Working principle of ultrasonic welding machine. Each ultrasonic welding machine has a central frequency, such as 20KHz, 40khz. The working frequency of the welding machine is mainly determined by the mechanical resonance frequency of the transducer, the horn and the welding head. The frequency of the generator is adjusted according to the mechanical resonance frequency to achieve consistency, so that the welding head works in the resonant state, and each part is designed as a half wavelength resonant body. As mentioned above, because the work of ultrasonic welding machine is often in the case of high frequency vibration, so we should try to maintain a symmetrical design, in order to avoid the uneven stress and transverse vibration caused by the asymmetry of acoustic transmission, uneven vibration can lead to welding hair heat and fracture.

Ultrasonic welding amplitude is a key parameter for the materials that need to be welded, equivalent to the temperature of ferrochrome, the temperature can not reach the fusion, the temperature is too high will make the raw materials burned or lead to structural damage and strength deterioration. Select transducer is different, because every company transducer output amplitude is different, after adaptation different variable ratio of the amplitude and the welding head, to correct the work of the welding head to conform to the requirements for amplitude, usually transducer output amplitude for 10-20 microns, and amplitude, generally about 30 microns, and the amplitude change of welding head than with the amplitude and the shape of a welding head, Before and after the area ratio is related to other factors, such as the shape of the exponential version of the amplitude, the function type of the amplitude, the ladder type of the amplitude, etc., has a great influence on the variation ratio, the area ratio is proportional to the total variation ratio. Your company uses welding machines of different brands. The simplest method is to make them according to the scale of the welding head, which can ensure the stability of amplitude parameters.

Ultrasonic welding machine has the advantages of fast speed, by ultrasonic vibration will electron energy into mechanical energy, again by ultrasonic welding head to convey the energy to the plastic workpiece contact, make produce intense friction between the molecules and molecular, prompted product instant melting and combined into an organic whole, processing speed is fast, clean, beautiful, the economy, improve the product and the advantages of business cost reduction. Ultrasonic welding machine has a wide range of welding: toy industry, stationery industry, home appliances, electronics, automobile industry, food industry, communication industry, transportation industry, aerospace industry, etc., with strong commercial value.