| 摘要 |
PURPOSE:To prevent defect of filling of resin without making a device to a large size by primarily molding a molded form and thereafter forming an after-mixing part by both the primary molded form in a mold and this mold before a secondary molding is performed. CONSTITUTION:A passage 22 is formed between a primary molded form 4 and a top force 5 by relatively separating a bottom force 6 from the top force 5 e.g. by (l) to perform secondary molding. Moreover the cross-sectional area of a passage between an inclined face 12 and an inclined face 8 is made smaller than the cross-sectional area of a passage forming a spread part 10 between the rear face of the top force 5 and the bottom force 6. An after-mixing part 20 is formed by cooperation of the primary molded form 4 in a mold 1 and this mold. When a second filling resin 21 is introduced into an introduction part 16 and reaches the spread part 10, the flow of this filling resin 21 is divided to both sides of the projection 17 of the primary molded form 4 by this projection 17. The respectively divided flows are passed through the passage between the inclined face 12 and the inclined face 18 of the projection 17. Then both flows are raised toward the interval between the bottom face of a groove part 11 and the top face of the projection 17. The divided flows of the filling resin 21 are allowed to collide and mixed with each other. Therefore the reaction thereof is smoothly advanced. |
