| 摘要 |
PROBLEM TO BE SOLVED: To integrate a wall thickness detecting means with an anti-rolling means, and to accurately measure a wall thickness of a film, without flawing the film, in a film molding device for molding the tube-like film. SOLUTION: A noncontact type thickness sensor 14 is provided to be freely rotatable along an outer circumferential face of the film 5, in a position with a distance S within a proper range from the outer circumferential face of the film 5, an anti-rolling mechanism 15 is arranged in at least one side out of an upstream and a downstream of the film 5 with the noncontact type thickness sensor 14 therebetween, and the anti-rolling mechanism 15 is constituted to be turn-moved integrally with the noncontact type thickness sensor 14. COPYRIGHT: (C)2010,JPO&INPIT |
