| 摘要 |
PURPOSE:To mechanize the packaging process of a chicken egg. CONSTITUTION:A device 1 for detecting the crack of egg shell is provided with a transport device 4 for placing an egg 3 on two belts 2 and then carrying it, an ultrasonic generation device 8 which is moved up and down by an up/ down move drive device 9, and an ultrasonic detection device 5 for detecting the ultrasonic wave which is generated by the ultrasonic generation device 8 and is propagated through the egg 8. Therefore, when the egg 3 has a crack, the waveform detected from the propagated ultrasonic wave differs, thus detecting the crack without increasing it and hence greatly improving detection rate. This method is desirable also from the sanitary point of view since no visual detection operation is performed, thus extremely improving working efficiency. |
