PURPOSE: To provide a press machine which has a remarkably simple work feeding mechanism and other structure by using a servo motor and an eccentric cam, and moving up and down a lower die.

CONSTITUTION: A servo motor and an eccentric cam 8 are used, a lower die 12 is made to be moved up and down between a 1st position to change the lower die 12, a 2nd position to change a work, a 3rd position to mount and detach the work on the lower die 12, and a 4th position to press the work by using an upper die 15 and the lower die 12. Therefore, the movement direction of a feed bar 16 is made only in the horizontal direction, the structure of a feed bar horizontal moving device 18 is made remarkably simply and the structure of the total press machine is also made simply.