Resin pelletizer device and cavitation monitoring method
US10160153B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 6, 2017 |
| Grant date | Dec 25, 2018 |
| Priority date | — |
| Expiry date | Jul 5, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/757
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Provided is a resin pelletizer device capable of monitoring cavitation. A resin pelletizer device (100) includes a die (6) including a die surface (61) in which die holes (63) are formed, rotary blades (21) that rotate on the die surface (61) in the water, thereby cutting resin extruded from the die holes (63) in the water into a pellet form, a sensor (150) that detects an elastic wave generated during the rotation of the rotary blades (21) on the die surface (61), and a determination unit (121) that monitors an output value of the sensor (150), and determines that cavitation occurs when the output value of the sensor (150) becomes less than a predetermined threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.