Glass defect detection equipment

By designing a multi-station, multi-view glass defect detection device and using a combination of tilting and vertical vision cameras, the problem of incomplete detection by existing equipment has been solved, enabling comprehensive and efficient detection of glass.

CN224231654UActive Publication Date: 2026-05-12SUZHOU RSOPTO OPTOELECTRONICS TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SUZHOU RSOPTO OPTOELECTRONICS TECH CO LTD
Filing Date
2025-06-03
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Existing glass defect detection equipment has a single detection location and cannot perform comprehensive defect detection, especially for different types of glass such as float glass and tempered glass, where the detection is not accurate enough.

Method used

A glass defect detection device was designed, which adopts a combination of multiple stations and multiple detection angles, including a first detection unit that is tilted, a second detection unit that is tilted in the relative width direction, and a third detection unit that is vertical in height, and performs all-round detection through a vision camera.

Benefits of technology

It enables comprehensive inspection of glass, avoids missed defects, improves inspection efficiency, and can adapt to different types of glass.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides glass defect detection equipment. The glass defect detection equipment comprises a rack, a conveying frame, a first detection frame, a second detection frame and a third detection frame, the first detection frame comprises a first mounting frame and a plurality of first detection units distributed in the length direction of the first mounting frame, and the first detection units are obliquely arranged relative to the conveying direction of the conveying frame; the second detection frame comprises a second mounting frame, at least one first moving frame arranged in a sliding mode and a second detection unit, and the second detection unit is obliquely arranged relative to the width direction of the conveying frame; the third detection frame comprises a third mounting frame, at least one second moving frame arranged in a sliding mode and a third detection unit fixedly arranged on the second moving frame, the third detection unit is perpendicularly arranged relative to the plane where the conveying frame is located, and the glass is detected in an omnibearing mode through the combination of multiple stations and multiple detection visual angles.
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Description

Technical Field

[0001] This application relates to the field of glass defect detection, and more specifically, to a glass defect detection device. Background Technology

[0002] Glass defects include bubbles, scratches, impurities, stress lines, etc. Each defect has different behaviors in terms of light reflection, scattering, or transmission. For example, scratches are more easily visible at specific angles due to light scattering. If a vertical viewing angle is used, there is a possibility of missing detection. Bubbles or impurities, on the other hand, require transmitted light or low-angle side light to highlight their internal structure.

[0003] In addition, for different types of glass, such as float glass, tempered glass, or glass with process defects, such as uneven coating, a combination of multiple angles is required for more accurate detection.

[0004] However, current glass defect detection equipment, especially visual inspection equipment, has a single detection location and cannot perform all-round defect detection.

[0005] Therefore, it is necessary to improve the current visual inspection equipment to overcome the above-mentioned shortcomings. Utility Model Content

[0006] The main objective of this application is to provide a glass defect detection device that uses a combination of multiple workstations and multiple detection angles to perform all-round detection of glass.

[0007] To achieve the above objectives, in a first aspect, this application provides a glass defect detection device, including a frame, a conveyor frame disposed on the frame for conveying glass, and a first detection frame, a second detection frame, and a third detection frame arranged sequentially along the conveying direction of the conveyor frame.

[0008] The first detection frame includes a first mounting frame extending along the width direction of the conveyor frame and a plurality of first detection units distributed along the length direction of the first mounting frame, wherein the first detection units are inclined relative to the conveying direction of the conveyor frame; the second detection frame includes a second mounting frame extending along the width direction of the conveyor frame, at least one first movable frame slidably disposed along the length direction of the second mounting frame, and a second detection unit fixedly disposed on the first movable frame, wherein the second detection unit is inclined relative to the width direction of the conveyor frame;

[0009] The third detection frame includes a third mounting frame extending along the width direction of the conveyor frame, at least one second movable frame slidably disposed along the length direction of the third mounting frame, and a third detection unit fixedly disposed on the second movable frame, wherein the third detection unit is disposed perpendicularly to the plane on which the conveyor frame is located.

[0010] Optionally, the first detection unit, the second detection unit, and the third detection unit are all vision cameras.

[0011] Optionally, it also includes a fourth inspection frame and a fifth inspection frame, wherein the fourth inspection frame is located between the second inspection frame and the third inspection frame, and the third inspection frame is located between the fourth inspection frame and the fifth inspection frame.

[0012] Optionally, the fourth detection frame includes a fourth mounting frame extending along the width direction of the conveyor frame and a plurality of fourth detection units distributed along the length direction of the fourth mounting frame. The fourth detection units are inclined relative to the conveying direction of the conveyor frame, and the inclination direction of the fourth detection units is opposite to that of the first detection units.

[0013] Optionally, the fifth detection frame includes a fifth mounting frame extending along the width direction of the conveyor frame and a plurality of fifth detection units distributed along the length direction of the fifth mounting frame. The fifth detection units are inclined relative to the conveying direction of the conveyor frame and their inclination direction is the same as that of the fourth detection unit. The inclination angle of the fifth detection unit is greater than that of the fourth detection unit.

[0014] Optionally, the first mounting bracket, the fourth mounting bracket, and the fifth mounting bracket each include mounting supports located on both sides and a first crossbeam fixedly disposed between the mounting supports on both sides. The first crossbeam has a mounting inclined surface, and the first detection unit, the fourth detection unit, and the fifth detection unit are respectively fixedly disposed on the corresponding mounting inclined surface.

[0015] Optionally, lifting plates are fixedly provided at both ends of the first crossbeam, the lifting plates are slidably arranged vertically relative to the mounting bracket, and a locking mechanism is provided between the lifting plates and the mounting bracket to lock the two in at least one working position.

[0016] Optionally, the second detection frame includes support frames located on both sides, a second crossbeam fixedly disposed between the two support frames, the first movable frame being slidably disposed along the length direction of the second crossbeam, and a first driving mechanism for driving the first movable frame to slide is disposed between the first movable frame and the second crossbeam.

[0017] Optionally, the third detection frame includes fixed frames located on both sides, a third crossbeam fixedly disposed between the two fixed frames, the second movable frame being slidably disposed along the length direction of the third crossbeam, and a second driving mechanism for driving the second movable frame to slide is disposed between the second movable frame and the third crossbeam.

[0018] Optionally, the conveyor frame includes a plurality of rotating rollers rotatably mounted on the frame, with a first helical gear fixedly mounted at the end of each roller. A transmission rod is also rotatably mounted on the frame, with a second helical gear fixedly mounted on the transmission rod corresponding to and cooperating with the first helical gear. The transmission rod is driven to rotate by a drive motor.

[0019] The glass defect detection device provided by this utility model has the following advantages compared with the prior art: the detection device includes at least a first detection unit that is tilted to detect scratches, a second detection unit that is tilted relative to the width direction to detect bubbles or impurities, and a third detection unit that is vertically positioned to detect surface stains and stress lines. This allows for comprehensive detection of the glass, avoiding any defects from being missed. Moreover, the use of visual inspection makes it more efficient. Attached Figure Description

[0020] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application. In the drawings:

[0021] Figure 1 This is a schematic diagram of the utility model. Figure 1 ;

[0022] Figure 2 This is a schematic diagram of the utility model. Figure 2 ;

[0023] Figure 3 This is a schematic diagram of the utility model. Figure 3 .

[0024] The components are: 1. Frame; 2. Conveyor frame; 3. First mounting frame; 4. Second mounting frame; 5. Third mounting frame; 6. First detection unit; 7. Second detection unit; 8. Third detection unit; 9. Fourth mounting frame; 10. Fifth mounting frame; 11. Fourth detection unit; 12. Fifth detection unit. Detailed Implementation

[0025] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0026] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0027] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0028] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0029] In addition, the term "multiple" should mean two or more.

[0030] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0031] like Figures 1-3 As shown, a glass defect detection device includes a frame 1, a conveyor frame 2 disposed on the frame 1 for conveying glass, and a first detection frame, a second detection frame and a third detection frame arranged sequentially along the conveying direction of the conveyor frame 2.

[0032] The first detection frame includes a first mounting frame 3 extending along the width direction of the conveyor frame 2 and a plurality of first detection units 6 distributed along the length direction of the first mounting frame 3. The first detection units 6 are inclined relative to the conveying direction of the conveyor frame 2.

[0033] The second detection frame includes a second mounting frame 4 extending along the width direction of the conveyor frame 2, at least one first movable frame slidably disposed along the length direction of the second mounting frame 4, and a second detection unit 7 fixedly disposed on the first movable frame, wherein the second detection unit 7 is inclined relative to the width direction of the conveyor frame 2;

[0034] The third detection frame includes a third mounting frame 5 extending along the width direction of the conveyor frame 2, at least one second movable frame slidably arranged along the length direction of the third mounting frame 5, and a third detection unit 8 fixedly arranged on the second movable frame. The third detection unit 8 is arranged perpendicularly to the plane where the conveyor frame 2 is located. Preferably, the first detection unit 6, the second detection unit 7 and the third detection unit 8 are all vision cameras.

[0035] Detection principle: The glass to be inspected is conveyed by the conveyor frame 2 and passes through the first inspection frame, the second inspection frame, and the third inspection frame in sequence. Since the first inspection frame is equipped with an inclined first inspection unit 6, scratches on the glass can be detected when passing through the first inspection unit 6. The second inspection unit 7 on the second inspection frame is inclined along the width direction, that is, it uses side light detection, so bubbles and impurities in the glass can be detected well. Moreover, during the inspection, the second inspection unit 7 can slide along the width direction of the glass, thus avoiding missed detections. Finally, it passes through the third inspection unit 8, which adopts high-position vertical detection, and can detect stains, stress lines, etc. on the glass surface, thereby realizing the complete detection of common glass defects.

[0036] To handle different types of glass inspection, a fourth inspection frame and a fifth inspection frame are also included. The fourth inspection frame is located between the second and third inspection frames, and the third inspection frame is located between the fourth and fifth inspection frames. Compared with the first inspection frame, the fourth and fifth inspection frames have different tilt angles. Therefore, by using a multi-angle combination inspection method, different types of glass can be handled, and the inspection is more comprehensive.

[0037] Specifically, the fourth detection frame includes a fourth mounting frame 9 extending along the width direction of the conveyor frame 2 and a plurality of fourth detection units 11 distributed along the length direction of the fourth mounting frame 9. The fourth detection units 11 are inclined relative to the conveying direction of the conveyor frame 2 and the inclination direction of the fourth detection units 11 is opposite to the inclination direction of the first detection unit 6.

[0038] Specifically, the fifth detection frame includes a fifth mounting frame 10 extending along the width direction of the conveyor frame 2 and a plurality of fifth detection units 12 distributed along the length direction of the fifth mounting frame 10. The fifth detection units 12 are inclined relative to the conveying direction of the conveyor frame 2 and their inclination direction is the same as that of the fourth detection unit 11. The inclination angle of the fifth detection unit 12 is greater than that of the fourth detection unit 11.

[0039] To facilitate the installation of the first detection unit 6, the second detection unit 7, and the third detection unit 8, the first mounting bracket 3, the fourth mounting bracket 9, and the fifth mounting bracket 10 each include mounting supports located on both sides and a first crossbeam fixedly disposed between the mounting supports on both sides. The first crossbeam has an installation slope, and the first detection unit 6, the fourth detection unit 11, and the fifth detection unit 12 are respectively fixedly disposed on the corresponding installation slope.

[0040] To adjust the height of the first detection unit 6, the second detection unit 7, and the third detection unit 8 for glass products of different thicknesses, lifting plates are fixedly installed at both ends of the first crossbeam. The lifting plates are slidably arranged vertically relative to the mounting bracket, and a locking mechanism is provided between the lifting plates and the mounting bracket to lock them in at least one working position. The specific structure of the locking mechanism is not the design focus of this utility model. Any locking mechanism that can lock two sliding parts in multiple positions can be used. For example, the locking mechanism in this embodiment includes a locking groove opened on the mounting bracket, and a locking bolt is provided on the lifting plate. The height of the lifting plate is adjusted by locking the lifting plate in different positions of the locking groove by the locking bolt.

[0041] Preferably, the second detection frame includes support frames located on both sides and a second crossbeam fixedly disposed between the two support frames. The first movable frame is slidably disposed along the length direction of the second crossbeam. A first driving mechanism for driving the first movable frame to slide is disposed between the first movable frame and the second crossbeam. The first driving mechanism can drive the first movable frame to reciprocate linearly along the second crossbeam. Its specific structure is not a design point. For example, in this embodiment, it includes a lead screw rotatably disposed on the second crossbeam. A screw sleeve that cooperates with the lead screw is fixedly disposed on the first movable frame. The lead screw is driven to rotate forward or backward by a motor, thereby realizing the reciprocating linear motion of the screw sleeve along the lead screw, thereby driving the first movable frame to move.

[0042] Preferably, the third detection frame includes fixed frames on both sides and a third crossbeam fixedly disposed between the two fixed frames. The second movable frame is slidably disposed along the length direction of the third crossbeam. A second driving mechanism for driving the second movable frame to slide is disposed between the second movable frame and the third crossbeam. Regarding the second driving mechanism, its specific structure is not a design focus. Its specific structure can be similar to the first driving mechanism. Alternatively, a rack can be fixedly disposed on the third crossbeam, and a gear that meshes with the rack can be rotatably disposed on the second movable frame. The gear is driven to rotate forward or backward by a motor, thereby realizing the second movable frame to perform linear reciprocating motion along the third crossbeam.

[0043] Finally, regarding the specific structure of the conveyor frame 2, the conveyor frame 2 includes several rotating rollers rotatably mounted on the frame 1. A first helical gear is fixedly mounted at the end of each rotating roller. A transmission rod is also rotatably mounted on the frame 1. A second helical gear corresponding to and cooperating with the first helical gear is fixedly mounted on the transmission rod. The transmission rod is driven to rotate by a drive motor. The glass to be conveyed is placed directly on the rotating rollers. The drive motor drives the transmission rod to rotate, thereby driving each second helical gear to rotate, which in turn drives the first helical gear to rotate, thus achieving synchronous rotation of each rotating roller. Of course, in addition to using helical gear transmission, chain or belt transmission can also be used to drive each rotating roller to rotate synchronously.

[0044] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A glass defect detection device, characterized in that, The device includes a frame, a conveyor frame mounted on the frame for conveying glass, and a first inspection frame, a second inspection frame, and a third inspection frame arranged sequentially along the conveying direction of the conveyor frame. The first inspection frame includes a first mounting frame extending along the width direction of the conveyor frame and a plurality of first inspection units distributed along the length direction of the first mounting frame, wherein the first inspection units are inclined relative to the conveying direction of the conveyor frame. The second inspection frame includes a second mounting frame extending along the width direction of the conveyor frame, at least one first movable frame slidably arranged along the length direction of the second mounting frame, and a second inspection unit fixedly mounted on the first movable frame, wherein the second inspection unit is inclined relative to the width direction of the conveyor frame. The third detection frame includes a third mounting frame extending along the width direction of the conveyor frame, at least one second movable frame slidably disposed along the length direction of the third mounting frame, and a third detection unit fixedly disposed on the second movable frame, wherein the third detection unit is disposed perpendicularly to the plane on which the conveyor frame is located.

2. The glass defect detection device as described in claim 1, characterized in that: The first detection unit, the second detection unit, and the third detection unit are all vision cameras.

3. The glass defect detection device as described in claim 1, characterized in that: It also includes a fourth testing frame and a fifth testing frame, wherein the fourth testing frame is located between the second testing frame and the third testing frame, and the third testing frame is located between the fourth testing frame and the fifth testing frame.

4. The glass defect detection device as described in claim 3, characterized in that: The fourth detection frame includes a fourth mounting frame extending along the width direction of the conveyor frame and a plurality of fourth detection units distributed along the length direction of the fourth mounting frame. The fourth detection units are inclined relative to the conveying direction of the conveyor frame, and the inclination direction of the fourth detection units is opposite to that of the first detection units.

5. The glass defect detection device as described in claim 4, characterized in that: The fifth detection frame includes a fifth mounting frame extending along the width direction of the conveyor frame and a plurality of fifth detection units distributed along the length direction of the fifth mounting frame. The fifth detection units are inclined relative to the conveying direction of the conveyor frame and their inclination direction is the same as that of the fourth detection unit. The inclination angle of the fifth detection unit is greater than that of the fourth detection unit.

6. The glass defect detection device as described in claim 5, characterized in that: The first mounting bracket, the fourth mounting bracket, and the fifth mounting bracket each include mounting supports located on both sides and a first crossbeam fixedly disposed between the two mounting supports. The first crossbeam has a mounting inclined surface, and the first detection unit, the fourth detection unit, and the fifth detection unit are respectively fixedly disposed on the corresponding mounting inclined surface.

7. The glass defect detection device as described in claim 6, characterized in that: Lifting plates are fixedly installed at both ends of the first crossbeam. The lifting plates are slidably arranged vertically relative to the mounting bracket, and a locking mechanism is provided between the lifting plates and the mounting bracket to lock them in at least one working position.

8. The glass defect detection device as described in claim 1, characterized in that: The second detection frame includes support frames located on both sides and a second crossbeam fixedly disposed between the two support frames. The first movable frame is slidably disposed along the length direction of the second crossbeam, and a first driving mechanism for driving the first movable frame to slide is disposed between the first movable frame and the second crossbeam.

9. A glass defect detection device as described in claim 1, characterized in that: The third testing frame includes fixed frames on both sides and a third crossbeam fixedly disposed between the two fixed frames. The second movable frame is slidably disposed along the length direction of the third crossbeam. A second driving mechanism for driving the second movable frame to slide is disposed between the second movable frame and the third crossbeam.

10. A glass defect detection device as described in claim 1, characterized in that: The conveyor frame includes several rotating rollers rotatably mounted on the frame. A first helical gear is fixedly mounted at the end of each rotating roller. A transmission rod is also rotatably mounted on the frame. A second helical gear corresponding to and cooperating with the first helical gear is fixedly mounted on the transmission rod. The transmission rod is driven to rotate by a drive motor.