Injection molding controller with machine modeling
US6108587A · kind A · utility
22Cited by
4References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 11, 1997 |
| Grant date | Aug 22, 2000 |
| Priority date | — |
| Expiry date | Dec 11, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/45244
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An industrial controller for injection molding machines models the injection molding machine by observing ram state in response to control variables to alert the user when a control profile may be physically unrealizable and to inhibit a learning process to avoid extreme actuation of the controlled components such as may be detrimental to later control accuracy. Simultaneous velocity and pressure control of the ram, with separate profiles, may be obtained by open-loop control of either pressure or velocity and continuous closed-loop control of the other control variable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.