| 摘要 |
PROBLEM TO BE SOLVED: To obtain a high quality of a coated molding by pouring a coating material at a stage of curing a surface of a molding in the degree durable against both pouring and flowing pressures of the agent, and again executing a mold clamping after the pouring under predetermined variable type mold clamping conditions, thereby preventing occurrence of a hump of a thick part of the molding. SOLUTION: The mold is closed, a melted synthetic resin molding material is injected in a cavity 6 via a nozzle 8, and a mold clamping pressure is reduced at a stage of curing the material in the degree durable against both pouring and flowing pressures of a coating agent. Then, a shut-off pin 12A of an injector 12 is operated to open its pouring inlet. A plunger regulator 13A for pouring the agent of a metering cylinder 13 is operated to pour and fill the agent between an inner wall of a fixed mold 3 and a surface of a synthetic resin molding. After the agent is poured, the inlet is again closed by the pin 12A, the mold is clamped by a mold clamping cylinder 5, the agent is diffused in the mold to cover the surface of the molding. Thus, a hump of a thick part of the molding is prevented to make a high quality. |
