Galvanized steel sheet defective pixel detection device

Abstract

The invention discloses a galvanized steel sheet defective pixel detection device comprising a lighting device mounting frame (1) for mounting a lighting device, a shooting device mounting frame (3) for mounting a shooting device (4), and a connecting member (5); the lighting device mounting frame (1) and the shooting device mounting frame (3) are connected into a whole; the lighting device is closer to a shot target than the shooting device (4), the detection device is arranged in a galvanized steel sheet detection section and used for collecting galvanized steel sheet surface appearance images, the surface appearance images are output to a computer for image detection, and the computer outputs detection target information and position information. Compared with the prior art, optical inspection is introduced for galvanized steel sheet defective point detection, on-line full-automatic detection is convenient, rapid, accurate in judgment and efficient, the optical inspection replaces manual inspection in the field to form a new research and development trend, the finished product rate of products is increased, the production cost is reduced, and galvanized steel sheet defective point detection devices and technologies are enriched and perfected.

Description

technical field [0001] The invention belongs to the technical field of quality detection of galvanized steel sheets, and in particular relates to a detection device for dead spots of galvanized steel sheets. Background technique [0002] Galvanized steel sheets are welded steel sheets with hot-dip galvanized or electro-galvanized layers on the surface, and are generally widely used in construction, home appliances, vehicles, vessels, container manufacturing, electromechanical industries, etc. Common galvanized steel sheets can be roughly divided into ordinary electrolytic sheets and fingerprint-resistant sheets. electrolytic plate. [0003] In the automatic production process of galvanized steel sheets, due to the very large production volume, defects are inevitable. At present, conventional manual inspection, sampling inspection and other methods are not enough to meet the management and control requirements for product quality; and viewing the surface of galvanized steel ...

AI Technical Summary

Problems solved by technology

At present, conventional manual inspection, sampling inspection and other methods are not enough to meet the management and control requirements for product quality; and viewing the surface of galvanized steel sheets with the naked eye is labor-intensive, and workers are prone to fatigue, which in turn affects the accuracy of judgment It is easy to miss and falsely detect, and there are problems such as difficult control of product quality and low detection efficiency.

Although there is also automatic defect detection now, the degree of automation of the equipment is not high, the recognition rate of defects is low, and the structure of the equipment is complex and the cost is high.

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