KR20020020343A - Automatic detecting system of folded strip head part - Google Patents

Automatic detecting system of folded strip head part Download PDF

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Publication number
KR20020020343A
KR20020020343A KR1020000053457A KR20000053457A KR20020020343A KR 20020020343 A KR20020020343 A KR 20020020343A KR 1020000053457 A KR1020000053457 A KR 1020000053457A KR 20000053457 A KR20000053457 A KR 20000053457A KR 20020020343 A KR20020020343 A KR 20020020343A
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KR
South Korea
Prior art keywords
pinch rolls
strip
detectors
gap
hydraulic cylinders
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KR1020000053457A
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Korean (ko)
Inventor
변귀환
김영해
황호선
Original Assignee
이구택
포항종합제철 주식회사
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Priority to KR1020000053457A priority Critical patent/KR20020020343A/en
Publication of KR20020020343A publication Critical patent/KR20020020343A/en

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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
    • B21B38/10—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-gap, e.g. pass indicators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B33/00—Safety devices not otherwise provided for; Breaker blocks; Devices for freeing jammed rolls for handling cobbles; Overload safety devices
    • 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
    • B21B38/08—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-force
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B39/006—Pinch roll sets

Abstract

PURPOSE: A system for automatically detecting folded strip head part in pinch rolls is provided which detects whether a strip head part is folded or not by analyzing digital signals of pinch roll gaps and output and set values of forces when a strip rolled from a finish roll mill passes through the pinch rolls for coiling in hot rolling process. CONSTITUTION: The system for automatically detecting folded strip head part in pinch rolls comprises left and right hydraulic cylinders(12,13) which are actuators for adjusting a gap between upper and lower pinch rolls(3,4); left and right gap detectors(9,10) which measure left and right gaps between the upper and lower pinch rolls(3,4) by measuring strokes operated by the hydraulic cylinders(12,13); left and right force detectors(7,8) which detect forces operated on the hydraulic cylinders(12,13); an operating control part(11) which analyzes signals and produces results by collecting output values of the left and right gap detectors(9,10) and the left and right force detectors(7,8) during coiling; and a management control computer(14) which outputs folding warning voice information to workers by receiving folding detection information from the operating control part(11).

Description

열연 스트립 선단부 핀치롤 접물림 자동판정 시스템{Automatic detecting system of folded strip head part}Automatic detecting system of folded strip head part

본 발명은 열간 압연공정에 의해 사상압연된 스트립을 권취하기 위해서 핀치롤을 통과시킬 경우 그 스트립의 선단부에서 2중 접물림이 발생되었는가 여부가 자동 파악되어 접물림 발생시 작업자에게 음성으로 고지함으로써 스트립의 권취 작업성이 개선되도록 한 열연스트립 선단부 핀치롤 접물림 자동판정 시스템에 관한 것이다.According to the present invention, when a pinch roll is passed in order to wind up a strip rolled by a hot rolling process, whether or not double folding occurs at the leading end of the strip is automatically detected, and when the folding occurs, a negative signal is notified to the operator. The present invention relates to a hot roll strip end pinch roll fold automatic determination system for improving winding workability.

일반적으로 스트립 선단부가 사상압연기를 통과한 후 핀치롤 스탠드를 거쳐 권취기에 권취되기 전까지의 스트립은 고온(약 600 ℃정도)이어서 장력을 가지지 못한다. 따라서 스트립이 권취기 앞의 핀치롤에 인입될 때 스트립 선단부에서 접물림이 나타날 수 있다. 특히 두께가 얇은 스트립의 경우 더욱 그러한 문제가 자주 발생되고 있다.In general, the strip until the end of the strip passes through the finishing mill, and is wound to the winder through the pinch roll stand is not high tension (about 600 ℃). Thus, when the strip is drawn into the pinch roll in front of the winder, engravement may appear at the strip tip. Especially in the case of thin strips, such problems are more frequent.

스트립의 선단부가 접물려진 상태에서 핀치롤을 통과하여 권취롤에 권취되는 경우 육안 검사를 통하여 그 권취된 스트립을 다른 권취롤에 옮겨 감아 마지막의 접물려진 부분을 잘라내야 하는 2중 작업이 요구된다.If the leading edge of the strip is wound into the winding roll through the pinch roll while the strip is engaged, a double operation is required to move the wound strip to another winding roll by visual inspection to cut off the last folded portion.

이러한 육안검사를 기반으로 하는 스트립 선단부 접물림 검사방식은 작업자의 숙련도에 따라 작업 정도가 결정되며, 그 육안검사 환경이 고온이나 유해가스 발생 환경하에서는 정상적으로 진행되기 곤란하기 때문에 스트립 선단부 검사를 권취작업 완료후에 수행하게 되므로 스트립 권취불량이 발생된 경우에는 그 만큼의소요시간과 공정을 거쳐 재 권취해야 하는 불편이 있었다.Based on the visual inspection, the strip tip folding inspection method is determined according to the skill of the operator, and the strip tip inspection is completed because the visual inspection environment is difficult to proceed normally under high temperature or harmful gas generation environment. Since it is performed later, if the strip winding failure occurred, it was inconvenient to rewind through the required time and process.

본 발명은 상기와 같은 종래의 문제점을 해소하기 위한 것으로, 본 발명의 목적은 기존의 핀치롤 갭 및 포스 제어를 위한 핀치롤 갭 위치검출기와 스트립이 핀치롤을 통과이후 발생되는 핀치롤 포스 출력치의 신호해석에 의하여 갭 및 포스 출력치가 설정치 대비 일정 시간이상 과도한 경우 핀치롤 통과시 스트립이 2중으로 접물림 상태인 것으로 판정하고, 그 결과를 음성정보로 제공하므로써 고온상태에서 이루어지는 육안검사를 대체하여 검사 미스를 방지할 수 있도록 한 열연스트립 선단부 핀치롤 접물림 자동판정 시스템을 제공하는데 있다The present invention is to solve the conventional problems as described above, an object of the present invention is to pinch roll gap position detector for pinch roll gap and force control and the pinch roll force output value generated after the strip passes through the pinch roll If the gap and force output value exceeds the set value by a certain time, it is determined that the strip is double-folded when passing through the pinch roll, and replaces the visual inspection performed at high temperature by providing the result as voice information. To provide automatic detection system for pinch roll folds at the end of hot rolled strips to prevent miss

도 1은 열간 압연공정에서 사상압연된 스트립의 권취 과정을 설명하는 개략도이다.1 is a schematic view illustrating a winding process of a strip that is normally rolled in a hot rolling process.

도 2는 본 발명 시스템의 블록구성도이다.2 is a block diagram of a system of the present invention.

도 3은 정상상태에서의 각 센서별 검출신호 출력파형도이다.3 is a detection signal output waveform diagram of each sensor in a steady state.

도 4는 스트립 접물림 상태에서의 각 센서별 검출신호 출력파형도이다.4 is a detection signal output waveform diagram for each sensor in a strip engaged state.

도 5는 본 발명에 다른 접물림 신호 발생을 위한 로직회로 구성도이다.5 is a schematic diagram of a logic circuit for generating an engagement signal according to the present invention.

※도면의 주요부분에 대한 부호의 설명※※ Explanation of symbols about main part of drawing ※

1 : 사상압연기 2 : 스트립1: finishing mill 2: strip

3 : 상부 핀치롤 4 : 하부 핀치롤3: upper pinch roll 4: lower pinch roll

5 : 유니트 롤 6 : 권취기5: unit roll 6: winding machine

7 : 운전측 유압검출기 8 : 구동측 유압검출기7: Driving side hydraulic detector 8: Driving side hydraulic detector

9 : 운전측 핀치롤 갭 검출기 10 : 구동측 핀치롤 갭 검출기9: driving side pinch roll gap detector 10: driving side pinch roll gap detector

11 : 연산제어부(PLC) 12 : 운전측 핀치롤 구동 유압실린더11: Operation control unit (PLC) 12: Operation side pinch roll drive hydraulic cylinder

13 : 구동측 핀치롤 구동 유압실린더13: Drive side pinch roll drive hydraulic cylinder

14 : 관리제어컴퓨터(SCC)14: Management control computer (SCC)

상기와 같은 목적을 달성하기 위한 본 발명 시스템은 열연 사상압연기에서 압연된 스트립의 선단부가 핀치롤 통과시 핀치롤 갭 및 포스를 제어하기 위한 핀치롤 압하 실린더와, 실린더에 부착된 실린더 스트로크 검출을 위한 실린더 위치검출기와, 스트립이 핀치롤을 통과시 핀치롤에 작동되는 포스 측정을 위한 실린더 압력검출기와, 핀치롤 갭 과 포스 설정치와 출력치의 신호해석 수행 및 접물림 여부를 판정하는 연산제어부와, 상기 연산제어부에 기준값을 제공하고 이 연산제어부로부터의 접물림 판정 정보를 받아 작업자에게 접물림 경고 음성정보를 출력하는 관리제어컴퓨터를 포함하는 것을 특징으로 한다.The present invention system for achieving the above object is a pinch roll pressing cylinder for controlling the pinch roll gap and force when the leading end of the strip rolled in the hot rolling mill and pinch roll passes, and for detecting the cylinder stroke attached to the cylinder A cylinder position detector, a cylinder pressure detector for measuring force actuated by the pinch roll when the strip passes through the pinch roll, a calculation control unit for determining whether the pinch roll gap and the force setting value and the output value are interpreted and folded; And a management control computer for providing a reference value to the operation control unit and receiving the engagement determination information from the operation control unit and outputting the engagement warning voice information to the operator.

첨부한 도면을 참고로 하여 본 발명을 설명하면 다음과 같다.Hereinafter, the present invention will be described with reference to the accompanying drawings.

도 1은 일반적인 열간 압연 스트립의 권취 과정을 개략적으로 나타낸 것으로, 열간압연에서 사상압연기(1)를 통과한 스트립(2)이 상,하 핀치롤(3,4) 통과후 스트립(2)을 권취기(6)로 가이드하는 유니트 롤(5)로 구성된 권취공정을 나타내고 있다. 여기에서 스트립(2)은 상,하 핀치롤(3,4)에 일정한 포스(FORCE)를 작동시켜 권취기(6)와 상,하 핀치롤(3,4)간에 일정한 장력이 부여된 상태로 스트립 권취가 이루어지게 된다Figure 1 schematically shows a winding process of a general hot rolled strip, the strip (2) passing through the finishing mill (1) in hot rolling wound the strip (2) after passing the upper and lower pinch rolls (3,4) The winding process comprised by the unit roll 5 which guides to the odor | feederg 6 is shown. Herein, the strip 2 operates a constant force on the upper and lower pinch rolls 3 and 4 so that a constant tension is applied between the winder 6 and the upper and lower pinch rolls 3 and 4. Strip winding is done

도 2는 본 발명에 따른 스트립 접물림 자동판정 시스템의 블록구성도이다. 여기에서 참고되는 바와 같이, 본 발명 시스템은 상,하부 핀치롤(3,4)의 갭 을 조정하는 액츄에이터인 좌,우 2개의 유압 실린더(12,13)와, 상기 유압실린더(12,13)의 작동 스트로크 측정에 의하여 상,하부 핀치롤(3,4)의 좌, 우 갭을 측정하는 좌,우 갭 검출기(9,10)와, 상기 유압실린더(12,13)에 작동하는 포스를 검출하기 위한 좌,우 포스 검출기(7,8)와, 상기 갭 검출기(9,10) 및 포스 검출기(7,8)의 출력치를 권취중에 수집하여 신호해석과 결과를 생성하는 연산제어부(11)와, 상기 연산제어부로부터의 접물림 판정 정보를 받아 작업자에게 접물림 경고 음성정보를 출력하는 관리제어컴퓨터(14)로 이루어져 있다.2 is a block diagram of a strip interlocking automatic determination system according to the present invention. As referred to herein, the system of the present invention is an actuator for adjusting the gap between the upper and lower pinch rolls 3 and 4, the left and right two hydraulic cylinders (12, 13), and the hydraulic cylinders (12, 13) The left and right gap detectors 9 and 10 for measuring the left and right gaps of the upper and lower pinch rolls 3 and 4 by measuring the working stroke of the upper and lower pinch rolls 3 and 4 and the force acting on the hydraulic cylinders 12 and 13. Left and right force detectors 7 and 8, and arithmetic and control unit 11 for collecting the output values of the gap detectors 9 and 10 and the force detectors 7 and 8 during winding to generate signal analysis and results; And a management control computer 14 which receives the engagement determination information from the operation control unit and outputs the engagement warning voice information to the operator.

상기 제어연산장치(11)는 스트립(2) 사이즈(두께, 폭)에 따라 스트립(2)이 핀치롤((3,4)통과 전에 유압실린더(12,13)에 일정한 갭 설정치를 부여하며, 핀치롤(3,4)통과 후에는 유압실린더(12,13)에 일정한 포스 설정치를 부여하여 권취공정이 원활하게 이루어지도록 한다.The control computing device 11 provides a constant gap setting value to the hydraulic cylinders 12, 13 before the strip 2 passes through the pinch rolls (3, 4) according to the size of the strip 2 (thickness, width). After passing through the pinch rolls 3 and 4, a constant force set value is applied to the hydraulic cylinders 12 and 13 so that the winding process is smoothly performed.

도 3은 핀치롤을 통과한 스트립의 선단부가 폴딩 없이 정상적으로 권취되는 경우, 핀치롤 갭 검출기(9,10)의 출력치 및 유압검출기(7,8)의 출력치의 한 예를나타낸 상태도로써, (A)는 상기 운전자측 유압실린더 위치검출기(9)의 값을, (B)는 상기 구동측 유압실린더 위치검출기(10)의 값을, (C)는 상기 운전자측 유압실린더 포스 검출기(7)의 값을, (D)는 상기 구동측 유압실린더 유압검출기(8)의 값을 나타낸 것으로, 종축은 갭 및 포스 값을 나타내며 Y1,Y2 는 각 도면에서 상,하 실선값을 나타낸다. 여기서 단위는 각 그림의 좌측 상단에 표시되어 있으며, 횡축은 시간축을 의미한다3 is a state diagram showing an example of the output value of the pinch roll gap detectors 9 and 10 and the output values of the hydraulic detectors 7 and 8 when the tip portion of the strip passing through the pinch roll is normally wound without folding. A) is a value of the driver side hydraulic cylinder position detector 9, (B) is a value of the drive side hydraulic cylinder position detector 10, (C) is a value of the driver side hydraulic cylinder force detector 7 The value (D) represents the value of the drive-side hydraulic cylinder hydraulic detector 8, the vertical axis represents the gap and force values, and Y1 and Y2 represent the upper and lower solid line values in the respective figures. The unit is shown at the top left of each figure, and the horizontal axis is the time axis.

한편, 도 3의(A)-(D)각 그림에서 ⓐ,ⓑ,ⓒ,ⓓ는 스트립(2)이 핀치롤(3,4)을 통과할 때의 충격에 의하여 갭 및 포스가 급격히 변화하는 시점을 설명하고 있다.On the other hand, in Figure 3 (A)-(D), ⓐ, ⓑ, ⓒ, ⓓ shows that the gap and force change rapidly due to the impact when the strip 2 passes through the pinch rolls 3 and 4. The viewpoint is explained.

도 4는 스트립(2) 선단부가 접물림 상태로 상,하 핀치롤(3,4)을 통과하는 경우에서, 핀치롤 갭 검출기(9,10)의 출력치 및 포스 검출기 (7,8)출력치 일례를 나타낸 것이다.4 shows the output of the pinch roll gap detectors 9 and 10 and the force detectors 7 and 8 in the case where the front end of the strip 2 passes through the upper and lower pinch rolls 3 and 4 in the engaged state. An example of the tooth is shown.

여기에서 (A)는 상기 운전자측 유압실린더 위치검출기(9)의 값을, (B)는 상기 구동측 유압실린더 위치검출기(10)의 값을, (C)는 상기 운전자측 유압실린더 포스 검출기(7)의 값을, (D)는 상기 구동측 유압실린더 포스 검출기(8)값을 나타낸다.Here, (A) is the value of the driver side hydraulic cylinder position detector 9, (B) is the value of the drive side hydraulic cylinder position detector 10, (C) is the driver side hydraulic cylinder force detector ( (D) shows the value of the said drive side hydraulic cylinder force detector 8, and the value of 7).

여기에서 스트립(2)이 핀치롤(3,4)을 통과할 때의 충격에 의하여 갭 및 포스가 급격히 변화하는 폭 ⓐ,ⓑ,ⓒ,ⓓ값은 도 3의 그것에 비교해 볼 때 그 크기가 훨씬 큰 것을 알수 있다Here, the widths ⓐ, ⓑ, ⓒ, and ⓓ values in which the gap and force change rapidly due to the impact when the strip 2 passes through the pinch rolls 3 and 4 are much larger than those of FIG. I can see a big thing

도 5는 상기 연산제어부(11)에서 사상압연기(1)를 통과한 스트립(2)이 상,하 핀치롤(3,4)을 통과하는 일정기간 동안 상기 핀치롤 갭 검출기(9,10)의 출력치와스트립(2)사이즈에 따라 미리 설정된 설정치×1.2의 결과 값과 비교하여 그 상태가 40 ms 이상 지속되는지 여부와, 핀치롤 포스(유압)검출기(7,8)의 출력치와 스트립(2)사이즈에 따라 미리 설정된 설정치×1.5의 결과 값과 비교하여 그 상태가 40 ms 이상 지속되는지 여부를 판단하여 최종적으로 스트립(2)선단부의 접물림 상태를 판정하게 된다.FIG. 5 shows the pinch roll gap detectors 9 and 10 during a predetermined period in which the strip 2 passing through the finishing mill 1 in the operation control unit 11 passes through the upper and lower pinch rolls 3 and 4. Compared with the result value of the preset value x 1.2 according to the output value and the size of the strip (2), whether or not the state lasts 40 ms or more, and the output value and strip of the pinch roll force detectors (7, 8) 2) According to the size, it is determined whether the state lasts 40 ms or more by comparing with the result value of the preset set value x 1.5, and finally the state of engagement of the front end of the strip 2 is determined.

이러한 연산제어부의 스트립 접물림 판단정보는 관리제어컴퓨터(SCC)(14)로 전송된다. 이 관리제어 컴퓨터는 상기 연산제어부에 기준값을 제공하고 이 연산제어부로부터의 접물림 판정 정보를 받아 작업자에게 접물림 경고 음성정보를 출력한다.The strip engagement determination information of the operation control unit is transmitted to the management control computer (SCC) 14. The management control computer provides a reference value to the arithmetic control unit, receives the creep determination information from the arithmetic control unit, and outputs a creep warning voice information to the operator.

이에 따라 작업자는 현재 권취중인 스트립의 선단부에서 접물림이 발생된 것을 인지하고 즉시 적절한 조치를 강구하여 권취불량에 따른 되감기 작업분량을 최소화 시킬 수 있게 된다.Accordingly, the operator recognizes that a crease occurs at the leading end of the strip currently being wound, and immediately takes appropriate measures to minimize the amount of rewinding work due to the winding failure.

이상에서 설명한 바와 같은 본 발명은 사상압연기를 통과한 스트립이 상, 하 핀치롤을 통과할 때, 그 스트립의 선단부가 접물림 상태로 상,하 핀치롤 통과여부를 자동으로 판정하도록 함으로서, 종전 검사자가 권취완료 상태에서 육안으로 고온의 스트립 선단부의 접물림 상태를 검사하는 과정을 생략할 수 있어 작업성이 향상되고 또한 검사 과정에서 발생할수 있는 안전사고를 예방할 수 있는 특유의 효과가 나타나게 된다.As described above, when the strip passing through the finishing mill passes through the upper and lower pinch rolls, the front end portion of the strip is automatically engaged to determine whether the upper and lower pinch rolls pass through the previous inspection. In the self-winding state, it is possible to omit the process of checking the engagement of the hot strip end with the naked eye, which improves workability and prevents a safety accident that may occur during the inspection process.

Claims (1)

상,하부 핀치롤(3,4)의 갭 을 조정하는 액츄에이터인 좌,우 2개의 유압 실린더(12,13)와, 상기 유압실린더(12,13)의 작동 스트로크 측정에 의하여 상,하부 핀치롤(3,4)의 좌, 우 갭을 측정하는 좌,우 갭 검출기(9,10)와, 상기 유압실린더(12,13)에 작동하는 포스를 검출하기 위한 좌,우 포스 검출기(7,8)와, 상기 갭 검출기(9,10) 및 포스 검출기(7,8)의 출력치를 권취중에 수집하여 신호해석과 결과를 생성하는 연산제어부(11)와, 상기 연산제어부로 부터의 접물림 판정 정보를 받아 작업자에게 접물림 경고 음성정보를 출력하는 관리제어컴퓨터(14)를 포함하는 것을 특징으로 하는 열연스트립 선단부 핀치롤 접물림 자동판정 시스템.Left and right two hydraulic cylinders 12 and 13, which are the actuators for adjusting the gap between the upper and lower pinch rolls 3 and 4, and the upper and lower pinch rolls by measuring the operating stroke of the hydraulic cylinders 12 and 13. Left and right gap detectors 9 and 10 for measuring left and right gaps of (3 and 4) and left and right force detectors 7 and 8 for detecting force acting on the hydraulic cylinders 12 and 13. ), An arithmetic control unit 11 which collects the output values of the gap detectors 9 and 10 and the force detectors 7 and 8 during winding, to generate a signal analysis and a result, and the engagement determination information from the arithmetic control unit. Hot rolled strip front end pinch roll fold automatic determination system, characterized in that it comprises a management control computer 14 for outputting the warning warning voice information to the operator.
KR1020000053457A 2000-09-08 2000-09-08 Automatic detecting system of folded strip head part KR20020020343A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106077106A (en) * 2016-06-21 2016-11-09 首钢京唐钢铁联合有限责任公司 A kind of online decision method of hot-strip fold defect
CN107020299A (en) * 2016-01-29 2017-08-08 宝山钢铁股份有限公司 A kind of afterbody lamination identification monitoring method of hot rolling coiler
CN112455841A (en) * 2020-11-26 2021-03-09 中冶赛迪工程技术股份有限公司 Method and device for adjusting position of outer ring belt head of steel coil
CN112455841B (en) * 2020-11-26 2024-05-14 中冶赛迪工程技术股份有限公司 Method and device for adjusting position of outer ring belt head of steel coil

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JPS60106620A (en) * 1983-11-14 1985-06-12 Mitsubishi Electric Corp Controlling device of shape of winding of strip material
JPS60124416A (en) * 1983-12-08 1985-07-03 Kawasaki Steel Corp Tip position deciding method of band-shaped body in case of winding
JPH06269855A (en) * 1993-03-19 1994-09-27 Ishikawajima Harima Heavy Ind Co Ltd Coiler
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KR100384633B1 (en) * 1998-12-09 2003-07-16 주식회사 포스코 Apparatus and method for controlling jumping of wrapper-roll in strip-coil machine

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Publication number Priority date Publication date Assignee Title
JPS60106620A (en) * 1983-11-14 1985-06-12 Mitsubishi Electric Corp Controlling device of shape of winding of strip material
JPS60124416A (en) * 1983-12-08 1985-07-03 Kawasaki Steel Corp Tip position deciding method of band-shaped body in case of winding
JPH06269855A (en) * 1993-03-19 1994-09-27 Ishikawajima Harima Heavy Ind Co Ltd Coiler
JPH09267126A (en) * 1996-03-29 1997-10-14 Kawasaki Steel Corp Pinch roll device
KR100384633B1 (en) * 1998-12-09 2003-07-16 주식회사 포스코 Apparatus and method for controlling jumping of wrapper-roll in strip-coil machine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107020299A (en) * 2016-01-29 2017-08-08 宝山钢铁股份有限公司 A kind of afterbody lamination identification monitoring method of hot rolling coiler
CN107020299B (en) * 2016-01-29 2019-05-28 宝山钢铁股份有限公司 A kind of tail portion lamination identification monitoring method of hot rolling coiler
CN106077106A (en) * 2016-06-21 2016-11-09 首钢京唐钢铁联合有限责任公司 A kind of online decision method of hot-strip fold defect
CN112455841A (en) * 2020-11-26 2021-03-09 中冶赛迪工程技术股份有限公司 Method and device for adjusting position of outer ring belt head of steel coil
CN112455841B (en) * 2020-11-26 2024-05-14 中冶赛迪工程技术股份有限公司 Method and device for adjusting position of outer ring belt head of steel coil

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