Detection system for rotary disc type glass cover plate screen printing and detection method thereof

A detection method and detection system technology, applied in measuring devices, instruments, scientific instruments, etc., can solve problems such as misjudgment of trachoma detection, and achieve the effect of reducing misjudgment, universal application value, and ensuring high resolution

Active Publication Date: 2021-07-02
SHANGHAI CHENXING ELECTRONICS SCI & TECH CO LTD
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  • Abstract
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Problems solved by technology

[0003] In order to overcome the defects existing in the prior art, a detection system and detection method for silk screen printing of the turntable glass cover are provided to solve the problem of traditional mobile phone The wireframe printing inspection of the glass cover plate has a lot of misjudgments for the detection of small defects such as blisters

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  • Detection system for rotary disc type glass cover plate screen printing and detection method thereof
  • Detection system for rotary disc type glass cover plate screen printing and detection method thereof
  • Detection system for rotary disc type glass cover plate screen printing and detection method thereof

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[0049] The application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain related inventions, rather than to limit the invention. It should also be noted that, for ease of description, only parts related to the invention are shown in the drawings.

[0050] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and embodiments.

[0051] refer to Figure 1 to Figure 13 As shown, the present invention provides a detection system for silk screen printing of a turntable glass cover, including: a camera module, a molding module 2 and a comparison module 3 .

[0052] Specifically, the camera module includes three CCD (Charge-co...

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Abstract

The invention discloses a detection system for rotary disc type glass cover plate screen printing and a detection method thereof, and the system comprises a camera module which comprises three CCD cameras; a molding module which comprises a calibration unit, a first calculation unit and a storage unit, wherein the calibration unit is connected to the three CCD cameras, the first calculation unit and the storage unit, and the first calculation unit is connected to the storage unit; and a comparison module which comprises a loading unit, a preprocessing unit, a second calculation unit, an extraction unit, a third calculation unit and a screening unit, wherein the loading unit is connected to the storage unit, the preprocessing unit is connected to the three CCD cameras, the loading unit, the second calculation unit and the extraction unit, and the third calculation unit is connected to the extraction unit and the screening unit. According to the invention, the problem that a lot of misjudgments exist in the detection of small defects such as sand holes and the like in the traditional wireframe printing detection of the mobile phone glass cover plate is solved.

Description

technical field [0001] The invention relates to the technical field of screen printing detection, in particular to a detection system and a detection method for silk screen printing of a turntable glass cover plate. Background technique [0002] For the wireframe printing inspection of the glass cover of the mobile phone, the existing technology is relatively simple to observe the obvious defects of the silk screen wireframe. Most of the inspection methods are based on the grayscale comparison of the image, and then analyze the overall integrity and smoothness of the image. This method cannot detect the fine trachoma caused by edge defects in the wireframe and the sticky dust of the screen, because the gray level change signals of these trachoma are very close to the surroundings, so there are a lot of misjudgments. Contents of the invention [0003] In order to overcome the defects existing in the prior art, a detection system and detection method for silk screen printing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/01G01N21/956
CPCG01N21/01G01N21/95607
Inventor 戴明航
Owner SHANGHAI CHENXING ELECTRONICS SCI & TECH CO LTD
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