuring signal. Depending on the conveying position determined, a granulating device is activated and put into operation. The method according to the invention allows a direct start-up of the processing plant without the use of a start-up valve. This ensures an easy and safe start-up of the processing plant.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.