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100% Inspection Using Camera-Based Cap Control With Artificial Intelligence

APREX inspection system checks plastic bottle caps for defects running at high speed on a production line

Sabine Terrasi
Wed, 05/05/2021 - 12:01
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Strong price pressure combined with high-quality requirements—the beverage and bottle industry faces the classic dilemma of many industries. This is also the case in the quality control department of SOLOCAP, a French manufacturer of plastic caps.

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SOLOCAP is a subsidiary of La Maison Mélan Moutet, “flavour conditioner since 1880” and manufactures all types of plastic caps for the food sector at its industrial site in Contrexéville, France. Among them is a top-class screw cap suitable for any glass or PET bottle. Thanks to a clampable lamella ring arranged around the bottle collar, it enables a simple, fast, absolutely tight, and secure seal. However, the slats must be reliably and carefully checked for cracks, tears, and twists during production. This is the only way to guarantee absolute tightness.

But reliably detecting cracks and micro-cracks on plastic caps in 40 different colors and shades running at high speed on a production line is a real challenge, and SOLOCAP's previous inspection system could not meet these high requirements.

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