Resin state monitor for injection molding machine, has resin degradation state calculation part calculating degradation state of resin and emitting warning signal during degradation state exceeds threshold value

摘要

The monitor has a temperature detection part for detecting the temperature of a heater. A resin moving part is provided with the heater. A resin movement detection part detects that the movement of resin. A resin degradation state calculation part calculates the exponential value of the detected temperature in time when the movement of resin is not performed. The resin degradation state calculation part calculates the degradation state of resin and emits the warning signal during degradation state exceeds the threshold value.