System and method for moving and unbundling a carton stack

A system (1) for moving carton stacks (3) from a pallet (2) to a receiving position (7), where each of the carton stacks (3) is held together by a strap (36), where the receiving position (7) comprises at least one carton support adapted to support the carton stacks (3) in a vertical position, the system comprising:

• an industrial robot (4) provided with a gripping head (20), where the gripping head (20) comprises a cutting module (28) provided with a cutting means (29),
• at least one position for a pallet (2) holding several of the carton stacks (3), where the receiving position (7) is arranged to receive each of the carton stacks (3) in a vertical orientation, and
• a waste bin (8),
• wherein:
• the gripping head (20) comprises an optical detection means (40) adapted to detect the position of a print on a carton such that the orientation of each of the carton stacks (3) and the position of a strap (36) can be determined,
• the robot (4) is arranged to move at least one of the carton stacks (3) from a horizontal position at the pallet (2) to the vertical position at the receiving position (7), such that during the movement to the receiving position (7) the at least one of the carton stacks (3) is tilted from the horizontal position to the vertical position,
• the cutting means (29) is arranged to cut off the strap (36) at the receiving position (7), and
• the gripping head (20) is arranged to hold the strap (36) and to be moved to the waste bin (8), where the gripping head (20) is arranged to release the strap (36) into the waste bin (8).