Method of operating a press with a bottom drive and press operated according to this method

摘要

The present invention provides a method for operating a press which includes providing a press with at least one plunger which executed a stroke, an upper tool part, a sub-structure. A control and regulation device receives a value(s) on an operating condition from a system of the press. The value(s) are provided from the system of the press to the control and regulation device during a processing of a work piece. The value(s) provided are processed to the control and regulation device according to a function;F⁡(x)=Lx·F2
under the condition that
;L>x>L2
so as to permanently operate a movement of the plunger via a drive device and the press in a controlled manner or in a regulated manner according to a system of forces required for a work piece with a respective force which is actively influenced or is actively modified in a position and a dimension/amount.

主权项

1. A method for operating a press (1) with a bottom drive, the method comprising:
providing a press (1) comprising:
at least one plunger (1.1), the at least one plunger being configured to execute a stroke (h);at least one upper tool part (1.2);a sub-structure (3);at least one drive device (2) disposed in the sub-structure (3), the at least one drive device (2) comprising drive elements (2.1), at least one motor or servo-motor (2.1.1) and at least one tie rod (2.1.2) which are arranged to form at least one drive train (2.1.4) for the at least one plunger (1.1) and to receive the at least one upper tool part (1.2);at least one bottom tool part (3.2) disposed on the sub-structure (3);a control and regulation device (4) configured to receive a value(s) on an operating condition from a system of the press (1);wherein, the plunger (1.1) is configured to act with the at least one upper tool part (1.2) onto a work piece (5) to be processed lying on the at least one bottom tool part (3.2),wherein, the stroke (h) of the plunger (1.1) is operated via or ahead of a top dead center (OT) to or via a bottom dead center (UT); and providing the value(s) from the system of the press (1) to the control and regulation device (4) during a processing of the work piece (5); processing the value(s) provided to the control and regulation device (4) according to a function:F⁡(x)=Lx·F2  under the condition thatL>x>L2  so as to permanently operate a movement of the plunger (1.1) via the at least one drive device (2) and the press (1) in a controlled manner or in a regulated manner according to a system of forces required for the work piece (5) with a respective force which is actively influenced or is actively modified in a position and a dimension/amount,
wherein,
F(x) represents a force controlled according to the function,F2 represents a locally acting force,x represents an area of a variably acting force, andL represents a variable area of acting forces, andwherein the value(s) are collected and processed as data of at least,
one force and travel progression, andone element of the at least one drive device (2), a change of the operating value in the system of the press (1) or a process of the work piece (5) to be processed,which influence the stroke (h) of the plunger (1.1).