Press drive with several modes of operating a press and method for operating a press drive
US9770879B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 15, 2013 |
| Grant date | Sep 26, 2017 |
| Priority date | — |
| Expiry date | Nov 4, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/18184
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A press drive for a press includes an elbow lever drive. The elbow lever drive includes a first lever, a second lever and a connecting rod. The lengths of the two levers as well as the connecting rod are fixed. The first lever is pivotally supported on the press frame by a first support bearing. The second lever is supported on the plunger via a second support bearing. The connecting rod and the two levers are supported by an elbow joint so as to be pivotable relative to each other about a common pivot axis. The connecting rod is driven by an eccentric drive. An adjustment arrangement is provided for moving the eccentric drive relative to the press frame or respectively, the first support bearing. In this way, different operating modes can be established depending on the position of the eccentric drive along the adjustment path.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.