| 摘要 |
An improved press line is described which comprises at least one mechanical press with at least one electric drive motor (20), a ram (23), a mechanical means (27, 25) for operating said press, and one other device or auxiliary production device, which press is arranged so that the speed (W) of the at least one said drive motor may be varied during at least one pressing or non-pressing part of a press cycle. Improved operating characteristics and optimised energy use and cycle times are obtained by controlling the speed of said motor and synchronizing a movement of said press to a movement or position of at least other device, loader or other press. A system comprising such a press is described, and a computer program for controlling the press line. |
