Can Lid Drying Issues and Inspection

Can Lid  Drying Issues and Inspection

I. Issues, Causes, and Solutions

1. Paint Smudging

Cause: The cap transport system in the drying chamber is not smooth or has improper gaps.

Solution: Polish with fine sandpaper or adjust the transport system in the drying chamber.

2. Bubble Formation in Sealant

Cause: The drying chamber temperature is too high.

Solution: Adjust the temperature in the drying chamber.

3. Cracking

Cause: Improper drying process.

Solution: Lower the drying temperature and extend the drying time.

II. Inspection: Use online full inspection methods to detect defects such as excess glue, splashes, breaks, bubbles, damages, deformations, contamination, incorrect coating positions, and uneven overlaps (manual inspection can also be performed). Carefully check the entire cap for scratches and confirm its orientation, as well as ensure the uniformity of the glue application.

Packaging: Label the packaging with specifications, quantities, and packaging forms, including production dates and shifts.