Apparatus for internal high-pressure molding
US5570602A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 19, 1995 |
| Grant date | Nov 5, 1996 |
| Priority date | — |
| Expiry date | Jan 19, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21D26/047
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
In an apparatus for molding particularly a tubular blank (1) of a ductile metal with internal high pressure in a mold, which has a cavity (5), a lower part (2) and a removable upper part (3) as well as a mechanism (6, 7, 13-21) for holding the upper (3) and lower parts (2) together, this mechanism consists of a pot (7), which is provided with a lid (15) and in which the mold (2, 3) is inserted. Between the pot (7) and the lid (15), a bayonet lock (13-20) is provided with a row of interlocking devices (14, 19), which can be brought into and out of engagement by means of a ring (16), which can be rotated relative to the mold (2, 3), and with an annular (9; 21) introduction of force into the lower part (2) and the upper part (3) near their circumference. Said ring (16) is disposed at a lid (6), which is mounted on the upper part (3) of the mold and can be rotated by means of a hydraulic cylinder (17) acting with a tangential force component between the remaining lid (15) and the ring (16) over oscillating cranks (18) hinged at the remaining lid (15) and the ring (16) with approximately radial extent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.