Glass substrate corner missing block and crack detection device

By installing a visual inspection component on the inspection table to photograph and analyze the four corners of the glass plate, the problem of untimely detection of corner defects during glass cutting was solved, the product qualification rate was improved, and the strength and stability of the glass were guaranteed.

CN223485878UActive Publication Date: 2025-10-28RAINBOW (HEFEI) LIQUID CRYSTAL GLASS CO LTD
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Patent Information

Application Number
CN202422035445.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-21
Publication Date
2025-10-28
Estimated Expiration
2034-08-21

AI Technical Summary

Technical Problem

In the prior art, it is impossible to detect corner defects in time when the glass is cut by a precision cutting machine, resulting in unqualified products flowing into subsequent processes, reducing the overall pass rate and damaging the strength and stability of the glass.

Method used

Four sets of visual inspection components are installed on the inspection table, including brackets, positioning seats, positioning blocks and visual cameras, which are used to capture and intelligently analyze the four corners of the glass plate and display them in real time on the display screen.

Benefits of technology

It achieves timely detection of missing pieces and cracks in the corners of glass plates, avoids unqualified products from flowing into subsequent processes, improves product qualification rate, and ensures the strength and stability of glass.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223485878U_ABST
Patent Text Reader

Abstract

The utility model discloses a glass substrate corner missing block and crack detection device which comprises a detection table, the surface of the detection table is covered with a conveying belt, a glass plate is installed on the surface of the conveying belt, meanwhile, four sets of corners of the glass plate are all provided with visual detection assemblies, and the four sets of visual detection assemblies are all fixedly installed on the surface of the detection table. According to the glass substrate corner missing block and crack detection device, through the four visual detection assemblies installed on the detection table, the four corners of a glass plate can be shot, the shot content can be displayed on a display screen electrically connected with a visual camera, and an operator can observe real-time image information on the display screen, so that the glass substrate corner missing block and crack detection efficiency is improved. The visual cameras above the four corners of the glass are used for photographing the corners of the glass plate to intelligently analyze the state of the corners, and meanwhile, the state of the corners is displayed through the screen, so that the situation that a large number of unqualified products obviously reduce the overall qualification rate can be avoided; and the strength and the stability of the glass may be damaged.
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Description

Technical Field

[0001] This utility model relates to the field of glass processing equipment, specifically a device for detecting corner defects and cracks in glass substrates. Background Technology

[0002] In the glass production process, the precision cutter is the most important guarantee to ensure the integrity of glass cutting. However, the cutting pressure and wear of the cutter wheel can cause abnormal scribing, especially at the corners where scribing is prone to chipping and cracking. Frequent size changes can also cause abnormal starting and ending points of the precision cutter wheel, which is one of the main causes of corner defects.

[0003] If corner defects are not detected in time when glass is cut by a precision cutting machine, glass with corner defects will not meet quality standards. A large number of such substandard products will significantly reduce the overall pass rate; the strength and stability of the glass may be compromised. Utility Model Content

[0004] The purpose of this invention is to provide a device for detecting corner defects and cracks in glass substrates, so as to solve the defects mentioned in the background art.

[0005] To achieve the above objectives, a device for detecting corner defects and cracks in glass substrates is provided, comprising a detection table, a conveyor belt covering the surface of the detection table, and a glass plate mounted on the surface of the conveyor belt. Visual inspection components are provided at each of the four corners of the glass plate, and all four visual inspection components are fixedly mounted on the surface of the detection table. Each visual inspection component includes a bracket screwed to the detection table, a positioning seat fixedly mounted on the top of the bracket, a positioning block disposed inside the positioning seat, a connecting block fixedly mounted on the bottom of the positioning block, and a visual camera fixedly mounted on the bottom of the connecting block.

[0006] Preferably, the positioning seat and the bracket are combined in an "L" shape, and the cross-section of the bracket is "I" shaped.

[0007] Preferably, a stud is fixedly installed at the bottom of the bracket, and the stud passes through the mounting hole opened on the testing platform and is fixed by screwing with a nut.

[0008] Preferably, the surface of the positioning seat has a positioning groove, and the positioning groove is adapted to the size of the positioning block, while the positioning block is fitted inside the positioning groove.

[0009] Preferably, both the positioning block and the positioning groove are dovetail-shaped structures, and the positioning block is fitted inside the positioning groove and fixed by bolts. The thickness of the positioning block is less than the depth of the positioning groove.

[0010] Preferably, the four sets of visual cameras are respectively set on the upper surface of the four corners of the visual inspection component, and the visual cameras on the upper surface of the visual inspection component are detachable.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: by installing four sets of visual inspection components on the inspection platform, the four corners of the glass plate can be photographed, and the photographed content can be displayed on a display screen electrically connected to the visual camera. By observing the real-time image information on the display screen, the operator can intelligently analyze the corner status by taking pictures of the corners of the glass plate through the visual cameras above the four corners of the glass, and display the corner status on the screen at the same time. This can avoid the situation where a large number of such unqualified products will significantly reduce the overall pass rate and the strength and stability of the glass may be damaged. Attached Figure Description

[0012] Figure 1 This is a front view schematic diagram of the structure of this utility model;

[0013] Figure 2 for Figure 1 A bottom view;

[0014] Figure 3 for Figure 1 Top view;

[0015] Figure 4 This is a schematic diagram of the visual inspection group structure.

[0016] The following are the labels in the diagram: 1. Inspection table; 2. Conveyor belt; 3. Glass plate; 4. Vision inspection component; 41. Positioning seat; 42. Positioning groove; 43. Positioning block; 44. Connecting block; 45. Vision camera; 46. Bracket; 47. Stud; 48. Nut. Detailed Implementation

[0017] Please see Figure 1-4 This utility model provides a device for detecting corner defects and cracks in glass substrates, including a detection table 1. The surface of the detection table 1 is covered by a conveyor belt 2, and a glass plate 3 is installed on the surface of the conveyor belt 2. At the same time, visual inspection components 4 are provided at the four corners of the glass plate 3, and the four visual inspection components 4 are fixedly installed on the surface of the detection table 1. The visual inspection component 4 includes a bracket 46 screwed and fixed on the detection table 1, and a positioning seat 41 is fixedly installed on the top of the bracket 46. At the same time, a positioning block 43 is provided inside the positioning seat 41, and a connecting block 44 is fixedly installed on the bottom of the positioning block 43. A visual camera 45 is fixedly installed on the bottom of the connecting block 44.

[0018] Working principle: When the glass plate 3 on the conveyor belt 2 moves to the surface of the inspection table 1, the four sets of vision inspection components 4 installed on the inspection table 1 can take pictures of the four corners of the glass plate 3. The pictures can be displayed on the display screen electrically connected to the vision camera 45. By observing the real-time image information on the display screen, the operator can intelligently analyze the corner status by taking pictures of the corners of the glass plate 3 through the vision camera 45 above the four corners of the glass. At the same time, the corner status is displayed on the screen. This can realize the detection of missing pieces and cracks at the corners of the incoming glass, and prevent products with missing corners from flowing into the subsequent process, causing breakage in the subsequent process. It can avoid the situation where a large number of such unqualified products will significantly reduce the overall pass rate and may damage the strength and stability of the glass.

[0019] In a preferred embodiment, the positioning base 41 and the bracket 46 are combined in an "L" shape, and the cross-section of the bracket 46 is "I" shaped.

[0020] The bottom of the bracket 46 is fixedly mounted with a stud 47, which passes through the mounting hole on the test bench 1 and is fixed by screwing with a nut 48.

[0021] The mounting holes on the inspection table 1 for mounting the studs 47 can be designed in the shape of an "I" to facilitate fine-tuning of the position of the vision inspection component 4 on the surface of the inspection table 1.

[0022] In a preferred embodiment, a positioning groove 42 is formed on the surface of the positioning seat 41, and the positioning groove 42 is adapted to the size of the positioning block 43, while the positioning block 43 is fitted inside the positioning groove 42.

[0023] In a preferred embodiment, both the positioning block 43 and the positioning groove 42 are dovetail-shaped structures, and the positioning block 43 is fitted inside the positioning groove 42 and fixed by bolts. The thickness of the positioning block 43 is less than the depth of the positioning groove 42.

[0024] Four sets of visual cameras 45 are respectively installed on the upper surface of the four corners of the visual inspection component 4, and the visual cameras 45 on the upper surface of the visual inspection component 4 are detachable.

Claims

1. A device for detecting corner defects and cracks in glass substrates, comprising a detection stage (1), characterized in that: The surface of the inspection table (1) is covered by a conveyor belt (2), and a glass plate (3) is installed on the surface of the conveyor belt (2). At the same time, a visual inspection component (4) is provided at each of the four corners of the glass plate (3), and the four visual inspection components (4) are fixedly installed on the surface of the inspection table (1). The visual inspection component (4) includes a bracket (46) screwed and fixed on the inspection table (1), and a positioning seat (41) is fixedly installed on the top of the bracket (46). At the same time, a positioning block (43) is provided inside the positioning seat (41), and a connecting block (44) is fixedly installed at the bottom of the positioning block (43). A visual camera (45) is fixedly installed at the bottom of the connecting block (44). The four visual cameras (45) are respectively set on the upper surface of the four corners of the visual inspection component (4), and the visual cameras (45) on the upper surface of the visual inspection component (4) are detachable.

2. The device for detecting corner defects and cracks in a glass substrate according to claim 1, characterized in that: The positioning seat (41) and the bracket (46) are combined in an "L" shape, and the cross section of the bracket (46) is "I" shaped.

3. The device for detecting corner defects and cracks in a glass substrate according to claim 2, characterized in that: The bottom of the bracket (46) is fixedly installed with a stud (47), and the stud (47) passes through the mounting hole opened on the test table (1) and is screwed and fixed by a nut (48).

4. The device for detecting corner defects and cracks in a glass substrate according to claim 1, characterized in that: The positioning seat (41) has a positioning groove (42) on its surface, and the positioning groove (42) is adapted to the size of the positioning block (43), while the positioning block (43) is fitted inside the positioning groove (42).

5. The device for detecting corner defects and cracks in a glass substrate according to claim 4, characterized in that: Both the positioning block (43) and the positioning groove (42) are dovetail-shaped structures, and the positioning block (43) is fitted inside the positioning groove (42) and fixed by bolts. The thickness of the positioning block (43) is less than the depth of the positioning groove (42).