Troubleshooting And Solutions To Common Faults Of Ultrasonic Welding Machine

Ultrasonic welding machine, in the process of normal use, due to various reasons, will cause some problems. It may also be man-made or caused by the machine itself.

Ultrasonic welding machine, in the process of normal use, due to various reasons, will cause some problems. It may also be man-made or caused by the machine itself. What factors need to be paid attention to in the normal operation of the welding machine?

Fault 1: Press the welding button and the welding head will drop, but it will not rise after welding.

reason:

1. Insufficient air pressure;

2. The solenoid valve is defective;

3. Adjust the air pressure;

4. Maintenance program board;

5. The time adjustment switch is damaged.

Fault 2: The overload light is on during operation.

reason:

1. The welding head is loose;

2. Improper frequency adjustment;

3. The welding head is broken;

4. Excessive pressure;

5. The power of the machine is too small.

Fault 3: The power indicator light is off, the fan of the vibration box is weakened, the vibration cannot be generated, or the welding strength is weakened.

reason:

1. The power supply voltage is low;

2. The input transformer is damaged;

3. Poor contact of the power socket.

Fault 4: Press the welding button, and the welding head will drop immediately when it touches the workpiece and it will rise without vibrating.

reason:

1. The descending stroke has not reached the welding position;

2. Poor contact of the travel switch;

3. Poor pressure trigger system.

Fault 5: The impact of welding head rising or falling is too large.

reason:

1. The buffer adjustment is inappropriate;

2. Buffer adjustment and lock up;

3. The descending speed is set too high;

4. The cylinder has poor cushioning.

Fault 6: The air pressure, power supply, and welding head are all normal but cannot be started.

reason:

1. The emergency up button is in poor contact;

2. The program control circuit is bad;

3. The start button is damaged;

4. The solenoid valve is damaged.

Fault 7: Turn on the main power switch, and the fuse is blown.

reason:

1. Short circuit of ultrasonic power board;

2. The rectifier bridge is short-circuited;

3. The start-up current has a large impact and the fuse capacity is too small.

Fault 8: excessive ultrasonic welding.

reason:

1. The outer dimensions of the work object after melting are different;

2. There is too much damage to the surface of the work;

3. Adjust the lowest point to fine-tune the screw;

4. Replace the welding head with lower amplitude.

5. The welding time is too long to shorten.

Fault 9: The energy input to work is too little.

reason:

1. Increase the use pressure;

2. Lengthen the welding time;

3. Increase the amplitude;

4. Use models with higher power;

5. Poor resonance of the ultrasonic welding head.