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Machine vision to achieve zero rejections

Challenge

The challenge was to devise packaging machines that can make well-informed decisions by rejecting bottles with damaged labels while drastically cutting down human intervention.

Our solution

  • Adapted machine vision where a computer can inspect by employing analogue-to-digital conversion (ADC) and digital signal processing (DSP)
  • Introduced a Cognex Vision System to detect damaged labels and send signals to PLC, followed by the controller sending signals to the rejection unit
  • Displayed bottle acceptance and rejection data on HMI

The outcome

The solution helped the client:

  • Achieve zero rejections with 100% quality assurance
  • Increase bottle dispatch by 75%
  • Phenomenally reduce manual intervention for quality checks