| 摘要 |
PCT No. PCT/JP85/00624 Sec. 371 Date Jul. 8, 1986 Sec. 102(e) Date Jul. 8, 1986 PCT Filed Nov. 8, 1985 PCT Pub. No. WO86/02878 PCT Pub. Date May 22, 1986.An injection molding machine uses a servo motor (M) as a drive source of a mold clamp mechanism (2) and includes a mold protecting function. An NC control unit (4) for driving the servo motor (M) has a torque limit function, and performs torque limit when a mold is discriminated to have reached a preset mold protection start position, based on a detection output from a position detector (P). The NC control unit (4) further has a display unit (10). When a predetermined period of time elapses before the mold reaches a preset mold contact position, beginning from a point in time at which the mold reaches the preset mold protection start position, an alarm display is generated by the display unit (10).
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