| 摘要 |
PURPOSE:To effectively mold plural pieces of moldings having different shapes in a high yield at the same time at small cost, by relatively approvaching the cutting edge protruded to the direction of opening and closing of a cooling force and pushingly pressuring a semi-fabricated product at clamping molds. CONSTITUTION:Prefoamed thermoplastic resin particles are caused to be foamed with heat by filling them into the cavity of heating mold, and mutually molded in fusion to be a monobloc semi-fabricated product. Said semi-fabricated product is transferred to the cooling forces 16 and 18 of which the inner surface of one force is extruded with a cutting edge 27, and the forces are clamped under cooling. At clamping molds, the cutting edge 27 extruded on the bottom force 16 relatively approaches to the semi-fabricated product in the top force 18 pushingly pressured manner and penetrates the inside of semi-fabricated product, the tip thereof leading to its back. The semi-fabricated product is cut within the cavity 19 of cooling force, and plural pieces of products are formed. |
