System and method for automatically detecting defects of large and small edges of packaging bag

Abstract

The invention discloses a method and a system for automatically detecting defects of large and small edges of a packaging bag. The method comprises the following steps: firstly, acquiring a packaging bag static state signal for triggering and acquiring a packaging bag detection image; triggering a packaging bag detection image acquisition device through the obtained packaging bag static state signal; obtaining a packaging bag detection image through the packaging bag detection image acquisition device; and finally, obtaining the offset of the sealing edge of the packaging bag by comparing the collected packaging bag detection image with a standard image. According to the method, front-back and left-right deviation values of front and back faces (or single faces) of packaging bags on a packaging bag production line are detected through a visual camera, front-back or left-right positions of the packaging bags on the production line are adjusted through a front-back adjusting device or a left-right adjusting device according to detection results, the effect of correcting position deviation of the packaging bags on the production line is achieved, and the adjustment target is to minimize the front-back and left-right deviations of each packaging bag.

Description

technical field [0001] The invention relates to the field of packaging equipment, in particular to an automatic detection system and method for large and small side defects of packaging bags. Background technique [0002] Packaging bags can be seen everywhere in our life. The existing packaging bag production process includes printing patterns on the film to obtain the packaging bag printing film, and then placing the roll of packaging bag printing film on the bag making machine, unwinding and processing the packaging bag, In the printing process of the packaging bag, the packaging bag needs to be edge-sealed. However, in the process of processing, the width of the sealing edge on the left and right sides of the packaging bag is often different, and the phenomenon of large and small sides appears, resulting in defective packaging bags. . [0003] At present, whether the size of the edge sealing of the packaging bag meets the production requirements is usually detected manua...

AI Technical Summary

Problems solved by technology

[0002] Packaging bags can be seen everywhere in our life. The existing packaging bag production process includes printing patterns on the film to obtain the packaging bag printing film, and then placing the roll of packaging bag printing film on the bag making machine, unwinding and processing the packaging bag, In the printing process of the packaging bag, the packaging bag needs to be edge-sealed. However, in the process of processing, the width of the sealing edge on the left and right sides of the packaging bag is often different, and the phenomenon of large and small sides appears, resulting in defective packaging bags.

[0003] At present, whether the size of the edge sealing of the packaging bag meets the production requirements is usually detected manually, which is low in detection efficiency and prone to missed inspections, false inspections, etc. equipment required

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