System and method to account for thermal die expansion
US8580168B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 16, 2010 |
| Grant date | Nov 12, 2013 |
| Priority date | — |
| Expiry date | May 31, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22D17/32
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A system and method for effecting die height adjustments of a casting machine, such as to account for thermal die expansion. The system and method finds use on a die casting machine having a driven gear train for causing linear movement of a movable platen thereof. Based on known characteristics of the gears of the gear train and of threaded tie bar nuts upon which the gear train operates, a given rotation of a gear train gear can be converted into a linear movement of the movable platen. A sensor is used to count the teeth of a rotating gear train gear and a controller is provided to correlate the tooth count with a corresponding linear travel distance of the movable platen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.