A frequency automatic adjustment type printing screen stroboscopic detection device and detection method
A detection device and automatic adjustment technology, which is applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve the problems of poor image analysis accuracy and achieve the effect of accurate acquisition and high accuracy
Active Publication Date: 2021-10-22
XIAN UNIV OF TECH
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Problems solved by technology
[0005] The purpose of the present invention is to provide a frequency automatic adjustment printing screen stroboscopic detection device, which solves the problem of poor accuracy of stroboscopic frequency adjustment and image analysis in the prior art
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[0044] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0045] The structure of a kind of frequency automatic adjustment type printing screen stroboscopic detection device of the present invention is shown in 1, comprises detector 4 and support 11, and detector 4 is installed in the middle position of support 11 (as image 3 As shown), the detector 4 is also provided with a data acquisition module 3, the data acquisition module 3 is also connected with a rotational speed sensor 1, the data acquisition module 3 and the rotational speed sensor 1 are connected by a data transmission line 2, and the rotational speed sensor 1 is fixed on the bracket The two ends of 11 are located at the ends of both sides of the detector 4,
[0046] One side bottom of detector 4 is also provided with industrial CCD camera 5, and industrial CCD camera 5 is connected to industrial computer 7 by data line,
[0047] Such as...
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The invention discloses a frequency automatic adjustment printing screen stroboscopic detection device, which includes a detector, a data acquisition module is arranged on the detector, and a rotation speed sensor is connected to the data acquisition module, and the rotation speed sensor is located at both sides of the detector The central position and the data acquisition module are connected by data transmission lines. There is also an industrial CCD camera at the bottom of one side of the detector. The industrial CCD camera is connected to the industrial computer through a data line. The bottom of the detector is equipped with a strobe light array protective cover. , a number of strobe LED lights are arranged in the protective cover of the strobe light array. The specific steps of a detection method for an automatic frequency-adjusting printing screen stroboscopic detection device are as follows: calculate the frequency of the printing press, use the gray scale change curve of the collected image as a matching standard, locate and reconstruct the collected image, and compare and judge with the standard template Abnormal or not. The invention has the characteristics of complete functions, high stability and fast operation speed.
Description
technical field [0001] The invention belongs to the field of printing engineering, and relates to a frequency automatic adjustment type printing screen stroboscopic detection device, and also relates to a detection method using the frequency automatic adjustment type printing screen stroboscopic detection device. Background technique [0002] With the continuous improvement of people's requirements for the quality of printing pictures, the automation level of printing equipment is also increasing, and the printing speed and accuracy need to be guaranteed. Printing screen detection system is an essential key link in printing production and the key to ensure printing quality. [0003] The traditional manual detection method relies on experienced workers to carry out random inspection during production. Due to low efficiency and high labor intensity, it is gradually being eliminated. Traditional detection tools such as magnifying glass, ruler and other observation methods are d...
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IPC IPC(8): G01N21/898
CPCG01N21/898
Inventor 徐卓飞王瑞哲魏力健王霞吴国华
Owner XIAN UNIV OF TECH