Tandem press line, operation control method for tandem press line, and work transportation device for tandem press line
A rotating speed of a main motor of a second press is regulated so that an angular difference between a press angle of a first press and a press angle of a second press is constant. Further, when the work is carried-out from the first press, a work transportation device is controlled based on a pres...
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| Format | Patent |
| Language | English |
| Published |
30.09.2008
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| Online Access | Get full text |
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| Summary: | A rotating speed of a main motor of a second press is regulated so that an angular difference between a press angle of a first press and a press angle of a second press is constant. Further, when the work is carried-out from the first press, a work transportation device is controlled based on a press angle of the first press. When the work is carried-in into the second press, the work transportation device is controlled based on a press angle of the second press. Further, when the work is transported, the work transportation device is controlled based on a signal from a transportation device control section for controlling the work transportation device. The arrangement above improves production efficiency in press forming and reduces maintenance cost and frequency. |
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