Features of ultrasonic cutting machine
Ultrasonic cutting machine is a device that uses wave energy to cut. Its characteristic is that it does not require the cutting edge of a knife. In other words, we don't need traditional advantages. Traditionally, knives with sharp edges are used to suppress the material being cut. When the pressure is concentrated on the edge, the pressure is very high, exceeding the shear strength of the material being cut. When the molecular bonds of the material are pulled apart, it is severed. Since the material is pulled apart by strong pressure, the cutting edge of the tool should be very sharp, and the material itself should withstand greater pressure. The cutting effect of soft elastic materials is not good, and the cutting of viscous materials is more difficult.
The basic structure is ultrasonic transducer, horn, cutter (cutter head), and driving power supply. The ultrasonic drive power converts the mains electricity into high frequency and high voltage alternating current and transmits it to the ultrasonic transducer. The ultrasonic transducer is actually equivalent to an energy conversion device, which can convert the input electrical energy into mechanical energy, namely ultrasound. Its manifestation is the longitudinal reciprocating movement of the transducer. The frequency of the telescopic movement is equal to the frequency of the high frequency AC current provided by the driving power supply. The role of the horn is to fix the entire ultrasonic vibration system and amplify the output amplitude of the transducer. On the one hand, the tool (cutter head) further amplifies the amplitude and focuses on the ultrasound. On the other hand, the ultrasonic output uses a cutting edge similar to a tool to concentrate the ultrasonic energy on the cutting part of the material to be cut. Under the action of huge ultrasonic energy, the part instantly softens and melts, and its strength is greatly reduced. At this time, as long as a small cutting force is applied, the purpose of cutting materials can be achieved. Similar to traditional cutting, the basic components required are a cutting knife and a cutting board. The ultrasonic cutting machine has two basic structures.
According to the different positions of ultrasonic, we might as well divide it into ultrasonic cutting machine and ultrasonic anvil cutting machine. Ultrasonic cutting machine is a kind of cutting machine that directly loads ultrasonic energy onto the cutting machine. The cutting machine becomes a kind of cutting machine under the action of ultrasonic waves. When cutting the material, the material is mainly softened and melted by ultrasonic energy. The cutting edge of the tool only plays the role of welding seam positioning, ultrasonic energy output and material separation. This cutting method is suitable for cutting rough, thick, and long cutting boards that are difficult to shape. Ultrasonic cutting machine is suitable for: raw rubber cutting, pipe cutting, frozen meat, candy, chocolate cutting, printed circuit board, industry, jewelry industry, plastic product processing, food processing, printing industry, automobile industry, natural fiber segmentation (separable fine Fiber synthetic fiber deep excavation (multi-layer circuit cutting) thin synthetic resin including various paper and film (China) coatings (suitable for large areas) or hand-held cutting machines.