| 摘要 |
PROBLEM TO BE SOLVED: To provide a film transportation device being capable of stably transporting a film while avoiding an increase in size of the device and in environmental load, and a film drawing machine provided with the film transportation device.SOLUTION: A film transportation device 2 of a film drawing machine 1 comprises: a perforated endless belt 3 being laid between a driving pulley 4 and a driven pulley 5, circulating between the pulleys and transporting a film 10; a driving unit 6 driving the driving pulley; a plurality of air chambers 7 causing a perforated ceiling portion 7a to face a rear face of a film transportation face of the endless belt while being partitioned by a partition wall 70 from an upstream side to a downstream side in a transportation direction of the film and disposed side-by-side; a suction unit suctioning inside air of an uppermost stream air chamber and causing the film to be sucked to the endless belt; and a valve mechanism 8 causing the upstream side air chamber and the downstream side air chamber adjacent to each other with the partition wall interposed therebetween to sequentially communicate with each other in association with transportation of the film and uniformly adjusting an internal pressure of the upstream side air chamber and an internal pressure of the downstream side air chamber.SELECTED DRAWING: Figure 3 |
