| 摘要 |
PURPOSE:To prevent generation of flashes or a sink, by a method wherein a flow preventive member is provided on an intermediate part molding surface between a recessed part and placing position of a base material in a molten state by a manufacture of a composite molded material having a through hole and the same is controlled so that a flow of the base material to a recessed part is prevented until a time directly before completion of mold clamping. CONSTITUTION:A skin layer 24 obtained by laminating a skin material 17 of a PCV sheet and a polypropylene cushioning material 18 is charged inbetween molding surfaces 25, 26 of a top force 21 and bottom force 22. A base material 23 which is heated and in a semimolten state is put on a part in the vicinity 26b of the center on a molding surface 26 of the bottom force 22. Since a flow preventive member 29 is pushed up by a spring 32 and projected from the molding surface 26, the base material 23 does not flow directly into a recessed part 26a. When the top force 21 is pushed down and the skin layer 24 and base material 23 are molded, abutting pins 31a, 31b are pushed down by both end parts of the molding surface 25 and flow preventive member 29 is pushed down through connecting plates 30a, 30b. Therefore, the base material 23 is extended completely and a molded material which has a through hole part 20c formed precisely and is free from flashes or a sink, is obtained. |
