Row by row tier forming with spaces in a stacking system

Details Row by row tier forming with spaces in a stacking system Row by row tier forming with spaces in a stacking system

B - Operations, Transporting

65

G

270/58

B65G 57/22 (2006.01) B65G 57/26 (2006.01)

Patent

CA 1049575

ROBERT E . BOWSER ROW BY ROW TIER FORMING WITH SPACES IN A STACKING SYSTEM ABSTRACT OF THE DISCLOSURE In a palletizer, various load patterns are achieved through the arrangement of tiers or layers of rows of cartons, each constituent row therein having a given width. A conveyor is provided with a first side at which the rows of cartons are received at spaced intervals and a second side. The conveyor, when actuated, is effective to transport the rows of cartons thereon towards the second side thereof. The conveyor actuator, responsive to the number of rows of cartons present on the conveyors is effective, subsequent to the entry of each of the incoming rows of cartons at the first side of the conveyor, to actuate the conveyor to transport the rows presently thereon a distance substantially equal to the width of the incoming row, when less than R rows are present on the conveyor, and a selected distance sufficient to move the leading row of cartons on the conveyor to the second side thereof, when R rows are present therein. This method of row formation prevents skewing of the cartons as is common with conventional tier forming methods and, in addition, gaps between the cartons in adjacent rows can be preserved without the necessity for retractable stops. Re- tractable stops are provided at various positions along the conveyor. The rows of cartons can, where not being formed by the above method, be advanced to a stop or, alternatively, to an end stop at the second side of the conveyor in order to provide additional versatility in tier formation,

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