Glass optical detection device and glass detection system

Abstract

The application discloses a glass optical detection device and a glass detection system, and relates to the technical field of glass detection, wherein the glass optical detection device comprises a base, a stripe light source plate, a mirror and an observation plate, the base is provided with a plurality of conveying rollers arranged at intervals, the stripe light source plate is arranged on the base and is perpendicular to the conveying direction of the conveying rollers, the mirror is arranged on the base and is located on the first side of the conveying rollers, the mirror is provided with a first scale part, the observation plate is arranged on the base and is located on the second side of the conveying rollers, the observation plate is provided with an observation window, and the first side and the second side are two opposite sides of the conveying rollers; in the technical scheme provided by the application, on the one hand, the product utilization rate can be improved according to classification; on the other hand, the recent process change can be timely warned and traced, data support is provided for standardized production, and efficient linkage of the detection and production links is promoted.

Description

Technical Field

[0001] This application relates to the field of glass inspection technology, and in particular to a glass optical inspection device and a glass inspection system. Background Technology

[0002] Optical distortion is a crucial technical indicator in float glass quality testing. It refers to the degree of distortion of objects seen through the glass when viewed by a person, caused by surface irregularities or uneven refractive index within the glass. During float glass production, factors such as poor molten glass quality, uneven molten glass composition, large nodules, streaks, ripples, strings of bubbles, stones, or improper forming parameters can all lead to substandard optical properties in float glass.

[0003] The zebra stripe method is used to evaluate the optical deformation properties of float glass. This is usually done by sampling the cut glass offline and using manual zebra stripe visual inspection or zebra stripe meter to test and evaluate the optical properties of the sample.

[0004] However, visual inspection can only detect whether a glass sample is deformed, but cannot detect the specific degree of deformation. Utility Model Content

[0005] This application discloses a glass optical inspection device and a glass inspection system, aiming to provide a glass optical inspection device that can detect the degree of deformation of glass.

[0006] One embodiment of this application provides a glass optical inspection device, comprising: The base is equipped with multiple conveyor rollers spaced at intervals; A striped light source plate is disposed on the base and is perpendicular to the conveying direction of the conveying roller; A reflector is disposed on the base and located on the first side of the conveyor roller, and the reflector is provided with a first scale portion; An observation plate is provided on the base and located on the second side of the conveying roller. The observation plate has an observation window, and the first side and the second side are two opposite sides of the conveying roller.

[0007] In one embodiment, the observation plate is provided with a second scale portion, which is disposed near the observation window; the first scale portion and the second scale portion extend along the same straight line direction.

[0008] In one embodiment, the first scale portion is located on the first side of the reflector facing the conveyor roller; the second scale portion is located on the side of the observation plate facing away from the conveyor roller.

[0009] In one embodiment, the reflector and the observation plate are arranged parallel to each other; and The striped light source plate and the reflector are arranged perpendicularly.

[0010] In one embodiment, the glass optical inspection device further includes a light-shielding plate disposed on the reflector and the observation plate, the light-shielding plate, the reflector, and the observation plate forming an inspection space.

[0011] In one embodiment, the base is provided with snap-fit ​​portions at both ends along the conveying direction.

[0012] In one embodiment, the base is provided with a mounting groove, and a plurality of the conveying rollers are disposed in the mounting groove.

[0013] In one embodiment, the reflector is detachably mounted on the base; and / or The observation panel is detachably mounted on the base.

[0014] In one embodiment, the striped light source panel includes a light source assembly, which includes a light source and a mounting bracket, the mounting bracket being rotatably mounted on the base.

[0015] One embodiment of this application also proposes a glass inspection system, including the glass optical inspection device as described above.

[0016] This application utilizes a reflector on the first side of a conveyor roller and an observation plate on the second side of the conveyor roller, with an observation window on the observation plate to visually inspect whether a glass sample is deformed. Specifically, the glass optical inspection device includes a base, a striped light source plate, a reflector, and an observation plate. The base is equipped with a conveyor roller for transporting the glass sample, and the striped light source plate is positioned directly above the conveyor roller. When the glass passes over the conveyor roller, its surface reflects the stripes on the surface of the striped light source plate. The striped glass sample is further reflected in the reflector. When the glass has deformed defects, the stripes on its surface will be distorted, and the degree of distortion (i.e., the specific extent of distortion) will be visually reflected on the first scale unit at the bottom of the reflector. For example, if the distorted portion occupies one scale unit, it is a slight defect; if the distorted portion occupies two scale units, it is a moderate defect; and if the distorted portion occupies more than two scale units, it is a severe defect. Classifying glass samples in this way can improve product utilization and provide timely warnings and traceability of recent process changes, thus providing data support for standardized production and promoting efficient linkage between testing and production processes. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments or prior art of this application, the drawings used in the description of the embodiments or prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 A schematic diagram of a structure of an embodiment of the glass optical inspection device provided in this application; Figure 2 A cross-sectional view of the first embodiment of the glass optical inspection device provided in this application; Figure 3 A cross-sectional view of the second embodiment of the glass optical inspection device provided in this application; Figure 4 This is a schematic diagram of the striped light source plate in a glass optical inspection device. Figure 5 for Figure 4 A schematic diagram of the light source assembly of the medium stripe light source board.

[0019] Explanation of icon numbers: 100. Glass optical inspection device; 1. Base; 11. Conveyor roller; 12. Snap-fit ​​part; 1a. Mounting groove; 2. Striped light source plate; 21. Light source assembly; 211. Light; 212. Fixture; 213. Hinge part; 3. Reflector; 31. First scale part; 4. Observation plate; 41. Second scale part; 4a. Observation window; 5. Light shield. Detailed Implementation

[0020] The technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings of several embodiments. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0021] It should be noted that if multiple embodiments of this application involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0022] Furthermore, if multiple embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text implies three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0023] Optical distortion is a crucial technical indicator in float glass quality testing. It refers to the degree of distortion of objects seen through the glass when viewed by a person, caused by surface irregularities or uneven refractive index within the glass. During float glass production, factors such as poor molten glass quality, uneven molten glass composition, large nodules, streaks, ripples, strings of bubbles, stones, or improper forming parameters can all lead to substandard optical properties in float glass.

[0024] The zebra stripe method is used to evaluate the optical deformation properties of float glass. This typically involves offline sampling and testing of cut glass samples, using a manual zebra stripe for visual inspection or a zebra meter to assess the optical performance of the samples. However, visual inspection can only detect whether the glass sample has deformed, but cannot determine the specific degree of deformation.

[0025] To address the aforementioned problems, this application proposes a glass optical inspection device 100 to solve the technical issues mentioned above.

[0026] Please see Figure 1 In one embodiment of this application, the glass optical inspection device 100 includes a base 1, a striped light source plate 2, a reflector 3, and an observation plate 4. The base 1 is provided with a plurality of spaced conveying rollers 11. The striped light source plate 2 is provided on the base 1 and is perpendicular to the conveying direction of the conveying rollers 11. The reflector 3 is provided on the base 1 and is located on the first side of the conveying rollers 11. The reflector 3 is provided with a first scale portion 31. The observation plate 4 is provided on the base 1 and is located on the second side of the conveying rollers 11. The observation plate 4 has an observation window 4a. The first side and the second side are two opposite sides of the conveying rollers 11.

[0027] Understandably, when testing a glass sample, the glass sample is placed on the conveyor roller 11 of the base 1. The conveyor roller 11 can drive the glass to move along the conveying direction so as to test different areas of the glass. Since the striped light source plate 2 is located on the base 1 and is perpendicular to the conveying direction of the conveyor roller 11, it will emit light with specific striped characteristics. This light will penetrate the glass to be tested and propagate to the reflector 3 on the first side of the conveyor roller 11. When light reaches the reflector 3, the reflector 3 reflects the light carrying the glass information. Since the observation plate 4 is located on the second side opposite to the conveyor roller 11 and the reflector 3, and has an observation window 4a, the reflected light will be accurately projected onto the area of ​​the observation plate 4. The staff can observe the stripe image formed by the reflection through the observation window 4a. Since the reflector 3 has a first scale part 31, if the glass has optical deformation (such as stripe distortion, uneven refractive index, etc.), the light will be refracted and deflected when it passes through the glass, causing the stripe image reflected by the reflector 3 to the observation window 4a to appear distorted, misaligned, or other abnormal. The staff can observe the stripe abnormality through the observation window 4a and, in combination with the area distance of the first scale part 31, accurately determine the position, range, and degree of the glass optical deformation, thereby completing the detection of the glass optical performance.

[0028] This application uses a reflector 3 on the first side of a conveyor roller 11 and an observation plate 4 on the second side of the conveyor roller 11, with an observation window 4a on the observation plate 4, to visually inspect whether a glass sample is deformed. Specifically, the glass optical inspection device 100 includes a base 1, a striped light source plate 2, a reflector 3, and an observation plate 4. The base 1 is equipped with a conveyor roller 11 for conveying glass samples. The striped light source plate 2 is located directly above the conveyor roller 11. When the glass passes over the conveyor roller 11, its surface reflects the stripes on the surface of the striped light source plate 2. The striped glass sample is further reflected on the reflector 3. When the glass has deformed defects, the stripes on its surface will be distorted, and the degree of distortion (i.e., the specific degree of distortion) will be directly reflected on the first scale portion 31 at the bottom of the reflector 3. For example, if the distorted part occupies one scale unit, it is a slight defect; if the distorted part occupies two scale units, it is a moderate defect; and if the distorted part occupies more than two scale units, it is a severe defect. Classifying glass samples in this way can improve product utilization and provide timely warnings and traceability of recent process changes, providing data support for standardized production and promoting efficient linkage between testing and production processes.

[0029] Please see Figure 1In some embodiments of this application, the observation plate 4 is provided with a second scale portion 41, which is located near the observation window 4a; the first scale portion 31 and the second scale portion 41 extend along the same straight line. The second scale portion 41 and the first scale portion 31 extend along the same straight line and each scale corresponds one-to-one. Furthermore, the design of the second scale portion 41 being close to the observation window 4a brings several significant benefits to glass optical inspection work. From the perspective of operator convenience, since the second scale portion 41 is adjacent to the observation window 4a, when performing visual inspection through the observation window 4a, the operator does not need to frequently adjust the viewing angle to compare with distant or inconveniently located scales. They can directly and quickly correlate the stripe distortion caused by glass deformation with the second scale portion 41 within the observation field of view, greatly reducing fatigue caused by switching viewing angles and improving comfort and efficiency during inspection. Especially in scenarios where multiple glass samples are continuously inspected over a long period, this effectively reduces the operator's workload.

[0030] From the perspective of testing accuracy, this design, with its one-to-one scale correspondence and close-range observation, avoids reading errors caused by line-of-sight deviations or long distances. Staff can more clearly and accurately determine the extent of the distorted stripes on the scale. Whether defining minor, moderate, or severe defects, more reliable judgments can be made based on precise scale readings, reducing misjudgments caused by inaccurate scale readings and ensuring the accuracy of test results. From the perspective of data recording and traceability, the precise and convenient scale readings allow staff to quickly record the deformation degree data of each glass sample. This accurate data not only provides a reliable basis for glass product classification, helping to improve product utilization, but also provides more accurate testing data support when tracing recent process changes. This allows the production process to more clearly understand the impact of process issues on the optical deformation of glass, further promoting efficient collaboration between testing and production, and laying a more solid foundation for standardized production.

[0031] Please see Figure 1 In some embodiments of this application, the reflector 3 and the observation plate 4 are arranged parallel to each other; the striped light source plate 2 and the reflector 3 are arranged perpendicularly. The parallelism between the reflector 3 and the observation plate 4 ensures that the light reflected by the reflector 3 is projected onto the observation plate 4 at a vertical or stable angle, avoiding deviation of the reflected light due to non-parallelism. This allows the striped image carrying glass information to be completely and accurately presented in the area of ​​the observation plate 4 corresponding to the observation window 4a, enabling staff to clearly capture the complete striped image through the observation window 4a without adjusting the observation angle due to image deviation.

[0032] Furthermore, by setting the striped light source plate 2 perpendicular to the reflector 3, the striped light emitted by the light source plate can propagate in a direction perpendicular to the reflector 3 and be projected onto the reflector 3. This perpendicular incident method can minimize the diffuse reflection of light on the surface of the reflector 3, ensuring the light reflection efficiency. At the same time, it can ensure that the reflected striped image can completely retain the original characteristics of the stripes of the light source plate, avoiding the stretching and deformation of the striped image due to improper light incident angle. This ensures that the striped image observed by the staff through the observation window 4a can truly reflect the optical state of the glass. Combined with the one-to-one correspondence of the scales on the reflector 3 and the observation plate 4, the location, range and degree of optical deformation of the glass can be determined more accurately, providing reliable technical support for glass optical inspection.

[0033] Please see Figure 4 In some embodiments of this application, the glass optical inspection device 100 further includes a light-shielding plate 5, which is disposed on the reflector 3 and the observation plate 4. The light-shielding plate 5, the reflector 3, and the observation plate 4 enclose a detection space. In the structure in which the reflector 3, the observation plate 4, and the light-shielding plate 5 enclose the detection space, the light-shielding plate 5 provides crucial protection for the glass optical inspection work by isolating ambient light interference. From the perspective of imaging clarity, during the inspection process, the light emitted by the stripe light source plate 2 needs to pass through the glass and be reflected by the reflector 3 to form a precise stripe image. If ambient light enters the detection space, it will superimpose with the reflected stripe light, causing uneven brightness and decreased contrast in the stripe image presented by the observation window 4a, and even masking the subtle distortion of the stripes caused by slight optical deformation of the glass. The light-shielding plate 5 can block ambient light from entering, allowing only the effective light from the stripe light source plate 2 to remain in the detection space, making the edges of the reflected stripe image clearer and the stripe features more prominent, making it easier for operators to distinguish the difference between normal and abnormal stripes.

[0034] Please continue reading. Figure 1 In some embodiments, the base 1 is provided with locking parts 12 at both ends along the conveying direction. In glass production or testing lines, glass samples need to be transferred from the previous conveying equipment (such as conveyor rollers on the production line) to this testing device, and may then enter the subsequent processing or sorting stages. The locking parts 12 allow this device to precisely connect with the front and rear conveying equipment, avoiding jamming, tilting, or even falling of the glass sample during the transfer process due to equipment connection gaps or height deviations. This ensures that the glass can smoothly and steadily enter the conveying rollers 11 of the testing device along the preset conveying direction, eliminating the need for frequent manual adjustments to the glass position and reducing potential damage to the glass during the conveying process. Moreover, this conveying process allows glass samples to quickly enter the testing station, eliminating the need for staff to wait for the glass to be adjusted into place and enabling faster initiation of the testing process. Especially in batch testing scenarios, continuous conveying can reduce the preparation time for testing a single piece of glass, significantly improving overall testing efficiency and preventing interruptions in the testing process due to unsmooth conveying.

[0035] To install multiple conveyor rollers 11, please refer to [link / reference]. Figure 2 The base 1 is provided with a mounting groove 1a, and multiple conveying rollers 11 are disposed in the mounting groove 1a. The mounting groove 1a can provide a fixed mounting space for each conveying roller 11, avoid the conveying roller 11 from being misaligned or shaking during installation, ensure that multiple conveying rollers 11 are neatly arranged along the preset conveying direction, and at the same time reduce the loosening caused by uneven force on the conveying rollers 11 during the movement of the glass, thus ensuring the smooth transport of the glass.

[0036] In some embodiments of this application, the reflector 3 and the observation plate 4 can be detachably fixed to the base 1 by snap-fit, screw-fit, or other installation methods. During long-term testing, dust, glass fragments, and other impurities easily adhere to the surface of the reflector 3, affecting light reflection efficiency and image clarity. The observation window 4a and scale of the observation plate 4 may also become stained or worn due to environmental factors. The detachable design allows operators to quickly remove the reflector 3 or observation plate 4 for thorough cleaning, polishing, or calibration without disassembling the entire base 1, ensuring the optical performance and scale accuracy of the components and avoiding testing errors caused by component contamination or wear. Furthermore, if the reflector 3 develops mirror scratches or the reflective coating peels off, or if the observation plate 4 has blurred scales or a damaged observation window 4a, the detachable structure greatly simplifies the replacement process. Operators can directly replace the damaged components without adjusting the base 1 or other core structures of the device, reducing maintenance time and costs and minimizing the impact of device downtime on batch testing. Furthermore, when it is necessary to test glass samples of different thicknesses and sizes, or to adjust the testing accuracy, such as by replacing the reflector 3 with a higher resolution or the observation plate 4 with different scale specifications, the detachable design allows for flexible replacement of the appropriate reflector 3 or observation plate 4 without replacing the entire testing device. This enhances the device's adaptability to different testing needs and expands its application scenarios.

[0037] Please see Figure 4 and combined Figure 5 In some embodiments of this application, the striped light source plate 2 includes a light source assembly 21, which includes a light source 211 and a mounting bracket 212. The mounting bracket 212 is rotatably mounted on the base 1 via a hinge 213. When dealing with glass samples of different thicknesses and materials, their transmittance and refraction of light vary. Adjusting the illumination angle allows light to penetrate the glass at a more suitable angle. For example, when testing thicker glass, appropriately adjusting the angle can reduce the refraction loss of light inside the glass, ensuring sufficient light reaches the reflector 3. When testing ultra-thin glass, adjusting the angle can prevent image blurring caused by excessive light penetration, allowing different types of glass to form clear striped reflection images.

[0038] This application also proposes a glass inspection system, which includes the glass optical inspection device 100 as described above. The specific structure of the glass optical inspection device 100 is as described in the above embodiments. Since this glass inspection system adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0039] The above description is merely an exemplary embodiment of this application and does not limit the patent scope of this application. Any equivalent structural transformations made based on the technical concept of this application and the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.

Claims

1. A glass optical inspection device, characterized in that, include: The base is equipped with multiple conveyor rollers spaced at intervals; A striped light source plate is disposed on the base and is perpendicular to the conveying direction of the conveying roller; A reflector is disposed on the base and located on the first side of the conveyor roller, and the reflector is provided with a first scale portion; An observation plate is provided on the base and located on the second side of the conveying roller. The observation plate has an observation window, and the first side and the second side are two opposite sides of the conveying roller.

2. The glass optical inspection device as described in claim 1, characterized in that, The observation plate is provided with a second scale section, which is located close to the observation window; the first scale section and the second scale section extend along the same straight line direction.

3. The glass optical inspection device as described in claim 2, characterized in that, The first scale portion is located on the first side of the reflector facing the conveyor roller; the second scale portion is located on the side of the observation plate facing away from the conveyor roller.

4. The glass optical inspection device as described in claim 1, characterized in that, The reflector and the observation plate are arranged parallel to each other; and The striped light source plate and the reflector are arranged perpendicularly.

5. The glass optical inspection device according to any one of claims 1 to 4, characterized in that, The glass optical inspection device also includes a light-shielding plate, which is disposed on the reflector and the observation plate, and the light-shielding plate, the reflector and the observation plate together form an inspection space.

6. The glass optical inspection device according to any one of claims 1 to 4, characterized in that, The base is provided with locking parts at both ends along the conveying direction.

7. The glass optical inspection device as described in claim 6, characterized in that, The base is provided with a mounting groove, and a plurality of the conveying rollers are disposed in the mounting groove.

8. The glass optical inspection device according to any one of claims 1 to 4, characterized in that, The reflector is detachably mounted on the base; and / or The observation panel is detachably mounted on the base.

9. The glass optical inspection device according to any one of claims 1 to 4, characterized in that, The striped light source panel includes a light source assembly, which includes a light source and a mounting bracket, the mounting bracket being rotatably mounted on the base.

10. A glass inspection system, characterized in that, Includes the glass optical inspection device as described in any one of claims 1 to 9.

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