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    • 9. 发明专利
    • Foam sheet manufacturing apparatus
    • JP5309517B2
    • 2013-10-09
    • JP2007251372
    • 2007-09-27
    • 凸版印刷株式会社
    • 尚 池田
    • B29C47/14B29C47/86B29K105/04B29L7/00
    • B29C47/862B29C47/864
    • PROBLEM TO BE SOLVED: To provide a T-die, with which a foamed sheet, the scattering of the internal expansion ratio of which is few, which is thicker and the expansion ratio of which is high, can be formed. SOLUTION: The T-die 1 for manufacturing the foamed sheet by a forming a thermoplastic resin includes a manifold part 2, within which the thermoplastic resin is fed, a heating part 3 having a first resin flow passage 6 flowing the thermoplastic resin therewithin and being mounted on the downstream side of the manifold part 2 and a flow passage 3C for a heating medium to heat the first resin flow passage 6 on the wall surface on the periphery of the first resin flow passage 6, plate-like torpedos 7A, 7B and 7C fixed normal to the thickness direction of the foamed sheet in the first resin flow passage 6, a cooling forming part 4 having a second resin flow passage 8 which is the forming space of the thermoplastic resin therewithin and being mounted on the downstream side of the heating part 3 and a flow passage 4C for cooling medium to cool the second resin flow passage 8 on the wall surface in the periphery of the second resin flow passage 8, and a heat insulating member 5 arranged between the heating part 3 and the cooling forming part 4. COPYRIGHT: (C)2009,JPO&INPIT