SMT placement machine nozzle engineer explained what are the reasons why electronic components cannot be sucked up?

As we all know, the suction nozzle is an indispensable part of the placement machine, and it is the key part of the sucked component to paste and put the action. However, during the use of the placement machine, sometimes it is inevitable that the suction nozzle of the placement machine cannot absorb components. So what is the reason why the suction nozzle of the placement machine cannot absorb the components?

Common reasons why the nozzle of the placement machine cannot absorb components:

1. Wear and tear of the suction nozzle: due to the wear and tear of the suction nozzle of the placement machine, the suction nozzle is deformed, blocked, or damaged, resulting in insufficient air pressure, which makes it impossible to absorb components.

2. Insufficient vacuum negative pressure: When the suction nozzle of the placement machine picks up the component, a certain negative pressure is generated at the suction nozzle, and the component is adsorbed on the suction nozzle. The negative pressure detection method is generally used to determine whether the suction nozzle picks up the component. Insufficient vacuum pressure will not provide enough suction to suck the components.

3. The influence of the feeder: poor feeding of the feeder causes deformation, rust damage, etc. of the press belt cover, spring and other operating mechanisms, resulting in components attracting deviation, standing sheets or unable to absorb components.

Solution:

1. Pay attention to regularly check the degree of wear of the suction nozzle, and replace the severe ones.
2. In the process of using the placement machine, the vacuum negative pressure should be checked frequently, and the suction nozzle should be cleaned regularly, and also pay attention to the pollution of the vacuum filter element on each placement head. If any pollution is found to be black , It must be replaced.