Patent
1976-06-30
1978-04-04
Paperner, L. J.
214 6DK, B65G 5724
Patent
active
040821943
ABSTRACT:
A wheel-supported palletizer frame structure has an empty-pallet magazine containing an empty pallet stack from the bottom of which empty pallets are delivered one by one to a hydraulic scissors pallet elevator while the rearward ends of the pallets remaining in the stack are temporarily lifted. The pallet elevator has a table which is raised and then lowered step-by-step by a hydraulic scissors mechanism from successive elevated positions wherein the platform or each tier of bags thereon is lowered in timed relationship with a rotary and reciprocable open-ended bag positioner. Filled bags are fed one-by-one to either of the opposite ends of the bag positioner from a horizontal bag conveyor aligned with the bottom of the bag positioner and coupled thereto for travel back and forth therewith. The bag positioner is rotatable between either of two longitudinal positions aligned with the conveyor and movable into any one of a plurality of lateral positions disposed transverse to said bag conveyor. The bag positioner is also movable laterally of the bag conveyor to position the bags dropped therefrom onto different longitudinal positions parallel to the bag conveyor. The bag positioner is also mounted for motion transverse to the direction of motion of the bag conveyor to deposit the bags in different lateral positions perpendicular to the bag conveyor. The open-ended bag positioner enables individual bags to be swung horizontally to positions 90.degree. and 270.degree. apart in order to position the sewed end of each bag on the inside of each tier of the stack of bags on the pallet. The four-wheeled mount of the entire machine enables it to be moved bodily to any desired position upon the floor of the warehouse or other palletizing building.
REFERENCES:
patent: 2655271 (1953-10-01), Cole et al.
patent: 2701650 (1955-02-01), Stevenson
patent: 3324623 (1967-06-01), Johnson et al.
patent: 3416674 (1968-12-01), Gualandris et al.
patent: 3612300 (1971-10-01), Berghgracht
patent: 3730357 (1973-05-01), Beaty et al.
patent: 3921825 (1975-11-01), Sheehan
Bugbee Willis
Paperner L. J.
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