BAG OPENING AND CLOSING MACHINE

摘要

A method of opening and closing a bag having a front and a rear and an opening at the top includes feeding the bag to a machine which holds an upper end of the front of the bag, moves the upper end of the rear of the bag rearwardly to partially open the bag clamps each opposite side of the bag while the bag is in the partially open configuration, and moves the clamped opposite sides of the bag and the rear of the bag rearwardly to a fully open position.