KR950014304B1 - Auto passing devices for production line of zinc coating plate - Google Patents

Auto passing devices for production line of zinc coating plate Download PDF

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KR950014304B1
KR950014304B1 KR1019940012451A KR19940012451A KR950014304B1 KR 950014304 B1 KR950014304 B1 KR 950014304B1 KR 1019940012451 A KR1019940012451 A KR 1019940012451A KR 19940012451 A KR19940012451 A KR 19940012451A KR 950014304 B1 KR950014304 B1 KR 950014304B1
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South Korea
Prior art keywords
pulse
sensor
roll
production line
packs
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KR1019940012451A
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Korean (ko)
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주교하
정의홍
이시엽
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포항종합제철주식회사
김만제
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Priority claimed from KR1019930028450A external-priority patent/KR950023099A/en
Application filed by 포항종합제철주식회사, 김만제 filed Critical 포항종합제철주식회사
Priority to KR1019940012451A priority Critical patent/KR950014304B1/en
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Publication of KR950014304B1 publication Critical patent/KR950014304B1/en

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Abstract

The apparatus for preventing the scrap loss generated in the welding site and improving the productivity by the unmanned automated process, has a tracking sensor for detecting the welded section and a pulse sensor for detecting the rotation of the deflector roll. The apparatus comprises the tracking sensor(7) having a photo projector(7a), a photo receiver(7b) between the bridle roll(1) and the temper mill(2); four pulse packs(A, B, C, D) attached on the four corners of the deflector roll(20); bracket(9) for supporting the deflector roll; pulse sensor(8) being opposite to the pulse packs. The pulse sensor receives the signal emitted from the pulse packs(A, B, C, D) and controls the operation of the deflector rolls.

Description

아연도금강판 생산라인의 용접구 자동 통과장치Automatic Pass-through Device for Welding of Galvanized Steel Sheet Production Line

제1도는 아연도금강판 생산라인의 공정도.1 is a process chart of the galvanized steel sheet production line.

제2도는 종래의 조질압연기의 공정도.2 is a process diagram of a conventional temper rolling mill.

제3도는 본 반명의 조질압연기의 공정도.3 is a process chart of the rough rolling mill of the present company.

제4도는 본 반명의 센서부를 나타낸 것으로,Figure 4 shows the sensor of the present half,

(a)도는 센서부의 측면도.(a) is a side view of a sensor part.

(b)도는 센서부의 정면도.(b) is a front view of a sensor part.

제5도는 본 발명이 적용된 연속제어 루프도.5 is a continuous control loop diagram to which the present invention is applied.

* 도면의 주요 부분에 대한 부호의 설명* Explanation of symbols for the main parts of the drawings

1,1a : 입측브리들롤(Bridle Roll) 2,2a : 템퍼일(Temper Mill)1,1a: Bridle Roll 2,2a: Temper Mill

3,3a,4,4a,5,5a : 수평롤 6,6a : 출측브리들롤(Bridle Roll)3,3a, 4,4a, 5,5a: horizontal roll 6,6a: bridle roll

7 : 트랙킹센서(Tracking Sensor) 8 : 펄스센서(Pulse Sensor)7: Tracking Sensor 8: Pulse Sensor

9 : 브래킷 A, B, C,D : 펄스팩(Pulse Pack)9: Brackets A, B, C, D: Pulse Pack

20 : 디플렉터롤20: deflector roll

본 발명은 아연도금강판 생산라인의 용접부 통과장치에 관한 것으로, 특히 용접부를 감지하는 트랙킹센서와 디플렉터롤의 회전을 감지하는 펄스센서에 의하여 용접부의 통과길이를 산출함과 아울러 용접부에서 발생하는 스크랩로스의 발생을 방지하며 무인운전에 의한 성역화 및 작업성 향상을 기하고자 하는데 목적이 있는 것이다.The present invention relates to a welding part passing device of a galvanized steel sheet production line, and in particular, to calculate the passing length of the welding part by the tracking sensor for detecting the welding part and the pulse sensor for detecting the rotation of the deflector roll, scrap loss generated in the welding part. The purpose is to prevent the occurrence of and to improve the sanctuary and workability by unmanned operation.

냉연코일을 소재로 하는 아연도금강판 생산라인의 공정은 제1도에서 도시된 바와같이 폐이오프릴(31)에 감겨진 코일형태의 냉연강판(S)은 용접기(32)와 입측루퍼(33)를 거쳐 열처리로(34)에서 열처리된 후 아연도금되는 도금조(35)를 거쳐 공기냉각장치(36) 및 수냉각장치(37)에서 냉각한 다음 조질압연기(38)로 들어가 형상교정 및 내부응력을 제거하게 되고 크롬처리설비(39)에서는 내식성 향상을 위하여 화학처리를 한다.In the process of producing a galvanized steel sheet production line made of cold rolled coil, as shown in FIG. 1, the cold rolled steel sheet S wound around the waste reel 31 is welder 32 and side looper 33. After the heat treatment in the heat treatment furnace (34) through the galvanized plating bath 35 through the air cooling device (36) and the water cooling device (37) and then cooled to the temper rolling mill (38) to correct the shape and internal stress The chromium treatment facility 39 is chemically treated to improve corrosion resistance.

이와같은 공정을 마친 냉연강판(S)은 건조기(40)에서 건조된 후 출측루퍼(41)를 지나 텐셜릴(42)에 코일형태로 감기거나 파일러(43)에 낱개로 보관함으로서 작업이 완료되게 되는 것이다.After the cold rolled steel sheet (S) is completed in this process is dried in the dryer (40) and passed through the exit looper (41) to coil the coil to the tension reel (42) or stored separately in the filer (43) to complete the work Will be.

또한 상기 조질압연기(38)에서는 입측브리들롤(la)과 출측브리들롤(6a)의 속도차에 의하여 연실율이 부여되고 통과되는 소재두께에 따라 극소량의 두께가 조정되며 템퍼밀(2a) 및 레벨러(30,30',40,50)의 사용에 의해 내부응력 및 형상이 교정되게 되는데 종래의 방법은 운전자의 수동동작에 의해 용접부를 통과시켜야하고 또한 용접부를 작업자의 육안으로 일일이 확인해야 하므로 단순반복 업무를 계속해야 하는 번거로움이 지적되고 있음은 물론 운전자 및 작업되는 소재에 따라 용접부의 통과길이가 달라지는 문제점이 발생하였다.In addition, in the temper mill 38, a yarn rate is given by the speed difference between the entrance bridle roll la and the exit bridle roll 6a, and a very small amount of thickness is adjusted according to the thickness of the material to be passed, and the temper mill 2a. And the internal stress and the shape is corrected by the use of the levelers 30, 30 ', 40, 50. In the conventional method, the weld must be passed by the manual operation of the driver, and the weld must be checked by the naked eye. It has been pointed out that the need to continue the simple repetitive work, as well as the problem that the passing length of the weld varies depending on the operator and the material being worked.

상기와 같은 문제점 외에는 운전자의 부주의로 용접부를 육안으로 확인하지 못하고 지나쳤을 때에는 판파단이 발생하여 작업능률을 저하시킴은 물론 그에 따른 생산성 저하의 주원인이 되었다.Except for the above problems, when the welds cannot be visually inspected due to the carelessness of the driver, plate breakage occurs and the work efficiency is reduced, and thus the main cause of productivity decrease.

본 발명은 상기와 같은 문제점을 해결하기 위하여 발명한 것으로, 용접부의 펀치홀을 감지하는 투광기 및수광기가 구비된 트랙킹센서를 형성시켰으며 용접부의 통과길이를 계산할 수 있는 펄스팩 및 펄스센서를 각각 부착형성시킨 디플렉터롤과 브래킷을 구비하여서 된 본 발명을 첨부된 도면에 의거하여 상세히 설명하면 다음과 같다.The present invention has been invented to solve the above problems, and formed a tracking sensor equipped with a light emitter and a light receiver for detecting the punch hole of the weld portion, and a pulse pack and a pulse sensor that can calculate the pass length of the weld portion are respectively attached. When described in detail with reference to the accompanying drawings, the present invention having a deflector roll and a bracket formed as follows.

입측브리들롤(1)과 템퍼밀(2) 사이에 투광기(7a) 및 수광기(7b)를 갖는 트랙킹센서(7)를 설치하고, 디플렉터롤(20)의 열측면 상·하·좌·우 4방에는 등간격으로 4개의 펄스팩(A,B,C,D)을 부착형성시키는 한편 디플렉터(20)를 지지하는 브래킷(9) 상부에는 펄스센서(8)를 부착하여 펄스팩(A,B,C,D)과 펄스센서(8)가 상호 대향하도록 형성시켜 디플렉터롤(20)의 회동에 따라 펄스팩(A,B,C,D)들이 회전하면서 펄스팩(KA,B,C,D)에서 보내는 신호를 펄스센서(8)가 감지하여 롤의 이동 및 작동을 자동으로 이루어지도록 한 것이다.A tracking sensor 7 having a light emitter 7a and a light receiver 7b is provided between the entrance bridle roll 1 and the temper mill 2, and the top, bottom, left, and right sides of the deflector roll 20 are arranged. On the right side, four pulse packs (A, B, C, D) are attached and formed at equal intervals, while a pulse sensor (8) is attached to the upper part of the bracket (9) for supporting the deflector (20). , B, C, D and the pulse sensor 8 are formed to face each other, the pulse pack (A, B, C, D) is rotated in accordance with the rotation of the deflector roll 20, the pulse pack (KA, B, C) The pulse sensor (8) detects the signal transmitted from, D) to automatically move and operate the roll.

이와같이 구성된 본 발명의 작용 및 효과를 상세히 설명하면 다음과 같다.Referring to the operation and effect of the present invention configured as described above in detail.

본 발명의 트레킹센서(7)는 이송되는 냉연강판(S)의 상방에 설치된 투광기(7a)와 그 하방의 수광기(7b)로 구성되어 용접부를 감지하는데 상기 용접부를 표시하는 펀치홀(도시되지 않음)은 전공정에서 발생되는표시흘 또는 용접기(32)을 통과하면서 냉연강판(S)의 표면에 형성되는 약 25mm(지륨)의 관통홀이어서, 상기 용접부의 펀치홀이 트렉킹센서(7)를 통과하면 투광기(7a)에서 투사되는 빛을 수광기(7b)에서 감지하게되며, 이와같이 수광기(7b)에서 빛이 감지되면 상·하부 템퍼밀(2)에서 압축되는 냉연강판(S)의 저면에 착설된 하부 렘퍼밀(2)에 압출하는 냉연강판(S)의 전면에 착설된 하부 템퍼밀(2)을 아래로 이동시키는 한편, 입출측브리들롤(1,6)을 동속회전시킴으로서 냉연강판(S)의 신장이 정지되어 무장력상태에서 용접부가 이송된다.The trekking sensor 7 of the present invention is composed of a light emitter 7a installed above the cold rolled steel sheet S to be transferred and a light receiver 7b below the punched hole to detect the welded portion (not shown). (Not shown) is a through hole of about 25 mm (zircium) formed on the surface of the cold rolled steel sheet S while passing through the display line generated in the previous process or the welding machine 32, so that the punch hole of the weld portion is used to When passing through, the light projected by the light receiver 7a is detected by the light receiver 7b. As such, when light is detected by the light receiver 7b, the bottom surface of the cold rolled steel sheet S compressed by the upper and lower temper mills 2 is detected. Cold rolling by moving the lower temper mill (2) installed on the front of the cold rolled steel sheet (S) to be extruded to the lower remper mill (2) installed on the down side, while rotating the entry and exit bridle roll (1,6) at the same speed The extension of the steel sheet S is stopped and the welded portion is conveyed in the tensionless state.

또한 상기 하부 렘퍼밀(2)은 하향이동됨과 동시에 디플렉터롤(20)의 브래킷(9)에 고착된 펄스센서(8)가 펄스팩(A,B,C,D)들을 감지함으로 용접부가 출측브리들롤(6)에 도달하는 거리를 산출할 수 있으므로 상기용접부가 출측브리들롤(6)을 벗어나는 시점에 맞추어 템퍼밀(2)을 원래 위치로 복귀시킴과 동시에 입·출측브리들롤(l,6)의 회전속도차에 의하여 냉연강판(S)은 신장가능하다.In addition, the lower remper mill (2) is moved downwards and at the same time the pulse sensor (8) fixed to the bracket (9) of the deflector roll 20 detects the pulse pack (A, B, C, D), the welding part Since the distance to reach the rolls 6 can be calculated, the temper mill 2 is returned to its original position at the time when the welding portion leaves the exiting briddle 6, and at the same time, Cold rolled steel sheet (S) is extensible by the rotation speed difference of (6).

일예로 상기 펄스펙(A,B,C,D)들이 등간격으로 메열되어 회전되는 상태에서 펄스센서(8)가 3개의 펄스팩(B,C,D)을 감지할 경우 용접부는 템퍼밀(2)에서 3L만큼 이숭되므로 입·출측보리들롤(1,6) 사이의 거리와대응하는 만큼 디플렉터롤(20)이 회전된 후에는 상기 입·출측브리들롤(1,6)의 회전속도를 조정하여 냉연강판(S)이 신장되게 항과 동시에 하부 템퍼밀(2)을 상향 이동시켜 상기 냉연강판(S)이 고장력하에서 압출되도록 한다.For example, when the pulse sensor 8 detects three pulse packs B, C, and D in a state in which the pulse defects A, B, C, and D are rotated at equal intervals, the welding part is a temper mill ( 2) is rotated by 3L, so that after the deflector roll 20 is rotated as much as the distance between the entry and exit barley rolls 1 and 6, the rotational speed of the entrance and exit briddle rolls 1 and 6 By adjusting the cold rolled steel sheet (S) to extend and at the same time move the lower temper mill (2) so that the cold rolled steel sheet (S) is extruded under high tension.

제5도는 본 고안을 구성하는 각부의 연속제어 루프도로서, 트랙킹센서(7)에서 용접부가 감지되면 템퍼밀(2), 입·축측보리들롤(1,6), 펄스센서(8) 등이 순차적으로 제어됨을 알 수 있다.5 is a continuous control loop diagram of each part constituting the present invention. When the welding part is detected by the tracking sensor 7, the temper mill 2, the mouth / axial barley rolls 1 and 6, the pulse sensor 8, and the like. It can be seen that this is controlled sequentially.

이상과 같이 본 고안은 용접부에서 발생되는 스크랩로스의 발생을 방지할 수 있올 뿐만 아니라 작업공정을 무인화함으로써 라인가동율을 향상시킴은 물론 전체적인 생산성을 극대화시킬 수 있는 효과가 있다.As described above, the present invention not only prevents the occurrence of scrap loss generated in the welding part, but also improves the line operation rate by unmanning the work process, and has the effect of maximizing the overall productivity.

Claims (1)

입측브리들롤(1)과 템퍼밀(2) 사이에 투광기(7a) 및 수광기(7b)를 갖는 트랙킹센서(7)를 설치하고, 디플렉터롤(20)의 일측면 상·하·좌· 4방에는 등간격으로 4개의 펄스팩(A,B,C,D)을 부착형성시키는 한편 디플렉터(20)를 지지하는 브레킷(9) 상부에는 펄스센서(8)을 부축하여 펄스팩(A,B,C,D)과 펄스센서(8)가 상호 대향하도록 형성시켜 디플렉터롤(20)의 회동에 따라 펄스팩(A,B,C,D)들이 회전하면서 펄스팩(A,B,C,D)에서 보내는 신호를 펄스센서(A,B,C,D)가 감지하여 롤의 이동 및 작동을 자동으로 이루어지도록한 것을 특징으로 하는 아연도금 강판 생산라인의 용접부 자동 통과장치.A tracking sensor 7 having a light emitter 7a and a light receiver 7b is provided between the entrance bridle roll 1 and the temper mill 2, and the top, bottom, left and right sides of the deflector roll 20 are provided. Four pulse packs (A, B, C, D) are attached to the four chambers at equal intervals, while the pulse sensor (8) is supported on the bracket (9) that supports the deflector (20). The pulse packs A, B, C and D rotate as the deflector roll 20 rotates so that the B, C, D and the pulse sensors 8 face each other. , D) automatic detection device of the galvanized steel sheet production line, characterized in that the pulse sensor (A, B, C, D) detects the signal sent from the D to automatically perform the movement and operation of the roll.
KR1019940012451A 1993-12-18 1994-06-02 Auto passing devices for production line of zinc coating plate KR950014304B1 (en)

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KR1019940012451A KR950014304B1 (en) 1993-12-18 1994-06-02 Auto passing devices for production line of zinc coating plate

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KR1019930028450A KR950023099A (en) 1993-12-18 1993-12-18 Interrupt controller request register device and its control method
KR1019940012451A KR950014304B1 (en) 1993-12-18 1994-06-02 Auto passing devices for production line of zinc coating plate

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