The most common three major faults of ultrasonic welding machine are: abnormal ultrasonic current overload, abnormal ultrasonic heating and whistling abnormality in ultrasonic products, then Dongguan Xiaofang plastic welding machine manufacturer Xiaobian today has no hesitation, righteous words tell For the solution to the common faults of your ultrasonic plastic welding machine, please see below.
Ultrasonic plastic welding machine problem 1: ultrasonic current overload is not normal
When the generator issues an overload alarm, it should be checked as follows:
1. Ultrasonic plastic welding machine sometimes has a normal no-load test, but it can not work normally. It may be caused by internal changes in the acoustic energy components such as the welding head, resulting in poor sound energy transmission. Here is a relatively simple judgment method: Touch method. The working head or horn has a very uniform amplitude when working on the surface, and the hand feels velvety smooth. When the sound energy is not transmitted smoothly, there is a feeling of bubbles or burrs when touched by hand. Exclusion methods are used to eliminate problematic parts. The same situation can be produced when the ultrasonic plastic welding machine is not normal, because the transducer input waveform should be a smooth sine wave when normal, and can also be generated when there are spikes or abnormal waveforms on the sine wave. Phenomenon, at this time can be replaced by another pruning acoustic energy component to distinguish.
Ultrasonic plastic welding machine
2. Ultrasonic no-load test, if the working current is normal, it may be that the ultrasonic plastic welding machine is in contact with the object that should not be contacted or the parameter adjustment between the ultrasonic plastic welding machine and the welding base is faulty.
3. When the ultrasonic no-load test is not normal, first observe whether the ultrasonic mold has cracks, whether the installation is firm, then remove the welding head and then carry out the no-load test to eliminate whether there is a problem with the transducer + horn, step by step. exclude. After eliminating the possibility of failure of the transducer + horn, replace the new horn to determine.
Ultrasonic plastic welding machine problem 2: ultrasonic plastic welding machine is not normal
Ultrasonic molds have a certain amount of heat during operation, which is caused by the mechanical energy loss of the material itself and the heat conduction of the ultrasonic parts. Whether the ultrasonic mold heating is normal or not, when the load is not loaded (ie, it does not touch the workpiece), the ultrasonic wave is continuously emitted for more than half an hour, and the temperature cannot exceed 50-70 ° C. If the heat is damaged, it proves that the ultrasonic mold is damaged or the material is unqualified. Need to be replaced.
Ultrasonic problem three: the whistling of the ultrasonic product is not normal
When whistling occurs while the ultrasonic mold is working, the following reasons should be analyzed:
1. Whether the mold is in contact with objects that should not be in contact.
2. Is the mounting screw loose?
3. Does the ultrasonic plastic welding machine mold have cracks?
2. Ultrasonic no-load test, if the working current is normal, it may be that the ultrasonic plastic welding machine is in contact with the object that should not be contacted or the parameter adjustment between the ultrasonic plastic welding machine and the welding base is faulty.
3. When the ultrasonic no-load test is not normal, first observe whether the ultrasonic mold has cracks, whether the installation is firm, then remove the welding head and then carry out the no-load test to eliminate whether there is a problem with the transducer + horn, step by step. exclude. After eliminating the possibility of failure of the transducer + horn, replace the new horn to determine.
Ultrasonic plastic welding machine problem 2: ultrasonic plastic welding machine is not normal
Ultrasonic molds have a certain amount of heat during operation, which is caused by the mechanical energy loss of the material itself and the heat conduction of the ultrasonic parts. Whether the ultrasonic mold heating is normal or not, when the load is not loaded (ie, it does not touch the workpiece), the ultrasonic wave is continuously emitted for more than half an hour, and the temperature cannot exceed 50-70 ° C. If the heat is damaged, it proves that the ultrasonic mold is damaged or the material is unqualified. Need to be replaced.
Ultrasonic problem three: the whistling of the ultrasonic product is not normal
When whistling occurs while the ultrasonic mold is working, the following reasons should be analyzed:
1. Whether the mold is in contact with objects that should not be in contact.
2. Is the mounting screw loose?
3. Does the ultrasonic plastic welding machine mold have cracks?
2018-01-27
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