| 摘要 |
PURPOSE:To enable the miniaturization of an injection molding machine by forming into a tiebar a piston head located inside a cylinder chamber provided on a movable die plate and at the same time, forming in the tiebar the first and second flow channels feeding hydraulic oil to the right section or the left section of the chamber. CONSTITUTION:A tiebar 39 is installed between a stationary die plate 20 and an adapter plate 38 on a movable side and a die opening/closing cylinder 18 is arranged around a tiebar 39. Then a piston head located inside a chamber 19 of the die opening/closing cylinder 18 is formed into a tiebar 39 and the tiebar 39 is capable of acting as a die opening/closing piston. In addition, the first flow channel 41 and the second flow channel 42 are formed in a tiebar shape 39 at the right section or the left section of the chamber 19 for supplying hydraulic oil. Under this constitution, the machine is not complicated without exposing an oil feeder pipe. Furthermore, curvature radius need not be considered during pipe laying, so that space for piping can be reduced. |
