Heinz prevent infant packaging formula risk with automation
At the HJ Heinz factory in Cumbria, UK, baby milk powder is manufactured and packaged ready for distribution overseas. Due to the sensitive nature of the products, accurate barcode reading is essential to ensure the correct products are identified and shipped to the correct customer.
The site was using a label verification system from another supplier where one element could only read ladder barcodes. Although a separate system was created to read the picket fence barcodes, the readers could not cope with the 97 cans per minute high-speed production. Heinz were keen to upgrade to a more reliable system which could achieve 100% read rates, eliminating any risk of packaging errors.
How automation solved Heinz's challenges
OAL installed their Autocoding system using six Cognex DataMan 302X readers, enabling at least two of the readers to read the code on the can as it rotated through 360 degrees. Importantly the system was able to handle the convex structure and reflective surface of the large cans. If incorrect barcodes or ‘no reads’ are detected, alarm beacons and display screens alert the operators who will stop the line and clear the defective product to ensure no incorrect can continues to the packaging area.
Read rates are reported as part of the standard OAL Autocoding system, allowing for easy monitoring of production performance. The system also links into the site’s Domino inkjet printers and Markam case printers to ensure the correct dates are printed on each pack, ready for shipment.
Autocoding has eliminated any risk of packaging errors; 100% read rates prevent incorrect tins being packed and print control has ensured the correct dates are applied. False line stoppages due to ‘no reads’ have been removed improving production performance.