Automatic Stacking Machine for Corrugated Box

Automatic Stacking Machine for Corrugated Box

A corrugated cardboard box stacking machine in a corrugated cardboard box making machine wherein the space for stacking manufactured and folded corrugated cardboard boxes is divided into two of lower and upper spaces of a corrugated cardboard box storing space and a corrugated cardboard box stacking space which is positioned above and a little ahead of the storing space, and the uppermost cardboard box of a group of stacked corrugated cardboard boxes is moved by a kicker one by one to the corrugated cardboard box stacking space where a group of the corrugated cardboard boxes are moved at once to a delivery belt by a pusher bar when the number of the boxes have reached a predetermined number. The pusher bar does not affect the group of the corrugated cardboard boxes stacked in the storing space and an exact number of a group of the corrugated card board boxes in the stacking space can be moved at once to the delivery belt and the like.

A conventional corrugated cardboard box stacking machine generally has a structure as shown in FIG. 10. In other words, corrugated cardboard boxes A formed in the folding section E are fed one by one to the corrugated cardboard box stacking machine in the horizontal direction, and then the boxes are forwarded onto a feed belt 52 passing through a pair of rotary screws 51 pro vided at left and right sides. Thereafter, they are ad vanced by the feed belt 52 and stopped by hitting a stopper 53 As a result, the front portion of the box A is supported on the feed belt 52 and both of the rear sides are supported on spiral vanes 51:: of the rotary screws – 51. The rotary screw 51 is provided with a spiral vane 51a which is wound around a multiplicity of times and the corrugated cardboard boxes A are stacked upward from lower portion in the area between the spiral vane 510 having a little space between each of the boxes. With rotation of the rotary screws 51, the corrugated cardboard box A is successively lifted and the boxes are also stacked on the top portion 51! of the rotary screws 51 and the top portion 53t of the back stopper 53 as shown in FIG. 10. When the number of corrugated cardboard boxes stacked on both of the top portions 51!,53t reached a predetermined number of sheets, a pusher bar 54 is advanced as shown by phantom line in FIG. 10 and a predetermined number of corrugated cardboard boxes A are moved at once toward discharge rollers 55. A stacked group of the corrugated cardboard boxes moved onto the discharge rollers 55 are conveyed to a predetermined location to be bundled thereat.

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