| 摘要 |
PROBLEM TO BE SOLVED: To facilitate detection treatment, to reduce the cost of a control system, and to improve the promptness, sureness stability, and reliability of the detection of foreign matter. SOLUTION: Tie bars 3... are arranged between a fixed board 2c having a fixed mold Cc and a driving platen 2r having a driving mechanism R, when the foreign matter D held between a movable mold Cm and the fixed mold Cc is detected when a movable board 2m in a mold clamping device Mc in which the movable platen 2m having the movable mold Cm is fitted freely slidably to the tie bars 3... is moved in the mold closing direction, the distance L between and the fixed platen 2c and the driving platen 2r when the movable platen 2m is moved in the mold closing direction is detected, and when the distance L reaches a set value Ls or exceeds it before the movable platen 2m reaches a mold closing position X, foreign matter detection treatment associated with the detection of the foreign mater D is done.
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