Tamper evident bags have become a common security measure in many food and beverage products to prevent contamination and spillage and maintain the integrity of the finished product. Tamper-resistant seals, rings and pouches ensure the quality and freshness of the product, and provide manufacturers with a degree of security. The complete tampering technology in the tamper evident bag conveys the safety and reliability of the finished product, but production errors may occur during the final sealing stage of the primary packaging, affecting the safety seal. The normal wear and tear of production machines makes it almost impossible to make 100% defect-free products, so quality control and inspection processes are essential to prevent these products from leaving the production line and entering the market.
After checking the product's fill level and placement of the lid, the vision system checks the seal to verify the integrity of the seal, and specifically verifies that tamper resistant bags and security seals are used. For bottles with safety rings, the vision system verifies that the rings have not been lifted and have been properly twisted.
A vision inspection system with pattern matching technology quickly locates and verifies the integrity of tamper-resistant seals for accurate and repeatable inspections. Detect edges of security seals and measure their height, width, relative position, and gap size, and compare them with set limits. Tamper-resistant seal dimensions that do not meet the programmed limits will be rejected.