Mechanism for the attachment of interchangeable molds in an injection molding machine
US4473346A · kind A · utility
Inventor
Key dates
| Filing date | Dec 13, 1982 |
| Grant date | Sep 25, 1984 |
| Priority date | — |
| Expiry date | Dec 13, 2002 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C33/305
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A mechanism for the clamping attachment of interchangeable injection molding dies to the die carrier plates of an injection molding machine featuring a plurality of clamping plungers in axial guide bores of the die carrier plates, each clamping plunger having a clamping nose engaging a clamping shoulder of an oversized back plate of the die half, clamping the latter against the die carrier plate, when it is forcibly retracted by means of a transversely guided wedge rod traversing the clamping plunger and driven by a hydraulic cylinder assembly in a self-locking taper drive configuration. The injection molding dies are insertable and removable in either a horizontal or a vertical direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.