Heated nozzle for plastic injection and manufacturing method therefor
US5226596A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 13, 1991 |
| Grant date | Jul 13, 1993 |
| Priority date | — |
| Expiry date | Sep 13, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B3/56
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The heat of a heater sheath wire is both the heat that is directly transmitted to a heated nozzle main body, and the heat that is indirectly transmitted to the heated nozzle main body via a metal strip and both provide the effect of efficiently heating the heated nozzle main body and producing a significant increase in the performance. The heated nozzle for plastic injection molding according to the present invention is configured so as to have a spiral-shaped groove on its outer periphery, the heater sheath wire that is pressed into the spiral-shaped groove and the metal strip that is wound around the surface of the outer periphery of the heated nozzle main body and is welded to the heated nozzle main body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.