| 摘要 |
<p>A gable-bottom carton gripper (68) is disclosed for lifting and transporting container blanks (10) between various positions within a packaging machine. Container blanks are sealed in a gable-bottom configuration using predesigned sealing jaws (44, 46). The sealing jaws feature strategically placed ribs (52, 54) which, during ultrasonic sealing of the container bottoms, cause the formation of a longitudinal bubble (56, 58) disposed along a bottom fin (42) of each gable-bottom container. A carton gripper is adapted to grip the bottom fin while supporting the bottom panels of the container. The gripper includes a rigid member bent to conform to the shape of a gable-bottom container, with a gripping edge defining a fin channel (79) to secure the bottom fin within a fin chamber. The longitudinal bubble prevents the fin from being displaced from the fin chamber during the lifting and transporting process.</p> |
