Why The Reason Of Ultrasonic Welding Machine Has No Sound Wave?

If the ultrasonic welding machine has no sound wave, the first step is to remove the mold, and then check whether there is sound wave and whether the sound wave is normal.

If there is no sound wave, see if the current pointer wiggles. If so, check if the oscillator line falls off.

If all the above inspection, or not, it is the problem of ultrasonic generator, such as the ultrasonic crystal plate is broken, or the rectifier bridge pile is broken, ultrasonic transducer is broken, the vibration plate is broken, the capacitor is broken, there will be this phenomenon. We can't tune it out without sound, so we need to replace the electronics