Patent ID: 8323163

Claim:
A positioning-jig for adjusting a face plate on a female-die that forms a stamping machine together with a male-die opposite to the female-die, the male-die having a metal-blade as a stamp-blade according to outline of a unfolded box body and a rule-blade according to a valley fold-line of the unfolded box body; and the face plate having a groove that accepts a projection according to a hill fold-line to be opposed to the valley fold-line, and two or more through-holes therein; and a marking-member stuck on the female-die by transferring from the male-die; and the positioning-jig being used on the female-die while the face plate adhered on the female-die guides the marking-members inside each of the through-holes; wherein the positioning-jig has a bottom side inner diameter and a bottom side outer diameter, and has a symmetrical shape at a top side; wherein the bottom side inner diameter of the positioning-jig is larger than an outer diameter of the marking-member, and the bottom side outer diameter of the positioning-jig is same or slightly smaller than the through-holes.