Solving Quality Control Issues in Packaging with Vision Sensors
Saturday, August 5, 2017
Three of the most common quality control problems in the world of high-speed packaging are missing caps, lids or open containers, misapplied labels and incorrect labels all of which can be easily resolved using vision-sensor technology of the kind provided through Rilco Industrial Controls for the SICK USA brand. Combining a machine-vision camera with onboard intelligence optimized for optical-inspection tasks, vision sensors are highly specialized quality-control tools that can be adapted for myriad applications.
Incorrect Caps, Missing Lids, and Open Containers -- If liquids are not capped properly leaks occur causing production problems and contaminating content. This most often occurs when the container is capped after being filled and can be prevented by verifying the lid’s integrity while on the production line. Vision sensors provide a simple and cost-effective solution by looking at the container’s overall size and shape and detecting any integrity failures or misfits and triggering an output to reject containers that fail.
Detect Missing or Misapplied Labels – Because clients rely on labeling for brand identity as well as product information, a missing or misapplied label is a major issue. Vision sensors can quickly and cost-effectively detect whether a label is missing or out of position using pixel counts and relative positioning tools for edge-finding, blobs and patterns. If the label is correct, it passes. If it is an incorrect label or if the label is missing, the tool sends a failing signal and the container is rejected.
Detect Wrong Labels – Products that are mislabeled are not only an irritation to the customer but can, in many cases, pose serious health risks making it an imperative to verify the integrity of each label. Similar to checking for missing or misapplied labels a vision sensor can detect if a label is incorrect, not by optical character recognition but through an easily programmed tests using advanced pattern matching tools.
Far more cost effective than traditional smart cameras, vision sensors are becoming more common. They can be specialized for applications like inspection, positioning, or code reading leading to lower costs, higher speeds, and faster setup compared to other technologies. SICK USA brand has a wide range of solutions from photoelectric sensors, safety light curtains, safety laser scanners and industrial vision systems to barcode scanners and encoders. Call us today at Rilco Industrial Controls and let our team of experts walk you through the SICK USA brand’s line of products and applications to help you find the solutions that best suit your needs.
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