PURPOSE: To enable a die indexing at high speed by operating a timer based on a speed reducing timing signals and reducing the speed of a turret shaft with a timer-off.

CONSTITUTION: The turret 11 equipped with plural die stations is rotated by a turret shaft 13. A each station of the side face of the turret 11, the hole H for fitting a shot pin is pierced and the shot pin 5 driven into this hole H is provided. To the position detector 19 of the turret shaft 13, a rotary dog 21 for speed reduction and stoppage and a rotary dog 23 for detecting the station are fixed freely rotatable. The turret shaft 13 is driven by an induction motor, the station position is detected by the detection of the dog 23 by a sensor and the timing signal of speed reduction and stoppage is formed by the detection of the dog 21 by the sensor. The speed reduction timing is therefore adjusted optionally by the timer and the turret shaft 13 can be stopped by a stop timing signal TSTB.