Drive system of a forming press

US8549940B2 · kind B2 · utility

Assignee

• Mueller Weingarten AG · DE

Inventors

• Uwe Darr · Erfurt, DE
• Steffen Schmidt · Dresden, DE
• Edwin Goetz · Bad Waldsee, DE
• Gerhard Voegel · Sigmarszell, DE
• Wolfgang Meinhardt · Hohenkirchen, DE

Key dates

• Filing date: Jun 7, 2007
• Grant date: Oct 8, 2013
• Expiry date: Feb 4, 2030

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T74/18248
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

In a drive system of a forming press for driving the plunger with a crank mechanism controllable by a servomotor, the torques of the servomotors that are required to achieve a high pressure force for the plunger by means of intermediate gearing, preferably with a double gear transmission, to the cam or crank mechanism, wherein the symmetrically configured drive arms of multipoint presses for the right and the left pressure points of two-point presses or the pressure point groups of four-point presses are optionally mechanically synchronized with one another in such a way that each of the intermediate gears of the first or of one of the first gear transmissions is effectively connected to the others.