KR200153852Y1 - Apparatus exclusion roll mark of cold sheet - Google Patents
Apparatus exclusion roll mark of cold sheet Download PDFInfo
- Publication number
- KR200153852Y1 KR200153852Y1 KR2019950036480U KR19950036480U KR200153852Y1 KR 200153852 Y1 KR200153852 Y1 KR 200153852Y1 KR 2019950036480 U KR2019950036480 U KR 2019950036480U KR 19950036480 U KR19950036480 U KR 19950036480U KR 200153852 Y1 KR200153852 Y1 KR 200153852Y1
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- South Korea
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- rolled steel
- cold rolled
- steel sheet
- electromagnet
- roll
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Classifications
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- 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
- B21B45/02—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 lubricating, cooling, or cleaning
- B21B45/0269—Cleaning
- B21B45/0275—Cleaning devices
- B21B45/0287—Cleaning devices removing solid particles, e.g. dust, rust
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
- B21B2001/221—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length by cold-rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
- B21B2001/228—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length skin pass rolling or temper rolling
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Abstract
본 고안은 냉연강판의 최종 압연설비인 조질압연설비(T.SPM)에서 냉연강판에 형성되는 롤 마크(Roll Mark)를 제거하는 장치에 관한 것으로, 보다 상세히는 냉연강판상에 잔류되어 조질압연설비에서 냉연강판과 동시에 압연되는 각종 철편, 철분 및 금속이물질등을 제거시킴으로써 냉연강판의 품질을 향상시킬 수 있도록 개선된 냉연강판의 롤 마크(Roll Mark)제거장치에 관한 것이다.The present invention relates to an apparatus for removing a roll mark formed on a cold rolled steel sheet in a T.SPM, which is a final rolling facility of a cold rolled steel sheet. The present invention relates to a roll mark removal device of an improved cold rolled steel sheet to improve the quality of a cold rolled steel sheet by removing various iron pieces, iron powder, and metal foreign substances, which are simultaneously rolled with the cold rolled steel sheet.
본 고안에 따른 냉연강판의 롤 마크(Roll Mark)제거장치에 의하면, 냉연강판의 조질압연설비에서 냉연강판과 함께 압연기로 진입되는 철편, 철분및, 각종 금속이물질을 냉연강판으로 부터 제거시킴으로서 냉연강판의 롤 마크발생을 방지하여 최종완제품의 실수율향상및, 작업생산성 향상과, 생산원가의 절감을 이룰수 있는 실용상의 효과가 얻어지는 것이다.According to the roll mark removing device of the cold rolled steel sheet according to the present invention, the cold rolled steel sheet by removing the iron, iron, and various metal foreign substances entering the rolling mill together with the cold rolled steel sheet in the cold rolling equipment of the cold rolled steel sheet By preventing the occurrence of roll marks, the practical effect of improving the error rate of the final finished product, improving the work productivity and reducing the production cost is obtained.
Description
제1도는 일반적인 냉연강판 제조설비의 조질압연설비를 도시한 구성도.1 is a block diagram showing the temper rolling equipment of a typical cold rolled steel sheet manufacturing equipment.
제2도는 본 고안에 따른 냉연강판의 롤 마크(Roll Mark)제거장치를 전체적으로 도시한 사시도.Figure 2 is a perspective view showing the roll mark (roll mark) removing apparatus of the cold rolled steel sheet according to the present invention as a whole.
제3도는 본 고안에 따른 냉연강판의 롤 마크(Roll Mark)제거장치가 조질압연설비에 장착된 구성도이다.3 is a configuration diagram in which a roll mark removal apparatus of a cold rolled steel sheet according to the present invention is mounted in a temper rolling facility.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
10 : 금속이물질 제거부 12 : 전자석10: foreign metal removal unit 12: electromagnet
15 : 공압실린더 20 : 금속이물질 배출부15: pneumatic cylinder 20: metal foreign material discharge part
27 : 회전구동모터 30 : 제어부27: rotation drive motor 30: control unit
s : 냉연강판 w : 금속이물질s: cold rolled steel sheet w: foreign metal
본 고안은 냉연강판의 최종 압연설비인 조질압연설비(T.SPM)에서 냉연강판에 형성되는 롤 마크(Roll Mark)를 제거하는 장치에 관한 것으로, 보다 상세히는 냉연강판상에 잔류되어 조질압연설비에서 냉연강판과 동시에 압연되는 각종 철편, 철분및 금속이물질등을 사전에 제거시킴으로서 냉연강판의 품질을 향상 시킬 수 있도록 개선된 냉연강판의 롤 마크(Roll Mark)제거장치에 관한 것이다.The present invention relates to an apparatus for removing a roll mark formed on a cold rolled steel sheet in a T.SPM, which is a final rolling facility of a cold rolled steel sheet. The present invention relates to a roll mark removing device of an improved cold rolled steel sheet to improve the quality of a cold rolled steel sheet by removing various iron pieces, iron, and metal foreign substances which are simultaneously rolled together with the cold rolled steel sheet.
일반적으로 냉연강판 제조설비의 최종공정에는 조질압연설비가 갖춰지는 데, 상기 조질압연설비(100)는 제1도에 도시된 바와 같이 복수개의 2단 압연롤(110)을 갖추고, 상기 압연롤(110)의 전방측으로는 한 쌍의 브리들롤(Bride Roll)(120)과 페이 오프릴(Pay Off Roll)(115)이 위치되며, 상기 압연롤(110)의 후방측으로는 다른 한쌍의 브리들롤(Bride Roll)(117)과 텐션 롤(Tension Roll)(120)이 갖춰진다. 그리고 이와 같은 조질압연설비(100)에는 페이 오프릴(115)에 냉연코일(S)이 감겨진다음 한 쌍의 브리들 롤(112)를 통하여 압연롤(110)측으로 진입되며, 상기 압연롤(110)을 통과한 다음에는 후방측의 브리들 롤(117)을 통하여 텐션릴(120)에 감기게 되는 것이다. 이러한 과정에서 압연롤(110)의 입측의 냉연강판(s)은 페이 오프릴(120)에서 풀리면서 냉연강판(S)의 모서리부에 부착된 각종 금속이물질(W)이나 냉연강판의 불량부(모서리 찍힘, 파손, 과소둔에 의한 밀착)의 철편등이 냉연강판(S)의 표면상부로 낙하됨으로서 압연롤(110)에 함께 진입하는 것이다. 따라서, 이러한 철편,철분및 금속(대부분이 철)이물질(W)등이 압연롤(110)에 함께 진입하여 냉연강판(S)가 함께 압연됨으로서 압연기를 통과한 냉연강판상에 롤마크를 발생시키고, 그에 따른 불량재품을 생산하는 결과를 초래하고 마는 것이다. 이러한 롤 마크가 발생된 냉연강판(S)은 전량 스크랩 처리되어야 하며, 따라서 냉연강판의 실수율이 저하됨은 물론, 작업능률의 저하와 함께 생산원가의 상승을 초래하는 큰 문제점을 갖는 것이다.In general, the final process of the cold rolled steel sheet manufacturing equipment is equipped with a temper rolling equipment, the temper rolling equipment 100 is provided with a plurality of two-stage rolling roll 110, as shown in FIG. A pair of bridle rolls 120 and a pay off roll 115 are positioned at the front side of the 110, and another pair of bridles is located at the rear of the rolling roll 110. A roll roll 117 and a tension roll 120 are provided. And the cold rolling coil (S) is wound on the pay-off reel (115) in such a rough rolling facility 100 is entered into the rolling roll 110 side through a pair of bridle roll 112, the rolling roll ( After passing through the 110 is to be wound on the tension reel 120 through the rear bridle roll 117. In this process, the cold rolled steel sheet (s) at the inlet side of the rolling roll 110 is released from the pay off reel 120, and various metal foreign matters (W) attached to the corners of the cold rolled steel sheet (S) or defective parts of the cold rolled steel sheet ( The iron pieces of the corners, breakage, and close annealing) fall on the surface of the cold rolled steel sheet S to enter together with the rolling roll 110. Therefore, such iron pieces, iron and metal (mostly iron) foreign matter (W) enters the rolling roll 110 together with the cold rolled steel (S) is rolled together to generate a roll mark on the cold rolled steel sheet passed through the rolling mill This results in the production of defective goods. The cold rolled steel sheet (S) in which such a roll mark is generated should be scraped in its entirety, thus reducing the error rate of the cold rolled steel sheet, and having a great problem of causing a rise in production cost with a decrease in work efficiency.
본 고안은 상기한 바와같은 종래의 문제점을 해결하기 위하여 안출된 것으로서, 그 목적은 냉연강판의 조질압연설비에서 냉연강판과 함께 압연기로 진입되는 철편, 철분및, 각종 금속이물질을 제거시킴으로서 냉연강판의 롤 마크발생을 방지함으로서 최종 완제품의 실수율향상및, 작업생산성 향상과, 생산원가의 절감을 이룰수 있는 냉연강판의 롤 마크(Roll Mark)제거장치를 제공하는 데 있다.The present invention has been made to solve the conventional problems as described above, the purpose of the cold rolled steel sheet by removing the iron, iron, and various metal foreign substances entering the rolling mill with the cold rolled steel sheet in the cold rolling equipment It is to provide a roll mark removal device of a cold rolled steel sheet which can improve the error rate of the finished product, improve work productivity, and reduce production cost by preventing the occurrence of roll marks.
상기와 같은 목적을 달성하기 위한 기술적인 수단으로써, 본 고안은, 냉연강판 제조설비의 조질압연장치에서 냉연강판상에 롤 마크의 형성을 방지하도록 된 장치에 있어서, 조질압연장치의 전방 브리들 롤의 후방측에 위치되고, 냉연강판의 상부에서 폭 방향으로 연장되며, 양측단부에는 냉연 강판의 양측으로 수직위치된 공압실린더의 작동로드가 연결되는 전자석을 갖추어 상기 전자석이 공압실린더의 작동으로 냉연강판의 상부에서 상,하이동하고, 전자석의 작동으로 냉연강판 상부의 금속이물질을 부착 제거하는 금속이물질 제거부; 상기 냉연강판의 하부에서 상기 전자석과 나란한 폭 방향으로 연장되고, 일측단부는 베어링에 의해서 회전가능하도록 지지되며, 타측단부는 회전구동모터의 회전축에 연결되어 상기 회전구동모터의 작동으로 회전작동이 가능한 금속이물질 배출부; 및, 상기 각각의 전자석에 전원을 인가하여 전자력을 선택적으로 발생시키고, 상기 공압실린더의 온, 오프동작을 제어하여 상기 전자석을 상,하승강시키며, 상기 회전구동모터를 선택적으로 작동시켜, 상기 전자석을 정,역회전시키는 제어부;를 포함함을 특징으로 하는 냉연강판의 롤 마크(Roll Mark)제거장치를 마련함에 의한다.As a technical means for achieving the above object, the present invention, in the apparatus for preventing the formation of the roll mark on the cold rolled steel sheet in the temper rolling device of the cold rolled steel sheet manufacturing equipment, the front bridle roll of the temper rolling device Located on the rear side of the, and extending in the width direction from the top of the cold rolled steel sheet, both ends are equipped with an electromagnet is connected to the operating rod of the pneumatic cylinder vertically positioned on both sides of the cold rolled steel sheet, the electromagnet is cold rolled steel sheet by the operation of the pneumatic cylinder Moving up and down in the upper portion, the metal foreign material removal unit for attaching and removing the metal foreign material on the upper portion of the cold rolled steel sheet by the operation of the electromagnet; It extends in the width direction parallel to the electromagnet in the lower portion of the cold-rolled steel sheet, one end is supported to be rotatable by a bearing, the other end is connected to the rotary shaft of the rotary drive motor to enable the rotation operation by the operation of the rotary drive motor Metal foreign material discharge unit; And applying power to each of the electromagnets to selectively generate an electromagnetic force, control the on / off operation of the pneumatic cylinder to move the electromagnet up and down, and selectively operate the rotary drive motor to operate the electromagnet. The control unit for forward and reverse rotation; by providing a roll mark (Roll Mark) removal device of the cold rolled steel sheet comprising a.
이하, 본 고안을 첨부된 도면에 의거하여 보다 상세하게 설명한다.Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.
제2도에는 본 고안에 따른 냉연강판의 롤 마크(Roll Mark)제거장치(1)가 전체적으로 도시되어 있다. 상기 롤 마크(Roll Mark)제거장치(1)는 냉연강판(S)의 상부에서 상, 하이동하고, 냉연강판(S) 상부의 금속이물질을 제거하는 금속이물질 제거부(10)를 갖추는 바, 상기 금속이물질 제거부(10)는 조질압연장치(100)의 전방 브리들 롤(112)의 후방측에 위치되고, 냉연강판(S)의 상부에서 폭 방향으로 연장되는 긴 전자석(12)을 갖추며, 상기 전자석(12)의 양측단부에는 냉연 강판(S)의 양측으로 수직위치된 복수개의 공압실린더(15)의 작동로드(15a)가 연결된다. 따라서, 상기 전자석(12)은 공압실린더(15)의 작동으로 작동로드(15a)가 상, 하로 이동함으로서 냉연강판(S)의 상부에서 상, 하이동하고, 상기 전자석(12)으로 전원이 인가되면, 냉연강판(S)상부의 금속이물질(W)을 전자석(12)의 하부면에 부착시키게 되는 것이다. 그리고, 상기 냉연강판(S)의 하부에는 금속이물질 배출부(20)를 갖추는 바, 상기 금속이물질 배출부(20)는 상기 전자석(12)과 나란한 폭 방향으로 냉연강판(S)의 하부에서 연장되는 전자석(22)을 갖추고, 상기 전자석(22)의 일측단부는 베어링(25)에 의해서 회전가능하도록 지지되며, 타측단부는 회전구동모터(27)의 회전축(27a)에 연결되어 상기 회전구동모터(27)의 작동으로 360도 정,역회전작동이 가능한 것이다. 또한, 상기 각각의 금속이물질 제거부(10)와, 금속이물질 배출부(20)를 작동시키는 제어부(30)는 상기 냉연강판(S) 상부측의 전자석(12)과 하부측의 전자석(22)에 전원을 인가하여 전자력을 선택적으로 발생시키고, 상기 금속이물질 제거부(10)의 공압실린더(15) 제어변(16)에 전원을 인가하여 솔레노이드 밸브(미도시)를 작동시킴으로서 선택적으로 상기 공압실린더(15)를 온, 오프 제어하며, 상기 회전구동모터(27)를 선택적으로 작동시켜 상기 전자석을 360도 정, 역회전시키도록 전기적으로 연결되는 것이다.2 shows a roll mark removal device 1 of a cold rolled steel sheet according to the present invention as a whole. The roll mark removal device 1 is provided with a metal foreign material removal unit 10 that moves up and down at the top of the cold rolled steel sheet S, and removes the metal foreign matter on the upper portion of the cold rolled steel sheet S. The metal foreign material removing unit 10 is located at the rear side of the front briddle roll 112 of the temper rolling device 100, and has a long electromagnet 12 extending in the width direction from the top of the cold rolled steel sheet (S). Operation rods 15a of the plurality of pneumatic cylinders 15 vertically positioned to both sides of the cold rolled steel sheet S are connected to both end portions of the electromagnet 12. Therefore, the electromagnet 12 is moved up and down at the top of the cold rolled steel (S) by moving the operating rod 15a up and down by the operation of the pneumatic cylinder 15, the power is applied to the electromagnet 12 Then, the foreign matter (W) of the upper portion of the cold rolled steel sheet (S) is to be attached to the lower surface of the electromagnet 12. And, the lower portion of the cold rolled steel (S) is provided with a metal foreign substance discharge portion 20, the metal foreign substance discharge portion 20 extends from the lower portion of the cold rolled steel sheet (S) in the width direction parallel to the electromagnet 12. Is equipped with an electromagnet 22, one end of the electromagnet 22 is supported to be rotatable by the bearing 25, the other end is connected to the rotary shaft 27a of the rotary drive motor 27, the rotary drive motor The operation of (27) allows the 360 degree forward and reverse operation. In addition, the control unit 30 for operating each of the metal foreign material removal unit 10 and the metal foreign material discharge unit 20 is the electromagnet 12 of the upper side of the cold rolled steel (S) and the electromagnet 22 of the lower side Selectively applying the electric power to the pneumatic cylinder 15 and the control valve 16 of the metal foreign material removing unit 10 to operate a solenoid valve (not shown) to selectively operate the pneumatic cylinder. (15) to control the on, off, it is electrically connected to rotate the electromagnet 360 degrees, reverse rotation by selectively operating the rotary drive motor (27).
이러한 구성으로된 본 고안의 작용효과에 대하여 설명하면 다음과 같다. 먼저, 냉연강판(S)을 조질압연장치(100)로 공급하는 경우, 금속이물질 제거부(10)의 전자석(12)은 공압실린더(15)의 작동으로 상부측에, 대략적으로 냉연강판(S)으로 부터 300㎜ 상부측에 위치시킨 다음, 전방 브리들 롤(112)을 통한 냉연강판의 진입이 이루어진다. 이때, 상기 전자석(12)(22)으로는 전원공급이 이루어지지 않음으로서 상기 각각의 전자석(12)(22)은 아무런 자력도 갖지 못하고, 그에 따른 냉연강판(S)의 진입작동은 자유스럽게 이루어 질수 있는 것이다. 그리고, 압연롤(110)측으로 냉연강판(S)의 진입이 이루어지고 냉연강판(S)에 장력이 부여되어 압연작업이 이루어지면, 금속이물질 제거부(10)가 작동되는 바, 이때에는 상기 전자석(12)(22)으로 제어부로 부터 전원이 인가되어 전자력이 부여되고, 상기 공압실린더 쌍(15)은 작동로드(15a)가 하향이동하도록 제어되며, 이러한 경우, 상기 전자석(12)은 냉연강판의 표면으로 부처 대략 30㎜ 까지 하향이동되어 냉연강판(S)의 상부에 근접위치되는 것이다. 따라서, 냉연강판(s)의 상부측에 잔류하는 각종 철편, 철분및, 금속이물질(W)은 금속이물질 제거부(10)의 전자석(12)에 부착되어 냉연강판(S)이 조질압연기로 진입하기전에 상기 냉연강판으로 부터 제거되는 것이다. 이와 같이 상기 전자석(12)으로 부착되는 금속이물질(W)중에는 철분가루가 오일에 뭉쳐진 것이나, 덴트(Dent)를 발생시키는 미세한 금속조각등이 포함되어 덜 마크(Dull Mark)의 결함을 제거시킬 수 있는 것이다. 이와 같은 과정으로 압연작업중인 냉연강판(S)으로 부터 철편, 철분및, 금속이물질(W)을 제거시킨 다음에는 냉연코일의 압연작업이 종료되고, 새로운 냉연코일이 페이 오프릴(120)에 장착되게 되는 바, 이때 압연 완료된 냉연코일이 압연롤측으로 완전히 빠져 나간다음에는 상기 전자석(12)으로는 전원공급이 차단되고, 상기 금속이물질 배출부(20)의 전자석(22)으로는 전원이 인가되어 전자력이 유지됨으로서, 상기 전자석(12)에 부착되었던 철편, 철분및, 금속이물질(W)등은 하부의 전자석(22)으로 낙하되어 부착되는 것이다. 이러한 상태에서 상기 금속이물질 배출부(20)의 회전구동모터(27)에는 제어부(30)로 부터 전원이 인가되어 상기 회전구동모터(27)가 전자석(22)을 180도 회전시키면서 상기 전자석(22)으로 전원인가를 차단시키면, 상기 전자석(22)에 부착되었던 철편, 철분및, 금속이물질(W)등은 브리들 롤(112)의 하부로 낙하되어 배출되는 것이다.Referring to the effect of the present invention made in this configuration as follows. First, in the case of supplying the cold rolled steel sheet S to the temper rolling device 100, the electromagnet 12 of the metal foreign matter removing unit 10 is on the upper side by the operation of the pneumatic cylinder 15, approximately cold rolled steel sheet (S) ) 300 mm from the top side, and then the entry of the cold rolled steel sheet through the front bridle roll (112). At this time, power is not supplied to the electromagnets 12 and 22, so that each of the electromagnets 12 and 22 has no magnetic force, and thus the entry of the cold rolled steel S is freely performed. I can't. In addition, when the cold rolled steel sheet S enters into the rolling roll 110 and a tension is applied to the cold rolled steel sheet S, the rolling work is performed, and the metal foreign material removing unit 10 is operated. In this case, the electromagnet (12) and (22) power is applied from the control unit is applied to the electromagnetic force, the pneumatic cylinder pair 15 is controlled to move the operating rod 15a downwards, in this case, the electromagnet 12 is cold rolled steel sheet It is moved to the surface of the Buddha down to approximately 30mm to be located close to the top of the cold rolled steel (S). Therefore, the various iron pieces, iron, and metal foreign matters W remaining on the upper side of the cold rolled steel sheet s are attached to the electromagnet 12 of the metal foreign material removing unit 10 so that the cold rolled steel sheet S enters into the temper rolling mill. Before it is removed from the cold rolled steel sheet. As such, the foreign metal (W) attached to the electromagnet 12 includes iron powder agglomerated in oil or fine metal fragments that generate dents, thereby eliminating defects of a lesser mark. It is. After the strips, iron, and metal foreign matters (W) are removed from the cold rolled steel sheet S being rolled in this process, the rolling operation of the cold rolled coil is terminated, and a new cold rolled coil is mounted on the pay off reel 120. At this time, after the rolled cold rolled coil completely exits to the rolling roll side, power supply is cut off to the electromagnet 12, and power is applied to the electromagnet 22 of the metal foreign substance discharge unit 20. As the electromagnetic force is maintained, the iron pieces, iron powder, and metal foreign matter (W) attached to the electromagnet 12 are dropped and attached to the lower electromagnet 22. In this state, power is supplied from the control unit 30 to the rotary drive motor 27 of the metal foreign substance discharge unit 20 so that the rotary drive motor 27 rotates the electromagnet 22 by 180 degrees. When the power supply is cut off by), iron pieces, iron powder, and metal foreign matter (W) attached to the electromagnet 22 are dropped and discharged to the lower portion of the bridle roll 112.
상술한 바와같이 본 고안에 따른 냉연강판의 롤 마크(Roll Mark)제거장치에 의하면, 냉연강판의 조질압연설비에서 냉연강판과 함께 압연기로 진입되는 철편, 철분및, 각종 금속이물질을 냉연강판으로 부터 제거시킴으로서 냉연강판의 롤 마크발생을 방지하여 최종 완제품의 실수율향상및, 작업생산성 향상과, 생산원가의 절감을 이룰수 있는 실용상의 효과가 얻어지는 것이다.As described above, according to the roll mark removing device of a cold rolled steel sheet according to the present invention, iron strips, iron, and various metal foreign substances entering the rolling mill together with the cold rolled steel sheet in the cold rolling equipment of the cold rolled steel sheet By eliminating the roll mark of the cold rolled steel sheet, it is possible to obtain a practical effect to improve the error rate of the final finished product, to improve the work productivity and to reduce the production cost.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019950036480U KR200153852Y1 (en) | 1995-11-29 | 1995-11-29 | Apparatus exclusion roll mark of cold sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019950036480U KR200153852Y1 (en) | 1995-11-29 | 1995-11-29 | Apparatus exclusion roll mark of cold sheet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR970021058U KR970021058U (en) | 1997-06-18 |
| KR200153852Y1 true KR200153852Y1 (en) | 1999-08-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019950036480U KR200153852Y1 (en) | 1995-11-29 | 1995-11-29 | Apparatus exclusion roll mark of cold sheet |
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| Country | Link |
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| KR (1) | KR200153852Y1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100515580B1 (en) * | 2001-12-22 | 2005-09-20 | 주식회사 포스코 | Dull removal apparatus of skin pass mill |
| KR100762484B1 (en) * | 2001-10-31 | 2007-10-02 | 주식회사 포스코 | Apparatus for removing used oil to roll the strip |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100822974B1 (en) * | 2002-07-13 | 2008-04-17 | 주식회사 포스코 | Apparatus for terminating piece of iron on surface of roll |
-
1995
- 1995-11-29 KR KR2019950036480U patent/KR200153852Y1/en not_active IP Right Cessation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100762484B1 (en) * | 2001-10-31 | 2007-10-02 | 주식회사 포스코 | Apparatus for removing used oil to roll the strip |
| KR100515580B1 (en) * | 2001-12-22 | 2005-09-20 | 주식회사 포스코 | Dull removal apparatus of skin pass mill |
Also Published As
| Publication number | Publication date |
|---|---|
| KR970021058U (en) | 1997-06-18 |
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