Actual repair case: How to quickly solve common accessory faults of Hanwha surface mount Technology (SMT) machines

On the SMT production line, Hanwha's surface mount technology (SMT) placement machines are quite familiar. It is stable in performance and high in efficiency, but even the best machine will have its moments of "throwing a tantrum". Today, let's not talk about big theories. Instead, let's get straight to the point of practical application - share a real repair case and, by the way, discuss how to quickly fix common parts malfunctions.

Just last week, the Hanwha SM482 surface mount technology (SMT) placement machine on our factory line suddenly got stuck. The operator said, "The suction nozzle can't pick up the material" and "the placement accuracy has decreased." The machine kept making alarms, and the entire production line almost collapsed. Doesn't it sound tricky? Don't worry. Let's break it down step by step to see how it's handled.

Early that morning, operator Xiao Zhang came to me with a helpless look on his face and said, "Brother, this surface mount technology (SMT) machine is no good again. The suction nozzle keeps dropping materials and the placement is not accurate at all."

I went over to take a look and indeed there was quite a problem. Halfway through the operation of the surface mount technology (SMT) placement machine, frequent problems such as failed material suction, material loss, and misaligned component placement occurred.

The first impression is that there is something wrong with the suction nozzle. But do you know that behind the problem with the suction nozzle of the surface mount technology (SMT) machine, there might actually be several reasons hidden, such as a problem with the vacuum system? Didn't deliver the Feida properly? Is the suction nozzle itself damaged? To solve the problem quickly, it is necessary to check step by step.

The first step is to remove the suction nozzle for observation. I found that the bottom of it was a bit dirty, and there were some tiny dust particles and solder paste residues in the suction holes. The suction nozzle is a clean and delicate job. Even the slightest blockage may affect the suction power.

After cleaning, I reinstalled it and did a test run. The suction power improved, but it was still not stable enough and the problem was not completely solved. Then continue the investigation.

The suction force of the suction nozzle of Hanwha's surface mount technology (SMT) machine relies on the negative pressure provided by the vacuum system. Once the negative pressure is insufficient, the suction nozzle will not hold firmly, resulting in material dropping and misalignment.

I opened the parameter page to check the real-time negative pressure data of the machine and found that it fluctuated greatly and was unstable. When checking the vacuum pump filter screen again, it was indeed found that the filter element was severely clogged and there was almost no ventilation.

After the replacement, the vacuum value returned to normal, the suction power improved significantly, and the situation of material loss was also much less.

At this point, the machine still occasionally misaligns, especially when problems keep recurring at certain positions. I took a look and found that the material of the same 8mm feeder was not delivered accurately, which caused the suction nozzle to be in the wrong position.

Feida is actually a very easily overlooked "culprit". Once it has problems, such as tape jamming, loose gears or failed springs, it will cause the feeding to be misaligned.

After adjusting the Feida, I tried running it again and it was finally fine. The entire machine resumed smooth mounting and there were almost no alarms throughout the day.

Through this actual maintenance, we found that many minor malfunctions of the surface mount technology (SMT) machine were actually caused by problems with small components. As long as you check in sequence and analyze calmly, most problems can be solved quickly.

Here are three key words for you

• Cleaning and maintenance should not be neglected: components such as the suction nozzle, filter element, and feeder, which are at the "consumable level", need to be cleaned and replaced regularly.
• Pay more attention to the data: monitor the negative pressure, the success rate of material suction, and the component mounting rate in real time. The data will tell you where the problem lies.
• Spare parts must be fully prepared: Small accessories like suction nozzles, Feida springs, and filter elements must be stocked in sufficient quantities so that they can be replaced at any time in case of any problem.

In fact, a surface mount technology (SMT) placement machine is like a person. When used frequently, it will get tired and "fall ill". But as long as you can identify the "symptoms" and find the "root cause", maintenance is not that difficult at all.

This case is just the tip of the iceberg, but it is enough to illustrate a point - your familiarity with Hanwha's surface mount technology (SMT) machines determines whether you can solve problems immediately when they arise. I hope today's content can help you avoid detours and be more composed in actual combat.

Next time you encounter the old problems of "not being able to suck or stick accurately", don't worry. Just think about the steps we talked about today. Maybe you can solve it in no time!

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