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AssigneeMueller Weingarten AG
InventorsUwe Darr, Steffen Schmidt, Edwin Goetz, Gerhard Voegel, Wolfgang Meinhardt
Estimating the term…
A drive system of a forming press for driving the plunger with a crank mechanism controllable by a servomotor is refined in such a way that on the one hand a high pressure force is achievable with the available torques of servomotors and that on the other hand the technical complexity of the drive is reduced during the design of the drive with multiple mechanically synchronized pressure points and also with pressure points that can each be controlled independently of one another. The concept of the method consists of transferring 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.
-20. (canceled)
A drive system for driving a slide of a forming press, comprising a crank mechanism including at least one first crank wheel and at least one second crank wheel, at least one connecting rod operatively connected to each respective crank wheel and each connecting rod having a distal end connected to and forming a pressure point at the slide, at least one servo-motor operatively connected to the crank mechanism, a retention device and a device for torque isolation, and a first pinion shaft mechanically linked to the at least one first crank wheel on the one hand and to the at least one second crank wheel on the other hand, wherein the retention device and the device for torque isolation are mechanically linked to the at least one servo-motor and the mechanical link of the first pinion shaft to the crank wheels is direct engagement and the first pinion shaft is controlled directly by at least one of the servo-motors or the mechanical link of the first pinion shaft to the crank wheels comprises a second pinion shaft directly controlled by at least one of the servo-motors and a gear transmission wheel or intermediate gear through which the first pinion shaft is driven indirectly or the gear transmission wheel or intermediate gear mechanically links at least one first or second pinion shaft directly controlled by at least one of the servo-motors to at least one first or second pinion shaft not directly controlled by at least one of the servo-motors.
Dependencies are inferred from the claim text.