Full-process inspection for abnormal placement of Hanwha surface mount technology (SMT) placement machines

In the operation of surface mount technology (SMT) machines, abnormal placement is a common issue, especially when placement problems occur on efficient and precise Hanwha SMT machines, which often leads to a significant drop in production line efficiency. As an experienced surface mount technology (SMT) machine engineer, when encountering such problems, it is necessary to investigate and solve them through a scientific process. Today, we will take you through a thorough understanding of the full-process troubleshooting method for abnormal placement of Hanwha's surface mount technology (SMT) machines, helping you respond quickly and solve problems when facing placement malfunctions.

First of all, it should be known that mounting abnormalities usually manifest in several aspects:

• Incorrect mounting: Components deviate from the set position, resulting in incorrect positioning.
• Failed to mount: The machine cannot accurately pick up the components, or the suction nozzle cannot pick up the components.
• Component detachment: After the mounting is completed, the components are not firmly attached to the pads.
• Placement position drift: After a period of use, the placement position may drift, resulting in accumulated errors.

These problems have a huge impact on the production line. Not only are materials wasted, but they may also lead to more serious malfunctions of the equipment. Therefore, when abnormal mounting is detected, a prompt investigation should be carried out.

If you find that the mounting is inaccurate or fails, you should first check the suction nozzle system. The nozzle is an important component for Hanwha's surface mount technology (SMT) placement machine to complete the placement action. When there is a problem with the nozzle system, the placement accuracy will be greatly reduced. Common suction nozzle problems include:

• Clogged suction nozzle: If the suction nozzle is not cleaned for a long time, it may become clogged. A clogged suction nozzle can lead to insufficient suction force, thus preventing the smooth suction of components.
• Wear of the suction nozzle: If the wear of the suction nozzle is severe, its suction force will weaken, making it impossible to precisely pick up components and affecting the mounting effect.

• Regularly clean the suction nozzle to prevent the accumulation of dust, solder slag and other debris.
• Check the wear of the suction nozzle. If there is any damage, replace it in time.

Insufficient suction pressure is another common problem. If the mounting fails, check the working condition of the vacuum pump. The vacuum pump is the foundation for the normal operation of the suction nozzle system. A malfunction of the vacuum pump will directly lead to poor suction from the suction nozzle, which in turn will affect the mounting of components.

• Insufficient air pressure: Check if the air source is normal and if there is any air leakage in the air pipe.
• Vacuum pump failure: Issues such as wear and blockage of the vacuum pump may lead to weakened suction force at the suction nozzle.

• Ensure that the gas source pressure meets the requirements.
• Regularly maintain the vacuum pump, check whether there are impurities or oil stains inside the pump body, and replace the filter element in time.

If there is no problem with the suction nozzle system, next check the Feida system. The Feida system serves as a "bridge" for transmitting components to the suction nozzle. Any lag or inaccuracy of the Feida will affect the precise placement of the components.

• Flying motor is stuck: Check if the flying motor is stuck or blocked, and see if there are any foreign objects affecting its operation.
• Inaccurate feeder position: If the feeder position is inaccurate, it may cause deviation in component transmission, thereby leading to inaccurate mounting.

• Regularly inspect the operation of the Feida to ensure that there are no obstacles hindering its normal operation.
• Adjust the working position of the feida to ensure its accuracy.

Hanwha's surface mount technology (SMT) placement machines accurately locate the positions of components through a visual recognition system. If there is a problem with the visual system, it may lead to inaccurate mounting positions. Common problems of the visual system include:

• Lens dirt: If there are stains on the lens, the light transmission will deteriorate, affecting image recognition.
• Unstable light source: Unstable light source or insufficient light intensity in the visual system can also lead to a decrease in recognition accuracy.
• Algorithmic issues: Problems with the algorithm of the visual system can also lead to inaccurate position judgment.

• Regularly clean the lenses of the visual system to keep them clean.
• Make sure the light source is stable and has sufficient brightness.
• Regularly calibrate the visual system to ensure the accuracy of the algorithm.

If there are no issues with the above steps, then it is necessary to check the circuit and control system. The control system of Hanwha's surface mount technology (SMT) placement machine is the brain of the entire machine. Once a malfunction occurs, the performance of the entire device will be affected.

• Circuit failure: Problems with the circuit board may cause signal transmission errors, thereby affecting the mounting action.
• Program error: There is a problem with the control system program, which may lead to inaccurate placement actions.

• Check whether the circuit board has problems such as short circuits and poor contact.
• Update the control system program to ensure the stability of the machine software.

When facing abnormal placement of Hanwha surface mount technology (SMT) machines, do not panic. By inspecting the suction nozzle system, feeder system, visual system, vacuum pump and other components one by one, the root cause of the problem can be quickly located, and then corresponding solutions can be taken. Generally speaking, most of the abnormal placement problems of Hanwha surface mount technology (SMT) machines are caused by hardware malfunctions or environmental factors. Therefore, timely maintenance and repair of the equipment can effectively prevent the occurrence of problems.

After mastering these troubleshooting skills, you will be able to deal with abnormal mounting more calmly and ensure the smooth operation of the production line. Remember, regular maintenance and timely troubleshooting are the keys to preventing mounting failures.