Patent ID: 8899966

Claim:
A multilayer molding apparatus, comprising: a fixed platen mounted with a mold core; a moving platen mounted with a dummy plate on its surface facing the mold core, and movable with respect to the fixed platen in a mold opening/closing direction; a rotary platen provided between the fixed platen and the moving platen, movable with respect to the fixed platen and the moving platen in the mold opening/closing direction, rotatable about an axis extending perpendicular to the mold opening/closing direction, having at least a surface facing the mold core at a first position of rotation and a surface facing the mold core at a second position of rotation, and mounted with a first mold cavity on the surface facing the mold core at the first position of rotation and with a second mold cavity on the surface facing the mold core at the second position of rotation; a first injection unit provided on the part of the fixed platen connectably to the mold core, and configured to injection-fill a melt resin in a first cavity formed when the mold core and the first mold cavity are clamped against each other; a second injection unit provided on the part of the fixed platen connectably to the mold core, and configured to injection-fill a melt resin in a second cavity formed when the mold core and the second mold cavity are clamped against each other; a mold clamping unit configured to move the moving platen with respect to the fixed platen in the mold opening/closing direction; a rotary platen moving unit configured to move the rotary platen with respect to the fixed platen in the mold opening/closing direction; and a rotary platen coupling mechanism configured to be capable of coupling and integrating the moving platen and the rotary platen, wherein the rotary platen and the moving platen are configured to be integrally movable in the mold opening/closing direction by being coupled by the rotary platen coupling mechanism, wherein the mold clamping unit is a toggle-type mold clamping unit, and wherein the multilayer molding apparatus is configured to be capable of performing: a control for, in a state where the moving platen and the rotary platen are coupled by the rotary platen coupling mechanism, integrally moving the rotary platen and the moving platen in the mold opening/closing direction by the toggle-type clamping unit; and a control for, in a state where the moving platen and the rotary platen are not coupled by the rotary platen coupling mechanism, moving the moving platen in the mold opening/closing direction by the toggle-type mold clamping unit, and simultaneously or after moving the moving platen, moving the rotary platen in the mold opening/closing direction by the rotary platen moving unit.