SMT placement machines are indispensable equipment in modern electronic manufacturing. However, in actual production processes, component rejection often occurs, which not only causes material waste but also affects production efficiency. Below, Charmhigh Electromechanical will delve into the reasons for component rejection in SMT placement machines and propose corresponding countermeasures. Interested friends, let's take a look together.

Suction Nozzle Issues

Deformation, blockage, or damage to the suction nozzle can lead to insufficient air pressure, making it impossible to properly pick up components.

Countermeasure: Regularly clean and inspect the suction nozzle, promptly replace damaged suction nozzles, and ensure that the suction nozzle is in good condition.

Recognition System Issues

Poor vision, lens contamination, and improper lighting settings can all affect recognition effectiveness.

Countermeasure: Keep the recognition system surface clean, regularly adjust light intensity and grayscale, and ensure that the recognition system can accurately identify components.

Inaccurate Pick-up Position and Improper Pick-up Height

Countermeasure: Adjust the pick-up position to ensure that the pick-up is centered on the component and set an appropriate pick-up height to avoid mispositioning and improper pick-up.

Vacuum Pressure Issues

Insufficient air pressure or blocked vacuum channels can lead to failed pick-ups.

Countermeasure: Regularly inspect air pressure pipes, repair leaky air paths, and ensure stable air pressure that meets the equipment requirements.

Programming Issues

Incorrect component parameter settings in the edited program, inconsistent with the incoming material's physical dimensions, brightness, and other parameters, resulting in failed recognition and component rejection.

Countermeasure: Modify component parameters and search for the best parameter settings for the component.

Incoming Material Issues

Irregular incoming materials, such as unqualified products with oxidized pins.

Countermeasure: IQC should conduct incoming material inspections and communicate with component suppliers.

Feeder Issues

Deformed feeder position, poor feeding, damaged ratchet gears, unsecured tape holes, foreign object interference, spring aging, electrical failures, failure to pick up components or improper pick-up leading to component rejection, and damaged feeders.

Countermeasure: Adjust the feeder position, clean the feeder platform, and replace damaged components or feeders.

In summary, addressing the issue of component rejection in SMT placement machines requires multiple approaches. Through regular maintenance and inspection of equipment, strengthening incoming material inspection and communication with suppliers, optimizing program settings, and other measures, we can effectively reduce the rejection rate, improve production efficiency, and lower production costs.

Hunan Charmhigh Electromechanical is a professional manufacturer of placement machines. If you have a need to purchase SMT placement machines, please contact us, and we will provide you with efficient and professional services. If you are interested in becoming our local dealer, we will provide you with mutually beneficial agency solutions.WhatsApp : +8618100733752 / WeChat : 86 18100733752 / Skype : 86 18100733752