The vision alignment instrument is a special devicedeveloped to solve the problems of inaccurate hotstamping position, color jamming, and uniform colorexposure caused by paper expansion and contraction.As the last safeguard of the post-process, the visionalignment instrument can effectively avoid the problemof inaccurate die positioning caused by paper expansionand contraction, thereby avoiding the loss of machinehours and materials caused by multiple re-printing andfailure to find the correct point.