KR20120089894A - Apparatus for measuring pollution level - Google Patents

Apparatus for measuring pollution level Download PDF

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Publication number
KR20120089894A
KR20120089894A KR1020100130311A KR20100130311A KR20120089894A KR 20120089894 A KR20120089894 A KR 20120089894A KR 1020100130311 A KR1020100130311 A KR 1020100130311A KR 20100130311 A KR20100130311 A KR 20100130311A KR 20120089894 A KR20120089894 A KR 20120089894A
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KR
South Korea
Prior art keywords
measuring
paper
measurement
strip
tension
Prior art date
Application number
KR1020100130311A
Other languages
Korean (ko)
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KR101228747B1 (en
Inventor
권영섭
정현주
Original Assignee
주식회사 포스코
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Priority to KR1020100130311A priority Critical patent/KR101228747B1/en
Publication of KR20120089894A publication Critical patent/KR20120089894A/en
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Publication of KR101228747B1 publication Critical patent/KR101228747B1/en

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    • 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
    • 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
    • G01N21/89—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles
    • G01N21/8901—Optical details; Scanning details
    • 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
    • G01N21/89—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles
    • G01N21/892—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles characterised by the flaw, defect or object feature examined
    • 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
    • G01N21/94—Investigating contamination, e.g. dust
    • 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
    • G01N21/89—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles
    • G01N21/8901—Optical details; Scanning details
    • G01N2021/8908—Strip illuminator, e.g. light tube

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  • Biochemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Pathology (AREA)
  • Immunology (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)

Abstract

The present invention can correspond to the speed of the strip to be transported, and to provide a contamination measuring device capable of maintaining the tension of the measuring paper while continuously supplying the measuring paper, in order to achieve this, in the upper or lower strip (S) A main body 101 disposed; Measurement sheet supply means (110) provided in the main body (101) for continuously supplying the measurement sheet (200); Pressing means (140) for pressing the other surface of the measuring paper so that one surface of the measuring paper (200) contacts the strip when the measuring paper (200) passes the upper or lower portion of the strip (S); And whiteness measuring means 160 for measuring the whiteness of the measurement paper 200 connected to and contacted with the main body 101.

Description

Pollution degree measuring device {APPARATUS FOR MEASURING POLLUTION LEVEL}

The present invention relates to an apparatus for measuring the degree of contamination and residual iron on the surface of the steel sheet, and more particularly, to a degree of contamination measurement apparatus for automatically measuring the degree of contamination and residual iron through the measurement paper supplied continuously.

In general, the surface of the cold rolled cold rolled steel sheet is contaminated with contaminants such as rolling oil. Therefore, in the subsequent process of cold rolling, an alkali solution or the like is used to remove the surface contaminants of the cold rolled steel sheet (this is called a pretreatment process). There is a need.

1 shows a schematic diagram of such a conventional device 10. As shown in FIG. 1, the contaminants on the surface of the strip S include the measuring paper 13 attached to the measuring unit 12, and the measuring unit 12 attached to the measuring paper contacts the strip S. Contaminated samples are measured with a whiteness meter.

However, such a device is to move the measuring unit 12 to the steel sheet during the progress of the strip, so that the results obtained may vary depending on the feed rate of the strip. In addition, since individual measurement sheets are used, supply of measurement sheets is difficult.

2 shows a measuring device 20 for measuring the degree of contamination regardless of the speed of the strip S being conveyed.

This measuring device 20 is fed from the roll 21 on which the Scotch Tape® 24 is rolled past the moving roll 22, the Scotch Tape® 24 being transferred to the traveling strip S on the moving roll 22. Is contacted to wipe the strip (S). Thereafter, the measuring paper 25 supplied from the measuring paper winding roll 23 and the Scotch tape® 24 are adhered to each other to form a test piece 29 with the contaminant attached to the strip S, and then to the contamination measuring device 26. The whiteness is measured by).

In this case, as shown in FIG. 2, the whiteness is determined by sensing through the photosensitive semiconductor 32 that the light emitted from the LED light 31 is reflected on the specimen 29.

However, such a device requires the Scotch Tape® 24 and the measuring sheet 25 to be attached, which limits the tape attachment rate, thereby limiting the speed of the strip S that can be measured. In addition, since the Scotch Tape® 24 and the measurement paper 25 are attached, there is a problem that a large measurement error occurs.

The present invention is to solve the above problems, an object of the present invention is to provide a pollution measuring device that can correspond to the speed of the strip to be transported.

In addition, an object of the present invention is to provide a contamination measurement device that can maintain the tension of the measurement paper while continuously supplying the measurement paper.

Moreover, an object of this invention is to provide the pollution degree measuring apparatus which can measure a residual iron content with the pollution degree measurement.

In addition, an object of the present invention is to provide a simple and accurate pollution degree measuring device.

The present invention is to achieve the above object, and provides a pollution degree measuring device as follows.

The present invention is a body disposed above or below the strip; Measuring sheet supply means which is provided in the main body and continuously supplies the measuring sheet; Pressing means for pressing the other surface of the measuring paper such that one surface of the measuring paper contacts the strip when the measuring paper passes the upper or lower portion of the strip; And whiteness measuring means connected to the main body and measuring whiteness of the measuring sheet in contact with the strip.

Here, the measuring sheet supply means may be a payoff reel in which a strip of measuring paper is wound, and the pressing means may be a cylinder for pressing the measuring strip to contact the strip. Rolls may be mounted on the pressing unit for pressing the measurement sheet in the cylinder.

In addition, in the present invention, the pollution degree measuring device may include a tension unit connected to the main body and having a roll that is moved according to the tension of the measurement paper.

In addition, the pollution degree measuring apparatus of the present invention may be disposed behind the pressing means, and may include residual iron measuring means for measuring the residual iron of the measuring paper in contact with the strip. ,

Further, the tension unit may include a frame in which a guide groove is formed; And a roll mounted on the guide groove, the roll rotatable and movable along the guide groove, and an elastic member mounted on the frame and connected to press the roll.

The tension unit may be configured to bend the measurement flow when the cylinder does not press the measurement paper, and when the cylinder presses the measurement paper, the curved flow is gentle so that the measurement value can maintain a predetermined tension. have.

The present invention may further include a linear actuator connected to the main body to move the main body in a horizontal direction.

The residual iron measuring means may comprise a magnetic field providing means for providing a magnetic field to the measuring paper in the residual iron measuring means, a coil surrounding the measuring paper in the residual iron measuring means, and a sensor connected to the coil.

A tension reel for winding the measured measurement paper is disposed in the main body, and the measurement paper is supplied from the payoff reel of the measurement paper due to the rotation of the driving means connected to the tension reel, and the driving means connected to the tension reel and the pressure Means are connected to the control unit, which can control the driving means and the pressing means in accordance with the speed of movement of the strip.

The present invention can provide a pollution degree measuring apparatus that can correspond to the speed of the strip to be transported through the above configuration.

In addition, the present invention can provide a contamination measurement device that can maintain the tension of the measurement paper while continuously supplying the measurement paper.

In addition, the present invention can provide a pollution degree measuring device capable of measuring the residual iron content in addition to the pollution degree measurement.

In addition, the present invention can provide a simple and accurate pollution degree measuring apparatus.

1 is a schematic diagram of a conventional pollution degree measuring apparatus.
2 is another schematic view of a conventional pollution degree measuring apparatus.
3 is an ordinary state diagram in the pollution degree measuring apparatus of the present invention.
4 is a state diagram when the present invention is measured in the pollution degree measuring device.
5 is a side view of a tension unit of the contamination level measuring device of the present invention.
6 is a schematic diagram of a residual iron measuring instrument of the contamination measuring apparatus of the present invention.

Hereinafter, with reference to the accompanying drawings, it will be described in detail with respect to the embodiment of the rescue chuck.

3 and 4 show state diagrams of the pollution degree measuring apparatus of the present invention.

The present invention includes a main body 101 arranged along the traveling direction of the strip S, a payoff reel 110 as measuring paper supply means connected to the main body 101, and a tension reel 120 as measuring paper winding means. A strip-shaped measuring paper 200 is supported between the off reel 110 and the tension reel 120 while being supported by the rolls 111, 112, 113, 114, and 115. On the measurement paper between the payoff reel 110 and the tension reel 120, a cylinder 140 as a pressing means, a whiteness measuring means 160, a residual iron measuring means 150, and a tension unit 130 as a tension holding means are disposed. do.

In addition, since the linear actuator 170 is mounted on the main body 101, the main body 101 can be moved in a horizontal direction, that is, in the width direction of the strip S. FIG. Accordingly, the contamination level measuring apparatus of the present invention can measure the pollution level at various widthwise positions of the strip S.

The payoff reel 110 is rotatably connected to the main body 101, and a strip-shaped measuring paper 200 is wound in a roll shape. The payoff reel 110 is rotated according to the rotation of the tension reel 120 connected to the driving means (not shown), thereby supplying the measurement paper 200.

The measuring paper 200 coming out of the payoff reel 110 is turned in the roll 111 and passes side by side with the strip S while being supported by the rolls 112, 113. A cylinder 140 as a pressing means is disposed on the upper surface of the measurement paper 200 between the rolls 112 and 113.

The cylinder 140 is rotatable at the front end of the cylinder body 141 fixed to the body 101, the cylinder rod 142, the pressing portion 143 and the pressing portion 143 connected to the end of the cylinder rod 142. And a roll 144 contacting the measurement paper 200, the cylinder rod 142 may be advanced or retracted in the direction of the strip S by the compressed air from the pneumatic supply unit (not shown).

The measurement paper 200 passing through the roll 113 is turned in the roll 114 and passes through the whiteness measuring means 160 fixed to the main body 101. The whiteness measuring means 160 may be formed of a light emitting part emitting light to the measurement paper and a photosensitive semiconductor to reduce the reflected light reflected from the measurement paper as in the related art, and may also determine the whiteness through image capturing.

The measurement paper 200 passing through the whiteness measuring means 160 is supported by the support 165 to prevent bending or bending of the measurement paper 200, which may be an obstacle to the measurement of whiteness. Guide members 166 for guiding 200 are formed at both ends of the support 165.

The measurement paper 200 passing through the whiteness measuring means 160 passes through the residual iron measuring means 150 disposed behind the whiteness measuring means 160.

The specific configuration of the residual iron measuring means 150 is shown in FIG. Residual iron measuring means 150 is a magnet (151, 152) for imparting a magnetic field to the measuring paper 200 passing through it and the coil wrapped around the measuring paper 200 (153), the measuring body 154 connected to the coil, And a display unit 155 for displaying the residual iron measured value measured from the main body. In the measuring body 154, the residual iron measuring sensor measures a change in electric current due to iron attached to the measuring paper 200 in the magnetic field and displays it on the display unit 155.

On the other hand, the measurement paper 200 passed through the residual iron measuring means 150 is changed in direction while passing through the roll 115, and wound around the tension reel 120 past the tension unit 130, which is a tension maintaining means.

The specific configuration of the tension unit 130 is shown in FIG. As shown in FIG. 5, the tension unit includes a frame 132 having a groove 131 formed in a vertical direction; A roll 133 mounted in the groove; And a support part 134 supporting the roll 133, and an elastic member 135 is disposed between the frame 132 and the support part 134.

In the tension unit 130, a spring may be used as the elastic member 135. In this case, the spring may have a predetermined spring constant, and may be deformed when a predetermined or more tension is applied to the measurement paper 200. In this case, the measurement paper 200 may be pressurized and bent to impart tension to the measurement paper 200.

The measurement paper 200 passing through the tension unit 130 is wound on the tension roll 120, and a driving means (not shown) is mounted on the tension roll 120 to adjust the movement of the entire measurement paper 200.

3 shows a state in which no measurement is performed, that is, the cylinder 140 as the pressing means does not press the measuring paper 200 passing through the lower portion of the cylinder to the strip S side. In this state, the measurement paper 200 does not contact the strip S, and the roll 133 of the tension unit 130 presses the measurement paper 200 downward so as to give a predetermined tension to the measurement paper 200. .

4 shows the state in which the measuring paper 200 wipes the surface of the strip S by pressing the measuring paper 200 through which the cylinder 140 as the pressing means passes the lower part of the cylinder to the side of the strip S. It is shown.

As shown in FIG. 4, when the cylinder 140 presses the measurement paper 200, the measurement paper 200 is tensioned, and thus the tension unit 130 may be returned to its original position, and thus, the measurement paper 200 ) Tension can be maintained at a certain level. Since the measurement paper 200 is formed of paper, there is a risk of tearing due to tension, so the maintenance of the tension is important in the contamination measuring device.

Meanwhile, the driving means (not shown) of the cylinder 140, the linear actuator 170, and the tension reel 120 may be connected to a control unit (not shown), and the control unit may be automatically or in accordance with the speed of the strip S. In accordance with the manipulation of the cylinder 140, the linear actuator 170, the drive means (not shown) of the tension reel 120 can be controlled.

That is, by adjusting the driving means of the tension reel 120, it is possible to adjust the speed of the measuring paper 200, which can be made to wipe the strip (S) with a large area of the measuring paper 200, on the contrary wiping only a portion You can also

In addition, by controlling the cylinder 140, it is possible to control the time that the measurement paper 200 contacts the strip S, that is, the time for wiping. Thus, it is possible to wipe the strips S of the same area irrespective of the speed of the strips S.

Moreover, by adjusting the linear actuator 170, the main body 101 can be moved in the width direction of the strip S, and accordingly, it is possible to measure the contamination degree in various positions of the strip S. As shown in FIG.

Through the above embodiment, the present invention can adjust the wiping time or the wiping area of the strip 200 and the wiping area corresponding to the speed of the strip (S).

In addition, the present invention is equipped with a residual iron measuring device, it is possible to obtain information on the iron attached to the strip (S) as well as the whiteness, which can be used as a reference to the post-process and an evaluation of the previous process.

The present invention makes it possible to obtain information at various positions of the strip S without having to stop the strip S, and thus to provide accurate information on the degree of contamination of the strip S.

101: main body 110: pay-off reel
120: tension reel 130: tension unit
140: cylinder 150: residual iron measuring means
160: whiteness measuring means 170: linear actuator
200: measuring paper

Claims (9)

A main body 101 disposed above or below the strip S;
Measurement sheet supply means (110) provided in the main body (101) for continuously supplying the measurement sheet (200);
Pressing means for pressing the other surface of the measurement paper so that one surface of the measurement paper 200 contacts the strip S when the measurement paper 200 passes the upper or lower portion of the strip S; And
And a whiteness measuring means (160) connected to the main body (101) behind the pressing means (140) and measuring the whiteness of the measurement paper (200) in contact with the strip (S). The method of claim 1,
The measurement sheet supply means 110 is a pay-off reel 110 is wound around the strip of measurement paper,
The pressing means is a cylinder 140 for pressing the measuring paper 200 to contact the strip,
Pollution degree measuring device comprising a roll (144) is mounted on the pressing portion (143) for pressing the measurement paper 200 in the cylinder (140). The method according to claim 1 or 2,
And a tension unit (130) connected to the main body (101) and having a roll that is moved according to the tension of the measurement paper (200). The method according to claim 1 or 2,
And a residual iron measuring means (150) disposed in front of or behind the whiteness measuring means (160) and measuring residual iron of the measuring paper (200) in contact with the strip (S). The method of claim 3, wherein
The tension unit 130 may include a frame 132 having a guide groove 131 formed therein; A roll 133 mounted to the guide groove 131 and movable and rotatable along the guide groove 131; And an elastic member (135) mounted to the frame (132) and connected to press the roll (133). The method of claim 5, wherein
The tension unit 130 bends the flow of the measurement paper 200 when the cylinder 140 does not press the measurement paper 200,
When the cylinder 140 presses the measurement paper 200, the curved flow is gentle so that the measurement value 200 is configured to maintain a predetermined tension. The method according to claim 1 or 2,
It is connected to the main body 101, pollution degree measuring apparatus further comprises a linear actuator (170) for moving the main body 101 in the horizontal direction. The method of claim 4, wherein
The residual iron measuring means comprises a magnetic field providing means for providing a magnetic field to the measuring paper in the residual iron measuring means, a coil surrounding the measuring paper in the residual iron measuring means, and a sensor connected to the coil. The method according to claim 1 or 2,
The body is provided with a tension reel for winding the measurement paper, the measurement paper is supplied from the pay-off reel of the measurement paper due to the rotation of the drive means connected to the tension reel,
Driving means connected to the tension reel and the pressing means is connected to the control unit,
And the control unit controls the driving means and the pressurizing means according to the moving speed of the strip.
KR1020100130311A 2010-12-17 2010-12-17 Apparatus for measuring pollution level KR101228747B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020100130311A KR101228747B1 (en) 2010-12-17 2010-12-17 Apparatus for measuring pollution level

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020100130311A KR101228747B1 (en) 2010-12-17 2010-12-17 Apparatus for measuring pollution level

Publications (2)

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KR20120089894A true KR20120089894A (en) 2012-08-16
KR101228747B1 KR101228747B1 (en) 2013-01-31

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Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200237474Y1 (en) * 1996-08-23 2001-11-22 이구택 Automatic degreasing control device
KR100279510B1 (en) * 1996-09-25 2001-02-01 이구택 Pollution degree measuring device of strip surface
KR100494110B1 (en) * 2002-08-26 2005-06-13 주식회사 포스코 Whiteness detecting device for steel strip
KR20050063485A (en) * 2003-12-22 2005-06-28 재단법인 포항산업과학연구원 Measuring apparatus for steel sheet contaminants

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