Cutting advantages and system composition of ultrasonic fabric cutter
Ultrasonic cutting can be used for the cutting of non-woven fabrics and knitted fabrics in the weaving, finishing and copying processes. Ultrasonic cutting knife is a high-efficiency and precise cutting method, which can play a greater role in fabric cutting. The woven fabric is cut by the ultrasonic vibration blade without frayed edges. The lack of frayed edges helps reduce the number of steps in processing textiles. For fabrics that are easy to cut, ultrasonic cutting is less cost-effective. However, ultrasonic cutting is suitable for difficult-to-cut materials, and ultrasonic vibration can easily perform straight-line cutting on difficult-to-cut textile materials.
Fabric cutting
The application range of ultrasonic cutting is diversified in terms of fabrics, covering living textiles, industrial textiles, health and hygiene products, and so on. Ultrasonic cutting is very common in garment manufacturing. In garment manufacturing, the use of ultrasonic cutting technology can make the edges of the fabric without wear. Ultrasonic cutting machines are also suitable for thick fabrics or fabrics with uneven weaving or varying thicknesses. In this case, laser cutting usually results in poor edge finish. Ultrasonic cutting can ensure simple and complex shapes and notches with high accuracy. It can also realize a single-layer cutting process.
working principle
Ultrasonic fabric cutting is cut by the high frequency vibration of ultrasonic waves. When the ultrasonic generator is switched on, it will generate electromagnetic vibration of 20 to 40 kilohertz, which is converted into mechanical vibration through piezoelectric ceramics, the core component of the transducer. After the ultrasonic amplitude is amplified by the horn, this mechanical oscillation becomes effective at the cutting edge of the ultrasonic tool head. This oscillation is transmitted to the ultrasonic cutting knife and the fabric material to be cut. The high-frequency vibration of the ultrasonic cutting knife will heat the inside, fuse the area of the fabric material that needs to be cut, and cut it in time. In contrast to thermal cutting, ultrasonic uses mainly mechanical energy rather than thermal energy.
Cutting advantages：
1.High cutting efficiency
Ultrasonic cutting can greatly improve the accuracy and efficiency of fabric cutting. Work easily and avoid the laborious cutting of traditional fabric scissors. Ultrasonic vibration prevents the cut fabric from sticking to the blade, thereby reducing the downtime of the clean production system. Ultrasonic cutting can be manual, semi-automatic or fully automatic. Ultrasonic cutting knives can be customized according to cutting needs and production standards, and they can also be manually cut and installed on robotic arms or integrated equipment for production.
2.Good cutting effect
Ultrasonic fabric cutting machine does not require sharp blades or exert a lot of pressure, and will not cause fabric breakage or damage to the edges. When cutting the fabric, the blade will generate ultrasonic vibration. Ultrasonic vibration can reduce the frictional resistance between the blade and the fabric, so that the blade can cut smoothly without deformation. Ultrasonic cutting will have a fixing effect on the cut area and form a clean fabric edge.
3.Wide cutting range
The ultrasonic cutting knife can cut all kinds of textile materials made of natural fibers and synthetic fibers, including woven fabrics such as aromatic polyphthalamide fibers, carbon fibers and glass fibers, non-woven fabrics, knitted fabrics, and so on.
4.Unique cutting process
Compared with cold cutting, ultrasonic cutting can fuse the cut edges of the cut material to avoid fabric burrs. Compared with thermal cutting, ultrasonic cutting fabric avoids the problem of melt shrinkage that may occur during thermal cutting, thereby preventing the edge from being too thick. Ultrasound heats the interior of the fabric to avoid yellowing of the fabric caused by heating the surface of the fabric, and to maintain the cleanliness of the fabric.
5.Safe and pollution-free
Ultrasonic cutting is environmentally friendly. In the process of fabric cutting, the maximum temperature of the equipment is 50°C, which will not produce any smoke, dust, odor, and avoid human injury and environmental pollution. In the working process of the ultrasonic cutting knife, there is no a lot of noise. The cutting process is safe, and there will be no safety problems caused by excessive cutting speed.
System composition：
Generator
The generator converts the energy from the power grid into high-frequency and high-voltage electrical signals.
Transducer
The converter converts the electrical oscillations generated by the ultrasonic generator into mechanical sound waves. The conversion is performed by using a piezoelectric ceramic disk, which expands when a voltage is applied.
Horn
The horn is used to amplify or reduce the amplitude of the mechanical oscillation emitted by the transducer. It can mechanically adjust the linear vibration motion of the converter to the level required by the specific application to produce the best cutting performance. The horn also provides a safe, vibration-free position that can be clamped to the cutting tool.
Tool head
The tool head, that is, the blade of the ultrasonic fabric cutting knife, is the part that directly contacts the fabric to be cut, and presents the shape of the cutting knife. After the ultrasonic high frequency vibration is transmitted to the tip part, the fabric can be cut.