| 摘要 |
PROBLEM TO BE SOLVED: To automatically detect and correct an inclination of an upper mold by providing a means for detecting right and left horizontal positions of an upper mold holder, and providing a means for receiving an abnormal signal detected by the detecting means to correct a horizontal position of the holder. SOLUTION: An upper mold holder 4 has guide plates 81 , 82 , gears 101 , 102 engaged with racks 71 , 72 and pulse oscillator at its end. The oscillator detects positions of right and left side frames 11 , 12 of the holder 4 and generates pulse signals. At this time, when oscillated pulse difference exceeds a predetermined amount, it exhibits harmonizing deviation of the right and left elevating cylinders 31 , 32 for vertically moving the holder 4. An inclination correcting means of the holder 4 receives the signal and corrects the inclination. After a predetermined time is elapsed, if the deviation is still detected, an abnormal alarm is generated. |
