| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a device well preventing wrinkles of a film generated upon sealing end. <P>SOLUTION: In this wrinkle removing device, sandwiching members 14 move from both outer sides intersecting with a film conveyance path toward inside, both-side edges of a tubular film 5 crushed by a predetermined amount by a sealing end operation carried out by sealing bars 1 and 2 are sandwiched by film abutting parts 19 at anteroposterior positions sandwiching the sealing bars 1 and 2 and are pulled toward the outside. Holding members 4 have first holding parts 6 and second holding parts 7. At an anteroposterior position sandwiching the sealing bars 1 and 2 when the tubular film 5 is sandwiched by the sealing bars 1 and 2, the first holding parts 6 sandwich the tubular film 5 over a predetermined range of a width-direction center part of the tubular film 5 at a position near the sealing end position of the tubular film 5. In both sides of the first holding parts, the second holding parts 7 are distant from the position of the tubular film 5 held by the first holding parts 6 toward a film conveyance direction, and the second holding parts 7 provide space S including the part sandwiched by the sandwiching members 14 between the side surfaces of the sealing bars 1 and 2 and the holding parts and sandwich the width-direction both sides of the tubular film 5. <P>COPYRIGHT: (C)2010,JPO&INPIT |
