| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an apparatus and method for manufacturing a film or a sheet having a superior quality by sufficiently reducing attachment of foreign matter to the lip mouth of a die. <P>SOLUTION: The apparatus for manufacturing the film or the sheet includes an extruder, a die, a flow path which communicates the extruder with the die and a resin displacement mechanism which is disposed in the middle of the flow path, has such a configuration that the flow path is divided into a plurality of branched paths and, thereafter, the plurality of branched paths are again joined together, and changes positions of molten resin flowing through the flow paths. The resin displacement mechanism has at least first and second branched paths by which the molten resin fed from the flow paths is separated in an X-axis direction, on the position where the molten resin is transferred in a Z-direction toward the die. The first and second branched paths are separated from each other in the X-axis direction on the upstream side, thereafter, are extended so as to come close to each other and the positional relation in the X-axis direction is reversed and the first and second branched paths come close to each other and are joined on the downstream side. <P>COPYRIGHT: (C)2012,JPO&INPIT |
