KR19990055104A - Shape measurement method of wire rod - Google Patents
Shape measurement method of wire rod Download PDFInfo
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- KR19990055104A KR19990055104A KR1019970075011A KR19970075011A KR19990055104A KR 19990055104 A KR19990055104 A KR 19990055104A KR 1019970075011 A KR1019970075011 A KR 1019970075011A KR 19970075011 A KR19970075011 A KR 19970075011A KR 19990055104 A KR19990055104 A KR 19990055104A
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- wire rod
- shape
- sensors
- pair
- straight line
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/28—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring contours or curvatures
- G01B7/281—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring contours or curvatures for measuring contour or curvature along an axis, e.g. axial curvature of a pipeline or along a series of feeder rollers
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
- G01B7/04—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness specially adapted for measuring length or width of objects while moving
- G01B7/048—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness specially adapted for measuring length or width of objects while moving for measuring width
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/12—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring diameters
- G01B7/125—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring diameters of objects while moving
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/10—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring diameters
- G01B21/12—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring diameters of objects while moving
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
- G01N21/952—Inspecting the exterior surface of cylindrical bodies or wires
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/0094—Sensor arrays
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
본 발명은 압연이 종료된 선재 소재의 단면형상을 온라인상에서 측정하여 최종적으로 사상되는 압연스탠드의 롤 간극을 정확하게 조정하여 선재의 단면을 원형에 가깝게 제조할 수 있게한 선재의 형상 측정방법에 관한 것으로,The present invention relates to a method for measuring the shape of a wire rod which enables the manufacture of a cross-section of the wire rod to be close to a circular shape by accurately measuring the cross-sectional shape of the finished wire rod on-line and precisely adjusting the roll gap of the rolling stand to be finally mapped. ,
즉, 지지프레임의 상하부에 상호 수평상태에서 일직선을 유지하게 상부지지대와 하부지지대를 적정 간격으로 설치하되 이 하부지지대를 상하로 이동 가능하게 설치하고, 상기 상하부지지대의 대향면에 선재의 거리측정이 가능하게 발신부와 수신부로된 한쌍의 센서를 각기 일직선상에 위치하게 설치하되 각 센서를 일직선을 유지한 상태에서 동기신호에 의해 동시에 슬라이딩이 가능하게 상하측 이송부재에 지지되게 하며, 상기 상하부지지대에 설치된 한쌍의 센서 사이를 선재(W)가 지날 때 이의 직경방향을 따라 한쌍의 센서를 이송되게 하여 그 출력되는 거리 신호로부터 선재의 형상을 얻게된 것이다.That is, the upper support and the lower support are installed at appropriate intervals so that the upper and lower portions of the support frame are kept horizontal in a horizontal state, and the lower support is installed to be movable up and down, and the distance measurement of the wire rod is opposed to the upper and lower support surfaces. Where possible, a pair of sensors consisting of a transmitter and a receiver are installed in a straight line, but each sensor is held in a straight line so as to be supported by the upper and lower conveying members so as to be slid simultaneously by a synchronization signal. When the wire rod (W) is passed between a pair of sensors installed in the pair of sensors to be transferred along its radial direction to obtain the shape of the wire rod from the output distance signal.
Description
본 발명은 선재의 형상 측정방법, 더욱 상세하게는 압연이 종료된 선재 소재의 단면형상을 온라인상에서 측정하여 최종적으로 사상되는 압연스탠드의 롤 간극을 정확하게 조정하여 선재의 단면을 원형에 가깝게 제조할 수 있게한 선재의 형상 측정방법에 관한 것이다.The present invention can measure the shape of the wire rod, and more particularly, the cross-sectional shape of the finished wire rod material can be measured on-line to precisely adjust the roll gap of the rolling stand that is finally mapped to manufacture the cross-section of the wire rod closer to a circle. The present invention relates to a method for measuring the shape of wire rods.
일반적으로, 선재의 압연시 그 단면을 원형상으로 제조하는 기술이 필수적임은 물론 선재의 품질을 좌우하는 척도가 되고 있다.In general, the technology of manufacturing the cross section of the wire rod in the shape of a circle when rolling is essential, as well as a measure of the quality of the wire rod.
선재의 형상을 측정하기 위한 종래의 기술은, 광원과 CCD카메라로된 센서를 선재의 원주방향을 따라 360。로 회전시키면서 측정 하였으므로, 센서의 회전을 위한 구동장치와 전원공급은 물론 센서로부터 신호를 인출하기 위한 슬립링 등의 설비를 필요로 하게되어 구조가 복잡하였고, 상기 센서의 회전과정에서 유동이 발생되거나 슬립링의 노화현상에 의하여 접촉저항의 증가 등으로 측정오차가 발생되는 문제점이 있었다.The conventional technique for measuring the shape of the wire rod is measured by rotating the light source and the CCD camera sensor at 360 ° along the circumferential direction of the wire rod, so that signals from the sensor as well as the driving device and power supply for the rotation of the sensor are measured. It requires a facility such as a slip ring for drawing out, which is complicated in structure, and there is a problem in that a measurement error occurs due to an increase in contact resistance due to flow or aging of the slip ring.
또한 상기 센서의 회전에 의한 측정방법은 선재가 고정된 상태에서 측정이 가능하였으므로, 선재의 현상 측정에 소요되는 시간에 비례하여 생산성이 떨어짐은 물론 연속적으로 측정이 어려운 문제점도 있었다.In addition, the measurement method by the rotation of the sensor was able to measure in a fixed state of the wire rod, there is a problem that it is difficult to continuously measure the productivity as well as the productivity in proportion to the time required to measure the phenomenon of the wire rod.
본 발명은 위와 같은 종래의 선재 형상 측정방법의 문제점을 감안하여 안출한 것으로서, 그 목적은 상하 일직선상에 발신부와 수신부를 갖는 한쌍의 센서를 적정 각도를 유지하게 적어도 복수개 이상 설치하되 각 쌍의 센서 사이로 선재를 통과시켜 측정할 수 있는 선재의 형상 측정방법을 제공하는 것이다.The present invention has been made in view of the problems of the conventional wire shape measurement method as described above, the object of which is to install a pair of sensors having a transmitter and a receiver on a straight line up and down to maintain an appropriate angle, but each pair It is to provide a method for measuring the shape of the wire rod that can be measured by passing the wire rod between the sensors.
이러한 목적을 달성하기 위한 본 발명은, 지지프레임의 상하부에 상호 수평상태에서 일직선을 유지하게 상부지지대와 하부지지대를 적정 간격으로 설치하되 이 하부지지대를 상하로 이동 가능하게 설치하고, 상기 상하부지지대의 대향면에 선재의 거리측정이 가능하게 발신부와 수신부로된 한쌍의 센서를 각기 일직선상에 위치하게 설치하되 각 센서를 일직선을 유지한 상태에서 동기신호에 의해 동시에 슬라이딩이 가능하게 상하측 이송부재에 지지되게 하며, 상기 상하부지지대에 설치된 한쌍의 센서 사이를 선재(W)가 지날 때 이의 직경방향을 따라 한쌍의 센서를 이송되게 하여 그 출력되는 거리 신호로부터 선재의 형상을 얻게됨을 특징으로 한다.The present invention for achieving this object, the upper support and the lower support is installed at appropriate intervals so as to maintain a straight line in the horizontal state at the top and bottom of the support frame to install the lower support to move up and down, the upper and lower support Upper and lower conveying members are installed so that the distance between wires can be measured on the opposite surface, and a pair of sensors consisting of a transmitter and a receiver are positioned in a straight line, but they can be simultaneously slid by a synchronization signal while keeping each sensor in a straight line. And a pair of sensors along the radial direction thereof when the wire rod (W) passes between the pair of sensors installed on the upper and lower supports to obtain a shape of the wire rod from the output distance signal.
도 1은 본 발명의 일실시예의 선재 형상 측정장치를 나타낸 구성도,1 is a block diagram showing a wire shape measuring apparatus of an embodiment of the present invention,
도 2는 상기 하나의 측정장치에 의한 선재 형상 측정결과를 나타낸 구성도,2 is a configuration diagram showing a wire rod shape measurement result by the one measuring device;
도 3은 본 발명의 측정장치의 설치상태를 개략적으로 나타낸 구성도,3 is a configuration diagram schematically showing an installation state of the measuring device of the present invention;
도 4a 및 도 4b는 본 발명의 복수의 측정장치에 의한 선재 형상 측정상태와 그 측정결과 예시도,4a and 4b is an exemplary view of the wire shape measurement state and the measurement results by a plurality of measuring devices of the present invention,
도 5 및 도 6은 본 발명의 다른 실시예의 선재 형상 측정방법과 그 설치상태 예시도이다.5 and 6 are diagrams illustrating a wire rod shape measuring method and an installation state of another embodiment of the present invention.
< 도면의 주요부분에 대한 부호의 설명 ><Description of Symbols for Major Parts of Drawings>
10 : 지지프레임 11 : 슬라이더10: support frame 11: slider
20 : 상부지지대 20' : 하부지지대20: upper support 20 ': lower support
30, 30' : 센서 40, 40' : 이송부재30, 30 ': sensor 40, 40': transfer member
이하, 본 발명의 선재의 형상 측정방법을 첨부도면을 참조하여 설명하면 다음과 같다.Hereinafter, the shape measurement method of the wire rod of the present invention will be described with reference to the accompanying drawings.
도 1 및 도 2는 본 발명의 일실시예의 선재 형상 측정장치와 그 측정장치에 의한 선재 형상 측정결과를 나타낸 구성도이고, 도 3은 본 발명의 측정장치의 설치상태를 개략적으로 나타낸 구성도로서, 지지프레임(10)의 상하부에 상호 수평상태에서 일직선을 유지하게 상부지지대(20)와 하부지지대(20')를 적정 간격으로 설치하되 이 하부지지대(20')는 상기 지지프레임(10)에 부설된 슬라이더(11)에 의해 상하로 이동 가능하게 설치되어 있다.1 and 2 is a configuration diagram showing a wire rod shape measurement apparatus and a wire rod shape measurement results by the measuring device of an embodiment of the present invention, Figure 3 is a schematic diagram showing the installation state of the measuring device of the present invention The upper support 20 and the lower support 20 'are installed at appropriate intervals so as to maintain a straight line at the upper and lower sides of the support frame 10, and the lower support 20' is attached to the support frame 10. The slider 11 is provided to be movable up and down.
상기 상하부지지대(20)(20')의 대향면에는 선재의 거리측정이 가능하게 발신부와 수신부로된 한쌍의 센서(30)(30')를 각기 일직선상에 위치하게 설치하되, 각 센서(30)(30')는 일직선을 유지한 상태에서 동기 신호에 의해 동시에 슬라이딩이 가능하게 상하측 이송부재(40)(40')에 지지되어 있다.On the opposite surface of the upper and lower supporters 20 and 20 ', a pair of sensors 30 and 30', each of which is a transmitter and a receiver, may be installed in a straight line so as to measure the distance of the wire rod. 30 and 30 'are supported by the upper and lower transfer members 40 and 40' such that they can be slid at the same time by the synchronization signal in a straight line.
그러므로, 상하부 센서(30)(30')간의 설정거리(L)는 지지프레임(10)의 슬라이더(11)에 지지된 하부지지대(20')의 고정위치에 따라 달라지게 되므로, 다양한 직경의 선재에 대해 측정이 가능하다.Therefore, since the set distance L between the upper and lower sensors 30 and 30 'varies depending on the fixing position of the lower support 20' supported by the slider 11 of the support frame 10, wire rods of various diameters are used. Can be measured for.
상하부지지대(20)(20')에 설치된 한쌍의 센서(30)(30') 사이를 선재(W)가 지날 때 이의 직경방향을 따라 이송부재(40)(40')에 의해 상기 한쌍의 센서를 이송되게 하면, 이때 출력되는 거리신호로부터 선재의 형상을 얻게된다(도 2참조).When the wire W passes between the pair of sensors 30 and 30 'installed on the upper and lower supporters 20 and 20', the pair of sensors are moved by the transfer members 40 and 40 'along the radial direction thereof. In this case, the shape of the wire rod is obtained from the distance signal output at this time (see FIG. 2).
위의 경우는 한쌍의 센서를 어느 한 지점에서 측정한 선재의 형상이며, 이때 일반적인 거리측정센서는 측정위치 및 각도에 따라 측정이 부정확하거나 곤란한 상황이 발생되므로 측정의 신뢰도를 높이기 위해서는 서로 다른 위치와 각도상에서 측정하는 것이 바람직하며, 이러한 측정의 신뢰성을 높이기 위해 본 발명은 도 3에서와 같이 적어도 복수곳에 센서(30)(30')를 직교되게 배치하여 측정하였다.In the above case, the shape of the wire rod measured by a pair of sensors at any one point. In this case, a general distance measuring sensor has an inaccurate or difficult situation depending on the measurement position and angle. It is preferable to measure at an angle, and in order to increase the reliability of the measurement, the present invention measured by arranging the sensors 30 and 30 'at right angles to at least a plurality of places as shown in FIG.
도 4a 및 도 4b는 본 발명의 복수의 측정장치에 의한 선재 형상 측정상태와 그 측정결과 예시도로서, 우선 선재의 크기에 따라 복수곳의 지지프레임(10)에 설치된 한쌍의 센서(30)(30') 거리를 조절하되 각 위치의 센서는 상호 90。로 교차되게 배치하고, 선재(W)의 통과방향에 대해 그 단면방향으로 향하게 각 쌍의 센서(30)(30')를 상하측 이송부재(40)(40')에 의해 동기 상태로 이송시키면서 거리를 측정하여 측정된 결과를 합성함에 따라, 어느 한쪽의 센서에 의해 측정이 미흡한 형상을 나머지 다른쪽으로부터 구하게 되어 선재의 단면형상을 정확하게 측정할 수 있다.4A and 4B are diagrams illustrating an example of a wire shape measurement state and a measurement result by a plurality of measuring devices of the present invention. First, a pair of sensors 30 installed on a plurality of support frames 10 according to the size of the wire rod ( 30 ') the distance is adjusted, but the sensors of each position are arranged to cross each other at 90 degrees, and each pair of sensors 30, 30' are conveyed up and down in the cross-sectional direction with respect to the passing direction of the wire rod (W). By synthesizing the measured results by measuring the distance while transferring them in a synchronous state by the members 40 and 40 ', the shape which is insufficient for measurement by one sensor is obtained from the other side, so that the cross-sectional shape of the wire rod can be accurately obtained. It can be measured.
한편, 도 5는 본 발명의 다른 실시예를 나타낸 것으로, 레이저 빔을 발생시키는 레이저(1)와 이를 수신하는 광섬유(2)로된 한쌍의 센서를 그 사이를 통과하는 선재(W)에 대해 각각 45。 간격으로 4곳에 설치하여 각쌍의 센서를 45。범위내에서 회전 또는 직선상에서 이송시키면서 선재의 형상을 측정하게 된 것이다.On the other hand, Figure 5 shows another embodiment of the present invention, respectively for the wire (W) passing between a pair of sensors made of a laser (1) for generating a laser beam and the optical fiber (2) receiving the It is installed at four places at intervals of 45 ° to measure the shape of wire rod while each pair of sensors is rotated or transferred in a straight line within 45 ° range.
상기 레이저와 광섬유로된 각쌍의 센서는 상호간에 간섭을 주지 않도록 선재의 길이방향을 따라 적정간격을 유지되게 설치하고 레이저와 광섬유를 각기 분리 가능하게 설치한다(도 6참조).Each pair of sensors made of the laser and the optical fiber is installed so as to maintain an appropriate interval along the longitudinal direction of the wire rod so as not to interfere with each other, and the laser and the optical fiber are separately installed (see FIG. 6).
그러므로, 선재의 형상을 측정할 때 피 계측물체인 선재가 존재하는 부분의 레이저 빔은 선재에 의해 반사되면서 소멸하게 되고, 선재가 존재하지 않는 부분의 레이저 빔 만이 광섬유에 수신되므로 레이저 빔의 길이를 계측하여 선재의 폭을 측정하게 된다.Therefore, when measuring the shape of the wire rod, the laser beam of the part where the wire rod as the measurement object exists is reflected by the wire rod and is extinguished. Since only the laser beam of the portion without the wire rod is received by the optical fiber, By measuring the width of the wire rod.
이러한 작용을 하는 각 센서에 의해 그 회전시작으로부터 회전종료지점까지 약 45。범위로 이동시켜 측정하되 각각의 측정된 형상데이터를 조합함에 따라, 360。로 회전시키지 않고도 선재의 전체 형상을 측정하게 된다.Each sensor that performs this action moves from the start of rotation to the end of rotation in the range of 45 ° and measures it. By combining each measured shape data, the overall shape of the wire rod is measured without rotating at 360 °. .
이와 같은 본 발명의 선재 형상 측정방법은, 선재를 측정하기 위한 측정장치를 간편하게 제작함과 아울러 측정오차의 발생율을 최소화하여 정확한 계측치를 구할 수 있는 효과가 있으며, 선재의 압연 과정에서 측정이 가능하여 생산성을 높일 수 있는 장점도 있다.The wire rod shape measuring method of the present invention has the effect of easily manufacturing a measuring device for measuring wire rods and minimizing the occurrence of measurement errors to obtain accurate measurement values. It also has the advantage of increasing productivity.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019970075011A KR100325328B1 (en) | 1997-12-27 | 1997-12-27 | Method for measuring shape of wire rod |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019970075011A KR100325328B1 (en) | 1997-12-27 | 1997-12-27 | Method for measuring shape of wire rod |
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| KR19990055104A true KR19990055104A (en) | 1999-07-15 |
| KR100325328B1 KR100325328B1 (en) | 2002-05-09 |
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| KR101674758B1 (en) * | 2014-12-22 | 2016-11-10 | 주식회사 포스코 | Apparatus for measuring size of material and Rolling system having the same |
| KR101561127B1 (en) * | 2015-03-18 | 2015-10-19 | 한국지질자원연구원 | Apparatus for measuring diameter and length of cylindrical sample |
| KR101769675B1 (en) * | 2015-09-07 | 2017-08-18 | 장천덕 | Tree calipers |
| KR102045652B1 (en) | 2017-12-26 | 2019-11-15 | 주식회사 포스코 | Determination apparatus for heat flux coefficient of run-out table based artificial intelligence |
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