Injection molding machine having a tie bar engagement apparatus and method of operating same
US8974716B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 2, 2013 |
| Grant date | Mar 10, 2015 |
| Priority date | — |
| Expiry date | Jul 21, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C45/6728
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An injection molding machine includes a base and an injection unit mounted to the base, and a first platen for holding a first mold section and a second platen for holding a second mold section. The first and second platens are supported by the base, and are movable along a machine axis between mold-open and mold-closed positions. At least a first tie bar engagement apparatus is associated with a first tie bar and includes a first bore in the first platen for receiving the respective tie bar therethrough at least when the platens are in the mold-closed position; and a first roller mounted to the first platen proximate the first bore. The first roller is rotatable about a first roller axis that is oriented horizontally and perpendicular to the machine axis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.