| 摘要 |
PURPOSE:To improve an external appearance and yield of a product due to cutting scraps without sticking punching scraps to the surface of a base, by removing the punching scraps of a gate at a point of time when the base is in a die. CONSTITUTION:Although resin is cast into a cavity 5 from a nozzle 14 through a sprue 11 and gate 31, this condition is maintained until the resin becomes a molded body by lowering the same. After the resin has become a molded body, the nozzle 14 is moved backward, following to which a sprue bushing 13 is moved backward with bouncing force of a spring 17. A punch cutter 20 punches a gate part 41 of the molded body by moving forward, the gate part 41 is punched and transferred to a scrap removing chamber 9 by entering further into a through hole part. Then after removal of punching scraps transferred following to the gate part 41 and release of a die, the molded body from which the gate part 41 is removed becomes a base 51. |
