Short shuttle molding system for multi-material molding
US7144537B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 25, 2003 |
| Grant date | Dec 5, 2006 |
| Priority date | — |
| Expiry date | Jan 24, 2024 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C45/162
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An apparatus and method for molding multi-material parts. The mold has a plurality of first mold cavities interspersed alternately among a plurality of second mold cavities. A first molten material is injected into the first mold cavities and solidified. Cores with the first material are moved only one mold pitch to the second mold cavities where a second molten material is injected and solidified with the first material to form the multi-material parts which are ejected from the mold when it is opened. In one embodiment, cavities and cores are arranged in a column, and dummy cores on each end of a column of cores close off the injection nozzle in an end cavity from which a core has been removed for a molding cycle. In another embodiment, cavities and cores are arranged radially, and cores are rotationally moved one mold pitch with each molding cycle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.