| 摘要 |
A bag packaging method by which a mouth portion of a thin plastic-made bag filled with articles can be sealed without creases is provided. A bag 4 filled with sliced bread 1 is conveyed by a blade conveyor 6. A mouth portion of the bag 4 is led between upper and lower two conveyor belts 20, 21. While a suction force acting on upper and lower sides of the mouth portion is applied from vacuum chambers 23, 24 through the conveyor belts 20, 21, air is blown from a sirocco fan 13 toward a mouth of the bag 4 so that the mouth portion of the bag 4 is opened. Two mouth spreader bars 30 having an interval between their distal ends narrowed are inserted into the bag 4 so opened. Then, the mouth spreader bars 30 have the interval widened to thereby spread the mouth portion flat. The mouth portion of the bag 4 spread flat is pinched and sealed by a sealer 50 without generation of creases. |
