Sensor designed to inspect cylindrical containers

By Ahmed ElAmin

- Last updated on GMT

A new sensor device is designed for the high-speed, non-stop
inspection of randomly oriented cylindrical containers, providing
an automated way for a company to check if its packaged products
meet quality standards.

Cognex said its OmniView tecnology allows for the automatic inspection of the entire cylindrical surface of cosmetic containers, food and drink bottles and cans or drug vials without the need for orientation or accurate positioning. "OmniView allows customers to more cost-effectively avoid mislabeling errors, comply with evolving safety standards, and ensure product quality,"​ stated Marilyn Matz, a senior vice president at the company. "OmniView's non-stop, no-spin inspection of directly-printed or labeled cylindrical containers is ideal for achieving accurate, reliable non-contact, 100-percent inspection on even the fastest-paced packaging lines." ​ OmniView uses four cameras to obtain a 360-degree view of all features on the entire surface. It can read barcodes, verify text, inspect graphics and measure features at production line speeds of up to 1,200 parts per minute, the company claimed. "Obtaining such an image without OmniView requires stopping and rotating each cylindrical object in front of a line scan camera-a complex process that is too slow for today's high-speed production lines,"​ Cognex stated. Instead, OmniView uses images from multiple area cameras positioned around the cylindrical object to instantly generate a virtual three-dimensional surface model. OmniView then creates a seamless, undistorted, "unwrapped" image of the complete surface to which optical character recognition, barcode reading, and other machine vision software tools can be applied. "Eliminating the complex and expensive requirement to mechanically spin parts in order to inspect them dramatically reduces complexity, lowers cost and significantly boosts throughput,"​ the company stated. The company claims OmniView can detect damaged products, check for date code presence, confirm package and product match, prevent packaging mix ups, identify wrong or mislabeled products, reading 1D barcodes and 2D matrix codes, verify required allergen statements, assess print quality, check for torn or missing labels, and inspect graphics.

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