Palletizer

Abstract

A palletizer for stacking cargo, such as bags or boxes, onto a pallet in multiple layers is disclosed. The palletizer includes a main frame extending in vertical direction; pallet lifting means for lifting a pallet, which pallet lifting means are arranged to the main frame and are movable in vertical direction between the base of the main frame and the top of the main frame; a manipulator arranged to the top of the main frame for positioning the cargo and forming a layer on top of a pallet lifted by the pallet lifting means; and a supply main conveyor, such as a belt conveyor, arranged with one end to the top of the main frame for supplying cargo to the manipulator. The manipulator includes a sub-frame movable in a horizontal plane relative to the top of the main frame; a first floor arranged in the sub-frame and a second floor arranged in the sub-frame and above the first floor, wherein each floor has an opening, which can be closed by a door, such as a trap door, and wherein the openings in the floors are aligned when viewed in a vertical direction; and a supply sub conveyor arranged with one end adjacent to the one end of the supply main conveyor and arranged with the other end to the sub-frame and adjacent to the opening in second floor, such that cargo is conveyed on top of the door closing the opening in the second floor. The first floor is rotatable relative to the sub-frame and around a vertical axis.

Dependencies are inferred from the claim text.