Actuator for an injection molding valve gate
US6086357A · kind A · utility
27Cited by
7References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 21, 1998 |
| Grant date | Jul 11, 2000 |
| Priority date | — |
| Expiry date | Dec 21, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C2045/2831
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A valve for controlling the flow of fluent plastic material from an injection molding machine to a mold cavity. The valve includes an axially slidable valve pin that interacts with a material outlet to control flow through the valve selectively. The valve pin is actuated by an eccentric cam arrangement that positively drives the valve pin between positions where it is engaged with or disengaged from the material outlet. The cam acts on the valve pin only in an axial direction to avoid wear occasioned by side loads imposed on a valve pin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.