Injection molding unit for injection molding machines
US5417558A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 23, 1993 |
| Grant date | May 23, 1995 |
| Priority date | — |
| Expiry date | Jun 23, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C45/07
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An injection molding unit for injection molding machines includes a first subassembly having a plasticizing unit including a screw cylinder and a screw, a second subassembly having a metering drive to rotate the screw of the plasticizing unit, a third subassembly having two drives with substantially parallel axes for providing motion of the screw cylinder relative to an injection mold, and a fourth subassembly having two drives with substantially parallel axes for producing actual displacement of the screw in the screw cylinder of the plasticizing unit, with the plasticizing unit being located substantially centrally between the two parallel axes of the third and fourth subassembly drives, and with the two drives of said fourth sub-assembly include two liquid-cooled electric servomotors, respectively, electrically connected to one another to operate synchronously.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.