| 摘要 |
PURPOSE:To obtain a high-quality roll product without wrinkles by disposing a bar provided with a pressure reducing chamber and a sucking port, and adsorbing a film to the bar so that the film can be cut in a tense manner without slackening and sticked to a new take-up core. CONSTITUTION:A take-up portion 1 in a film slitter is adapted to roll a film 2 cut to a fixed width round take-up cores 8 mounted on left and right take-up arms 7, and when the core 8 is rolled up, the film 2 is taken up on another roll by operation of a through bar 11. In this case, the through bar 11 has both ends supported on a switch arm 13, and is rotated by a motor. The through bar 11 has two suction paths 18, 19 as pressure reducing chambers axially extended in a space between pipes 16, 17 double-circular in section, and a plurality of suction ports 20, 21 are disposed axially in such a manner as to communicate with the respective suction paths 18, 19. Further, there is provided a groove 22 axially extended between the suction ports 20, 21, so that a cutting edge 23 moved by air pressure can be projected. |
