Presses – Methods
Patent
1992-09-01
1993-07-06
Brown, David H.
Presses
Methods
100918, B30B 1300
Patent
active
H00012033
ABSTRACT:
In a power press having a vertically moveable slide and upper and lower dies which may be transported to and from the power press by means of mobile bolsters, an automatic die change system utilizing microprocessor control. The microprocessor storing data regarding each die set and carrying out the die change operation based on that stored data. The microprocessor control permitting multiple steps in the die change procedure to be carried out simultaneously, thereby reducing the time necessary to effect a die change. The microprocessor control further reducing the time necessary to change a die set by adjusting the slide counterbalance pressure to a level within a predetermined range.
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