WO2022193950A1 - Roller surface image capturing apparatus and system, and online roller surface testing system and method - Google Patents

Roller surface image capturing apparatus and system, and online roller surface testing system and method Download PDF

Info

Publication number
WO2022193950A1
WO2022193950A1 PCT/CN2022/078794 CN2022078794W WO2022193950A1 WO 2022193950 A1 WO2022193950 A1 WO 2022193950A1 CN 2022078794 W CN2022078794 W CN 2022078794W WO 2022193950 A1 WO2022193950 A1 WO 2022193950A1
Authority
WO
WIPO (PCT)
Prior art keywords
roll
roll surface
surface image
image capturing
work
Prior art date
Application number
PCT/CN2022/078794
Other languages
French (fr)
Chinese (zh)
Inventor
石桂芬
王金涛
何永辉
彭铁根
梁爽
宗德祥
杨水山
Original Assignee
宝山钢铁股份有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 宝山钢铁股份有限公司 filed Critical 宝山钢铁股份有限公司
Publication of WO2022193950A1 publication Critical patent/WO2022193950A1/en

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/02—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged horizontally
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
    • B21B27/06—Lubricating, cooling or heating rolls
    • B21B27/10—Lubricating, cooling or heating rolls externally
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
    • B21B38/12—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring roll camber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/02—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged horizontally
    • B21B2013/021—Twin mills
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
    • B21B27/06—Lubricating, cooling or heating rolls
    • B21B27/10—Lubricating, cooling or heating rolls externally
    • B21B2027/103—Lubricating, cooling or heating rolls externally cooling externally

Definitions

  • the invention relates to an on-line detection technology of the roll surface of a hot-rolled work roll, and more particularly, to a roll surface image capturing device and system, and an on-line detection system and method of the roll surface.
  • rolls are the most important consumable components of steel rolling equipment.
  • the online detection of the state of the oxide film on the surface of the roll has a strong support for the research on the formation and peeling mechanism of the oxide film on the surface of the roll and the process improvement in line with on-site production.
  • process blocking the deterioration trend of the oxide film on the surface of the roll can be found in a timely and effective manner, and the quality loss caused by the intrusion of the iron oxide scale on the surface of the strip steel in batches can be avoided.
  • the working temperature is very high (the rolling temperature of the work roll is as high as 1000 °C), and there is high pressure water on the site, the detection equipment is easily damaged and cannot work and detect normally.
  • the purpose of the present invention is to provide a roll surface image photographing device and system, a roll surface on-line detection system and method, which can be realized in a hot tandem rolling mill stand with narrow space and harsh working environment, Effectively protect the online quality inspection equipment of the roll surface of the work roll to ensure the normal test of the work roll by the inspection system.
  • the present invention adopts the following technical solutions:
  • the invention provides a roll surface image capturing device:
  • the roll surface image capturing device is used to obtain the roll surface quality image of the work roll
  • the roll surface image capturing device further comprises a protective box, a camera, a camera window guard and a shutter device;
  • the camera is installed in the protective box body, and a shooting window opposite to the work roll is opened on the protective box body;
  • the camera window guard plate covers the camera window opposite the protective box and the work roll, and is in an open/closed state
  • the shutter device is used to control the opening and closing of the camera window guard.
  • the protective box is a closed structure
  • the camera is designed as a structure that can be pulled out from the protective box as a whole;
  • the cold circulation device is used for cooling the protective box and the camera.
  • the protective box body is made of stainless steel, and sealing rings are provided between the assembling and joint surfaces.
  • the material of the sealing ring is nitrile rubber.
  • the cold circulation device adopts water cooling and/or compressed air cooling
  • the shooting window includes a camera window and a light source window.
  • the shutter device is controlled by a PLC controller, and the shutter device drives the camera window guard to open or close the camera window.
  • the shutter device drives the opening or closing of the window guard through a rack and pinion swinging cylinder, and the lift angle of the guard is 75°.
  • the present invention also provides a roll surface image capturing system with a lifting function, comprising the roll surface image capturing device and a servo lifting device disposed below the roll surface image capturing device.
  • the servo lifting device includes a guide rail and a servo electric cylinder; the servo electric cylinder is used to drive the protective box to move up and down along the guide rail.
  • the guide rail is a stainless steel cylindrical guide rail.
  • the present invention further provides an on-line detection system for the roll surface of the work roll.
  • the on-line detection system for the roll surface of the work roll is based on the roll surface image capturing system with the lifting function, and includes a production logistics computer, and a production logistics computer for receiving the production logistics.
  • a multi-function card for sending information from a computer;
  • the upper computer of the roll surface detection system is used to receive the rolling information of the multi-function card and control the capture device to obtain the roll surface image of the work roll;
  • the PLC controller is used to receive the rolling information of the multi-function card, and control the lifting movement of the servo lifting device, and control the mechanical shutter device to drive the opening and closing movement of the guard plate.
  • the rolling information includes a rolling end signal and roll diameter information of the work rolls to be detected.
  • the upper computer of the roll surface detection system controls the ingesting device according to the rolling end signal
  • the PLC controller controls the mechanical shutter device according to the rolling end signal; and controls the servo lifting device according to the roll diameter information of the work roll to be detected.
  • the present invention further provides an on-line detection method for the roll surface of the work roll:
  • the production logistics computer in the on-line detection system of the work rolls will send the rolling end signal and the diameter of the work rolls to be detected. sending information to the multifunction card;
  • the PLC controller controls the servo lifting device to move the capturing device to the shooting position according to the roll diameter information of the work roll to be detected;
  • the PLC controller controls the mechanical shutter device to drive the guard plate to open according to the rolling end signal
  • the upper computer of the roll surface detection system controls the capture device to capture the roll surface image of the work roll according to the rolling end signal
  • the upper computer of the roll surface detection system stops the shooting of the capture device, and the PLC controller controls the mechanical shutter device to close the guard plate, and the detection work stops.
  • 20 represents the 20-round image of the work roll each time
  • r represents the radius of the work roll
  • v represents the rotational speed of the work roll
  • T represents the interval time between two rolls of the steel coil.
  • the photographing device is moved to a photographing position, specifically, the photographing point of the photographing device is located at the centerline of the work roll.
  • the invention provides a roll surface image capturing device and system, a roll surface online detection system and method, and the protection system of the hot roll surface online detection device is installed on the production site to protect the roll surface quality online detection equipment on the production line.
  • the protective mechanism opens the shooting window, which can take a clear image of the surface of the roll under the condition of ensuring that there is no high-pressure water, so as to realize the accurate detection of the surface quality of the roll.
  • it can effectively protect the high temperature, water vapor and oil pollution on the site, effectively protect the on-site testing equipment, and improve the quality and life of the product.
  • Fig. 1 is the on-site layout schematic diagram of the roll surface image capturing device and system and the roll surface online detection system of the present invention
  • FIG. 2 is a schematic view of the camera window guard in a closed state in the roll surface image camera of the present invention
  • FIG. 3 is a schematic view of the open state of the camera window guard in the roll surface image camera of the present invention.
  • Fig. 4 is the schematic diagram of control information transmission in the roll surface online detection method of the present invention.
  • Fig. 5 is the working flow chart of the using method of the roll surface on-line detection system of the present invention.
  • FIG. 6 is a schematic diagram of Embodiment 5 of the online detection system and method of the roll surface of the present invention.
  • Embodiment 1 as shown in FIG. 1, the present invention provides a roll surface image capturing device 100, the roll surface image capturing device 100 is used to obtain work rolls (see the upper work roll 1 and the lower work roll in FIG. 1). 2)
  • the roll surface quality image, the roll surface image photographing device 100 is set as a closed structure as a whole, and at the same time, the roll surface image photographing device 100 is provided with a cold circulation device, which can prevent water, oil, and steam pollution at the work roll rolling site. Unfavorable conditions such as heat dissipation.
  • the roll surface image capturing device 100 of the present invention further includes a protective box 3 , a camera, a camera window guard 4 and a shutter device 5 .
  • the camera is used to obtain the roll surface quality image of the work roll.
  • the camera is installed in the protective box 3.
  • the protective box 3 is used to protect the camera.
  • the protective box 3 is provided with a shooting window 7 opposite to the work roll.
  • the camera window guard 4 covers an outer side surface of the protective box 3 opposite to the work roll, and is in an open/closed state.
  • the shutter device 5 is used to drive the opening or closing of the camera window guard 4 .
  • the protective box body 3 is set as a closed structure to prevent unfavorable conditions such as water, oil and steam pollution and heat dissipation.
  • the camera is designed as a structure that can be pulled out of the protective box 3 as a whole, so that the camera can be pulled out of the protective box 3 as a whole for adjustment and replacement operations.
  • the cold circulation device is used to cool and protect the protective box 3 and the camera.
  • the protective box body 3 is made of stainless steel, and there are sealing rings between the assembling and joint surfaces.
  • the camera includes a light source bracket and a camera 6 arranged on the light source bracket.
  • a photographing window 7 is provided on the outer surface of the protective box 3 facing the work roll, and the photographing window 7 corresponds to the position of the lens of the camera 6 , so that the lens of the camera 6 can obtain the work through the photographing window 7 Surface quality image of the roll.
  • the camera window guard 4 is used to protect the camera window 7. In the rolling process, in order to avoid being affected by the strip steel up to 1000°C, the corrosive cooling water and the peeled iron oxide scale, the camera window is not in the working state. 7 is protected by the camera window guard 4 .
  • the photographing window 7 includes a camera window and a light source window.
  • the shutter device 5 is controlled by the PLC controller 14 , and the shutter device 5 drives the photographing window guard 4 to open or close the photographing window 7 .
  • the shutter device 5 drives the camera window guard 4 to open or close the shooting window 7 through the rack and pinion swinging cylinder. Only when the camera 6 is in the working state, the shutter device 5 drives the camera window guard 4 to lift and move, and the camera 6 shoots and detects. In normal operation, the lifting movement of the camera window guard 4 is driven by the shutter device 5 .
  • the lift angle of the camera window guard 4 can reach 75°.
  • the camera window shield 4 is embedded with a sealing device, which isolates the protective box 3 from external water and vapor in a closed state. Only when the roll surface defect of the work roll needs to be detected after a roll of strip steel is rolled, the shutter device 5 drives the camera window guard 4 to lift up and move.
  • the cold cycle unit can be cooled with water 8 and/or compressed air.
  • the water cooling 8 provides circulating cooling water below -10°C, and the protective box 3 and the camera 6 are effectively cooled and protected by the cold water coil.
  • Compressed air cooling is used to cool and protect the light source bracket to ensure stable operation of the light source bracket.
  • Embodiment 2 please refer to FIG. 1 again, the present invention also provides a roll surface image capturing system with a lifting function, including the roll surface image capturing device 100 in Embodiment 1, and a roll surface image capturing device 100 provided below The servo lifting device 200.
  • the roll surface image capturing device 100 includes a protective box 3 , a camera, a camera window guard 4 and a shutter device 5 .
  • the camera is used to obtain the roll surface quality image of the work roll, the camera is installed in the protective box 3, the protective box 3 is used to protect the camera, and the protective box 3 is provided with a shooting window 7 opposite to the work roll.
  • the camera window guard 4 covers an outer side surface of the protective box 3 opposite to the work roll, and is in an open/closed state.
  • the shutter device 5 is used to drive the opening or closing of the camera window guard 4 .
  • the servo lifting device 200 includes a guide rail 9 and a servo electric cylinder.
  • the servo electric cylinder is used to drive the protective box 3 to move up and down along the guide rail 9, thereby controlling the camera in the protective box 3 to adjust the corresponding camera according to the actual roll diameter of the work roll to be measured. high.
  • the work rolls mainly include an upper work roll 1 and a lower work roll 2.
  • the strip steel 10 passes between the fingers of the upper work roll 1 and the lower work roll 2.
  • the detection point of the capture device 100 is located at the center line of the upper work roll 1. Therefore, to replace work rolls with different roll diameters, it is necessary to adjust the height of the detection point of the pickup device 100 accordingly.
  • the guide rail 9 adopts a stainless steel cylindrical guide rail.
  • Embodiment 3 please refer to FIG. 1 to FIG. 4 again, the present invention further provides an online detection system for the roll surface of the work roll, and the online detection system for the roll surface of the work roll is based on the image capture of the roll surface with the lifting function in the embodiment 2.
  • the system includes a production logistics computer 11 and a multifunctional card 12 for receiving the information sent by the production logistics computer 11 .
  • the upper computer 13 of the roll surface detection system is used to receive the rolling information of the multi-function card 12 and control the camera in the roll surface image capturing device 100 to obtain the roll surface quality image of the work roll;
  • the PLC controller 14 is used to receive the rolling information of the multi-function card 12, control the lifting motion of the servo lifting device 200, and control the shutter device 5 in the roll surface image capturing device 100 to drive the opening or closing of the camera window guard 4 Shoot Windows 7.
  • the rolling information includes the rolling end signal and the roll diameter information of the work rolls to be detected.
  • the upper computer 13 of the roll surface detection system controls the camera in the roll surface image capturing device 100 to start shooting/stop shooting according to the rolling end signal.
  • the PLC controller 14 controls the shutter device 5 to drive the camera window guard 4 to open or close the photographing window 7 according to the rolling end signal, so that the photographing window 7 is in an open or closed state; the PLC controller 14 is based on the diameter of the work roll to be detected information, control the ascending/descending movement of the servo lifting device 200, so as to move the roll surface image photographing device 100 as a whole to the photographing position corresponding to the roll diameter of the work roll, so as to ensure that the camera can photograph the roll surface centerline position of the upper work roll 1 .
  • the roll surface image capturing system with a lifting function includes the roll surface image capturing device 100 in the first embodiment, and a servo elevating device 200 provided below the roll surface image capturing device 100.
  • the servo lifting device 200 includes a guide rail 9 and a servo electric cylinder.
  • the servo electric cylinder is used to drive the protective box 3 to move up and down along the guide rail 9, thereby controlling the camera in the protective box 3 to adjust the corresponding camera according to the actual roll diameter of the work roll to be measured. high.
  • Embodiment 4 also provides a method for online detection of the roll surface of the work roll, using the online detection system of the roll surface of the work roll in Embodiment 3, when the production logistics computer 11 sends
  • the PLC controller 14 controls the servo lifting device 200 to drive the roll surface image capturing device 100 to move as a whole, so as to ensure that the camera 6 in the camera can capture the roll surface centerline position of the upper work roll 1 .
  • the high-pressure water will stop. At this time, the roll surface of the upper work roll 1 can be photographed, and the production logistics computer 11 will send the rolling end signal and the roll diameter information of the work roll to be tested to the multi-
  • the function card 12 sends instructions to the PLC controller 14 and the upper computer 13 of the roll surface detection system respectively by the multi-function card 12 to send the rolling end signal and the roll diameter information of the work roll to be detected.
  • the PLC controller 14 controls the shutter device 5 to open the camera window guard 4, and the servo lifting device 200 drives the roll surface image camera device 100 to move to the shooting position as a whole according to the roll diameter information of the work roll to be detected sent by the PLC controller 14.
  • the upper computer 13 of the roll surface detection system triggers the camera 6 in the camera to perform photographing and detection work.
  • the interval time between two steel coils is T
  • the radius of the work roll is set to be r
  • the rotational speed of the work roll to be v
  • each time the image of the work roll rotates 20 times is taken for detection, which can not only ensure that the working time of the camera 6 is less than the interval time, but also ensure that sufficient protection control is obtained.
  • the upper computer 13 of the roller surface detection system sends a stop photographing instruction to the camera 6, and the PLC controller 14 controls the shutter device 5 to close the photographing window guard 4, and the current detection stops.
  • the work roll surface online detection system is based on the roll surface image capturing system with lifting function in the second embodiment, and includes a production logistics computer 11 and a multifunctional card 12 for receiving information from the production logistics computer 11 .
  • the upper computer 13 of the roll surface detection system is used to receive the rolling information of the multi-function card 12 and control the camera in the roll surface image capturing device 100 to obtain the roll surface quality image of the work roll;
  • the PLC controller 14 is used to receive the rolling information of the multi-function card 12, control the lifting motion of the servo lifting device 200, and control the shutter device 5 in the roll surface image capturing device 100 to drive the opening or closing of the camera window guard 4 Shoot Windows 7.
  • Example 5 as shown in FIG. 6 , the on-line detection system of the work roll surface of the present invention is applied to a continuous production hot-rolled strip production line, and two sets of the on-line detection system of the work roll surface of the present invention are arranged to face the upper work rolls respectively.
  • the lower work roll 2 is imaged, and the quality image of the roll surface is processed and analyzed to detect quality problems such as the peeling of the oxide film on the roll surface.
  • the process of the online detection method for the roll surface of the work roll of the present invention is as follows: the detection objects are the upper work roll 1 and the lower work roll 2 .
  • the detection window period When the rolling of a strip is completed and the next strip has not yet arrived, it is the detection window period.
  • the secondary computer system (L2) sends a rolling end signal to the PLC controller 14.
  • the PLC controller 14 controls the shutter device 5 to open the camera window guard 4, and simultaneously triggers the camera 6 in the camera.
  • the camera 6 continuously shoots the roll surface of the upper work roll 1/lower work roll 2 in a full range, and transmits the roll surface quality image to the image acquisition unit 15, and the image acquisition unit 15 sends the collected roll surface quality image to the
  • the image processing unit 16 after the image processing unit 16 processes and analyzes the image, sends the image defect information to the storage and display unit 17, stores the defect image, and displays the defect on the interface terminal.
  • the present invention adopts the roll surface image capturing device 100 with sufficient rigidity, strength, shock resistance, and temperature control functions, considering the harsh on-site environment and the relatively small installation space for hot roll surface detection.
  • the light source bracket, camera 6 and other related components are sealed and cooled by the protective box 3 in the roll surface image capturing device 100. Only when the roll surface of the work roll needs to be detected, let the light source bracket project light and let the camera 6 take pictures. Therefore, the roll surface image capturing device 100 can work reliably, safely and normally, and has a protective function to prevent water, oil and vapor from contaminating the camera.
  • the invention can effectively protect the online quality inspection equipment of the roll surface of the work roll in the narrow space of the hot tandem mill stand, and protect the optical systems such as cameras and light sources from being infringed by high temperature, water vapor and emulsion.
  • the "eyelid" type camera window guard 4 combined with the rolling information, it is controlled by the PLC controller 14, so that it can be opened and closed in time, effectively protecting the testing equipment from the trouble of high-pressure water, and can accurately detect the roll surface defect.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)

Abstract

A roller surface image capturing apparatus, which is used for acquiring roller surface quality images of operating rollers (1, 2), is configured to be of a closed structure, and is internally provided with a cold circulating apparatus (8). A roller surface image capturing system with a lifting function, the system comprising a roller surface image capturing apparatus (100), and a servo lifting apparatus (200) arranged below the roller surface image capturing apparatus (100). An online roller surface testing system and method for an operating roller, the system comprising a production logistics computer (11), a multifunctional card (12), which is used for receiving information sent by the production logistics computer, a roller surface testing system upper computer (13), which is used for receiving rolling information of the multifunctional card, and controlling a roller surface image capturing apparatus to acquire a roller surface image of an operating roller, and a PLC (14), which is used for receiving the rolling information of the multifunctional card, controlling a servo lifting apparatus to ascend and descend, and controlling a valve apparatus (5) to drive a photographic window guard plate (4) to open and close. By means of the present invention, an online roller surface testing device for an operating roller is effectively protected in a rack of a hot continuous rolling mill having a narrow space.

Description

轧辊表面图像拍摄装置及***、辊面在线检测***及方法Roll surface image capturing device and system, roll surface online detection system and method 技术领域technical field
本发明涉及热轧工作辊的辊面在线检测技术，更具体地说，涉及一种轧辊表面图像拍摄装置及***、辊面在线检测***及方法。The invention relates to an on-line detection technology of the roll surface of a hot-rolled work roll, and more particularly, to a roll surface image capturing device and system, and an on-line detection system and method of the roll surface.
背景技术Background technique
轧辊作为轧钢工业的重要工具，是轧钢设备的最主要消耗部件，随着产钢量的增加，轧辊消耗量迅速增加，各大钢铁企业对于轧辊的检测也愈加重视。轧辊表面氧化膜的状态在线检测，对轧辊表面氧化膜的形成及剥落机理的研究及切合现场生产的工艺改进具有强有力的支持作用。另外，从过程阻断来讲，可以及时、有效发现轧辊表面氧化膜的恶化趋势，避免产生批量的带钢表面氧化铁皮压入缺陷造成质量损失。As an important tool in the steel rolling industry, rolls are the most important consumable components of steel rolling equipment. With the increase of steel production, the consumption of rolls increases rapidly, and major iron and steel enterprises pay more and more attention to the detection of rolls. The online detection of the state of the oxide film on the surface of the roll has a strong support for the research on the formation and peeling mechanism of the oxide film on the surface of the roll and the process improvement in line with on-site production. In addition, in terms of process blocking, the deterioration trend of the oxide film on the surface of the roll can be found in a timely and effective manner, and the quality loss caused by the intrusion of the iron oxide scale on the surface of the strip steel in batches can be avoided.
目前，国内各大钢厂都开始了辊面检测，在目前的轧辊质量检测中，大多数是实现对冷轧辊面检测，采用的技术有超声波、涡流和视觉检测等方法，通过这些方法可以实现对轧辊面的裂纹等检测。At present, major steel mills in China have started roll surface inspection. In the current roll quality inspection, most of them are to realize the inspection of cold rolled roll surface. The technologies used include ultrasonic, eddy current and visual inspection methods. Detection of cracks on the roll surface, etc.
由于轧辊工作现场环境恶劣，工作温度又非常高(工作辊轧制温度高达1000℃)，而且现场又有高压水等，检测设备极易被损坏，不能正常工作和检测。Due to the harsh working environment of the roll, the working temperature is very high (the rolling temperature of the work roll is as high as 1000 ℃), and there is high pressure water on the site, the detection equipment is easily damaged and cannot work and detect normally.
发明内容SUMMARY OF THE INVENTION
针对现有技术中存在的上述缺陷，本发明的目的是提供一种轧辊表面图像拍摄装置及***、辊面在线检测***及方法，实现在空间狭小且工作环境恶劣的热连轧机机架内，对工作辊的辊面在线质量检测设备进行有效防护，以保证检测***对工作辊正常测试。In view of the above-mentioned defects in the prior art, the purpose of the present invention is to provide a roll surface image photographing device and system, a roll surface on-line detection system and method, which can be realized in a hot tandem rolling mill stand with narrow space and harsh working environment, Effectively protect the online quality inspection equipment of the roll surface of the work roll to ensure the normal test of the work roll by the inspection system.
为实现上述目的，本发明采用如下技术方案：To achieve the above object, the present invention adopts the following technical solutions:
本发明提供了一种轧辊表面图像拍摄装置：The invention provides a roll surface image capturing device:
所述轧辊表面图像拍摄装置用以获取工作轧辊的辊面质量图像，The roll surface image capturing device is used to obtain the roll surface quality image of the work roll,
且为密闭结构，所述轧辊表面图像拍摄装置内设置有冷循环装置。And it is a closed structure, and a cold circulation device is arranged in the roll surface image capturing device.
较佳的，所述轧辊表面图像拍摄装置进一步包括防护箱体、摄摄像机机、摄像窗口护板和活门装置；Preferably, the roll surface image capturing device further comprises a protective box, a camera, a camera window guard and a shutter device;
所述摄像机安设于所述防护箱体内，所述防护箱体上开设有与工作轧辊相对的拍摄视窗；The camera is installed in the protective box body, and a shooting window opposite to the work roll is opened on the protective box body;
所述摄像窗口护板覆盖于所述防护箱体与工作轧辊相对的所述拍摄视窗，并呈开启/关闭状态；The camera window guard plate covers the camera window opposite the protective box and the work roll, and is in an open/closed state;
所述活门装置用以控制所述摄像窗口护板的启闭。The shutter device is used to control the opening and closing of the camera window guard.
较佳的，所述防护箱体为密闭结构，Preferably, the protective box is a closed structure,
所述摄像机设计为一可从所述防护箱体内整体抽拉的结构；The camera is designed as a structure that can be pulled out from the protective box as a whole;
所述冷循环装置用以对所述防护箱体、所述摄像机进行冷却。The cold circulation device is used for cooling the protective box and the camera.
较佳的，所述防护箱体采用不锈钢材质制成，其装配接合面之间均配有密封圈。Preferably, the protective box body is made of stainless steel, and sealing rings are provided between the assembling and joint surfaces.
较佳的，所述密封圈的材质采用丁晴橡胶。Preferably, the material of the sealing ring is nitrile rubber.
较佳的，所述冷循环装置采用水冷却和/或压缩空气冷却；Preferably, the cold circulation device adopts water cooling and/or compressed air cooling;
较佳的，所述拍摄视窗包括相机视窗和光源视窗。Preferably, the shooting window includes a camera window and a light source window.
较佳的，所述活门装置由PLC控制器控制，所述活门装置驱动所述摄像窗口护板的打开或关闭所述拍摄视窗。Preferably, the shutter device is controlled by a PLC controller, and the shutter device drives the camera window guard to open or close the camera window.
较佳的，所述活门装置通过齿轮齿条摆动气缸驱动所述窗口护板的开起或闭合，所述护板的抬起角度为75°。Preferably, the shutter device drives the opening or closing of the window guard through a rack and pinion swinging cylinder, and the lift angle of the guard is 75°.
本发明还提供了一种具有升降功能的轧辊表面图像拍摄***，包括所述的轧辊表面图像拍摄装置，以及设于所述轧辊表面图像拍摄装置下方的伺服升降装置。The present invention also provides a roll surface image capturing system with a lifting function, comprising the roll surface image capturing device and a servo lifting device disposed below the roll surface image capturing device.
较佳的，所述伺服升降装置包括导轨和伺服电动缸；所述伺服电动缸用以驱动所述防护箱体沿所述导轨的升降运动。Preferably, the servo lifting device includes a guide rail and a servo electric cylinder; the servo electric cylinder is used to drive the protective box to move up and down along the guide rail.
较佳的，所述导轨为不锈钢圆柱导轨。Preferably, the guide rail is a stainless steel cylindrical guide rail.
本发明再提供了一种工作辊辊面在线检测***，该工作辊辊面在线检测***基于所述的具有升降功能的轧辊表面图像拍摄***，包括生产物流计算机、以及用以接收所述生产物流计算机发出信息的多功能卡；The present invention further provides an on-line detection system for the roll surface of the work roll. The on-line detection system for the roll surface of the work roll is based on the roll surface image capturing system with the lifting function, and includes a production logistics computer, and a production logistics computer for receiving the production logistics. A multi-function card for sending information from a computer;
辊面检测***上位机，用以接收所述多功能卡的轧制信息，并控制所述摄取装置获取工作辊的辊面图像；The upper computer of the roll surface detection system is used to receive the rolling information of the multi-function card and control the capture device to obtain the roll surface image of the work roll;
PLC控制器，用以接收所述多功能卡的轧制信息，并控制所述伺服升降装置的 升降运动，以及控制所述机械活门装置驱动所述护板的启闭运动。The PLC controller is used to receive the rolling information of the multi-function card, and control the lifting movement of the servo lifting device, and control the mechanical shutter device to drive the opening and closing movement of the guard plate.
较佳的，所述轧制信息包括轧制结束信号、待检测工作辊的辊径信息。Preferably, the rolling information includes a rolling end signal and roll diameter information of the work rolls to be detected.
较佳的，所述辊面检测***上位机根据所述轧制结束信号，控制所述摄取装置；Preferably, the upper computer of the roll surface detection system controls the ingesting device according to the rolling end signal;
所述PLC控制器根据所述轧制结束信号，控制所述机械活门装置；根据所述待检测工作辊的辊径信息，控制所述伺服升降装置。The PLC controller controls the mechanical shutter device according to the rolling end signal; and controls the servo lifting device according to the roll diameter information of the work roll to be detected.
本发明再提供了一种工作辊辊面在线检测方法：The present invention further provides an on-line detection method for the roll surface of the work roll:
当钢卷轧制完成一卷，高压水停止，此时由所述的工作辊辊面在线检测***中的所述生产物流计算机将所述轧制结束信号和所述待检测工作辊的辊径信息发送给所述多功能卡；When the rolling of the steel coil is completed, the high-pressure water stops. At this time, the production logistics computer in the on-line detection system of the work rolls will send the rolling end signal and the diameter of the work rolls to be detected. sending information to the multifunction card;
所述PLC控制器根据所述待检测工作辊的辊径信息，控制所述伺服升降装置将所述摄取装置移动至拍摄位置；The PLC controller controls the servo lifting device to move the capturing device to the shooting position according to the roll diameter information of the work roll to be detected;
所述PLC控制器根据所述轧制结束信号，控制所述机械活门装置驱动所述护板打开；The PLC controller controls the mechanical shutter device to drive the guard plate to open according to the rolling end signal;
所述辊面检测***上位机根据所述轧制结束信号，控制所述摄取装置拍摄获取工作辊的辊面图像；The upper computer of the roll surface detection system controls the capture device to capture the roll surface image of the work roll according to the rolling end signal;
所述工作辊的辊面图像获取结束后，由所述辊面检测***上位机停止所述摄取装置的拍摄，所述PLC控制器控制所述机械活门装置关闭所述护板，检测工作停止。After the acquisition of the roll surface image of the work roll is completed, the upper computer of the roll surface detection system stops the shooting of the capture device, and the PLC controller controls the mechanical shutter device to close the guard plate, and the detection work stops.
较佳的，所述摄取装置的拍摄周期t＝20(2πr/v)，t＜T；Preferably, the photographing period of the photographing device is t=20 (2πr/v), t<T;
上式中，20表示每次拍摄所述工作辊20周的图像，r表示所述工作辊的半径，v表示所述工作辊的转速，T表示两卷所述钢卷之间的间隔时间。In the above formula, 20 represents the 20-round image of the work roll each time, r represents the radius of the work roll, v represents the rotational speed of the work roll, and T represents the interval time between two rolls of the steel coil.
较佳的，所述摄取装置移动至拍摄位置，具体为所述摄取装置的拍摄点位于所述工作辊的中心线位置。Preferably, the photographing device is moved to a photographing position, specifically, the photographing point of the photographing device is located at the centerline of the work roll.
本发明所提供的一种轧辊表面图像拍摄装置及***、辊面在线检测***及方法，热轧辊面在线检测装置的防护***安装于生产现场，对生产线上的轧辊表面质量在线检测设备进行防护。在带钢轧制间隙，防护机构打开拍摄窗口，可以在保证没有高压水的情况下，拍摄出清晰的轧辊表面图像，实现对轧辊表面质量的精确检测。同时，还能有效防护现场的高温、水汽和油污，有效保护现场检测设备，提升产品使用质量和寿命。The invention provides a roll surface image capturing device and system, a roll surface online detection system and method, and the protection system of the hot roll surface online detection device is installed on the production site to protect the roll surface quality online detection equipment on the production line. In the strip rolling gap, the protective mechanism opens the shooting window, which can take a clear image of the surface of the roll under the condition of ensuring that there is no high-pressure water, so as to realize the accurate detection of the surface quality of the roll. At the same time, it can effectively protect the high temperature, water vapor and oil pollution on the site, effectively protect the on-site testing equipment, and improve the quality and life of the product.
附图说明Description of drawings
图1是本发明轧辊表面图像拍摄装置及***、辊面在线检测***的现场布置示意图；Fig. 1 is the on-site layout schematic diagram of the roll surface image capturing device and system and the roll surface online detection system of the present invention;
图2是本发明轧辊表面图像拍摄装置中摄像窗口护板处于关闭状态的示意图；2 is a schematic view of the camera window guard in a closed state in the roll surface image camera of the present invention;
图3是本发明轧辊表面图像拍摄装置中摄像窗口护板处于打开状态的示意图；3 is a schematic view of the open state of the camera window guard in the roll surface image camera of the present invention;
图4是本发明辊面在线检测方法中控制信息传输的示意图；Fig. 4 is the schematic diagram of control information transmission in the roll surface online detection method of the present invention;
图5是本发明辊面在线检测***的使用方法的工作流程图；Fig. 5 is the working flow chart of the using method of the roll surface on-line detection system of the present invention;
图6是本发明辊面在线检测***及方法实施例5的示意图。FIG. 6 is a schematic diagram of Embodiment 5 of the online detection system and method of the roll surface of the present invention.
具体实施方式Detailed ways
为了能更好地理解本发明的上述技术方案，下面结合附图和实施例进一步说明本发明的技术方案。In order to better understand the above technical solutions of the present invention, the technical solutions of the present invention are further described below with reference to the accompanying drawings and embodiments.
实施例1，请结合图1所示，本发明所提供的一种轧辊表面图像拍摄装置100，该轧辊表面图像拍摄装置100用以获取工作轧辊(见图1中上工作辊1和下工作辊2)的辊面质量图像，轧辊表面图像拍摄装置100整体设置为密闭结构，同时，轧辊表面图像拍摄装置内设置100有冷循环装置，在工作辊轧制现场能够防止水、油、汽污染、散热等不利条件。 Embodiment 1, as shown in FIG. 1, the present invention provides a roll surface image capturing device 100, the roll surface image capturing device 100 is used to obtain work rolls (see the upper work roll 1 and the lower work roll in FIG. 1). 2) The roll surface quality image, the roll surface image photographing device 100 is set as a closed structure as a whole, and at the same time, the roll surface image photographing device 100 is provided with a cold circulation device, which can prevent water, oil, and steam pollution at the work roll rolling site. Unfavorable conditions such as heat dissipation.
本发明轧辊表面图像拍摄装置100进一步包括防护箱体3、摄像机、摄像窗口护板4和活门装置5。The roll surface image capturing device 100 of the present invention further includes a protective box 3 , a camera, a camera window guard 4 and a shutter device 5 .
摄像机用以获取工作轧辊的辊面质量图像，摄像机安设于防护箱体3内，防护箱体3用以防护摄像机，防护箱体3上开设有与工作轧辊相对的拍摄视窗7。The camera is used to obtain the roll surface quality image of the work roll. The camera is installed in the protective box 3. The protective box 3 is used to protect the camera. The protective box 3 is provided with a shooting window 7 opposite to the work roll.
摄像窗口护板4覆盖于防护箱体3与工作轧辊相对的一外侧面，并呈开启/关闭状态。The camera window guard 4 covers an outer side surface of the protective box 3 opposite to the work roll, and is in an open/closed state.
活门装置5用以驱动摄像窗口护板4的开启或关闭。The shutter device 5 is used to drive the opening or closing of the camera window guard 4 .
防护箱体3设置为密闭结构，防止水、油、汽污染、散热等不利条件。The protective box body 3 is set as a closed structure to prevent unfavorable conditions such as water, oil and steam pollution and heat dissipation.
摄像机设计为一可从防护箱体3内整体抽拉的结构，能使摄像机从防护箱体3内整体抽出来进行调整和更换作业。The camera is designed as a structure that can be pulled out of the protective box 3 as a whole, so that the camera can be pulled out of the protective box 3 as a whole for adjustment and replacement operations.
冷循环装置用以对防护箱体3、摄像机进行冷却防护。The cold circulation device is used to cool and protect the protective box 3 and the camera.
防护箱体3采用不锈钢材质制成，其装配接合面之间均配有密封圈，密封圈采 用丁晴橡胶的O型密封圈，能达到较佳的密封效果。The protective box body 3 is made of stainless steel, and there are sealing rings between the assembling and joint surfaces.
摄像机包括光源支架、以及设于光源支架上的照相机6。The camera includes a light source bracket and a camera 6 arranged on the light source bracket.
请结合图2和图3所示，防护箱体3朝向工作轧辊的外侧面上设有拍摄视窗7，拍摄视窗7与照相机6的镜头位置对应，使得照相机6的镜头透过拍摄视窗7获取工作轧辊的辊面质量图像。Please refer to FIG. 2 and FIG. 3 , a photographing window 7 is provided on the outer surface of the protective box 3 facing the work roll, and the photographing window 7 corresponds to the position of the lens of the camera 6 , so that the lens of the camera 6 can obtain the work through the photographing window 7 Surface quality image of the roll.
摄像窗口护板4用以防护拍摄视窗7，在轧制过程中，为了避免受到高达1000℃的带钢、具有腐蚀性的冷却水和脱落的氧化铁皮的影响，在非工作状态时，拍摄视窗7是被摄像窗口护板4防护起来的。The camera window guard 4 is used to protect the camera window 7. In the rolling process, in order to avoid being affected by the strip steel up to 1000°C, the corrosive cooling water and the peeled iron oxide scale, the camera window is not in the working state. 7 is protected by the camera window guard 4 .
拍摄视窗7包括相机视窗和光源视窗。The photographing window 7 includes a camera window and a light source window.
活门装置5由PLC控制器14控制，活门装置5驱动摄像窗口护板4的打开或关闭拍摄视窗7。The shutter device 5 is controlled by the PLC controller 14 , and the shutter device 5 drives the photographing window guard 4 to open or close the photographing window 7 .
活门装置5通过齿轮齿条摆动气缸驱动摄像窗口护板4的打开或关闭拍摄视窗7，只有当照相机6处于工作状态时，活门装置5驱动摄像窗口护板4抬起运动，照相机6拍摄和检测正常工作，摄像窗口护板4的抬起运动由活门装置5来驱动进行。The shutter device 5 drives the camera window guard 4 to open or close the shooting window 7 through the rack and pinion swinging cylinder. Only when the camera 6 is in the working state, the shutter device 5 drives the camera window guard 4 to lift and move, and the camera 6 shoots and detects. In normal operation, the lifting movement of the camera window guard 4 is driven by the shutter device 5 .
摄像窗口护板4的抬起角度可达到75°。The lift angle of the camera window guard 4 can reach 75°.
摄像窗口护板4内嵌有密封装置，在处于闭合的状态下将防护箱体3与外部的水、汽隔绝。只有当一卷带钢轧完后，需要检测工作辊的辊面缺陷时，活门装置5再驱动摄像窗口护板4抬起运动。The camera window shield 4 is embedded with a sealing device, which isolates the protective box 3 from external water and vapor in a closed state. Only when the roll surface defect of the work roll needs to be detected after a roll of strip steel is rolled, the shutter device 5 drives the camera window guard 4 to lift up and move.
冷循环装置可采用水冷却8和/或压缩空气冷却。The cold cycle unit can be cooled with water 8 and/or compressed air.
水冷却8提供-10℃以下的循环冷却水，由冷水盘管对防护箱体3、照相机6进行有效冷却保护。The water cooling 8 provides circulating cooling water below -10°C, and the protective box 3 and the camera 6 are effectively cooled and protected by the cold water coil.
压缩空气冷却用以对光源支架进行冷却保护，确保光源支架稳定工作。Compressed air cooling is used to cool and protect the light source bracket to ensure stable operation of the light source bracket.
实施例2，再请参考图1，本发明还提供了一种具有升降功能的轧辊表面图像拍摄***，包括实施例1中的轧辊表面图像拍摄装置100、以及设于轧辊表面图像拍摄装置100下方的伺服升降装置200。 Embodiment 2, please refer to FIG. 1 again, the present invention also provides a roll surface image capturing system with a lifting function, including the roll surface image capturing device 100 in Embodiment 1, and a roll surface image capturing device 100 provided below The servo lifting device 200.
轧辊表面图像拍摄装置100包括防护箱体3、摄像机、摄像窗口护板4和活门装置5。The roll surface image capturing device 100 includes a protective box 3 , a camera, a camera window guard 4 and a shutter device 5 .
摄像机用以获取工作轧辊的辊面质量图像，摄像机安设于防护箱体3内，防护 箱体3用以防护摄像机，防护箱体3上开设有与工作轧辊相对的拍摄视窗7。The camera is used to obtain the roll surface quality image of the work roll, the camera is installed in the protective box 3, the protective box 3 is used to protect the camera, and the protective box 3 is provided with a shooting window 7 opposite to the work roll.
摄像窗口护板4覆盖于防护箱体3与工作轧辊相对的一外侧面，并呈开启/关闭状态。The camera window guard 4 covers an outer side surface of the protective box 3 opposite to the work roll, and is in an open/closed state.
活门装置5用以驱动摄像窗口护板4的开启或关闭。The shutter device 5 is used to drive the opening or closing of the camera window guard 4 .
伺服升降装置200包括导轨9和伺服电动缸，伺服电动缸用以驱动防护箱体3沿导轨9的升降运动，从而控制防护箱体3内摄像机根据待测的工作辊实际辊径调节摄像机对应的高度。The servo lifting device 200 includes a guide rail 9 and a servo electric cylinder. The servo electric cylinder is used to drive the protective box 3 to move up and down along the guide rail 9, thereby controlling the camera in the protective box 3 to adjust the corresponding camera according to the actual roll diameter of the work roll to be measured. high.
工作轧辊主要包括上工作辊1和下工作辊2，带钢10从上工作辊1和下工作辊2指间穿过，根据***光路设计，摄取装置100的检测点位于上工作辊1的中线位置，因此，更换不同辊径的工作辊，需对应调节摄取装置100的检测点高度。The work rolls mainly include an upper work roll 1 and a lower work roll 2. The strip steel 10 passes between the fingers of the upper work roll 1 and the lower work roll 2. According to the optical path design of the system, the detection point of the capture device 100 is located at the center line of the upper work roll 1. Therefore, to replace work rolls with different roll diameters, it is necessary to adjust the height of the detection point of the pickup device 100 accordingly.
导轨9采用不锈钢圆柱导轨。The guide rail 9 adopts a stainless steel cylindrical guide rail.
实施例3，再请参考图1至图4，本发明再提供了一种工作辊辊面在线检测***，该工作辊辊面在线检测***基于实施例2中的具有升降功能的轧辊表面图像拍摄***，包括生产物流计算机11、以及用以接收生产物流计算机11发出信息的多功能卡12。 Embodiment 3, please refer to FIG. 1 to FIG. 4 again, the present invention further provides an online detection system for the roll surface of the work roll, and the online detection system for the roll surface of the work roll is based on the image capture of the roll surface with the lifting function in the embodiment 2. The system includes a production logistics computer 11 and a multifunctional card 12 for receiving the information sent by the production logistics computer 11 .
辊面检测***上位机13，用以接收多功能卡12的轧制信息，并控制轧辊表面图像拍摄装置100中的摄像机获取工作轧辊的辊面质量图像；The upper computer 13 of the roll surface detection system is used to receive the rolling information of the multi-function card 12 and control the camera in the roll surface image capturing device 100 to obtain the roll surface quality image of the work roll;
PLC控制器14，用以接收多功能卡12的轧制信息，并控制伺服升降装置200的升降运动，以及控制轧辊表面图像拍摄装置100中的活门装置5驱动摄像窗口护板4的打开或关闭拍摄视窗7。The PLC controller 14 is used to receive the rolling information of the multi-function card 12, control the lifting motion of the servo lifting device 200, and control the shutter device 5 in the roll surface image capturing device 100 to drive the opening or closing of the camera window guard 4 Shoot Windows 7.
轧制信息包括轧制结束信号、以及待检测工作辊的辊径信息。The rolling information includes the rolling end signal and the roll diameter information of the work rolls to be detected.
辊面检测***上位机13根据轧制结束信号，控制轧辊表面图像拍摄装置100中的摄像机开设拍摄/停止拍摄。The upper computer 13 of the roll surface detection system controls the camera in the roll surface image capturing device 100 to start shooting/stop shooting according to the rolling end signal.
PLC控制器14根据轧制结束信号，控制活门装置5驱动摄像窗口护板4的打开或关闭拍摄视窗7，使得拍摄视窗7处于打开或关闭状态；PLC控制器14根据待检测工作辊的辊径信息，控制伺服升降装置200的上升/下降运动，从而将轧辊表面图像拍摄装置100整体移动至与工作轧辊的辊径对应的拍摄位置，以保证摄像机能够拍摄到上工作辊1的辊面中线位置。The PLC controller 14 controls the shutter device 5 to drive the camera window guard 4 to open or close the photographing window 7 according to the rolling end signal, so that the photographing window 7 is in an open or closed state; the PLC controller 14 is based on the diameter of the work roll to be detected information, control the ascending/descending movement of the servo lifting device 200, so as to move the roll surface image photographing device 100 as a whole to the photographing position corresponding to the roll diameter of the work roll, so as to ensure that the camera can photograph the roll surface centerline position of the upper work roll 1 .
具有升降功能的轧辊表面图像拍摄***包括实施例1中的轧辊表面图像拍摄 装置100、以及设于轧辊表面图像拍摄装置100下方的伺服升降装置200。The roll surface image capturing system with a lifting function includes the roll surface image capturing device 100 in the first embodiment, and a servo elevating device 200 provided below the roll surface image capturing device 100.
伺服升降装置200包括导轨9和伺服电动缸，伺服电动缸用以驱动防护箱体3沿导轨9的升降运动，从而控制防护箱体3内摄像机根据待测的工作辊实际辊径调节摄像机对应的高度。The servo lifting device 200 includes a guide rail 9 and a servo electric cylinder. The servo electric cylinder is used to drive the protective box 3 to move up and down along the guide rail 9, thereby controlling the camera in the protective box 3 to adjust the corresponding camera according to the actual roll diameter of the work roll to be measured. high.
实施例4，请结合图4至图5所示，本发明还提供了一种工作辊辊面在线检测方法，采用实施例3中的工作辊辊面在线检测***，当生产物流计算机11发来工作轧辊的辊径调整信息时，PLC控制器14控制伺服升降装置200带动轧辊表面图像拍摄装置100整体移动，以保证摄像机中的照相机6能够拍摄到上工作辊1的辊面中线位置。 Embodiment 4, please refer to FIG. 4 to FIG. 5 , the present invention also provides a method for online detection of the roll surface of the work roll, using the online detection system of the roll surface of the work roll in Embodiment 3, when the production logistics computer 11 sends When the roll diameter of the work roll is adjusted, the PLC controller 14 controls the servo lifting device 200 to drive the roll surface image capturing device 100 to move as a whole, so as to ensure that the camera 6 in the camera can capture the roll surface centerline position of the upper work roll 1 .
钢卷每轧制完成一卷，高压水会停止，此时可以对上工作辊1的辊面进行拍照，由生产物流计算机11把轧制结束信号和待检测工作辊的辊径信息发送给多功能卡12，再由多功能卡12将轧制结束信号和待检测工作辊的辊径信息分别发送指令至PLC控制器14和辊面检测***上位机13。Each time the steel coil is rolled, the high-pressure water will stop. At this time, the roll surface of the upper work roll 1 can be photographed, and the production logistics computer 11 will send the rolling end signal and the roll diameter information of the work roll to be tested to the multi- The function card 12 sends instructions to the PLC controller 14 and the upper computer 13 of the roll surface detection system respectively by the multi-function card 12 to send the rolling end signal and the roll diameter information of the work roll to be detected.
PLC控制器14控制活门装置5打开摄像窗口护板4，伺服升降装置200根据PLC控制器14发来的待检测工作辊的辊径信息带动轧辊表面图像拍摄装置100整体移动至拍摄位置。同时，辊面检测***上位机13接到轧制结束信号后，触发摄像机中的照相机6，进行拍照检测工作。考虑到两卷钢卷之间的间隔时间为T，设工作辊的半径为r，工作辊的转速为v，默认照相机6每次拍摄周期为t＝20(2πr/v)，t＜T；The PLC controller 14 controls the shutter device 5 to open the camera window guard 4, and the servo lifting device 200 drives the roll surface image camera device 100 to move to the shooting position as a whole according to the roll diameter information of the work roll to be detected sent by the PLC controller 14. At the same time, after receiving the rolling end signal, the upper computer 13 of the roll surface detection system triggers the camera 6 in the camera to perform photographing and detection work. Considering that the interval time between two steel coils is T, the radius of the work roll is set to be r, the rotational speed of the work roll to be v, and the default camera 6 each time the shooting cycle is t=20 (2πr/v), t<T;
即，每次拍摄工作辊旋转20周的图像进行检测，这样既可以保证照相机6工作时间小于间隔时间，又能保证得到充分多的防护控制。That is, each time the image of the work roll rotates 20 times is taken for detection, which can not only ensure that the working time of the camera 6 is less than the interval time, but also ensure that sufficient protection control is obtained.
当拍摄周期t到达后，辊面检测***上位机13发送停止拍照指令给照相机6，PLC控制器14控制活门装置5关闭摄像窗口护板4，本次检测停止。When the photographing period t arrives, the upper computer 13 of the roller surface detection system sends a stop photographing instruction to the camera 6, and the PLC controller 14 controls the shutter device 5 to close the photographing window guard 4, and the current detection stops.
工作辊辊面在线检测***基于实施例2中的具有升降功能的轧辊表面图像拍摄***，包括生产物流计算机11、以及用以接收生产物流计算机11发出信息的多功能卡12。The work roll surface online detection system is based on the roll surface image capturing system with lifting function in the second embodiment, and includes a production logistics computer 11 and a multifunctional card 12 for receiving information from the production logistics computer 11 .
辊面检测***上位机13，用以接收多功能卡12的轧制信息，并控制轧辊表面图像拍摄装置100中的摄像机获取工作轧辊的辊面质量图像；The upper computer 13 of the roll surface detection system is used to receive the rolling information of the multi-function card 12 and control the camera in the roll surface image capturing device 100 to obtain the roll surface quality image of the work roll;
PLC控制器14，用以接收多功能卡12的轧制信息，并控制伺服升降装置200 的升降运动，以及控制轧辊表面图像拍摄装置100中的活门装置5驱动摄像窗口护板4的打开或关闭拍摄视窗7。The PLC controller 14 is used to receive the rolling information of the multi-function card 12, control the lifting motion of the servo lifting device 200, and control the shutter device 5 in the roll surface image capturing device 100 to drive the opening or closing of the camera window guard 4 Shoot Windows 7.
实施例5，请结合图6所示，将本发明工作辊辊面在线检测***应用于连续生产的热轧带钢生产线，将本发明工作辊辊面在线检测***布置两套分别对上工作辊1、下工作辊2进行成像，并对辊面质量图像进行处理和分析，以检测出辊面氧化膜脱落等质量问题。根据轧辊沿轴向的长度和每幅图像的尺寸，确定所需要的照相机6数量，保证照相机6能够对上工作辊1、下工作辊2全长范围内进行检测。例，拍摄一幅图像横向尺寸为D，上工作辊1/下工作辊2沿轴向长度为L，则共需要M＝L/D台照相机6。Example 5, as shown in FIG. 6 , the on-line detection system of the work roll surface of the present invention is applied to a continuous production hot-rolled strip production line, and two sets of the on-line detection system of the work roll surface of the present invention are arranged to face the upper work rolls respectively. 1. The lower work roll 2 is imaged, and the quality image of the roll surface is processed and analyzed to detect quality problems such as the peeling of the oxide film on the roll surface. According to the length of the roll along the axial direction and the size of each image, the required number of cameras 6 is determined to ensure that the cameras 6 can detect the entire length of the upper work roll 1 and the lower work roll 2 . For example, if the transverse dimension of an image is D, and the axial length of the upper work roll 1/lower work roll 2 is L, a total of M=L/D cameras 6 are required.
本发明工作辊辊面在线检测方法过程具体如下：检测对象为上工作辊1、下工作辊2。当一块带钢轧制完毕，下块带钢尚未到来时，则是检测窗口期。当一卷钢轧制完毕后，由二级计算机***(L2)发送轧制结束信号给PLC控制器14，PLC控制器14控制活门装置5打开摄像窗口护板4，同时触发摄像机中的照相机6，照相机6对上工作辊1/下工作辊2的辊面进行全范围连续拍摄，并将辊面质量图像传输至图像采集单元15，图像采集单元15将采集到的辊面质量图像再送往图像处理单元16，图像处理单元16对图像进行处理和分析后，把图像缺陷信息送往存储和显示单元17，对缺陷图像进行存储，并将缺陷在界面终端显示出来。The process of the online detection method for the roll surface of the work roll of the present invention is as follows: the detection objects are the upper work roll 1 and the lower work roll 2 . When the rolling of a strip is completed and the next strip has not yet arrived, it is the detection window period. When the rolling of a coil of steel is completed, the secondary computer system (L2) sends a rolling end signal to the PLC controller 14. The PLC controller 14 controls the shutter device 5 to open the camera window guard 4, and simultaneously triggers the camera 6 in the camera. , the camera 6 continuously shoots the roll surface of the upper work roll 1/lower work roll 2 in a full range, and transmits the roll surface quality image to the image acquisition unit 15, and the image acquisition unit 15 sends the collected roll surface quality image to the The image processing unit 16, after the image processing unit 16 processes and analyzes the image, sends the image defect information to the storage and display unit 17, stores the defect image, and displays the defect on the interface terminal.
综上所述，本发明针对热轧辊面检测，考虑到现场环境恶劣，安装空间比较小，采用具备足够刚度、强度、抗震性、温度调控功能的轧辊表面图像拍摄装置100。光源支架、照相机6等相关部件均被轧辊表面图像拍摄装置100中的防护箱体3密封冷却，只有当需检测工作辊的辊面时，让光源支架投射光照并让照相机6进行拍摄。因此，轧辊表面图像拍摄装置100能可靠、安全和正常地工作，具备防护功能，防止水、油、汽污染摄像机。To sum up, the present invention adopts the roll surface image capturing device 100 with sufficient rigidity, strength, shock resistance, and temperature control functions, considering the harsh on-site environment and the relatively small installation space for hot roll surface detection. The light source bracket, camera 6 and other related components are sealed and cooled by the protective box 3 in the roll surface image capturing device 100. Only when the roll surface of the work roll needs to be detected, let the light source bracket project light and let the camera 6 take pictures. Therefore, the roll surface image capturing device 100 can work reliably, safely and normally, and has a protective function to prevent water, oil and vapor from contaminating the camera.
使用本发明可以实现在空间狭小的热连轧机机架内，对工作轧辊的辊面在线质量检测设备进行有效防护，保护相机和光源等光学***免于受到高温、水汽和乳化液的侵害。通过使用“眼皮”式摄像窗口护板4，并结合轧制信息利用PLC控制器14进行控制，做到及时打开和关闭，有效保护检测设备不受到高压水的困扰，并能准确检测出辊面缺陷。The invention can effectively protect the online quality inspection equipment of the roll surface of the work roll in the narrow space of the hot tandem mill stand, and protect the optical systems such as cameras and light sources from being infringed by high temperature, water vapor and emulsion. By using the "eyelid" type camera window guard 4, combined with the rolling information, it is controlled by the PLC controller 14, so that it can be opened and closed in time, effectively protecting the testing equipment from the trouble of high-pressure water, and can accurately detect the roll surface defect.
本技术领域中的普通技术人员应当认识到，以上的实施例仅是用来说明本发明， 而并非用作为对本发明的限定，只要在本发明的实质精神范围内，对以上所述实施例的变化、变型都将落在本发明的权利要求书范围内。Those skilled in the art should realize that the above embodiments are only used to illustrate the present invention, but not to limit the present invention. Changes and modifications will fall within the scope of the claims of the present invention.

Claims (18)

  1. 一种轧辊表面图像拍摄装置，其特征在于：A roll surface image photographing device, characterized in that:
    所述轧辊表面图像拍摄装置用以获取工作轧辊的辊面质量图像，The roll surface image capturing device is used to obtain the roll surface quality image of the work roll,
    且为密闭结构，所述轧辊表面图像拍摄装置内设置有冷循环装置。And it is a closed structure, and a cold circulation device is arranged in the roll surface image capturing device.
  2. 根据权利要求1所述的轧辊表面图像拍摄装置，其特征在于：所述轧辊表面图像拍摄装置进一步包括防护箱体、摄摄像机机、摄像窗口护板和活门装置；The roll surface image photographing device according to claim 1, characterized in that: the roll surface image photographing device further comprises a protective box, a camera, a camera window guard and a shutter device;
    所述摄像机安设于所述防护箱体内，所述防护箱体上开设有与工作轧辊相对的拍摄视窗；The camera is installed in the protective box body, and a shooting window opposite to the work roll is opened on the protective box body;
    所述摄像窗口护板覆盖于所述防护箱体与工作轧辊相对的所述拍摄视窗，并呈开启/关闭状态；The camera window guard plate covers the camera window opposite the protective box and the work roll, and is in an open/closed state;
    所述活门装置用以控制所述摄像窗口护板的启闭。The shutter device is used to control the opening and closing of the camera window guard.
  3. 根据权利要求2所述的轧辊表面图像拍摄装置，其特征在于：所述防护箱体为密闭结构，The roll surface image photographing device according to claim 2, wherein the protective box is a closed structure,
    所述摄像机设计为一可从所述防护箱体内整体抽拉的结构；The camera is designed as a structure that can be pulled out from the protective box as a whole;
    所述冷循环装置用以对所述防护箱体、所述摄像机进行冷却。The cold circulation device is used for cooling the protective box and the camera.
  4. 根据权利要求3所述的轧辊表面图像拍摄装置，其特征在于：所述防护箱体采用不锈钢材质制成，其装配接合面之间均配有密封圈。The roll surface image photographing device according to claim 3, wherein the protective box is made of stainless steel, and sealing rings are provided between the assembling and joint surfaces.
  5. 根据权利要求4所述的轧辊表面图像拍摄装置，其特征在于：所述密封圈的材质采用丁晴橡胶。The image capturing device of the surface of the roll according to claim 4, wherein the material of the sealing ring is NBR.
  6. 根据权利要求1所述的轧辊表面图像拍摄装置，其特征在于：所述冷循环装置采用水冷却和/或压缩空气冷却；The roll surface image capturing device according to claim 1, characterized in that: the cold circulation device adopts water cooling and/or compressed air cooling;
  7. 根据权利要求2所述的轧辊表面图像拍摄装置，其特征在于：所述拍摄视窗 包括相机视窗和光源视窗。The roll surface image photographing device according to claim 2, wherein the photographing window includes a camera window and a light source window.
  8. 根据权利要求2所述的轧辊表面图像拍摄装置，其特征在于：所述活门装置由PLC控制器控制，所述活门装置驱动所述摄像窗口护板的打开或关闭所述拍摄视窗。The roll surface image capturing device according to claim 2, wherein the shutter device is controlled by a PLC controller, and the shutter device drives the camera window guard to open or close the camera window.
  9. 根据权利要求8所述的轧辊表面图像拍摄装置，其特征在于：所述活门装置通过齿轮齿条摆动气缸驱动所述窗口护板的开起或闭合，所述护板的抬起角度为75°。The roll surface image photographing device according to claim 8, wherein the shutter device drives the opening or closing of the window guard plate through a rack and pinion swinging cylinder, and the lifting angle of the guard plate is 75° .
  10. 一种具有升降功能的轧辊表面图像拍摄***，其特征在于：包括如权利要求1-9任一项所述的轧辊表面图像拍摄装置，以及设于所述轧辊表面图像拍摄装置下方的伺服升降装置。A roll surface image capturing system with lifting function, characterized in that it comprises the roll surface image capturing device according to any one of claims 1-9, and a servo lifting device arranged below the roll surface image capturing device .
  11. 根据权利要求10所述的具有升降功能的轧辊表面图像拍摄***，其特征在于：所述伺服升降装置包括导轨和伺服电动缸；所述伺服电动缸用以驱动所述防护箱体沿所述导轨的升降运动。The roll surface image capturing system with lifting function according to claim 10, wherein: the servo lifting device comprises a guide rail and a servo electric cylinder; the servo electric cylinder is used to drive the protective box along the guide rail lifting movement.
  12. 根据权利要求11所述的具有升降功能的轧辊表面图像拍摄***，其特征在于：所述导轨为不锈钢圆柱导轨。The roll surface image capturing system with lifting function according to claim 11, wherein the guide rail is a stainless steel cylindrical guide rail.
  13. 一种工作辊辊面在线检测***，其特征在于：该工作辊辊面在线检测***基于权利要求10所述的具有升降功能的轧辊表面图像拍摄***，包括生产物流计算机、以及用以接收所述生产物流计算机发出信息的多功能卡；An online detection system for the roll surface of a work roll, characterized in that: the online detection system for the roll surface of the work roll is based on the roll surface image capturing system with lifting function according to claim 10, and includes a production logistics computer, and a computer for receiving the said roll surface. Production of multi-function cards for information sent by logistics computers;
    辊面检测***上位机，用以接收所述多功能卡的轧制信息，并控制所述摄取装置获取工作辊的辊面图像；The upper computer of the roll surface detection system is used to receive the rolling information of the multi-function card and control the capture device to obtain the roll surface image of the work roll;
    PLC控制器，用以接收所述多功能卡的轧制信息，并控制所述伺服升降装置的升降运动，以及控制所述机械活门装置驱动所述护板的启闭运动。The PLC controller is used to receive the rolling information of the multi-function card, control the lifting movement of the servo lifting device, and control the mechanical shutter device to drive the opening and closing movement of the guard plate.
  14. 根据权利要求13所述的工作辊辊面在线检测***，其特征在于：所述轧制信息包括轧制结束信号、待检测工作辊的辊径信息。The on-line detection system for the roll surface of the work rolls according to claim 13, wherein the rolling information includes a rolling end signal and the roll diameter information of the work rolls to be detected.
  15. 根据权利要求14所述的工作辊辊面在线检测***，其特征在于：所述辊面检测***上位机根据所述轧制结束信号，控制所述摄取装置；The on-line detection system for the roll surface of the work roll according to claim 14, wherein the upper computer of the roll surface detection system controls the ingesting device according to the rolling end signal;
    所述PLC控制器根据所述轧制结束信号，控制所述机械活门装置；根据所述待检测工作辊的辊径信息，控制所述伺服升降装置。The PLC controller controls the mechanical shutter device according to the rolling end signal; and controls the servo lifting device according to the roll diameter information of the work roll to be detected.
  16. 一种工作辊辊面在线检测方法，其特征在于：An on-line detection method for the roll surface of a work roll, characterized in that:
    当钢卷轧制完成一卷，高压水停止，此时由权利要求13-15任一项所述的工作辊辊面在线检测***中的所述生产物流计算机将所述轧制结束信号和所述待检测工作辊的辊径信息发送给所述多功能卡；When one coil of steel coil is rolled, the high-pressure water stops. At this time, the production logistics computer in the on-line detection system of the work roll surface according to any one of claims 13-15 compares the rolling end signal with all The roll diameter information of the work roll to be detected is sent to the multi-function card;
    所述PLC控制器根据所述待检测工作辊的辊径信息，控制所述伺服升降装置将所述摄取装置移动至拍摄位置；The PLC controller controls the servo lifting device to move the capturing device to the shooting position according to the roll diameter information of the work roll to be detected;
    所述PLC控制器根据所述轧制结束信号，控制所述机械活门装置驱动所述护板打开；The PLC controller controls the mechanical shutter device to drive the guard plate to open according to the rolling end signal;
    所述辊面检测***上位机根据所述轧制结束信号，控制所述摄取装置拍摄获取工作辊的辊面图像；The upper computer of the roll surface detection system controls the capture device to capture the roll surface image of the work roll according to the rolling end signal;
    所述工作辊的辊面图像获取结束后，由所述辊面检测***上位机停止所述摄取装置的拍摄，所述PLC控制器控制所述机械活门装置关闭所述护板，检测工作停止。After the acquisition of the roll surface image of the work roll is completed, the upper computer of the roll surface detection system stops the shooting of the capture device, and the PLC controller controls the mechanical shutter device to close the guard plate, and the detection work stops.
  17. 根据权利要求16所述的工作辊辊面在线检测方法，其特征在于：所述摄取装置的拍摄周期t＝20(2πr/v)，t＜T；The on-line detection method of the roll surface of the work roll according to claim 16, characterized in that: the photographing period of the capturing device is t=20 (2πr/v), t<T;
    上式中，20表示每次拍摄所述工作辊20周的图像，r表示所述工作辊的半径，v表示所述工作辊的转速，T表示两卷所述钢卷之间的间隔时间。In the above formula, 20 represents the image of the work roll taken 20 times each time, r represents the radius of the work roll, v represents the rotational speed of the work roll, and T represents the interval between two rolls of the steel coil.
  18. 根据权利要求16所述的工作辊辊面在线检测方法，其特征在于：所述摄取装置移动至拍摄位置，具体为所述摄取装置的拍摄点位于所述工作辊的中心线位置。The on-line detection method of the roll surface of the work roll according to claim 16, characterized in that: the pickup device is moved to a photographing position, specifically, the photographing point of the pickup device is located at the centerline position of the work roll.
PCT/CN2022/078794 2021-03-15 2022-03-02 Roller surface image capturing apparatus and system, and online roller surface testing system and method WO2022193950A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202110273818.0A CN115069788B (en) 2021-03-15 2021-03-15 Roller surface image shooting device and system, roller surface online detection system and method
CN202110273818.0 2021-03-15

Publications (1)

Publication Number Publication Date
WO2022193950A1 true WO2022193950A1 (en) 2022-09-22

Family

ID=83241442

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2022/078794 WO2022193950A1 (en) 2021-03-15 2022-03-02 Roller surface image capturing apparatus and system, and online roller surface testing system and method

Country Status (2)

Country Link
CN (1) CN115069788B (en)
WO (1) WO2022193950A1 (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009068983A (en) * 2007-09-13 2009-04-02 Inoue Mfg Inc Roll surface inspection device of roll mill
ES2320977T3 (en) * 2001-07-17 2009-06-01 Centre De Recherches Metallurgiques - Centrum Voor De Research In De Metallurgie PROCEDURE FOR INSPECTION OF THE SURFACE OF A ROLLER CYLINDER.
CN104923576A (en) * 2014-03-17 2015-09-23 宝山钢铁股份有限公司 Hot rolling production line finish rolling working roll surface automatic detection device
CN107883881A (en) * 2017-11-22 2018-04-06 殷周平 A kind of image collecting device and method
CN108796681A (en) * 2018-07-20 2018-11-13 青岛宏大纺织机械有限责任公司 Fibre defect on-line monitoring system on a kind of carding machine
CN110653271A (en) * 2018-06-29 2020-01-07 宝山钢铁股份有限公司 Automatic grading device and grading method for roll surface quality of hot-rolled strip steel coiling pinch roll
CN112122366A (en) * 2019-06-25 2020-12-25 宝山钢铁股份有限公司 Hot roll surface online detection system and detection method thereof

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1137012C (en) * 2000-12-14 2004-02-04 中国科学院力学研究所 System for strengthening hot-roling roll by high-frequency pulse laser and strengthening method thereof
JP4634914B2 (en) * 2005-05-24 2011-02-16 新日本製鐵株式会社 Roll roll surface imaging device and control method thereof
CN201133996Y (en) * 2007-12-25 2008-10-15 华晶科技股份有限公司 Double sliding door structure
CN109001956A (en) * 2017-06-06 2018-12-14 宝山钢铁股份有限公司 Full view endoscopic high-temperature camera

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2320977T3 (en) * 2001-07-17 2009-06-01 Centre De Recherches Metallurgiques - Centrum Voor De Research In De Metallurgie PROCEDURE FOR INSPECTION OF THE SURFACE OF A ROLLER CYLINDER.
JP2009068983A (en) * 2007-09-13 2009-04-02 Inoue Mfg Inc Roll surface inspection device of roll mill
CN104923576A (en) * 2014-03-17 2015-09-23 宝山钢铁股份有限公司 Hot rolling production line finish rolling working roll surface automatic detection device
CN107883881A (en) * 2017-11-22 2018-04-06 殷周平 A kind of image collecting device and method
CN110653271A (en) * 2018-06-29 2020-01-07 宝山钢铁股份有限公司 Automatic grading device and grading method for roll surface quality of hot-rolled strip steel coiling pinch roll
CN108796681A (en) * 2018-07-20 2018-11-13 青岛宏大纺织机械有限责任公司 Fibre defect on-line monitoring system on a kind of carding machine
CN112122366A (en) * 2019-06-25 2020-12-25 宝山钢铁股份有限公司 Hot roll surface online detection system and detection method thereof

Also Published As

Publication number Publication date
CN115069788B (en) 2023-08-11
CN115069788A (en) 2022-09-20

Similar Documents

Publication Publication Date Title
CN109913602B (en) Blast furnace tuyere equipment and system and method for inspecting erosion state of lining of peripheral furnace body
CN110669911B (en) Operating method of telescopic labyrinth isolation nitrogen interlocking control system of hot galvanizing vertical annealing furnace
WO2022193950A1 (en) Roller surface image capturing apparatus and system, and online roller surface testing system and method
CN105451002B (en) High temperature kiln high definition industrial television monitoring system and its monitoring method
CN112122366A (en) Hot roll surface online detection system and detection method thereof
CN113983965A (en) Flat cable quality detection device and detection method
CN102183578A (en) Wheel set fluorescent magnetic powder flaw detector
CN209923373U (en) Blast furnace tuyere equipment and peripheral furnace body lining erosion state inspection system thereof
GB2468713A (en) Edge Flatness Monitoring
CN117214190A (en) Film double-sided detection equipment and detection method based on coating machine
CN115112664A (en) Accurate and efficient control method for surface defects of wire rod based on hot eye equipment
JPS62179647A (en) Inner wall defect inspector for high temperature container
EP3650129A1 (en) System and method for automatically sorting ceramic balls
CN102954966A (en) Hot continuous cast billet surface quality detection system
CN110614282A (en) Automatic detection device for surface cleaning quality defects of hot-rolled plate blanks
JPH09113675A (en) Incore structure inspection device
KR102204434B1 (en) Apparatus and method for inspecting surface defects
TW202310553A (en) Motor controlling system for application in apparatus having roll-to-roll mechanism
CN115109882A (en) Water-cooling protective device and in-furnace high-temperature camera device
JP2001183302A (en) Apparatus for inspecting surface of steel strip
CN109001956A (en) Full view endoscopic high-temperature camera
CN110006916B (en) COF detection equipment
CN105044048A (en) Small roller surface flaw detection device and method
CN216694988U (en) Positioning device and system thereof
JPH11160243A (en) Apparatus for monitoring roll surface

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22770305

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 22770305

Country of ref document: EP

Kind code of ref document: A1