CN109146869B - Galvanized wire strip steel galvanizing defect tracking method - Google Patents
Galvanized wire strip steel galvanizing defect tracking method Download PDFInfo
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- CN109146869B CN109146869B CN201810994319.9A CN201810994319A CN109146869B CN 109146869 B CN109146869 B CN 109146869B CN 201810994319 A CN201810994319 A CN 201810994319A CN 109146869 B CN109146869 B CN 109146869B
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- G06T7/0002—Inspection of images, e.g. flaw detection
- G06T7/0004—Industrial image inspection
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Abstract
The invention discloses a galvanized wire strip steel galvanizing defect tracking method, which comprises the following steps: when an operator marks the defects of the strip steel, recording the relative positions of the defects of the strip steel, and recording the position once when the same strip steel generates one defect; after the strip steel is off line, clearing all the positions of the strip steel; and measuring the linear speed of the strip steel and calculating the relative distance between each galvanizing defect and the air knife, the thickness gauge, the finisher, the straightener, the roll coater, the disc shear and the flying shear through an encoder and a computer system. The method for tracking the galvanizing defects of the strip steel of the galvanizing line records the defects of each strip steel, records the position of the strip steel, and calculates the defects and the relative positions of an air knife, a thickness gauge, a finishing machine, a straightener, a roll coater, a disc shear and a flying shear after the defects are detected, so that related equipment can act to avoid the defects before the defects arrive, the strip steel defects cannot damage the equipment, and the interference of the defects on the equipment is reduced.
Description
Technical Field
The invention relates to the technical field of material tracking of continuous hot galvanizing lines, in particular to a method for tracking galvanizing defects of strip steel of a galvanizing line.
Background
In the galvanizing process, due to the problems of strip steel raw materials, buckling deformation and large difference of galvanizing thickness can occur after the strip steel is taken out of a zinc pot, the unsmooth strip steel can damage subsequent equipment such as air knives, thickness measuring, finishing and straightening machine rollers, and the defect has great influence on the quality of finished products. Therefore, once a defect is generated, it is critical to protect the in-line device and to improve yield by tracking its location and processing it.
Disclosure of Invention
The invention aims to provide a galvanized defect tracking method for strip steel of a galvanized wire, which is used for recording the defect of each strip steel, recording the position of the strip steel, and calculating the defect and the relative positions of an air knife, a thickness gauge, a finishing machine, a straightening machine, a roll coating machine, a disc shear and a flying shear after the defect, so that related equipment can act to avoid the defect before the defect comes, the strip steel defect cannot damage the equipment, the interference of the defect on the equipment is reduced, and the problems in the prior art are solved.
In order to achieve the purpose, the invention provides the following technical scheme: a galvanized wire strip steel galvanizing defect tracking method comprises the following steps:
s1: an operator marks the defects of the strip steel and simultaneously records the relative positions of the defects of the strip steel;
s2: recording the position of the same strip steel once when a defect is generated;
s3: after the strip steel is off line, clearing all the positions of the strip steel;
s4: measuring the linear speed of the strip steel and calculating the relative distance between each galvanizing defect and an air knife, a thickness gauge, a finishing machine, a straightener, a roll coater, a disc shear and a flying shear through an encoder and a computer system;
s5: the relative positions of the strip steel defects and the relative distances between the strip steel defects are stored in arrays;
s6: the relative distance of the nearest defect before an air knife, a thickness gauge, a finishing machine, a straightener, a roll coater, a disc shear and a flying shear is displayed through a picture;
s7: when the relative distance changes from a negative value to zero, the defect is close to the equipment from far to near;
s8: when the strip steel defect passes through the equipment, displaying the distance between the next defect and the equipment, and if no defect exists, displaying a zero value;
preferably, the relative positions of the strip defects are recorded by an industrial camera according to S1.
Preferably, according to S4, the computer system includes a processing module 1, an a/D conversion module 2, a data storage module 3, a display module 4, and a human-computer interaction module 5, where the a/D conversion module 2 is connected to the processing module 1 through a line, the processing module 1 is connected to the display module 4 through a line, and both the data storage module 3 and the human-computer interaction module 5 are connected to the processing module 1 through a line.
Preferably, the processing module 1 is configured to process the data input by the a/D conversion module 2 in a summary manner.
Preferably, the a/D conversion module 2 is configured to receive a numerical signal input by an encoder and an industrial camera.
Preferably, the data storage module 3 uses the built-in hard disk 31 to store the relative position of the defect image and the relative distance data of the calculated defect image recorded by the processing module 1.
Preferably, the display module 4 displays a picture of the numerical value of the relative distance between the defects output by the processing module 1 by using the display screen 41.
Preferably, the human-computer interaction module 5 controls the shooting and recording of the industrial camera and the real-time updating of the numerical value by using a keyboard and mouse peripheral 51.
Preferably, the human-computer interaction module adopts a keyboard and mouse peripheral to control the shooting and recording of the industrial camera and the real-time updating of numerical values.
Compared with the prior art, the invention has the beneficial effects that:
according to the method for tracking the galvanizing defects of the strip steel of the galvanizing line, an operator can see the defect condition generated after the strip steel comes out of a zinc pot on a display screen, the operators of an intermediate operation chamber, a leveling operation chamber and an outlet operation chamber start an industrial camera through the peripheral equipment of an operation key mouse, monitor the defects and the distances among an air knife, a thickness gauge, a finishing machine, a straightener, a roll coater, a disc shear and a flying shear in real time, and determine whether to act equipment to avoid the defects of the strip steel according to the defect condition; therefore, damage to the equipment caused by the defects and the interference of the equipment is greatly avoided, and the probability of belt breakage caused by the defects and the interference of the equipment is greatly reduced.
Drawings
FIG. 1 is a flow chart of a method of the present invention;
FIG. 2 is a block diagram of a computer system of the present invention;
FIG. 3 is a schematic diagram of the recording of defects in a strip steel according to the present invention.
In the figure: 1. a processing module; 2. an A/D conversion module; 3. a data storage module; 31. a built-in hard disk; 4. a display module; 41. a display screen; 5. a human-computer interaction module; 51. and (5) peripheral mouse keys.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, a method for tracking galvanizing defects of strip steel of a galvanizing line includes the following steps:
s1: an operator marks the defects of the strip steel and simultaneously records the relative positions of the defects of the strip steel;
s2: recording the position of the same strip steel once when a defect is generated;
s3: after the strip steel is off line, clearing all the positions of the strip steel;
s4: measuring the linear speed of the strip steel and calculating the relative distance between each galvanizing defect and an air knife, a thickness gauge, a finishing machine, a straightener, a roll coater, a disc shear and a flying shear through an encoder and a computer system;
s5: the relative positions of the strip steel defects and the relative distances between the strip steel defects are stored in arrays;
s6: the relative distance of the nearest defect before an air knife, a thickness gauge, a finishing machine, a straightener, a roll coater, a disc shear and a flying shear is displayed through a picture;
s7: when the relative distance changes from a negative value to zero, the defect is close to the equipment from far to near;
s8: when the strip steel defect passes through the equipment, displaying the distance between the next defect and the equipment, and if no defect exists, displaying a zero value;
the computer system comprises a processing module 1, an A/D conversion module 2, a data storage module 3, a display module 4 and a human-computer interaction module 5, wherein the A/D conversion module 2 is connected with the processing module 1 through a line, the processing module 1 is connected with the display module 4 through a line, and the data storage module 3 and the human-computer interaction module 5 are both connected with the processing module 1 through lines; the processing module 1 is used for summarizing and processing data input by the A/D conversion module 2; the A/D conversion module 2 is used for receiving numerical value signals input by the encoder and the industrial camera; the data storage module 3 adopts a built-in hard disk 31 to store the relative position of the defect image recorded by the processing module 1 and calculate the relative distance data of the defect image; the display module 4 adopts the display screen 41 to display the numerical value picture of the relative distance of the defect output by the processing module 1; the man-machine interaction module 5 adopts a keyboard and mouse peripheral 51 to control the shooting and recording of the industrial camera and real-time updating of numerical values; the man-machine interaction module adopts a keyboard and mouse peripheral to control the shooting and recording of the industrial camera and the real-time updating of numerical values.
According to the method for tracking the galvanizing defects of the strip steel of the galvanizing line, an operator can see the defect condition generated after the strip steel comes out of a zinc pot on a display screen 41, the operator in an intermediate operation chamber, a leveling operation chamber and an outlet operation chamber starts an industrial camera through an operation key mouse peripheral 51, monitors the defects and the distances among an air knife, a thickness gauge, a finishing machine, a straightener, a roll coater, a disc shear and a flying shear in real time, and determines whether to act equipment to avoid the defects of the strip steel according to the defect condition; therefore, damage to the equipment caused by the defects and the interference of the equipment is greatly avoided, and the probability of belt breakage caused by the defects and the interference of the equipment is greatly reduced.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. A galvanized wire strip steel galvanizing defect tracking method is characterized by comprising the following steps:
s1: an operator marks the defects of the strip steel and simultaneously records the relative positions of the defects of the strip steel;
s2: recording the position of the same strip steel once when a defect is generated;
s3: after the strip steel is off line, clearing all the positions of the strip steel;
s4: measuring the linear speed of the strip steel and calculating the relative distance between each galvanizing defect and an air knife, a thickness gauge, a finishing machine, a straightener, a roll coater, a disc shear and a flying shear through an encoder and a computer system;
s5: the relative positions of the strip steel defects and the relative distances between the strip steel defects are stored in arrays;
s6: the relative distance of the nearest defect before an air knife, a thickness gauge, a finishing machine, a straightener, a roll coater, a disc shear and a flying shear is displayed through a picture;
s7: when the relative distance changes from a negative value to zero, the defect is close to the equipment from far to near;
s8: and after the strip steel defect passes through the equipment, displaying the distance between the next defect and the equipment, and if no defect exists, displaying a zero value.
2. The galvanized steel strip galvanizing defect tracking method according to claim 1, wherein the S1 records the relative positions of the strip defects and is recorded by an industrial camera.
3. The galvanized wire strip steel galvanizing defect tracking method according to claim 1, characterized in that the S4 computer system comprises a processing module (1), an A/D conversion module (2), a data storage module (3), a display module (4) and a human-computer interaction module (5), wherein the A/D conversion module (2) is connected with the processing module (1) through a line, the processing module (1) is connected with the display module (4) through a line, and the data storage module (3) and the human-computer interaction module (5) are connected with the processing module (1) through a line.
4. The method for tracking the galvanizing defects of the galvanized wire strip steel according to the claim 3, characterized in that the processing module (1) is used for summarizing and processing the data input by the A/D conversion module (2).
5. The method for tracking the galvanizing defects of the galvanized wire strip steel according to claim 3, characterized in that the A/D conversion module (2) is used for receiving numerical signals input by an encoder and an industrial camera.
6. The method for tracking the galvanizing defects of the galvanized wire strip steel according to the claim 3, characterized in that the data storage module (3) adopts a built-in hard disk (31) to store the relative positions of the defect images recorded by the processing module (1) and calculate the relative distance data of the defect images.
7. The method for tracking the galvanizing defects of the galvanized wire strip steel according to the claim 3, characterized in that the display module (4) adopts a display screen (41) to display a numerical picture of the relative distance of the defects output by the processing module (1).
8. The galvanized wire strip steel galvanizing defect tracking method according to claim 3, characterized in that the human-computer interaction module (5) controls shooting and recording of an industrial camera and real-time updating of numerical values by a keyboard and mouse peripheral (51).
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| CN111695765A (en) * | 2020-04-30 | 2020-09-22 | 首钢京唐钢铁联合有限责任公司 | Monitoring method, device and system for product quality of galvanizing production line |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102699028A (en) * | 2012-02-24 | 2012-10-03 | 宝山钢铁股份有限公司 | Method for eliminating linear edge defects of hot-rolled low-carbon steel |
| CN203992589U (en) * | 2014-08-25 | 2014-12-10 | 北京京诚之星科技开发有限公司 | Edge-cutting circle shear opening degree locking mechanism |
| CN107784323A (en) * | 2017-10-16 | 2018-03-09 | 武汉科技大学 | Steel strip surface defect image classification method based on local uncorrelated constraint |
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- 2018-08-29 CN CN201810994319.9A patent/CN109146869B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102699028A (en) * | 2012-02-24 | 2012-10-03 | 宝山钢铁股份有限公司 | Method for eliminating linear edge defects of hot-rolled low-carbon steel |
| CN203992589U (en) * | 2014-08-25 | 2014-12-10 | 北京京诚之星科技开发有限公司 | Edge-cutting circle shear opening degree locking mechanism |
| CN107784323A (en) * | 2017-10-16 | 2018-03-09 | 武汉科技大学 | Steel strip surface defect image classification method based on local uncorrelated constraint |
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