KR101681937B1 - Testing equipment for fire protection pipe - Google Patents

Testing equipment for fire protection pipe Download PDF

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Publication number
KR101681937B1
KR101681937B1 KR1020150159109A KR20150159109A KR101681937B1 KR 101681937 B1 KR101681937 B1 KR 101681937B1 KR 1020150159109 A KR1020150159109 A KR 1020150159109A KR 20150159109 A KR20150159109 A KR 20150159109A KR 101681937 B1 KR101681937 B1 KR 101681937B1
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KR
South Korea
Prior art keywords
pipe
unit
plated film
grooving
zinc plated
Prior art date
Application number
KR1020150159109A
Other languages
Korean (ko)
Inventor
권세근
염경성
한상우
Original Assignee
현대갈바텍(주)
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Priority to KR1020150159109A priority Critical patent/KR101681937B1/en
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Publication of KR101681937B1 publication Critical patent/KR101681937B1/en

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
    • G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
    • G01M3/2807—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes
    • G01M3/2815—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes using pressure measurements
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C35/00—Permanently-installed equipment
    • A62C35/58—Pipe-line systems
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C35/00—Permanently-installed equipment
    • A62C35/58—Pipe-line systems
    • A62C35/68—Details, e.g. of pipes or valve systems
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C99/00—Subject matter not provided for in other groups of this subclass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D17/00—Forming single grooves in sheet metal or tubular or hollow articles
    • B21D17/04—Forming single grooves in sheet metal or tubular or hollow articles by rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
    • B24B5/02—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work
    • B24B5/04—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work for grinding cylindrical surfaces externally
    • 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
    • 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
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/022—Test plugs for closing off the end of a pipe
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
    • G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
    • G01M3/2853—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipe joints or seals

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Coating With Molten Metal (AREA)

Abstract

The present invention provides equipment to test a firefighting pipe, capable of determining pass of a pipe treated by grooving and zinc plating in a manufacturing line. According to the present invention, the equipment comprises: a main unit; a transfer unit installed in the main unit and transferring a hollow pipe to a processing position; a grooving unit installed in the main unit to be installed in the processing position and grooving the pipe; a plating unit installed in the main unit to be placed in a rear end of the grooving unit and plating zinc on the pipe transferred through the transfer unit after grooving; and a test unit installed in the main unit and determining good or bad of the pipe according to a leakage pressure of the zinc-plated pipe.

Description

TESTING EQUIPMENT FOR FIRE PROTECTION PIPE

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a test equipment for fire-fighting piping. More particularly, the present invention relates to a test equipment for fire-fighting piping capable of determining the amount of work to be performed on a production line for a pipe subjected to galvanizing treatment after piping.

Generally, when a grooving pipe is installed in the construction of a fire-fighting pipe, it is brought into the site without being grooved in a pipe manufacturing factory.

Then, after the piping was brought in, the piping was installed at the installation position after the grooving was performed in the field.

However, when the piping or pipe is subjected to grooving, there is a problem that the zinc plated layer is inevitably damaged in the piping due to the roving process.

Further, since the zinc plated layer is damaged, there is also a problem that corrosion occurs at the relevant portion.

Accordingly, in recent years, it is required to develop a technology for confirming good products of the piping immediately after the grooving process in the process of manufacturing the fire-fighting piping so that it can be delivered to the site.

A prior art related to the present invention is Korean Patent Laid-Open Publication No. 10-2003-0045074 (published on Jun. 2003).

An object of the present invention is to provide a testing facility for a fire-fighting piping capable of determining a workability in a production line for a piping subjected to zinc plating after grooving in piping.

In a preferred embodiment, the present invention provides a test facility for fire-extinguishing piping.

The test equipment for the fire-fighting piping comprises: a main body; A transfer unit installed in the main body to transfer the hollow pipe to a machining position; A grooving portion installed in the main body to be disposed at the machining position and performing grooving on the pipe; A plating unit installed in the main body so as to be positioned at a rear end of the grooving unit and performing galvanization on the pipe that is grooved and transferred through the transfer unit; And a test section provided in the main body section and judging whether the pipe is good or defective according to the leakage pressure in the zinc-plated pipe.

Wherein the grooving portion comprises a machining portion provided in the main body portion and for grooving a grooving groove at a predetermined position of the pipe, and a machining portion provided in the main body portion, wherein during the machining of the grooving groove, And a control unit for controlling the driving of the processing unit so as to form a predetermined shape condition by image processing the acquired image.

The plating unit includes a plating unit for forming a zinc-plated film on an outer surface of the pipe on which the grooved groove is formed, a second vision unit for acquiring an image of the grooved groove after the zinc-plated film is formed, And a grinding portion for grinding the plated film.

Wherein the controller controls driving of the machining portion so that the zinc plated film has a predetermined reference thickness,

Receiving an image of the grooved groove after the galvanized film is formed from the second vision portion,

The image is subjected to image processing to grind the zinc plated film through the grinding unit so that the thickness of the zinc plated film becomes the reference thickness when the thickness of the zinc plated film formed in the grooved groove is equal to or greater than the reference thickness, .

It is preferable that the grinding section includes a support section and a rotation section.

Wherein the support portion includes a pair of support members for supporting a plurality of positions on the inner periphery of both ends of the pipe and a mobile device for moving the pair of support members so as to be inserted into or removed from the inner periphery of both ends of the pipe,

It is preferable that the rotating portion is provided in the mobile device and rotates the pair of supporting members.

In the control section, the shape condition and the reference thickness of the zinc plated film are set independently from each other depending on the use purpose of the pipe,

It is preferable that the control section controls driving of the machining section and the plating processing section so as to form the shape condition independently of each other and the reference thickness of the zinc plating film.

Wherein the test section includes a gas tight member that hermetically seals both ends of the grooved groove, the pipe on which the zinc plated film is formed, and a pressure air supply unit that supplies pressure air to establish a reference pressure set inside the airtight pipe, And a pressure gauge installed in the hermetic member for measuring a pressure inside the piping.

Wherein the leakage pressure is a pressure that is reduced in the piping provided with the pressure air,

Preferably, the controller receives the measured pressure during a predetermined time, and determines that the measured pressure is equal to or higher than the set leakage pressure.

A connecting portion formed by the machining of the grooved groove is formed in the grooved groove and the pipe in which the zinc plated film is formed,

The test portion may include a pipe connection portion,

It is preferable that the pipe connecting portion rotatably fasten the connecting portions of each of the two or more pipes.

The test section further includes a coating test section.

The coating test section includes a scratch member for physically scratching the grooved groove and the outer surface of the pipe formed with the zinc plated film, and a third vision section for acquiring an image of the outer surface of the pipe.

Wherein the scratch member includes a brush which is in contact with the outer surface of the pipe and reciprocates in a predetermined number of times to apply a scratch,

The control unit performs image processing of the image acquired from the third vision unit to calculate the area of the peeling area generated by the scratch, and when the calculated area of the peeling area is equal to or larger than the set reference area, It is preferable to judge.

It is preferable that the peeling area has a color different from that of the zinc plated film.

In another embodiment, the present invention provides a fire pipe manufacturing method for manufacturing a fire pipe using a fire pipe manufacturing facility capable of line grooving and galvanizing.

INDUSTRIAL APPLICABILITY The present invention has the effect of determining the workability of the piping subjected to the galvanizing treatment after the grooving treatment on the piping.

Further, the present invention has the effect of preventing the failure in advance by controlling the thickness of the zinc plated film in the grooved groove in real time.

Further, the present invention has the effect of determining good products or defects by connecting the piping itself or two or more pipelines after forming the grooved grooves and the zinc plated film and testing the leakage pressure at the connection site.

Further, the present invention has an effect of preventing corrosion of piping at a grooving site by performing a galvanizing treatment on the piping after the grooving treatment.

Further, the present invention has an effect that it can be manufactured by applying the shape of the grooved grooves and the thickness of the zinc plated film in one facility differently depending on the use purpose of the pipe to be manufactured.

1 is a view showing a schematic configuration of a test equipment for fire-fighting piping of the present invention.
2 is a view showing a grooving part according to the present invention.
3 is a view showing a state in which grooved grooves are machined.
Fig. 4 is a view showing a piping in which grooved grooves are machined. Fig.
5 is a view showing a plating processing section according to the present invention.
6 is a view showing a configuration of a rendering unit according to the present invention.
7 is a view showing a test section according to the present invention.
8 is a view showing a painting test section according to the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings so that those skilled in the art can easily carry out the present invention. The present invention may be embodied in many different forms and is not limited to the embodiments described herein.

In order to clearly illustrate the present invention, parts not related to the description are omitted, and the same or similar components are denoted by the same reference numerals throughout the specification.

Hereinafter, the term "an upper (or lower)" or a "top (or lower)" of the substrate means that any structure is disposed or arranged in any manner, as long as any structure is provided or disposed in contact with the upper surface But is not limited to not including other configurations between the substrate and any structure provided or disposed on (or under) the substrate.

Hereinafter, a test equipment for fire-fighting piping will be described with reference to the accompanying drawings.

1 is a view showing a schematic configuration of a test equipment for fire-fighting piping of the present invention.

1, the test equipment for fire-fighting piping according to the present invention includes a main body 100, a transfer unit 200 installed in the main body 100 for transferring the hollow pipe 10 to a processing position, A grooving part 300 installed in the main body part 100 so as to be disposed at the machining position and performing grooving on the pipe 10 and a rear part of the grooving part 300 A plating unit 400 installed in the main body 100 for performing galvanization on the pipe 10 which is grooved and transferred through the transfer unit 200 and a plating unit 400 installed in the main unit 100, And a test part 500 for judging whether the pipe 10 is good or defective according to the leakage pressure in the zinc-plated pipe 10.

Each configuration will be described.

In the transfer unit 200,

The transfer unit 200 according to the present invention may be configured as a roller table installed in the main body 100 and transferring the piping 10.

Here, the pipe 10 is a pipe used in a fire-fighting piping system.

The grooving processing unit 300 is,

FIG. 2 is a view showing a grooving part according to the present invention, FIG. 3 is a view showing a state where grooving grooves are machined, and FIG. 4 is a view showing grooved grooved pipes.

2 to 4, the grooving machine according to the present invention is an apparatus for physically processing a grooving groove at an end portion of a pipe to be transported.

Wherein the grooving processing portion is provided in the main body portion and includes a machining portion for grooving a grooving groove at a predetermined position of the pipe, and a machining portion provided in the main body portion, wherein during the machining of the grooving groove, And a control section for controlling the driving of the processing section so as to form a predetermined shape condition by image processing the acquired image.

The machining unit 310 includes a machining unit body 311 through which a pipe 10 to be fed passes, a pipe rotator 312 installed on the through-pipe body 311 and rotating the pipe 10, Shaped machining members 313 provided at both ends of the machining portion body 311 and capable of raising and lowering to form grooving grooves G. [

The pipe rotator 312 has a roller 312a that rolls on the outer surface of the pipe 10, and a motor 312b that rotates the roller 312a. The roller 312a is rotatably installed in the through-hole body 311. [

The pipe 10 contacts the roller 312a and is rotated by the rotation of the roller 312a.

As the processing member 313 is lowered by the actuator 313a, the processing member 313 presses both ends of the pipe 10. Then, when the pipe 10 is rotated by the pipe rotating machine 311, the grooved grooves G can be machined at both ends of the pipe 10 at the corresponding positions by the processing member 313.

The actuator 312a has an elevating shaft for elevating and lowering the processing member 313. The elevation shaft is driven under the control of the control unit 330.

At the same time, the first vision unit 320 acquires an image of the grooving groove G in the pipe 10, and transmits the image to the control unit 330.

The control unit 330 controls the driving of the machining unit 300 so that the grooving grooves G in the pipe 10 form a predetermined shape condition .

The shape condition may be the depth of the grooved groove (G).

The plating unit

5 is a view showing a plating processing section according to the present invention.

5, the plating unit 400 according to the present invention includes a plating unit 410 for forming a zinc-plated film on the outer surface of the pipe 10 on which grooving grooves G are formed, And a grinding unit 430 for grinding the zinc plated film. The grinding unit 430 grasps the zinc plating film.

Although not shown in the drawing, the plating unit 400 according to the present invention includes a heat treatment furnace for heat-treating the pipe at a temperature suitable for the galvanizing operation, and a plating unit for plating the surface of the pipe, which is heat-treated in the heat treatment furnace, A heating unit for heating the pipe installed in the slat and moving to the plating bath through the slat to uniformize the temperature of the steel plate; A galvanizing facility may be applied.

The control unit 330 receives an image of the grooving groove G after the zinc plating film is formed from the second vision unit 420.

The control unit 330 processes the image so that when the thickness of the zinc plated film formed in the grooved groove G is equal to or greater than the reference thickness, the controller 330 controls the grinding unit 430) to control the thickness of the zinc plated film.

6 is a view showing a configuration of a rendering unit according to the present invention.

Referring to FIG. 6, the grinding unit 430 according to the present invention has a support portion 431, a rotation portion 432, and a grinding member 433.

The support portion 431 includes a pair of support members 431a that support a plurality of positions on the inner periphery of both ends of the pipe 10 and a pair of support members 431a which are provided at both ends of the pipe 10 And a mobile device 432b for moving the mobile device 432b to be inserted or removed.

The rotating portion 432 may be provided on the moving device 432b to rotate the pair of supporting members 431a.

The drawing member 433 is disposed so as to be movable up and down by an elevator 434 on the outside of the pipe 10 to be rotated.

The control unit 330 uses the elevator 434 to raise and lower the grinding member 433 so that the grinding member 433 contacts the outer surface of the pipe 10. [

Therefore, the thickness of the zinc plated film can be controlled by grinding the portion through the grinding member 433 at the outer surface portion of the pipe 10 in which the excessive zinc plated film is formed.

In addition, the shape condition and the reference thickness of the zinc plated film are independently set in the controller 330 according to the use of the pipe 10.

The controller 330 can control the shape conditions to be set independently of each other and the driving of the processing unit 310 and the plating processing unit 400 so as to achieve the reference thickness of the zinc plating film.

Testing Department

7 is a view showing a test section according to the present invention.

7, the test unit according to the present invention includes the grooving groove G, a hermetic member 510 for hermetically sealing both ends of the pipe 10 on which the zinc plated film is formed, A pressure gauge (520) installed in the hermetic member (510) for measuring a pressure inside the pipe (10), and a pressure gauge 530).

The airtightness member 510 is connected to a shaft that is stretchable in the left and right direction, and the shaft is connected to an actuator 511 for expanding and contracting the shaft by receiving a control signal from the control unit 330.

The sealing member 510 is fitted to both ends of the pipe 10 to seal the inside of the pipe 10 according to the expansion and contraction of the shaft.

Here, it is preferable that the leakage pressure is a pressure reduced in the pipe 10 provided with the pressure air.

The control unit 330 receives the measured pressure for a predetermined time, and determines that the measured pressure is equal to or higher than the set leakage pressure.

The grooved groove (G) and the piping on which the zinc plated film is formed are formed with connecting portions according to the machining of the grooved grooves (G).

Further, the test part 500 according to the present invention includes a pipe connection part (not shown).

The piping connection part may connect the connection parts of each of the two or more pipes 10 to each other.

8 is a view showing a painting test section according to the present invention.

Referring to FIG. 8, the test part 500 according to the present invention further includes a paint test part 540.

The coating test portion 540 includes a scratch member 541 for applying physical scratches to the outer surface of the grooved groove G and the pipe 10 having the zinc plated film formed thereon and an image of the outer surface of the pipe 10 And a third vision section 542 for acquiring the second vision section 542.

Here, the scratch member 541 includes an iron brush which is in contact with the outer surface of the pipe 10 and reciprocates in a predetermined number of times to apply a scratch.

The scratch member 541 can be reciprocated right and left in a state of being in contact with the outer surface of the pipe 10 by the linear motor 541a driven under the control of the control unit 330. [

The control unit 330 performs image processing of the image acquired from the third vision unit 542 to calculate the area of the peeling area generated by the scratches, and if the calculated area of the peeling area exceeds the set reference area , It can be judged to be defective.

Here, the peeling area may have a different color from the zinc plated film.

According to the above-described structure and function, in the embodiment according to the present invention, the piping to be subjected to the galvanizing treatment after the grooving treatment can be determined on the production line in the production line.

Further, in the embodiment according to the present invention, the thickness of the zinc plated film in the grooved groove can be controlled in real time to prevent the failure in advance.

Further, in the embodiment according to the present invention, after the grooved groove and the zinc plated film are formed, the pipe itself or two or more pipes may be connected to each other to test the leakage pressure at the connection site to judge the good product or the defect.

Further, in the embodiment according to the present invention, the piping can be subjected to the galvanizing treatment after the grooving treatment to prevent the corrosion of the pipe at the grooved portion.

Further, the embodiment according to the present invention can be manufactured by applying the shape of the grooved grooves and the thickness of the zinc plated film in one facility differently depending on the use purpose of the pipe to be manufactured.

Although the concrete embodiments of the test equipment for fire-fighting piping according to the present invention have been described, it is apparent that various modifications can be made without departing from the scope of the present invention.

Therefore, the scope of the present invention should not be limited to the above-described embodiments, but should be determined by the scope of the appended claims and equivalents thereof.

It is to be understood that the foregoing embodiments are illustrative and not restrictive in all respects and that the scope of the present invention is indicated by the appended claims rather than the foregoing description, It is intended that all changes and modifications derived from the equivalent concept be included within the scope of the present invention.

10: Piping
100:
200:
300: Grooving part
400: plating unit
500: Test section

Claims (9)

A body portion;
A transfer unit installed in the main body to transfer the hollow pipe to a machining position;
A grooving part installed in the main body part to be disposed at the machining position and performing grooving on the pipe;
A plating unit installed in the main body so as to be positioned at a rear end of the grooving unit and performing galvanization on the pipe that is grooved and transferred through the transfer unit; And
And a test unit installed in the main body and determining whether the pipe is good or defective according to a leakage pressure in the galvanized pipe,
The grooving processing portion
A machining portion provided in the main body portion for grooving a grooving groove at a predetermined position of the pipe,
A first vision unit provided in the main body and configured to acquire an image of the grooved groove while the grooved groove is being machined,
And a control unit for performing image processing on the acquired image to control driving of the processing unit so as to form a predetermined shape condition,
The plating unit may include:
A plating section for forming a zinc plated film on an outer surface of the pipe on which the grooved groove is formed;
A second vision portion for acquiring an image of the grooved groove after the galvanized film is formed;
And a grinding unit for grinding the zinc plated film,
Wherein,
The operation of the machining portion is controlled so that the zinc plated film has a predetermined reference thickness,
Receiving an image of the grooved groove after the galvanized film is formed from the second vision portion,
The image is subjected to image processing to grind the zinc plated film through the grinding unit so that the thickness of the zinc plated film becomes the reference thickness when the thickness of the zinc plated film formed in the grooved groove is equal to or greater than the reference thickness, and,
The testing unit includes:
A gas tight member for airtightly sealing both ends of the grooved groove, the pipe on which the zinc plated film is formed,
A pressure air supplier for supplying pressure air so that both ends form a reference pressure set inside the airtightness of the pipe;
And a pressure gauge installed in the hermetic member for measuring a pressure inside the pipe,
Wherein the leakage pressure is a pressure that is reduced in the piping provided with the pressure air,
Wherein,
When the measured pressure is delivered during the set time and the measured pressure during the set time is equal to or greater than the set leakage pressure,
A connecting portion formed by the machining of the grooved groove is formed in the grooved groove and the pipe in which the zinc plated film is formed,
The test portion may include a pipe connection portion,
Wherein the pipe connection portion comprises:
The connecting portions of each of the two or more pipes are rotationally fastened to each other,
The test portion may further include a coating test portion,
The coating test section
A scratch member for physically scratching the grooved groove and the outer surface of the pipe formed with the zinc plated film,
And a third vision unit for acquiring an image of an outer surface of the pipe,
Wherein the scratch member includes a brush which is in contact with the outer surface of the pipe and reciprocates in a predetermined number of times to apply a scratch,
Wherein,
The image obtained from the third vision unit is image-processed to calculate the area of the peeling area generated by the scratch, and when the calculated area of the peeling area is equal to or larger than the set reference area, Test equipment for fire-fighting piping.
delete delete The method according to claim 1,
The grinding unit includes:
A support portion, and a rotation portion,
Wherein the support portion includes a pair of support members for supporting a plurality of positions on the inner periphery of both ends of the pipe and a mobile device for moving the pair of support members so as to be inserted into or removed from the inner periphery of both ends of the pipe,
Wherein the rotating portion is provided in the mobile device and rotates the pair of supporting members.
The method according to claim 1,
In the control unit,
The shape condition and the reference thickness of the zinc plated film are set independently from each other depending on the use purpose of the pipe,
Wherein,
Wherein the control unit controls the driving of the machining unit and the plating processing unit so as to form the shape condition independently of each other and the reference thickness of the zinc plated film.
delete delete delete The method according to claim 1,
Wherein the peeling area has a color different from that of the zinc plated film.

KR1020150159109A 2015-11-12 2015-11-12 Testing equipment for fire protection pipe KR101681937B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112975705A (en) * 2021-03-08 2021-06-18 徐立堂 Tubular steel material rust cleaning equipment
CN113649907A (en) * 2021-07-16 2021-11-16 廖承法 Solar vacuum tube support frame assembly and annular cold grinding sleeving equipment

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KR100314240B1 (en) * 1999-07-05 2001-11-17 김시원 A Auto Certrol System on A Manufactued Process of Double Tube
KR101346722B1 (en) * 2012-10-22 2014-01-10 이에프코리아주식회사 Flecxible joint for firefighting piping and manufacturing method thereof
KR20140058042A (en) * 2012-11-06 2014-05-14 윤상진 With bellows plating method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100314240B1 (en) * 1999-07-05 2001-11-17 김시원 A Auto Certrol System on A Manufactued Process of Double Tube
KR101346722B1 (en) * 2012-10-22 2014-01-10 이에프코리아주식회사 Flecxible joint for firefighting piping and manufacturing method thereof
KR20140058042A (en) * 2012-11-06 2014-05-14 윤상진 With bellows plating method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112975705A (en) * 2021-03-08 2021-06-18 徐立堂 Tubular steel material rust cleaning equipment
CN113649907A (en) * 2021-07-16 2021-11-16 廖承法 Solar vacuum tube support frame assembly and annular cold grinding sleeving equipment
CN113649907B (en) * 2021-07-16 2023-10-31 祐樘(南京)软件科技有限公司 Solar vacuum tube support frame assembly and ring groove cold grinding suit equipment

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