Control method for injection moulding
US10471639B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 11, 2015 |
| Grant date | Nov 12, 2019 |
| Priority date | — |
| Expiry date | Nov 7, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C2945/76946
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A control method for an injection moulding system having an extruder, feeding material continuously to an accumulator, portioning material intermittently to an injection device, wherein the control method is configured to drive the extruder at a high speed or at a low speed respectively, the high speed and the low speed defining an extruder speed interval, the method comprising acquiring a value for an actual positional change for the accumulator (ΔPOSACT), comparing the value for the actual positional change (ΔPOSACT) with a predicted value for the positional change (ΔPOSPRED), and adjusting a speed of the extruder based on a result of the comparison.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.