| 摘要 |
PROBLEM TO BE SOLVED: To at least tune a shaftless rotary press operating to print by being driven by a separate motor with a deceleration of a driven unit even at the time of a power interruption and to stop the press. SOLUTION: The rotary pres comprises printing units 1, 2 and a folding unit 3 respectively having motors 11, 12, 21, 22, 31 and 33 to be synchronously operated. The rotary press comprises inverters 4 for controlling rotations of the respective motors, a basic command output unit 7 for outputting a normal time basic speed command signal at the normal time and outputting a power interruption time basic speed command signal and power interruption time basic voltage command signal at the time of the power interruption, a power interruption detector 5 for outputting a power interruption signal, a power interruption time power supply unit 9 for storing a power and supplying the power at the time of the power interruption, and a control command output unit 8 for outputting a normal time control speed command signal according to the normal time basic speed command signal at the normal time, comparing the power interruption time basic voltage command signal with the output voltage detection signal of the power interruption time power supply unit at the time of the power interruption, correcting the power interruption time basic speed command signal and outputting the power interruption time control speed command signal. |
