Manufacture of composite molded item

Abstract

Abstract PURPOSE:To efficiently mass-produce composite molded items having a complicated uneven shape, by contacting by vacuum molding a surface skin layer firmly with a first mold for forming an outer surface and then an intermediate material layer firmly with said surface skin layer, clamping them by the first mold and a second mold, and injecting and filling a molten resin or the like. CONSTITUTION:With molds 5, 6 open, using the first mold 5 a surface skin layer 3 is retained on the mold surface by vacuum molding. Then an intermediate material layer 2 is applied, and the air between the surface skin layer 3 and the intermediate material layer 2 is evacuated so that the intermediate material layer 2 is brought into firm contact with the surface skin layer 3 by vacuum molding. Then after the molds 5, 6 are clamped, a molten resin is injected between the intermediate material layer 2 and the molding surface 61 of the second mold 6, or thermally foamable resin beads are injected and filled therebetween, and are foamed, so that the intermediate material layer 2 and the substrate layer 1 are monolithically formed. Then the molds are opened, the intermediate material layer of the composite molded item removed from the molds is trimmed, and the periphery can be finished by folding the surface skin layer 3 onto the undersurface of the substrate layer 1.

Inventors

• 👤 Kiyoto Dezuki
• 👤 清人 出月
• 👤 Shigeo Shima
• 👤 島　重夫

Bibliographic Details