| 摘要 |
A device for folding a rear flap on a box blank characterized by the rotating members and their shaft being mounted in a cradle which is shifted in the frame relative to the path of the blank having the flap being folded. The shifting of the cradle is controlled by a stepping motor. The rotation of the folding members, as well as the position of the drive shaft for the folding members is controlled in accordance to the position of a hitting point of contact for the ends of the hook members with the flap relative to the creasing line. |
