| 摘要 |
PURPOSE:To prevent abnormal load from being placed on shafts and to clamp molds well by controlling the oil quantity of plurality of hydraulic cylinders between the lower end of a movable board and the sliding plate of a machine base every time difference occurs in the parallelism between the shafts and the slide surface of the machine base. CONSTITUTION:The oil quantity of a plurality of hydraulic cylinders 15 installed between the lower end of the movable board 13 and the slide plate 16 of the machine base is controlled by the servo valve 18 on the lower side of the movable board and the tracer 20 in parallel with the shafts 14, 14 in incessant contact with the stylus 19 of the servo valve 18, every time a difference occurs the parallelism between the shafts 14, 14 and the slide surface of the machine and said difference is adjusted. |
