| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an apparatus for manufacturing a plastic sheet with a ruled line for folding capable of heating the plastic sheet at a uniform temperature and forming a smooth ruled line on the sheet. <P>SOLUTION: The punching apparatus for manufacturing the plastic sheet with the ruled line for folding the plastic sheet and processing it into a container, is characterized by arranging (1) a flat platen fixing a cutting die in which a cutting edge including a ruled line-forming edge is embedded, and (2) a flat platen for keeping warm equipped with a warm keeping mechanism provided with a flow path consisting of a narrow pipe in which a warm keeping liquid can flow opposite to the flat platen fixing the cutting die in which the cutting edge including the ruled line-forming edge is buried. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
