MOLD PROTECTION APPARATUS, MOLD PROTECTION METHOD AND MOLD CLAMPING APPARATUS
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United States of America Patent
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N/A
Issued Date -
Jun 26, 2014
app pub date -
Dec 23, 2013
filing date -
Dec 25, 2012
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
According to one embodiment, a mold protection apparatus for use in an opening/closing apparatus, the movable platen being formed to be movable in a direction towards or away from a fixed platen having a fixed mold and being fixedly provided with a movable mold, the mold protection apparatus comprises a deriving means, a calculating means, and a comparing means. The deriving means configured to obtain an actual operation drive force output from the motor. The calculating means configured to calculate a theoretical operation drive force of the motor. The comparing means configured to compare a difference between the actual operation drive force derived by the deriving means and the theoretical operation drive force calculated by the calculating means with a threshold value.
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