PURPOSE: To provide a sandwich injection molding device capable of injecting core material, which is to be injected into skin material, into only a desired part, in a sandwich molded piece.
CONSTITUTION: A device comprises injection cylinders 11 and 21, for respectively injecting a resin material for a skin material 1 and a resin material for a core material 2, and a mold 4 having a cavity 421. The mold 4 comprises a runner 411 communicating with the injection cylinders 11, 21 and a film gate 415 provided between the runner 411 and the cavity 421. The film gate 415 is provided with a gate width control means having a shut-off plate 31 for controlling the width of the gate so as to adjust injection distributing state of the resin material for the core material.
| JP5752228 | Injection molding machine for two-material molding |
| WO/2017/104731 | LAMINATE, MANUFACTURING METHOD THEREFOR, AND ADHESIVE COMPOSITION |
| JP2017154312 | INJECTION MOLDING MACHINE |
MORIKAWA MICHIO
AOKI KIKUO
