Principle of ultrasonic handheld spot welder
Hand-held ultrasonic welding machine, also called portable ultrasonic welding machine, hand-held ultrasonic welding machine, hand-held welding machine, portable welding machine, ultrasonic spot welding machine, riveting machine, ultrasonic spot welding machine, can be used for butt welding of thermoplastics, The welding head can also be replaced according to customer needs for riveting, spot welding, embedding, cutting and other processing processes. Compared with other traditional processes (such as gluing, ironing or screw fastening, etc.), it has high production efficiency and welding quality Good, environmentally friendly and energy-saving and other significant advantages. The handheld ultrasonic welding machine can also be used for the welding, riveting, spot welding of thermoplastic products, as well as the inlay and edge pressing process between metal parts and plastic parts. It eliminates the backward process of pasting with chemical organic melting point agents, which has energy consumption. Low, high efficiency, no deformation, no pollution, firm welding, convenient operation, etc. The handle can also be made into a handheld type. Pressure is applied to the plastic parts through the hand-held part, and the ultrasonic switch is pressed at the same time to send out ultrasonic waves for welding.
Studies have shown that the use of handheld ultrasonic welding machines for welding in the plastics industry has become increasingly common all over the world. Because the application of this technology can replace the flux, adhesive, studs or other mechanical fixing methods required in the past production, thereby improving production efficiency and reducing costs.
Advantages: small size, simple operation, fast cleaning; using modular integrated circuits, strong power output; built-in automatic protection circuit, safe use, stable and reliable work. The welding surface is firm, strong, beautiful and environmentally friendly.
The principle of hand-held ultrasonic welding machine is to convert 50/60 Hz current into 15, 20, 28 kHz electric energy through an ultrasonic generator. The converted high-frequency electric energy is again converted into mechanical motion of the same frequency through the transducer, and then the mechanical motion is transmitted to the welding head through a set of amplitude modulator devices that can change the amplitude. The welding head transfers the received vibration energy to the joint of the workpiece to be welded. In this area, the vibration energy is converted into heat energy by friction to melt the plastic. The short pressure maintained on the workpiece after the vibration stops causes the two weldments to solidify into one body in a molecular link. Generally, the welding time is less than 1 second, and the obtained welding strength is comparable to that of the body. Ultrasound can be used not only to weld metals, hard thermoplastics, but also to process fabrics and films. The handheld ultrasonic welding machine can replace different ultrasonic welding heads according to the size of the riveting point and welding requirements of the products to be welded. It is fast and convenient, and the cost is much lower than that of the special ultrasonic welding machine for automobile door panels. Meet the needs of customers in many ways
Application scope: riveting, spot welding, embossing, folder art, decoration, ribbon flower spot welding, riveting, etc. of plastic hardware
Applicable industries: electronic appliances, auto parts, clothing packaging, textile industry, environmental protection industry, medical equipment, toy industry, communication equipment and other industries
Application examples:
1. Plastic toys, water guns, aquariums, children's dolls, plastic gifts, etc.;
2. Electronic products: recording, tape cassette and core wheel, disk shell, cell phone battery board and rectifier transformer, switch socket, electronic mosquito swatter, imitation bottle cap, etc.
3. Household appliances: electronic clocks, electric blow dryers, steam iron water tanks, electric kettles, computers, etc.;
4. Stationery and daily necessities: sealed containers such as stationery boxes, aquarium rulers, folder middle seams and shells, pen holders, cosmetic box shells, toothpaste tube seals, cosmetic mirrors, vacuum flasks, lighters, seasoning bottles, etc.;
5. Automobiles and motorcycles: batteries, front corner lights, rear lights, meters, reflectors, automobile manual shield welding, automobile door panel welding, automobile front baffle welding, automobile foot pad welding, automobile bumper repair welding, etc.；
6. Applications in the sports industry: table tennis, table tennis rackets, badminton rackets, tennis rackets, golf clubs, pool tables, treadmill drum skipping rope grip steppers, treadmill accessories, jumping boxes, gymnastics mats, boxing gloves, boxing sandbags, Sanda protective gear, path sign, X display rack and other sports equipment;
7. Packaging industry: hollow board box welding, ziplock bag welding, etc.
