Press machine has approximation straight line mechanism which exerts horizontal directional force with respect to pin, as rotary motion of each eccentric portion of crankshaft is converted to raise or lower slide

摘要

Approximation straight line mechanism (22) exerts a horizontal directional force with respect to pin (34), as the rotary motion of each eccentric portion of crankshaft (14) is converted to raise or lower a slide (16). The crankshaft is supported via frame (12).