PURPOSE: To easily adjust a position of a feed pawl at rearrangement, by moving the plural feed pawls by the prescribed distance in the direction at a right angle with the feed direction of a frame through the responsive movement of a cam part of a plate cam and cam follower.

CONSTITUTION: A cam part 97a of a plate cam 97 is positioned under a condition in which recessed parts of depth 1.27 from both sides of the cam 97 are mutually lapped, and a cam follower 98 on a feed pawl is placed in the recessed part, while a cam follower 99 is placed in the outside of the cam 97, under this condition, the feed pawl is in a position to be inserted into a feed pawl hole 65b to the left side 1.27 from the center line of a frame 65, here a cylinder 102 is operated, if the cam 97 is moved in the direction of an arrow head A, the followers 98 and 99 are respectively contacted to the outside of the cam 97 and the recessed part of the part 97a, and a feed pawl 91 is advanced by 1.27 in the direction of an arrow head B and aligned to the center line of the frame 65, if one plate cam is moved, a plural number of feed pawls are simultaneously moved.