Dot-matrix inkjet coding machine vision automatic detection system for steel plate production line

Abstract

The invention discloses a dot-matrix inkjet machine vision automatic detection system for a steel plate production line, which includes a roller table, an infrared sensor, a controller, an image acquisition unit, a speed measurement unit, and an image processing terminal. The infrared sensor is installed beside the roller table for In order to detect the arrival of the steel plate, the infrared sensor and the image acquisition unit are connected to the controller; when the steel plate is in place, the controller sends a command to the image acquisition unit to start collecting pictures and transmit the data to the local image processing The terminal completes the recognition of characters on the steel plate. The invention has the advantages of high degree of automation, high detection precision, high detection efficiency and the like.

Description

Technical field [0001] The present invention mainly relates to the field of surface character identification of steel sheets, and is specifically referred to as a steel production line dot matrix coding machine visual automatic detection system. Background technique [0002] During the actual production of steel plates, it is often necessary to print, rolled or struck some characters composed of numbers, English letters or special symbols as a unique identifier of steel sheets, for quality tracking and information. management. Among them, the dot matrix thermal spraying technology has high temperature, low cost, no contact with the workpiece and the advantages of high printing efficiency, and is suitable for the case of similar large hot-rolled steel coding and the like to focus on the code content rather than the print quality. [0003] The existing steel mill generally detects the surface of the steel plate in the surface of the steel plate, and the environment of the steel pla...

AI Technical Summary

Problems solved by technology

[0003] Existing iron and steel plants generally detect dot-matrix inkjet codes on the surface of steel plates by manual inspection, but the environment of iron and steel plants is complex, there are risk factors such as high temperature and movement, and the work efficiency of workers is low, and there are many missed and false detections, which is difficult to meet the requirements of modern industrial production. Require

At the same time, the change of the transmission speed of the assembly line, the vibration of the roller shaft, the temperature of the steel plate, the condition of the nozzle and the coating will all affect the final inkjet quality

In actual working conditions, there are often phenomena such as deformation, adhesion, loss, and blurring of the coding, which bring great difficulties to the detection and identification of the dot-matrix coding of the steel plate production line.

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