| 摘要 |
PURPOSE:To make it possible to wind up a film with no crease, slack and hard winding, by arranging an out-feed section having an out-feed roller just before a wind-up part composed of a wind-up roller, and by controlling and driving both rollers with the use of d.c. motors. CONSTITUTION:An out-feed roller 3 and a wind-up roller 5 are rotated by d.c. motors, and the shaft 5 of the wind-up roller is controlled to be moved while visually observing the gap 6 between both rollers 3, 5 so that both rollers 3, 5 always make contact with each other or are in such a condition that they substantially make contact with each other. Further, the d.c. motor for the wind-up roller 5 is manually controlled in such a way that the peripheral speed of a film 1 wound up on the wind-up roller 5 is constant irrespective of the outer diameter thereof and the tension thereof has a low constant value. Then, if there is a large difference in tension of the film 1 between both rollers, it is possible to wind up the film with no crease, slack and hard winding being produced in the film 1 due to sufficient winding contact friction onto the roller 3, the control of the d.c. motor and a slight gap between both rollers 3, 5. |
