Kobe Steel, Ltd.

Tatsuru Miyamoto

Eiji Takahashi

Kaname Araki

Chitaka Manabe

Shin Iwasaki

Ryo Tabuse

A resin pelletizer apparatus () is provided with: a die () that has a die surface () having a die hole () formed therein; a rotary blade () that cuts a resin extruded from the die hole () into a pellet shape in water when being rotated on the die surface () in the water; a sensor () that detects elastic waves generated by the rotary blade () during the rotation on the die surface (); and a determination unit () that monitors the output value of the sensor () and determines that an abnormality has occurred when the output value of the sensor () is outside a predetermined range (R).

Resin pelletizer apparatus and abnormality determination method for resin pelletizer apparatus

Provided is a resin pelletizer device capable of monitoring cavitation. A resin pelletizer device () includes a die () including a die surface () in which die holes () are formed, rotary blades () that rotate on the die surface () in the water, thereby cutting resin extruded from the die holes () in the water into a pellet form, a sensor () that detects an elastic wave generated during the rotation of the rotary blades () on the die surface (), and a determination unit () that monitors an output value of the sensor (), and determines that cavitation occurs when the output value of the sensor () becomes less than a predetermined threshold.

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Takasago, Japan

Tatsuru Miyamoto