| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a bag forming and packaging machine which enables stable production of a bag having high self-standing performance even when the running speed is increased.SOLUTION: In a bag forming and packaging machine 100, a second press bending mechanism 18 press-bends a side part EP of a bag lower part FA along the longitudinal direction of a lower seal part SL2 to form a bottom part FB of a cylindrical film Fc. The second press bending mechanism 18 includes a base part (first pressing part) 823a and a rising part (second pressing part) 823b. The base part 823a presses a first part of the side part EP of the bag lower part toward the central part CP and a columnar leg part 61 of the bag lower part FA. The columnar leg part is located inside the cylindrical film and comes in internal contact with the side part of the bag lower part press-bent by the second press-bending mechanism. The rising part 823b is located forward relative to the base part 823a in the press-bending direction and presses, toward the central part of the bag lower part, a second part of the side part of the bag lower part on the tip side relative to the first part.</p> |
