CN214441859U - Hot rolling stainless steel strip steel lower surface defect detection device - Google Patents
Hot rolling stainless steel strip steel lower surface defect detection device Download PDFInfo
- Publication number
- CN214441859U CN214441859U CN202023302323.6U CN202023302323U CN214441859U CN 214441859 U CN214441859 U CN 214441859U CN 202023302323 U CN202023302323 U CN 202023302323U CN 214441859 U CN214441859 U CN 214441859U
- Authority
- CN
- China
- Prior art keywords
- stainless steel
- hot
- steel strip
- detection window
- defects
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model discloses a hot-rolled stainless steel strip steel lower surface defect detection device, which is characterized by comprising a lower surface detection chamber, an SDD device and a first blowing mechanism, wherein the lower surface detection chamber is arranged between a side introducing port of a coiling machine and a laminar cooling device; a plurality of roller ways are arranged above the lower surface detection chamber; the upper end of the lower surface detection chamber is provided with a detection window, the detection window is positioned at the lower part of the gap between the two adjacent rails, and a camera of the SDD device is arranged in the lower surface detection chamber and is aligned with the detection window and the gap between the two adjacent rails; the first blowing mechanism is arranged between the laminar flow cooling device and the detection window, and an outlet of a blowing nozzle of the first blowing mechanism points to a roller way at the laminar flow cooling device. The beneficial effects of the utility model are that combine the characteristics of the actual motion of hot rolling production line and equipment, avoid the interference of environment operating mode unfavorable factor, it is clear to shoot belted steel defect photo to carry out the analysis to shooting the photo, discern the defect position, satisfy the requirement of defect discernment.
Description
Technical Field
The utility model belongs to the technical field of hot rolling stainless steel surface defect detects, especially, relate to a hot rolling stainless steel strip steel surface defect detection device.
Background
Hot rolling refers to rolling steel above the crystallization temperature of the steel. Because the hot rolling energy consumption is lower, the metal plasticity is high, and the processing technology performance of the metal and the alloy is improved, the hot rolling is widely applied in the steel material production. The current hot rolling production line generally comprises a heating furnace, a roughing mill, a finishing mill, a laminar cooling device, a coiler and the like, wherein steel is conveyed among the heating furnace, the roughing mill, the finishing mill, the laminar cooling device and the coiler through a roller way. In a hot rolling line, a large number of steel slabs need to be extracted from a heating furnace and run through the entire hot rolling line to complete the production. Surface defects are important factors affecting the surface quality of cold-rolled strip steel and hot-rolled strip steel. The surface defect detection of the traditional cold-rolled strip steel and hot-rolled strip steel is mainly manual visual inspection by inspectors. This approach has a number of disadvantages: the detection result is easily influenced by subjective factors of detection personnel; can only be used for detecting the surface of the strip steel with slow running speed, and small defects are difficult to detect. In the last 70 th century, enterprises such as Japanese New day iron, thousand leaves, eight flag, song mountain and pine adopt a laser scanning surface defect monitoring system on the production lines of cold-rolled plating plates and electrical steel plates. In recent years, with the development of optical sensor technology, a CCD camera is adopted to continuously scan the surface of the strip steel, and then the scanned image is processed in real time through an image processing technology, so that the online detection and identification of the surface defect of the strip steel are realized, and the method is the most advanced and practical method in the field of online detection of the surface defect of the cold-rolled strip steel. In China, stainless steel production enterprises aim at the defects of the technical scheme, such as low defect detection rate, low detection speed, incapability of meeting the detection requirements of a high-speed production line, incapability of detecting stainless steel and the like, and optimize and improve the defects so as to meet the detection requirements of cold-rolled stainless steel.
For example, chinese patent application No. 201310564290.8, application No. 2013.11.14, application publication No. CN103645195A, application publication No. 2014.03.19, discloses a method for detecting the surface of cold-rolled steel based on vision, which includes the steps of collecting image information and position information of cold-rolled steel strip, template matching, pattern recognition to obtain alarm information, and combining the alarm information and the position information. The method has the advantages of high execution speed, high accuracy, stable performance and the like.
For another example, chinese patent application No. 201410225388.2, application No. 2014.05.26, application publication No. CN103995002A, application publication No. 2014.08.20, discloses a method for determining the level of inclusion defects on the surface of a cold-rolled stainless steel strip, which comprises the following steps: on-line quality inspectors take pictures of the surface of the stainless steel produced on line all the time through the on-line defect automatic detector, detect and track the occurrence amount of impurities on the surface of the stainless steel; the second step is that: when the quality inspectors find inclusions, the inclusion types are confirmed in time, and the third step is as follows: and the online quality inspector comprehensively analyzes and judges the occurrence grade of the defects and the application according to the confirmation condition and the distribution condition of the inclusions detected by the online defect automatic detector. The invention has the advantages that: the grade of the inclusion defects on the surface of the cold-rolled stainless steel strip can be qualitatively and quantitatively checked and judged by the method, high-quality stainless steel meeting the use requirements of the stainless steel can be configured for the cold-rolled stainless steel according to different purposes of various industries and the requirements of customers, the materials are exhausted under the existing smelting level, and the resource utilization is maximized.
The above patent application designs the application of defect detection on the upper surface of cold-rolled stainless steel strip, while hot-rolled stainless steel strip needs to detect the lower surface in addition to the upper surface, and the detection device on the upper surface of hot-rolled stainless steel strip cannot be directly applied to the detection of the lower surface. Therefore, in the prior art, the quality inspection of the lower surface of the hot-rolled stainless steel strip is performed by adopting a manual sampling inspection mode or roller unit sampling inspection cutting, and the defects that the hot-rolled coil is black, the surface defect is difficult to judge by manual inspection and easy to detect by mistake, and a large quantity of quality accidents are easy to happen by adopting a sampling inspection mode; the adopted roll unit sampling inspection cutting steel plate influences the actual yield.
SUMMERY OF THE UTILITY MODEL
1. Technical problem to be solved
Aiming at the quality inspection of the lower surface of the hot-rolled stainless steel strip steel in the prior art, a manual spot inspection mode or roll unit spot inspection cutting is mainly adopted, because the hot-rolled coil is black, the surface defect is difficult to judge by manual inspection and easy to detect by mistake, and meanwhile, the spot inspection mode is adopted, so that mass quality accidents are easy to happen; the roller unit selective examination cutting steel sheet of taking influences the real yield scheduling problem, the utility model aims to provide a hot rolling stainless steel belted steel lower surface defect detection device combines the characteristics of the actual motion of hot rolling production line and equipment, avoids the interference of environment operating mode adverse factor, and it is clear to shoot belted steel defect photo to carry out the analysis to shooting photo, discernment defect position satisfies the requirement of defect discernment.
2. Technical scheme
In order to achieve the above object, the above technical effects are achieved, the utility model adopts the following technical scheme:
the device for detecting the defects of the lower surface of the hot-rolled stainless steel strip steel is characterized by comprising a lower surface detection chamber, an SDD device and a first blowing mechanism, wherein the lower surface detection chamber is arranged between a side inlet of a coiler and a laminar cooling device; a plurality of roller ways are arranged above the lower surface detection chamber; the upper end of the lower surface detection chamber is provided with a detection window, the detection window is positioned at the lower part of the gap between the two adjacent rails, and the camera of the SDD device is arranged in the lower surface detection chamber and is aligned with the detection window and the gap between the two adjacent rails; the first blowing mechanism is arranged between the laminar flow cooling device and the detection window, and an outlet of a blowing nozzle of the first blowing mechanism points to a roller way at the laminar flow cooling device.
In a specific embodiment of the present invention, the first blowing mechanism is provided with a first speed control switch for adjusting the blowing rate according to the amount of cooling water of the laminar cooling apparatus.
In a specific embodiment of the present invention, the purging medium of the first purging mechanism is air.
In a specific embodiment of the present invention, the device for detecting defects on the lower surface of a hot-rolled stainless steel strip further comprises a second purging mechanism, the second purging mechanism is disposed on two sides of the adjacent roller table above the detection window, and a blowing nozzle of the second purging mechanism points to the lower surface of the strip steel; avoid because of the great partial water of leading to of the air-blowing intensity of first sweeping mechanism splash in detection window top.
In a specific embodiment of the present invention, the second purging mechanism is provided with a second speed control switch for adjusting the blowing rate according to the amount of cooling water of the laminar cooling device.
In a specific embodiment of the present invention, the purging medium of the second purging mechanism is air.
In a specific embodiment of the present invention, the device for detecting surface defects of hot-rolled stainless steel strip further comprises a third purging mechanism, the third purging mechanism is disposed between the detection window and the roller bed, and a blowing nozzle of the third purging mechanism is directed to the detection window.
The utility model discloses a specific embodiment, the third mechanism that sweeps sets up the third speed governing switch, and the set time is opened, sweeps the water smoke on detection window surface.
In a specific embodiment of the present invention, the purging medium of the third purging mechanism is air.
When the SDD device is used, a camera of the SDD device is arranged in the lower surface detection chamber, the camera is aligned to the detection window, the passing hot-rolled stainless steel strip is detected through a gap between two adjacent roller ways at the upper end of the detection window, and when the hot-rolled stainless steel strip passes through the detection window, the camera takes a picture and transmits the picture to the controller for analysis; the laminar cooling device and the detection window are close to each other, in actual production, the cooling water consumption difference is large, the cooling water consumption of a common SUS304 thin plate is large and is influenced by the speed of strip steel, and a large amount of laminar cooling water can be brought into the detection window, so that a camera is polluted, the detection window forms water mist, the shooting effect is poor, and serious external interference is generated on defect detection; and the strong air blowing of the first blowing mechanism can cause partial cooling water to splash at the detection window, so that the second blowing mechanism is arranged between the coiler side introduction port and the detection window, and the cooling water is prevented from splashing at the detection window.
3. Advantageous effects
Compared with the prior art, the beneficial effects of the utility model are that: the method has the advantages that the method combines the actual operation of a hot rolling production line and the characteristics of equipment, avoids the interference of adverse factors of environmental working conditions, clearly shoots the defect picture of the strip steel, analyzes the shot picture, identifies the defect part and meets the requirement of defect identification.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of the surface defect detection device for hot-rolled stainless steel strip.
In the figure: 1-a lower surface detection chamber; 2-a first purge mechanism; 3-a coiler side inlet; 4-flow cooling means; 5-roller bed; 6-detection window; 7-a gap; 8-a camera; 9-a first speed regulating switch; 10-a second purging mechanism; 11-a second speed regulating switch; 12-a third purge mechanism; 13-third speed regulating switch.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the utility model, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the utility model.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "connected" are to be interpreted broadly, e.g. as a fixed connection, a detachable connection or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the utility model can be understood in specific cases to those of ordinary skill in the art.
As shown in figure 1, the device for detecting the defects on the lower surface of the hot-rolled stainless steel strip is characterized by comprising a lower surface detection chamber 1, an SDD device and a first blowing mechanism 2, wherein the lower surface detection chamber 1 is arranged between a side inlet 3 of a coiler and a laminar cooling device 4; a plurality of roller ways 5 are arranged above the lower surface detection chamber 1; the upper end of the lower surface detection chamber 1 is provided with a detection window 6, the detection window 6 is positioned at the lower part of a gap 7 between two adjacent tracks, and a camera 8 of the SDD device is arranged in the lower surface detection chamber 1 and is aligned with the detection window 6 and the gap 7 between the two adjacent tracks; the first blowing mechanism 2 is arranged between the laminar cooling device 4 and the detection window 6, and the outlet of the blowing nozzle of the first blowing mechanism 2 points to the roller table 5 at the laminar cooling device 4.
The first sweeping mechanism 2 is provided with a first speed regulating switch 9 for regulating the blowing rate according to the amount of cooling water of the laminar cooling device 4.
The purge medium of the first purge mechanism 2 is air.
The device for detecting the defects on the lower surface of the hot-rolled stainless steel strip further comprises a second purging mechanism 10, wherein the second purging mechanism 10 is arranged on two sides of the adjacent roller way 5 above the detection window 6, and a blowing nozzle of the second purging mechanism 10 points to the lower surface of the strip steel; it is avoided that a part of water is splashed above the detection window 6 due to the large blowing strength of the first blowing mechanism 2.
The second purging mechanism 10 is provided with a second speed regulating switch 11 for regulating the air blowing rate according to the amount of cooling water of the laminar cooling device 4.
The purging medium of the second purging mechanism 10 is air.
The device for detecting the defects on the lower surface of the hot-rolled stainless steel strip further comprises a third purging mechanism 12, wherein the third purging mechanism 12 is arranged between the detection window 6 and the roller way 5, and a blowing nozzle of the third purging mechanism 12 points to the detection window 6.
The third purging mechanism 12 is provided with a third speed regulating switch 13 which is turned on at a set time to purge the water mist on the surface of the detection window 6.
The purging medium of the third purging mechanism 12 is air.
When the detection device is used, the camera 8 of the SDD device is arranged in the lower surface detection chamber 1, the camera 8 is aligned to the detection window 6, the passing hot-rolled stainless steel strip is detected through the gap between two adjacent roller ways 5 at the upper end of the detection window 6, and when the hot-rolled stainless steel strip passes through the detection window 6, the camera 8 takes a picture and transmits the picture to the controller for analysis; the laminar cooling device 4 and the detection window 6 are close to each other, in actual production, the cooling water consumption difference is large, the cooling water consumption of a common SUS304 thin plate is large and is influenced by the speed of strip steel, a large amount of laminar cooling water can be brought into the detection window 6, so that a camera 8 is polluted, the detection window 6 forms water mist, the shooting effect is poor, and serious external interference is generated on defect detection, therefore, the first blowing mechanism 2 is arranged between the laminar cooling device 4 and the detection window 6, and the cooling water is blocked outside the detection window 6; and the larger air blowing strength of the first blowing mechanism 2 can cause part of the cooling water to splash at the detection window 6, so that the second blowing mechanism 10 is arranged between the coiler side introduction port 3 and the detection window 6 to avoid the cooling water from splashing at the detection window 6.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. The utility model provides a hot rolling stainless steel strip steel lower surface defect detection device which characterized in that: the device comprises a lower surface detection chamber, an SDD device and a first blowing mechanism, wherein the lower surface detection chamber is arranged between a side inlet of a coiler and a laminar flow cooling device; a plurality of roller ways are arranged above the lower surface detection chamber; the upper end of the lower surface detection chamber is provided with a detection window, the detection window is positioned at the lower part of the gap between the two adjacent rails, and the camera of the SDD device is arranged in the lower surface detection chamber and is aligned with the detection window and the gap between the two adjacent rails; the first blowing mechanism is arranged between the laminar flow cooling device and the detection window, and an outlet of a blowing nozzle of the first blowing mechanism points to a roller way at the laminar flow cooling device.
2. The device for detecting the defects on the lower surface of the hot-rolled stainless steel strip as claimed in claim 1, wherein: the first blowing mechanism is provided with a first speed regulating switch, and the air blowing rate is regulated according to the cooling water amount of the laminar flow cooling device.
3. The device for detecting the defects on the lower surface of the hot-rolled stainless steel strip as claimed in claim 1, wherein: the purging medium of the first purging mechanism is air.
4. The device for detecting the defects on the lower surface of the hot-rolled stainless steel strip as claimed in claim 1, wherein: the device for detecting the defects on the lower surface of the hot-rolled stainless steel strip further comprises a second purging mechanism, wherein the second purging mechanism is arranged on two sides of the adjacent roller ways above the detection window, and a blowing nozzle of the second purging mechanism points to the lower surface of the strip steel.
5. The device for detecting the defects on the lower surface of the hot-rolled stainless steel strip as claimed in claim 4, wherein: the second purging mechanism is provided with a second speed regulating switch, and the air blowing rate is regulated according to the cooling water amount of the laminar flow cooling device.
6. The device for detecting the defects on the lower surface of the hot-rolled stainless steel strip as claimed in claim 4, wherein: the purging medium of the second purging mechanism is air.
7. The device for detecting the defects on the lower surface of the hot-rolled stainless steel strip as claimed in claim 1, wherein: the device for detecting the defects on the lower surface of the hot-rolled stainless steel strip further comprises a third purging mechanism, wherein the third purging mechanism is arranged between the detection window and the roller way, and a blowing nozzle of the third purging mechanism points to the detection window.
8. The apparatus for detecting defects on the lower surface of hot-rolled stainless steel strip according to claim 7, wherein: the third purging mechanism is provided with a third speed regulating switch, is started at set time, and purges the water mist on the surface of the detection window.
9. The apparatus for detecting defects on the lower surface of hot-rolled stainless steel strip according to claim 7, wherein: the purging medium of the third purging mechanism is air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023302323.6U CN214441859U (en) | 2020-12-31 | 2020-12-31 | Hot rolling stainless steel strip steel lower surface defect detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023302323.6U CN214441859U (en) | 2020-12-31 | 2020-12-31 | Hot rolling stainless steel strip steel lower surface defect detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214441859U true CN214441859U (en) | 2021-10-22 |
Family
ID=78109405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023302323.6U Active CN214441859U (en) | 2020-12-31 | 2020-12-31 | Hot rolling stainless steel strip steel lower surface defect detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214441859U (en) |
-
2020
- 2020-12-31 CN CN202023302323.6U patent/CN214441859U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8834636B2 (en) | Apparatus and method for the continuous pickling of steel strip | |
| KR101603470B1 (en) | Rolling apparatus and rolling monitoring method | |
| CN112570466B (en) | Control method for solving scratch of high-surface thin-specification strip steel conveying roller way | |
| CN110064667B (en) | Laminar cooling method for steel plate | |
| CN108655203B (en) | Method for quickly identifying and monitoring camber defect of hot continuous rolling strip steel | |
| CN214441859U (en) | Hot rolling stainless steel strip steel lower surface defect detection device | |
| CN115836140A (en) | Dross defect prediction method, dross defect reduction method, method for manufacturing hot-dip galvanized steel sheet, method for manufacturing alloyed hot-dip galvanized steel sheet, dross defect prediction model generation method, dross defect prediction device, and dross defect prediction terminal system | |
| TW201217080A (en) | capable of detecting steel billet defect in real time and displaying detection results in order to determine the process stability and the features of steel grades | |
| CN103645195A (en) | Cold-rolled steel surface detection method based on machine vision | |
| WO2021082467A1 (en) | Method and device for detecting surface defects of hot rolled steel material | |
| JP2019181562A (en) | Method of measuring amount of curvature and device for measuring amount of curvature of rolled material | |
| CN110014043B (en) | Control method for dynamically adjustable descaling pressure of strip steel surface grading | |
| JP2012076094A (en) | Method for detecting flaw of continuously cast slab and system for detecting flaw | |
| CN209342629U (en) | Coiled strip defect inspection machine | |
| CN206794377U (en) | A kind of hot rolling surface detector water-proof protection device | |
| JP2009078289A (en) | Method of detecting defect of hot-rolled metallic strip using near infrared camera in hot rolling and method of manufacturing hot-rolled metallic strip using it | |
| CN115112664A (en) | Accurate and efficient control method for surface defects of wire rod based on hot eye equipment | |
| KR101583550B1 (en) | Transfer Device For Air Knife | |
| CN201596775U (en) | Online detection device for surface cracks of slabs | |
| JP5712572B2 (en) | Defect detection method and defect detection device for continuous cast slab for thin steel sheet | |
| CN218835595U (en) | Waterproof dustproof construction suitable for wide thick plate surface detecting system | |
| JPS58187253A (en) | Method for detecting abnormality and evaluating surface of ingot in continuous casting | |
| CN112264472B (en) | Device for removing iron oxide and improving surface problem detection rate and operation process thereof | |
| CN211645318U (en) | Device for controlling surface defects of strip steel in continuous annealing furnace | |
| KR102325921B1 (en) | Snout Zinc Removal System for Zinc Plating Equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |