Ultrasonic cutting machine basic mechanism and characteristics

Ultrasonic cutting machine is a kind of equipment that uses wave energy for cutting. Its biggest feature is that cutting does not use cutting edge. Or, instead of the cutting edge in the traditional sense. Conventional cutting uses a sharp-edged tool to press against the material being cut. This pressure is concentrated at the cutting edge, and the pressure is very large, exceeding the shear strength of the material being cut. The molecular combination of the material is pulled apart and cut. Since the material is pulled hard by the strong pressure, the cutting edge of the cutting tool should be very sharp, and the material itself must withstand relatively high pressure. It is not good for soft and elastic materials, and it is more difficult for viscous materials.

The basic structure of the ultrasonic cutting machine is ultrasonic transducer, horn, cutter (horn), and drive power. The ultrasonic drive power source converts the commercial power into a high-frequency high-voltage alternating current and transmits it to the ultrasonic transducer. An ultrasonic transducer is actually equivalent to an energy conversion device that converts input electrical energy into mechanical energy, ie, ultrasonic waves. Its manifestation is that the transducer moves back and forth in the longitudinal direction. The frequency of the telescopic motion is equivalent to the frequency of the high frequency alternating current supplied by the driving power source. The role of the horn is to fix the entire ultrasonic vibration system and to amplify the output amplitude of the transducer. The cutting blade (horn) further enlarges the amplitude on the one hand and focuses the ultrasonic wave. On the other hand, the ultrasonic wave is output, and the ultrasonic energy is concentratedly input to the cutting portion of the material to be cut by using a similar cutting edge of the cutting blade. Under the action of huge ultrasonic energy, this part softens and melts instantly, and the strength is greatly reduced. At this time, as long as a small cutting force is applied, the purpose of cutting the material can be achieved. Similar to conventional cutting, the basic components required are a cutter and an anvil, and the ultrasonic cutter has two basic structures. Depending on the location of the ultrasonic application, we may wish to divide it into an Ultrasonic cutter cutting machine and an ultrasonic cutting board cutting machine

The ultrasonic cutter cutter directly loads the ultrasonic energy onto the cutter, and the cutter becomes a cutter with ultrasonic waves. When cutting the material, the material is mainly softened and melted by the ultrasonic energy, and the cutting edge of the cutter only serves as the slit positioning, the ultrasonic energy output, and the separation material. This cutting method is suitable for cutting thick, thick, long, etc. materials that are inconvenient to set the cutting board. Such as raw rubber output from the rubber mixer, pipe cutting, frozen meat, candy, chocolate cutting, printed circuit boards, or hand-held cutting machines.

The basic structure of the ultrasonic cutting board cutter is similar to that of the ultrasonic cutter cutter, except that the ultrasonic output portion is not a cutter but a standard ultrasonic flat mold. Here, the mold is equivalent to a cutting board. However, this is a cutting board that is used for ultrasonic vibration. The cutting knife can still be used in the traditional shape, but the sharpness of the cutting edge is reduced, and the life of the cutting knife is greatly extended.

In many cases, traditional cutting blades allow for great changes due to the effects of ultrasound. The most typical is that the cutter is transformed into a cylindrical wheel with a raised pattern, commonly known as a flower wheel. The raised portion corresponds to the cutting edge of the cutter and the material being cut passes between the flower wheel and the ultrasonic cutting block. This combination cuts out endless patterns and is extremely low cost and extremely efficient. This cutting method is suitable for the cutting of flaky materials, such as various trademarks, clothing lace, fabric cutting, decorative sequin cutting, natural fibers, synthetic fibers, non-woven fabrics, synthetic resins, paper, film cutting, slitting and the like.