Apparatus and method for removing a molded article from a mold, and a molded article
US7510677B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 20, 2006 |
| Grant date | Mar 31, 2009 |
| Priority date | — |
| Expiry date | May 12, 2027 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29K2105/253
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Injection molding method and apparatus for ejecting a molded plastic article from a mold. A lifting structure and/or step is provided with a lifting portion which is configured to contact substantially one half of an end of the molded plastic article along a line substantially perpendicular to the lifting direction. Since the molded plastic article is lifted by its end, the article does not have to be solidified at its interior, thus allowing earlier removal of the article from the mold, reducing cycle time. A tapered surface forms an acute angle with respect to the lifting portion to form a tight seal with the mold, preventing leakage. Preferably, the neck ring engages only an outer circumferential portion of the molded plastic article during a majority of a mold opening stroke.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.