KR20040043632A - Apparatus with means for controlling situation of roll gap - Google Patents

Apparatus with means for controlling situation of roll gap Download PDF

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Publication number
KR20040043632A
KR20040043632A KR1020020072005A KR20020072005A KR20040043632A KR 20040043632 A KR20040043632 A KR 20040043632A KR 1020020072005 A KR1020020072005 A KR 1020020072005A KR 20020072005 A KR20020072005 A KR 20020072005A KR 20040043632 A KR20040043632 A KR 20040043632A
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South Korea
Prior art keywords
shaft
encoders
roll gap
roll
welding
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KR1020020072005A
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Korean (ko)
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KR100909688B1 (en
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김광호
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주식회사 포스코
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Priority to KR1020020072005A priority Critical patent/KR100909688B1/en
Publication of KR20040043632A publication Critical patent/KR20040043632A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/58—Roll-force control; Roll-gap control
    • 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
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/04—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing
    • 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

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Metal Rolling (AREA)
  • Metal Rolling (AREA)

Abstract

PURPOSE: A system for controlling detection of roll gap position is provided which greatly improves strip threadability and product quality by preventing strip fracture of welding part of high carbon steel coil. CONSTITUTION: The system for controlling detection of roll gap position comprises a whole base(17) mounted in cover(23) to fix the encoders; a shaft(21) connected to screw jack at one side of the whole base to drive rolls and the encoders; a bearing block(20) inserted onto the outer side of the shaft to smoothly operate the shaft; encoders installed at the other side of the base to control roll gap; a pulley(25) assembled into the shaft to rotate the encoders and the shaft with the encoders and the shaft being connected to each other; and a timing belt(24) installed between the encoders and the shaft so that the timing belt rotationally connects the encoders to the shaft.

Description

롤 갭 위치검출 제어장치{APPARATUS WITH MEANS FOR CONTROLLING SITUATION OF ROLL GAP}Roll gap position detection controller {APPARATUS WITH MEANS FOR CONTROLLING SITUATION OF ROLL GAP}

본 발명은 롤 갭 위치검출 제어장치에 관한 것으로써, 보다 상세하게는 연속적으로 작업을 하기위해 두 코일 이상 용접연결하여 연속 통판하는 설비에 있어 전후 코일의 용접부를 용접부 검출센서로 검출하여 코일 두께에 따라 인터메쉬롤을 제어하여 통판을 양호하게 제어하는데, 특히 냉간압연 설비 또는 산세라인 등에서 연속통판 작업시 용접부의 통판제어에 이용되는 롤 갭 위치검출 제어장치에 관한 것이다.The present invention relates to a roll gap position detection control device, and more particularly, in a facility in which two or more coils are connected by welding in order to continuously work, the welding part of the front and rear coils is detected by the welding part detection sensor to determine the coil thickness. According to the present invention, an intermeshing roll is controlled to provide good control of a sheet plate, and more particularly, a roll gap position detection control apparatus used for controlling a sheet plate of a welded part in a continuous sheet plate operation in a cold rolling facility or a pickling line.

그런데, 종래에는 용접기에서 선행재와 후행재 코일 용접완료후 용접완료 신호에 의해 코일 추적이 되어 코일이 텐션 브라이들 롤을 통과할때 스케일 브레이커의 상,하 롤이 자동적으로 제어되도록 프로그램이 구성되어 추적 에러 발생시나 엔코더 카운터 에러 발생등으로 센터 존 스피드 제어 및 연속 제어가 되지 않은 상태로 코일 용접부가 스케일 브레이커를 통과할때 경이 작은 굴곡 변형으로 판파단 과 롤 마크가 발생하여 제품의 품질에 상당한 문제점이 발생하였다.By the way, in the prior art, after the welding of the leading and trailing material coils in the welding machine, the coil is traced by the welding completion signal, and the program is configured to automatically control the upper and lower rolls of the scale breaker when the coil passes through the tension bridle roll. When the coil weld passes through the scale breaker in the state of tracking error or encoder counter error, the center zone speed control and continuous control are not performed. This occurred.

상기와 같은 문제점을 해결하기 위해서, 본 발명은 열연 코일을 연속적으로 작업을 하기 위해 선행재와 후행재 코일을 용접하고 통판시 용접부가 용접부검출센서의 검출 신호에 의해 스케일 브레이커의 상부 워크롤과 하부 인터메쉬롤과 안티크로스롤의 엔코더 위치 제어에 의해 자동으로 동작함과 동시에 센터 존 스피드를 저속으로 감속 제어하므로 특히 고탄소강 코일의 용접부 판파단을 방지하여 통판성 과 제품의 품질을 크게 향상시키기 위한 롤 갭 위치검출 제어장치를 제공하는데 그목적이 있다.In order to solve the problems as described above, the present invention welds the preceding material and the following material coil in order to continuously work the hot rolled coil, and the welding part is the upper work roll and the bottom of the scale breaker by the detection signal of the weld detection sensor It is operated automatically by encoder position control of intermesh roll and anticross roll and decelerating center zone speed at low speed. Especially, it is possible to prevent the breakage of welded part of high carbon steel coil to greatly improve the flow rate and product quality. The purpose is to provide a roll gap position detection control device.

도 1은 본 발명에 따른 롤 갭 위치검출 제어장치의 전체 설비를 도시한 사시도;1 is a perspective view showing the entire installation of the roll gap position detection control apparatus according to the present invention;

도 2는 본 발명에 따른 롤 갭 위치검출 제어장치의 설비 제어 블럭을 도시한 개념도;2 is a conceptual diagram showing a facility control block of the roll gap position detection control apparatus according to the present invention;

도 3은 본 발명에 따른 롤 갭 위치검출 제어장치의 구성을 분해 도시한 사시도이다.3 is an exploded perspective view showing the configuration of the roll gap position detection control apparatus according to the present invention.

♠도면의 주요부분에 대한 부호의 설명 ♠♠ Explanation of the symbols for the main parts of the drawings ♠

2:용접부 검출센서 6,7,8:인터메쉬롤2: weld detection sensor 6, 7, 8, inter mesh roll

11,12,13,22:엔코더 15:스트립11, 12, 13, 22: Encoder 15: Strip

17:전체베이스 18:엔코더 베이스17: whole base 18: encoder base

20:베어링 블럭 21:샤프트20: bearing block 21: shaft

23:커버 24:타이밍 벨트23: Cover 24: Timing belt

25:풀리 26:베어링25: Pulley 26: Bearing

상기한 목적을 달성하기 위해서, 본 발명은 커버 안에 장착되어 엔코더를 고정시키는 전체베이스와, 상기 전체베이스의 일측에 롤과 엔코더를 구동 시키기 위해 스크류 잭에 연결된 샤프트와, 상기 샤프트의 외측에 상기 샤프트의 원활한 작동을 위해 삽입된 베어링 블록과, 상기 베이스의 타측에 롤 갭을 제어하도록 설치된 엔코더와, 상기 엔코더와 상기 샤프트를 연결하여 회전할 수 있도록 샤프트에 조립된 풀리와, 상기 엔코더와 상기 샤프트의 사이에는 이를 연결하여 회전되도록 하는 타이밍 벨트로 구성된 것을 특징으로 하는 롤 갭 위치검출 제어장치를 제공한다.In order to achieve the above object, the present invention is a whole base mounted in the cover to secure the encoder, a shaft connected to the screw jack for driving the roll and the encoder on one side of the base, and the shaft outside of the shaft A bearing block inserted for smooth operation of the encoder, an encoder installed at the other side of the base to control a roll gap, a pulley assembled to the shaft so as to rotate by connecting the encoder and the shaft, and the encoder and the shaft It provides a roll gap position detection control device, characterized in that consisting of a timing belt for connecting and rotating between them.

이하, 첨부된 도면을 참조하여 본 발명의 구성을 상세하게 설명한다.Hereinafter, with reference to the accompanying drawings will be described in detail the configuration of the present invention.

도 1과 도 2에 도시된 바와 같이, 열연 코일(15)을 연속통판하기 위해 선행재와 후행재 열연 코일을 용접 연결하여 통판시 용접기로 용접할 때 후행재 코일(15)에 구멍을 내는 유압 실린더 펀쳐(1)를 용접기 입측의 상부에 설치한다.As shown in Figure 1 and 2, in order to continuously weld the hot rolled coil 15, by welding the preceding material and the trailing material hot rolled coil to weld the welder at the time of mailing, the hydraulic pressure that makes a hole in the trailing material coil 15 The cylinder puncher 1 is installed on the upper side of the welder inlet side.

상기 용접완료후 용접성검사 위치에서 후행재 코일에 용접부를 펀칭하여 용접부홀(16)을 만들고, 용접부를 검출하는 광전식 센서인 용접부 검출센서(2)를 입측에서 일정하게 떨어진 후단에 설치하여 제어하도록 구비한다.After the welding is completed, the welding part is punched in the trailing material coil at the weldability inspection position, and the welding part detection sensor 2, which is a photoelectric sensor that detects the welding part, is installed at a rear end that is constantly separated from the mouth to control the welding part. Equipped.

또한, 인터 메쉬롤(6,7,8)의 하부에 스케일 브레이커 롤 위치의 검출제어 및 통판성 향상을 위해 엔코더(11,12,13)장치를 설치하고, 텐션 브라이들 롤의 일측에 용접부 통판거리를 연산하는 피엘지(14) 카운터를 설치하여, 용접부를 검출하는 용접부 검출센서(2)에 의해 용접 홀(16)을 검출하는 시점부터 연산을 개시 스케일 브레이커를 통과하는 시점까지 스트립(15)의 위치를 연산되도록 한다.In addition, an encoder (11, 12, 13) device is installed in the lower part of the inter mesh roll (6, 7, and 8) for detecting the control of the scale breaker roll position and improving the mail flow. The strip 15 is provided with a counter 14 for calculating the distance, and from the time when the welding hole 16 is detected by the welding detection sensor 2 which detects the welding part to the time when the calculation passes through the starting scale breaker. To calculate the position of.

한편, 상기 스케일 브레이커(30)의 통과시 상기 인터메쉬롤(6,7,8) 갭이 설정된 값까지 제어가 되도록 용접 홀(16) 검출센서신호에 의해 유압 실린더롤(9,10) 동작등을 통판 스트립(15)의 통판으로 용접 홀(16) 위치검출로 자동 제어하는 시스템과 상기 용접 홀(16)이 스케일 브레이커(30) 위치 통과시 롤의 갭 제어를 해주는 엔코더(11,12,13)와 스케일 브레이커 롤 통과할 때 라인 통판속도를 감속제어하고 카운터 값을 PLC에 입력하여 제어할 수 있는 PLC 장치로 구성한다.Meanwhile, when the scale breaker 30 passes, the hydraulic cylinder rolls 9 and 10 are operated by the welding hole 16 detection sensor signal so that the gap between the intermesh rolls 6, 7 and 8 is controlled to a set value. System for automatically controlling the position of the welding hole 16 by the plate of the plate strip 15 and the encoders 11, 12, 13 for controlling the gap of the roll when the welding hole 16 passes the position of the scale breaker 30. ) And PLC scale that can control the speed of the line through the scale when passing through the scale breaker roll and input the counter value to PLC.

도 3에 도시된 바와 같이, 본 발명에 따른 롤 갭 위치검출 제어장치는 전체 베이스(17)가 구비되고, 상기 베이스(17)의 일측에 롤과 엔코더(11,12,13)를 구동 시키기 위해 스크류 잭에 샤프트(21)가 연결되도록 구비된다.As shown in Figure 3, the roll gap position detection control apparatus according to the present invention is provided with a whole base 17, in order to drive the roll and encoder (11, 12, 13) on one side of the base (17) It is provided so that the shaft 21 is connected to the screw jack.

상기 샤프트(21)의 내측에 상기 샤프트(21)의 원활한 작동을 위해 베어링 블록(20)이 삽입되고, 상기 베이스(17)의 타측에 롤 갭을 검출제어할 수 있는 엔코더(11,12,13)가 구비된다.Encoder (11, 12, 13) for inserting the bearing block 20 for smooth operation of the shaft 21 inside the shaft 21, and detecting the roll gap on the other side of the base 17 ) Is provided.

또한, 상기 엔코더(11,12,13)의 전단부에 상기 엔코더(11,12,13)를 지지 해주는 엔코더 베이스(18)가 구비된다.In addition, an encoder base 18 for supporting the encoders 11, 12, 13 is provided at a front end of the encoders 11, 12, 13.

한편, 상기 엔코더(11,12,13)와 상기 샤프트(21)를 연결하여 회전할 수 있도록 샤프트(21)에 풀리(25)가 조립되도록 구비되고, 상기 엔코더(11,12,13)와 상기 샤프트(21)의 사이에는 이를 연결하여 회전되도록 하는 타이밍 벨트(24)와 벨트 조정용 슬라이드(19)가 구비된다.On the other hand, the pulley 25 is assembled to the shaft 21 so that the encoder (11, 12, 13) and the shaft 21 can be rotated, the encoder (11, 12, 13) and the Between the shaft 21 is provided with a timing belt 24 and a belt adjusting slide 19 to connect and rotate it.

그리고, 상기 타이밍 벨트(24)가 끼워진 롤 구동시 상기 엔코더(11,12,13)가 회전하여 회전시 발생하는 카운터로써 롤 갭 위치 제어를 하고 이 엔코더(11,12,13)값을 PLC로 전송하여 PLC에서 프로그램화된 롤 갭 값을 나타낸다.Then, the roll gap position control is performed as a counter generated when the encoders 11, 12, 13 rotate and rotate when the roll driving with the timing belt 24 is inserted, and the encoder 11, 12, 13 values are transferred to the PLC. The roll gap value programmed by the PLC is transmitted.

이하, 본 발명의 작용에 관하여 상세하게 설명한다.Hereinafter, the operation of the present invention will be described in detail.

도 1내지 도 3에 도시된 바와 같이, 용접기 위치에서 선행재와 후행재 코일을 연속작업 하기 위해 용접 작업시 용접부위치를 표시하기 위해 유압 펀쳐(1)로써 용접 후 하강작동하여 통판코일(15)에 펀칭하여 용접홀(16)를 만든다.As shown in Figures 1 to 3, in order to continuously weld the preceding material and the following material coil in the welder position, the welding coil is lowered after welding with a hydraulic puncher 1 to indicate the position of the welded portion during welding operation, the sheet coil 15 Punch in to make a welding hole (16).

그 완료 신호로 통판을 개시 용접홀(16)을 엔트리 후퍼 후단의 용접부 검출센서(2)에 의해 용접 홀(16)이 검출되면 센터 존 스피드는 통판 스피드에서 일정속도로 감속됨과 동시에 스케일 브레이크 롤의 연속제어가 실행되어 용접부가 텐션 브라이들 롤 통과시 정상 속도로 작업을 하게 된다.When the welding hole 16 is detected by the weld detection sensor 2 at the rear end of the entry hopper, the center zone speed is decelerated from the plate speed to a constant speed and the scale brake roll is started. Continuous control is executed so that the welded part will work at normal speed when passing through the tension bridle roll.

이 연속 제어를 설명하면 스케일 브레이커(30)의 상부롤(9,10)과 하부 롤(6,7,8)이 제어 동작을 실행하는데 스크류 잭에 연결된 샤프트(21)와 엔코더(11,12,13)에 조립된 풀리(25)에 타이밍벨트(24)를 연결하여 롤 구동시 엔코더(11,12,13)로써 롤의 위치제어를 제어한다.This continuous control is described by the upper rolls 9, 10 and the lower rolls 6, 7, 8 of the scale breaker 30 carrying out a control operation. The shaft 21 and the encoders 11, 12, The timing belt 24 is connected to the pulley 25 assembled in 13 to control the position control of the roll with the encoders 11, 12 and 13 during roll driving.

이 엔코더(11,12,13) 장치에 대한 작용에 대해서 설명하면, 용접부 검출센서(2) 검출신호에 의해 먼저 상부 롤(9,10)이 상승 되면서 하부 롤(6,7) 및 안티 크로스 보우롤(8)이 인터메쉬 모터에 의해 설정된 엔코더(11,12,13)의 카운터 값에 의해 하강되어 정지 된 후 코일이 브라이들 롤(5)을 통과한 시점에서 상부 롤(9.10)이 하강된다.The operation of the encoders 11, 12, and 13 will be described. The upper rolls 9 and 10 are first raised by the detection signal of the welding part sensor 2 and the lower rolls 6 and 7 and the anti-cross bow. The upper roll 9.10 is lowered when the coil passes through the bridle roll 5 after the roll 8 is lowered and stopped by the counter values of the encoders 11, 12, 13 set by the intermesh motor. .

또한, 인터매시롤(6,7)과 안티 크로스 보우롤(8)이 상승하여 상기 인터 매시롤(6,7)과 상기 안티 크로스 보우롤(8)이 PCS에서 지시된 설정값 만큼 엔코더(11,12,13)가 카운터를 하여 설정량 위치까지 상승하여 연속제어 동작을 완료함과 동시에 센터 존 스피드는 라인 설정 스피드까지 상승되어 정상 통판 되며 후행 재 코일의 용접 부위를 용접부 검출 센서(2)로 검출할 때 전과 동일한 자동제어 동작을 연속적으로 행하게 된다.In addition, the intermeshing rolls 6 and 7 and the anti-cross bowroll 8 are raised so that the intermeshing rolls 6 and 7 and the anti-cross bowroll 8 are set by the PCS by the set value indicated by the PCS. And 12 and 13 counter to the set amount position to complete the continuous control operation, and at the same time, the center zone speed is increased to the line set speed and normal mailing, and the weld zone of the trailing ash coil is transferred to the weld detection sensor 2. When detecting, the same automatic control operation as before is performed continuously.

상술한 바와 같이, 본 발명은 열연 코일을 연속통판하기 위해 선행재와 후행재 코일을 용접연결하여 통판시 용접부가 스케일 브레이커 위치를 통과할 때에 스케일 브레이커의 인터메쉬롤과 안티 크로스 보우롤의 자동위치를 제어하기 위한 엔코더 장치를 개선시킴으로써 통판속도 제어를 양호하게 함은 물론 특히 고탄강 코일의 용접부 판파단을 방지하여 통판성을 크게 향상시키는데 상당한 효과가 있다.As described above, the present invention is the automatic position of the intermeshing roll and the anti-crossbow roll of the scale breaker when the welding part passes through the scale breaker position by welding the preceding material and the following material coil to weld the hot rolled coil continuously. By improving the encoder device for controlling the, it is possible to improve the plate speed control as well as to prevent the breakage of the welded part of the high-carbon steel coil in particular, thereby greatly improving the plate performance.

Claims (1)

커버(23) 안에 장착되어 엔코더를 고정시키는 전체베이스(17)와, 상기 전체베이스(17)의 일측에 롤과 엔코더(11,12,13)를 구동 시키기 위해 스크류 잭에 연결된 샤프트(21)와, 상기 샤프트(21)의 외측에 상기 샤프트(21)의 원활한 작동을 위해 삽입된 베어링 블록(20)과, 상기 베이스(17)의 타측에 롤 갭을 제어하도록 설치된 엔코더(11,12,13)와, 상기 엔코더(11,12,13)와 상기 샤프트(21)를 연결하여 회전할 수 있도록 샤프트(21)에 조립된 풀리(25)와, 상기 엔코더(11,12,13)와 상기 샤프트(21)의 사이에는 이를 연결하여 회전되도록 하는 타이밍 벨트(24)로 구성된 것을 특징으로 하는 롤 갭 위치검출 제어장치.A whole base 17 mounted in the cover 23 to fix the encoder, and a shaft 21 connected to a screw jack to drive the rolls and the encoders 11, 12, 13 to one side of the whole base 17; A bearing block 20 inserted outside the shaft 21 for smooth operation of the shaft 21 and encoders 11, 12, 13 installed to control the roll gap on the other side of the base 17. And a pulley 25 assembled to the shaft 21 so as to rotate by connecting the encoders 11, 12, 13 and the shaft 21, and the encoders 11, 12, 13 and the shaft ( Roll gap position detection control device, characterized in that consisting of a timing belt (24) for connecting and rotating between them.
KR1020020072005A 2002-11-19 2002-11-19 Roll gap position detection control device KR100909688B1 (en)

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CN106216410A (en) * 2016-09-07 2016-12-14 北京京诚之星科技开发有限公司 Skew rolling feed angle adjusting device

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KR100434880B1 (en) * 1999-08-26 2004-06-07 주식회사 포스코 Method and apparatus for controlling open and shut of scalebreaker roll
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106216410A (en) * 2016-09-07 2016-12-14 北京京诚之星科技开发有限公司 Skew rolling feed angle adjusting device

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