CONTROL SYSTEM AND A METHOD FOR ACTUATING METAL FORMING MACHINES SUCH AS PRESSES, FORGING PRESSES OR EXTRUSION PRESSES

摘要

The invention relates to an apparatus for hydraulically actuating processing machines like metal forming machines (72 to 77) and method, control and application of an apparatus for actuating said metal forming machines. The processing machine is driven by at least two pressure generators (1,2) with pressurized fluid, like water, whereas the pressure generators are actuated by variable pumps (31 to 33) with different fluid under pressure, e.g. hydraulic liquid.