| 摘要 |
This injection apparatus, which injects a molding material into a mold by operating an injection cylinder, and fills the mold with the molding material, is provided with actuating cylinders, a housing chamber, and a volume changing part that is capable of changing the volume of the housing chamber. The actuating cylinders each have an action chamber and a piston that is housed inside the action chamber, and supply an incompressible fluid to the injection cylinder by squeezing out the incompressible fluid inside the action chamber with the piston. The housing chamber is connected to the action chamber, and holds at least some of the incompressible fluid that flows out from the action chamber due the piston being pushed out. The volume changing part expands the volume of the housing chamber at the same time the actuating cylinder starts accelerating, at the latest, and stops the expansion of the volume when the operating speed of the piston of the actuating cylinder has reached a desired speed. |
