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Case Studies

Feminine Care Product Counting System

by Joe Gugliotti - VAIA Technologies LLC

Automated Inspection System Overview

VAIA Technologies has designed and integrated an Automated Inspection System  for a major feminine care manufacturer to inspect stacks of feminine pads for the correct pad count before they are packaged into bags. The Automated Inspection System was integrated with a 3rd party packaging system.

The client had been using a check-weighing device to count a set of pads. Unfortunately, the weight of an individual pad can fluctuate enough such that a package of pads could still contain more or less than the desired count, despite being within an acceptable weight range.

The ideal location in which to inspect the pad count is in the bagger itself, inspecting the stack count just prior to the pads being pushed into a bag. The primary goal of the Automated Inspection System is quality assurance (correct count in the bag).

Generating the Proper Inspection Image

Using a proprietary inspection algorithm, a generated line of light is applied to the compressed stack of pads. Two cameras provide 1) an operator view of the inspection area, aiding in a visual overview, useful for overall setup and monitoring and 2) the image used by the machine vision system and proprietary inspection algorithm to analyze the deformations in the projected light to determine the pad count, ensuring that the count is monitored for every bag.

Since the bag loading process cannot be interrupted, the VAIA and client systems work together to provide the pad count and track each filled bag as it moves along the conveyor, ejecting bags that were detected as initially having the wrong pad count before these bags make it to the case packer and are shipped to the consumer.

Please Contact VAIA Technologies for a PDF version of this case study, including images. 

 

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