Ultrasonic method and device for indirectly measuring cavity pressure of injection molding machine
US11573146B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 19, 2019 |
| Grant date | Feb 7, 2023 |
| Priority date | — |
| Expiry date | Sep 19, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C2945/76471
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The present invention discloses a ultrasonic method for indirectly measuring a pressure of a cavity of an injection molding machine, comprising: emitting ultrasonic wave to each pull rod along an axial direction of the pull rod respectively at the same time, detecting an ultrasonic wave echo time difference of each pull rod, and obtaining an average pressure inside a cavity of the injection molding machine. By the detection method and detection device of the present invention, the pressure inside the cavity may be detected in a certain state, the pressure inside the cavity in the injection molding process may be detected in real time, and the detection process is simple and the accuracy is high.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.