<p>In the knife folding machine of the present invention it is possible to easily adjust the stroke of the reciprocal movement of the knife blade 5. The rod 10 is reciprocated by the feed screw 12. The feed screw 12 is rotated by the servomotor 14. Thus when the knife blade 5 reciprocates between the first and second positions, the first and second positions thereof are separately adjusted by controlling the amount of the rotation of the servomotor 14.</p>
