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AssigneeToyo Seikan Kaisha, Ltd.
InventorsYutaka Asano, Norihisa Hirota, Jotaro Nagao
Estimating the term…
[Problem] To suppress the deviation of a synthetic resin to be fed to a metal mold and to enable the to-be-compression-molded synthetic resin to be easily molded into a shape of a pre-molded article that is to be molded. [Means for Solution] A female mold 31 includes a moving rod 34 and female mold body 33 surrounding the moving rod 34, the female mold body 33 forming a cavity 33a that is opened upward, the moving rod 34 moving up and down between a normal position and an elevated position above the normal position, and when a synthetic resin 8 is to be fallen down from the a synthetic resin cutting/holding unit 14, the moving rod 34 moves to the elevated position so that the synthetic resin 8 falls down on the upper surface of the center member.
A compression-molding apparatus comprising a female mold member having a recessed molding portion, a male mold member that moves up and down relative to said female mold member and is selectively brought to a closed position where it defines a molding space in cooperation with said female mold member and to an open position where it is positioned separated away from said female mold member, and synthetic resin material introduction means positioned between said female mold member and said male mold member when said male mold member is at said open position, said synthetic resin introduction means permitting a synthetic resin material which it is holding to fall down;
A compression-molding apparatus comprising a female mold member having a recessed molding portion which is opened upward, a male mold member arranged over said female mold member, moves up and down relative to said female mold member and is selectively brought to a closed position where it defines a molding space in cooperation with said female mold member and to an open position where it is positioned separated away from said female mold member, and synthetic resin material introduction means positioned between said female mold member and said male mold member when said male mold member is at said open position, said synthetic resin introduction means permitting a synthetic resin material which it is holding to fall down;
A compression-molding apparatus comprising an upper metal mold and a lower metal mold for compression-molding a synthetic resin material, and means for introducing the synthetic resin material, wherein the introduction means moves down in a state where the synthetic resin material is protruding downward and liberates the synthetic resin material upon pushing it onto the lower metal mold.
A compression-molding method comprising holding a synthetic resin material in a manner that the synthetic resin material protrudes downward from the lower end of introduction means, conveying the introduction means to just over a lower metal mold, moving the introduction means down to push the synthetic resin material onto the lower metal mold, and liberating the synthetic resin material from the introduction means to thereby compression-mold the synthetic resin material by the lower metal mold and the upper metal mold.
Dependencies are inferred from the claim text.