Patent ID: 7488169
Filing Date: 2009-02-10
Classification: B29C

Abstract:
1. A method for the manufacture of a three-dimensional structure, wherein a multiplicity of needle-like dies are provided so as to be integrated with a substrate, a multiplicity of said substrates are linked together and fixed to continuously circulating conveyors, a pair of the conveyors travels opposing each other so that a pair of said substrates travel opposing each other, a resin sheet heated to a temperature equal to or higher than the deflection temperature under load is continuously inserted between said pair of continuously circulating conveyors, said pair of substrates are vertically moved with respect to said resin sheet, and needle-like protrusions are continuously formed on both sides of said resin sheet by causing said pairs of needle-like dies to thrust said resin sheet, wherein: said conveyors comprise caterpillars, said substrates are fixed to vertical pins standing on said caterpillars, and said vertical movement is carried out by guiding the substrate support pins provided on the side surface of said substrate with a grooved cam; and separation plate support pins provided on the side surface of separation plates having holes on positions corresponding to said needle-like dies protrusions on each surface of said pair of substrates are guided by a grooved cam on a track other than said substrate, and said substrates and the molded resin sheet are continuously separated by said separation plates.