Patent ID: 6099450
Filing Date: 2000-08-08
Classification: B31B

Abstract:
A squaring device for use in a box folding machine for folding a box carried by a lower conveyor and gluing the box at a scam, comprising:(a) an upper carriage upon which are mounted at least two outer belts and a pneumatically actuated central belt;(b) means for laterally adjusting the carriage relative to the lower conveyor so that the central belt is aligned with the box's glued seam;(c) at least two pneumatically actuated squaring fingers mounted in the upper carriage for intercepting the box's bottom panel until the box's upper panel is driven forward by the at least two outer belts until the upper panel reaches the squaring fingers, whereby the box is brought into square, and for retracting after the box is brought into square; and(d) means for varying the central belt's position during the machine's operating cycle in order to compress the glued seam after the box has been brought into square.