Large nozzle for hot runner mold
US4832593A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 25, 1988 |
| Grant date | May 23, 1989 |
| Priority date | — |
| Expiry date | Jan 25, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C2045/2889
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a system for injection molding large parts. The system includes a large diameter hot runner valve gated nozzle assembly which can be removed for servicing. The assembly includes a heated nozzle body having a substantially C-shaped flow channel for conveying molten plastic to a nozzle having an injection gate and a valve arrangement for opening and closing the injection gate. The assembly further includes a nozzle extension attached to the nozzle body so as to accommodate thermal expansion of the nozzle extension. A manifold for supplying molten plastic material to the nozzle assembly is mounted and retained within a slot in the nozzle extension so as to permit sliding action of the manifold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.