Packaging inspection is an important part of cigarette quality control. Because packaging defects are visible defects, they are suitable for inspection by machine vision. At present, there are common appearance detection of cigarette packets and appearance detection of strips.
The main flaws in the packet inspection are packet breakage, edge curling, clamshelling, dew-whitening, turn-wrapped, misplaced packaging, seals (offset, overlap, missing), undercutting of the bottom edge, leaking after the card, and uncolored printing.
For the inspection of the strips, it is performed after sealing the strips on the strips. The main defects are: broken packaging paper, exposed inner packaging, cellophane wrinkles, uneven surface oil seals, poor bonding, no gold wire , Gold pull the wrong teeth, damage to the strip box, insult, foreign body, the wrong package, anti-package.
The visual inspection system for the visual appearance of the bar can be installed on the centralized transport path of the bar or at the entrance of the carton sealer, or it can be integrated into the winder. It is generally composed of a light source, a trigger, an image acquisition unit, an image processing unit, a controller, and a rejection mechanism.
When the packet passes, the trigger gives a signal, and the image capture unit captures the image of the strip image, and the image processing unit recognizes the features and various forms in the image to determine whether there is a defect. When a defect is found, the culling mechanism is controlled to remove the defective packet. At present, the detection time of domestic equipment for each package can already be less than 20 milliseconds, and all the defects of the package seal can be detected, which brings great convenience to cigarette manufacturers.
Cigarette packet and packet detection
August 13 10:00:43, 2024
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