Stroke limiter for valve pin actuating mechanism
US7048532B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 2, 2003 |
| Grant date | May 23, 2006 |
| Priority date | — |
| Expiry date | Aug 25, 2024 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C2045/2834
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A valve pin actuating mechanism for an injection molding apparatus is provided. The injection molding apparatus includes at least one melt channel and a valve pin that is movable in the melt channel. The valve pin actuating mechanism includes an actuator, a linkage element and a stop. The linkage element has a mechanically upstream connector and a mechanically downstream connector. The linkage element is connected at least indirectly to the actuator at the mechanically upstream connector and is connected at least indirectly to the valve pin at the mechanically downstream connector. The linkage element is rotatable by actuation of the actuator. The stop is configured to engage a limit surface to limit the angle of rotation of the linkage element. The stop and the limit surface are configured to engage mechanically upstream from the downstream connector of the linkage element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.