Automated label inspection with Machine Vision

Anything can go wrong while labeling products. Labels or tags may contain incorrect, incomplete or misleading information (e.g., wrong date or batch code). They may be poorly legible, contain misspellings or incorrect graphics. Incorrect product classification can also lead to incorrect labeling. In addition, misalignment of the label also has a negative impact on the packaging.

 In short, mislabeling products can have major consequences, such as:

• Health and safety risks: Improperly labeled products can pose a serious risk to consumer health and safety. Consider cleaning products with harmful substances, foods with incorrect allergen information or medications with incorrect dosage instructions.
• Legal and financial implications: When the contents of the package do not match the label, it can lead to hefty damage claims, fines or recalls. This can result in significant financial costs.
• Image damage: One consequence of mislabeling that should not be underestimated is the loss of consumer confidence. This can result in reduced sales and reputational damage. It can take years to restore lost trust.

Many companies employ a system of interim spot checks and final checks, which may or may not be performed by humans. While better than no control, this system is far from reliable. For example, the actual contents of a package may differ from the information on it. Thus, often only the bar code and/or labeling is checked.

EKB has developed an automated in-line inspection system that uses high-speed cameras to check product labels. Intelligent links between the various control layers such as MES and ERP ensure that the data is fed back and processed immediately. If an error is detected, immediate action can be taken.

Highlights of the system

• Automated 100% real-time in-line monitoring of products
• Greater insight into production by linking ERP, MES and machine/line control
• Enhanced production reporting through your MES system
• Improved tracking & tracing of products
• Suitable for all types of packaging (shape, material)
• Capable of high production speeds (up to hundreds per minute)
• Provides ability to perform product changeover in phases
• Quickly and easily integrated into existing production line (also in sections)
• Produce more efficiently
• Paperless production line
• Less reliance on people on the line