Ultrasonic food cutting

Ultrasonic food cuttingUltrasonic cutting machine is the use of wave energy for cutting a class of device, its greatest feature is not cutting edge. Or that no edge in the traditional sense. The traditional use of the cutting tool with a sharp cutting edge, pressed against the material being cut. This stress is concentrated at the edge, the pressure is very large, exceeding the shear strength of the material being cut, a combination of molecular materials was opened, it was cut off. Because the material is strong pressure to pull hard, so cutting tools should be very sharp edge, the material itself but also bear more pressure. For soft, flexible material cut ineffective, viscous material more difficult.

Ultrasonic cutting machines basically consist of an ultrasonic transducer, horn, cutter (tool head), drive power. Ultrasonic drive power to convert mains frequency high voltage alternating current, losing to the ultrasonic transducer. Ultrasonic transducer in fact equivalent to an energy conversion device which can input electrical energy into mechanical energy, i.e. ultrasound. Its manifestation is the transducer back and forth in the longitudinal telescopic movement. Telescopic movement frequency is equal to the drive power to give out high-frequency alternating current frequency. First, the role of the horn of the entire fixed ultrasonic vibration system, the second is the transducer output amplitude amplification. Cutter (tool head) on the one hand further amplified amplitude, focused ultrasound. The other is the output ultrasonic wave, using a similar edge cutting knife, the ultrasonic energy input to the material being cut concentrate cutting site. The portion under the action of ultrasonic energy huge, instant softening, melting, strength greatly decreased. In this case, as long as a small cutting force is applied, can achieve the purpose of cutting material.

Ultrasonic food cutting