High-speed wide board detection method

A detection method and technology for sheet metal, which are applied in measurement devices, analytical materials, optical testing flaws/defects, etc., can solve the problems of poor accuracy and reduction degree, large variation range of width and size, and small detection error requirements, and achieve accelerated speed. Processing speed, simple method, easy to use effect

Inactive Publication Date: 2017-05-24
河北省自动化研究所有限公司
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Problems solved by technology

[0002] With the development of the industry, the lumber manufacturing enterprises are also constantly updating and transforming. Among them, the automation of plate sorting is of great significance to the development of my country's lumber industry; The length, width and thickness of the board; according to my country's board standards, the board width range is 10cm-30cm, and the detection accuracy is required to be about 1mm. Due to the wide range of width and small

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  • High-speed wide board detection method

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Embodiment

[0030] refer to Figure 1-4 , the present embodiment proposes a high-speed wide plate detection method, including the following steps:

[0031] S1: Place the wide plate 2 on the high-speed conveyor belt 1, and install diffuse reflection light sources 3 on both ends of the high-speed conveyor belt 1; because the plate is in a high-speed motion state at this time, the speed of the plate is fast and the surface light cannot be constant, it is easy Due to the accuracy of plate quality evaluation due to light reflection, diffuse reflection light source 3 is used.

[0032] S2: On the plate detection line, after the wide plate 2 enters the detection process, the image acquisition module is used to collect the image of the wide plate 2; to improve the detection speed, multi-camera splicing is used for processing; a single The cameras collect the images within 1 second separately, and then process them separately. In the multi-camera continuous inspection state, use the splicing metho...

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Abstract

The invention discloses a high-speed wide board detection method. The method comprises the following steps: S1: putting wide boards on a high-speed conveyor belt, and respectively installing a diffuse reflection light source on both ends above the high-speed conveyor belt; S2: on a board detection assembly line, after the wide boards enter the detection procedure, acquiring images of the wide boards by an image acquisition module; S3: installing a coder on the high-speed conveyor belt to perform radial motion coding, and carrying out speed measurement and length measurement on the wide boards; S4: respectively carrying out surface defect detection and storage on the images acquired by the image acquisition module by using two computers, and transmitting the detection result to an image processing module to perform processing; and S5: after detecting the surface defects of the images, stitching the images. The method implements high-speed wide board surface quality detection effects with low architecture cost on production lines and high efficiency and accuracy in the aspect of detection, and is simple and convenient to use.

Description

technical field [0001] The invention relates to the technical field of plate detection, in particular to a high-speed wide plate detection method. Background technique [0002] With the development of industry, the lumber manufacturing enterprises are also constantly updating and transforming, among which the automation of sheet metal sorting is of great significance to the development of my country's material industry; in the automatic sheet material sorting, the first thing to do is to complete the automatic detection of geometric dimensions, that is, to detect the sheet metal online The length, width and thickness of the board; according to my country's board standards, the board width range is 10cm-30cm, and the detection accuracy is required to be about 1mm. Due to the wide range of width and small detection error requirements, there is still a certain degree of width detection. Technically difficult, for some plates with high requirements, the detection of defects on the...

Claims

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Application Information

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IPC IPC(8): G01N21/89
CPCG01N21/89G01N21/8851G01N2021/8854G01N2021/8887
Inventor 李建华郭文龙宫哲张晶王松姜涛许志强
Owner 河北省自动化研究所有限公司
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