Plasticizing unit with an electromotive spindle drive for an injection molding machine
US7112056B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 20, 2003 |
| Grant date | Sep 26, 2006 |
| Priority date | — |
| Expiry date | Oct 20, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C2045/1798
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An actuating drive for a plasticizing unit of an injection molding machine is disclosed. The actuating drive includes a spindle drive with an electric motor and a control mechanism. An energy storage device is coupled with the spindle drive for force transmission therebetween. The energy storage device is loaded by the spindle drive in a return stroke phase and is unloaded in a forward feed phase, boosting the power of an electric motor. The actuator drive can be used, for example, for pulsating actuation of a mold ejector of the injection molding machine, significantly reducing the electrical energy consumption compared to conventional drives.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.