PURPOSE: To make the constitution simple and small so as to increase a kind of working by laying out a worm engaged to a worm wheel arranged in each die and constituting so that one end of the worm is coaxially coupled with a drive shaft arranged in main body side.

CONSTITUTION: As a servo motor 40 is driven, a drive shaft 50 is rotated through belts 42, 43, pulleys 47, 48, belt 52, pulley 51, the worm shaft 37 connected to the drive shaft 50 through a coupling 57 on the extension of the shaft 50 is rotated, and a direction of an upper die is changed with rotating a worm wheel 34a of a holder 34. Further, in a lower die, a holder 33 is rotated in the same way from a rotating drive mechanism A through belt, the upper die and lower die are aligned, executing working, other dies on turrets 31, 32 are rotated in the same way.