Abstract: A thin sheet forming roll includes a metallic elastic external cylinder (102) comprising a metal tube capable of elastic deformation, a shaft portion (103) for closing both ends of the metallic elastic external cylinder (102), and a cooling fluid (104) filled under an internal pressure into the metallic elastic external cylinder (102). When a melt resin from a die of an extruder is pinched between the roll and an opposite roll, that part of the metallic elastic external cylinder (102) which is pressed against the melt resin changes into a shape adapted to the outer diameter of the opposite roll, because the metal tube of the metallic elastic external cylinder (102) is elastically deformable against the pressure of the cooling fluid. Thus, a smooth thin sheet free from bank marks is formed.

Abstract: A multi-shaft turret type winding device including a first turret table on which a plurality of winding mandrels for winding a thin layer film are rotatably arranged, a second turret table on which a plurality of fixing axes are arranged corresponding to the respective winding mandrels, and a touch roller following mechanism in which each touch roller arm having a touch roller attached at a front end is attached at each fixing axis. When a predetermined amount of the thin layer film is wound by one of the winding mandrels at a winding position, the winding mandrel is swung from the winding position to a different position, and another winding mandrel is swung to the winding position by synchronously rotating the first and second turret tables. Under this condition, the touch roller always contacts a product roll of the thin layer film wound on the winding mandrel while maintaining a constant position with respect to the wound thin layer film.