Surface defect automatic detecting device for section bars

Abstract

The invention relates to a surface defect automatic detecting device for production process of a section bar rolling mill production line, which comprises a fixing device, a control device, video cameras, an image collecting computer, an information processing server, a light-emitting diode (LED) light source, a local area network, a process control network system, a spraying device, a pinch roll, a conveying roller way, stripper rubber and compressed air. The surface defect automatic detecting device for production process of the section bar rolling mill production line is characterized in that the number of the video cameras is determined according to the maximum number of the video cameras needed in the most complex surfaces of all varieties of the section bars to be detected. The surface defect automatic detecting device achieves automatic detection of surface defect of section bars (including varieties of heavy rails, H-shaped steel, joint steel, channel steel, steel angle and the like) by controlling and adjusting focal distance and angle of the video camera and the number of the video cameras. The surface defect automatic detecting device for production process of the section bar rolling mill production line is strong in adaptability, the same configuration can be applied to heavy rail processing lines and profile steel finishing lines, and accordingly software, hardware and spare parts of the device are universal, and manufacture and maintenance cost of equipment can be saved.

Description

technical field [0001] The invention belongs to an auxiliary device applied to a profile rolling mill production line, in particular to an automatic detection device for profile surface defects in the profile production process. Background technique [0002] There are two types of profiles produced by the profile rolling mill production line: heavy rail and profile steel. Shape steel also includes: H-beam, I-beam, channel steel and other varieties, with different surface shapes. Since the steel billet may produce air bubbles and inclusions during the smelting process, after being rolled by the rolling mill production line, scarring will appear on the surface of the profile; during the rolling process of the rolling mill, failures such as roll damage and shifting of the guide device may occur, which in turn causes profile Defects such as lack of meat and rolling marks on the surface, if the products with defects are not picked out in time, will cause losses to the end user a...

AI Technical Summary

Problems solved by technology

Realize multi-directional automatic detection of profile surface defects, improve labor production efficiency, and overcome the phenomenon of missed detection of profile surface defects caused by manual visual inspection in the existing production process

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