CN220305182U

CN220305182U - Glass defect detection equipment, glass defect detection line and photovoltaic glass production line

Info

Publication number: CN220305182U
Application number: CN202322031227.XU
Authority: CN
Inventors: 王技科; 赵博; 张凯斌
Original assignee: Hunan Keluode Technology Co ltd
Current assignee: Hunan Keluode Technology Co ltd
Priority date: 2023-07-31
Filing date: 2023-07-31
Publication date: 2024-01-05
Anticipated expiration: 2033-07-31

Abstract

The utility model belongs to the glass production field especially relates to a glass defect detection equipment, glass defect detection line and photovoltaic glass production line, this glass defect detection equipment is through being used for carrying out the limit defect detection device that detects to glass and being used for carrying out the face defect detection device that detects to glass's surface, silk screen printing and coating film defect in same frame, utilize a master control device to carry out analysis and processing to the data that edge defect detection device and face defect detection device detected, this glass defect detection equipment integration detects glass's surface promptly, silk screen printing, coating film and limit defect in an organic whole, equipment occupation space is little, construction environment is succinct, alleviate personnel management cost, be convenient for the overall arrangement of glass defect detection line and photovoltaic glass production line and reduction in production cost.

Description

Glass defect detection equipment, glass defect detection line and photovoltaic glass production line

Technical Field

The application relates to the technical field of glass production, in particular to glass defect detection equipment, a glass defect detection line and a photovoltaic glass production line.

Background

In the production process of the photovoltaic glass, defect detection needs to be carried out on the surface, screen printing, coating and edge of the glass in order to ensure the quality of the final product. The existing detection mode is to detect defects of the glass surface, screen printing, coating and edges through different devices independently, so that multiple persons are required to maintain different devices, personnel management cost is increased, and the multiple devices occupy large space and are complex in construction environment.

Disclosure of Invention

The embodiment of the application provides glass defect detection equipment, a glass defect detection line and a photovoltaic glass production line, which are used for solving the technical problems that the existing equipment is used for independently detecting glass surface, screen printing, coating and edge defects, personnel management cost is high, equipment occupation space is large, and construction environment is complex.

To this end, according to an aspect of the present application, there is provided a glass defect detecting apparatus for detecting glass conveyed along a conveyance line, the glass defect detecting apparatus including a main control device, a frame, and an edge defect detecting device and a face defect detecting device sequentially provided on the frame in a conveyance direction of the glass;

the edge defect detection device comprises two visual detection modules which are respectively arranged on two opposite sides of the conveying line, wherein the two visual detection modules are used for respectively detecting edge defects on two opposite sides of glass on the conveying line in the conveying direction;

the face defect detection device is used for detecting surface defects, silk screen defects and coating defects of the glass on the conveying line;

the main control device is in communication connection with the edge defect detection device and the face defect detection device, and is used for analyzing and processing data detected by the edge defect detection device and the face defect detection device.

Optionally, the visual detection module includes shell, area array camera and illumination light source, the shell be close to one side of transfer chain is provided with the confession glass's on the transfer chain limit portion passes through the opening, area array camera set up in the shell and be used for gathering glass's in the opening image data of limit portion, illumination light source set up in the shell and be used for glass's in the opening limit portion provides the illumination.

Optionally, the visual detection module comprises three area array cameras, and the three area array cameras are used for respectively acquiring the image data of the edge of the glass in the opening from different directions.

Optionally, the facial defect detection device includes a linear camera, a transmission light source and a reflection light source, wherein the linear camera, the transmission light source and the reflection light source are arranged on the frame, the linear camera and the reflection light source are positioned above the glass on the conveying line, and the transmission light source is positioned below the glass on the conveying line.

Optionally, the facial defect detection device comprises two linear array cameras, and the distance between the two linear array cameras in the width direction of the conveying line is adjustable; and/or the number of the groups of groups,

the face defect detection device comprises two reflection light sources, wherein the two reflection light sources are used for respectively illuminating the glass on the conveying line from different directions.

Optionally, the edge defect detecting device further includes two linear modules, the two linear modules are arranged on the frame, the two visual detecting modules are respectively arranged on the two linear modules, and the two visual detecting modules can move in opposite directions or in opposite directions in the width direction of the conveying line under the driving of the two linear modules.

Optionally, the glass defect detecting device further includes a position sensor, the position sensor is disposed on the frame through a support, the position sensor, the edge defect detecting device and the face defect detecting device are sequentially disposed along a conveying direction of the conveying line, the position sensor is in communication connection with the main control device, and when glass passes through the position sensor, the main control device controls the edge defect detecting device and the face defect detecting device to work.

According to another aspect of the present application, there is provided a glass defect detection line comprising a conveyor line for conveying glass to be detected and a glass defect detection device as described above for detecting glass conveyed along the conveyor line.

Optionally, the transfer chain includes leading transfer chain and the rear-mounted transfer chain that follows the direction of delivery interval and set up, the frame is located leading transfer chain with between the rear-mounted transfer chain, the output of leading transfer chain dock in limit portion defect detection device, the input of rear-mounted transfer chain dock in face defect detection device.

According to a further aspect of the present application, there is provided a photovoltaic glass production line comprising a glass defect detection apparatus as described above or a glass defect detection line as described above.

The glass defect detection equipment, the glass defect detection line and the photovoltaic glass production line provided by the application have the beneficial effects that: compared with the prior art, the glass defect detection equipment of the application is characterized in that the edge defect detection device for detecting the edge defect of glass and the face defect detection device for detecting the surface, screen printing and film coating defects of the glass are arranged on the same frame, and the main control device is used for analyzing and processing the data detected by the edge defect detection device and the face defect detection device, namely, the glass defect detection equipment integrates the detection of the surface, the screen printing, the film coating and the edge defect of the glass, so that the equipment occupies small space, the construction environment is simpler, the personnel management cost is reduced, the layout of the glass defect detection line and the photovoltaic glass production line is facilitated, and the production cost is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Wherein:

FIG. 1 is a schematic view showing the overall structure of a glass defect detecting apparatus according to an embodiment of the present application;

FIG. 2 is a schematic view of a structure of another view of the glass defect detecting apparatus shown in FIG. 1;

FIG. 3 is a schematic view showing a structure of an edge defect detecting device in a glass defect detecting apparatus according to an embodiment of the present application;

FIG. 4 is a schematic view showing a partial structure of a glass defect detecting apparatus according to an embodiment of the present application;

FIG. 5 is a schematic longitudinal cross-sectional view of the structure of FIG. 4;

FIG. 6 is a schematic top view of a glass defect detection line according to an embodiment of the present application;

FIG. 7 is a schematic view of the cross-sectional structure A-A of FIG. 6;

FIG. 8 is a schematic workflow diagram of a glass defect detection apparatus according to an embodiment of the present application.

Description of main reference numerals:

10. a glass defect detection device;

20. a conveying line; 21. a front conveying line; 22. a rear conveying line;

30. glass;

100. a master control device;

200. a frame; 210. a column; 220. a connecting beam;

300. edge defect detection means; 310. a visual detection module; 311. a housing; 3111. a notch; 312. an area array camera; 313. an illumination light source; 320. a linear module;

400. a face defect detecting device; 410. a line camera; 420. a transmission light source; 430. a reflective light source;

500. a bracket;

600. a position sensor;

700. and a water chiller.

Detailed Description

In order to facilitate an understanding of the present application, a more complete description of the present application will now be provided with reference to the relevant figures. Preferred embodiments of the present application are shown in the drawings. This application may, however, be embodied in many other different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will 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 be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present application and simplify description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present application.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

As described in the background art, for glass inspection after glass tempering coating and screen printing, the existing glass defect inspection method is to detect defects of the glass surface, screen printing, coating and edges by different devices independently, so that multiple persons are required to maintain different devices, the personnel management cost is increased, and the multiple devices occupy large space and have complex construction environment.

In order to solve the above-described problems, according to an aspect of the present application, there is provided a glass defect detecting apparatus 10 for detecting glass 30 conveyed along a conveying line 20, as shown in fig. 1 to 2 and 6 to 7, the glass defect detecting apparatus 10 including a main control device 100, a frame 200, and an edge defect detecting device 300 and a face defect detecting device 400 sequentially provided on the frame 200 in a conveying direction of the glass 30 (shown by an arrow V in fig. 6 and 7). The edge defect detecting device 300 includes two visual detecting modules 310 disposed on opposite sides of the conveying line 20, and the two visual detecting modules 310 are used for detecting edge defects on opposite sides of the glass 30 on the conveying line 20 in the conveying direction. The face defect detecting device 400 is used for detecting surface defects, silk screen defects and coating defects of the glass 30 on the conveying line 20. The main control device 100 is communicatively connected (wired or wireless) to the edge defect detecting device 300 and the face defect detecting device 400, and the main control device 100 is used for analyzing and processing data detected by the edge defect detecting device 300 and the face defect detecting device 400.

In the embodiment of the present application, the glass defect detecting device 10 uses the main control device 100 to analyze and process the data detected by the edge defect detecting device 300 and the face defect detecting device 400 by arranging the edge defect detecting device 300 and the face defect detecting device 400 on the same frame 200, that is, the glass defect detecting device 10 integrates the surface, the screen printing, the coating and the edge defect of the glass 30, the occupied space of the device is small, the construction environment is simpler, and the personnel management cost is reduced.

It can be understood that, when the glass defect detecting device 10 works, edge defects of the glass 30 are detected first, then surface defects, screen defects and film defects are detected, after the image data of the glass 30 detected by the edge defect detecting device 300 and the surface defect detecting device 400 are transmitted to the main control device 100, the main control device 100 analyzes and processes the image data of the glass 30 to obtain defect grades (i.e. quality grades) of the glass 30, for example, the detected glass 30 can be classified into different types of finished products, such as defective products, reworked products and qualified products, etc., so that the different types of glass 30 can be subjected to subsequent corresponding classification processing.

The master control device 100 may analyze the data detected by the edge defect detecting device 300 and the face defect detecting device 400 by combining the traditional machine learning method, the deep learning method and the manual rule to obtain the quality result of the current glass 30, analyze and count the detected defect data (defect position, size, etc.), display the whole result on the display interface by using the data table, and highlight the exceeding item (for example, display by using the highlighting color), where the master control device 100 has a display for displaying the defect information of the analysis and statistics, so that the staff can more intuitively see the defect condition of the glass 30. In addition, the master control apparatus 100 can also provide rich device communication interfaces, and can seamlessly interface with devices such as field wire control and industrial robots. In one implementation, the master device 100 includes a processor (model may take the form of KLD-GVLQ-V1), an industrial server (model may take the form of Intel (R) Silver4210RCPU@2.4HZ/32G, 64-bit operating system), a display, a mouse, a signal interface platform (model may take the form of KLD-XHTT-V1), and so forth.

In one embodiment, as shown in fig. 3, the visual inspection module 310 in the edge defect inspection device 300 includes a housing 311, an area camera 312, and an illumination light source 313, wherein a gap 3111 for passing an edge of glass (not shown) on a conveying line (not shown) is provided on a side of the housing 311 near the conveying line (not shown), the area camera 312 is disposed in the housing 311 and is used for collecting image data of the edge of the glass in the gap 3111, and the illumination light source 313 is disposed in the housing 311 and is used for providing illumination for the edge of the glass in the gap 3111.

The shell 311 is used as a carrier for mounting the surface array camera 312 and the illumination light source 313, and the surface array camera 312 mainly collects the image information of the edge of the glass and sends the image information to the main control device; the main function of the illumination source 313 is to increase the brightness of the edge of the glass, form an imaging effect beneficial to image processing, reduce the complexity of a vision system and the requirements on an image processing algorithm, and ensure the stability of an image.

In a specific embodiment, referring to fig. 3, the visual inspection module 310 includes three area cameras 312, and the three area cameras 312 are used to collect image data of the edge of the glass in the gap 3111 from different directions.

Through the arrangement, the detection positions (namely the edges of the glass) can be subjected to multi-angle and multi-position image acquisition, so that the main control device can conveniently and well judge and classify defects.

Specifically, three area cameras 312 may be arranged around the gap 3111 to enable image data of the edge of the glass in the gap 3111 to be acquired from different directions, respectively.

Further, three illumination light sources 313 in each visual inspection module 310 are also provided, and the three illumination light sources 313 respectively correspond to the three area array cameras 312.

In some embodiments, as shown in fig. 2 and 3, the edge defect detecting device 300 further includes two linear modules 320, the two linear modules 320 are disposed on the rack 200, the two visual detecting modules 310 are respectively disposed on the two linear modules 320, and the two visual detecting modules 310 can move in opposite directions or in opposite directions in the width direction of the conveying line under the driving of the two linear modules 320.

The two linear modules 320 are utilized to drive the two visual detection modules 310 to move in opposite directions or in opposite directions in the width direction of the conveying line, so that various production line widths can be flexibly applied, the distance between the two visual detection modules 310 is adjusted according to the actual size of glass to be detected, and the two visual detection modules are applicable to glass edge defect detection of different specifications, and the application range is enlarged.

It will be appreciated that the conveying direction of the conveyor line is along its own length direction, the width direction of the conveyor line being the direction perpendicular to the conveying direction.

Specifically, the linear module 320 may be of a synchronous belt type, a ball screw type, or a linear motor type, and in one implementation, the linear module 320 is of a ball screw type, and the housing 311 of the visual inspection module 310 is fixed on a sliding table screwed on a screw in the ball screw type linear module.

In one embodiment, as shown in fig. 4, 5 and 7, the facial defect detecting device 400 includes a line camera 410, a transmission light source 420 and a reflection light source 430 provided on the frame 200, the line camera 410 and the reflection light source 430 being located above the glass 30 on the conveyor line 20, and the transmission light source 420 being located below the glass 30 on the conveyor line 20.

The light emitted from the transmission light source 420 passes through the glass 30 to form transmission light, the light emitted from the reflection light source 430 irradiates the upper surface of the glass 30 and is reflected to form reflection light, and the line camera 410 is used for collecting image data formed by the transmission light and the reflection light on the surface of the glass 30.

The transmissive light source 420 is mainly directed to shading defects such as bubbles, internal stones, internal foreign matters, and the like. The reflective light source 430 is mainly directed to reflective defects such as open bubbles, radiation damage, unevenness, pattern deformation, and the like.

Specifically, LA-08K may be used for the linear camera 410, KLD-TBF3W-6P3500-V3.0 may be used for the transmissive light source 420, and KLD-F3W-4P3500-V3.0 may be used for the reflective light source 430.

In a specific embodiment, as shown in fig. 4 and 5, the facial defect detecting device 400 includes two line cameras 410, and the two line cameras 410 are adjustable in pitch in the width direction of the conveyor line; and/or the number of the groups of groups,

the face defect detecting device 400 includes two reflection light sources 430, and the two reflection light sources 430 are used to illuminate the glass 30 on the conveying line from different directions, respectively.

The two line cameras 410 can adjust the distance according to the line width, and are flexibly applicable to various line widths, and the two line cameras 410 are installed in parallel to remove partially overlapped field areas and meet the requirement of maximum field width. It is understood that the facial defect detecting device 400 can also expand the number of line cameras 410 to meet the detection requirement of a wider production line.

In one implementation, the facial defect detecting device 400 includes two line cameras 410, a transmission light source 420 and two reflection light sources 430, so that multiple angles and multiple positions of optical illumination are performed on the detection positions through multiple optical channels, the optical effects of comprehensive visual angles, abundant features and obvious details are formed, meanwhile, multiple light sources supplement each other, information features are acquired through multiple channels for unified analysis, and defects can be classified and identified more accurately.

In the embodiment of the glass defect inspection apparatus 10, as shown in fig. 1 and 4, the rack 200 includes two stand columns 210 disposed at intervals and a plurality of connection beams 220 connected between the two stand columns 210, the plurality of connection beams 220 being disposed at different heights of the stand columns 210. The respective components in the edge defect detecting device 300 and the face defect detecting device 400 are arranged on the connection beam 220.

In some embodiments, as shown in fig. 1 and 6-7, the glass defect detecting apparatus 10 further includes a position sensor 600, the position sensor 600 is disposed on the frame 200 through the bracket 500, the position sensor 600, the edge defect detecting device 300 and the face defect detecting device 400 are sequentially disposed along the conveying direction of the conveying line 20, the position sensor 600 is communicatively connected to the main control device 100, and when the glass 30 passes the position sensor 600, the main control device 100 controls the edge defect detecting device 300 and the face defect detecting device 400 to operate.

As shown in connection with fig. 8, the entire glass defect detection apparatus 10 operates as follows: when the glass 30 passes through the position sensor 600 (e.g. a photoelectric sensor) under the conveying of the conveying line 20, the position sensor 600 transmits signals to the main control device 100, the main control device 100 gives an image capturing signal of an area camera and an image capturing signal of a linear camera (the image capturing signal of the linear camera is sent in a delayed manner), at this time, the area camera 312 in the vision detection module 310 starts to capture images and sends the images to the main control device 100, the main control device 100 identifies the images to obtain defect data of the glass 30, and the type and grade of the glass defects are determined by a software algorithm. The glass 30 is sent to the face defect detection device 400 after passing through the edge defect detection device 300, the line camera 410 receives the instruction to start drawing, and transmits the image to the main control device 100, the main control device 100 recognizes the image to obtain defect data of the glass 30, and the type and grade of the glass defect are determined by a software algorithm.

In one embodiment, as shown in FIGS. 1-2 and 6, the glass defect detection apparatus 10 further includes a chiller 700 for providing chilled water to each detection device to ensure that each detection device operates in a suitable temperature environment for a prolonged period of time.

According to another aspect of the present application, there is further provided a glass defect detection line, as shown in fig. 6 and 7, including a conveying line 20 and a glass defect detection apparatus 10 in any of the above embodiments, the conveying line 20 being used for conveying glass 30 to be detected, and the glass defect detection apparatus 10 being used for detecting glass 30 conveyed along the conveying line 20.

Since the glass defect detecting apparatus 10 of the above embodiment is used as the glass defect detecting apparatus, there are advantages and benefits of the glass defect detecting apparatus 10, and the description thereof will not be repeated.

In one embodiment, as shown in fig. 6 and 7, the conveyor line 20 includes a front conveyor line 21 and a rear conveyor line 22 disposed at intervals along the conveying direction, where it is understood that the distance between the front conveyor line 21 and the rear conveyor line 22 is smaller than the length of the glass 30 to be tested, so as to ensure that the glass 30 can be conveyed normally, the rack 200 is located between the front conveyor line 21 and the rear conveyor line 22, the output end of the front conveyor line 21 is abutted to the edge defect detecting device 300, and the input end of the rear conveyor line 22 is abutted to the face defect detecting device 400.

By the above arrangement, the arrangement between the conveyance line 20 and the glass defect detection apparatus 10 is facilitated.

According to yet another aspect of the present application, embodiments of the present application further provide a photovoltaic glass production line, including the glass defect detection apparatus in any one of the embodiments described above or the glass defect detection line in any one of the embodiments described above.

Because the photovoltaic glass production line adopts the glass defect detection device or the glass defect detection line in the embodiment, the photovoltaic glass production line also has the advantages and benefits brought by the glass defect detection device, and the description is omitted here. The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The foregoing examples merely represent several embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the application. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application shall be subject to the appended claims.

Claims

1. The glass defect detection equipment is used for detecting glass conveyed along a conveying line and is characterized by comprising a main control device, a rack, and an edge defect detection device and a face defect detection device which are sequentially arranged on the rack along the conveying direction of the glass;

2. The glass defect detection apparatus according to claim 1, wherein the visual inspection module includes a housing, an area camera and an illumination light source, a gap through which an edge of glass on the conveying line passes is provided on a side of the housing close to the conveying line, the area camera is disposed in the housing and is used for collecting image data of the edge of glass in the gap, and the illumination light source is disposed in the housing and is used for providing illumination for the edge of glass in the gap.

3. The glass defect detection apparatus according to claim 2, wherein the visual inspection module includes three of the area cameras for respectively acquiring image data of edges of glass in the opening from different directions.

4. The glass defect detection apparatus of claim 1, wherein the face defect detection device comprises a line camera, a transmission light source, and a reflection light source disposed on the frame, the line camera and the reflection light source being located above the glass on the conveyor line, and the transmission light source being located below the glass on the conveyor line.

5. The glass defect detecting apparatus according to claim 4, wherein the face defect detecting device includes two of the line cameras, the two line cameras being adjustable in pitch in a width direction of the conveying line; and/or the number of the groups of groups,

6. The glass defect detection apparatus according to any one of claims 1 to 5, wherein the edge defect detection device further comprises two linear modules, the two linear modules are disposed on the frame, the two vision detection modules are disposed on the two linear modules, respectively, and the two vision detection modules can move in opposite directions or in opposite directions in the width direction of the conveying line under the driving of the two linear modules.

7. The glass defect detection apparatus according to any one of claims 1 to 5, further comprising a position sensor provided on the frame by a bracket, the position sensor, the edge defect detection device and the face defect detection device being provided in this order along a conveying direction of the conveying line, the position sensor being communicatively connected to the main control device, the main control device controlling the operation of the edge defect detection device and the face defect detection device when glass passes the position sensor.

8. A glass defect inspection line comprising a conveyor line for conveying glass to be inspected and a glass defect inspection apparatus as claimed in any one of claims 1 to 7 for inspecting glass conveyed along the conveyor line.

9. The glass defect detection line of claim 8, wherein the conveyor line comprises a front conveyor line and a rear conveyor line arranged at intervals along a conveying direction, the frame is located between the front conveyor line and the rear conveyor line, an output end of the front conveyor line is abutted to the edge defect detection device, and an input end of the rear conveyor line is abutted to the face defect detection device.

10. A photovoltaic glass production line comprising a glass defect detection apparatus according to any one of claims 1 to 7 or a glass defect detection line according to any one of claims 8 to 9.