KR101786646B1 - thickness measuring apparatus of sprayed paint - Google Patents

thickness measuring apparatus of sprayed paint Download PDF

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Publication number
KR101786646B1
KR101786646B1 KR1020150159838A KR20150159838A KR101786646B1 KR 101786646 B1 KR101786646 B1 KR 101786646B1 KR 1020150159838 A KR1020150159838 A KR 1020150159838A KR 20150159838 A KR20150159838 A KR 20150159838A KR 101786646 B1 KR101786646 B1 KR 101786646B1
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South Korea
Prior art keywords
link
main body
measuring
coating film
bracket
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KR1020150159838A
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Korean (ko)
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KR20170056317A (en
Inventor
강서린
윤선웅
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(유)블루에스피
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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
    • G01B21/02—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 length, width, or thickness
    • G01B21/08—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 length, width, or thickness for measuring thickness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
    • B25J5/00—Manipulators mounted on wheels or on carriages
    • B25J5/007—Manipulators mounted on wheels or on carriages mounted on wheels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/26—Pigs or moles, i.e. devices movable in a pipe or conduit with or without self-contained propulsion means
    • F16L55/28—Constructional aspects
    • F16L55/30—Constructional aspects of the propulsion means, e.g. towed by cables
    • F16L55/32—Constructional aspects of the propulsion means, e.g. towed by cables being self-contained
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
    • G01B11/06—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness for measuring thickness ; e.g. of sheet material
    • G01B11/0616—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness for measuring thickness ; e.g. of sheet material of coating
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B15/00—Measuring arrangements characterised by the use of electromagnetic waves or particle radiation, e.g. by the use of microwaves, X-rays, gamma rays or electrons
    • G01B15/02—Measuring arrangements characterised by the use of electromagnetic waves or particle radiation, e.g. by the use of microwaves, X-rays, gamma rays or electrons for measuring thickness
    • 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
    • G01B7/06—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness
    • G01B7/10—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness using magnetic means, e.g. by measuring change of reluctance
    • G01B7/105—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness using magnetic means, e.g. by measuring change of reluctance for measuring thickness of coating
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V9/00—Prospecting or detecting by methods not provided for in groups G01V1/00 - G01V8/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L2101/00—Uses or applications of pigs or moles
    • F16L2101/30—Inspecting, measuring or testing

Abstract

The tube internal coating film measuring apparatus of the present invention comprises: a tubular measuring body portion having a predetermined length; A plurality of first and second brackets respectively provided on both end side outer circumferential surfaces of the measurement main body part; a first conveying member slidably installed adjacent to the first bracket of the measurement main body; And a first connection link connecting the first link and the first bracket, wherein the first link is provided adjacent to the second bracket of the measurement main body, A second link that is rotatably installed on an outer circumferential surface of the second transfer member and has a second wheel installed at an end thereof and a second connection link that connects the second link and the second bracket; An in-tube delivery support unit installed inside the measurement main body to relatively move the first and second delivery members; A driving unit installed in the measuring main body and moving the measurement main body part forward and backward along the inner surface of the tube to measure the coating film; And a coating film measurement unit installed on one side of the measurement body to measure a coated film applied to the inside of the tube.

Figure R1020150159838

Description

[0001] The present invention relates to a film thickness measuring apparatus,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an apparatus for measuring a film inside a tube, and more particularly, to a apparatus for measuring a film inside a tube for measuring a state of a film after coating the inside of the tube.

In general, coating operation in ship drying process should show excellent spray pattern and small amount of paint dust emission per used paint, stable atomization at set paint pressure, stable coating thickness, and aesthetic appearance .

In such a coating, the coating state may not be stable due to the coating conditions and the surrounding environment. Therefore, it is necessary to measure the coating film to check the coating state. The conventional film thickness measuring apparatus is divided into a humidity film thickness measuring apparatus and a dry film thickness measuring apparatus.

The humidity film thickness measuring device measures the thickness of a coating film by inserting a measuring gauge having a graduated mark on both edges of a metal plate having sharp edges, into a non-dried humidity film during spraying. Such a measurement gauge is difficult to be used for coating film measurement of a hull, is used in a sample test for a coating test, and may be used for coating film measurement of a specific part. In addition, the dry film thickness measuring device measures the thickness of a dry film completely dried after the painting operation, and generally has an electromagnetic induction type and a high frequency eddy current type.

However, it is relatively difficult to measure the film state inside the pipe using a conventional dry film measuring apparatus. Especially, when the length of the pipe is relatively long and the pipe diameter is small, it is difficult to measure the film, .

In view of this point, Korean Patent Laid-Open No. 10-2009-0092470 discloses a wireless film measurement device using a radio shipbord. Korean Patent Laid-Open Publication No. 1997-0012926 discloses a method and apparatus for measuring film thickness.

It is difficult to measure the coated film applied inside the narrow tube.

Korea Patent Publication No. 10-2009-0092470

It is an object of the present invention to provide a method and apparatus for measuring a coating film applied inside a pipe used in a ship, a marine plant, an industrial facility, etc., And it is an object of the present invention to provide a coating film thickness measuring apparatus and a coating film thickness measuring apparatus which can prevent a safety accident that may occur during coating film measurement in a tube.

Another object of the present invention is to provide a coating film measuring device in a pipe which can improve the operating efficiency of the equipment because it is possible to measure coating films of various sizes.

According to an aspect of the present invention, there is provided a coating film thickness measuring apparatus including: a tubular measuring body having a predetermined length;

 A plurality of first and second brackets respectively provided on both end side outer circumferential surfaces of the measurement main body part; a first conveying member slidably installed adjacent to the first bracket of the measurement main body; And a first connection link connecting the first link and the first bracket, wherein the first link is provided adjacent to the second bracket of the measurement main body, A second link that is rotatably installed on an outer circumferential surface of the second transfer member and has a second wheel installed at an end thereof and a second connection link that connects the second link and the second bracket; An in-tube delivery support unit installed inside the measurement main body to relatively move the first and second delivery members;

A driving unit installed in the measuring main body and moving the measurement main body part forward and backward along the inner surface of the tube to measure the coating film;

And a coating film measurement unit installed on one side of the measurement body for measuring a coated film applied to the inside of the tube.

In the present invention, the drive unit may include a first drive link rotatably installed on a third bracket provided on an outer circumferential surface of the main body, a drive wheel hinged to the first drive link and driven by a motor at an end thereof And an elastic member provided at a hinge connection portion between the third bracket and the first and second drive links for elastically biasing the first and second drive links in a direction in which the first and second drive links are opened. Preferably, the elastic member uses a torsion spring.

The coating film measuring device in the pipe of the present invention can accurately measure the coating film inside the pipe which can not enter the operator and can measure the coating film inside the pipe having various diameters. In addition, since coating film information inside the tube can be stored and data can be formed, the reliability of coating film formation can be enhanced.

1 is a cross-sectional view of a coating film thickness measuring apparatus according to the present invention,
FIG. 2 is a cross-sectional view of an apparatus for measuring a film in a pipe according to the present invention,
FIG. 3 is a left side view of a coating film thickness measuring apparatus according to the present invention,
FIG. 4 is a right side view of the apparatus for measuring a film in the pipe according to the present invention,
FIG. 5 is a partially cutaway perspective view of the apparatus for measuring a film in a pipe according to the present invention,
6 is a security sectional view showing a state of use of a coating film measuring device in a pipe according to the present invention.

The apparatus for measuring a coated film inside a pipe according to the present invention is for measuring a coated film in a pipe which is difficult for an operator to enter, and one embodiment thereof is shown in FIG. 1 to FIG.

Referring to the drawings, a coating film thickness measuring apparatus 10 according to the present invention is for measuring a coated film 110 applied inside a tube 100 and includes a tubular measuring body 20 having a predetermined length And an in-tube feed support unit (20) installed in the measurement main body (20) and supporting the measurement main body (20) so that the measurement main body unit (20) A driving unit 60 for transferring the measurement main body 20 installed in the measurement main body 20 and supported by the in-pipe conveyance support unit 30 to a position where the coating film is to be measured, And a coating film measuring unit 70 installed at one side of the measuring body 20 for measuring a coated film applied inside the tube.

The apparatus for measuring a coating film inside a pipe according to the present invention having the structure as described above will be described in detail as follows.

The measuring body 20 of the film thickness measuring apparatus 10 in the pipe according to the present invention is formed into a cylindrical shape having a space portion therein and has a predetermined length. The measurement main body portion 20 is not limited to the above-described embodiment, and can be any structure that does not damage the coating film inside the tube and has a smooth movement.

The in-pipe feed and support unit 30 is installed in the measurement main body 20 so that the measurement main body 20 can be moved along the inside of the pipe 100. As shown in FIGS. 1 to 5, A plurality of first and second brackets 31 and 41 are formed on both outer circumferential surfaces of the measurement main body 20 in the circumferential direction of the measurement main body 20, A first conveying member 32 is slidably installed on the measurement main body 20 adjacent to the bracket 31 and a first wheel 33 is installed on an outer circumferential surface of the first conveying member 32 The first links 34 are rotatably installed at positions corresponding to the first brackets 31. [ The first link 34 is rotatably connected to the first bracket 34 by first connection links 35 so that the angle of the first link 34 is adjusted when the first transfer member 32 is moved forward and backward. (Rotated in the direction close to and away from the measurement main body).

A second conveying member 42 is slidably installed on the measuring main body 20 adjacent to the second bracket 41 of the measuring main body 20 and an outer peripheral surface of the second conveying member 42 The second links 44 are provided at the positions corresponding to the second brackets 41 so as to be rotatable. The second link 44 is rotatably connected to the second bracket 41 and the second link 44 so as to be rotatable about the second link 44 at the time of forward and backward movement of the second transfer member 42. [ The angle is adjusted.

A lead screw 51 driven by a motor 50 is installed in the measuring main body 20 and a first member 52 threadedly coupled to the lead screw 51 is inserted into the first conveying member 51, And the lead screw is connected to the second transfer member 42 and the second connection member 55 by a second member 54 screwed to the second transfer member 42 by the first connection member 32 and the first connection 53, Lt; / RTI > The first and second connection points 53 and 55 pass through a guide slot formed in the measurement main body 20 for connection with the first and second transfer members 32 and 42, The first member 52 and the second member 54 are formed in such a manner that the threaded portion of the first member 52 and the threaded portion of the second member 54 are threadedly coupled to each other, They are moved in opposite directions.

The driving unit 60 includes a first driving link 62 rotatably mounted on a third bracket 61 provided on an outer circumferential surface of the measuring main body 20, A second driving link 65 connected to the first and second driving links 62 and 65 and having a driving wheel 64 driven by a driving motor 63 at an end thereof, And an elastic member 66 that is provided at a portion of the first drive link 61 and biases the first and second drive links 62 and 65 in a direction in which the first and second drive links 62 and 65 are extended. The elastic member may be a torsion spring or a shock absorber.

The coating film measuring unit 70 is provided on the end side of the measuring main body 20 and measures the coating film inside the tube 100. The film measuring unit 70 includes a forward and backward member 72 And a proximity sensor 73 and a film thickness measurement sensor 74 provided at an end of the forward / backward member 72. [ And a control unit 80 for controlling the actuator, the driving motor, and the motor, and for storing information measured by the film thickness measurement sensor 74.

The actuator 71 is provided with a forward / backward member 72 slidably installed in a housing in a direction perpendicular to the longitudinal direction of the tube 100, a rack formed on the forward / backward member 72, Lt; RTI ID = 0.0 > and / or < / RTI > The actuator is not limited to the above-described embodiment, and may be a screw jug, a cylinder, a solenoid, or the like.

As the film thickness measuring sensor, a sensor of a magnetic induction type, a high frequency eddy current type, a beam type (split beam type), and a micro-X-ray analysis method can be used.

The operation of the tube internal coating film measuring apparatus according to the present invention constructed as described above will be described below.

In order to measure the coating film inside the pipe formed with the coating film measuring apparatus 10 according to the present invention, first, as shown in FIG. 6, the motor 51 of the pipe conveying and supporting unit 30 is driven, The screw 51 is rotated to bring the first and second conveying members 32 and 43 in the collecting direction. The first link 34 and the second link 44 are rotated so as to be brought into close contact with the outer circumferential surface of the measuring main body 20 and the first and second driving links 62 and 62 of the driving unit 60 65 can be folded together.

In this state, the pipe internal coating film thickness measuring device is inserted into the pipe 100 to be measured, and the motor 50 of the in-pipe transporting and supporting unit 30 is driven using the control unit 80 The first and second members 52 and 54 are rotated by the lead screw 51 so that the first and second members 52 and 54 are connected to each other by the first and second connection 53 and 55 42 in the moving direction. 6, the first and second wheels 33 and 43 are brought into close contact with the inner surface of the pipe 100 while the first and second links 34 and 44 are extended, The drive wheels are brought into close contact with the inner surface of the pipe 100 while the first and second drive links 62 and 65 of the first and second drive wheels 60 are extended by the elastic member.

in this condition. The driving motor 63 of the driving unit 60 is operated to move the measuring body 20 to a position to be measured inside the tube 100 while rotating the driving wheel 64 in normal and reverse directions.

When the coating film measuring unit 70 reaches the measuring position inside the pipe 100 by the movement of the measuring main body 20 as described above, the driving motor of the driving unit 60 is stopped and the actuator 71 is operated And the forward / backward member 72 is moved toward the coating film inside the pipe 100. When the measurement position is reached by the proximity sensor 73 installed at the end of the movement, the actuator is stopped and the coating film is measured using the measurement sensor 74. The coating film information of the pipe measured by the measurement sensor 74 is stored by the control unit. The inside of the tube is measured using the method described above, and the coating film at each site inside the tube is measured.

Since the coating film measuring apparatus according to the present invention operates as described above, it is possible to measure the coating film at a desired position while moving inside the tube. Particularly, since the coating film measurement can be used regardless of the diameter of the tube, It is possible to improve the efficiency and, further, to improve the reliability in forming the coating film.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

The coating film measuring apparatus in the pipe according to the present invention can be widely applied not only to a pipe used for a ship but also to a coating film measurement of an industrial facility or a building which is difficult for a worker to access.

Claims (2)

A tubular measuring body portion 20 having a predetermined length;
A plurality of first and second brackets 31 and 41 provided on both outer circumferential surfaces of the measurement main body 20 and the first bracket 31 of the measurement main body 20, A first link 34 rotatably installed on an outer circumferential surface of the first transfer member 32 and having a first wheel installed at an end thereof, A second conveying member 42 including a first connecting link 35 connecting the first bracket 31 to the first bracket 31 and sliding adjacent to the second bracket 41 of the measuring main body 20, A second link 44 rotatably installed on an outer circumferential surface of the second transfer member 42 and having a second wheel 43 at an end thereof and a second link 44 fixed to the second link 44 and the second bracket 41, And a second connection link 45 for connecting the first and second conveying members 32 and 42 to the measurement main body 20, 20) And a first member 52 screwed to the lead screw 51 is inserted between the first transfer member 32 and the first connection 53, , And a second member (54) screwed to the lead screw (51) is connected to the second transfer member (42) and the second connection space (55) (30); A driving unit (60) installed on the measuring main body (20) and moving the measurement main body part back and forth along the inner surface of the pipe to measure the coating film; And a coating film measuring unit (70) installed at one side of the measuring body (20) for measuring a coated film applied inside the tube,
The coating film measuring unit 70 is provided on the end side of the measuring main body 20 and measures the coating film inside the tube. The coating film measuring unit 70 includes a forward and backward member 72 which is installed to be movable forward and backward by an actuator 71, A proximity sensor 73 and a coating film measurement sensor 74 provided at the end of the forward and backward member 72 and controlling the actuator 71, the driving motor 63 and the motor 50, And a control unit (80) for storing information measured by the measurement sensor (74)
The driving unit 60 includes a first driving link 62 rotatably mounted on a third bracket 61 provided on an outer circumferential surface of the measuring main body 20 and a second driving link 62 connected to the first driving link 62 via a hinge connection A second drive link 65 at the end of which a drive wheel 64 driven by a drive motor 63 is mounted and a second drive link 65 at which the third bracket 61 and the hinge of the first and second drive links 62, And an elastic member (66) installed at the connection portion for elastically biasing the first and second drive links in a direction in which the first and second drive links are opened.
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KR1020150159838A 2015-11-13 2015-11-13 thickness measuring apparatus of sprayed paint KR101786646B1 (en)

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CN108869949A (en) * 2018-08-22 2018-11-23 南通理工学院 A kind of detection of pipe internal coating and auto-mending robot
CN109374030A (en) * 2018-10-25 2019-02-22 南京工程学院 A kind of automatic traction device for the detection of multi-step deep hole
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CN110595346B (en) * 2019-11-12 2020-02-18 山东中科普锐检测技术有限公司 Multi-contact pressing type pipeline coating thickness measuring device
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KR101486019B1 (en) * 2013-09-12 2015-01-27 (주)케이엔알시스템 Robot for inspection in unpiggable pipeline having in-wheel motor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20210066496A (en) * 2019-11-28 2021-06-07 한국로봇융합연구원 Pipe inspection robot and pipe inspection method using the same
KR102277025B1 (en) 2019-11-28 2021-07-14 한국로봇융합연구원 Pipe inspection robot and pipe inspection method using the same

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