| 摘要 |
PURPOSE:To prevent the falling of a condensed liquid of a molten resin to an air blowoff port by allowing the molten resin to flow toward the rear edge of an upper plate member without accumulating the same on the upper plate member by forming the upper plate member of an air chamber so as to downwardly incline the same from the front edge to the rear edge thereof. CONSTITUTION:A resin to be extruded is emitted in a film form from a T-die 1 to be wound around a rotary cooling roll 3 to be cooled and solidified and the formed film is successively taken up by a takingup device while both ends thereof are trimmed. An air chamber 8 sprays air on the surface of the film 2 in the vicinity of the area where the film 2 comes into contact with the cooling roll 3 not only to bring the film 2 into close contact with the cooling roll 3 but also to cool the same. Since an upper plate member 11a is inclined from the front edge 15 to the rear edge 16 thereof, a condensed liquid is not accumulated on the upper plate member 11a and flows toward the rear edge 16 and does not fall to the air blowoff port 9 of the air chamber 8. |
