KR100325339B1 - Method and apparatus for obtaining surface image of rolling rolls during rolling - Google Patents

Method and apparatus for obtaining surface image of rolling rolls during rolling Download PDF

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KR100325339B1
KR100325339B1 KR1019970070099A KR19970070099A KR100325339B1 KR 100325339 B1 KR100325339 B1 KR 100325339B1 KR 1019970070099 A KR1019970070099 A KR 1019970070099A KR 19970070099 A KR19970070099 A KR 19970070099A KR 100325339 B1 KR100325339 B1 KR 100325339B1
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South Korea
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optical fiber
light
computer
receiving
rolling
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KR1019970070099A
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Korean (ko)
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KR19990050907A (en
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이종학
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포항종합제철 주식회사
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    • 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
    • B21B28/00—Maintaining rolls or rolling equipment in effective condition
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/14—Measuring arrangements characterised by the use of optical techniques for measuring distance or clearance between spaced objects or spaced apertures
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
    • G01N21/952—Inspecting the exterior surface of cylindrical bodies or wires
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B15/00—Special procedures for taking photographs; Apparatus therefor
    • G03B15/02—Illuminating scene
    • G03B15/03—Combinations of cameras with lighting apparatus; Flash units

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Biochemistry (AREA)
  • Analytical Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)

Abstract

PURPOSE: A method and an apparatus for obtaining the surface image of rolling rolls during rolling are provided to easily obtain surface state of the rolls even in a small space by miniaturizing volume of a facility that is installed adjacently to the rolls to emit and receive light using optical fiber. CONSTITUTION: The method and apparatus for obtaining the surface image of rolling rolls during rolling comprises a head part(10) comprising a light emitting optical fiber(11) that is connected to output of the light source(30), a light receiving optical fiber(12) that is connected to input of a camera part(32), and a distance sensor(13) that is connected to input of a computer(40); and a processing part comprising a motor for moving position of the head part(10) by receiving input of the computer(40), a light source(30) that is controlled by synchronizing signals of a synchronization part(31) receiving input of the computer(40), a camera part(32) for receiving output of the light receiving optical fiber(12) and the synchronizing signals of the synchronization part(31), a capture part(33) transmitting the received data output to the computer(40) by receiving data output of the camera part(32); a display part(41) for receiving output of the computer(40); and a storage part(42).

Description

압연 중인 압연 롤의 표면영상 취득방법 및 장치Method and device for acquiring surface image of rolling rolls during rolling

본 발명은 압연 작업 중에도 협소한 장소에서 롤의 표면 상태의 변화를 관찰할 수 있는 방법 및 장치에 관한 것이다.The present invention relates to a method and an apparatus capable of observing a change in the surface state of a roll at a narrow place even during a rolling operation.

일반적으로 제철 산업 및 기타 압연 롤을 사용하는 분야에서 압연 롤은 매우 고가의 설비이며, 제품의 상태에 매우 큰 영향을 미치므로, 롤의 압연 소재의 재질의 특성, 사용 상태, 압연 양, 사용 기간에 따른 롤 표면의 노화 정도, 상태의 변화를 관측하여야 하고, 롤 압연 단위의 편성 및 롤 교체 시기를 정확히 알기 위해서는 롤의 표면 상태를 연속적으로 관찰할 필요가 있는데, 압연시 롤의 냉각을 위하여 분사되는 냉각수는 롤의 전면에 분사되며, 상기 냉각수는 기계의 구동에 필요한 윤활유와 섞여 반투명의 색을 띠고 있고, 이때 냉각수의 분사 압력은 20 내지 25 kg/cm2일 뿐만 아니라 압연 중에 롤의 표면은 60 내지 80 ℃정도의 고온이며, 압연 상태에서 롤의 진동이 상당히 많이 발생되므로 작업 중에 롤의 표면 상태를 정확히 파악하기가 어렵다.In general, in the steel industry and other fields using rolled rolls, rolled rolls are very expensive equipment and have a great effect on the state of the product, so the characteristics of the material of the rolled material of the roll, the state of use, the amount of rolling, the period of use The degree of aging of the roll surface and the change of state should be observed. In order to know the organization of the roll rolling unit and the timing of the roll replacement accurately, it is necessary to continuously observe the surface state of the roll. Coolant is sprayed on the front of the roll, the coolant is mixed with the lubricating oil required to drive the machine has a translucent color, wherein the spray pressure of the coolant is 20 to 25 kg / cm 2 as well as the surface of the roll during rolling It is a high temperature of about 60 to 80 ℃, it is difficult to accurately determine the surface state of the roll during operation because the vibration of the roll is generated a lot in the rolled state.

종래에 있어서는 광학계가 접근하기 힘든 열악한 환경 하에서 압연 중인 롤의 표면을 관찰할 수 있는 방법으로서 CCD(Charge Coupled Device) 카메라를 사용하여 수관과 유리와 같은 투명한 재질을 방수벽으로 사용하고, 일정한 압력으로 공급되는 냉각수를 롤의 표면으로 유출시킴으로써 롤의 표면과 카메라 간에 수관을 형성시켜서 이를 통하여 보조광으로 사용하는 빛을 조사한 후 표면의 상태를 영상으로 취득하는 방법을 사용하였다.Conventionally, as a method of observing the surface of a roll being rolled in a harsh environment in which an optical system is difficult to access, a transparent material such as a water pipe and glass is used as a waterproof wall using a CCD (Charge Coupled Device) camera, and at a constant pressure. By flowing the supplied cooling water to the surface of the roll, a water pipe was formed between the surface of the roll and the camera, through which the light used as auxiliary light was irradiated, and then the state of the surface was acquired as an image.

그런데, 상기 종래의 방법에 있어서는 열연 압연 롤이 설치되어 있는 스탠드(Stand)와 같은 환경은 냉각수 분사를 위한 노즐이 롤의 폭 방향으로 설치되어 있으며, 작업 롤(Work Roll)의 상부에는 백업 롤(Backup Roll)이 설치되어 있어서 기계적으로 매우 복잡하게 되어 있으므로, 롤의 표면을 관찰하기 위하여 광원, 거리계, 영상취득부 등을 롤의 부근에 직접 설치하여 관찰하는 것이 거의 불가능하다는 문제점이 있었다.By the way, in the conventional method, such as a stand (Stand) in which a hot rolled rolling roll is installed, a nozzle for spraying cooling water is installed in the width direction of the roll, and a backup roll (top) on the work roll (Work Roll) Since a backup roll is provided, it is mechanically very complicated, and there is a problem that it is almost impossible to directly install and observe a light source, a rangefinder, an image acquisition part, etc. in the vicinity of the roll in order to observe the surface of the roll.

본 발명은 상기 문제점을 해소하기 위하여 안출된 것으로서, 광섬유를 사용하여 발광 및 수광하여 롤 부근에 설치되는 설비의 부피를 소형화함으로써 협소한 장소에서도 용이하게 롤의 표면 상태를 취득할 수 있는 압연 중인 압연 롤의 표면영상 취득방법 및 장치를 제공하고자 하는 것이다.SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and is rolling in rolling, which makes it possible to easily acquire the surface state of a roll even in a narrow place by miniaturizing the volume of equipment installed near the roll by emitting and receiving light using an optical fiber. It is to provide a method and apparatus for acquiring a surface image of a roll.

도 1은 본 발명의 영상 취득장치의 구성도1 is a block diagram of an image acquisition device of the present invention

도 2는 본 발명의 헤드부의 측면 단면도Figure 2 is a side cross-sectional view of the head of the present invention

도 3은 본 발명의 헤드부의 A-A′단면도3 is a cross-sectional view taken along the line A-A 'of the head of the present invention;

도 4는 본 발명의 헤드부의 평면 단면도4 is a cross-sectional plan view of the head of the present invention.

<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>

10 : 헤드(Head)부 11 : 발광 광섬유(Optical Fiber)10: Head portion 11: Optical Fiber

12 : 수광 광섬유 13 : 거리 센서(Sensor)12: light receiving fiber 13: distance sensor

20 : 모터(Motor)20: Motor

30 : 광원(Light Source) 31 : 동기(Sync)부30: Light Source 31: Sync Unit

32 : 카메라(Camera)부 33 : 캡쳐(Capture)부32: Camera unit 33: Capture unit

40 : 컴퓨터(Computer) 41 : 디스플레이(Display)부40: Computer 41: Display

42 : 저장(Storage)부42: storage

50 : 워터재킷(Water Jacket) 51 : 냉각수(Cooling Water)50: Water Jacket 51: Cooling Water

60 : 방수관(Waterproof Tube)60: Waterproof Tube

99 : 롤(Roll)99: Roll

상기 과제를 달성하기 위하여 본 발명은 기본적으로 빛을 전달할 수 있는 광섬유를 이용하여 광원으로부터 롤의 표면에 빛을 조사하고, 롤의 표면으로부터 반사되는 빛을 광섬유와 집광 렌즈를 통하여 수광 소자인 카메라에 전달함으로써 롤 부근의 장치를 소형화함을 원리로 한다.In order to achieve the above object, the present invention basically irradiates light to the surface of the roll from the light source using an optical fiber capable of transmitting light, and the light reflected from the surface of the roll to the camera as a light receiving element through the optical fiber and the condenser lens The principle is to miniaturize the apparatus near the roll by transmitting.

상기 본 발명의 장치는 도 1의 구성도에 도시된 바와 같이 헤드부(10)와 처리부(50)로 구성되어 있다.The apparatus of the present invention comprises a head portion 10 and a processing portion 50 as shown in the configuration diagram of FIG.

상기 헤드부(10)는 도 2의 측단면도, 도 3의 정단면도, 도 4의 평단면도에도시된 바와 같이 발광 광섬유(11), 수광 광섬유(12) 및 거리 센서(13)로 구성되는데, 상기 발광 광섬유(11)는 광원(30)의 출력에 연결되고, 상기 수광 광섬유(12)는 카메라부(32)의 입력에 연결되며, 상기 거리 센서(13)는 컴퓨터(40)의 입력에 연결되도록 구성되어 있으며, 상기 발광 광섬유(11) 및 수광 광섬유(12)는 방수관(60)에 의해 에워싸인 채 냉각수(51)가 공급되는 워터재킷(50)의 내부에 설치된다. 여기서 상기 발광 광섬유(11), 수광 광섬유(12) 또는 거리 센서(13)에는 효율적인 빛의 집중적 전달을 위하여 집광렌즈를 설치할 수 있다.The head portion 10 is composed of a light emitting optical fiber 11, a light receiving optical fiber 12 and a distance sensor 13, as shown in the side cross-sectional view of FIG. 2, the front cross-sectional view of FIG. The light emitting optical fiber 11 is connected to the output of the light source 30, the light receiving optical fiber 12 is connected to the input of the camera unit 32, the distance sensor 13 is connected to the input of the computer 40 The light emitting optical fiber 11 and the light receiving optical fiber 12 are installed inside the water jacket 50 to which the coolant 51 is supplied while being surrounded by the waterproof tube 60. In this case, the light converging optical fiber 11, the light receiving optical fiber 12, or the distance sensor 13 may be provided with a condenser lens for efficient transmission of light.

또한 상기 처리부는 컴퓨터(40)의 입력을 받아 상기 헤드부(10)의 위치를 이동시키는 모터(20), 상기 컴퓨터(40)의 입력을 받는 동기부(31)의 동기신호에 의해 제어되는 광원(30), 상기 수광 광섬유(12)의 출력을 받고 상기 동기부(31)의 동기신호를 받는 카메라부(32), 상기 카메라부(32)의 데이터 출력을 받아 컴퓨터(40)에 전달하는 캡쳐부(33), 상기 컴퓨터(40)의 출력을 받는 디스플레이부(41) 및 저장부(42)로 구성된다.In addition, the processor is a light source controlled by the synchronization signal of the motor 20 for receiving the input of the computer 40 to move the position of the head unit 10, the synchronization unit 31 receives the input of the computer 40 30, a camera unit 32 receiving the output of the light receiving optical fiber 12 and a synchronization signal of the synchronization unit 31, a capture which receives the data output of the camera unit 32 and transmits the data to the computer 40. The unit 33 includes a display unit 41 and a storage unit 42 that receive the output of the computer 40.

한편, 본 발명의 표면영상 취득방법은 컴퓨터(40)의 모터제어 신호에 의해 모터(20)를 구동시켜 헤드부(10)의 위치를 조정한 다음, 컴퓨터(40)의 영상제어 신호에 의해 동기부(31)를 동작시키고, 상기 동기부(31)에서 발생되는 동기신호에 의해 광원(30) 및 카메라부(32)의 동기가 맞춰진 상태에서 광원(30)에 의해 발광 광섬유(11)를 통해 롤(99)의 표면에 빛을 조광한 후, 상기 조광에 의해 반사되는 롤(99)의 표면 영상을 수광 광섬유(12)를 통해 카메라부(32)에서 입력받아 캡쳐부(33)에서 영상으로 취득하여 컴퓨터(40)를 통해 저장부(42)에 저장하고 디스플레이부(41)에 나타내는 것이다.On the other hand, the surface image acquisition method of the present invention drives the motor 20 by the motor control signal of the computer 40 to adjust the position of the head portion 10, and then by the image control signal of the computer 40 The base 31 is operated and the light source 30 is synchronized with the light source 30 through the light emitting optical fiber 11 in a state in which the light source 30 and the camera unit 32 are synchronized by the synchronization signal generated by the synchronizer 31. After dimming the light on the surface of the roll 99, the surface image of the roll 99 reflected by the dimming is received from the camera unit 32 through the light receiving optical fiber 12 to capture the image from the capture unit 33 The data is obtained and stored in the storage unit 42 through the computer 40 and displayed on the display unit 41.

이하 상기와 같은 구성을 가지는 본 발명의 동작을 설명한다.Hereinafter, the operation of the present invention having the configuration as described above.

먼저 거리 센서(13)에 의해 롤(99)과 헤드부(10) 선단부 사이의 거리를 측정한다. 이때 롤(99)은 압연 중에 심하게 진동하면서 회전하고 있고, 롤(99)의 냉각을 위하여 냉각수가 롤(99)의 전면에 25 kg/cm2의 수압으로 살포되고 있으므로, 헤드부(10) 선단부를 기준으로 좌우 양쪽에서 거리를 측정하여 평균값으로서 거리를 산출한다. 상기 거리 신호는 컴퓨터(40)로 전달되어 컴퓨터(40)가 모터제어 신호를 발생시키고, 상기 신호에 의해 모터(20)가 롤(99)과의 간격을 유지한다.First, the distance between the roll 99 and the tip of the head 10 is measured by the distance sensor 13. At this time, the roll 99 rotates violently during rolling, and the cooling water is sprayed on the front surface of the roll 99 at 25 kg / cm 2 for cooling the roll 99. The distance is measured from both the left and right sides, and the distance is calculated as an average value. The distance signal is transmitted to the computer 40 so that the computer 40 generates a motor control signal, whereby the motor 20 maintains a distance from the roll 99.

그 후 컴퓨터(40)는 작업자의 지시에 따라 일정 주기간격 또는 비주기적으로 동기부(31)를 가동시킴으로써 광원(30)과 카메라부(32)의 동기를 일치시킨 후, 광원(30)을 점등시켜서 발광 광섬유(11)를 통해 롤(99)의 표면에 빛을 노출한다. 이때 압연 작업 중의 롤은 초당 4 m 이상의 속도로 회전하고 있고, 취득하고자 하는 롤 표면의 영상 면적은 10 × 10 mm2이므로 이렇게 작은 면적을 484 × 680 등의 화소로 구성된 면적형 CCD(Charge Coupled Device) 소자 등의 카메라부(32)로 정지 영상신호를 얻기 위해서는 10 μs 이하로 발광시간을 가지는 순간 광원(30)을 사용하여야 하며, 이는 상기 동기부(31)에 의하여 카메라부(32)의 영상 취득순간과 연동된다.Thereafter, the computer 40 synchronizes the synchronization between the light source 30 and the camera unit 32 by operating the synchronization unit 31 at regular intervals or aperiodically according to the operator's instructions, and then turns on the light source 30. By exposing the light to the surface of the roll 99 through the light emitting optical fiber (11). At this time, the roll during the rolling operation is rotating at a speed of 4 m or more per second, and the image area of the roll surface to be acquired is 10 × 10 mm 2 , so the area-type CCD (Charge Coupled Device) consisting of such a small area as 484 × 680 pixels In order to obtain a still image signal with a camera unit 32 such as an element, an instant light source 30 having a light emission time of 10 μs or less should be used, which is obtained by the synchronization unit 31. It is linked with acquisition moment.

상기 발광 광섬유(11)를 통하여 발산된 빛은 헤드부(10)의 냉각을 위하여 워터재킷(50)에 연속적으로 공급되는 냉각수(51)에 의해 롤(99)의 표면과 방수관(60)선단 사이에 형성된 물기둥 또는 물관을 통과하여 롤(99)의 표면에 도달하며, 상기 롤(99)의 표면으로부터 반사된 빛은 역시 순간적으로 수광 광섬유(12)를 통하여 카메라부(32)에 전달된다.The light emitted through the light emitting optical fiber 11 is the front of the roll 99 and the waterproof tube 60 by the coolant 51 continuously supplied to the water jacket 50 for cooling the head 10. Passing through the water column or water pipe formed therebetween to reach the surface of the roll 99, the light reflected from the surface of the roll 99 is also instantaneously transmitted to the camera unit 32 through the light receiving optical fiber 12.

상기 카메라부(32)에서는 빛 신호를 전기적 신호로 변환시켜 캡쳐부(33)로 전달하고, 상기 캡쳐부(33)에서는 상기 전기적 신호를 영상 프레임으로 구성시킨다. 상기 영상 프레임 데이터는 컴퓨터(40)를 통해 디스플레이부(41)에 의해 표시되어 작업자에게 정보로서 직접 실시간으로 전달되거나 저장부(42)에 전달되어 데이터베이스 형태로 저장된다.The camera unit 32 converts the light signal into an electrical signal and transmits the light signal to the capture unit 33, and the capture unit 33 configures the electrical signal into an image frame. The image frame data is displayed by the display unit 41 through the computer 40 to be directly transmitted to the operator as information in real time or to the storage unit 42 and stored in a database form.

한편, 상기 발광 광섬유(11) 및 수광 광섬유(12)는 어느 정도 길이의 연장이 가능하므로 상기 광원(30), 카메라부(32), 컴퓨터(40) 등의 고장 시에는 협소한 롤(99) 부근의 장소에서 직접 수리할 필요가 없이 압연 스탠드의 외부에서 유지 보수를 할 수 있다.On the other hand, since the light emitting optical fiber 11 and the light receiving optical fiber 12 can be extended to a certain length, the narrow roll 99 when the light source 30, the camera unit 32, the computer 40, etc. fail. Maintenance can be performed outside of the rolling stand without the need for direct repairs at nearby locations.

따라서 본 발명에 의하면 종래보다 1/4 이하로 장치 크기가 축소되어 협소한 스탠드 부근의 장소에 용이하게 설치하여 압연 중인 롤 표면의 영상을 취득할 수 있고, 광원이나 카메라, 컴퓨터 등의 설비 고장 시에도 유지 보수를 압연 스탠드의 외부에서 할 수 있어서, 고열에 의한 설비의 고장 또는 오동작의 위험이 감소되고, 유지 보수에 대한 작업자의 안전사고 가능성이 감소되며, 유지 보수가 용이하므로 설비 가동률이 제고되어 생산성이 향상되는 등 매우 획기적인 효과가 있다.Therefore, according to the present invention, the size of the device is reduced to 1/4 or less than before, so that the device can be easily installed in a place near a narrow stand to acquire an image of the roll surface being rolled, and in case of failure of a light source, a camera, a computer, etc. Edo maintenance can be performed outside the rolling stand, reducing the risk of malfunction or malfunction of the equipment due to high heat, reducing the possibility of safety accidents for maintenance, and facilitating maintenance. There is a very significant effect such as productivity is improved.

Claims (3)

압연 작업 중에도 협소한 장소에서 롤의 표면 상태의 변화를 관찰할 수 있는 장치에 있어서, 헤드부(10)와 처리부(50)로 구성하되, 상기 헤드부(10)는 발광 광섬유(11), 수광 광섬유(12) 및 거리 센서(13)로 구성되며, 상기 발광 광섬유(11)는 광원(30)의 출력에 연결되고, 상기 수광 광섬유(12)는 카메라부(32)의 입력에 연결되며, 상기 거리 센서(13)는 컴퓨터(40)의 입력에 연결되고, 상기 처리부(50)는 컴퓨터(40)의 입력을 받아 상기 헤드부(10)의 위치를 이동시키는 모터(20), 상기 컴퓨터(40)의 입력을 받는 동기부(31)의 동기신호에 의해 제어되는 광원(30), 상기 수광 광섬유(12)의 출력을 받고 상기 동기부(31)의 동기신호를 받는 카메라부(32), 상기 카메라부(32)의 데이터 출력을 받아 컴퓨터(40)에 전달하는 캡쳐부(33), 상기 컴퓨터(40)의 출력을 받는 디스플레이부(41) 및 저장부(42)로 구성됨을 특징으로 하는 압연 중인 압연 롤의 표면영상 취득장치In the apparatus capable of observing the change of the surface state of the roll in a narrow place even during the rolling operation, comprising a head portion 10 and a processing portion 50, wherein the head portion 10 is a light emitting optical fiber 11, light receiving The optical fiber 12 and the distance sensor 13, the light emitting optical fiber 11 is connected to the output of the light source 30, the light receiving optical fiber 12 is connected to the input of the camera unit 32, The distance sensor 13 is connected to the input of the computer 40, the processor 50 receives the input of the computer 40 to move the position of the head portion 10, the computer 40 The light source 30 controlled by the synchronization signal of the synchronization unit 31 receiving the input of the camera, the camera unit 32 receiving the output of the light receiving optical fiber 12 and receiving the synchronization signal of the synchronization unit 31, Capture unit 33 for receiving the data output from the camera unit 32 to the computer 40, the display unit 41 and the output receiving the output of the computer 40 Section 42 configured as characterized in the image acquisition surface of the rolling roll is being rolled to a device 상기 제 1 항에 있어서, 헤드부(10)의 선단에는 거리 센서(13)를 구비하고, 헤드부(10)의 외부에는 냉각수(51)가 공급되는 워터재킷(50)을 구비하며, 상기 워터재킷(50)의 내부 중앙에 방수관(60)을 설치하고, 상기 방수관(60)의 내부에 발광 광섬유(11)를 배치하며, 상기 발광 광섬유(11)의 내측에 수광 광섬유(12)를 설치함을 특징으로 하는 압연 중인 압연 롤의 표면영상 취득장치According to claim 1, wherein the head portion 10 is provided with a distance sensor 13 at the tip, the outside of the head portion 10 is provided with a water jacket 50 to which the cooling water 51 is supplied, The waterproof tube 60 is installed in the inner center of the jacket 50, the light emitting optical fiber 11 is disposed inside the waterproof tube 60, and the light receiving optical fiber 12 is disposed inside the light emitting optical fiber 11. Apparatus for acquiring surface images of rolling rolls during rolling 압연 작업 중에도 협소한 장소에서 롤의 표면 상태의 변화를 관찰할 수 있는 방법에 있어서, 방열을 위하여 물기둥 또는 물관을 형성시키고, 상기 물기둥 또는 물관을 관통하여 발광 광섬유(11)에 의해 롤(99) 표면에 빛을 조사하며, 상기 반사된 빛을 수광 광섬유(12)에 의해 취득함을 특징으로 하는 압연 중인 압연 롤의 표면영상 취득방법In the method of observing a change in the surface state of a roll in a narrow place even during a rolling operation, the water column or the water pipe is formed for heat dissipation, and the roll 99 is formed by the light emitting optical fiber 11 through the water column or the water pipe. The method for acquiring a surface image of a rolling roll under rolling, wherein the surface is irradiated with light and the reflected light is acquired by the light receiving optical fiber 12.
KR1019970070099A 1997-12-17 1997-12-17 Method and apparatus for obtaining surface image of rolling rolls during rolling KR100325339B1 (en)

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KR100545667B1 (en) * 2001-12-22 2006-01-24 주식회사 포스코 Apparatus for measuring spray pattern on roll surface and method thereof

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KR101219599B1 (en) * 2010-12-22 2013-01-08 재단법인 포항산업과학연구원 Wire rod roll automatically changing system and changing method capable of calculating entering angle of wire rod roll

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KR100545667B1 (en) * 2001-12-22 2006-01-24 주식회사 포스코 Apparatus for measuring spray pattern on roll surface and method thereof

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