Surface defect detecting device of copper-plating layer of gravure cylinder
A technology of defect detection and copper plating layer, which is applied in the direction of optical detection of defects/defects, can solve problems such as time-consuming and laborious, slow detection speed, repeatability and stability of detection results cannot be guaranteed, and achieve high efficiency and low cost , the effect of long working life
Inactive Publication Date: 2013-03-27
HANGZHOU DIANZI UNIV
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Problems solved by technology
At present, manual detection is still mainly used in our country. This detection method has the disadvantages of time-consuming, laborious and slow detection speed.
The traditional method of detecting surface defects of the gravure cylinder copper plating layer is that the operator observes with the naked eye to determine whether there are defects on the surface of the gravure cylinder copper plating layer. Obviously, this method mainly relies on the long-term experience accumulation and subjective judgment of the operator. The accuracy of the detection results Repeatability and stability cannot be guaranteed
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[0008] Such as figure 1 As shown, this embodiment includes a CCD camera 1, a surface light source 2, a copper-plated cylinder body 3, a frosted glass 4, a detection sensor box 5, and a wall-mounted air conditioner 6. The CCD camera 1 is a digital matrix CCD camera, and the surface light source 2 is a single The light-emitting diode light source board of the color infrared spectrum, the surface light source 2, the copper-plated cylinder body 3 and the CCD camera 1 are vertically and parallelly arranged in sequence from top to bottom, and the CCD camera 1 detects the light path emitted from the surface light source 2, and the surface light source 2 emits The light area of the optical path irradiated on the copper-plated drum body 3 is equal to the horizontal cross-sectional area of the copper-plated drum body 3, and coincides with the horizontal cross-sectional area of the copper-plated drum body 3; frosted glass 4 is arranged on the surface light source 2 and Between the ...
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Abstract
The invention discloses a surface defect detecting device of a copper-plating layer of a gravure cylinder. The conventional method depends on long-term experience accumulation and subjective judgment of an operator, and the repeatability and the stability of a detection result cannot be guaranteed. In the surface defect detecting device of the copper-plating layer of the gravure cylinder, an area light source, a copper-plating rotary drum body and an CCD (Charge Coupled Device) camera are sequentially and vertically arranged in parallel from top to bottom, ground glass is arranged between the area light source and the copper-plating rotary drum body, the area light source, the CCD camera and the ground glass are packaged into a detection sensor box, a wall-mounted air conditioner is further arranged in the detection sensor box, and the CCD camera is mounted on a fast-mounted adaptive frame; and an upper computer is connected with the CCD camera, a lower computer is connected with the upper computer, a warning device is connected with the lower computer, a microprocessor reset chip is connected with the area light source, and a leaded multilayer ceramic capacitor is connected with the microprocessor reset chip. According to the surface defect detecting device of the copper-plating layer of the gravure cylinder, all defects of the copper-plating rotary drum body can be detected, and images of all the defects can be saved in real time.
Description
technical field [0001] The invention relates to a surface defect detection device, in particular to a surface defect detection device for a copper plated layer of an intaglio cylinder. Background technique [0002] Surface defect detection is a major problem in the field of machine vision inspection, and it is widely used in various fields in industrial production. In gravure plate-making, nickel is plated on the steel cylinder, and then the plate-making copper layer is plated. The quality of this layer of plate-making copper layer is directly related to the printing quality. Therefore, it is necessary to carefully check the surface defects such as pinholes and cracks that may appear in the electroplated copper layer. , and corrected before plate making. At present, manual detection is still mainly used in our country. This detection method has the disadvantages of time-consuming, laborious and slow detection speed. The traditional method of detecting surface defects of th...
Claims
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IPC IPC(8): G01N21/95
Inventor 胡更生项秀阳
Owner HANGZHOU DIANZI UNIV