Method of controlling a screw in a two-stage injection unit and a system for implementing the method
US7643900B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 13, 2007 |
| Grant date | Jan 5, 2010 |
| Priority date | — |
| Expiry date | Mar 10, 2028 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C2945/76936
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Embodiments of the present invention teach a method of controlling a screw in a two-stage injection unit and a system for implementing the method. For example, a method of controlling a screw in a two-stage injection unit, the method executable at a computing apparatus associated with the two-stage injection unit is disclosed. The method comprises receiving an indication of an operational parameter associated with the screw of the two-stage injection unit; based on the indication of the operational parameter, determining a target speed (STARGET) for the screw, the target speed (STARGET) being sufficient to enable the screw to produce a required amount of material in a molten state; causing the screw to rotate at the target speed (STARGET), thereby causing the screw to operate in a substantially continuous manner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.