The basic principle and characteristics of ultrasonic welding are as follows

The high-voltage and high-frequency electrical signal of 15KHz generated by ultrasonic generator is converted into mechanical oscillation with the same frequency through the piezoelectric inverse effect of transducer, and acts on the plastic workpiece in the form of audio longitudinal wave. The temperature transmitted to the joint increases through the friction between the workpiece surface and internal molecules. When the temperature reaches the melting point of the workpiece itself, the interface of the workpiece melts rapidly, and then the temperature rises When the vibration stops, the workpiece is cooled and shaped under certain pressure to achieve perfect welding.

4、 Main structure and component brand of the equipment:

4.1 energy exchange system: the chip transducer made in Japan and the steel horn made in Japan are adopted, with strong power, firm and wear resistance, 20% higher than the same domestic energy exchange system.

4.2 pneumatic components: famous brand large diameter cylinder Φ 63 * 80mm-20, five way solenoid valve, smooth up and down operation, good buffering effect, eliminate the impact force of welding head on the workpiece and the recoil force on the transducer, which is more conducive to welding more precise workpiece and effectively protecting piezoelectric ceramic sheet.

4.3 the machine is equipped with precise fine adjustment mechanism, the fine adjustment distance can be precise to 0.02mm, and there is instrument indication. The height of the body and the descending distance of the welding head are indicated by the scale, and the accuracy is 1.0 mm;

4.3 frame: the unique rectangular column design, higher mechanical strength, effectively avoid the phenomenon of backward when working. The frame sheet metal is all processed by laser cutting machine, CNC plate cutting and bending machine, to ensure the perfect assembly of the whole machine. The whole machine is all painted, with good adhesion, no falling off, and beautiful appearance.

4.4 motion structure: the equipment adopts Taiwan linear slide rail, with high precision (which can't be compared with traditional guide rod and linear bearing) and is firm and wear-resistant, which makes the welding head drop more smoothly and without deviation, and is more conducive to welding more precise products.

4.5 balance mechanism: the transducer assembly can rotate at will, and the transducer assembly is equipped with horizontal adjustable structure, and the worktable is equipped with adjustable structure. The two debugging structures make the debugging mold more convenient, easy to operate and easy to learn

4.6 electrical system: a full set of high-quality imported components are assembled, the power amplifier part is improved, and the amplification components are added to share the load,

Reduce the temperature rise of triode, reduce the damage rate, no program control board design, by the Japanese Omron time relay instead of mechanical time dial switch, time control is more accurate and reliable.