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Simple Troubleshooting Method for Lihan Mask Machine
Source: | Author:lihan | Publish time: 179 days ago | 139 Views | Share:
This issue brings you an article about the repair and maintenance of masks.

Usually, the electronic part of the ultrasonic mask machine is liable to malfunction, and the core of the electronic part is the ultrasonic system. Now let's extract the maintenance contents of the ultrasonic system of the nonwoven mask machine in the training course for your reference as follows:


Simple Troubleshooting Method for Lihan Mask Machine



This issue brings you an article about the repair and maintenance of masks.

Usually, the electronic part of the ultrasonic mask machine is liable to malfunction, and the core of the electronic part is the ultrasonic system. Now let's extract the maintenance contents of the ultrasonic system of the nonwoven mask machine in the training course for your reference as follows:



Status 1: Welding effect of the weldment is not ideal. Press the ultrasonic testing button of the non-woven mask machine to hear the scream.

Reason: There are some problems in assembling the ultrasonic transducer system of non-woven mask machine.



Status 2: Turn on the power switch of the non-woven mask machine, the ultrasonic power indicator light of the non-woven mask machine is not on, and there is no action.

Reason analysis: A. The power cord of non-woven mask machine is not in good contact with the power socket; B. The power fuse of non-woven mask machine is burnt out.



Situation 3: Turn on the power switch of the non-woven mask machine and you will hear a weak whistle.

Reasons: 1-2 power tubes on the ultrasonic circuit board of non-woven mask machine were burned down.



Status 4: Welding effect of non-woven mask is not ideal, but the overload indicator lamp is not on during welding, and the ultrasonic output of non-woven mask machine is weak.

Reasons: A. Ultrasound power supply transformer 24V power supply of non-woven mask machine is abnormal, relay does not move; B. Three-terminal regulator LM7824 on ultrasonic program board of non-woven mask machine is damaged.



Status 5: Turn on the power switch of the non-woven mask machine, the power indicator light is on, but no action is taken. According to the ultrasonic test button of the non-woven mask machine, there is an ultrasonic output.

Reasons: A. Five-core open circuit connecting base and frame of non-woven mask machine; B. Fault of machine program circuit board.



Status 6: The ultrasonic overload indicator of non-woven mask machine is on during welding.

Reasons: A. Fault of ultrasonic transducer system of nonwoven mask machine.



Status 7: Turn on the power switch of the non-woven mask machine. The power indicator light of the non-woven mask machine is on, but no action is taken. There is no ultrasonic output according to the ultrasonic test button of the non-woven mask machine.

Reasons: A. Check whether the emergency stop switch of the non-woven mask machine is pressed; B. The power supply of the ultrasonic power transformer 110V or 24V of the non-woven mask machine is abnormal; C. The circuit board of the machine program is faulty.



Situation 8: The non-woven mask machine has action, but no ultrasonic output is obtained by pressing the ultrasonic test button and the working button of the non-woven mask machine.

Reasons: A. Ultrasound power supply transformer of non-woven mask machine 110V power supply is abnormal; B. Ultrasound circuit motherboard 110V power supply wire of non-woven mask machine falls off.



Status 9: Press the test button, the non-woven mask works normally, but press the working button of the non-woven mask machine, the machine does not move.

Reasons: A non-woven mask machine working switch damage; B. non-woven mask machine base and frame connection of the five-core open circuit.



Status 10: When the ultrasonic testing button of non-woven mask machine is pressed, the indicated value of power load meter is more than 20% and can not be lowered by tuner.

Reasons: A. Fault of ultrasonic transducer system of non-woven mask machine; B. Burning of machine power tube.


The above content is the summary of many years'experience of Li Han's senior after-sales engineers. I would like to share it with you here. At the same time, I remind users that if there is a breakdown in the machine, it should be done according to the technical capacity of our factory. If the problem can not be solved, I will ask Li Han's technical customer service (400-830-2598) in time to get support. Don't be uncertain and self-help. Repair



Lihan Machinery, a domestic supplier of ultrasonic equipment, has been focusing on the improvement of ultrasonic technology for 20 years. Its main businesses are: ultrasonic mask equipment, ultrasonic cotton shaping equipment, ultrasonic shearing/slicing/embossing/welding equipment. Lihan Machinery 24-hour Service Hotline: 400-6393-988