| 摘要 |
PURPOSE:To enable an in-mold coat, by polymerizing or cooling and solidifying resin in a mold cavity by compressing the resin by making pressing and closing of a movable platen by a hydraulic cylinder after injection of the raw material resin within the mold cavity by a predetermined quantity. CONSTITUTION:A movable platen 1 is controlled at a predetermined position by a supporting hydraulic cylinder 7 to form a mold cavity 12 having a necessary compression stock set slightly larger than a final aimed molded article between a movable mold 3 and a stationary mold 4. When raw material resin is injected into the mold cavity 12, a shut-off valve 9 is closed, a movable platen is advanced by a main pressing cylinder 11, the mold cavity is made to fill completely with the resin by pressing the resin in the mold cavity and closure of the mold is performed further. Then molding is completed through cooling and solidification of the molten plastic resin or polymerization and curing of a thermosetting resinous compound. |
