| 摘要 |
PROBLEM TO BE SOLVED: To provide a device for a rotary automatic packaging machine which converts a plane bag to a tetrahedral bag, in which a device for opening and rotating the bag is additionally equipped on an existing rotary automatic packaging machine, and a tetrahedral product is produced with original construction of the existing rotary automatic packaging machine.SOLUTION: A rotary automatic packaging machine comprises: a gripper consisting of gripper pair clamping a bag and a gripper roller driving the gripper pair; and a barrel cam comprising a rotary axis and a cam which is attached above the barrel cam on the rotary axis so as to move in one round trip and adjusts a gap between the pair of grippers. The rotary automatic packaging machine comprises: an arm part which is attached on the rotary axis of the rotary automatic packaging machine and moves in repeated round trips until one step in the rotary automatic packaging machine; a rotation member attached on the arm part; and a bag clamping member which is attached so as to be rotated by the rotation member and clamps both side surfaces of the bag while opening an inlet port of the bag at inner section of a supplied bag. |
