Rotary platen assembly
US6402504B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 7, 2000 |
| Grant date | Jun 11, 2002 |
| Priority date | — |
| Expiry date | Jun 7, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C2043/3692
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A rotatable platen assembly is adapted to support a mold used in multi-shot plastic injection molding. The platen assembly includes a non-rotatable machine platen having a central bore formed therethrough. A non-rotatable base plate is connected to the machine platen, the base plate having a central opening aligned with the central bore of the machine platen. A rotating plate is adapted to retain a mold thereon. The rotating plate is provided with a rotatable center axle passing through the central opening in the central bore, and a gear mounted for rotation on the axle. A rack system is engageable with the gear for moving the mold rotating plate between a starting position and a finishing position. A shock absorber arrangement is mounted externally of the base plate for dampening the momentum of the rotating plate between the starting position and the finishing position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.