KR100293231B1 - Apparatus for wipping and cleaning air knife - Google Patents
Apparatus for wipping and cleaning air knife Download PDFInfo
- Publication number
- KR100293231B1 KR100293231B1 KR1019960065681A KR19960065681A KR100293231B1 KR 100293231 B1 KR100293231 B1 KR 100293231B1 KR 1019960065681 A KR1019960065681 A KR 1019960065681A KR 19960065681 A KR19960065681 A KR 19960065681A KR 100293231 B1 KR100293231 B1 KR 100293231B1
- Authority
- KR
- South Korea
- Prior art keywords
- lip
- air knife
- screw
- zinc
- wipping
- Prior art date
Links
- 238000004140 cleaning Methods 0.000 title claims abstract description 27
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 45
- 239000011701 zinc Substances 0.000 claims abstract description 45
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 45
- 238000005498 polishing Methods 0.000 claims description 27
- 238000000227 grinding Methods 0.000 claims description 21
- 241001417527 Pempheridae Species 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 claims 1
- 229910001335 Galvanized steel Inorganic materials 0.000 abstract description 6
- 239000008397 galvanized steel Substances 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000005246 galvanizing Methods 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 description 17
- 239000010959 steel Substances 0.000 description 17
- 238000000034 method Methods 0.000 description 5
- 238000007747 plating Methods 0.000 description 5
- 230000007547 defect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000000137 annealing Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/003—Apparatus
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
- B08B1/16—Rigid blades, e.g. scrapers; Flexible blades, e.g. wipers
- B08B1/165—Scrapers
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
- C23C2/06—Zinc or cadmium or alloys based thereon
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/14—Removing excess of molten coatings; Controlling or regulating the coating thickness
- C23C2/16—Removing excess of molten coatings; Controlling or regulating the coating thickness using fluids under pressure, e.g. air knives
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Coating With Molten Metal (AREA)
Abstract
Description
본 발명은 용융아연도금공정의 에어나이프 연마 및 소제장치에 관한 것으로, 보다 상세히는 소둔로에서 열처리된 강판을 용융아연 욕조에서 연속도금하고 이를 직상부에 위치하는 에어나이프로서 두께조정을 하는 경우, 에어나이프 립(air knife lip) 분사구 주위에 고착된 아연 및 드로스(dross)부착물을 제거하고 에어나이프 립 표면의 끝을 깨끗이 연마하여 품질이 우수한 아연도금강판을 제조하기 위한 에어나이프 연마 및 소제장치에 관한 것이다.The present invention relates to an air knife polishing and cleaning device of a hot dip galvanizing process, and more particularly, when the steel plate heat-treated in the annealing furnace is continuously plated in a hot dip zinc bath and the thickness is adjusted as an air knife located directly above, Air knife grinding and cleaning equipment for manufacturing high quality galvanized steel sheet by removing zinc and dross deposits stuck around air knife lip nozzles and polishing the end of air knife lip surface cleanly It is about.
일반적으로 연속용융아연도금강판의 제조공정은 제1도에 도시된 바와 같이, 냉각압연공정을 거친 강판을 소둔로에서 열처리하여 성형성과 도장밀착성이 양호한 강판으로 만든 후, 아연도금욕조(100)에 인입하여 강판(S)표면에 아연을 부착시키고, 강판(S)표면의 용융아연(110)이 응고되기 전에 에어나이프(120)에서 고압의 공기를 분사시켜 균일하게 아연도금이 되도록 하며, 이후에 도금된 강판(S)을 냉각시키고 조질압연을 실시하여 표면 품질 및 성형성이 우수한 용융아연도금강판을 제조하는 것이다.In general, the manufacturing process of the continuous hot-dip galvanized steel sheet is, as shown in Figure 1, the steel sheet subjected to the cold rolling process is heat-treated in an annealing furnace to make a steel sheet with good formability and coating adhesion, and then to the galvanized bath 100 The zinc is attached to the surface of the steel sheet (S), and the high pressure air is injected from the air knife (120) before the molten zinc 110 on the surface of the steel sheet (S) is solidified so as to be uniformly galvanized. The plated steel sheet (S) is cooled and subjected to temper rolling to produce a hot dip galvanized steel sheet having excellent surface quality and formability.
한편, 도금량을 조절하는 에어나이프 시스템은 고압공기가 에어나이프(120) 립(120a)을 통해 분사될 때, 제3도에 도시된 바와 같이, 공기의 와류현상에 의해 아연드로스가 립의 경사면을 타고 성장하여 에어 나이프립(120a)의 분사토출구를 막아 고착되며, 또한 선, 후행 강판(S)의 폭 편차발생시나 강판 가장자리 구부러짐(파손부, wave)부분이 에어나이프(120) 립 끝부분에 접촉되면 긁힌 흠이 발생되어 와류현상이 더욱 심해져 에어나이프 립(120a) 표면에 아연고착이 심해진다On the other hand, in the air knife system for adjusting the plating amount, when the high pressure air is injected through the air knife 120 lip 120a, as shown in FIG. Riding and growing to block the jet discharge outlet of the air knife lip (120a), and also, when the width deviation of the line, trailing steel (S) occurs or the edge of the steel sheet bent (broken, wave) portion at the end of the air knife lip When contacted, scratches are generated, and the vortex becomes more severe, and the zinc adhesion on the surface of the air knife lip 120a is increased.
그리고, 연속적으로 에어나이프(120)를 통과하는 강판(S)에 공기를 분사하여 도금량을 조절하는 과정에서 립 표면에 아연이 고착되면, 고착된 부분을 통과하는 공기의 압력이 저하되고 공기가 와류를 일으키므로서 강판 폭방향으로 균일한 분사가 되지 않고 강판표면에 과도금 및 줄 마크가 발생되어 도금제품에 치명적 결함을 유발시킨다.Then, when zinc is fixed to the lip surface in the process of continuously controlling the plating amount by spraying air on the steel sheet (S) passing through the air knife 120, the pressure of the air passing through the fixed portion is lowered and the air vortex As a result, over plating and file marks are generated on the surface of the steel sheet without uniform spraying in the width direction of the steel sheet, which causes fatal defects in the plated product.
또한, 도금작업시 에어나이프(120) 립(120a)을 통해 분사되는 공기압력에 의해 강판표면의 용융아연이 제거되면서 발생된 아연드로스(아연 칩)가 에어나이프 립 분사구 하부 턱부에 쌓이고, 점점 아연드로스가 증가하여, 결국에는 나이프 립면을 막게 된다.In addition, during the plating operation, zinc dross (zinc chips) generated as molten zinc is removed from the surface of the steel sheet by the air pressure injected through the air knife lip 120a is accumulated in the lower jaw of the air knife lip nozzle. Zinc dross increases, eventually blocking the knife lip face.
그리고, 제3도에 도시된 바와 같이, 고압공기가 불출되어 와류를 일으키는 외부는 동압("+")이며, 내부는 부압("-")으로서 압력이 낮은 내부에서 비산된 아연드로스 입자들이 에어나이프(120) 립(120a)의 턱 주위에 부착된다 이렇게 주변에 누적된 아연드로스들은 나이프 립 입구측으로 성장하게 되어 곁국 "립막힘"현상을 유발하여 강판 표면에 과도금(립자국)을 유발하게 된다.As shown in FIG. 3, high pressure air is discharged to cause vortex, and the outside is dynamic pressure ("+"), and the inside is negative pressure ("-"). It is attached around the jaw of the air knife lip 120a. The zinc dross accumulated in the surroundings grows toward the inlet side of the knife lip, causing side lip clogging and causing overplating on the surface of the steel sheet. Will cause.
따라서, 제2도에 도시된 바와 같은 에어나이프의 립이 막히면 즉시 아연드로스를 제거해야 하며 그 방법은 아연드로스가 고착되어 막힌 립 분사구에 제7도에 도시된 바와 같은 립청소기(130)의 핀(135)을 끼워 넣어 긁어 내는 것이다.Therefore, when the lip of the air knife as shown in FIG. 2 is clogged, the zinc dross should be removed immediately. The method of the lip cleaner 130 as shown in FIG. The pin 135 is inserted and scraped off.
상기 종래의 립(lip) 청소기(130)는 긴 파이프의 끝 부분을 납짝하게 압착시키고 납짝한 부위중앙에 0.8㎜의 강선의 핀(135)이 부착되어 있는데 립 막힘 제거 작업은 강선을 립 분사구사이에 끼워 넣고, 립의 수평방향으로 왕복시켜 아연드로스를 제거하는 것이다.The conventional lip cleaner (130) is a flat crimped end of the long pipe and a pin 135 of 0.8mm steel wire is attached to the center of the flat portion, the lip clogging operation is the steel wire between the lip injection hole The zinc dross is removed by reciprocating in the horizontal direction of the lip.
그러나, 이러한 종래의 작업방식은 에어나이프 시스템이 용융아연 도금욕조위에 설치되어 있고, 고열이 발생하는 곳이며, 장소가 협소하여 아연드로스의 제거작업이 상당히 어렵고 위험스런 문제점이 있었다.However, this conventional operation method is that the air knife system is installed on the hot-dip galvanizing bath, where high heat is generated, and the place is narrow, which makes the removal of zinc dross quite difficult and dangerous.
또한, 립 표면에 고착되어 피막을 형성한 아연이나 긁힌 흠집은 제거가 불가능하므로 이때에는 생산휴지로 전환하여 에어나이프 립 표면을 연마작업해야 하는데 뜨거운 용융아연욕조 상부에서 작업을 수행해야 하므로 작업상의 어려움 및 안전사고 위험이 존재한다.In addition, zinc or scratched scratches formed on the surface of the lip cannot be removed. At this time, the air knife lip surface should be polished by switching to a production stop. And the risk of safety accidents.
본 발명은 상기한 바와같이 종래의 제반 문제점을 해소하기 위하여 안출된 것으로서, 에어나이프 립 표면에 아연부착이나 긁힌 흠이 발생되면 작업자가 설비에 접근하지 않고 자동으로 손쉽게 립 표면을 소제하고 연마하여 강판 표면에 립막힘으로 인한 결함이 발생되지 않도록 함으로서, 품질 향상 및 생산성의 향상이 이루어 지도록 한 에어나이프 연마 및 소제장치를 제공함에 그 목적이 있는 것이다.The present invention has been made in order to solve the conventional problems as described above, when zinc adhesion or scratches occur on the air knife lip surface, the operator can easily clean and polish the lip surface automatically without access to the equipment It is an object of the present invention to provide an air knife polishing and cleaning device that prevents defects due to lip clogging on the surface, thereby improving quality and improving productivity.
제1도는 일반적인 아연도금강판 생산설비를 도시한 개략구성도,1 is a schematic configuration diagram showing a general galvanized steel sheet production equipment,
제2도는 본 발명에 따른 에어나이프 연마 및 소제장치가 장착될 도금기의 구성도,2 is a block diagram of a plating machine to be equipped with an air knife polishing and cleaning device according to the present invention,
제3도는 일반적인 에어나이프의 립 표면에 아연부착현상을 도시한 설명도,3 is an explanatory diagram showing a zinc adhesion phenomenon on the lip surface of a general air knife,
제4도는 본 발명에 따른 에어나이프 연마 및 소제장치의 전체구성도,4 is an overall configuration of the air knife polishing and cleaning device according to the present invention,
제5도는 본 발명에 따른 에어나이프 연마 및 소제장치의 연마부 구성도,5 is a configuration diagram of the polishing portion of the air knife polishing and cleaning device according to the present invention,
제6도는 본 발명에 따른 에어나이프 연마 및 소제장치의 연마부와 에어나이프 립을 절개한 측면도,FIG. 6 is a side view of the polishing portion and the air knife lip of the air knife polishing and cleaning device according to the present invention;
제7도는 종래기술에 따른 립 소제기를 도시한 사시도.7 is a perspective view showing a lip purifier according to the prior art.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 전동모터 2 : 베어링 블럭1: electric motor 2: bearing block
3 : 스크류 4 : 이동암나사3: screw 4: moving female thread
5 : 상부압력조절지지대 6 : 하부압력조절지지대5: upper pressure adjustment support 6: lower pressure adjustment support
7 : 연마고정대 8 : 리미트스위치7: polishing fixture 8: limit switch
9 : 이동암나사 10 : 수평이동대9: Moving arm screw 10: Horizontal moving table
11 : 에어나이프 립 12 : 콘트롤 박스(control box)11 air knife lip 12 control box
상기 목적을 달성하기 위한 기술적 구성으로서 본 발명은, 에어나이프 립 표면의 아연고착과 흠집, 그리고 하부에 부착된 아연드로스를 제거하기 위한 연마장치에 있어서, 상기 용융아연욕조상부에 설치된 와이핑 시스템의 에어나이프 립 상부일측에 장착된 전동모터의 회전축에는 상기 립을 따르는 스크류가 연결되어 베어링블록으로서 회전 가능토록 지지되고, 상기 스크류에 설치된 이동암나사와 상기 립 하부에 부착된 수평이동안내대사이에는 상부고정커버와 하부고정커버에 의해 볼트로 연마숫돌이 고정되는 연마고정대가 연결되고, 상기 하부고정커버의 중앙에는 삼각단면을 이루는 스크래퍼가 부착되어 전동모터의 구동으로 에어나이프의 립과 그 하부에 부착된 아연드로스가 연마 제거토록 구성되는 에어나이프 연마장치를 마련함에 의한다.As a technical configuration for achieving the above object, the present invention, in the polishing apparatus for removing the zinc fixation and scratches on the surface of the air knife lip, and the zinc dross attached to the lower portion, the wiping system provided in the molten zinc bath The rotary shaft of the electric motor mounted on the upper side of the air knife lip of the screw is connected to the screw along the lip so as to be rotatably supported as a bearing block, and between the moving female screw installed in the screw and the horizontal rod attached to the lower portion of the lip A grinding wheel is fixed to which the grinding wheel is fixed by bolts by an upper fixing cover and a lower fixing cover. A scraper, which forms a triangular cross section, is attached to the center of the lower fixing cover. By providing an air knife polishing apparatus configured to remove the adhered zinc dross .
또한, 에어나이프 립 사이를 폐쇄시키는 아연드로스를 제거하기 위한 에어나이프 소제장치에 있어서, 상기 용융아연욕조상부에 설치된 와이핑 시스템의 에어나이프 립 상부 일측에 장착된 전동모터의 회전축에는 상기 립을 따르는 스크류가 연결되어 베어링블록으로서 회전 가능토록 지지되고, 상기 스크류에 설치된 이동 암나사와 상기 립 하부에 부착된 수평이동안내대사이에는 좌,우측에 립사이로 진입하는 복수개의 립 청소핀이 장착되는 연마고정대가 연결되며, 상기 연마고정대의 안쪽으로 장착되는 연마숫돌의 하부측에는 삼각단면을 이루는 스크래퍼가 부착되어 전동모터의 구동으로 상기 연마숫돌 및 립 청소핀이 에어나이프 립 표면을 연마 및 소제하고, 상기 스크래퍼는 에어나이프 립하부의 아연드로스를 제거시키도록 구성되는 에어나이프 소제장치를 마련함에 의한다.In addition, in the air knife cleaning device for removing the zinc dross closing between the air knife lip, the lip on the rotary shaft of the electric motor mounted on the upper side of the air knife lip of the wiping system installed on the molten zinc bath tank The following screw is connected and supported to be rotatable as a bearing block, and a plurality of lip cleaning pins are mounted between the moving female screw installed on the screw and the inner portion of the lip, which enters between the ribs on the left and right sides. A fixing rod is connected, and a scraper having a triangular cross section is attached to the lower side of the grinding wheel mounted inside the grinding fixing rod, and the grinding wheel and the lip cleaning pin polish and clean the surface of the air knife lip by driving an electric motor. The scraper is air or air configured to remove zinc dross underneath the air knife lip. The print cleaning apparatus according to the maryeonham.
이하, 본 발명을 도면에 따라서 보다 상세히 설명한다Hereinafter, the present invention will be described in more detail with reference to the drawings.
본 발명의 실시예는 제4도에 전체적으로 도시되어 있다. 본 발명의 에어나이프 연마장치(30)는 용융아연욕조(110)상부에 설치된 와이핑 시스템(wipping system)의 에어나이프 립상부일측에 전동모터(1)를 장착하고, 상기 전동모터(1)의 회전축에는 상기 립(11)의 상부측을 따라서 연장하는 스크류(3)를 연결하며, 상기 스크류(3)의 양측단부는 베어링블록(2)으로 회전가능하도록 지지된다.An embodiment of the present invention is shown overall in FIG. The air knife polishing apparatus 30 of the present invention mounts the electric motor 1 on one side of the air knife lip upper portion of the wiping system installed on the molten zinc bath 110, and the electric motor 1 of A screw 3 extending along the upper side of the lip 11 is connected to the rotating shaft, and both ends of the screw 3 are supported to be rotatable by the bearing block 2.
그리고, 상기 스크류(3)에는 이동암나사(4)가 설치되는 바, 상기 이동암나사(4)는 스크류(3)에 나사결합되어 스크류(3)의 회전작동으로 스크류(3)를 따라서 전, 후 이동하고, 에어나이프의 상부에 고정된 이동암나사 안내대(9)를 따라서 직선으로 이동하며, 상기 에어나이프 립(11)하부에는 상기 립(11)의 길이방향으로 수평이동안내대(10)를부착하고, 상기 이동암나사(4)와 수평이동안내대(10)사이에는 연마고정대(7)가 연결된다.In addition, the screw 3 is provided with a moving female screw 4, the moving female screw 4 is screwed to the screw (3) before and after the screw 3 by the rotational operation of the screw (3) Move, and move linearly along the movable female thread guide (9) fixed to the upper portion of the air knife, and the inner portion 10 in the longitudinal direction of the lip (11) below the air knife lip (11) And a grinding fixing rod 7 is connected between the movable female screw 4 and the inner casing 10 while being horizontal.
상기 연마고정대(7)에는 에어나이프 립(11)을 향하여 연마숫돌(7b)이 부착되어 상기 전동모터(1)의 구동으로 에어나이프의 립(11)에 부착된 아연드로스를 연마제거시키도록 구성되는 것이다.A grinding wheel 7b is attached to the grinding fixture 7 toward the air knife lip 11 so that the zinc dross attached to the lip 11 of the air knife is driven by the driving of the electric motor 1. It is composed.
그리고, 상기 에어나이프 소제장치(50)는 상기 에어나이프 연마장치(30)와 대부분의 구성이 동일하기 때문에 보다 상세한 설명은 생략하고, 단지 연마고정대(7)에는 에어나이프의 립(11)사이로 진입하는 복수개의 립 청소핀(7c)이 장착되어 상기 전동모터(1)의 구동으로 에어나이프의 립(11) 사이에 부착된 아연드로스를 제거시키도록 구성되는 것이다Since the air knife cleaning device 50 has the same configuration as that of the air knife polishing device 30, the detailed description thereof will be omitted. Only the polishing fixture 7 enters between the lip 11 of the air knife. A plurality of lip cleaning pins 7c are mounted to remove the zinc dross attached between the lip 11 of the air knife by driving the electric motor 1.
제5도는 본 발명에 따른 연마 및 소제장치의 연마부 세부사시도이며, 이는 이동암나사(4)위에 상부압력조절지지대(5)가 부착되고, 하부압력조절지지대(6)와 상부압력조절지지대(5)사이에 연마고정대(7)가 볼트로서 고정된다.5 is a detailed perspective view of the polishing part of the polishing and cleaning device according to the present invention, which is attached to the upper pressure adjusting support 5 on the moving female screw 4, the lower pressure adjusting support 6 and the upper pressure adjusting support 5. In between, the polishing fixture 7 is fixed as a bolt.
그리고, 상기 연마고정대(7) 안쪽으로 연마숫돌(7b)이 상부고정커버(7a)와 하부고정커버(7e)에 의해 볼트로 고정되고, 하부고정커버(7e)중앙에 삼각단면을 이루는 스크래퍼(7d)가 부착되고, 연마고정대(7)의 좌, 우측에 립 청소핀(7c)이 고정되어 있다.In addition, the grinding wheel 7b is bolted by the upper fixing cover 7a and the lower fixing cover 7e into the polishing fixing table 7, and a scraper having a triangular cross section at the center of the lower fixing cover 7e. 7d) is attached, and the lip cleaning pin 7c is fixed to the left and right sides of the polishing fixture 7.
그리고, 상기 이동암나사(4)는 전동모터(1)구동에 의해 스크류(3)가 회전하게 되면 스크류나사산에 맞물려 수평방향으로 이동되게 되고, 상부압력 조절지지대(5)에는 스프링(5a)압력을 조절하는 압력조절볼트(5b)가 위치하고, 하부압력조절지지대(6)에도 압력을 조절하는 압력조절볼트(6a)와 스프링(6b)이 부착되어 있으며 두 개의 로울러(6a)는 에어나이프 립의 하부측을 따라서 연장하는 수평이동안내대(10)에 끼워져서 원활한 수평이동을 돕는다.When the screw 3 is rotated by the driving of the electric motor 1, the movable female screw 4 is engaged with the screw thread and is moved in the horizontal direction, and the pressure of the upper pressure adjusting support 5 is applied to the spring 5a. Pressure adjusting bolt (5b) to adjust the position is located, the pressure adjusting bolt (6a) and the spring (6b) for adjusting the pressure is also attached to the lower pressure adjustment support (6), the two roller (6a) is the lower part of the air knife lip It is inserted into the inner bag 10 while extending horizontally along the side to help smooth horizontal movement.
그리고, 연마고정대(7)의 연마숫돌(7b)은 제6도에 도시된 바와 같이, 에어나이프 립(air knife lip)(11)표면의 아연고착이나 흠집을 좌, 우이동에 의해 연마하고, 립 청소핀(7c)은 에어나이프 립분사구 사이에 끼워져 아연드로스를 제거하며, 스크래퍼(7d)는 에어나이프 립(11) 하부의 아연드로스부착을 제거한다.As shown in FIG. 6, the abrasive grindstone 7b of the polishing fixture 7 polishes the zinc fixation or the scratch on the surface of the air knife lip 11 by left and right movement, The cleaning pin 7c is sandwiched between the air knife lip nozzles to remove the zinc dross, and the scraper 7d removes the zinc dross adhered to the bottom of the air knife lip 11.
따라서, 본 발명은 에어나이프 립의 분사구에 고착된 아연 및 립 표면흠집을 제거할 수 있는데, 선, 후행 강판(S)의 용접부가 아연욕조(110)를 통과 시점에 제4도에 도시된 조작판널(control box)(12)에서 전진스위치를 누르면 녹색지시등(12a)이 점등되고 전동모터(1)가 정방향으로 회전하여 스크류(3)를 회전시키면 이동암나사(4)가 수평방향으로 이동하게 된다.Therefore, the present invention can remove the zinc and lip surface scratches stuck to the injection hole of the air knife lip, the operation shown in Figure 4 at the time when the welded portion of the line, the trailing steel plate (S) passes through the zinc bath 110 When the forward switch is pressed on the control box 12, the green indicator light 12a is turned on, and when the electric motor 1 rotates in the forward direction and the screw 3 rotates, the movable female screw 4 moves in the horizontal direction. .
이때, 이동암나사(4)에 연결되어 이동하는 연마고정대(7)의 연마숫돌(7b)과 립 청소핀(7c)이 에어나이프 립 표면을 연마 및 소제하게 된다. 그리고 수평방향으로 계속 이동하게 되면 상부압력조절지지대(5)에 설비보호를 위한 리미트 스위치의 터치바(touch bar)(8b)가 접촉하게 되어 이동을 멈추고, 콘트롤 박스(12)의 녹색지시등(12a)이 소등되고 적색지시등(12b)이 점등된다.At this time, the grinding wheel (7b) and the lip cleaning pin (7c) of the grinding fixture 7 is connected to the moving female screw (4) to polish and clean the air knife lip surface. And if it continues to move in the horizontal direction, the touch bar (8b) of the limit switch for protecting the equipment is in contact with the upper pressure control support (5) to stop the movement, the green indicator (12a) of the control box 12 ) Is turned off and the red indicator 12b lights up.
따라서 콘트롤 박스(12)에서 후진스위치를 누르면 녹색지시등(12c)이 점등되면서 전동모터(1)는 역방향으로 회전하여 스크류(3)를 회전시기면 이동암나사(4)가 후진되면서 다시 연마숫돌(7b)과 립 청소핀(7c)이 에어나이프의 립(11) 표면을 연마 및 소제하게 된다.Therefore, when the reverse switch is pressed in the control box 12, the green indicator light 12c is turned on, and the electric motor 1 rotates in the reverse direction. When the screw 3 is rotated, the moving female screw 4 reverses, and the grinding wheel 7b is rotated again. ) And the lip cleaning pin 7c polish and clean the surface of the lip 11 of the air knife.
상기 이동암나사(4)가 계속 후진하게 되면 상부압력조절지지대(5)와 리미트 스위치(8a) 터치바(touch bar)가 접촉하게 되어 정지(stop)되고 녹색지시등(l2c)은 소등, 적색지시등(12b)은 점등된다.When the movable female screw 4 continues to retreat, the upper pressure regulating support 5 and the limit switch 8a touch bar are brought into contact with each other, and the green indicator light l2c is turned off and the red indicator light ( 12b) lights up.
한편, 연마고정대(7)의 상부, 하부압력조절지지대(5)(6)는 스프링(5a)압력을 조절하는 2개의 조절볼트(5b)를 조절함으로서 연마숫돌(7b)과 립 분사구와의 접촉압력을 조절하고, 연마고정대(7) 좌, 우에 립청소핀(7c)이 설치되어 분사구에 삽입된 아연드로스를 제거하고 연마고정대(7)안쪽에는 연마숫돌(7b)이 부착되어 립표면의 흠집을 연마제거하는 한편, 연마숫돌(7)의 하부 고정커버(7e)에는 삼각단면의 스크래퍼(7d)가 장착되어 에어나이프 립표면에 달라붙은 아연드로스를 제거하게 된다On the other hand, the upper and lower pressure adjustment supports (5) and (6) of the polishing fixture (7) are in contact with the abrasive grindstone (7b) and the lip jet by adjusting two adjustment bolts (5b) for adjusting the pressure of the spring (5a). The pressure is adjusted, and lip cleaning pins (7c) are installed on the left and right sides of the polishing holder (7) to remove zinc dross inserted into the injection hole, and the grinding wheel (7b) is attached to the inside of the polishing fixture (7). While removing the scratch, the lower fixing cover 7e of the grinding wheel 7 is equipped with a scraper 7d of triangular cross section to remove zinc dross stuck to the air knife lip surface.
그리고, 에어나이프(11)상부에 고정된 이동암나사 안내대(9)는 이동암나사(4)를 흔들림없이 원활히 움직이도록 하고, 하부에 고정된 수평이동안내대(10)는 로울러(6a)의 가이드(guide)로서 연마고정대(7)의 원활한 작동을 하게 하며, 상기와 같은 기능으로 에어나이프 립 표면을 소제 및 연마하게 하는 것이다.In addition, the movable female screw guide 9 fixed to the upper part of the air knife 11 allows the movable female screw 4 to move smoothly without shaking, and the inner band 10 fixed to the lower portion of the inner band 10 guides the roller 6a. As a guide, the polishing fixture 7 can be smoothly operated, and the air knife lip surface can be cleaned and polished with the above functions.
이러한 방법으로 에어나이프 립 표면에 아연고착이나 흠집을 제거하게 되면 용융도금제품의 품질이 향상되고 불량이 방지되며 생산성 향상이 가능하게 된다.In this way, removing zinc deposits or scratches on the air knife lip surface improves the quality of the hot-dip galvanized product, prevents defects, and improves productivity.
상술한 바와같이 본 발명의 연마소제 장치를 이용하여 에어나이프 립(11)표면의 아연고착이나 흠집을 자동으로 제거함으로서 항상 깨끗한 립 상태를 유지하고 강판 표면에 결함이 없는 우수 품질의 아연도금강판(S)을 생산할 수 있으며, 고열 및 좁은 공간에서 립(11)청소작업의 위험성을 제거하고 표면흠집으로 인한 생산휴지의 요인을 제거함으로서 생산성향상, 안전향상, 품질향상 등의 효과를 제공한다.As described above, by automatically removing the zinc fixation or scratches on the surface of the air knife lip 11 using the abrasive cleaning apparatus of the present invention, the galvanized steel sheet of excellent quality maintains a clean lip state at all times and has no defects on the surface of the steel sheet. S) can be produced, and the effect of productivity improvement, safety improvement, and quality improvement are provided by eliminating the risk of cleaning the lip (11) in high heat and narrow spaces and removing the factor of production rest due to surface scratches.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019960065681A KR100293231B1 (en) | 1996-12-14 | 1996-12-14 | Apparatus for wipping and cleaning air knife |
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| Application Number | Priority Date | Filing Date | Title |
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| KR1019960065681A KR100293231B1 (en) | 1996-12-14 | 1996-12-14 | Apparatus for wipping and cleaning air knife |
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| KR19980047222A KR19980047222A (en) | 1998-09-15 |
| KR100293231B1 true KR100293231B1 (en) | 2001-09-17 |
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| KR1019960065681A KR100293231B1 (en) | 1996-12-14 | 1996-12-14 | Apparatus for wipping and cleaning air knife |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100428566B1 (en) * | 2002-04-23 | 2004-04-29 | 주식회사 포스코 | An apparatus for cleaning nozzle tip of air knife of rotary type |
| KR101001707B1 (en) * | 2010-05-18 | 2010-12-15 | 주식회사 삼우에코 | Claaner rip for airknife |
| KR101301045B1 (en) * | 2012-01-02 | 2013-08-28 | 주식회사 삼우에코 | Cleaner rip for airknife with automatic and manual |
| KR101301044B1 (en) | 2012-01-02 | 2013-08-28 | 주식회사 삼우에코 | Cleaner rip for airknife improving foreign removal efficiency |
| CN110760775A (en) * | 2018-07-27 | 2020-02-07 | 宝钢新日铁汽车板有限公司 | Scraper blade assembly for cleaning zinc pot air knife cavity |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020051265A (en) * | 2000-12-22 | 2002-06-28 | 이구택 | Machinery for air knife of the zinc plating equipment |
| KR100880572B1 (en) * | 2002-06-03 | 2009-01-30 | 주식회사 포스코 | Air-knife apparatus for controling the thickness of zinc plated on steel plate with improved blow-ability |
| KR102423244B1 (en) | 2022-06-14 | 2022-07-22 | 주식회사 삼우에코 | Lip cleaner for air knife |
| KR102474919B1 (en) | 2022-10-07 | 2022-12-06 | 주식회사 삼우에코 | External lip cleaner for air knife |
| CN117089795B (en) * | 2023-09-25 | 2024-02-06 | 山东力强钢板有限公司 | Zinc slag scraping device for hot dip galvanized plate and hot dip galvanized plate |
-
1996
- 1996-12-14 KR KR1019960065681A patent/KR100293231B1/en not_active IP Right Cessation
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100428566B1 (en) * | 2002-04-23 | 2004-04-29 | 주식회사 포스코 | An apparatus for cleaning nozzle tip of air knife of rotary type |
| KR101001707B1 (en) * | 2010-05-18 | 2010-12-15 | 주식회사 삼우에코 | Claaner rip for airknife |
| KR101301045B1 (en) * | 2012-01-02 | 2013-08-28 | 주식회사 삼우에코 | Cleaner rip for airknife with automatic and manual |
| KR101301044B1 (en) | 2012-01-02 | 2013-08-28 | 주식회사 삼우에코 | Cleaner rip for airknife improving foreign removal efficiency |
| CN110760775A (en) * | 2018-07-27 | 2020-02-07 | 宝钢新日铁汽车板有限公司 | Scraper blade assembly for cleaning zinc pot air knife cavity |
Also Published As
| Publication number | Publication date |
|---|---|
| KR19980047222A (en) | 1998-09-15 |
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