Working Principle of Servo Ultrasonic Welding Machine

The servo ultrasonic welding machine utilizes precise control by a servo motor, combined with ultrasonic technology. Its core function is to drive the transducer through the servo system, converting electrical energy into high-frequency (generally 15 - 40kHz) mechanical vibrations. These vibrations are amplified by an amplitude rod and then transmitted to the welding surface. The vibration causes rapid friction between the molecules on the surface of plastic and other welding materials, generating heat. When the temperature reaches the melting point of the material, under certain pressure, the materials fuse together. After cooling, a strong joint is formed. The servo motor precisely controls the frequency, amplitude, and pressure of the vibration, achieving high-precision welding.

Introduction to Servo Ultrasonic Welding Machine

Relying on the precision control advantage of the servo motor, it has the following characteristics:

• High Precision: It can accurately regulate welding parameters (such as amplitude, pressure, time), suitable for products that require high welding precision, such as mobile phone camera components, medical catheter welding.

• High Stability: The servo system makes the equipment run more stably, reducing defects caused by parameter fluctuations, improving production consistency, and suitable for large-scale continuous production.

• Flexibility: It can quickly switch welding programs to accommodate different materials (such as ABS, PC, nylon) and shapes of workpieces, adapting to multi-variety small batch production modes.

Application in the Welding Industry

• Electronics and Electrical Appliances: Welding cases for mobile phones, charger shells, earphone components, etc., to achieve seamless connection of plastic parts and ensure product appearance and sealing.

• Automobile Manufacturing: Used for welding interior parts of cars (such as dashboard plastic parts), car lights, and wire harness connectors, contributing to the lightweighting and assembly efficiency improvement of automobiles.

• Medical Devices: Welding medical plastic containers (such as syringes, infusion bag interfaces), detecting equipment plastic parts, meeting the sanitary and precision requirements of medical products.

• Packaging Industry: Plastic packaging sealing, pp plastic welding, such as assembling plastic gift boxes, food packaging sealing, enhancing the aesthetics and sealing of packaging, and promoting efficient and precise production processes in various industries.