2022-10-29
Today I will give you a scientific introduction to the rotary melting machine. The rotary melting machine converts the current 50/60Hz electrical frequency into 20KHz or 4OKHz high-frequency electrical energy through a transistor function device and supplies it to the ultrasonic welding machine converter. The converter converts electrical energy into mechanical vibration energy for ultrasonic wave, and the pressure regulating device is responsible for transmitting the transformed mechanical energy to the welding head of ultrasonic welding machine.
The rotary melting machine belongs to a kind of hot-melt machine. The hot-melt machine entered the Chinese market in the mid-1980s, and the Chinese machinery manufacturers made this kind of equipment in the 1990s At first, the hot-melt machine was only used in small industries such as cosmetics. Later, the plastic and electronic industries gradually began to use the hot-melt machine. Therefore, in Chinese Mainland, Eastern European countries, and the Middle East countries, industrial equipment such as the hot-melt machine began to be used. However, many people included the hot-melt machine into civilian equipment, which is wrong. And the name of the hot-melt machine, the hot-melt machine, and the glue applicator is not completely correct.
Necessary parameters of rotary melting machine:
Amplitude parameter: Amplitude is a key parameter for the materials to be welded, which is equivalent to the temperature of ferrochrome. If the temperature is not reached, the welding will not be possible. If the temperature is too high, the raw materials will be burnt or the structure will be damaged, resulting in poor strength. Because the transducers selected by each company are different, the amplitudes of the output of the transducers are different. The working amplitudes of the welding heads can be corrected to meet the requirements by adapting the amplitude transformers and welding heads with different ratios. Generally, the output amplitudes of the transducers are 10-20um, while the working amplitudes are generally about 30um. The ratios of the amplitude transformers and welding heads are related to the shapes of the amplitude transformers and welding heads, front to back area ratios and other factors, such as exponential amplitude transformers Function type and step type luffing have a great influence on the transformation ratio, and the front to back area ratio is proportional to the total transformation ratio. Your company uses welding machines of different brands. The simplest way is to make them according to the scale of the working welding head, which can ensure the stability of amplitude parameters
Frequency parameter: the ultrasonic welding machine of any company has a central frequency, such as 20KHz, 40KHz, etc. The working frequency of the welding machine is mainly determined by the mechanical resonance frequency of the transducer, the booster, and the welding head. The frequency of the generator is adjusted according to the mechanical resonance frequency to achieve consistency, so that the welding head works in a resonant state. Each part is designed as a half wavelength resonant body. The generator and the mechanical resonance frequency have a resonant working range. If it is generally set to ± 0.5KHz, the welding machine can basically work normally within this range When making each welding head, we will adjust the resonant frequency. The error between the resonant frequency and the design frequency is required to be less than 0.1KHZ. For example, for the 2OKHz welding head, the frequency of our welding head will be controlled at 19.90-20.10 KHz, with an error of 5 ‰% o
Products suitable for rotary melting machine
For round plastics outside the ultrasonic range, the rotary fusion splicer is applicable to round products with high toughness that are not easy to fuse plastics, such as dehydration containers, turbine car oil filter cups, water spray joints, hot water bottle gas tanks, insulation cups, spherical toys, paint drums, insulation pans, filter cores, buoys, etc
扫一扫 添加微信