Closing unit for form tools of an injection molding machine
US5585126A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 7, 1995 |
| Grant date | Dec 17, 1996 |
| Priority date | — |
| Expiry date | Apr 7, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C2045/7271
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A closing unit 1 for mold tools 6 of injection molding machines is provided with a stationary mold support- or base-plate 2, a mold support plate 3 whose spacing can be adjusted relative to the stationary mold support plate by displacement thereof, as well as a drive support plate 4, which is connected to the stationary mold support- or base plate 2 by traction links 5, for instance struts. The traction links 5 can be used at the same time as slide guides for the mobile mold support plate 3 and an electromotor 8 serves as an actuation device for the mobile mold mounting plate 3, which electromotor 18 repositions one or several toggle levers 6 and 7 alternately between a kinked position and a stretched position. The toggle lever system or systems are installed between the drive support plate 4 and the mobile mold molding plate 3 and the mold tool 6 is maintained under closing stress or tension between the two mold support plates 2 and 3 in the stretched position of the toggle lever system or systems 7.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.