Strip steel surface quality inspection equipment and method

Abstract

The invention relates to strip steel surface quality inspection equipment which is characterized in that meter inspection instruments are provided with measuring heads, the measuring heads are connected with the corresponding meter inspection instruments, a unit comprises a first steering roller, a second steering roller, a third steering roller and a fourth steering roller, and strip steel enters a second quality inspection table and a fourth steering roller after passing through the first steering roller, a first quality inspection table, a second steering roller and a third steering roller. A first measuring head and a first stroboscope are sequentially arranged on the upper surface of the strip steel driven by the first turning roller and the second turning roller, a second stroboscope and a second measuring head are sequentially arranged on the lower surface of the strip steel driven by the first turning roller and the second turning roller, and an illuminating lamp set is arranged above the second quality inspection table. The device has the advantages that manual visual inspection is not needed, picture information is uploaded to a display screen by adopting the upper surface meter detector measuring head and the lower surface meter detector measuring head, and quality inspection personnel can observe pictures at any time conveniently; the vertical quality inspection table and the horizontal quality inspection table are adopted, and non-stop rapid quality inspection of the upper / lower surface of the strip steel is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of steel rolling, and in particular to a strip steel surface quality inspection device and method. Background Art

[0002] In the face of the increasing quality requirements of users of automobile steel and home appliance plates and the market competition, it is particularly important to ensure that quality inspectors can quickly and accurately detect quality defects on the surface of the strip at the quality inspection stations of each cold rolling unit. At present, the quality inspection stations of each cold rolling unit at home and abroad are generally divided into vertical quality inspection stations and horizontal quality inspection stations to realize the quality inspection of the upper and lower surfaces of the strip. Figure 1 Among them, the vertical quality inspection table is a manual visual inspection of the upper and lower surfaces of the strip. The vertical quality inspection table is often too short or too high, which has an adverse effect on the quality inspection personnel's inspection of the surface defects of the strip when the unit is running, often resulting in missed defects or defects passing through the vertical quality inspection table. The surface quality inspection instrument (i.e., surface inspection instrument) of the unit is used to check back and confirm the location of the defect. However, the return of the steel strip increases the generation of new defects such as scratches and dents, which causes the loss of finished products in the enterprise production, reduces the yield rate, increases production costs, and weakens the survival vitality of steel enterprises in the fierce industry competition. Summary of the invention

[0003] The purpose of the present invention is to provide a strip surface quality inspection device and method, which improves the timeliness and accuracy of cold-rolled plate quality inspection, reduces quality inspection omissions, improves the yield rate, ensures mass production, and enhances the survival vitality of enterprises in competition with the same industry.

[0004] To achieve the above object, the present invention is implemented through the following technical solutions:

[0005] A strip surface quality inspection device comprises a machine unit, a first surface inspection instrument, a second surface inspection instrument, a first stroboscope, a second stroboscope, a first quality inspection platform, and a second quality inspection platform. The first surface inspection instrument is provided with a measuring head, and the second surface inspection instrument is provided with a measuring head. The first measuring head is connected to the first surface inspection instrument, and the second measuring head is connected to the second surface inspection instrument. The machine unit comprises a first steering roller, a second steering roller, a third steering roller, and a fourth steering roller. The strip enters the second quality inspection platform and the fourth steering roller through the first steering roller, the first quality inspection platform, the second steering roller, and the third steering roller. The upper surface of the strip driven by the first steering roller and the second steering roller is provided with a measuring head and a first stroboscope in sequence. The lower surface of the strip driven by the first steering roller and the second steering roller is provided with a second stroboscope and a second measuring head in sequence. A lighting lamp group is provided above the second quality inspection platform. The first steering roller to the fourth steering roller, the first surface inspection instrument, the second surface inspection instrument, the first stroboscope, the second stroboscope, and the lighting lamp group are respectively connected to the client.

[0006] Steering roller one and steering roller two drive the strip to move in the vertical direction, steering roller three and steering roller four drive the strip to move in the horizontal direction, quality inspection table one is arranged vertically, and quality inspection table two is arranged horizontally.

[0007] A metal probe sensor is arranged on one side of each steering roller, and the metal probe sensor is connected to the client.

[0008] The client includes a control system and a display device. The display device includes display screen 1 and display screen 2. Display screen 1 is used to display the image set of the upper surface of the strip obtained by surface inspection instrument 1, and display screen 2 is used to display the image set of the upper surface of the strip obtained by surface inspection instrument 2. The control system is connected to surface inspection instrument 1 and surface inspection instrument 2.

[0009] Display screen one is supported and fixed by bracket one, display screen two is supported and fixed by bracket two, and bracket one and bracket two are fixedly connected to quality inspection table one.

[0010] The lighting unit is an LED lighting unit.

[0011] It also includes a control box, which is provided with buttons for speed increase, speed decrease, start and stop operations of the unit.

[0012] A method for inspecting the surface quality of a strip steel, specifically comprising the following contents:

[0013] 1) The strip passes through the first turning roller, the first quality inspection platform, the second turning roller, the third turning roller, and enters the second quality inspection platform and the fourth turning roller, so that the strip is located in the first quality inspection platform section between the first turning roller and the second turning roller in a state where the inspection length is sufficient;

[0014] 2) The metal probe sensor is used to sense the position of the strip to start the drive mechanism to drive the strip to rotate;

[0015] 3) The control system analyzes the image set of the upper surface of the strip or the image set of the lower surface of the strip according to the typical defect characteristics learned by the meter inspection instrument, obtains the quality defect images of the upper surface of the strip and the lower surface of the strip, and transmits them to the first display screen and the second display screen respectively;

[0016] 4) When the unit is running, adjust the light frequency and light intensity of stroboscope 1 and stroboscope 2;

[0017] 5) The first and second surface inspection instruments are close to the side of the moving strip, so that the first and second display screens obtain an image set of the upper surface of the strip or the lower surface of the strip;

[0018] 6) When the unit is running or stopped, the illumination of the lighting group shall be ≥800lux;

[0019] 7) The length of the second quality inspection table is ≥ 6500mm;

[0020] 8) The quality inspector can control the speed of the unit at any time by pressing the buttons on the control box. If there are quality defects on the upper or lower surface of the strip, the unit will be stopped.

[0021] Display screen one splits the screen to display an image set of the upper surface of the strip and an image of quality defects on the upper surface of the strip, and display screen two splits the screen to display an image set of the lower surface of the strip and an image of quality defects on the lower surface of the strip.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. No need for manual visual inspection, the upper surface inspection instrument measuring head and the lower surface inspection instrument measuring head are used to measure the surface quality defects of the strip in real time, and the captured strip defect feature pictures are uploaded to the surface quality inspection instrument control system of the central console;

[0024] 2. Both display screen 1 and display screen 2 are split-screen displays, ensuring that quality inspectors can quickly and synchronously compare the defects of the running strip with the real-time display content of display screen 1 / display screen 2 on either side of the upper or lower surface of the strip. The vertical quality inspection table is used to realize double-sided rapid quality inspection on the upper / lower surface of the strip without stopping the machine;

[0025] 3. The control system analyzes the image set of the upper surface of the strip or the image set of the lower surface of the strip according to the typical defect characteristics learned by the meter inspection instrument, obtains the image of the upper surface quality defects of the strip, and transmits it to the service end, which improves the timeliness of quality inspection by quality inspectors;

[0026] 4. The stroboscope lamp head is set on the upper surface and the lower surface of the vertical quality inspection table, which can adjust the frequency and brightness of the projected light. By projecting a combination of spectrum of different frequencies and brightness intensities, it provides optical guarantee for quality inspectors to identify and judge the surface quality defects of the strip;

[0027] 5. The strip passes through the first turning roller, the second turning roller, the third turning roller, the measuring head of the upper surface inspection instrument, the upper surface stroboscope lamp head and the lower surface stroboscope lamp head, and enters the vertical quality inspection table, so that the strip part is located in the vertical quality inspection table area between the third turning roller and the third turning roller in a state of tension, straightness, stability, no shaking and sufficient inspection length, so as to perform surface quality inspection on this part of the strip;

[0028] 6. The start and stop control boxes of the upper surface side control unit and the start and stop control boxes of the lower surface side control unit are both installed and fixed on the columns of the vertical quality inspection platform, so as to be close to the safe distance of the strip steel, which is convenient for the quality inspectors to operate, reduces the frequency of shutdown inspection, improves the production efficiency of cold-rolled plates, and reduces the occurrence of new quality defects caused by the sag of the strip steel caused by frequent shutdowns for quality inspections;

[0029] 7. The length of the horizontal quality inspection table is ≥6500mm. This length covers the quality defects of all roller systems of cold rolling production lines and avoids blind spots in quality inspection from a physical perspective. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the planar structure of the strip surface quality inspection equipment of a conventional rewinding unit.

[0031] Figure 2 It is a schematic diagram of the planar structure of the strip steel surface quality inspection equipment of the present invention.

[0032] Figure 3 It is a schematic diagram of the client structure of the present invention.

[0033] Figure 4 It is a schematic diagram of the client principle of the present invention.

[0034] In the figure: 1-steering roller one 2-steering roller two 3-steering roller three 301-upper surface surface inspection instrument measuring head 4-steering roller four 401-lower surface surface inspection instrument measuring head 5-steering roller five 6-vertical quality inspection table 601-upper surface stroboscope lamp head 602-lower surface stroboscope lamp head 603-display screen two 604-lower surface side control unit start and stop control box 605-display screen one 606-upper surface side control unit start and stop control box 7-central console 701-client 702-surface quality inspection instrument cabinet 703-through network distributor 704-surface quality inspection instrument host 8-horizontal quality inspection table 801-LED lighting group 9-unwinder 10-entry shear 11-narrow lap welder 12-quality inspection table / stroboscopic instrument, deviation correction roller 13-disc shear 14-ball rolling machine 15-oiling machine 16-exit shear 17-coiler 18-exit walking beam and weighing instrument. DETAILED DESCRIPTION

[0035] The present invention is described in detail below in conjunction with the accompanying drawings, but it should be noted that the implementation of the present invention is not limited to the following embodiments.

[0036] A strip steel surface quality inspection device comprises a unit, a control box, a first table inspection instrument, a second table inspection instrument, a first stroboscope, a second stroboscope, a first quality inspection table, and a second quality inspection table. The first table inspection instrument is provided with a first measuring head, and the second table inspection instrument is provided with a second measuring head. The first measuring head is connected to the first table inspection instrument, and the second measuring head is connected to the second table inspection instrument. Both the first table inspection instrument and the second table inspection instrument adopt BaoVision-SIS, and both the first measuring head and the second measuring head adopt BV-SIS-CAM-C-4K80. The unit comprises a first steering roller, a second steering roller, a third steering roller, and a fourth steering roller. The first steering roller and the second steering roller drive the strip steel to move in a vertical direction, and the third steering roller and the fourth steering roller drive the strip steel to move in a horizontal direction. The first quality inspection table is arranged vertically, and the second quality inspection table is arranged horizontally. Steering roller one, quality inspection table one, steering roller two, steering roller three, enter quality inspection table two and steering roller four, each steering roller transmission side motor rotating shaft end is provided with a photoelectric code disk encoder, model RHI90N-OIAK1R61N-1024, used to measure the position of the strip to start the driving mechanism to drive the strip to rotate, the upper surface of the strip driven by steering roller one and steering roller two is provided with a measuring head one and a stroboscope one in sequence, the lower surface of the strip driven by steering roller one and steering roller two is provided with a stroboscope two and a measuring head two in sequence, a lighting group is provided above quality inspection table two, the lighting group is an LED lighting group, steering rollers one to four, meter inspection instrument one, meter inspection instrument two, stroboscope one, stroboscope two, metal probe sensor, lighting are connected to the client. The client includes a control system and a display device. The display device includes display screen 1 and display screen 2. Display screen 1 is used to display the image set of the upper surface of the strip obtained by meter inspection instrument 1, and display screen 2 is used to display the image set of the upper surface of the strip obtained by meter inspection instrument 2. Display screen 1 is supported and fixed by bracket 1, and display screen 2 is supported and fixed by bracket 2. Bracket 1 and bracket 2 are fixedly connected to both sides of the column on the quality inspection table 1. The image information of the upper surface or lower surface of the strip obtained by meter inspection instrument 1 or meter inspection instrument 2, the control system is connected to meter inspection instrument 1 and meter inspection instrument 2. Buttons are set in the control box for the speed increase, speed decrease, start and stop operations of the unit.

[0037] A method for inspecting the surface quality of a strip steel, specifically comprising the following contents:

[0038] 1) The strip passes through the first turning roller, the first quality inspection platform, the second turning roller, the third turning roller, and enters the second quality inspection platform and the fourth turning roller, so that the strip is located in the first quality inspection platform section between the first turning roller and the second turning roller in a state where the inspection length is sufficient;

[0039] 2) The metal probe sensor is used to sense the position of the strip to start the drive mechanism to drive the strip to rotate;

[0040] 3) The control system analyzes the image set of the upper surface of the strip or the image set of the lower surface of the strip according to the typical defect characteristics learned by the meter inspection instrument, obtains the quality defect images of the upper surface of the strip and the lower surface of the strip and transmits them to the display screen 1 and the display screen 2 respectively; the control system adopts SISServer;

[0041] 4) When the unit is running, adjust the light frequency and light intensity of stroboscope 1 and stroboscope 2;

[0042] 5) The first and second surface inspection instruments are close to the side of the moving strip, so that the first and second display screens obtain an image set of the upper surface of the strip or the lower surface of the strip;

[0043] 6) When the unit is running or stopped, the illumination of the lighting group shall be ≥800lux;

[0044] 7) The length of the second quality inspection table is ≥ 6500mm;

[0045] 8) The quality inspector can control the speed of the unit at any time by pressing the buttons on the control box. If there are quality defects on the upper or lower surface of the strip, the unit will be stopped.

[0046] The control system includes a memory and a processor. The memory stores a computer program. When the processor executes the computer program, the operations performed by the above strip steel surface quality inspection method are realized.

[0047] The following examples are implemented on the premise of the technical solution of the present invention, and provide detailed implementation methods and specific operation processes, but the protection scope of the present invention is not limited to the following examples. The methods used in the following examples are conventional methods unless otherwise specified.

[0048] [Example 1]

[0049] Strip quality inspection is carried out in the vertical quality inspection area of ​​the quality inspection table of each cold rolling unit. When the unit is running to inspect the surface defects of the strip, see Figure 1 After checking the steel strip from the vertical quality inspection area, the machine is slowed down, stopped or missed defects, and then stopped and slowed down again. Then the defects are reviewed through the surface quality inspection instrument on the operating table next to the machine. The time efficiency is low and the work rhythm is cumbersome. A strip surface quality inspection device and method, see Figure 2 ,See Figure 3 , during the operation of the unit, it helps quality inspectors to identify the locations where quality defects occur at the first time and make judgments and decisions at the first time.

[0050] A strip surface quality inspection device includes a steering roller 1, a steering roller 2, a steering roller 3, a steering roller 4, a steering roller 5, a measuring head 301 of an upper surface inspection instrument, a lamp head 601 of an upper surface stroboscope, a lamp head 602 of a lower surface stroboscope, a vertical quality inspection platform 6, a display screen 1 605, a display screen 2 603, a client 701, a surface quality inspection instrument cabinet 702, a network distributor 703, a start and stop control box 606 of an upper surface side control unit, a start and stop control box 604 of a lower surface side control unit, a measuring head 401 of a lower surface inspection instrument, a horizontal quality inspection platform 8, and an LED lighting group 801; the vertical quality inspection platform 6 and the central control platform 7 are located between the steering roller 3 3 and the steering roller 4 4, and the two are arranged in sequence. The steering roller 3 3 and the steering roller 4 4 are both provided with an upper surface inspection instrument measuring head 301 and a lower surface inspection instrument measuring head 401 close to each other, which measure the surface quality defects of the strip in real time, and upload the captured strip defect feature pictures to the surface quality detector system 702 of the central console 7. The vertical quality inspection table 6 has an upper surface stroboscope lamp head 601 and a lower surface stroboscope lamp head 602, so as to inspect the upper and lower surfaces of the strip. Display screen 1 605 and display screen 2 603 are located on both sides of the steel structure column of the vertical quality inspection table 6 close to the strip, so that the quality inspectors can quickly and real-time check the surface quality of the strip. In order to facilitate the prompting of the quality inspectors on the timeliness of the quality inspection, the client 701 is added to train the defect expert database and check the defects of the surface inspection instrument defect expert system. The real-time strip surface quality defect feature images collected from the measuring heads 301 / 401 of the upper / lower surface inspection instrument on site are split on the display screen 1 605 and the display screen 2 603 through the client host 701 operating system software, so as to provide real-time judgment for the quality inspectors, thereby improving the timeliness of online surface quality inspection judgment. The upper surface side control unit start and stop control box 606 and the lower surface side control unit start and stop control box 604 both have the button operation of unit quick stop, unit acceleration, and unit stop. The operation box 606 / 604 is fixedly installed on the steel structure column of the vertical quality inspection platform 6, which reduces the frequency of shutdown inspection and avoids the generation of new quality defects caused by the vertical drop of strip steel caused by frequent shutdown of quality inspection.

[0051] In order to facilitate quality inspectors to better inspect the quality of the strip on the vertical quality inspection table 6, the stroboscope lamp head 601 on the upper surface and the stroboscope lamp head 602 on the lower surface of the vertical quality inspection table 6 can adjust the frequency and brightness of the projected light. By projecting a combination of spectrums of different frequencies and brightness intensities, optical guarantees are provided for quality inspectors to accurately identify and judge the surface quality defects of the strip. To meet the inspection needs of various cold-rolled plates, the steering roller 5 5 stabilizes the tension of the strip before and after the center console 7. It is used in combination with the horizontal quality inspection table 8 and the LED lighting group 801. The LED lighting group 801 is located above the horizontal quality inspection table 8 and can adjust the illumination. The illumination is ≥800lux to ensure the quality inspection of the cold-rolled plate production. In order to ensure that the quality defects of all production line rollers of various cold-rolled plates are covered, the length of the horizontal quality inspection table 8 is required to be ≥6500mm.

[0052] A method for improving the time efficiency of vertical quality inspection of cold-rolled plates, the inspection method comprising the following steps:

[0053] S01, wear belt

[0054] The strip passes through turning roller 1, turning roller 2, turning roller 3, and the upper surface inspection instrument measuring head 301, and passes through the upper surface stroboscope lamp head 601 and the lower surface stroboscope lamp head 602, and enters the vertical quality inspection table 6, so that part of the strip is located in the interval of the vertical quality inspection table 6 between turning roller 3 and the third turning roller 4 in a tensioned, straight, stable, jitter-free state with sufficient inspection length, so as to perform surface quality inspection on this part of the strip.

[0055] S02, vertical quality inspection table 6

[0056] The upper surface side control unit start and stop control box 606 and the lower surface side control unit start and stop control box 604 are used to control the operation or stop of the unit strip according to the type and severity of the surface quality defects of the strip. The upper surface side control unit start and stop control box 606 and the lower surface side control unit start and stop control box 604 both have unit quick stop, unit acceleration, and unit stop button operations, so that the quality inspectors can quickly adjust the strip travel degree according to the severity of the surface defects of the strip, thereby realizing a fast and flexible strip quality inspection function. The upper surface side control unit start and stop control box 606 and the lower surface side control unit start and stop control box 604 are both installed and fixed on the steel structure column of the vertical quality inspection platform 6 at the shortest safe distance from the strip, ensuring that the quality inspectors can quickly and real-time check the strip quality defects without stopping the unit, thereby reducing the frequency of shutdown inspections, improving the production efficiency of cold-rolled plates, and effectively avoiding the generation of new quality defects caused by the sag of the strip caused by frequent shutdowns for quality inspections.

[0057] S03, horizontal quality inspection table 8

[0058] The horizontal quality inspection table 8 is used in combination with the LED lighting group 801 above it. The illumination of the LED lighting group 801 is adjustable according to the needs of quality inspectors. The strip is controlled by adjusting the torque of the steering roller 5 to inspect the upper surface of the strip in a more stable state. The length of the horizontal quality inspection table 8 is ≥6500mm. This length covers the quality defects of all roller systems of the cold rolling production line, avoiding blind spots in the inspection of quality inspection defects from a physical perspective.

[0059] S04, surface inspection of vertical quality inspection table 6

[0060] When the unit is running, adjust the light emission frequency and light intensity of the upper surface stroboscope lamp head 601 and the lower surface stroboscope lamp head 602 to ensure that the quality inspection judge can perform quality inspection with the most comfortable light perception;

[0061] By using the display screen 1 605 and the display screen 2 603, the quality inspector can quickly and synchronously compare the defects of the running strip with the real-time display content of the display screen 1 605 / display screen 2 603 on either side of the upper surface or the lower surface of the strip. The vertical quality inspection table 6 is used to realize the double-sided rapid quality inspection of the upper / lower surface of the strip without stopping the machine;

[0062] See Figure 4 , display screen one 605 and display screen two 603, collect the real-time measurement data of the upper surface meter measuring head 301 and the lower surface meter measuring head 401 into the surface quality inspection instrument cabinet 702, and then the quality defect expert database application software in the central control console client 701 realizes classification and identification, and the system software performs split-screen processing. The system software uses SISTerminal and transmits it to display screen one 605 and display screen two 603 through the network distributor 703, which improves the timeliness and accuracy of quality inspection operations.

[0063] S05, Surface inspection of horizontal quality inspection table

[0064] When the unit is running or stopped, adjust the illumination of the LED lighting group to ≥800lux to provide guarantee for the final product inspection; a sufficient number of mosquito-killing lamps need to be installed around the LED lighting group 801 to prevent mosquitoes from being attracted by the brightness of the LED lighting group 801 in summer and autumn and gathering around the light and falling onto the surface of the strip, causing new quality defects and interfering with the quality stability of the cold-rolled plate.

[0065] The present invention does not require manual visual inspection, but adopts the measuring head of the upper surface meter inspection instrument and the measuring head of the lower surface meter inspection instrument to measure the surface quality defects of the strip in real time, and uploads the captured characteristic pictures of the strip defects to the surface quality detector system of the central console; the display screen one and the display screen two both adopt split-screen display, so as to ensure that the quality inspectors can quickly and synchronously compare the defects of the running strip with the contents displayed in real time on the display screen one / display screen two on either side of the upper surface or the lower surface of the strip in real time, and the vertical quality inspection table is used to realize the double-sided rapid quality inspection of the upper / lower surface of the strip without stopping; the control system analyzes the image set of the upper surface of the strip or the image set of the lower surface of the strip according to the typical characteristics of the defects self-learned by the meter inspection instrument, obtains the image of the upper surface quality defects of the strip, and transmits it to the service end, so as to improve the timeliness of the quality inspection by the quality inspectors; the stroboscope lamp head is arranged on the upper surface and the lower surface of the vertical quality inspection table, which can adjust the frequency and brightness of the projected light, and provide the quality inspectors with a combination of projected spectrum of different frequencies and brightness intensities. The strip passes through the first steering roller, the second steering roller, the third steering roller, the measuring head of the upper surface gauge, the upper surface stroboscope lamp head and the lower surface stroboscope lamp head, and enters the vertical quality inspection table, so that part of the strip is located in the vertical quality inspection table interval between the third steering roller and the third steering roller in a state of tension, straightness, stability, no shaking and sufficient inspection length, so as to carry out surface quality inspection on this part of the strip; the start and stop control box of the upper surface side control unit and the start and stop control box of the lower surface side control unit are both installed and fixed on the column of the vertical quality inspection table, so as to be close to the closest safe distance of the strip, which is convenient for quality inspectors to operate, reduces the frequency of shutdown inspection, improves the production efficiency of cold-rolled plates, and reduces the generation of new quality defects caused by the vertical drop of strip caused by frequent shutdowns for quality inspection; the length of the horizontal quality inspection table is ≥6500mm, which realizes the coverage of quality defects of all production line rollers of cold rolling, and avoids the inspection blind spots of quality inspection defects from a physical point of view.

Claims

1. A strip steel surface quality inspection device, characterized in that: It includes a machine unit, a meter inspection instrument 1, a meter inspection instrument 2, a stroboscope 1, a stroboscope 2, a quality inspection table 1, and a quality inspection table 2. The meter inspection instrument 1 is provided with a measuring head 1, and the meter inspection instrument 2 is provided with a measuring head 2. The measuring head 1 is connected to the meter inspection instrument 1, and the measuring head 2 is connected to the meter inspection instrument 2. The machine unit includes a steering roller 1, a steering roller 2, a steering roller 3, and a steering roller 4. The strip enters the quality inspection table 2 and the steering roller 4 through the steering roller 1, the quality inspection table 1, the steering roller 2, the steering roller 3. The upper surface of the strip driven by the steering roller 1 and the steering roller 2 is sequentially provided with a measuring head 1 and a stroboscope 1, and the lower surface of the strip driven by the steering roller 1 and the steering roller 2 is sequentially provided with a stroboscope 2 and a measuring head 2. A lighting lamp group is arranged above the quality inspection table 2. The steering rollers 1 to 4, the meter inspection instrument 1, the meter inspection instrument 2, the stroboscope 1, the stroboscope 2, and the lighting lamp group are respectively connected to the client.

2. The strip steel surface quality inspection device according to claim 1, characterized in that: Steering roller one and steering roller two drive the strip to move in the vertical direction, steering roller three and steering roller four drive the strip to move in the horizontal direction, quality inspection table one is arranged vertically, and quality inspection table two is arranged horizontally.

3. The strip steel surface quality inspection device according to claim 1, characterized in that: A metal probe sensor is arranged on one side of each steering roller, and the metal probe sensor is connected to the client.

4. The strip steel surface quality inspection device according to claim 3, characterized in that: The client includes a control system and a display device. The display device includes display screen 1 and display screen 2. Display screen 1 is used to display the image set of the upper surface of the strip obtained by surface inspection instrument 1, and display screen 2 is used to display the image set of the upper surface of the strip obtained by surface inspection instrument 2. The control system is connected to surface inspection instrument 1 and surface inspection instrument 2.

5. The strip steel surface quality inspection device according to claim 4, characterized in that: The display screen 1 is supported and fixed by the bracket 1, the display screen 2 is supported and fixed by the bracket 2, and the bracket 1 and the bracket 2 are fixedly connected to the quality inspection table 1.

6. The strip steel surface quality inspection device according to claim 1, characterized in that: The lighting lamp group is an LED lighting lamp group.

7. The strip steel surface quality inspection device according to claim 1, characterized in that: It also includes a control box, which is provided with buttons for speed increase, speed decrease, start and stop operations of the unit.

8. The device according to any one of claims 1 to 7 is used in a method for inspecting the surface quality of a strip steel, characterized in that: Specifically include the following: 1) The strip passes through the first turning roller, the first quality inspection platform, the second turning roller, the third turning roller, and enters the second quality inspection platform and the fourth turning roller, so that the strip is located in the first quality inspection platform section between the first turning roller and the second turning roller in a state where the inspection length is sufficient; 2) The metal probe sensor is used to sense the position of the strip to start the drive mechanism to drive the strip to rotate; 3) The control system analyzes the image set of the upper surface of the strip or the image set of the lower surface of the strip according to the typical defect characteristics learned by the meter inspection instrument, obtains the quality defect images of the upper surface of the strip and the lower surface of the strip, and transmits them to the first display screen and the second display screen respectively; 4) When the unit is running, adjust the light frequency and light intensity of stroboscope 1 and stroboscope 2; 5) The first and second surface inspection instruments are close to the side of the moving strip, so that the first and second display screens obtain an image set of the upper surface of the strip or the lower surface of the strip; 6) When the unit is running or stopped, the illumination of the lighting group shall be ≥800lux; 7) The length of the second quality inspection table is ≥ 6500mm; 8) The quality inspector can control the speed of the unit at any time by pressing the buttons on the control box. If there are quality defects on the upper or lower surface of the strip, the unit will be stopped.

9. A strip steel surface quality inspection method according to claim 8, characterized in that: The first split screen of the display screen displays an image set of the upper surface of the steel strip and an image of quality defects on the upper surface of the steel strip, and the second split screen of the display screen displays an image set of the lower surface of the steel strip and an image of quality defects on the lower surface of the steel strip.

Images