| 摘要 |
PURPOSE:To produce a synthetic resin foam-molded product being excellent in quality, by a method wherein, after a resin foaming sheet is brought into direct contact with a pair of heating plates for heating and softening, a molding is conducted. CONSTITUTION:A synthetic resin foaming sheet 1, wound around a winding roll 2, is unrolled, the sheet is positiond by the nip formed by heating plates 3 in a manner to bring it into direct contact with the plates 3, and it is usually heated to about 100-170 deg.C for softening. At a heating time, the synthetic resin foaming sheet 1 is softened and simultaneously is secondarily foamed to hold it in a thickness within a size range to allow the molding of the sheet. A molding is then conducted by a mold 4 consisting of a male force 4a and a female force 4b to produce a molded product 13. As above, a secondary foaming thickness of a foaming sheet 1' covers a size range which is sufficiently thick to allow the molding of it, and there occurs no damage such as scrub flaws due to friction with the force 4 at a molding time, whereby a molded product having an excellent quality can be produced. |
