| 摘要 |
PURPOSE:To make injection speed uniform and to make the injection time for a resin and the conditions of molding constant, while to improve the quality of a resin-seal body by mounting a cylinder for tuning and supplying each injection cylinder with a hydraulic fluid in parallel. CONSTITUTION:A pressure hydraulic fluid passes through a throttle valve 21 set at proper resin injection-speed, and branched and fed to the input sides of each cylinder chamber in a tuning cylinder 22, each piston 23 is operated in the same manner, and the hydraulic fluid is injected into each injection cylinder 4 in parallel from the output sides of each piston chamber. Plungers 6 are elevated, resins for sealing in chambers 3 being inserted and fixed extending over a lower surface plate 1 and a bottom force 2 are injected to the pot 9 sides, and the resin is injected. |
