Method for detecting defects of chain belts of zipper on basis of digital image processing

Abstract

The invention relates to a method for detecting the defects of chain belts of a zipper on the basis of digital image processing, belonging to a novel technology in the technical field of appearance quality inspection of zippers in the hardware industry. According to the method, a detection device consisting of a target positioning and triggering device, an image acquisition sensor, a conveyor belt driving device, a background light source device, a feed belt, a sorting device and a PC (Personal Computer) machine or an embedded control system is utilized to carry out detection; and a zipper product to be detected is fed into a feed belt platform of the detection device and is then fed to a detection region under the drive of the driving device, then the zipper product is subjected to target positioning by the target positioning and triggering device, a chain belt digital image of the zipper is acquired by the image acquisition sensor, the image is transmitted to the PC machine or the embedded control system, the target image is processed by the PC machine or the embedded control system, and whether a chain belt region of the zipper has the defects is compared and judged according to a processing result and the judgment standard. The method has the characteristics of simple detection process, high detection speed, high detection accuracy and the like.

Description

technical field [0001] The invention relates to a defect detection method for chain tapes of zippers by using digital image processing, and belongs to the new technology in the technical field of zipper appearance quality inspection in the hardware industry. Background technique [0002] Zipper products are the necessities of people's daily life. my country is the world's largest producer of zippers. After the zipper industry experienced the buffer growth of the financial crisis, the entire zipper industry has developed strongly since 2009. However, due to the production process and other reasons, defects such as broken chain belts and uneven lengths may occur during the production of zipper products, resulting in the generation of defective zippers. At present, the appearance quality of zipper products generally adopts manual methods, which are judged by a large number of production line workers through visual and subjective impressions. On the one hand, the detection eff...

AI Technical Summary

Problems solved by technology

However, the problem of detection and discrimination of incomplete, damaged and missing chain belts in the production process has not been well resolved, and the research on the defects of zipper chain belts is still in its infancy.

[0005] To sum up, the current application of digital image processing technology to complete the detection of zipper defects is still in the initial stage of exploration, and a set of reasonable and complete technical solutions for the detection of zipper chain belt defects has not yet been developed, and most of them can only be completed statically. An initial inspection of specific defects that does not meet the needs of a complete inspection of zipper chain defects

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