Injection molding apparatus having a magnetic valve pin coupling
US8308476B2 · kind B2 · utility
6Cited by
25References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 1, 2011 |
| Grant date | Nov 13, 2012 |
| Priority date | — |
| Expiry date | May 15, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C2045/2813
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An injection molding apparatus is disclosed having an actuated part that is movable in forward and rearward directions with a magnetic valve pin coupling attached thereto. A valve pin for opening and closing a mold gate is coupled to the magnetic valve pin coupling to be movable with the actuated part. When the actuated part is moved in an opening stroke direction and the valve pin experiences a stopping force, the magnetic valve pin coupling permits the valve pin to become decoupled from the actuated part to prevent continued movement of the valve pin with the actuated part.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.