Foil Liner Single/Double Detection Solution

Project Background

In packaging, bottle cap liners are critical for sealing and safety—especially for food, pharmaceuticals and cosmetics. Correct liner count prevents leakage and contamination. A robust detection system is needed to ensure each cap has the correct number of liners.

Requirements

- Detect 0, 1 or multiple liners

- 1 liner = pass

- 0 or ≥2 liners = fail

- System must output signals and light indicators for operator handling

Solution

We designed an intelligent system combining a metal double-sheet detector and fiber sensors:

1. Fiber sensor: position detection to ensure sampling only when the bottle is in place.

2. Working logic:

   - No liner: main unit "0" indicator and abnormal light turn on to alert operator.

   - One liner: "1" indicator lights and abnormal light stays off (pass).

   - Two liners: "2" indicator lights and abnormal light also turns on for operator action.

Customer Benefits

Testing and field use proved system stability and reliability. The customer reported improved efficiency and quality control and plans to adopt the solution for future lines.

If you have similar needs, contact Atonm for technical support and solutions.