CN110658200A - Edge sealing effect detection method and device for plate - Google Patents
Edge sealing effect detection method and device for plate Download PDFInfo
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- CN110658200A CN110658200A CN201910773289.3A CN201910773289A CN110658200A CN 110658200 A CN110658200 A CN 110658200A CN 201910773289 A CN201910773289 A CN 201910773289A CN 110658200 A CN110658200 A CN 110658200A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/8851—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/8851—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges
- G01N2021/8887—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges based on image processing techniques
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Abstract
The invention discloses a method for detecting edge sealing effect of a plate, which comprises the following steps: acquiring first plate image information through a first image sensor, wherein the first plate image information comprises a first plate surface image and a banding area image; acquiring second plate image information through a second image sensor, wherein the second plate image information comprises a second plate surface image, and the second plate surface image comprises a laser projection line projected on the plate surface; the first plate image information and the second plate image information are image information of the same plate; and performing plate defect early warning on the acquired image information. The invention also discloses an electronic device and a computer readable storage medium. According to the edge sealing effect detection method for the plate, the purpose of simultaneously detecting various different defects can be achieved by adopting a mode of matching laser projection and image identification, and the edge sealing detection efficiency and the edge sealing detection effect of the plate are greatly improved.
Description
Technical Field
The invention relates to the field of machine vision and image processing, in particular to a method and a device for detecting edge sealing effect of a plate.
Background
At present, a plurality of plate furniture are provided with edge sealing, so that the friction of wood on bodies can be reduced, and the effect of attractive decoration is achieved, and the edge sealing process of the plates is finished by an edge sealing machine.
The edge bonding machine is one of woodworking machines, and is used for bonding edges as the name suggests. The edge bonding machine can complete various processes of conveying, gluing, cutting, front and back aligning, up and down trimming, up and down fine trimming, up and down edge scraping, polishing and the like in straight-surface edge bonding.
The edge bonding machine has unstable conditions in the production process, and has problems like a flush link, and the cutting of the cutting unit is unstable, so that the phenomena of cutting damage, irregularity, protrusion and the like occur, and the defects of oblique cutting, overlong cutting, gouging and the like of the edge bonding belt of the plate can be caused; the defects of gaps, pinholes, glue failure and the like of the plate can occur due to poor glue supply of the edge banding machine or poor glue spraying of the glue spraying unit, which causes the edge banding to break or not to glue; problems occur in the upper and lower trimming links of the edge bonding machine, the edge of the plate is high due to the fact that the edge of the plate is higher than the surface of the plate in the trimming process of the milling cutter, and the edge of the plate is white scraped or edge burst due to the fact that the edge of the plate is lower than the surface of the plate in the trimming process of the milling cutter; excessive overflow of glue of the edge bonding machine or the problem of the polishing process can cause the residual glue of the plate.
The defects of plate edge sealing caused by abnormal conditions in the production process of the existing edge sealing machine are mainly found by manual online inspection or manual inspection. Under the unattended condition of automatic production, probably because the machine breaks down and causes panel banding defect, if discover untimely, can produce the defect product in succession, when appearing in low reaches process, can only carry out the processing of doing over again to the defect product, abandon even, cause material and artifical extravagant, bring the loss.
Disclosure of Invention
In order to overcome the defects of the prior art, one of the objectives of the present invention is to provide a method for detecting edge sealing effect of a sheet material, which can detect edge sealing effect of the sheet material more quickly.
The present invention is also directed to an electronic device, which can detect the edge sealing effect of a sheet material more quickly.
The invention also aims to provide a computer readable storage medium which can realize the detection of the edge sealing effect of the plate more quickly.
One of the purposes of the invention is realized by adopting the following technical scheme:
a method for detecting edge sealing effect of a plate comprises the following steps:
a first acquisition step: acquiring first plate image information through a first image sensor, wherein the first plate image information comprises a first plate surface image and a banding area image;
a second acquisition step: acquiring second plate image information through a second image sensor, wherein the second plate image information comprises a second plate surface image, and the second plate surface image comprises a laser projection line projected on the plate surface;
early warning step: and performing plate defect early warning on the acquired image information.
Further, the first image sensor is a line camera, and the first acquiring step specifically includes: and directly acquiring an edge banding area image through the linear array camera and acquiring a first plate surface image through the reflector.
Further, the linear array camera is used for shooting linear array pictures at a fixed frequency on the front side of the edge sealing belt and the surface of the plate, and the linear array pictures are one-dimensional linear pictures; the linear array camera is also used for sending a linear array picture to the image processor; the image processor is used for splicing the received linear array pictures into a complete image.
Furthermore, an included angle between the plane of the reflector and the plane of the surface of the plate is any angle between 30 and 60 degrees.
Further, the second image sensor is an area-array camera, and the second acquiring step specifically includes: acquiring a second plate surface image through a second image sensor, wherein the second plate surface image comprises a laser projection line projected on the plate surface; the laser projection line is formed by vertically emitting surface type laser emitted by a laser emitter to the surface of the plate.
Further, the laser projection line is emitted by the laser emitter and then reflected to the surface of the plate through the reflector group; the laser emitter is used for emitting a fan-shaped laser surface to the reflector component;
the reflector assembly comprises a primary reflector and a secondary reflector;
the laser emitter is horizontally arranged relative to the surface of the plate; the primary reflector is configured to be obliquely arranged relative to the laser line emitted by the laser emitter, so that the laser line emitted by the laser emitter is emitted onto the primary reflector at a certain inclination angle to vertically project the laser line onto the surface of the plate;
the secondary reflector is configured to be obliquely arranged relative to the primary reflector and the surface of the plate; the area array camera is used for shooting laser projection lines formed on the surface of the plate sequentially through the primary reflector and the secondary reflector.
Furthermore, the area array camera assembly is used for shooting laser projection lines formed on the surface of the plate through a primary reflector and a secondary reflector in sequence at fixed frequency to further obtain area array pictures, and transmitting all the area array pictures to an image processor, wherein the image processor is used for analyzing the laser projection lines in a plurality of area array pictures, so that a plurality of laser projection lines are spliced into a laser three-dimensional picture.
Further, the early warning step comprises the following steps:
respectively extracting a first plate surface image and a banding area image in the first plate image information;
judging whether the edge sealing belt area image has defects or not, if so, early warning the defects of the plate, and if not, performing the next step;
judging whether the image on the surface of the first plate has defects, if so, performing plate defect early warning, and if not, performing the next step;
and extracting all laser line shapes in the second plate image information, combining all laser lines to form a plate surface three-dimensional image, judging whether the plate surface has the defects of edge height and white scraping, if so, early warning the plate defect, and if not, early warning.
Further, the method also comprises the data generation step of: and generating a management report according to the acquired early warning data, the date corresponding to the early warning data and the machine parameters so as to supply the management report to a manufacturer for production analysis.
Further, before the first acquiring step, the method further comprises the opening step of: when a signal sent by the photoelectric sensor is received, the opening is controlled to detect the edge sealing effect of the plate to be detected at the detection position.
Further, the method also comprises the closing step: and when the signal sent by the photoelectric sensor is stopped being received, the first image sensor and the second image sensor are controlled to be closed.
The second purpose of the invention is realized by adopting the following technical scheme:
an electronic device comprises a memory, a processor and a computer program stored on the memory and capable of running on the processor, wherein the processor executes the computer program to implement the edge banding effect detection method for a plate material.
The third purpose of the invention is realized by adopting the following technical scheme:
a computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, implements a method of edge banding detection for a sheet material as claimed in any one of the objects of the present invention.
Compared with the prior art, the invention has the beneficial effects that:
according to the edge sealing effect detection method for the plate, the purpose of simultaneously detecting various different defects can be achieved by adopting a mode of matching laser projection and image identification, and the edge sealing detection efficiency and the edge sealing detection effect of the plate are greatly improved.
Drawings
Fig. 1 is a flowchart of a method for detecting an edge sealing effect of a plate according to a first embodiment;
fig. 2 is a specific flowchart of a method for detecting an edge sealing effect of a plate according to a first embodiment;
fig. 3 is a specific flowchart of image recognition in the edge banding effect detection method for a sheet material according to the first embodiment;
FIG. 4 is a block diagram of the edge banding defect inspection apparatus of the present invention;
FIG. 5 is an enlarged view of portion A of FIG. 4;
FIG. 6 is a block diagram of an edge banding defect inspection apparatus for sheet material at another angle in accordance with the present invention;
FIG. 7 is a block diagram of an edge banding defect inspection apparatus for sheet material at another angle in accordance with the present invention;
FIG. 8 is an enlarged view of portion B of FIG. 7;
fig. 9 is an enlarged view of a portion C in fig. 7.
Reference numerals:
11. a first image sensor; 12. a reflective mirror; 13. a light source;
21. a second image sensor; 22. a laser transmitter; 23. a mirror assembly; 231. a primary reflector; 232. a secondary mirror;
30. a detection box; 301. a light transmission detection window; 3021. a first correlation sensor; 3022. a second correlation sensor; 31. a first detection box; 32. a second detection box;
80. a transfer assembly;
90. a plate material; 91. the front surface of the banding area.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict.
Example one
As shown in fig. 1 and fig. 2, the embodiment provides a method for detecting an edge sealing effect of a plate, including the following steps:
s0: when a signal sent by the photoelectric sensor is received, the opening is controlled to detect the edge sealing effect of the plate to be detected at the detection position. The step mainly comprises the steps of controlling opening and closing instructions, and when the edge sealing of the plate is finished, the plate is transmitted into a detection window of the detection box 30 by a conveyor belt, namely, the plate enters a light transmission detection window 301; the method comprises the steps of taking a picture of a panel through a camera, analyzing the picture by using an image processing technology, and judging whether the defects of edge sealing belt beveling, overlong edge sealing belt, gaps, pinholes, glue failure, high edge, white scraping, edge blasting and the like exist. But if the camera is left in operation at all times, a large amount of unnecessary data is consumed. Therefore, photoelectric sensors are arranged at the detection windows, namely two correlation sensors are used for detecting whether plates enter or not; when the edge sealing of the plate is finished, the plate enters the detection window to trigger the first correlation sensor 3021 and the second correlation sensor 3022, and the two pairs of sensors control the two cameras to take pictures. The specific structure of the edge sealing defect detecting device for the plate material mentioned in the embodiment is shown in fig. 4, 5, 6, 7, 8 and 9.
S1: acquiring first plate image information through a first image sensor 11, wherein the first plate image information comprises a first plate surface image and a banding area image; in this step, the first image sensor 11 may be a line camera or an area camera, and in this embodiment, a line camera is preferably used for shooting.
In this embodiment, preferably, the first image sensor 11 is a line camera, and the first acquiring step specifically includes: the image of the edge banding area is directly obtained by the line camera and the image of the surface of the first plate is obtained by the reflector 12. And an included angle between the plane of the reflective mirror 12 and the plane of the surface of the plate is 45 degrees. Therefore, the image information of two vertical surfaces can be acquired by directly adopting one linear array camera, the cost is further reduced, and a mode that two linear array cameras respectively acquire two surfaces can be adopted when the method is implemented.
The linear array camera is used for shooting linear array pictures at a fixed frequency on the front side of the edge sealing belt and the surface of a plate, and the linear array pictures are one-dimensional linear pictures; the linear array camera is also used for sending a linear array picture to the image processor; the image processor is used for splicing the received linear array pictures into a complete image. In addition to the above manner, the line camera is further configured to stitch the received line pictures into a complete image, and send the image to the image processor. As can be known from the explanation of the above step, the step is mainly to acquire complete image information, and in this embodiment, the first plate image information may include images of the upper surface and the edge sealing area of the plate; and may also include images of the lower surface of the sheet material and the sealed edge regions. When the line camera is adopted, the light source 13 is also required to be arranged in a matched manner to provide light with higher brightness, so that a clearer picture is shot.
S2: acquiring second plate image information through a second image sensor 21, wherein the second plate image information comprises a second plate surface image, and the second plate surface image comprises a laser projection line projected on the plate surface; the second image sensor 21 is an area-array camera, and the second acquiring step specifically includes: acquiring a second plate surface image through a second image sensor 21, wherein the second plate surface image comprises a laser projection line projected on the plate surface; the laser projection line is formed by the surface laser emitted by the laser emitter 22 and emitted to the surface of the sheet material at a certain inclination angle relative to the surface of the sheet material. In this step, the image information on the surface of the plate is obtained in the same way, but in this embodiment, the laser projection line is also obtained, and the analysis of the laser projection line directly has a faster processing speed than the analysis of the image; because the step is to process the information such as whether the edge height exists or not, the white scraping and the like, the mode of setting the laser projection line according to the characteristics to carry out the matching identification is adopted, and the detection efficiency is greatly improved.
Specifically, the laser projection line is emitted from the laser emitter 22 and then reflected to the surface of the plate by the reflector group; the laser emitter 22 is used for emitting a fan-shaped laser plane to the reflecting mirror assembly 23;
the mirror assembly 23 includes a primary mirror 231 and a secondary mirror 232;
the laser emitter 22 is horizontally arranged relative to the surface of the sheet material; the primary reflector 231 is configured to be inclined with respect to the laser line emitted from the laser emitter 22, so that the laser line emitted from the laser emitter 22 is incident on the primary reflector 231 at an inclined angle to vertically project the laser line onto the surface of the plate material; the secondary reflecting mirror 232 is disposed to be inclined with respect to the primary reflecting mirror 231 and the surface of the plate material; the area array camera is used for shooting laser projection lines formed on the surface of the plate sequentially through the primary reflector and the secondary reflector. The two-stage reflector is adopted to increase the optical path, so that the projection line can be long enough, the space of the device can be further compressed, and if the direct projection mode is adopted, the distance between the laser and the surface of the plate is relatively large, so that the whole structure of the device is larger. By adopting the mode of primary reflection, the optical path can be increased, and the device is smaller. In this embodiment, when the laser is projected onto the surface of the plate, the camera performs oblique shooting by adopting a vertical projection mode. If the laser line is projected obliquely, the projected line becomes thicker, and the measurement accuracy is affected. For example, a 45 degree angle is formed between the camera and the surface of the sheet material, so that the image can be more clearly shown when the image is subjected to edge height or white scraping.
The area array camera assembly is used for shooting laser projection lines formed on the surface of the plate at a fixed frequency to obtain area array pictures, and transmitting all the area array pictures to the image processor, and the image processor is used for analyzing the laser projection lines in a plurality of area array pictures to splice a plurality of laser projection lines into a laser three-dimensional picture. In this embodiment, it is preferable that the area-array camera acquires an image of the lower surface of the plate. Most preferably, the area-array camera and the line-array camera are used for acquiring images of different plate surfaces, two detection boxes are arranged, when the line-array camera is used for acquiring the upper surface and edge sealing information of the plate in the first detection box 31, and the area-array camera is used for acquiring the lower surface and edge sealing information of the plate, the two detection boxes are correspondingly arranged in the second detection box 32 in an opposite manner. Therefore, the plate can be subjected to corresponding defect detection in one-time pass.
S3: and performing plate defect early warning on the acquired image information. When the corresponding image is acquired, the image needs to be further analyzed to determine whether there is a defect. As shown in fig. 3, the step S3 includes the following steps:
respectively extracting a first plate surface image and a banding area image in the first plate image information;
judging whether a joint of the first plate and the edge sealing band has defects or not, if so, early warning the defects of the plate, and if not, performing the next step; this step is mainly to carry out defect analysis to first panel and edge sealing band laminating, and first panel and edge sealing band laminating mainly can have gap, pinhole, the problem such as split. There are two main possibilities of poor edge sealing, one is poor glue supply, which results in the edge strips not being glued. The other condition is that the glue spraying unit sprays glue poorly, which causes the edge banding to be stripped or not glued. When such a problem is detected, an early warning is given.
Judging whether the edge sealing belt area has defects or not, if so, carrying out edge sealing belt defect early warning, and if not, carrying out the next step; the defects in the step mainly include beveling of the edge sealing band, overlong edge sealing band and gouging of the edge sealing band: and a head-flush link and the like. The problems are mainly caused by the phenomena of cutting damage, irregularity, protrusion and the like caused by unstable sawing of the sawing unit. When such information is detected, it is subjected to defect warning.
And extracting all laser line shapes in the second plate image information, combining all laser lines to form a plate surface three-dimensional image, judging whether the plate surface has the defects of edge height and white scraping, if so, early warning the plate defect, and if not, early warning. Edge height, white scraping and edge blasting, namely the problem of the upper and lower trimming links, wherein the edge height is higher than the surface of the plate in the milling cutter trimming process, and the white scraping and edge blasting are lower than the surface of the plate in the milling cutter trimming process.
For the linear array camera image, firstly, the position range of the edge sealing belt and the position range of the surface of the plate are extracted, and then the two ranges are respectively detected. Detecting whether the edge sealing band is open or not, whether the front end and the rear end of the edge sealing band are inclined or not and are overlong in the edge sealing band range, and finally detecting whether the edge sealing band is damaged or not; the surface range of the plate detects whether the edge sealing belt leaves the plate surface to form glue failure, the edge sealing belt is not tightly attached to the plate surface to form a gap and a pinhole, residual glue exists between the plate surface and the edge sealing belt due to overlong glue spraying, and the plate surface is scratched and cracked due to overlow milling cutters.
For the image of the area-array camera, the shape height of a laser line is extracted from each image, all the laser lines are combined into a three-dimensional surface image of the plate, whether the surface is flat or not is judged, if the edge chamfer angle of the plate is too large, white scraping exists, and if the edge is too high, the edge sealing band edge height exists.
In addition to the above-mentioned defect detection, further analysis of the data is required, in order to better guide and plan future production.
S4: and generating a management report according to the acquired early warning data, the date corresponding to the early warning data and the machine parameters so as to supply the management report to a manufacturer for production analysis. And the server counts the detection result and displays the result on a data billboard for reference of production managers. The method is beneficial to helping manufacturers to analyze the frequency and the period of the occurrence of machine faults, improve the production flow and improve the production efficiency.
The specific working principle of this embodiment is as follows:
the plate 90 is transmitted to the light transmission detection window 301 through the transmission assembly 80, the start and stop of the image sensors are controlled through the two opposite sensors, namely the first opposite sensor 3021 and the second opposite sensor 3022, when the opposite sensors detect that the plate is detected, the linear array camera is controlled to shoot pictures right at the side face (the front face 91 of the edge sealing band) of the plate according to the fixed frequency, each frame of picture is a straight line, the direction of each frame of picture is perpendicular to the movement direction of the plate, all the straight line pictures are spliced into a complete image after the shooting is stopped, and the complete image is analyzed and processed by the processor to judge whether the edge sealing appearance defect exists. A word laser line shines on the panel lower surface perpendicular to panel direction of motion after reflector 12 reflects, and when the shape of panel lower surface changed, the shape of laser line also can follow and change, and area array camera is taken a picture according to fixed frequency and is analyzed the laser line shape, and the post processor that stops taking a picture splices a plurality of laser line shapes into three-dimensional picture, analyzes three-dimensional picture shape, judges whether there is profile defect such as limit height or white scraping.
Two pairs of correlation sensors trigger and stop two cameras after the picture transmits the treater to, and the treater is handled the image, judges whether there is the defect panel banding, and if there is the defect, equipment sends alarm signal and reminds production line staff to go to handle to send the testing result to the server, the server statistics shows on the data billboard behind the testing result, supplies production managers to refer to.
The invention can detect the edge sealing quality of the plate on line in real time, and the two linear array cameras are used for collecting images, so that the visual field range covers the front surface of the edge sealing belt and the upper and lower surfaces of the connecting part of the plate and the edge sealing belt, and the appearance defects of edge sealing belt beveling, overlong edge sealing belt, edge sealing belt gouge, gaps, pinholes, adhesive failure, residual adhesive, edge explosion and the like can be detected. The area-array camera is matched with the linear laser line, the appearance shapes of the upper surface and the lower surface of the plate are detected by utilizing the laser triangulation principle, and whether the edge sealing belt is higher than or lower than the surface of the plate is judged, so that whether the appearance defects such as edge height, white scraping and the like exist is detected. Through online real-time automatic detection, can replace artifical the work of patrolling and examining, in time discover banding quality problems and send the warning, the at utmost reduces continuous production and causes serious loss.
Example two
The second embodiment discloses an electronic device, which comprises a processor, a memory and a program, wherein the processor and the memory can adopt one or more programs, the program is stored in the memory and is configured to be executed by the processor, and when the processor executes the program, the edge banding effect detection method for the plate material in the first embodiment is realized. The electronic device may be a series of electronic devices such as a mobile phone, a computer, a tablet computer, and the like.
EXAMPLE III
The third embodiment discloses a computer-readable storage medium, which is used for storing a program, and when the program is executed by a processor, the method for detecting the edge sealing effect of the plate material in the first embodiment is realized.
Of course, the storage medium provided by the embodiment of the present invention contains computer-executable instructions, and the computer-executable instructions are not limited to the method operations described above, and may also perform related operations in the method provided by any embodiment of the present invention.
From the above description of the embodiments, it is obvious for those skilled in the art that the present invention can be implemented by software and necessary general hardware, and certainly, can also be implemented by hardware, but the former is a better embodiment in many cases. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which may be stored in a computer-readable storage medium, such as a floppy disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a FLASH Memory (FLASH), a hard disk or an optical disk of a computer, and includes instructions for enabling an electronic device (which may be a personal computer, a server, or a network device) to execute the methods according to the embodiments of the present invention.
It should be noted that, in the embodiment of the content-based update notification apparatus, the included units and modules are merely divided according to functional logic, but are not limited to the above division as long as the corresponding functions can be implemented; in addition, specific names of the functional units are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present invention.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.
Claims (10)
1. The edge sealing effect detection method for the plate is characterized by comprising the following steps of:
a first acquisition step: acquiring first plate image information through a first image sensor, wherein the first plate image information comprises a first plate surface image and a banding area image;
a second acquisition step: acquiring second plate image information through a second image sensor, wherein the second plate image information comprises a second plate surface image, and the second plate surface image comprises a laser projection line projected on the plate surface; the first plate image information and the second plate image information are image information of the same plate;
early warning step: and performing plate defect early warning on the acquired image information.
2. The method for detecting the edge banding effect of the plate material as claimed in claim 1, wherein the first image sensor is a line camera, and the first obtaining step specifically comprises: and directly acquiring an edge banding area image through the linear array camera and acquiring a first plate surface image through the reflector.
3. The edge banding effect detection method of a plate as claimed in claim 2, wherein said line camera is used for taking a line image at a fixed frequency to the front side of the edge banding area and the surface of the plate, said line image being a one-dimensional linear image; the linear array camera is also used for sending a linear array picture to the image processor; the image processor is used for splicing the received linear array pictures into a complete image; the included angle between the plane of the reflector and the plane of the surface of the plate is any angle between 30 and 60 degrees.
4. The method for detecting the edge banding effect of the plate material as claimed in claim 1, wherein the second image sensor is an area-array camera, and the second acquiring step specifically comprises: acquiring a second plate surface image through a second image sensor, wherein the second plate surface image comprises a laser projection line projected on the plate surface; the laser projection line is formed by vertically emitting surface laser emitted by a laser emitter to the surface of the plate; the laser projection line is reflected to the surface of the plate through a reflector component after being emitted by the laser emitter; and the laser emitter is used for emitting a fan-shaped laser surface to the reflector component.
5. The method of claim 4, wherein the mirror assembly comprises a primary mirror and a secondary mirror;
the laser emitter is horizontally arranged relative to the surface of the plate; the primary reflector is configured to be obliquely arranged relative to the laser line emitted by the laser emitter, so that the laser line emitted by the laser emitter is emitted onto the primary reflector at a certain inclination angle to vertically project the laser line onto the surface of the plate;
the secondary reflector is configured to be obliquely arranged relative to the primary reflector and the surface of the plate; the area array camera is used for shooting laser projection lines formed on the surface of the plate sequentially through the primary reflector and the secondary reflector.
6. The edge banding effect detection method of claim 5, wherein said area array camera is used for shooting laser projection lines formed on the surface of said plate sequentially through a primary reflector and a secondary reflector at a fixed frequency to obtain an area array picture, and transmitting all the area array pictures to an image processor, said image processor is used for analyzing the laser projection lines in a plurality of area array pictures, thereby splicing a plurality of laser projection lines into a laser three-dimensional picture.
7. The method for detecting the edge sealing effect of the plate as claimed in claim 1, wherein the early warning step comprises the following steps:
respectively extracting a first plate surface image and a banding area image in the first plate image information;
judging whether the edge sealing belt area image has defects or not, if so, early warning the defects of the plate, and if not, performing the next step;
judging whether the image on the surface of the first plate has defects, if so, performing plate defect early warning, and if not, performing the next step;
and extracting all laser line shapes in the second plate image information, combining all laser lines to form a plate surface three-dimensional image, judging whether the plate surface has the defects of edge height and white scraping, if so, performing plate defect early warning, and if not, not performing early warning.
8. The edge banding effect detection method of claim 7, further comprising a data generation step: generating a management report according to the acquired early warning data, the date corresponding to the early warning data and the machine parameters so as to supply the management report to a manufacturer for production analysis;
before the first acquiring step, the method also comprises the following starting step: when a signal sent by the photoelectric sensor is received, controlling to start the edge sealing effect detection of the plate to be detected at the detection position;
further comprising a closing step: and when the signal sent by the photoelectric sensor is stopped being received, the first image sensor and the second image sensor are controlled to be closed.
9. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor executes the computer program to implement the edge banding effect detection method for a sheet material according to any one of claims 1 to 8.
10. A computer-readable storage medium having stored thereon a computer program, characterized in that: the computer program, when executed by a processor, implements a method of edge banding detection for a sheet of material as claimed in any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910773289.3A CN110658200B (en) | 2019-08-21 | 2019-08-21 | Method and device for detecting edge sealing effect of plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910773289.3A CN110658200B (en) | 2019-08-21 | 2019-08-21 | Method and device for detecting edge sealing effect of plate |
Publications (2)
| Publication Number | Publication Date |
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| CN110658200A true CN110658200A (en) | 2020-01-07 |
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| CN110579480A (en) * | 2019-08-21 | 2019-12-17 | 广州深路自动化科技有限公司 | panel banding defect detecting equipment |
| CN111702916A (en) * | 2020-06-17 | 2020-09-25 | 广州纬纶信息科技有限公司 | Automatic edge sealing method and device, soft forming edge sealing machine and storage medium |
| CN113298787A (en) * | 2021-05-25 | 2021-08-24 | 江门职业技术学院 | Plate edge sealing defect detection method, controller and computer readable storage medium |
| CN113920059A (en) * | 2021-09-08 | 2022-01-11 | 索菲亚家居股份有限公司 | Method, device, equipment and medium for controlling linear edge sealing plate |
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