KR101521047B1 - Manufacturing equipment of flexible elbow lagging cover - Google Patents

Manufacturing equipment of flexible elbow lagging cover Download PDF

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Publication number
KR101521047B1
KR101521047B1 KR1020140012015A KR20140012015A KR101521047B1 KR 101521047 B1 KR101521047 B1 KR 101521047B1 KR 1020140012015 A KR1020140012015 A KR 1020140012015A KR 20140012015 A KR20140012015 A KR 20140012015A KR 101521047 B1 KR101521047 B1 KR 101521047B1
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KR
South Korea
Prior art keywords
mold
insulating cover
lower mold
bulging
heat insulating
Prior art date
Application number
KR1020140012015A
Other languages
Korean (ko)
Inventor
오창현
김세민
Original Assignee
오창현
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Priority to KR1020140012015A priority Critical patent/KR101521047B1/en
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Publication of KR101521047B1 publication Critical patent/KR101521047B1/en

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    • 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
    • B21D13/00—Corrugating sheet metal, rods or profiles; Bending sheet metal, rods or profiles into wave form
    • B21D13/02—Corrugating sheet metal, rods or profiles; Bending sheet metal, rods or profiles into wave form by pressing
    • 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
    • B21D15/00—Corrugating tubes
    • B21D15/04—Corrugating tubes transversely, e.g. helically
    • B21D15/06—Corrugating tubes transversely, e.g. helically annularly
    • 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
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/02—Stamping using rigid devices or tools
    • B21D22/025—Stamping using rigid devices or tools for tubular articles
    • 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
    • B21D45/00—Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass
    • B21D45/02—Ejecting devices

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Insulation (AREA)

Abstract

The present invention relates to a device for manufacturing a curved tube type heat insulating cover, and more particularly to a device for forming a curved tube type heat insulating cover having a bulging portion at an upper end of a curved tube type heat insulating cover and having durability and flexibility .
The present invention comprises a lower mold (22) and an upper mold (23) for forming a curved upper insulating cover (11); A frame 21 supporting the lower mold 22 and the upper mold 23 and maintaining a constant height from the ground; A rotary motor 25 connected to the lower mold 22 to rotate the lower mold 22 in a bulge forming step; A press 27 for molding a plate material by mating with the lower mold 22 vertically feeding the upper mold 23; A bulging mold (24) located at the upper end of the frame (21) and fastened to another press (27) and for molding the bulging portion (20); A replacement cylinder (28) for replacing the upper mold (23) and the bulging mold (24); And an extraction cylinder (29) for extracting the molded product from the lower mold (22).
The upper heat insulating cover formed by the present invention has a high strength of the heat insulating cover due to the bulging portion of the upper heat insulating cover disposed radially with respect to the central portion of the curved tube portion and can flexibly move, It can cope with the expansion and contraction according to the change.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001]

The present invention relates to a device for manufacturing a curved tube type heat insulating cover, and more particularly to a device for forming a curved tube type heat insulating cover having a bulging portion at an upper end of a curved tube type heat insulating cover and having durability and flexibility .

The present invention relates to a curved tube type thermal insulation cover for piping insulation, and more particularly to a curved insulation cover for protecting a thermal insulation covering an elbow pipe in insulation construction of pipes such as a water pipe, a gas pipe and a double complementary pipe. do.

In order to protect the insulation material for piping, a curved insulation cover is generally constructed by assembling a bent plate material according to a predetermined angle, so that the construction is accomplished by a worker having a high skill level There is a problem that construction by a general worker is impossible.

In order to solve the problem of the above working efficiency, KR 20-0207806 and KR 20-0273517 disclose a binding means or a clip binding portion on both sides of a split duct which is horizontally or vertically divided.

In addition, Korean Patent Publication No. 10-2013-0000195 discloses a protective case with a heat insulating material, which facilitates insulation of piping by integrating a heat insulating material and a protective case.

In order to enhance the durability of the curved surface portion, the curved tube-type heat insulation cover is used as a tubular tube by bending a tube-shaped tube. The tube-shaped tube, which is expanded as it bends the tube, There is a slight plastic deformation due to excessive bending, and there is a problem that it is easily broken even with small external force during transportation, transportation or installation.

As a method for solving the above problem, in Korean Patent No. KR-10-1156662, instead of the conventional method, a tube-like double insulated tube having a bellows tube made of synthetic resin or metal and a plurality of spacers flexibly bent However, the conventional problem of using the corrugated tube has not been solved.

In order to provide convenience of the construction, the curved tubular thermal insulation cover is preferably formed as a one-piece structure that is divided into two without being divided into a plurality of pieces. Second, it is preferable to form a corrugated tube considering flexibility and thermal expansion of the second construction, In order to enhance the durability of the insulating cover, it is preferable to provide a radiation type bulging portion.

1.KR 20-0207806, 'Elbow duct for pipe insulation', Registration date: Oct. 2000. 2.KR 20-0273517, 'Elbow duct for pipe insulation', registered on April 15, 2002. 3.KR 10-2013-0000195, 'Protective case with insulating material and method for manufacturing the same', Public date: 2013.01.02. 5. KR 10-1156662, 'Tubular double insulated tube and its manufacturing method', Registration date: 2012.06.08. 6. KR 10-1081505, 'Metal bellows tube and method of forming thereof', registered on November 2, 2011.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a device for forming a curved tubular thermal insulation cover having a bulging portion only at an upper end and having durability and flexibility at the same time.

It is still another object of the present invention to provide a manufacturing method for manufacturing the above-mentioned curved tube type heat insulating cover.

In order to accomplish the above object, the present invention provides a method of manufacturing a heat exchanger, comprising: a lower mold (22) and an upper mold (23) for molding a curved upper heat insulating cover (11); A frame 21 supporting the lower mold 22 and the upper mold 23 and maintaining a constant height from the ground; A rotary motor 25 connected to the lower mold 22 to rotate the lower mold 22 in a bulge forming step; A press 27 for molding a plate material by mating with the lower mold 22 vertically feeding the upper mold 23; A bulging mold (24) located at the upper end of the frame (21) and fastened to another press (27) and for molding the bulging portion (20); A replacement cylinder (28) for replacing the upper mold (23) and the bulging mold (24); And an extraction cylinder (29) for extracting the molded product from the lower mold (22).

The bulging die 24 of the present invention is for molding the bulging portion 12 of the upper insulating cover 11 formed in an elbow shape and has a lower end in the form of a semicircle, And the temperature of the heat exchanger is gradually increased toward the center.

The rotation motor 25 of the present invention is characterized in that the bulging portion 12 of the upper insulating cover 11 sequentially rotates by a set angle so that the bulging portion 12 is radially arranged with respect to the center circle of the curved portion To provide a tube-shaped thermal insulation cover manufacturing apparatus.

The present invention has the following effects.

First, it is manufactured as a single unit which is not divided into a plurality of units but divided into two, and can be simply constructed as a binding unit.

Second, since the upper insulating cover is provided with the bulging portion 12, it can be flexibly moved so as to have flexibility of the construction, and after the construction, it can cope with the expansion and contraction according to the temperature change.

Third, since the bulging portion of the upper heat insulating cover disposed radially with respect to the center of the bending portion has the effect of increasing the strength of the heat insulating cover.

Fourth, since the bulging portion 12 is provided only in the upper insulating cover, there is no crack due to excessive plastic deformation of the contraction portion generated in the bending tube of the prior art bent bellows, and there is no welded portion, thereby preventing leakage, leakage and rust .

1 is a perspective view of a preferred embodiment of a heat shield according to the present invention.
Fig. 2 is a cross-
3 is a front view
4 is a side view of the insulating cover upper molding device
Fig. 5 is a view showing a process of forming an upper insulating cover. Fig.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

In order to provide ease of construction, the curved tube type heat insulation cover is provided with a curved tube type thermal insulation cover which is firstly formed into an integral type divided into two without being divided into a plurality of pieces, The present invention provides a manufacturing apparatus for forming a thermal insulation cover having only a radiating-type bulging portion (12) with respect to a central core of a tube only in an upper thermal insulation cover in order to cope with expansion and contraction.

The upper insulating cover 11 formed by the manufacturing apparatus of the present invention is provided with the bulging portion 12 to simultaneously provide the function of improving the strength of the tapered insulating cover and to provide a method of manufacturing the tapered insulating cover do.

FIG. 1 is a perspective view of a preferred embodiment of the heat shield according to the present invention, and FIG. 2 shows the construction of the heat shield.

The thermal insulation cover 10 of the product molded in accordance with the present invention includes an upper thermal insulation cover 11 in the form of an elbow and having at least one bulging portion 12; And a lower insulating cover 13 of a curved surface portion which is fastened to the upper insulating cover 11 and is disposed radially with respect to a center circle of the curved surface portion and formed only in the upper insulating cover 11 .

The upper insulating cover 11 and the lower insulating cover 13 are preferably formed as curved portions, but they are bent in a straight polygonal shape in accordance with the object of installation and the formation of the insulating material.

When the upper insulating cover 11 and the lower insulating cover 13 are bent in a polygonal shape, the bulging portion 12 is preferably formed in the bent portion.

The present invention is not limited to a plurality of pieces but is divided into two pieces and can be easily assembled by a binding means. Since the upper insulating cover 11 is provided with the bulging portion 12, it can be flexibly moved, The bulging portion 12 is disposed radially with respect to the central portion of the bending portion so that the effect of increasing the strength of the warming cover 10 can be obtained I have.

3 is a front view of the insulating cover upper molding device 20, and FIG. 4 is a side view of the insulating cover upper molding device 20

The molding apparatus 20 for molding the upper insulating cover 11 includes a lower mold 22 and an upper mold 23 for molding a curved upper insulating cover 11; A frame 21 supporting the lower mold 22 and the upper mold 23 and maintaining a constant height from the ground; A rotary motor 25 connected to the lower mold 22 to rotate the lower mold 22 in a bulge forming step; A press 27 for molding a plate material by mating with the lower mold 22 vertically feeding the upper mold 23; A bulging mold (24) located at the upper end of the frame (21) and fastened to another press (27) and for molding the bulging portion (20); A replacement cylinder (28) for replacing the upper mold (23) and the bulging mold (24); And an extraction cylinder (29) for extracting the molded product from the lower mold (22).

It is preferable that the upper mold 23 and the lower mold 22 are formed as a curved portion, but it is also preferable that the upper mold 23 and the lower mold 22 are bent into a polygonal shape in a straight line.

It is preferable that the upper mold 23 and the bulging mold 24 are fastened to a hydraulic cylinder reciprocating vertically and the plate inserted between the molds 22, do.

The replacement cylinder 28 is a cylinder for replacing the upper mold 23 and the bulging mold 24 for curved surface forming and bulge forming.

The upper mold 23 and the bulging mold 24 are preferably horizontally moved along the guide rail 30 by the replacement cylinder 28.

The bulging metal mold 24 is for forming the bulging portion 12 of the upper insulating cover 11 formed in an elbow shape and has a semicircular shape at the lower end and gradually increases in depth from the edge toward the center of the bulging depth .

The rotary motor 25 is connected to the lower mold 22 to sequentially rotate the lower mold 22 in the bulging molding step to form the radial bulging portion 12 with respect to the center of the curved portion.

Therefore, the rotary motor 25 rotates sequentially by a set angle so that the bulging portion 12 of the upper insulating cover 11 is radially arranged with respect to the center circle of the curved portion.

5 is a view showing a process of forming an upper insulating cover. Referring to FIGS. 3 to 6, the manufacturing apparatus and the manufacturing process of the curved tube type thermal insulation cover 10 according to the present invention will be described in detail as follows.

1. Inserting sheet

The sheet material is inserted between the lower mold 22 and the upper mold 23 of the upper insulating cover molding apparatus 20 for molding.

2. Elbow forming step

After the plate member is inserted, the upper mold 23 is downwardly curved with a metal material such as steel or stainless steel at an angle of 22.5, 45, 90, Or a polygonal bend shape.

3. Bulging press exchange step

After the elbow forming step, the upper mold 23 is replaced with the bulging mold 24 by using the replacement cylinder 28 to mold the bulging portion 12.

4. The bulging phase

After the bulging press replacement step, the lower mold 22 is rotated at a predetermined angle by the rotation motor 25 to form the bulging portion 12 in a radial shape with respect to the center of the curved portion, And the bulging portion 12 is formed on the upper insulating cover sequentially by pressing.

5. Product Extraction Step

After the bulging step, the completed upper insulating cover 11 is extracted from the lower mold 22 by the extraction cylinder 29, and the completed upper insulating cover is extracted.

The present invention is characterized in that a bulging portion 12 is provided only in the upper insulating cover 11. Therefore, when the lower insulating cover 13 is to be formed, a plate material is inserted between the lower metal mold 22 and the upper metal mold 23 ; An elbow forming step of forming the lower mold (23) downward into a curved line after the plate material is inserted; It is desirable to include a product extracting step of extracting the completed lower insulating cover 13 from the lower mold 22 due to the extraction cylinder 29 after the elbow forming step.

In the present invention, since the heat insulating cover having a bulging portion is integrally formed, it can be stably used for a long period of time under expansion and contraction due to temperature change. Moreover, since there is no welded portion, cracks are not generated and moisture and the like are not penetrated. There is no damage, it is possible to maximize the effect of insulation and insulation, and the production period and production cost can be greatly reduced.

10: curved tube type heat insulation cover, 11: upper insulation cover, 12: bulging portion, 13: lower insulation cover
The present invention relates to an upper insulating cover molding apparatus and a method of manufacturing the same and a method of manufacturing the same. 30: Guide rail.

Claims (3)

A lower mold (22) and an upper mold (23) for forming a curved upper insulating cover (11);
A frame 21 supporting the lower mold 22 and the upper mold 23 and maintaining a constant height from the ground;
A rotary motor 25 connected to the lower mold 22 to rotate the lower mold 22 in a bulge forming step;
A press 27 for molding a plate material by mating with the lower mold 22 vertically feeding the upper mold 23;
A bulging mold (24) located at the upper end of the frame (21) and fastened to another press (27) and for molding the bulging portion (20);
A replacement cylinder (28) for replacing the upper mold (23) and the bulging mold (24); And an extraction cylinder (29) for extracting the molded product from the lower mold (22)
The rotary motor (25)
And the bulging portion (12) of the upper heat insulating cover (11) is arranged to be radially arranged with respect to the center circle of the curved portion, and is sequentially rotated by the set angle. delete delete
KR1020140012015A 2014-02-03 2014-02-03 Manufacturing equipment of flexible elbow lagging cover KR101521047B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020140012015A KR101521047B1 (en) 2014-02-03 2014-02-03 Manufacturing equipment of flexible elbow lagging cover

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020140012015A KR101521047B1 (en) 2014-02-03 2014-02-03 Manufacturing equipment of flexible elbow lagging cover

Publications (1)

Publication Number Publication Date
KR101521047B1 true KR101521047B1 (en) 2015-05-15

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ID=53394918

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020140012015A KR101521047B1 (en) 2014-02-03 2014-02-03 Manufacturing equipment of flexible elbow lagging cover

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62101487A (en) * 1985-10-29 1987-05-11 Seiko Epson Corp Die-stamper for back case of watch
JP2005007441A (en) * 2003-06-19 2005-01-13 Yoshihiro Kato Press
JP2012066271A (en) * 2010-09-22 2012-04-05 Mitsuboshi Seisakusho:Kk Apparatus and method for press-forming metal pipe

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62101487A (en) * 1985-10-29 1987-05-11 Seiko Epson Corp Die-stamper for back case of watch
JP2005007441A (en) * 2003-06-19 2005-01-13 Yoshihiro Kato Press
JP2012066271A (en) * 2010-09-22 2012-04-05 Mitsuboshi Seisakusho:Kk Apparatus and method for press-forming metal pipe

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