The principle of ultrasonic cutting is to use an ultrasonic generator to convert 50/60Hz current into 20, 30 or 40kHz electrical energy. The converted high-frequency electric energy is again converted into mechanical vibration of the same frequency through the transducer, and then the mechanical vibration is transmitted to the cutting knife through a set of amplitude modulator devices that can change the amplitude. The cutting knife transfers the received vibration energy to the cutting surface of the workpiece to be cut. In this area, the vibration energy is used to cut the rubber by activating the molecular energy of the rubber and opening the molecular chain.

The main components of an ultrasonic cutting system include ultrasonic generator, transducer/amplifier/cutter triple set and various cables.

(1) The cutting precision is high, and the rubber material is not deformed

(2) Good cut surface finish and good bonding performance

(3) Easy to apply to automated production

(4) Fast speed, high efficiency, no pollution

(5) Use a 20kHz cutter to cut the upper tread (cross-cut and longitudinal-cut methods can be used)

(1) Appropriate amplitude and feeding speed can improve cutting quality

(2) The key factors affecting the cutting knife are the angle, rubber material, shape and thickness of the knife

(3) With high power, it is more suitable for cutting the tread of luxury cars and racing cars

(4) Types of commonly used cutting knives: 200mm, 300mm, 355mm, 470mm, etc.

(5) Use a 40kHz cutting knife to cut the sidewall of the tire rubber (generally a crosscut method)

(6) The cutting speed depends on the angle and thickness of the cut tire rubber

(7) The key factors affecting the cutting knife are the angle, rubber material, shape and thickness of the knife

(8) Suitable for cutting inner liners and sidewalls of semi-steel tires, radial tires, etc.

(9) Types of commonly used cutting knives: 82.5mm, 120mm, 170mm, 190mm, etc.