Color Sensor Solution | Detecting Missing Tape on Lithium Battery Separator in Foshan Factory

Project Background

In a Foshan lithium battery separator machine, there is a tape-applying step; missed tape causes defects, so the equipment must detect whether tape is applied to the sheet.

Project Objective

Objective: Accurately and effectively detect the presence of tape.

Challenges: Many tape types and often transparent, making them similar to the background after application.

Solution

Atonm provided the customer with a CL1 Color Sensor. During intermittent sheet motion and sheet vibration, this product is not affected by target position changes and supports color mode and color+intensity mode. Whether tape is on the tab or other positions, a suitable detection mode can be selected.

The tape may be applied to tabs made of reflective metal. Using the sensor's color mode avoids false detections caused by high reflection. Two-point learning allows comparison samples to reduce false positives and improve accuracy. We chose the CL1 Color Sensor. Its powerful three-color light principle can recognize thousands of colors and perform well on micro color differences. Paired with F-RP080S coaxial fiber, emission and reception are improved.