Glass surface defect detection device

By combining a high-brightness LED light source, a high-definition industrial lens, and a high-speed image acquisition card with advanced image processing algorithms, the problem of line scan cameras relying on uniform motion is solved, enabling rapid, accurate detection and automatic identification of glass surface defects.

CN224109352UActive Publication Date: 2026-04-10DR SHENKE TESTING EQUIPMENT (KUNSHAN) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-25
Publication Date
2026-04-10

AI Technical Summary

Technical Problem

Existing methods for detecting defects on glass surfaces rely on line scan cameras, which require the object being inspected to move at a constant speed. Otherwise, the image accuracy will be affected by the scanning motion accuracy, increasing system uncertainty. Furthermore, gratings are required to record coordinates.

Method used

It employs a high-brightness, uniform LED light source, a high-definition industrial lens, a high-speed image acquisition card, and advanced image processing algorithms, combined with optical imaging components and control components, to achieve automated defect detection, including image acquisition, processing, and recognition.

Benefits of technology

It improves detection efficiency and accuracy, can display the location and type of defects in real time, alarms remind operators, and data storage modules record detection results for easy quality traceability.

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Abstract

The utility model relates to the technical field of glass production quality detection, in particular to a glass surface defect detection device which comprises a main body, and the side surface of the main body is fixedly connected with an optical imaging assembly and a control assembly; according to the utility model, the aperture adopts a high-brightness and uniform LED light source, a stable illumination condition can be provided, the definition and contrast ratio of images can be ensured, the imaging lens adopts a high-resolution industrial lens, tiny details on the glass surface can be captured, and the image acquisition module adopts a high-speed image acquisition card, so that the image acquisition efficiency is improved. High-resolution image data can be collected in real time, the defect recognition module is used for classifying and quantifying the defects on the glass surface based on the analysis result of the image processing unit, then the defects on the glass surface can be rapidly and accurately detected, and the detection efficiency and accuracy are greatly improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to glass production quality detection technical field, concretely is a glass surface defect detection device. BACKGROUND

[0002] Glass is amorphous inorganic nonmetallic material, generally is with a variety of inorganic minerals as main raw material, additionally add a small amount of auxiliary raw material and make, its main component is silica and other oxides, can be divided into quartz glass, high pressure resistant glass, ultraviolet resistant glass and explosion -proof glass etc., at present, in the process of glass production, surface defect detection is the key link of ensuring product quality.

[0003] The authorized announcement No. CN222050044U discloses a kind of glass surface defect detection device, and the patent technology is cooperated with light source module by multiple groups of line scanning camera, in the direction of transmission perpendicular to transmission assembly, to the glass to be detected is shot by row, relative to face array camera, by above setting, the acquisition speed is faster while guaranteeing each frame rate shooting quality and processing speed, by line scanning camera cooperation transmission assembly to the transportation of glass product, the preset fixed number of rows of shooting constitutes a frame image and carries out internal analysis detection, since line scanning camera shoots a row each time, dynamic condition has little influence on shooting quality, to carry out uniform detection to the whole surface of glass product, and avoid occupying a lot of computing resources;But, the glass surface defect detection method in the scheme mainly relies on person line scanning camera, and line scanning camera needs the uniform motion of the object to be detected, otherwise the image precision of acquisition can be reduced by the influence of scanning motion precision, increase the uncertainty of system.Simultaneously, in order to determine the corresponding position of each pixel point of image on the measured piece, still need to be equipped with grating and other devices to record the coordinates of each scanning line of line array, therefore, need a kind of glass surface defect detection device to improve the above problems. UTILITY MODEL CONTENT

[0004] In order to solve the glass surface defect detection method in the scheme mainly relies on person line scanning camera, and line scanning camera needs the uniform motion of the object to be detected, otherwise the image precision of acquisition can be reduced by the influence of scanning motion precision, increase the uncertainty of system.Simultaneously, in order to determine the corresponding position of each pixel point of image on the measured piece, still need to be equipped with grating and other devices to record the coordinates of each scanning line of line array, the purpose of the utility model is to provide a kind of glass surface defect detection device to solve the problems raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A kind of glass surface defect detection device, including main body, the side surface of the main body is fixedly connected with optical imaging assembly and control assembly;

[0007] The optical imaging assembly comprises a mounting seat, an aperture is mounted in the mounting seat, and an imaging lens is mounted in the aperture;

[0008] The control assembly comprises a control box, an installation plate is fixedly connected in the control box, and a power supply, an image acquisition module, an image processing unit, a defect identification module and a data storage module are fixedly connected to the side surface of the installation plate.

[0009] As a preferred scheme of the present application, the aperture adopts high-brightness and uniform LED light source, and the imaging lens adopts high-resolution industrial lens.

[0010] As a preferred scheme of the present application, the power supply, the image acquisition module and the image processing unit are electrically connected.

[0011] As a preferred scheme of the present application, the image processing unit, the defect identification module and the data storage module are electrically connected.

[0012] As a preferred scheme of the present application, the control box is fixedly connected with a display screen on the side surface, and the control box is fixedly connected with an alarm on the top.

[0013] As a preferred scheme of the present application, the control box is fixedly connected with a working display lamp on the side surface, and the image acquisition module adopts a high-speed image acquisition card.

[0014] As a preferred scheme of the present application, the main body comprises a handle, and the handle is provided with a rubber sheath at the bottom.

[0015] As a preferred scheme of the present application, the rubber sheath is provided with a switch on the side surface, and the handle is fixedly connected with a connecting barrel rod on the top.

[0016] Compared with the prior art, the present application has the following advantages:

[0017] 1、In the present application, the aperture adopts high-brightness and uniform LED light source, which can provide stable lighting conditions and ensure the definition and contrast of images, the imaging lens adopts high-resolution industrial lens, which can capture the tiny details on the surface of glass, the image acquisition module adopts high-speed image acquisition card, which can acquire high-resolution image data in real time, the defect identification module can classify and quantify the defects on the surface of glass based on the analysis results of the image processing unit, thereby the defects on the surface of glass can be quickly and accurately detected, and the detection efficiency and accuracy are greatly improved.

[0018] 2、The utility model discloses a glass surface defect detection device, which comprises a main body 1, an optical imaging assembly 2 and a control assembly 3 fixedly connected to the side surface of the main body 1. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the whole structure schematic diagram of the utility model;

[0020] Figure 2 It is the display and alarm subassembly structure schematic diagram of the utility model;

[0021] Figure 3 It is the detection control assembly structure schematic diagram of the utility model;

[0022] Figure 4 It is the optical imaging assembly structure schematic diagram of the utility model.

[0023] In the figure: 1, main body;101, handle;102, rubber sheath;103, switch;104, connecting cylinder rod;2, optical imaging assembly;201, mounting seat;202, aperture;203, imaging lens;3, control assembly;301, control box;302, alarm;303, working display lamp;304, display screen;305, mounting plate;306, power supply;307, image acquisition module;308, image processing unit;309, defect identification module;310, data storage module. DETAILED DESCRIPTION

[0024] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0025] Embodiment, please refer to Figures 1-4 The utility model provides a technical scheme:

[0026] A glass surface defect detection device, comprising a main body 1, the side surface of the main body 1 is fixedly connected with an optical imaging assembly 2 and a control assembly 3.

[0027] In this embodiment, as Figure 1 , Figure 2 ,Figure 3 and Figure 4 As shown in the figure, the optical imaging assembly 2 includes a mounting seat 201, the inside of the mounting seat 201 is mounted with an aperture 202, the inside of the aperture 202 is mounted with an imaging lens 203, the control assembly 3 includes a control box 301, the inside of the control box 301 is fixedly connected with a mounting plate 305, the side of the mounting plate 305 is fixedly connected with a power supply 306, an image acquisition module 307, an image processing unit 308, a defect identification module 309 and a data storage module 310, a high-brightness and uniform LED light source is used through the aperture 202, which can provide stable lighting conditions and ensure the clarity and contrast of the image, the imaging lens 203 uses a high-resolution industrial lens, which can capture the tiny details on the glass surface, the image acquisition module 307 uses a high-speed image acquisition card, which can acquire high-resolution image data in real time, the defect identification module 309 is used to classify and quantify the defects on the glass surface based on the analysis results of the image processing unit 308, which can quickly and accurately detect the defects on the glass surface and greatly improve the detection efficiency and accuracy.

[0028] Among them, the aperture 202 uses a high-brightness and uniform LED light source, the imaging lens 203 uses a high-resolution industrial lens, the power supply 306, the image acquisition module 307 and the image processing unit 308 are electrically connected, the image processing unit 308, the defect identification module 309 and the data storage module 310 are electrically connected, the side of the control box 301 is fixedly connected with a display screen 304, the top of the control box 301 is fixedly connected with an alarm 302, the side of the control box 301 is fixedly connected with a working display lamp 303, the image acquisition module 307 uses a high-speed image acquisition card, the display screen 304 can be used to display the image of the glass surface and the position and type of the defect in real time, the alarm 302 can emit sound or light signals when detecting defects to remind the operator, the image processing unit 308 is used to process and analyze the collected image data. This unit uses advanced image processing algorithms to automatically identify defects on the glass surface, the data storage module 310 is used to store image data and defect information during the detection process, this module can record the results of each detection, which is convenient for subsequent quality traceability and data analysis.

[0029] In this embodiment as Figure 1 , Figure 2 and Figure 4As shown, the main body 1 includes a handle 101, the bottom of the handle 101 is provided with a rubber sheath 102, the side of the rubber sheath 102 is provided with a switch 103, the top of the handle 101 is fixedly connected with a connecting barrel rod 104, the waterproofness of the rubber sheath 102 is one of important characteristics thereof, natural rubber and synthetic rubber both have dense structure, can effectively prevent the penetration of moisture, the surface of the rubber sheath 102 usually has certain texture, these textures can increase the friction with the surface of an object, prevent falling.

[0030] The utility model work flow: use the glass surface defect detection device of a kind of designed in this scheme when working, hold handle 101 with diaphragm 202 and imaging lens 203 aim at the glass surface to be measured, and utilize optical imaging system formed by diaphragm 202 and imaging lens 203 to image glass surface, diaphragm 202 provides uniform illumination, imaging lens 203 captures the image information of glass surface, image acquisition module 307 converts the image information obtained by optical imaging system into digital signal, and transmission to image processing unit 308, image processing unit 308 processes and analyzes the image data collected, and the defect of glass surface is identified by image processing algorithm, defect identification module 309 classifies and quantizes the defect identified, and the result is transmitted to display and alarm unit, display screen 304 and alarm 302 display detection result, and alarm signal is sent when detecting defect, data storage module 310 stores the image data and defect information in detection process, facilitate subsequent quality traceability and data analysis.

[0031] Although the embodiments of the utility model have been shown and described, it can be understood by those of ordinary skill in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A glass surface defect detection device comprising a main body (1), characterized in that: The side of the main body (1) is fixedly connected with an optical imaging assembly (2) and a control assembly (3); The optical imaging assembly (2) comprises a mounting seat (201), the inside of the mounting seat (201) is mounted with an aperture (202), and the inside of the aperture (202) is mounted with an imaging lens (203); The control assembly (3) comprises a control box (301), the inside of the control box (301) is fixedly connected with a mounting plate (305), the side of the mounting plate (305) is fixedly connected with a power supply (306), an image acquisition module (307), an image processing unit (308), a defect identification module (309) and a data storage module (310).

2. The glass surface defect detection apparatus according to claim 1, wherein The aperture (202) adopts a high-brightness and uniform LED light source, and the imaging lens (203) adopts an industrial lens with high resolution.

3. The glass surface defect detection apparatus according to claim 1, wherein The power supply (306), the image acquisition module (307) and the image processing unit (308) are electrically connected.

4. The glass surface defect detection apparatus according to claim 1, wherein The image processing unit (308), the defect identification module (309) and the data storage module (310) are electrically connected.

5. The glass surface defect detection apparatus according to claim 1, wherein The side of the control box (301) is fixedly connected with a display screen (304), and the top of the control box (301) is fixedly connected with an alarm (302).

6. The glass surface defect detection apparatus of claim 1, wherein The side of the control box (301) is fixedly connected with a working display lamp (303), and the image acquisition module (307) adopts a high-speed image acquisition card.

7. The apparatus for detecting defects on a glass surface according to claim 1, wherein The main body (1) comprises a handle (101), and the bottom of the handle (101) is provided with a rubber sheath (102).

8. The apparatus for detecting defects on a glass surface according to claim 7, wherein The side of the rubber sheath (102) is provided with a switch (103), and the top of the handle (101) is fixedly connected with a connecting barrel rod (104).