| 摘要 |
PROBLEM TO BE SOLVED: To feed a gusset bag having a folded pleat on both sides to a packaging machine without naturally opening the gusset bag. SOLUTION: A sleeve 21 is made to descend by a first cylinder 18 along a pole 16, and a suction cup 26 is press-bonded to the upper surface of the gusset bag 10 by the elastic force of a tension spring 21, and then, the suction cup 26 is rotated with a pin 25 as the pivot by a second cylinder 30. In this case, a corner 37 of the suction cup slides while being in contact with the upper surface of the stacked gusset bags 10 by the tensile force of the tension spring 21. This state makes the bag mouth slide under a state in which the opening of the gusset bag is not allowed, and therefore, the bag is bent while the inside of the bag keeps a negative pressure state, and the folded pleat is not separated at the bent section 40. COPYRIGHT: (C)2007,JPO&INPIT
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