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CN-116952945-B - System and method for inspecting and analyzing defects of strip steel post-processing line products

CN116952945BCN 116952945 BCN116952945 BCN 116952945BCN-116952945-B

Abstract

The application relates to the technical field of intelligent manufacturing, in particular to a system and a method for inspecting and analyzing defects of a strip steel post-treatment line product, comprising a strip steel conveying line; the detection zone is arranged on the conveying path and comprises a first detection zone and a second detection zone, the second detection zone is positioned at the rear end of the first detection zone, polishing equipment is arranged in the first detection zone, the data acquisition system comprises a first image acquisition unit, the first image acquisition unit is positioned on the conveying path between the polishing equipment and the second detection zone, and the defect diagnosis system is connected with the data acquisition system and used for obtaining defect diagnosis results and displaying and/or conveying the defect diagnosis results. The application can improve the relevance of the data in different detection projects and the diagnosis results, so as to facilitate the real-time adjustment of the detection projects, reduce the waste of detection resources, effectively avoid the conditions of repeated detection, missed detection and the like, effectively reduce the detection cost and improve the overall efficiency of defect diagnosis.

Inventors

  • XU XIUFEI
  • Du dongpo
  • AN YANG

Assignees

  • 中冶赛迪上海工程技术有限公司

Dates

Publication Date
20260512
Application Date
20230525

Claims (13)

  1. 1. The defect inspection and analysis system for the strip steel post-treatment line product is characterized by comprising the following components: The strip steel conveying line is used for conveying strip steel to be detected along a conveying path; the detection area is arranged on the conveying path and comprises a first detection area for automatically detecting defects and a second detection area for manually detecting the defects, the second detection area is positioned at the rear end of the first detection area, and polishing equipment is arranged in the first detection area; The data acquisition system comprises a first image acquisition unit, wherein the first image acquisition unit is positioned on the conveying path between the polishing equipment and the second detection area; The defect diagnosis system is connected with the data acquisition system and is used for processing the data acquired by the data acquisition system according to a preset data processing mode to obtain a defect diagnosis result and displaying and/or transmitting the defect diagnosis result; The strip steel to be detected is horizontally conveyed in the first detection area, a liftable horizontal table top is arranged below the polishing equipment, a felt laying mechanism is arranged in the first detection area and comprises a reel and a winch which are respectively arranged on two sides of the horizontal table top, and a felt positioned above the horizontal table top, one end of the felt is connected with the winch and is tensioned by the winch, the other end of the felt is connected with the reel and rotates along with the reel, and the felt is laid on the horizontal table top or is wound on the reel through rotating the reel.
  2. 2. The strip steel post-processing line product defect inspection analysis system of claim 1, wherein the defect diagnosis system comprises: The data input module is used for receiving to-be-diagnosed data of the to-be-detected strip steel, the to-be-diagnosed data comprise at least one of to-be-diagnosed images and to-be-diagnosed production data, the to-be-diagnosed production data comprise a plurality of to-be-diagnosed sub-data, and the to-be-diagnosed images comprise images acquired by the data acquisition system; The defect identification module is used for identifying the image to be diagnosed and comparing the sub-data to be diagnosed with preset standard sub-data to obtain a data qualification state of each sub-data to be diagnosed; The knowledge base is used for storing a plurality of preset defect reasons, a plurality of preset diagnosis results and corresponding relations between the preset defect reasons and the preset diagnosis results; The defect cause determining module is used for determining a defect cause according to at least one of the defect image and abnormal data, wherein the abnormal data comprises sub-data to be diagnosed, and the data qualification state of the sub-data is disqualification; and the defect diagnosis module is used for inquiring the knowledge base according to the defect reasons to obtain the diagnosis result of the strip steel to be detected.
  3. 3. The strip steel post-processing line product defect inspection analysis system according to claim 2, wherein if the image to be diagnosed is obtained from strip steel to be inspected before polishing, the defect identification module is used for carrying out image fusion on surface images of the strip steel before polishing, which are collected under different illumination states, to obtain a fusion image, identifying each crystal flower in the fusion image, determining the initial crystal flower size of each crystal flower, determining the uniformity degree of the crystal flowers and the crystal flower representation size according to the difference condition of the initial crystal flower sizes of all crystal flowers, and determining crystal flower quality data of the strip steel to be inspected based on at least one of the uniformity degree of the crystal flowers, the crystal flower representation size and the crystal flower number, wherein the crystal flower number is the number of the crystal flowers identified in the fusion image.
  4. 4. The strip steel post-processing line product defect inspection analysis system according to claim 1, wherein the data acquisition system further comprises a second image acquisition unit, and the second image acquisition unit is located on the conveying path at the front end of the polishing device and is used for acquiring images of the strip steel to be inspected before polishing.
  5. 5. The system for inspecting and analyzing defects of a steel strip post-processing line product according to claim 1, wherein a start end of the steel strip conveying line is connected with a steel strip production line, a first information connection path is arranged between the defect diagnosis system and the steel strip production line, and the defect diagnosis system acquires production parameter information of the steel strip to be inspected from the steel strip production line through the first information connection path and is used as an influencing factor of the defect diagnosis result.
  6. 6. The system for inspecting and analyzing defects of a strip steel post-processing line product according to claim 1, wherein a second information connection passage is arranged between the defect diagnosis system and the second detection area, and the second detection area utilizes the second information connection passage to at least acquire a defect diagnosis result of the strip steel to be inspected, which is sent by the defect diagnosis system.
  7. 7. The strip steel post-processing line product defect inspection analysis system according to claim 1, wherein the polishing equipment comprises a polishing end head arranged above the horizontal table top and a second driving assembly for driving the polishing end head to lift and horizontally move, the second driving assembly comprises a first horizontal moving part for driving the polishing end head to move in a direction parallel to the conveying direction of the strip steel to be inspected, and a second horizontal moving part for driving the polishing end head to move in a direction perpendicular to the conveying direction of the strip steel to be inspected, and the first horizontal moving part and the second horizontal moving part are matched to enable the polishing end head to move on a horizontal plane in different tracks.
  8. 8. The strip steel post-processing line product defect inspection analysis system according to claim 7, wherein two first horizontal moving parts are arranged, the two first horizontal moving parts are respectively positioned at two sides of a conveying path of the strip steel to be inspected, the second driving assembly further comprises a telescopic part connected between the two first horizontal moving parts, the telescopic part is hinged with the first horizontal moving parts at two ends, the second horizontal moving parts are connected with the telescopic part, and each first horizontal moving part independently drives one end of the telescopic part to move.
  9. 9. The strip steel post-processing line product defect inspection and analysis system according to claim 7, wherein the polishing head is magnetically connected with the second horizontal moving member.
  10. 10. A method for inspecting and analyzing defects of a product of a strip steel post-processing line, which is applied to the system for inspecting and analyzing defects of a product of a strip steel post-processing line according to any one of claims 1 to 6, and comprises the steps of: conveying the strip steel to be detected along the conveying path, and carrying out defect detection on the strip steel to be detected in the first detection area, wherein the defect detection comprises surface polishing; the data acquisition system acquires defect data of the strip steel to be detected, records position information for acquiring the defect data, and sends the defect data and the corresponding position information to the defect diagnosis system; the defect diagnosis system performs defect diagnosis based on the defect data to obtain a defect diagnosis result; The defect diagnosis system displays and/or transmits diagnosis information to a preset receiving end so as to guide the receiving end to execute defect countermeasure, wherein the diagnosis information comprises the defect diagnosis result and the position information.
  11. 11. The method according to claim 10, wherein the receiving end includes a first detection area, and the defect diagnosis system performs the specific steps of: The defect data comprise an initial surface image of the surface of the strip steel to be detected, wherein the initial surface image is an image shot after the surface of the strip steel to be detected is polished for the first time; And carrying out primary recognition on the initial surface image, and if the defect is recognized, generating suggested polishing information based on the defect position, so as to guide the defect position of the strip steel to be detected to be polished again in the first detection area through the suggested polishing information.
  12. 12. The method of claim 11, wherein after the first inspection zone is polished again, the method comprises: Acquiring a processed surface image of the surface of the strip steel to be detected; And the defect diagnosis system re-identifies the processed surface image to obtain a re-identification result so as to finish defect diagnosis of the defect position.
  13. 13. The method according to claim 10, wherein the receiving end comprises the second detection area, and the second detection area re-detects the strip to be detected based on the defect diagnosis result after the defect diagnosis system displays and/or transmits the defect diagnosis result to a preset receiving end.

Description

System and method for inspecting and analyzing defects of strip steel post-processing line products Technical Field The invention relates to the technical field of intelligent manufacturing, in particular to a system and a method for inspecting and analyzing defects of a strip steel post-treatment line product. Background The strip steel generally refers to strip products produced by continuous production lines, such as hard rolled plates, cold rolled plates, plating plates and the like in the steel industry, has high requirements on product quality, and has no shape and position defects and other defects visible to the naked eye on the surface layer, and has no defects hidden under the surface layer or extremely tiny and invisible to the naked eye, so that a plurality of detection needs to be carried out before the strip steel is taken off line, and the strip steel production is gradually automated and intelligent along with the development of intelligent manufacturing technology. In the prior art, strip steel can be continuously conveyed from production to offline through a conveying line formed by continuous rollers and other equipment, a large number of manual detection stations or automatic equipment detection stations are required to be arranged on the conveying line to meet the strip steel defect detection requirement in the continuous conveying process, and the existing strip steel conveying and detection processes have at least the following defects that the large number of manual detection stations and automatic equipment detection stations are independently detected according to preset actions, so that on one hand, the labor, equipment and energy consumption cost is greatly improved, on the other hand, the detection stations are independently detected, real-time correlation is not available between detection results, and the detection actions are difficult to be purposefully adjusted based on the existing detection results, so that multiple detection, missing detection, invalid detection and the like occur, and the overall efficiency of strip steel detection is low, and the cost is high. Disclosure of Invention In view of the above drawbacks of the prior art, the present invention aims to provide a system and a method for inspecting and analyzing defects of a strip steel post-processing line product, which are used for solving the problems that in the prior art, the strip steel inspection mode is that each inspection station is used for independent inspection, the cost of labor, equipment and energy consumption is high, real-time correlation is lacking among inspection results, the inspection actions are difficult to be adjusted pertinently based on the existing inspection results, and the situations of multiple inspection, omission inspection, invalid inspection and the like are easy to occur. To achieve the above and other related objects, in a first aspect, the present application provides a system for inspecting and analyzing defects of a strip steel post-processing line product, comprising: The strip steel conveying line is used for conveying strip steel to be detected along a conveying path; the detection area is arranged on the conveying path and comprises a first detection area for automatically detecting defects and a second detection area for manually detecting the defects, the second detection area is positioned at the rear end of the first detection area, and polishing equipment is arranged in the first detection area; The data acquisition system comprises a first image acquisition unit, wherein the first image acquisition unit is positioned on the conveying path between the polishing equipment and the second detection area; The defect diagnosis system is connected with the data acquisition system and is used for processing the data acquired by the data acquisition system according to a preset data processing mode to obtain a defect diagnosis result and displaying and/or transmitting the defect diagnosis result. Further, the defect diagnosis system includes: The data input module is used for receiving to-be-diagnosed data of the to-be-detected strip steel, the to-be-diagnosed data comprise at least one of to-be-diagnosed images and to-be-diagnosed production data, the to-be-diagnosed production data comprise a plurality of to-be-diagnosed sub-data, and the to-be-diagnosed images comprise images acquired by the data acquisition system; The defect identification module is used for identifying the image to be diagnosed and comparing the sub-data to be diagnosed with preset standard sub-data to obtain a data qualification state of each sub-data to be diagnosed; The knowledge base is used for storing a plurality of preset defect reasons, a plurality of preset diagnosis results and corresponding relations between the preset defect reasons and the preset diagnosis results; The defect cause determining module is used for determining a defect cause according to at least one of the defect image