Ceramic membrane defect detection system based on visual detection technology

Abstract

The utility model provides a ceramic membrane defect detection system based on a visual inspection technology, and aims to solve the technical problem that in the prior art, when a ceramic membrane is selected, partial defective products exist in manually selected products. The system comprises: a conveyor line; the feeding assembly is arranged on one side of the conveying line and used for placing a to-be-detected ceramic membrane on the conveying line; a plurality of detection stations, wherein each detection station is provided with a camera; the processing platform is electrically connected with all the cameras through data lines and is used for analyzing and processing image information shot by the cameras; and the multiple recovery assemblies are arranged corresponding to the detection stations, each recovery assembly comprises an output mechanism, and the output mechanism is used for guiding the unqualified ceramic membranes out of the conveying line. According to the system, the ceramic diaphragms are detected and analyzed in all directions through the visual detection technology, then the ceramic diaphragms are classified according to the detection result, and the problem that defective products exist in selected products can be effectively solved.

Description

Technical Field

[0001] This utility model relates to a quality inspection system for ceramic membranes, specifically a ceramic membrane defect detection system based on visual inspection technology. Background Technology

[0002] During the production of ceramic diaphragms, the surface and interior of some diaphragms may be affected, leading to functional defects. Currently, to eliminate these defects, manual sorting is used to classify them during the initial production phase.

[0003] Manual sorting involves high inspection intensity, the sorted products are greatly affected by human and environmental factors, and some defective products still flow to the next process, resulting in low yield and waste of raw materials in the next process. Utility Model Content

[0004] To address the technical problem that some defective products still exist in the manually selected ceramic diaphragm products in existing technologies, this utility model provides a ceramic diaphragm defect detection system based on visual inspection technology. Through visual inspection technology, the ceramic diaphragm is comprehensively inspected and analyzed, and then classified according to the inspection results, which can effectively eliminate the problem of defective products in the selected products.

[0005] The technical solution of this utility model is:

[0006] A ceramic film defect detection system based on visual inspection technology includes:

[0007] Conveyor line;

[0008] A feeding assembly, located on one side of the conveyor line, is used to place the ceramic film to be tested onto the conveyor line;

[0009] Multiple inspection stations, each equipped with a camera;

[0010] The processing platform is electrically connected to all the cameras via data cables and is used to analyze and process the image information captured by the cameras;

[0011] Multiple recycling components are provided, corresponding to the testing station. Each recycling component includes an output mechanism for exporting unqualified ceramic membranes to the conveyor line.

[0012] Optionally, the conveyor line includes multiple conveyor belts arranged in sequence, the inspection station is located between two adjacent conveyor belts, and a recycling component is provided downstream of the inspection station.

[0013] Optionally, the conveyor line is equipped with four inspection stations and three recycling components, and a finished product collection component is provided at the end of the conveyor line.

[0014] Optionally, the recycling component includes:

[0015] The drive unit is located on a horizontal plane, with one end positioned between two adjacent conveyor belts, and the drive unit is perpendicular to the conveyor belts.

[0016] A lifting unit is provided at the bottom of the driving unit and is used to drive the driving unit to move up and down;

[0017] The driving unit is an output mechanism.

[0018] Optionally, the structure of the finished product collection component is the same as that of the recycling component.

[0019] Optionally, the feeding assembly includes:

[0020] The storage bin contains several ceramic films to be tested.

[0021] A robotic arm having a gripping part and a moving part, wherein the gripping part can grip a ceramic membrane to be tested, and the moving part can drive the gripping part to rotate and move up and down.

[0022] Optionally, one of the inspection stations is equipped with a 3D camera.

[0023] Optionally, position sensors are installed before and after each of the testing stations.

[0024] Optionally, the processing platform includes a vision algorithm module and a PLC processor. The vision algorithm module is electrically connected to the camera, and the processing result of the vision algorithm module is fed back to the PLC processor. The PLC processor is electrically connected to the recycling component and the conveyor line.

[0025] Optionally, each of the testing stations is equipped with an encoder and a photoelectric switch to cooperate with the conveyor belt to measure the length of the ceramic film to be tested;

[0026] The camera is an area scan camera.

[0027] Compared with the prior art, the beneficial effects of this utility model are:

[0028] The ceramic membrane to be tested is placed on the conveyor line by the feeding component. The conveyor line transports the ceramic membrane and makes it pass through all the testing stations in sequence. At the testing station, the external structural features of the ceramic membrane are photographed by a camera and compared with existing data in the processing platform. Qualified ceramic membranes go to the next testing station along the conveyor line, while unqualified ceramic membranes are recycled by the recycling component.

[0029] This technical solution can effectively eliminate the problem of defective products among the selected products. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the structure of this utility model. Detailed Implementation

[0032] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0033] The following disclosure provides many different embodiments or examples for implementing various structures of this invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0034] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0035] Example:

[0036] See Figure 1 This embodiment discloses a ceramic film defect detection system based on visual inspection technology, including a conveyor line 10, a loading assembly 20, inspection stations 31, 32, 33, and 34, a processing platform, and recycling components 41, 42, and 43. The conveyor line 10 is used to transport the ceramic film 50 to be inspected, and the loading assembly 20 is located on the side of one end of the conveyor line 10 and is used to place the ceramic film 50 to be inspected onto the conveyor line 10.

[0037] Multiple inspection stations 31, 32, 33, and 34 are sequentially arranged along the conveying direction of the conveyor line 10. Each inspection station 31, 32, 33, and 34 inspects different features of the ceramic membrane 50. Each inspection station 31, 32, 33, and 34 is equipped with a camera to acquire image features of the ceramic membrane 50. The images are then analyzed and processed within a processing platform to derive the corresponding structure, which is then fed back. Therefore, the processing platform is electrically connected to the cameras in all inspection stations 31, 32, 33, and 34.

[0038] Multiple recycling components 41, 42, and 43 are also provided on the conveyor line 10. The output mechanism of the recycling components 41, 42, and 43 will lead the unqualified ceramic membranes 50 out of the conveyor line 10 and recycle them to different positions according to the different defect characteristics of the ceramic membranes 50, thereby classifying ceramic membranes 50 with the same defect characteristics.

[0039] In this embodiment, the ceramic membrane 50 to be tested is placed on the conveyor line 10 by the feeding component 20. The conveyor line 10 transports the ceramic membrane 50 and allows it to pass through all the testing stations 31, 32, 33, and 34 in sequence. At each testing station 31, 32, 33, and 34, the external structural features of the ceramic membrane 50 are photographed by a camera and compared with existing data in the processing platform. Qualified ceramic membranes 50 proceed to the next testing station along the conveyor line 10, while unqualified ceramic membranes 50 are recycled by the recycling components 41, 42, and 43.

[0040] This technical solution can effectively eliminate the problem of defective products among the selected products.

[0041] In one specific embodiment:

[0042] The conveyor line 10 includes multiple conveyor belts 11 arranged in sequence. All conveyor belts 11 have the same conveying direction and are connected end to end in sequence, so that the ceramic membrane 50 can move on all conveyor belts 11.

[0043] Each of the above-mentioned inspection stations 31, 32, 33, and 34 is respectively set between two adjacent conveyor belts 11, and there are at least two conveyor belts 11 between adjacent inspection stations 31, 32, 32, 33, 33, and 34.

[0044] Meanwhile, recycling components 41, 42, and 43 are also installed downstream of testing stations 31, 32, 33, and 34.

[0045] Specifically, conveyor line 10 is equipped with four inspection stations 31, 32, 33, and 34, and three recycling units 41, 42, and 43. Along the conveying direction of conveyor line 10:

[0046] The first inspection station 31 is used to inspect the ceramic membrane 50 for defects such as cracks and holes that penetrate both sides of the ceramic membrane 50. A recycling component 41 is set downstream of the inspection station 31, and a conveyor belt 11 is set between the recycling component 41 and the inspection station 31.

[0047] The second inspection station 32 is used to inspect surface defects on both sides of the ceramic membrane 50, such as scratches and indentations. The third inspection station 33 is used to inspect defects on the four sides of the ceramic membrane 50, such as the radius (R) corners. A recycling component 42 is provided downstream of the third inspection station 33. This recycling component 42 is used to recycle the ceramic membrane 50 that fails the inspection at the second inspection station 32 or the third inspection station 33.

[0048] The fourth inspection station 34 is used to inspect the three-dimensional dimensions of the entire ceramic membrane 50, and a recycling component 43 is set after this inspection station 34 to recycle ceramic membranes 50 that do not meet the three-dimensional dimension requirements. Therefore, a 3D camera is equipped in this inspection station 34 to acquire three-dimensional data.

[0049] Finally, a finished product collection component 60 is provided at the end of the conveyor line 10, which is used to collect qualified ceramic membranes 50.

[0050] In this technical solution, various external defects of the ceramic membrane 50 are detected, and ceramic membranes 50 with the same defects are collected by multiple recycling components 41, 42, and 43, so as to achieve rapid and comprehensive detection. At the same time, ceramic membranes 50 with the same defects collected by recycling components 41, 42, and 43 can be quickly classified and recycled.

[0051] In another specific embodiment:

[0052] The recycling components 41, 42, and 43 include a drive unit and a lifting unit. The drive unit is disposed between two adjacent conveyor belts 11 and is normally located below the horizontal plane of the conveyor belts 11. The drive unit includes a belt structure, the length of which is also arranged along the horizontal plane and is horizontally positioned with respect to the conveyor belts 11.

[0053] A robotic arm is provided at the other end of the drive unit to grab the defective ceramic film 50 on the drive unit and transfer the defective ceramic film 50 to the designated position.

[0054] The lifting unit is located below the drive unit and is used to drive the drive unit to move up and down in the vertical direction.

[0055] In this embodiment, when the detection stations 31, 32, 33, and 34 detect a defective ceramic membrane 50, the processing platform controls the lifting unit to drive the driving unit to rise. After the defective ceramic membrane 50 moves to this point, the driving unit drives the ceramic membrane 50 away from the conveyor belt 11. Therefore, the driving unit is the output mechanism of the recycling components 41, 42, and 43.

[0056] Preferably, the lifting unit includes a lifting cylinder or a hydraulic cylinder. Furthermore, the structure of the finished product collection assembly 60 described above is the same as that of the recycling assemblies 41, 42, and 43.

[0057] In another specific embodiment:

[0058] The feeding assembly 20 includes a storage bin and a robotic arm. The storage bin contains several ceramic films 50 to be tested, and all the ceramic films 50 to be tested are stacked in the storage bin.

[0059] The robotic arm has a gripping part and a moving part. The gripping part can grip the ceramic film 50 in the storage bin, and the moving part can drive the gripping part to rotate and lift, so that after the gripping part moves to the conveyor line 10, it places the ceramic film 50 on the conveyor line 10.

[0060] In another specific embodiment:

[0061] Each of the testing stations 31, 32, 33, and 34 is equipped with a position sensor before and after it. The position sensor can feed back the position information of the ceramic membrane 50 on the conveyor line 10 to the processing platform, and the processing platform can make corresponding judgments, such as continuing to convey the ceramic membrane 50 to the next process by the conveyor line 10, or recycling the ceramic membrane 50 by the recycling components 41, 42, and 43.

[0062] In another specific embodiment:

[0063] The processing platform includes a vision algorithm module and a PLC processor. The vision algorithm module is electrically connected to the camera, and the processing results of the vision algorithm module are fed back to the PLC processor. The PLC processor is electrically connected to the recycling components 41, 42, and 43 and the conveyor line 10. The algorithm module analyzes and processes the image information captured by the camera and feeds back the analyzed structure to the PLC processor. Generally, the structure information is either "NG" (not qualified) or "OK" (qualified). When the PLC processor receives an "NG" message, it controls the recycling components 41, 42, and 43 to recycle the ceramic membrane 50. If the PLC processor receives an "OK" message, it controls the conveyor line 10 to release the ceramic membrane 50.

[0064] In another specific embodiment:

[0065] Each testing station 31, 32, 33, and 34 is equipped with an encoder and a photoelectric switch. The length of the ceramic membrane 50 can be calculated by setting the encoder and photoelectric switch. The principle is that timing starts when one end of the ceramic membrane 50 passes the photoelectric switch and stops when the other end of the ceramic membrane 50 passes the photoelectric switch. Then, combined with the speed of the conveyor line 10, the length of the ceramic membrane 50 is calculated.

[0066] Since the area array camera has a limited shooting range, after calculating the length of the ceramic film 50, the number of photos required for the camera to capture the entire ceramic film 50 can be estimated.

[0067] The embodiments described above merely illustrate specific implementations of this utility model, and while the descriptions are detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A ceramic membrane defect detection system based on visual inspection technology, characterized by, The application relates to a ceramic membrane detection device. The device comprises a conveying line, a feeding assembly arranged on one side of the conveying line and used for placing ceramic membranes to be detected on the conveying line, a plurality of detection stations, each of which is equipped with a camera, a processing platform electrically connected with all the cameras through data lines and used for analyzing and processing image information captured by the cameras, and a plurality of recycling assemblies corresponding to the detection stations, wherein the recycling assembly comprises an output mechanism used for guiding unqualified ceramic membranes out of the conveying line. The conveying line comprises a plurality of conveying belts arranged in sequence, the detection stations are arranged between two adjacent conveying belts, and a recycling assembly is arranged downstream of the detection stations. The conveying line is arranged with four detection stations and three recycling assemblies, and an end of the conveying line is provided with a finished product collecting assembly. The recycling assembly comprises a driving part arranged on a horizontal plane and located between two adjacent conveying belts, and the driving part is vertically distributed with the conveying belts; and a lifting part arranged at the bottom of the driving part and used for driving the driving part to lift. The driving part is the output mechanism.

2. The ceramic membrane defect detection system based on visual inspection technology according to claim 1, characterized in that, The structure of the finished product collecting assembly is the same as that of the recycling assembly.

3. The ceramic membrane defect detection system based on visual inspection technology according to claim 2, characterized in that, The feeding assembly comprises a storage box with a plurality of ceramic membranes to be detected placed inside, a mechanical arm with a grabbing part and a moving part, the grabbing part can grab the ceramic membranes to be detected, and the moving part can drive the grabbing part to rotate and lift.

4. The ceramic membrane defect detection system based on visual inspection technology according to claim 3, characterized in that, One of the detection stations is configured with a 3D camera. Position sensors are arranged in front of and behind each detection station. The processing platform comprises a visual algorithm module and a PLC processor, the visual algorithm module is electrically connected with the cameras, the processing result of the visual algorithm module is fed back to the PLC processor, and the PLC processor is electrically connected with the recycling assemblies and the conveying line. An encoder and a photoelectric switch are arranged on each detection station and used for measuring the length of the ceramic membranes to be detected in cooperation with the conveying belts.

5. The ceramic membrane defect detection system based on visual inspection technology according to claim 4, characterized in that, The camera is a plane array camera.

6. The ceramic membrane defect detection system based on visual inspection technology according to claim 1, characterized in that, ​ ​ ​ 7. The ceramic membrane defect detection system based on visual inspection technology according to claim 1, characterized in that, ​ 8. The ceramic membrane defect detection system based on visual inspection technology according to claim 1, characterized in that, ​ 9. The ceramic membrane defect detection system based on visual inspection technology according to claim 1, characterized in that, ​ 10. The ceramic membrane defect detection system based on visual inspection technology according to claim 2, wherein, ​ ​

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