CN219266111U - Float glass defect on-line detecting device - Google Patents
Float glass defect on-line detecting device Download PDFInfo
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- CN219266111U CN219266111U CN202222965058.2U CN202222965058U CN219266111U CN 219266111 U CN219266111 U CN 219266111U CN 202222965058 U CN202222965058 U CN 202222965058U CN 219266111 U CN219266111 U CN 219266111U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
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Abstract
The utility model discloses a float glass defect online detection device, which comprises a light source module, an imaging module and a data processing module; the light source module comprises a reflection light source sub-module, a uniform light transmission light source sub-module and a stripe transmission light source sub-module which are mutually independent, wherein the reflection light source sub-module is used for projecting light to one surface of the float glass, and the uniform light transmission light source sub-module and the stripe transmission light source sub-module are used for projecting light to the other surface of the float glass; the imaging module is electrically connected with the data processing module and is used for collecting the image information of the float glass to be detected and sending the image information to the data processing module. According to the detection device, the reflection light source sub-module, the uniform light transmission light source sub-module and the stripe transmission light source sub-module can respectively project light to float glass to irradiate various defects of the float glass, so that the detection accuracy is improved; and its three kinds of light sources can independent operation, compare in prior art, light source intensity is high, can realize the promotion of detection speed and efficiency.
Description
Technical Field
The utility model relates to the field of glass detection, in particular to an online detection device for defects of float glass.
Background
Float glass is produced by a floating method, and the principle is that glass liquid continuously flows in from a tank furnace and floats on the metal liquid surface to form glass. In the production process of float glass, defects such as bubbles, stones, inclusions, optical deformations, glass ribs and the like are easily generated due to uneven distribution of substances in the glass, so that before the float glass leaves a factory, the defects of the float glass are detected to ensure the quality of products.
Most of the existing detection devices for detecting defects of float glass on the market can only detect single types of defects, such as conventional defects of bubbles, stones and the like, or defects of optical deformation, glass ribs and the like, and only a few detection devices can detect multiple types of defects. The detection device with the single light source form leads to single detection imaging effect, so that defect identification errors are easy to occur, false detection and missing detection occur, and detection accuracy is poor. However, the light source structure of a few devices capable of detecting various types of defects is complex, and the light source needs to be emitted after being split by the light splitting assembly, so that the light source has low intensity, and the detection speed and the efficiency are low, so that the light source is not suitable for a production line with high production speed.
Disclosure of Invention
The utility model mainly aims to provide an on-line detection device for defects of float glass, and aims to solve the problems of poor accuracy and low efficiency of the existing detection of the defects of the float glass.
In order to achieve the above purpose, the present utility model provides an on-line detection device for defects of float glass, comprising a light source module, an imaging module and a data processing module;
the light source module comprises a reflection light source sub-module, a uniform light transmission light source sub-module and a stripe transmission light source sub-module which are mutually independent, wherein the reflection light source sub-module is used for projecting light to one surface of the float glass, and the uniform light transmission light source sub-module and the stripe transmission light source sub-module are used for projecting light to the other surface of the float glass;
the imaging module is electrically connected with the data processing module and is used for collecting the image information of the float glass to be detected and sending the image information to the data processing module.
In some embodiments, the imaging device further comprises a control module, wherein the light source module and the imaging module are electrically connected with the control module.
In some embodiments, the reflective light source submodule includes a plurality of first LED light beads disposed in sequence.
In some embodiments, the light-equalizing transmission light source submodule comprises a plurality of parallel LED lamp groups, and each LED lamp group comprises a plurality of second LED lamp beads which are sequentially arranged.
In some embodiments, the stripe transmission light source submodule includes a plurality of third LED lamp beads and a stripe film which are arranged in sequence, and the stripe film is located on the light projection path of the plurality of third LED lamp beads.
In some embodiments, the striped transmissive light source sub-module further comprises a diffusion film positioned between the plurality of third LED light beads and the striped film.
In some embodiments, the imaging module comprises a first camera and a second camera, wherein the first camera is arranged opposite to the strip transmission light source sub-module and is used for collecting image information of float glass after light is projected by the strip transmission light source sub-module; the second camera is arranged opposite to the uniform light transmission light source submodule and is used for collecting image information of the float glass after light rays are projected by the uniform light transmission light source submodule or the reflection light source submodule.
In some embodiments, the first camera and/or the second camera is an ultra-high-definition high-speed line camera and is configured with a high-resolution lens.
In some embodiments, the optical axis of the reflective light source sub-module is at an angle of 10 ° to 20 ° to the normal of the first camera.
In some embodiments, the angle of the optical axis of the stripe transmission light source sub-module and the normal of the first camera is 0 ° to 10 °, and the angle of the optical axis of the uniform light transmission light source sub-module and the normal of the first camera is 10 ° to 20 °.
According to the on-line detection device for the defects of the float glass, the reflection light source sub-module, the uniform light transmission light source sub-module and the stripe transmission light source sub-module can be respectively used for projecting light rays to the float glass so as to irradiate various defects of the float glass, and the imaging module can acquire more defect information of the float glass, so that the phenomena of false detection and missing detection are avoided, and the detection accuracy is improved; and the reflection light source sub-module, the uniform light transmission light source sub-module and the stripe transmission light source sub-module can work independently respectively, and compared with the prior art, the light source has high intensity, and further can realize the improvement of detection speed and efficiency, so that the light source is well suitable for a production line with high production speed.
Drawings
FIG. 1 is a block diagram showing an on-line detection device for defects in float glass according to an embodiment of the present utility model;
FIG. 2 is a schematic diagram of an apparatus for on-line detecting defects in float glass according to an embodiment of the utility model.
Detailed Description
The following description of the embodiments of the present utility model will be made more clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
It will also be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
Furthermore, the description of "first," "second," etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.
The utility model provides a float glass defect online detection device, as shown in fig. 1, which comprises a light source module 10, an imaging module 20 and a data processing module 30;
the light source module 10 comprises a reflection light source sub-module 11, a uniform light transmission light source sub-module 12 and a stripe transmission light source sub-module 13 which are mutually independent, wherein the reflection light source sub-module 11 is used for projecting light rays to one surface of the float glass, and the uniform light transmission light source sub-module 12 and the stripe transmission light source sub-module 13 are used for projecting light rays to the other surface of the float glass;
the imaging module 20 is electrically connected with the data processing module 30, and is used for collecting the image information of the float glass to be measured and sending the image information to the data processing module 30.
In this embodiment, the reflective light source sub-module 11, the uniform light transmission light source sub-module 12 and the stripe transmission light source sub-module 13 are light source groups, and the complex transmission light source is split Cheng Junguang into the transmission light source sub-module 12 and the stripe transmission light source sub-module 13, so that the transmission light source can be designed more freely, and the defect detection degree is improved. Meanwhile, the brightness of the light source can be improved, the higher the brightness of the light source is, the shorter the exposure time required by the imaging module 20 is, the higher the scanning line frequency is, and the production line with higher production speed can be adapted.
The reflective light source sub-module 11 is used for detecting concave-convex defects on glass and assisting in detecting bubble defects, the concave-convex defects can cause uneven surface of the glass, and under the irradiation of the reflective light source sub-module 11, the defects are dark in a camera and are easy to detect; the light-equalizing transmission light source sub-module 12 is used for detecting defects of opaque types such as stones and sundries, and the defects such as stones and sundries can be shown as a black cluster in a camera under the irradiation of the light-equalizing transmission light source sub-module 12, so that the detection is easy; the stripe transmission light source sub-module 13 is used for detecting defects of the glass bead and the optical deformation type, and the defects of the glass bead and the optical deformation type which are basically invisible under uniform white light can cause distortion of black and white stripes due to the fact that the refractive index emission in the glass is changed, so that the defects become extremely obvious and detectable.
The imaging component is used for collecting image information irradiated to the surface of the float glass by the reflecting light source sub-module 11, the uniform light transmission light source sub-module 12 or the stripe transmission light source sub-module 13. The imaging module 20 is electrically connected with the data processing module 30, after the imaging module 20 acquires the float glass image, the float glass image is sent to the data processing module 30, so that the data processing module 30 detects whether a defect exists according to the float glass image, and if the defect exists, the type of the defect is further confirmed.
The data processing module 30 contains an image preprocessing algorithm, after the image information sent by the imaging module 20 is obtained, the defect image in the float glass image is separated from the background image to extract defect characteristics, and then the final recognition and classification are performed by the data terminal of the data processing module 30. The data terminal comprises a traditional image processing algorithm and a deep learning model, and defects are identified and classified in a combined mode, so that the accuracy and the efficiency of detection are improved.
According to the on-line detection device for the defects of the float glass, the reflection light source sub-module 11, the uniform light transmission light source sub-module 12 and the stripe transmission light source sub-module 13 can be respectively used for projecting light rays to the float glass so as to irradiate various defects of the float glass, the imaging module 20 can acquire more defect information of the float glass, and the phenomena of false detection and omission detection are avoided, so that the detection accuracy is improved; and the reflection light source sub-module 11, the uniform light transmission light source sub-module 12 and the stripe transmission light source sub-module 13 can work independently respectively, and compared with the prior art, the light source has high intensity, and further the detection speed and the efficiency can be improved, so that the light source is well suitable for a production line with high production speed.
In some embodiments, as shown in fig. 1, the light source module 10 and the imaging module 20 are further included in the control module 40, and are electrically connected to the control module 40. In this embodiment, the reflective light source module 10, the uniform light transmission light source sub-module 12 and the stripe transmission light source sub-module 13 can emit light with different brightness and angles according to the control of the control module 40, so as to achieve image acquisition of the same defect in different illumination environments, greatly improve the acquisition amount of defect information, significantly improve the classification and identification effects of the defects, and achieve accurate detection of various float glass defects. The control module 40 gives out a synchronous signal to control the reflective light source module 10, the uniform light transmission light source sub-module 12 and the stripe transmission light source sub-module 13 to be sequentially lightened to form light fields, the light sources which are lightened at different times form different light fields, the imaging module 20 focuses on float glass, and the synchronous light sources sequentially perform image acquisition, so that each position has a corresponding image on each light field.
In some embodiments, the reflective light source sub-module 11 includes a plurality of first LED light beads disposed in sequence. In this embodiment, the reflective light source sub-module 11 includes a plurality of first LED lamp beads that set gradually, and the first LED lamp beads can light up in order according to actual demands. For example, in a pulse signal, the first, fifth and ninth lamp beads are turned on, the second pulse turns on the second, sixth and tenth lamp beads, and so on, so that various lighting angles are realized, and more comprehensive defect information is obtained.
In some embodiments, the uniform light transmission light source sub-module 12 includes a plurality of LED light groups arranged side by side, each LED light group including a plurality of second LED light beads arranged in sequence. In this embodiment, the light-equalizing transmission light source sub-module 12 may adopt a white light-equalizing transmission light source, where the light-equalizing transmission light source sub-module 12 includes a plurality of parallel LED lamp groups, each LED lamp group includes a plurality of second LED lamp beads that set gradually, the light source intensity and the light source uniformity are guaranteed to a plurality of second LED lamp beads, and the second LED lamp beads can be lit up in sequence according to actual requirements. For example, in a pulse signal, the first row, the fifth row and the ninth row of the lamp beads are turned on, the second row, the sixth row and the tenth row of the lamp beads are turned on by a second pulse, and so on, so that multi-dimensional information of defects is further provided, and accurate detection of the defects of the float glass is realized.
In some embodiments, the stripe transmissive light source sub-module 13 includes a plurality of third LED beads and a stripe film disposed in sequence, and the stripe film is located on a light projection path of the plurality of third LED beads. In this embodiment, the stripe transmission light source sub-module 13 may adopt a green stripe transmission light source, and the stripe film is a uniform black-and-white stripe film, so that the light emitted by the transmission light source sub-module forms black-and-white stripe light, and the stripe transmission light source sub-module 13 includes a plurality of third LED lamp beads that are sequentially arranged, and the stripe transmission light source sub-module 13 does not select to be lighted in a sectional manner due to the existence of the stripe film.
In some embodiments, the striped transmissive light source sub-module 13 further comprises a diffusion film positioned between the plurality of third LED light beads and the striped film. In this embodiment, a diffusion film is disposed under the stripe film, so that the stripe transmissive light source submodule 13 can emit very uniform light through the diffusion film.
In some embodiments, as shown in fig. 2, the imaging module 20 includes a first camera 21 and a second camera 22, where the first camera 21 is disposed opposite to the stripe transmission light source sub-module 13, and is used to collect image information of the float glass after the light is projected by the stripe transmission light source sub-module 13; the second camera 22 is disposed opposite to the light-equalizing transmission light source sub-module 12, and is used for collecting image information of the float glass after the light is projected by the light-equalizing transmission light source sub-module 12 or the reflection light source sub-module 11. In this embodiment, the imaging module 20 includes a first camera 21 and a second camera 22, the first camera 21 is used for collecting image information of the float glass after the light is projected by the stripe transmission light source sub-module 13, the second camera 22 is used for collecting image information of the float glass after the light is projected by the uniform light transmission light source sub-module 12 or the reflection light source sub-module 11, and by introducing the two cameras, the improvement of the detection speed is realized, the method can adapt to a production line with very high production speed, and the detection efficiency is improved.
In some embodiments, the first camera 21 and/or the second camera 22 are ultra-high-speed line cameras and are equipped with high-resolution lenses. In this embodiment, the first camera 21 and/or the second camera 22 use an ultra-high-speed linear array camera to increase the resolution, and the high resolution lens is selected to ensure that the pixel size of the linear array camera is fully utilized, and the optimal image is collected, so as to realize highly complex detection. The linear array camera is a camera adopting a linear array image sensor, the acquisition speed is high, and the linear array camera is utilized to scan projection images line by line so as to achieve uniform detection of the whole surface of the float glass. It should be noted that the scan lines of the two high-definition high-speed line cameras must be strictly coincident, so that defect information can be correctly collected, and false detection is avoided.
In some embodiments, the optical axis of the reflective light source sub-module 11 makes an angle of 10 ° to 20 ° with the normal of the first camera 21. In the present embodiment, the angle α formed by the optical axis of the reflective light source sub-module 11 and the normal line of the first camera 21 is 10 ° to 20 °, preferably 10 °.
In some embodiments, the angle of the optical axis of the stripe transmissive light source sub-module 13 to the normal of the first camera 21 is 0 ° to 10 °, and the angle of the optical axis of the uniform light transmissive light source sub-module 12 to the normal of the first camera 21 is 10 ° to 20 °. In the present embodiment, the angle between the optical axis of the stripe transmission light source sub-module 13 and the normal line of the first camera 21 is 0 ° to 10 °, preferably 0 °, i.e. the angle β between the optical axis of the uniform light transmission light source sub-module 12 and the normal line of the first camera 21 is 10 ° to 20 °, preferably 10 °, assuming that the angle α between the optical axis of the reflection light source sub-module 11 and the normal line of the first camera 21 is 10 °, the angle β between the optical axis of the stripe transmission light source sub-module 13 and the normal line of the first camera 21 is 10 °, which is merely exemplary, but not limiting, and those skilled in the art can design the same according to practical situations.
The above description of the preferred embodiments of the present utility model should not be taken as limiting the scope of the utility model, but rather should be understood to cover all modifications, variations and adaptations of the present utility model using its general principles and the following detailed description and the accompanying drawings, or the direct/indirect application of the present utility model to other relevant arts and technologies.
Claims (10)
1. The float glass defect online detection device is characterized by comprising a light source module, an imaging module and a data processing module;
the light source module comprises a reflection light source sub-module, a uniform light transmission light source sub-module and a stripe transmission light source sub-module which are mutually independent, wherein the reflection light source sub-module is used for projecting light to one surface of the float glass, and the uniform light transmission light source sub-module and the stripe transmission light source sub-module are used for projecting light to the other surface of the float glass;
the imaging module is electrically connected with the data processing module and is used for collecting the image information of the float glass to be detected and sending the image information to the data processing module.
2. The float glass defect online detection device of claim 1, further comprising a control module, wherein the light source module and the imaging module are electrically connected with the control module.
3. The float glass defect online detection device according to claim 1, wherein the reflective light source submodule comprises a plurality of first LED lamp beads which are arranged in sequence.
4. The float glass defect online detection device according to claim 1, wherein the uniform light transmission light source submodule comprises a plurality of LED lamp groups arranged in parallel, and each LED lamp group comprises a plurality of second LED lamp beads arranged in sequence.
5. The float glass defect online detection device according to claim 1, wherein the strip transmission light source submodule comprises a plurality of third LED lamp beads and strip films which are sequentially arranged, and the strip films are located on light projection paths of the plurality of third LED lamp beads.
6. The float glass defect online detection device of claim 5, wherein the striped transmissive light source sub-module further comprises a diffusion film positioned between the plurality of third LED beads and the striped film.
7. The device for on-line detection of defects in float glass according to claim 1, wherein the imaging module comprises a first camera and a second camera, the first camera is arranged opposite to the stripe-shaped transmission light source sub-module and is used for collecting image information of the float glass after light is projected by the stripe-shaped transmission light source sub-module; the second camera is arranged opposite to the uniform light transmission light source submodule and is used for collecting image information of the float glass after light rays are projected by the uniform light transmission light source submodule or the reflection light source submodule.
8. The apparatus for on-line detection of defects in float glass according to claim 7,
the first camera and/or the second camera is an ultra-high-definition high-speed linear array camera and is provided with a high-resolution lens.
9. The on-line detection device of defects in float glass according to claim 7, wherein an angle between an optical axis of the reflective light source sub-module and a normal line of the first camera is 10 ° to 20 °.
10. The on-line detection device for defects in float glass according to claim 7, wherein an angle between an optical axis of the stripe transmission light source sub-module and a normal line of the first camera is 0 ° to 10 °, and an angle between an optical axis of the uniform light transmission light source sub-module and a normal line of the first camera is 10 ° to 20 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222965058.2U CN219266111U (en) | 2022-11-07 | 2022-11-07 | Float glass defect on-line detecting device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222965058.2U CN219266111U (en) | 2022-11-07 | 2022-11-07 | Float glass defect on-line detecting device |
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| Publication Number | Publication Date |
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| CN219266111U true CN219266111U (en) | 2023-06-27 |
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| CN202222965058.2U Active CN219266111U (en) | 2022-11-07 | 2022-11-07 | Float glass defect on-line detecting device |
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- 2022-11-07 CN CN202222965058.2U patent/CN219266111U/en active Active
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