For some chemical fiber fabrics or blended fabrics containing some chemical fiber raw materials, since chemical fiber has the properties of thermoplastic materials, it can be sewn (welded) and processed under the action of ultrasound. It eliminates the trouble of assembling needles, threads and spools of traditional sewing machines. It can operate continuously at high speed, with high production efficiency, and improve product quality and create profits.
Working principle of ultrasonic lace sewing
When the ultrasonic generator adds power to the transducer, the transducer vibration is amplified by the two-stage amplitude of the horn and the tool head, and the ultrasonic wave is applied to the thermoplastic chemical fiber fabric (nylon, PVC, PS-PVC, PP non-woven fabric, nylon, terylene, PE fabric, etc.) and the flower wheel with a blade is under pressure. The flower wheel and the tool head are driven by the motor and mechanical transmission part to rotate the pattern of ultrasonic cutting and welding to form beautiful lace, or when two pieces of chemical fiber fabric are used, they can be welded under the action of ultrasonic waves to form wireless sewing (please note that pure cotton fabrics and pure silk fabrics cannot be welded because they do not have the properties of thermoplastic materials).
Ultrasonic lace sewing machine function
Edge cutting and trimming
The flower wheel with a blade vibrates ultrasonically under pressure, performs single-sided cutting, and performs edge melting effect, so that the edge is smooth and smooth without roughness and burrs, meeting the quality requirements, as shown in the figure:
Slit hole
The shape of the required split hole is determined by the shape of the blade on the flower wheel. The blade vibrates and cuts under the action of ultrasound and performs edge melting treatment. As shown in the figure:
Gold stamping (printing)
Using the transfer effect, transfer paper or gold aluminum paper is transferred to the fabric under the action of ultrasound, making the product more distinctive and beautiful. As shown in the figure:
Welding
Two pieces of chemical fiber fabrics or two pieces of plastic fabrics are welded together under the action of ultrasound, and the flower wheel with convex ribs rolls under pressure. It can replace wireless sewing, and the welding strength is strong. As shown in the figure:
Slitting
The flower wheel is designed with a knife edge, and then the fabric is cut into single or multiple strips. The cut edge is free of burrs. As shown in the figure:
Forming
The flower wheel requires a special design so that the fabric can be cut on the one hand and printed on the other hand under the action of ultrasound, so that the printed pattern is realistic and has color function. As shown in the figure:
Main features of ultrasonic lace sewing machine
(1) It can weld plastic films, chemical plastic sheets, synthetic fiber fabrics, and can also weld certain materials that cannot be welded by high frequency.
(2) By adjusting the flower wheels of various styles and specifications, the lace style and width can be changed, so the operation is very convenient.
(3) There is no spark or burning phenomenon when cutting and welding the lace.
(4) It can weld and cut continuous curves or straight lines, and can also perform point welding.
(5) For fabrics of different materials and thicknesses, welding can be easily performed by adjusting the pressure, speed and power of the lace machine.
Ultrasonic welding is widely used in many fields such as medical equipment, electronic appliances, printing consumables, plastics, non-woven fabrics, packaging, auto parts, etc., providing a large number of high-quality ultrasonic plastic welding equipment with strong stability and enterprises at home and abroad.
