B - Operations – Transporting – 31 – B
Patent
B - Operations, Transporting
31
B
270/53
B31B 1/14 (2006.01) B65H 29/24 (2006.01) B65H 31/30 (2006.01)
Patent
CA 1319161
Abstract A corrugated container blank stacker 10 is described for receiving rows of container blanks 12 from a sheet cutter and for stacking the container blanks in rows of stacks on a pallet. In the embodiment shown the stacker is able to receive container blanks in rows of three abreast and then forming three rows of stacks, three abreast, on a pallet. The stacker includes a transfer conveyor means 30 with vacuum belts 72 normally in alignment with the sheet cutter 16 for longitudinally spacing the rows of blanks, removing loose trim sheet material, and accurately placing the rows of blanks on a main conveyor 32. The main conveyor 32 has vacuum belts for conveying the rows of blanks in an arc path to an elevated position at a stacking station. At the stacking station, the rows of blanks are propelled against a backstop 160 and then descend onto a stripper plate 196 that is incremental downward to form a row of partial stacks. The partial stacks are deposited onto a pallet 36 supported on an elevator platform 151. The pallet 36 is indexed downward to form a row of completed stacks. The pallet 36 is then lowered beneath the backstop and indexed forward to position the completed row of stacks behind the backstop. The pallet 36 is then again raised to receive a second row of stacks. The process is repeated until the ballet is full of stacks before it is conveyed from the stacker 10 and a new pallet is brought into place.
614421
Riches Mckenzie & Herbert Llp
Thermoguard Equipment Inc.
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