Apparatus and method for heating a side gate nozzle
US11254039B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 9, 2017 |
| Grant date | Feb 22, 2022 |
| Priority date | — |
| Expiry date | Sep 30, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C2945/76755
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An injection molding machine includes an edge gate nozzle with a nozzle body having a primary melt channel and a nozzle head having first and second secondary melt channels that feed melt to first and second nozzle tips. First and second heaters are disposed in the nozzle head to provide heat to the secondary melt channels. In some embodiments, the heaters are positioned adjacent to the secondary melt channels, with first heater is closer to the first secondary melt channel than to the second secondary melt channel. In some embodiments, the heaters are positioned adjacent to the nozzle tips, with the first heater closer to the first nozzle tip than to the second nozzle tip. In some embodiments, each heater is adjacent to both the respective nozzle tip and secondary melt channel. In some embodiments, each heater is individually controllable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.