PURPOSE: To lift the die placed on a roller together with the roller, and enable turning, loading and unloading of the die by means of the roller, by internally furnishing cam mechanism and wedge mechanism and operating the lever handle manually.

CONSTITUTION: When a lever handle 24 is tilted, a rod 13 is caused to advance and slide with respect to a base frame 17 by means of the cam mechanism of a cam 23. A pin 22 inserted into a hole 20 moves into a wedge hole 19 in reverse phase, and a taper head part 21 to which pressing force is applied will slide downwards, so that the pin 22 projects from the lower face of the base frame 17, thereby abutting against the bottom of reverse T-groove 6. The vertical downward pressing force acts as vertical upward pressing force on the rod 13 so that the rod 13 is caused to slide upward until abutting against the lower face of a die 4 mounted on a bolster 2. The die 4 is lifted to float above the top of the bolster 2 so as to be placed on rollers 15, 15... of the roller conveyor. Thus, by rolling friction of the rollers 15, 15..., the die 4 may be discharged manually.