| 摘要 |
PURPOSE:To provide an injection molding machine which enables the taking off of moldings without providing a special driving source by arranging a mechanism adapted to actuate an arm for taking off the molding by a hydraulic pressure from a master cylinder in linkage with opening or closing the mold. CONSTITUTION:In opening the mold of an injection molding machine, as a platen 25 retreats, the rod of a master cylinder 1 is pushed through a bracket 11, a pad metal 8 and the like. An oil filled in the cylinder enters one end of a working cylinder 2 through a hydraulic hose 9. With such an arrangement, as a molding take off arm 18 is turned through the rod and a rotary actuator 17, a slide cylinder 20 advances. In the clamping thereof, the operation is reversed. As the hydraulic pressure in the cylinder 1 exceeds the specified value, the oil returns into an air hydraulic unit for automatic replenishment of oil from a relief valve to escape the pressure whereby the cylinder 1 is automatically replenished with oil. |
