KR20000043443A - Method and apparatus for measuring strand of continuous casting machine - Google Patents
Method and apparatus for measuring strand of continuous casting machine Download PDFInfo
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- KR20000043443A KR20000043443A KR1019980059822A KR19980059822A KR20000043443A KR 20000043443 A KR20000043443 A KR 20000043443A KR 1019980059822 A KR1019980059822 A KR 1019980059822A KR 19980059822 A KR19980059822 A KR 19980059822A KR 20000043443 A KR20000043443 A KR 20000043443A
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- pcm
- continuous casting
- casting machine
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/14—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring distance or clearance between spaced objects or spaced apertures
- G01B7/15—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring distance or clearance between spaced objects or spaced apertures being regularly spaced
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/16—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring distance of clearance between spaced objects
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/22—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring angles or tapers; for testing the alignment of axes
- G01B21/24—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring angles or tapers; for testing the alignment of axes for testing alignment of axes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/16—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/30—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring angles or tapers; for testing the alignment of axes
- G01B7/31—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Continuous Casting (AREA)
Abstract
Description
본 발명은 비 주조시에 세그먼트 내부로 삽입시켜 더미바의 이송에 따라 발생되는 센서의 측정 신호를 이용하여 몰드와 롤 통과시점을 인식함은 물론 스트랜드의 측정방법 및 그 장치에 관한 것이다.The present invention relates to a method for measuring a strand and a device, as well as to recognize a time point for passing a mold and a roll by using a measurement signal of a sensor generated according to a transfer of a dummy bar by inserting into a segment during non-casting.
일반적으로 용강을 일정한 두께와 폭을 갖는 슬라브로 생산하는 연주기에서 생산되는 슬라브의 품질과 생산성을 향상시키기 위해서는 주조시 연주기 가이드롤의 정렬상태와 회전 불량 상태 등의 체크가 필수적이다.In general, in order to improve the quality and productivity of the slabs produced in the slabs produced from slabs having a constant thickness and width, it is necessary to check the alignment and rotation of the guide rollers during casting.
종래에는 측정장치을 몰드로부터 세그먼트의 내부로 통과시키면서 각 세그먼트의 스트랜드를 측정하고 있으며 이러한 종래의 측정장치는 세그먼트에 설치된 롤의 유동을 방지하기 위한 지지부재가 몰드를 통과하면서 몰드의 표면을 파손시키게 되어 슬라브표면에 결합을 발생시켰음은 물론 측정장치로 측정된 데이터값은 측정완료후 별도의 작업을 수행하 얻게되어 측정시간이 과다하게 소요되는 문제점이 있었다.The conventional measuring device is measuring the strand of each segment while passing the measuring device from the mold to the inside of the segment. The conventional measuring device breaks the surface of the mold while the support member for preventing the flow of the roll installed in the segment passes through the mold. As a result of the coupling to the surface of the slab as well as the data value measured by the measuring device was obtained to perform a separate operation after the measurement was completed, there was a problem that takes too much measurement time.
본 발명은 상기 문제점을 해결하기 위하여 발명한 것으로서, 롤을 지지하는 지지부재를 선택적으로 이동시켜 몰드의 손상을 방지함은 물론 측정장치로 측정된 데이터값을 측정과 동시에 얻을 수 있는 연속주조기 스트랜드 측정방법 및 그 장치를 제공하는데 그 목적이 있다.The present invention has been invented to solve the above problems, the continuous casting machine strand measurement can be obtained at the same time to measure the data value measured by the measuring device as well as to prevent damage to the mold by selectively moving the support member for supporting the roll Its purpose is to provide a method and an apparatus thereof.
상기 목적을 달성하기위한 본 발명은 본 발명은 비 주조시에 세그먼트 내부로 삽입시켜 더미바의 이송에 따라 발생되는 센서의 측정 신호를 이용하여 몰드와 롤 통과시점을 인식함은 물론 스트랜드 측정장치에 관한 것으로서, 연속주조기의 세그먼트를 통과하면서 스트랜드를 측정하도록 하는 장치를 형성함에 있어서, 상기 연속주조기에 설치된 체인과 연결되도록 양단에 연결링크가 형성된 몸체와, 상기 몸체의 양측에 출몰가능하게 설치되어 스프링의 탄성력으로 인출되고 유압모터에서 발생되는 유압에 의해서 삽입되는 앤빌과, 상기 몸체에 설치되며 세그먼트에 설치된 롤의 상태 즉 롤갭을 측정하는 롤갭센서와, 롤의 밴딩을 측정하는 롤밴딩센서와, 롤정렬상태를 측정하는 측정바 및 스프레이노즐의 막힘을 측정하는 스프레이측정센서와, 상기 각 센서에서 측정된 측정값을 발신하는 PCM송신기와, 상기 PCM송신기에서 발생된 신호를 수신하는 PCM수신기에 연결되어 있는 PCM디코더로 이루어지며 상기 연속주조기의 스트랜드를 측정하는 센서가 설치된 몸체에 전원이 공급되면 각 센서의 모든 제어 파라미터를 초기화하는 단계와, 유압 모터와 서보밸브를 작동시켜 앤빌을 몸체로 내부로 삽입시키는 단계와, 상기 몸체에 연결된 체인을 당겨 몸체가 이송됨에 따라 상기 몸체가 몰드를 통과 한 후 3번째 롤이 통과됨을 확인함과 동시에 유압모터와 서보밸브를 오프하여 스프링의 탄성력에 의해서 앤빌이 몸체로부터 튀어나오도록 하여 롤의 유동을 방지하도록 하는 단계와, 상기 몸체를 이동시키면서 측정된 롤의 상태 즉 롤갭과 롤밴딩 및 롤정렬 그리고 스프레이노즐의 막힘을 PCM송신기로 송신하는 단계와, 상기 PCM송신기에서 송신된 신호를 PCM수신기로 수신하여 PCM디코더로 디코딩하는 단계로 이루어져 연속주조기의 스트랜드를 측정하도록 한 것이다.The present invention for achieving the above object is inserted into the segment at the time of non-casting by using the measurement signal of the sensor generated by the transfer of the dummy bar to recognize the time point passing through the mold and roll as well as to the strand measuring device The present invention relates to a device for measuring a strand while passing a segment of a continuous casting machine, the body having connecting links formed at both ends to be connected to a chain installed in the continuous casting machine, and installed on both sides of the body so as to spring out. Anvil drawn out by the elastic force of the elastic force and inserted by the hydraulic pressure generated by the hydraulic motor, a roll gap sensor for measuring the roll gap installed on the body, that is, the roll gap, a roll bending sensor for measuring the bending of the roll, A measuring bar for measuring alignment and a spray measuring sensor for measuring plugging of the spray nozzle, PCM transmitter that transmits the measured value measured by each sensor, and PCM decoder connected to the PCM receiver that receives the signal generated by the PCM transmitter, the power is supplied to the body is installed a sensor for measuring the strand of the continuous casting machine When supplied, initializing all control parameters of each sensor, actuating the hydraulic motor and servovalve to insert the anvil into the body, and pulling the chain connected to the body to transfer the body as the body transfers the mold. At the same time, after confirming that the third roll passes, the hydraulic motor and the servovalve are turned off to prevent the flow of the roll by anvil coming out of the body by the elastic force of the spring, and measuring while moving the body. Roll condition, roll bending and roll alignment, and clogging of spray nozzle to PCM transmitter And receiving the signal transmitted from the PCM transmitter to the PCM receiver and decoding the PCM decoder to measure the strand of the continuous casting machine.
도 1은 본 발명에 따른 스트랜드 측정장치를 도시한 측면도 및 평면도,1 is a side view and a plan view of a strand measuring apparatus according to the present invention,
도 2는 본 발명에 따른 스트랜드 측정장치의 개략도,2 is a schematic diagram of a strand measuring apparatus according to the present invention;
도 3은 본 발명에 따른 스트랜드 측정장치의 측정상태를 도시한 평면도,3 is a plan view showing a measurement state of the strand measuring apparatus according to the present invention,
도 4는 본 발명에 따른 스트랜드 측정장치의 측정과정을 나타내는 블럭도,4 is a block diagram showing a measurement process of the strand measuring apparatus according to the present invention;
도 5는 본 발명에 따른 스트랜드 측정장치의 신호에 의한 통과 롤의 번호 인식 타이밍도.5 is a timing recognition number of the pass roll by the signal of the strand measuring apparatus according to the present invention.
< 도면의 주요부에 대한 부호의 설명 ><Description of Symbols for Main Parts of Drawings>
M : 몰드 R : 롤M: Mold R: Roll
1 : 몸체 2 : 연결링크1: Body 2: Link
10 : 앤빌 11 : 유압모터10: anvil 11: hydraulic motor
12 : 서보밸브 13 : 스프링12: servo valve 13: spring
21 : 롤갭센서 22 : 롤밴딩센서21: roll gap sensor 22: roll bending sensor
23 : 측정바 24 : 스프레이측정센서23: measuring bar 24: spray measuring sensor
30 : PCM송신기 40 : PCM수신기30: PCM transmitter 40: PCM receiver
50 : PCM디코더50: PCM decoder
이하 본 발명을 도시한 첨부도면을 참조하여 상세히 설명하면 다음과 같다.Hereinafter, described in detail with reference to the accompanying drawings showing the present invention.
도 1은 본 발명에 따른 스트랜드 측정장치를 도시한 측면도 및 평면도이고, 본 발명은 측정장치 몸체(1)의 양단에는 체인(도면 미도시)과 연결하기 위한 연결링크(2)가 형성되어 있고 양측면에는 세그먼트에 설치된 롤(R)에 긴밀히 접촉되어 롤(R)의 유동을 방지하는 앤빌(10)에는 유압모터(11)에 의해 작동되는 서보밸브(12)가 연결되어 있고 상기 앤빌(10)은 스프링(13)으로 탄력설치되어 있다.1 is a side view and a plan view showing a strand measuring apparatus according to the present invention, the present invention is formed at both ends of the measuring device body (1) connecting links (2) for connecting with the chain (not shown) is formed on both sides In the anvil 10 which is in close contact with the roll (R) installed in the segment to prevent the flow of the roll (R) is connected to the servo valve (12) operated by the hydraulic motor (11) and the anvil (10) It is elastically installed by the spring 13.
한편 몸체(1)의 양측면에는 롤(R)의 갭을 측정하는 롤갭센서(21)과 롤(R)의 밴딩을 측정하는 롤밴딩센서(22) 및 롤(R)의 정렬상태를 측정하는 측정바(23)가 설치되어 있고 상기 롤(R)과 롤(R)의 사이에 설치된 스프레이노즐(도면 미도시)의 막힘을 측정하는 스프레이측정센서(24)가 설치되어 있으며 상기 각 센서에서 측정된 신호를 발신하는 PCM송신기(30)가 설치되어 있다.On the other hand, on both sides of the body (1) the roll gap sensor 21 for measuring the gap of the roll (R) and the roll bending sensor 22 for measuring the bending of the roll (R) and the measurement for measuring the alignment of the roll (R) The bar 23 is provided and a spray measurement sensor 24 is installed to measure the blockage of the spray nozzle (not shown) installed between the roll R and the roll R. The PCM transmitter 30 which transmits a signal is provided.
또한 상기 PCM송신기(30)에서 발신된 신호를 수신하는 PCM수신기(40)는 PCM디코더(50)와 연결되어 있다.In addition, the PCM receiver 40 that receives the signal transmitted from the PCM transmitter 30 is connected to the PCM decoder 50.
이와같이 구성된 본 발명의 측정장치는 연주 슬래브의 초기 인발에 이용되는 더미바(dummy bar) 대신에 체인에 연결링크(2)를 연결하고, 더미바 인출시와 동일한 방법으로 연주기 스트랜드를 통과시킨다.The measuring device of the present invention configured as described above connects the connecting link 2 to the chain instead of the dummy bar used for initial drawing of the playing slab, and passes the machine strand in the same manner as when the dummy bar is taken out.
이 때 체인은 더미바 카(dummy bar car)와 인발 롤에 의해 이송되며 인발 시에 걸리는 과다한 압축력에 의해 측정 장치에 가해질 수 있는 기계적인 부하를 피하기 위하여 측정장치가 통과하는 직전에 인발 롤의 갭이 벌어지도록 하여야 한다.At this time, the chain is carried by the dummy bar car and the draw roll, and the gap of the draw roll just before the measuring device passes to avoid the mechanical load that can be applied to the measuring device by the excessive compression force applied during drawing. This should happen.
또한 장치에는 스프링력이 작용하는 앤빌(10)이 있으며 스프링력의 크기는 주조시 롤에 미치는 반발력과 동일한 정도로 하며, 장치가 상하 롤의 중심에 오도록 한다.In addition, the device has an anvil (10) that the spring force acts and the size of the spring force is the same as the repulsive force on the roll during casting, so that the device is in the center of the upper and lower rolls.
앤빌(10)은 몰드를 통과할때는 장치의 내부에 있는 유압모터(11)에 의해서 작동되는 서보밸브(12)에 의해 안 쪽으로 완전히 들어가며 몰드 통과 완료 시점에서는 유압모터(11)가 정지하여 스프링(13)의 탄성력에 의해 다시 인출되어 롤(R)을 지지한다.When the anvil 10 passes through the mold, the anvil 10 enters the inside completely by the servovalve 12 operated by the hydraulic motor 11 inside the apparatus. When the mold passage is completed, the hydraulic motor 11 stops and the spring 13 It is withdrawn again by the elastic force of) and supports the roll R.
한편 원격에 의하여 측정장치의 기동, 롤 번호 인식에 의한 앤빌(10)의 자동 동작 제어 등의 모든 순서를 내부 컨트롤러에 의해 자동으로 이루어지므로 측정 중간에 작업자의 수동 개입이 전혀필요 없는 자동 측정 시스템이다.On the other hand, all the procedures such as the start of the measuring device remotely and automatic operation control of the anvil 10 by roll number recognition are automatically performed by the internal controller. .
본 발명의 측정장치는 도 2에 도시된 바와같이 각 측정센서에서 측정된 신호는 처리기를 거쳐 아날로그 입력 단자와 연결되며 컨트롤러에서 롤 갭 및 밴딩량 측정용 변위센서 신호에 의해 인식된 롤 번호를 디지털 I/O 를 통해 입력된다.In the measuring apparatus of the present invention, as shown in FIG. 2, the signal measured by each measuring sensor is connected to an analog input terminal via a processor, and the roll number recognized by the displacement sensor signal for measuring the roll gap and the bending amount in the controller is digital. It is entered via I / O.
상기 입력 신호는 PCM 인코더를 통해 PCM 방식의 2진수로 변환되어 PCM 전송기(transmitter)를 통해 전송되며 몰드(mould) 바로 위에 설치된 리시버(receiver) 를 거쳐 분석용 컴퓨터에 장착된 PCM 디코더에 입력되고, 다시 센서 출력에 따른 물리량 환산식에 의해 변환되어 각종의 연산 처리를 거치게 된다.The input signal is converted into a binary number of a PCM method through a PCM encoder, transmitted through a PCM transmitter, and input to a PCM decoder mounted on an analysis computer through a receiver installed directly on a mold. It is converted by the physical quantity conversion equation according to the sensor output again and undergoes various calculation processes.
한편 측정장치의 주 컨트롤러는 8k의 EEPROM과 96바이트의 SRAM를 포함한 마이크로프로세서로 27개의 I/O 포트를 가지고 있으며 이중 아날로그 디지털 변환은 8채널(8비트)이 가능하다.The main controller of the measuring device, on the other hand, is a microprocessor with 8k EEPROM and 96 bytes of SRAM, with 27 I / O ports. Dual analog-to-digital conversion is available for eight channels (8 bits).
그리고 측정장치 몸체(1)에 설치된 롤갭센서(21)와 롤밴딩센서(22)에서 발생되는 LVDT 신호는 앤빌(10)의 작동과 롤(R) 통과 시점의 인식을 위해 아날로그 입력한다.In addition, the LVDT signal generated by the roll gap sensor 21 and the roll bending sensor 22 installed in the measuring device body 1 is analog input for the operation of the anvil 10 and the recognition of the time of passing the roll R.
또한 유압모터(11) 및 서보밸브(12)의 온/오프 신호는 TTL로 보내며 인식된 롤 번호를 블록(8비트)으로 텔리미터리의 디지털 입력 채널로 보낸다.In addition, the on / off signals of the hydraulic motor 11 and the servovalve 12 are sent to the TTL, and the recognized roll number is sent to the digital input channel of the telemetry in a block (8 bits).
한편 내부에 설치된 배터리를 사용하므로 전원공급을위한 전원공급선이 불요필요하며 장치가 간단하게 되고 유압 펌프의 작동, 데이터 수집 및 무선 통신, 컨트롤러 등 모든 전원을 배터리 전원을 이용하도록 되어 있다.On the other hand, since the internal battery is used, power supply line for power supply is unnecessary, and the device is simplified and all the power including the operation of the hydraulic pump, data collection and wireless communication, and the controller are used for the battery power.
앤빌(10)은 롤(R) 통과시 내부에 장착된 스프링(13)에 의해 롤(R)에 반력을 부가함으로써 주조 상태에서 슬라브의 철정압에 의해 롤이 구속된 것과 같은 상태가 되도록 하는 역할을 한다.When the anvil 10 passes through the roll R, the anvil 10 applies a reaction force to the roll R by a spring 13 mounted therein so that the roll is restrained by the iron static pressure of the slab in the casting state. Do it.
따라서 도 3에 도시된 바와같이 몰드(M)를 통과 시점에서는 장치 내부에 장착된 유압모터(11)에 의해 앤빌(10)이 완전히 안으로 들어가며 몰드(M) 통과 후에는 유압모터(11)가 정지하여 스프링(13)의 탄성력으로 앤빌(10)이 인출되어 롤(R)을 지지하게 된다.Therefore, as shown in FIG. 3, when passing through the mold M, the anvil 10 enters completely by the hydraulic motor 11 mounted inside the apparatus, and after passing through the mold M, the hydraulic motor 11 stops. The anvil 10 is drawn out by the elastic force of the spring 13 to support the roll R.
상기 앤빌(10)이 몰드(M)를 완전히 통과하지 않은 상태에서 인출되면 몰드(M) 벽면의 구리(Cu)판에 흠집을 내어 슬라브의 표면에 크랙을 유발시키게 하는 요인이 되므로 도 4에 도시된 바와같이 전원이 공급되면 동작을 시작하여 먼저 모든 제어 파라미터를 초기화하고 유압모터(11)를 작동시키켜 서보밸브(11)를 온 시키면 앤빌(10)은 몸체(1)의 내부로 들어오게 된다.When the anvil 10 is drawn out without completely passing through the mold M, the copper sheet on the wall of the mold M is scratched to cause cracks on the surface of the slab. As shown in the figure, when the power is supplied, the operation starts and all the control parameters are initialized first and the hydraulic motor 11 is operated to turn on the servovalve 11 so that the anvil 10 enters the interior of the body 1. .
이 후 장치가 이송됨에 따라 롤갭센서(21)에서 몰드(M)를 통과함을 인식하고 세그먼트에 설치된 롤 중 3번째 롤을 통과하게 되면 몸체(1)가 몰드(M)를 완전히 통과하게 되므로 유압모터(11)를 정지시키고 서보밸브(11)를 오프하여 스프링(13)의 탄성력에 의해서 앤빌(10)이 튀어나오도록 한다.After that, as the device is transferred, the roll gap sensor 21 recognizes that the mold M passes, and when the third roll of the rolls installed in the segment passes, the body 1 completely passes through the mold M. The motor 11 is stopped and the servovalve 11 is turned off so that the anvil 10 springs out by the elastic force of the spring 13.
상기 통과 시점의 롤 번호 인식(roll number identification)은 롤갭 측정용 LVDT 신호를 이용한 것으로 장치 내에 장착된 주 컨트롤러에 의해 수행되며 장치 이송 시에는 각 롤 들의 통과를 감지한 후 연속적으로 누적된 롤 번호를 병렬 데이터 버스를 통해 PCM 인코더 유니트(encoder unit)의 디지틀 I/O 에 입력되어 센서의 아날로그 신호와 함께 디지틀화되어 무선 전송되어 컴퓨터에 입력된다.The roll number identification at the time of passing is performed by the main controller mounted in the apparatus by using the roll gap measurement LVDT signal, and during the apparatus transfer, the roll numbers accumulated continuously after detecting the passage of each roll are passed. It is input to the digital I / O of the PCM encoder unit via the parallel data bus, digitalized with the analog signal of the sensor, and transmitted wirelessly to the computer.
상기 롤 번호는 앤빌(10)의 동작 제어 등에 필요한 것으로 정확한 인식이 요구된다. 실제 측정 시에는 롤 번호의 인식은 롤과의 접촉에 의한 LVDT 신호에 의한 것으로 롤 갭이 과대하거나 롤이 비정렬이 발생하여 롤이 인식되지 않는 경우(no identification)와 세그먼트나 롤에 스캐일(scale)이 부착된 경우에 이를 롤로 잘못 인식하는 경우(miss dentification)가 있기 때문에 이러한 것을 고려하여 롤 번호 인식 로직을 결정하여야 한다.The roll number is required to control the operation of the anvil 10, etc., and accurate recognition is required. In actual measurement, roll number recognition is due to the LVDT signal due to contact with the roll, and the roll is not recognized due to excessive roll gap or roll misalignment (no identification) and scale on the segment or roll. The roll number recognition logic must be determined in consideration of this, since there is a case in which a missed identification is recognized as a roll when a) is attached.
도 5는 실제 롤 갭 신호에 의해 롤 번호 인식과 앤빌의 인출 타이밍을 나타낸 그림으로써 롤 갭 측정용 LVDT 신호를 이용하여 순차적으로 몰드에 진입, 몰드 통과 → 1번 롤 진입 → 1번 롤 통과 → 2번 롤 진입 → 2번 롤 통과 → 3번 롤 진입, 다른 LVDT 신호(L08)가 1번 롤의 통과하는 시점을 확인하고 유압 모터와 서보밸브를 오프(off) 한다. 이 때 장치는 몰드를 완전하게 통과하게 된다.5 is a diagram showing roll number recognition and anvil take-out timing by actual roll gap signal, sequentially entering mold using roll gap measurement LVDT signal, mold passing → roll entering 1 → roll passing 1 → 2 1st roll entry → 2nd roll passage → 3rd roll entry, check if the other LVDT signal (L08) passes 1st roll and turn off the hydraulic motor and servo valve. The device then passes completely through the mold.
상기와 같이 몸체(1)가 몰드(M)를 통과하면 상기 몸체(1)에 설치된 롤갭센서(21)는 슬랍브의 두께를 일정하게 유지하기 위한 롤(R)의 갭을 측정하고 롤밴딩센서(22)는 슬라브에서 발생되는 열에 의해 변형된 롤(R)의 밴딩량을 측정하며 측정바(23)에서는 각 롤(R)의 정렬상태를 측정하고 롤(R)과 롤(R)사이에 설치된 스프레이의 막힘은 스프레이측정센서(24)에서 측정되며 상기 각 센서에서 측정된 테이터값은 PCM송신기(30)를 통하여 송신되어 PNM디코더에 설치된 PCM수신기(40)로 수신하게 되므로 측정과 동시에 측정된 데이터값을 얻게 되는 것이다.As described above, when the body 1 passes through the mold M, the roll gap sensor 21 installed in the body 1 measures the gap of the roll R to maintain a constant thickness of the slab, and the roll bending sensor (22) measures the bending amount of the roll (R) deformed by the heat generated in the slab, the measuring bar 23 measures the alignment of each roll (R) between the roll (R) and the roll (R) The clogging of the spray is measured by the spray measuring sensor 24 and the measured data values are transmitted through the PCM transmitter 30 and received by the PCM receiver 40 installed in the PNM decoder. You get a data value.
이상에서와 같이 본 발명은 세그먼트에 설치된 롤을 지지하기 위하여 설치된 앤빌에 의해서 몰드가 손상되는 것을 방지함은 물론 몸체에 설치된 각종센서에서 측정된 세그먼트의 롤상태를 측정과 동시에 확인할 수 있게 되어 작업시간의 단축은 물론 정확한 측정값을 얻을 수 있게 되는 매우 유용한 발명이다.As described above, the present invention prevents the mold from being damaged by the anvil installed to support the roll installed in the segment, as well as simultaneously checks the roll state of the segment measured by various sensors installed in the body. It is a very useful invention that can shorten and of course obtain accurate measured values.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019980059822A KR20000043443A (en) | 1998-12-29 | 1998-12-29 | Method and apparatus for measuring strand of continuous casting machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019980059822A KR20000043443A (en) | 1998-12-29 | 1998-12-29 | Method and apparatus for measuring strand of continuous casting machine |
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| Publication Number | Publication Date |
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| KR20000043443A true KR20000043443A (en) | 2000-07-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| KR1019980059822A KR20000043443A (en) | 1998-12-29 | 1998-12-29 | Method and apparatus for measuring strand of continuous casting machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017073950A1 (en) * | 2015-10-28 | 2017-05-04 | 주식회사 포스코 | Device for measuring roll gap of casting machine |
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|---|---|---|---|---|
| JPS58224058A (en) * | 1982-06-22 | 1983-12-26 | Kawasaki Steel Corp | Transfer device provided with measuring device to be inserted into multiple continuous rolls of continuous casting installation |
| JPH01254360A (en) * | 1988-03-31 | 1989-10-11 | Sumitomo Metal Ind Ltd | Apparatus and method for measuring roll alignment and roll interval |
| JPH02104457A (en) * | 1988-08-31 | 1990-04-17 | Gladwin Corp | Continuous casting facility of molten metal |
| JPH0415510A (en) * | 1990-05-09 | 1992-01-20 | Sumitomo Metal Ind Ltd | Method and device for detecting roll rotation and measuring roll interval |
| JPH0587702A (en) * | 1991-09-30 | 1993-04-06 | Nippon Steel Corp | Continuous casting facility diagnostic device |
| JPH07214264A (en) * | 1994-02-09 | 1995-08-15 | Nippon Steel Corp | Synthetical on-line diagnosing instrument for roll for continuous casting |
| JPH09295114A (en) * | 1996-05-09 | 1997-11-18 | Sumitomo Metal Ind Ltd | Device for detecting abnormality of roll rotation and abnormality of spray nozzle |
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- 1998-12-29 KR KR1019980059822A patent/KR20000043443A/en not_active Application Discontinuation
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58224058A (en) * | 1982-06-22 | 1983-12-26 | Kawasaki Steel Corp | Transfer device provided with measuring device to be inserted into multiple continuous rolls of continuous casting installation |
| JPH01254360A (en) * | 1988-03-31 | 1989-10-11 | Sumitomo Metal Ind Ltd | Apparatus and method for measuring roll alignment and roll interval |
| JPH02104457A (en) * | 1988-08-31 | 1990-04-17 | Gladwin Corp | Continuous casting facility of molten metal |
| JPH0415510A (en) * | 1990-05-09 | 1992-01-20 | Sumitomo Metal Ind Ltd | Method and device for detecting roll rotation and measuring roll interval |
| JPH0587702A (en) * | 1991-09-30 | 1993-04-06 | Nippon Steel Corp | Continuous casting facility diagnostic device |
| JPH07214264A (en) * | 1994-02-09 | 1995-08-15 | Nippon Steel Corp | Synthetical on-line diagnosing instrument for roll for continuous casting |
| JPH09295114A (en) * | 1996-05-09 | 1997-11-18 | Sumitomo Metal Ind Ltd | Device for detecting abnormality of roll rotation and abnormality of spray nozzle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2017073950A1 (en) * | 2015-10-28 | 2017-05-04 | 주식회사 포스코 | Device for measuring roll gap of casting machine |
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