Injection molding machine
AssigneeFanuc Corporation
InventorKeisuke Sugahara
Life of this patent
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Abstract
An injection molding machine includes a belt transmission mechanism (mold opening/closing mechanism, ejector mechanism, screw drive mechanism, injection mechanism) configured to transmit drive force from a driving shaft (driving pulley) to a driven shaft (driven pulley) by means of a belt. The injection molding machine includes: a cover covering part or entirety of the belt; and a sensor attached to the cover and configured to detect an abnormality of the belt.
Claims14
An injection molding machine including a belt transmission mechanism configured to transmit drive force from a driving shaft to a driven shaft by use of a belt, the injection molding machine comprising:
- a cover covering part of the belt such that one of the driving shaft and the driven shaft is exposed from the cover;
- and
- a sensor attached to the cover and configured to detect an abnormality of the belt,
- wherein the sensor is
- a displacement sensor configured to detect displacement of the cover.
An injection molding machine including a belt transmission mechanism configured to transmit drive force from a driving shaft to a driven shaft by use of a belt, the injection molding machine comprising:
- a cover covering part of the belt such that one of the driving shaft and the driven shaft is exposed from the cover;
- and
- a sensor attached to the cover and configured to detect an abnormality of the belt,
- wherein the sensor includes a displacement sensor configured to detect displacement of the cover, and
- wherein the displacement sensor is attached to an outer wall surface, wherein the displacement sensor irradiates a reference portion provided outside of the cover with a laser beam to thereby detect an amount of displacement of the cover relative to the reference portion.
Dependencies are inferred from the claim text.