20KHz 15KHz Ultrasonic Plastic Welding Generator With Transducer & Horn For Non-woven Welding Machine

20KHz 15KHz Ultrasonic Plastic Welding Generator With Transducer & Horn For Non-woven Welding Machine

Ultrasonic welding power generator Solved the technical problem of poor linearity of the output power of the existing ultrasonic power supply, resulting in poor working stability of the ultrasonic power supply. The ultrasonic welding power generator comprises a main control unit, a first modulator, a power amplifier and a coupler; The main control unit is also used to obtain the resonant frequency of the ultrasonic component in real-time, and adjust the signal frequency of the preset signal to the same frequency as the resonant frequency based on the resonant frequency of the ultrasonic component in real-time.

The ultrasonic welding power generator adjusts the signal frequency of the preset signal to the same frequency as the resonant frequency according to the resonant frequency of the ultrasonic component in real time, and adjusts the signal frequency of the preset signal to the same frequency as the resonant frequency of the ultrasonic component when judging that the first calculated value is greater than the first preset threshold value, wherein, The first calculated value is the absolute value of the difference between the resonant frequency and the signal frequency.

The power amplifier of the ultrasonic welding power generator is a full bridge power amplifier or a half bridge power amplifier, which uses lc resonance. In this resonance mode, the frequency of the ultrasonic power source and the frequency of the ultrasonic knife handle or ultrasonic welding parts are difficult to match. In this application, the first modulator is used to provide the electric pulse after pulse width modulation, and the pulse width modulation scheme is used to enable the ultrasonic power source to work at a very wide frequency.

Type	Full-length(mm)	Joint Bolt(mm)	Frequency(KHz)	Resonance Impedance(Ω)	Capacity(pF)	Input Power (W)
PLS-HJHNQ152600	153	M20×1.5	15	15	13000	2600
PLS-HJHNQ152000	167	M20×1.5	15	10	9500	2000
PLS-HJHNQ202000	128	M18×1	20	10	11000	2000
PLS-HJHNQ30500	77	M10×1.5	30	5	5500	500
PLS-HJHNQ28200	92.1	M10×1	28	20	3000	200
PLS-HJHNQ28100	91	M8×1	28	25	2200	100
PLS-HJHNQ28250	94	1/2-20 UNF	28	20	4000	250
PLS-HJHNQ202000	128	1/2-20 UNF	20	10	20000	2000
PLS-HJHNQ201500	124	1/2-20 UNF	20	10	16000	1500
PLS-HJHNQ38100	66	M8×1.25	38	40	1200	100
PLS-HJHNQ38200	65	M8×1	38	14	3300	200