Mask defect visual detection mechanism

Abstract

The invention discloses a mask defect visual detection mechanism. The mechanism comprises a fixing support, two visual detection devices and two light source assemblies; the visual detection devices and the light source assemblies are fixed to the fixing support; a conveying channel used for conveying a to-be-detected mask is arranged between the two light source assemblies; the light source assemblies and the conveying channel form a first detection position and a second detection position; the first detection position is used for detecting the front surface of the to-be-detected mask; the second detection position is used for detecting the back surface of the to-be-detected mask; and the light source assemblies, the visual detection devices and the first detection position or the seconddetection position are coaxially arranged; and the light source assemblies are matched with the visual detection devices; and the visual detection devices are used for collecting the image of the to-be-detected mask and comparing the image with a preset mask standard to judge whether the to-be-detected mask is a good product or a defective product. According to the mask defect visual detection mechanism of the invention, the mask is automatically detected, the phenomena of missing detection and false detection are avoided, detection efficiency and mask quality are improved, and mask productioncost is reduced.

Description

technical field [0001] The invention relates to the technical field of detection, in particular to a mask defect visual detection mechanism. Background technique [0002] With the process of industrialization and urbanization, air pollution is getting worse and worse. Mask products are commonly used products for people to resist air pollution. In areas with severe smog and sandstorms in the north, masks have become an indispensable daily dependence. At present, the vast majority of masks are produced with non-woven fabrics. During the production process of non-woven masks, there will be poor welding of ear loops, uninstalled nose strips, different lengths of ear loops and nose strips, overlapping welding of masks, and The main body is stained with various defects such as black spots and oil stains from production equipment. These defects may cause the mask to not be well fixed on the user's face, and some may even affect the health of the user. [0003] Since the production...

AI Technical Summary

Problems solved by technology

At present, the vast majority of masks are produced with non-woven fabrics. During the production process of non-woven masks, there will be poor welding of ear loops, uninstalled nose strips, different lengths of ear loops and nose strips, overlapping welding of masks, and The main body is stained with various defects such as black spots and oil stains from production equipment. These defects may cause the mask to not be well fixed on the user's face, and some may even affect the user's health

[0003] Since the production of masks has been fully automated, the production requirements and quality requirements are getting higher and higher. Generally, mask manufacturers rely on human eyes to distinguish one by one, which is extremely low in efficiency and high in cost.

And most of the masks are a single color block, which is easy to cause visual fatigue to the inspectors, make the product quality hidden, and cause a lot of product rework and waste of raw materials

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