STRETCHING DEVICE FOR RESIN FILM

摘要

PROBLEM TO BE SOLVED: To provide a stretching device for a resin film which prevents instable chucking and defective chucking of a tenter clip or prevents a chucking pitch from becoming uneven during stretching. SOLUTION: The stretching device 10 for a resin film includes clip chains 11. The clip chains 11 have tenter clips 17 which are lined up so as to hold right and left edge parts of a resin film and the clip chains 11 are trained over a follower sprocket 15 of the reception side of the resin film 50 and a driving sprocket 13 of the sending side so as to revolve between both sprockets and are symmetrically arranged with respect to the running direction of the resin film 50. The stretching device 10 further includes: a pair of tension adjusting means 25 which move the follower sprocket 15 in parallel to the running direction of the resin film 50 to adjust tension of the clip chains 11; and a pair of load adjusting means 30 which adjust a regular direction-rotation load of the follower sprocket 15. COPYRIGHT: (C)2011,JPO&INPIT