US 10,000,032 B2 · Method for operating a press with an underneath drive and press operated according thereto

Abstract

A method and a press are proposed for an energy-efficient drive of a press (1) with a bottom drive, in which a drive device (2) disposed in a bottom section (3), a plunger (1.1) executing a stroke (H) and receiving an upper tool part (1.2) with at least one acting tie rod (2.1.2) of a drive train (2.1) are provided and the upper tool part (2.1) corresponding to a bottom tool part (3.2) disposed in the bottom section (3) machines or forms a work piece (5). The drive device (2) is operated by at least one motor (2.1.1) and by way of a control and regulation device (4) connecting the motor (2.1.1) and the drive train (2.1). Each drive train (2.1) can be operated by its own motor (2.1.1). When using a drawing device with a holder (3.3.1), it is operated in the change and during at least a partial path of the respective stroke (H) by the drive train (2.1) while observing a shaft-type free space (3.2) provided in the bottom section (3) in a coupled or decoupled manner by a releasable rotatory or translational active connection.

Claims53

Dependent claims

A method for operating a press, wherein a work piece is machined or formed by:

a drive device arranged in a bottom section, and
at least one plunger configured to execute a stroke and to receive at least one upper tool part which comprises at least one acting tie rod of at least one drive train, the at least one upper tool part corresponding to at least one bottom tool part being arranged in the bottom section, and
a drawing device comprising a holder,
the method comprising:
driving the drive device by at least one motor as a linear and/or a rotary direct drive;
and when using the drawing device,
operating a path of the drive device so that the drive device is couplable or decouplable from a complete stroke of the at least one plunger so that the stroke of the at least one plunger and the drawing device are always operated in a closed force flow;
and
operating the at least one drive train so that the at least one drive train is coupled or decoupled to the drawing device by a releasable active connection which is at least one of rotatory and translational in a change of a respective stroke.

6 more elements

Dependencies are inferred from the claim text.

Method for operating a press with an underneath drive and press operated according thereto

Life of this patent

Method for operating a press with an underneath drive and press operated according thereto

Life of this patent

Abstract

Claims53