KR101868064B1 - Manufacturing device for embossing metal pipe to enable easier weld both sides of embossing sheet metal and process for preparing the same - Google Patents

Abstract

Provided are an embossed pipe manufacturing device and an embossed pipe manufacturing method using the same, which can facilitate welding of both sides of a metal plate. The embossed pipe manufacturing device comprises: an uncoiler providing a flat metal plate; a centering guide roller for guiding the flat metal plate supplied from the uncoiler to an embossing machine located at a rear end; the embossing machine, which makes the flat metal plate, which is supplied after going through the centering guide roller, embossed to form an embossed metal plate; and a pipe forming machine, which manufactures an embossed pipe having a welded joint part in a longitudinal direction through a surface curving and rounding process of the embossed metal plate provided through the embossing machine and welds the welded joint part of the manufactured embossed pipe to complete the embossed pipe. The embossed pipe manufacturing method comprises: a first step of supplying a flat metal plate to the embossing machine through the centering guide roller from the uncoiler; a second step of making the flat metal plate embossed using an embossing mold roller of the embossing machine to form an embossed metal plate; and a third step of supplying the embossed metal plate to the pipe forming machine in order to manufacture an embossed pipe having a welded joint part in a longitudinal direction through the surface curving and rounding process and weld the welded joint part of the manufactured embossed pipe to complete the embossed pipe.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an embossed pipe manufacturing apparatus for facilitating welding of both sides of an embossed metal plate, and a method of manufacturing an embossed pipe using the same.

The present invention relates to an apparatus for manufacturing an embossed pipe for facilitating welding of both sides of an embossed metal sheet and a method for manufacturing an embossed pipe using the same,

More particularly, the present invention relates to an embossing apparatus for embossing a flat metal sheet, a centering guide roller for guiding a flat metal sheet fed from the uncoiler to a embossing machine at a rear end, and a flat metal sheet fed through the centering guide roller, The embossed pipe having the welded part in the longitudinal direction is manufactured through the embossing machine for shaping and the embossed metal sheet fed through the embossing machine and the rounding process and the embossed pipe thus produced is welded to the embossed pipe to be embossed An embossing pipe manufacturing apparatus including a pipe finishing pipe,

A second step of supplying the flat metal plate by an embossing machine through a centering guide roller supplied from an uncoiler, a second step of embossing the flat metal plate using an embossing die roller of an embossing machine to form an embossed metal plate, And a third step of supplying the metal plate to the tubular furnace to manufacture an embossed pipe having a welded portion in the longitudinal direction through a curving process and a circularizing process and welding the welded portion of the embossed pipe to complete the embossed pipe The present invention relates to a method of manufacturing an embossed pipe, in which, when an embossed pipe is formed by using an embossed metal plate and then a joint is welded, the problem of incapability of welding due to inconsistency of the joint due to the curved surface of the concave and convex is solved, Closure by preventing joints from appearing outside Thereby providing a processed embossing pipe.

A metal pipe obtained by extruding a molten metal into a metal pipe and a metal pipe having a joint portion formed by welding a metal pipe by using a metal pipe to form a pipe through a rounding step and a circularizing step, There is a pipe.

The former is a metal pipe with a thick thickness and pressure resistance and is used in a large quantity for various purposes such as a water pipe, a sewer pipe, a petroleum pipe, a high pressure gas pipe, a transfer pipe for liquid reactant in a chemical plant, an oil pipeline,

The latter is relatively thinner than the metal pipe by the extrusion method in terms of the supporting force and the strength, and is mainly used for applications such as interior railings and support for street lamps. In addition, it does not reach the metal pipe of the former in terms of usage and demand.

Although the above-mentioned metal pipes are used for each of the above-mentioned purposes, as the processing technology of the metal pipe is improved as the year goes by, the applications are diversified and the demand amount is also increasing.

In parallel with the above-mentioned trend, in the technical field of the embossing pipe, the demand for the embossing pipe has been increased along with the improvement of the processing technology.

In the prior art of embossing pipes, a pipe formed by plating a colored metal such as nickel partly on the surface of a metal pipe having a smooth surface, a pipe formed by plasma ion deposition with titanium oxide, A metal pipe formed by embossing by patterning by mechanical cutting, and metal pipes having been embossed are being released.

A description will now be given of a known technique of the embossed metal pipe field related to the present invention among the processing techniques added to the metal pipe.

 When the plunger moves backward in the "pattern forming machine for metal pipe" of the Korean Patent Registration No. 10-1611572 (registration date 2016.04.05), the inner mold provided in the housing is pushed by the plunger and moved to the inner peripheral surface side of the metal pipe, The embossing processing technique in which the embossed pattern processed on the major surface of the outer mold is engaged with the pattern of the engraved pattern machined on the inner peripheral surface of the outer mold while a character pattern is formed on the surface of the metal pipe located between the inner mold and the outer mold.

A 'metal pipe embossing protrusion forming device' of Korean Patent Registration No. 10-404895 (registered on Oct. 29, 2003) is provided with a mobile fixed frame installed and fixed at the center of the frame, a left and right fixed frame fixedly attached to the frame, A cylindrical casing having a plurality of circular cylindrical through-holes is formed by moving the first and second moving force generating members to the inside of the plurality of circular casings, and the metal pipe is pushed into the cylindrical casing so as to be closely attached to the cylindrical casing. And a plurality of through holes formed in a cylindrical inner peripheral surface of the cylindrical casing, the casing having a through hole formed in an inner surface of the cylindrical casing and a large diameter core hole formed in the outer surface of the core, And the inner diameter of the core is the same as that of the core, And pushing the flange made of the rod body into the cylinder of the second moving force deflecting member with a strong pressure and pushing the lower curved portion of the punch circular part protruding inward into the through hole of the light pipe by the conical slope of the flange front end The punch of the dome-shaped large-diameter portion integrally formed with the small-diameter portion is also pushed up in the direction of the casing opening formed on the inner surface of the casing so that the surface of the pipe is curved and protruded to form innumerous projections in the pipe, A molding method is disclosed.

The 'pipe embossing device with improved structure' includes a cylinder operated by air pressure and a cylinder constituted by a piston operated by the cylinder, and an embossed molding formed on the tip of the piston Discloses a device for forming a circular groove in a metal pipe by striking a plurality of cylinders of a device constituted by projections by a pneumatic pressure at a predetermined interval in a direction perpendicular to the metal pipe center line.

In the prior art, the pattern formed on the surface of the metal pipe is largely devoid of delicacy and precision, and the manufacturing apparatus is also equipped with a metal pipe having a smooth surface cut to a predetermined length and is operated in steps 1 to 5 or 1 to 6 The embossing pipe is molded and then taken out. Since it is not a continuous method, productivity is low and mass production is impossible, and the production cost is also high.

In addition, a pipe with a circular groove on a metal pipe is also simple and delicate in its embossing pattern.

In addition, as a technique for embossing on the outer circumferential surface of the pipe as described above, Korean Patent Registration No. 10-1017890 (registered date Feb. 21, 2011) entitled " Rhombus- -1604011 (Registration date 2016.03.10) A technique of a 'pipe forming apparatus for pipes' has been disclosed.

As described above, the embossing pipes currently used are manufactured by the above-described apparatuses other than the gutters, and it is difficult to find an example in overseas as well as domestic producers that manufacture the embossing pipes using the gutters.

There have been many problems to be solved until the present invention of producing an embossed pipe from a metal plate which is embossed on both sides with a tubular machine for manufacturing a circular metal pipe having a smooth surface with a metal flat plate.

In general, the thickness of the metal plate, including the stainless steel plate used for the embossing treatment, can be in the range of 0.5 to 5 mm, and if it starts to thicken beyond 5 mm, a great deal of power is required. Even if embossing is performed, Do not appear.

If the thickness is lower than 0.5 mm, the delicate pattern will appear properly, but the thickness of the embossing pattern becomes too thin and the pressure resistance is weak. However, when the embossing process is deeply deepened, the thickness of the embossing process is reduced to half of the original thickness. Therefore, when the embossing process and the rounding roller pass through, the thinned embossing pattern sinks or is embossed in the reverse direction So that a defective pipe is obtained.

The embossed stainless steel plate is embossed by embossing the metal plate including the stainless steel plate by the embossing roller having the double-sided embossing process. The end portion of the embossed stainless steel plate in the longitudinal direction and the width direction forms a curved surface. It is practically impossible to weld them.

Even if the curved surfaces of both sides are matched by the embossing process with the embossing roller which is designed correctly, it is deformed at the height of the embossing pattern during the process of passing through the plural male and female engaging curving rollers and symmetrical engaging rounding rollers .

In particular, since the unevenness of the rolling in the engaging curved surface roller and the unevenness of the embossed stainless steel plate in the lengthwise direction due to the unevenness of the shearing force in the longitudinal direction of the embossed stainless steel plate are generated, the curved surfaces caused by the pattern are misaligned in the height direction and the longitudinal direction, It is impossible to ensure the watertightness and airtightness due to the occurrence of the gap pores in the joint part when welding by Alcone welding of the embossed pipe.

Also, since the pipes embossed on the outer circumferential surface of the metal pipe are not only simple in embossing pattern but also can not form a delicate and elaborate embossing pattern, and the metal pipes cut into a certain length are mounted one by one and embossed on the outer surface of the pipe, There is a drawback that it is inefficient.

The present invention solves the problems of the apparatus for manufacturing an embossed metal pipe, thereby completing an embossing pipe having an embossing pattern that is efficient, precise, and detailed using a gutter.

In connection with the present invention, it takes a long time to complete the embossed pipe manufacturing process using the embossing machine, and unexpected problems have occurred. These problems were then solved one by one to complete the final embossed metal pipe.

One of the above problems is that when the metal plate is passed through the gutters, a high pressure male and female curved surface roller pressure acts on the metal plate during the passage through the male and female curving rollers installed horizontally and vertically, do.

On the other hand, in the case of a metal plate subjected to embossing, the embossing pattern of the concave and convex portions has an apparent volume corresponding to the thickness of the metal plate before the embossing process.

As a concrete example, when a metal plate of 0.5 mm and 1 mm is used before the embossing process, the height from the protruding portion of the embossed pattern to the bottom becomes 1 mm and 2 mm, thereby forming a space. By using the embossed metal plate, In order to solve this problem, it is necessary to adjust the gap between the circularizing male and female rollers according to the degree of embossing in order to solve the above problem. You must do it correctly.

Further, when the gap between the engaging circular male and female rollers is narrow and the pressure is increased, deformation of the embossing pattern is increased, and at the same time, the width of the embossed metal plate is widened so that the width of the embossed metal sheet can be overlapped in the circularizing- Surfacing can not be achieved smoothly.

Another problem is in the joint which is formed in the longitudinal direction of the embossed metal pipe. That is, when the embossing pipe is manufactured using the embossing metal plate, there is a problem in that it is impossible to weld the transfer part formed in the embossing length direction.

To summarize the above,

The embossed metal plate or the embossed metal band treated with the embossing roller having a very precise dimensional stability when manufacturing the embossed pipe with the pipe machine is passed through the pipe machine to form a horizontal male and female engaging roller made of high strength metal for curving, Horizontal and Vertical Engraving During embossing, the embossing pattern on the embossed metal plate thinned by the embossing process is deformed in the process of passing through the symmetrical roller and the difference in the height of the embossing pattern is generated. In the longitudinal direction, the difference in pressing force due to the engagement of the roller and rotation The difference in the length of the embossing pattern in the length direction due to the difference in the shearing force caused the welds to be loosened in the height and length direction of the embossing patterns corresponding to each other at the welds,

Even if the welding is done, there are innumerable gaps and fine holes in the welded joints, so that the watertightness and airtightness of the joints can not be ensured. If the welding time is lengthened in order to eliminate them, the welds will contaminate the surface of the embossed patterns, do.

An apparatus for manufacturing an embossed pipe for facilitating welding of both sides of an embossed metal sheet to be proposed in the present invention is a means for solving such a problem and a method for manufacturing an embossed pipe using the same.

Korean Registered Patent No. 10-1611572 (registered date: 2016.04.05) Korean Registered Patent No. 10-404895 (registered on October 27, 2003) Korean Registered Patent No. 10-1399231 (Registered on May 19, 2014) Korean Registered Patent No. 10-1017890 (registered on February 21, 2011) Korean Registered Patent No. 10-1604011 (Registration date 2016.03.10)

SUMMARY OF THE INVENTION The present invention is directed to solve the problems of the prior art,

It is possible to prevent the problem of deformation of the embossing pattern caused by the embossing pattern generated when the embossing pipe is manufactured from the embossed metal plate by using a general tubular machine and to solve the dimensional instability due to the extension of the width of the embossed metal sheet, When the embossed pipe is molded by using the embossed metal plate which forms the curved surface, the problem that the welding can not be performed due to the inconsistency of the joint due to the curved surface of the unevenness is solved and the joint chest is minimized, Which can provide an embossed pipe finely finished so as not to be exposed to the outside, and to provide a method of manufacturing an embossed pipe using the same.

Also, since the inclined surface can be formed directly on the embossing roller to prevent thinning of the joint portion and to form a V-shaped groove, it is possible to provide an embossed pipe having a delicate and precise embossing pattern, and a negative, The present invention provides an embossed pipe manufacturing apparatus and a method of manufacturing an embossed pipe using the embossed pipe manufacturing apparatus, which facilitates welding of both sides of an embossed metal plate that can maximize productivity.

In order to achieve the above object,

According to the present invention,

An uncoiler for providing a flat metal plate,

A centering guide roller for guiding a flat metal sheet fed from the uncoiler to a subsequent embossing machine,

An embossing machine for embossing the flat metal sheet supplied through the centering guide roller to form an embossed metal sheet,

The embossing pipe having the welding part in the length direction is manufactured through the curving and circularizing process of the embossed metal sheet fed through the embossing machine and the welding of the embossing pipe thus manufactured is welded to the tubing machine for completing the embossing pipe And,

The embossing machine includes an embossing mold roller configured to engage with an upper roller having a embossed embossing pattern formed thereon and a lower roller having an engraved embossing pattern formed thereon,

A frame portion for supporting the embossing mold roller while forming an exoskeleton,

And a hydraulic cylinder installed at an upper end of the frame portion,

The upper roller includes a roller body,

A rotary shaft installed at the center of both side surfaces of the roller body,

An embossing pattern portion formed on the surface of the roller body,

And a first left and right end portions formed to be lower than embossed pattern portions of the embossed pattern along both side edges of the roller body,

The lower roller includes a roller body,

A rotating shaft formed at the center of both side surfaces of the roller body,

An engraved pattern portion formed on a surface of the roller body,

And a second left and right end portions formed to be higher than embossed pattern portions of the engraved pattern portions along both side edges of the roller body. The present invention also provides an embossed pipe manufacturing apparatus using the embossed metal plate.

As a manufacturing process of an embossing pipe using the manufacturing apparatus,

A first step of supplying a flat metal plate with an embossing machine through a centering guide roller supplied from an uncoiler,

A second step of embossing the flat metal plate using an embossing mold roller of an embossing machine to form an embossed metal plate;

And a third step of supplying the embossed metal sheet to the tubular machine to produce an embossed pipe having a welded portion in the longitudinal direction through a curving process and a circularizing process and welding the welded portion of the embossed pipe to complete the embossed pipe However,

The embossed metal plate has an embossed structure on the front side and has both sides of a narrow plane so that both side faces of the embossed metal plate abut each other through the curving and circularizing process of the gutters to form a welded portion having a V- And the embossed pipe is completed by melting and fusing the V-shaped groove by welding. The present invention also provides an embossed pipe manufacturing method using the embossed metal plate.

The apparatus for manufacturing an embossed pipe using the embossed metal plate according to the present invention and the method for manufacturing an embossed pipe using the same have the following effects.

first. It is possible to prevent deformation problems caused by dents and embossing of the embossing pattern generated when the embossing pipe is manufactured from the embossed metal plate by using a general tubular machine.

second. In order to solve the dimensional instability due to the elongation of the width of the embossed metal plate and to form the embossed pipe by using the embossed metal plate forming the curved surface of the concave and the convex due to the embossing process, By solving this impossible problem, it is possible to provide a embossed pipe with a finely finished finish by minimizing the seam chest and preventing the seam chest from appearing outside.

third. It is possible to provide an embossing pipe having a delicate and elaborate embossing pattern as a whole by forming the inclined surface directly on the embossing roller so that the welding through the V-shaped groove of the welded portion formed by abutting the both side surfaces of the embossed metal sheet is very neat. .

fourth. By combining the embossing machine including the embossing roller embossing embossing with continuous repetition characteristics and the conventional sewing machine, the productivity can be maximized by having a productivity higher than five times that of the conventional embossing pipe producing device.

fifth. Compared with existing mechanical structure pipes, the compressive load is 40 ~ 50% higher and the tensile load is 10 ~ 20%, which enhances the mechanical properties.

Sixth. It has enhanced durability, has a beautiful aesthetic appearance, and has a hand slip prevention effect.

Seventh. The appearance of the embossed pipe can be changed into various patterns according to the market needs.

Eighth. The effect of temperature change (cooling, warming) on the cooling water and hot water piping system due to the flow resistance of the fluid can be expected by forming the inside irregularity of the pipe.

1 is an overall perspective view of an embossing pipe manufacturing apparatus according to the present invention;
Fig. 2 is a perspective view of a first embodiment of an embossing mold roller constituting the embossing pipe manufacturing apparatus of the present invention. Fig.
3 is a front view of a first embodiment of an embossing mold roller constituting the embossing pipe manufacturing apparatus of the present invention.
4 is a front view of a second embodiment of an embossing mold roller constituting the embossing pipe manufacturing apparatus of the present invention.
Fig. 5 is a front view of a third embodiment of an embossing mold roller constituting the embossing pipe manufacturing apparatus of the present invention; Fig.
6 is a front view of a fourth embodiment of the embossing mold roller constituting the embossing pipe manufacturing apparatus of the present invention.
7 is a front view of a fifth embodiment of an embossing mold roller constituting the embossing pipe manufacturing apparatus of the present invention.
8 is a front view of a sixth embodiment of the embossing mold roller constituting the embossing pipe manufacturing apparatus of the present invention.
Fig. 9 is a front view of an embossed metal plate manufactured using the embossing mold roller of the first embodiment constituting the embossing pipe manufacturing apparatus of the present invention. Fig.
Fig. 10 is a front view of an embossed metal sheet produced using the embossing mold roller of the third embodiment constituting the embossing pipe manufacturing apparatus of the present invention; Fig.
Fig. 11 is a front view of an embossed metal sheet produced using the embossing mold roller of the fifth embodiment constituting the embossing pipe manufacturing apparatus of the present invention. Fig.
Fig. 12 is a front view of an embossed metal plate manufactured using the embossing mold roller of the sixth embodiment constituting the embossing pipe manufacturing apparatus of the present invention. Fig.
Fig. 13 is a side cross-sectional view of an embossed metal plate made using the embossing mold roller of the sixth embodiment constituting the embossing pipe manufacturing apparatus of the present invention. Fig.
FIG. 14 is a schematic illustration of a welded front cross-section of an embossed metal pipe made using the embossed metal sheet of the present invention.
Figure 15 is a schematic illustration of a welded side cross-section of an embossed metal pipe made using the embossed metal sheet of the present invention.
16 is a side cross-sectional view showing another embodiment of the embossed metal sheet according to the present invention.
17 is a perspective view of an embossed metal pipe made using the embossed metal plate shown in Fig.
18 is a side cross-sectional view illustrating various forms of welded joints formed in the embossed metal pipe of FIG. 14;
19 is a photograph of an actual product of an embossed metal pipe according to the present invention.
20 is a view showing a specimen shape before SUS304 PIPE (? 50.8 X 1.5T) tensile test.
21 is a view showing a specimen shape before SUS304 PIPE (? 38.1 X 1.1T) tensile test.
22 is a view showing a specimen shape before SUS304 PIPE (? 50.8 X 1.5T) compression test;
23 is a view showing a specimen shape before SUS304 PIPE (? 38.1 X 1.1T) compression test;
24 is a view showing a tensile load test process.
25 is a view showing a compression load test process.

Hereinafter, the technical construction according to the present invention will be described in detail with reference to the drawings.

As shown in Figure 1,

An embossing pipe manufacturing apparatus for facilitating welding of both sides of an embossed metal sheet according to the present invention comprises an uncoiler 1 for providing a flat metal sheet 100,

A centering guide roller 2 for guiding the flat metal plate 100 supplied from the uncoiler 1 to the embossing machine 3 at the rear end,

An embossing machine 3 for embossing the flat metal plate 100 supplied through the centering guide roller 2 to form the embossed metal plate 100 '

The embossed metal plate 100 'supplied through the embossing machine 3 is curved and circularized to manufacture the embossed pipe 200 having the welded portions 201 in the longitudinal direction, And a tubular pipe (4) for completing the embossed pipe (200) by welding the welded joint (201) of the pipe (200)

The embossing machine 3 includes an embossing mold roller 30 configured to engage with an upper roller 31 on which an embossing pattern of a embossing pattern is formed and a lower roller 32 on which an embossing pattern of an embossing pattern is formed,

A frame portion 33 for supporting the embossing mold roller 30 while forming an exoskeleton,

And a hydraulic cylinder (34) installed at an upper end of the frame part (33)

The upper roller 31 includes a roller body 311,

A rotary shaft 312 installed at the center of both side surfaces of the roller body 311,

An embossed pattern portion 313 formed on the surface of the roller body 311,

And first left and right end portions 315 and 316 formed to be lower than the embossed pattern portion 313 of the embossed pattern along both side edges of the roller body 311,

The lower roller 32 includes a roller body 321,

A rotation shaft 322 formed at the center of both side surfaces of the roller body 321,

An embossed pattern portion 323 formed on the surface of the roller body 321,

And second left and right end portions 325 and 326 formed to be higher than embossed pattern portions 323 of the embossed pattern along both sides of the roller body 321.

The planar metal plate 100 wound on the uncoiler 1 may be any one selected from a stainless steel plate, an aluminum plate, a brass plate, a copper plate, and a brazing plate.

The stainless steel plate is advantageous in terms of deterioration and strength as compared with the other flat metal plate 100.

The aluminum plate, the brass plate, the copper plate, and the iron plate are excellent in ductility and excellent in embossing effect on the delicate and sophisticated side than the stainless steel plate, and are easy to work and have a small power consumption.

The planar metal plate 100 wound on the uncoiler 1 has a thickness of 0.5 mm to 5 mm and a hardness of 100 Hv to 550 Hv.

When the thickness is less than 0.5 mm, the thickness of the embossing pattern protruding from the embossed pattern by the embossing process becomes thinner than 0.2 mm to 0.3 mm or less, so that the pressure resistance is weakened in the course of passing through the male- In the case of exceeding 5 mm, the power consumption in manufacturing the embossed mold pipe through curving and rounding through the embossing process and the tubular machine is drastically increased, and the embossing pattern In addition, the flat metal plate 100 preferably has a thickness within a range of 0.5 mm to 5 mm since a malfunction is not generated properly.

The numerical range that can withstand the pressure of the roller during the passage of the hardness through the tubular machine 4 is suggested. The curved surface can be achieved without deforming the embossing pattern only by maintaining the hardness range as described above. It is possible to prevent the occurrence of cracks or ruptures in the embossing pattern due to the mechanical impact of the tubular unit 4 in advance.

Particularly, among the various kinds of flat metal plates 100, since the stainless steel plate has a softness of 100 Hv to 250 Hv in the hardness range, the embossing effect can be enhanced during the embossing process by the embossing machine 3 to form a delicate and elaborate embossing pattern have.

The width of the stainless steel plate is not different after being embossed by the embossing machine 3 and embossed by the embossing machine 3.

However, when the embossed stainless steel plate is passed through the tubular unit 4, the width of the embossed stainless steel plate is increased by 0.1 to 0.5% compared to the embossed stainless steel plate before the passage. Therefore, when the unevenness is not severe, the width change ratio of the embossed stainless steel plate becomes small.

The embossed finish of the embossed stainless steel plate was measured by subtracting the thickness of the stainless steel plate used to obtain the embossed stainless steel plate from the bottom of the embossed stainless steel plate to the top of the embossed pattern (hereinafter referred to as 'embossed finish' ).

In order to obtain the maximum embossing of the embossed stainless steel plate, it may be embossed with an embossing treatment such as the thickness of the stainless steel plate. At this time, as the degree of embossing is increased, the width of the embossed stainless steel plate increases in the tubular machine, and the width of the embossed stainless steel plate decreases as the degree of embossing becomes smaller.

Since the width of the embossed stainless steel plate corresponding to the inner diameter of the embossed metal pipe is predetermined, it is preferable that the width of the stainless steel plate introduced into the embossing machine 3 is reduced within the range of 0.1 to 0.5%.

The embossing machine 3 is embossed on both sides of the flat metal plate 100 supplied from the uncoiler 1 to manufacture an embossed metal plate 100 '.

As shown in FIGS. 2 to 8, the embossing mold roller 30 constituting the embossing machine 3 can be divided into six embodiments according to its shape and structure.

The embossing mold roller 30 shown in Figs. 2 and 3 is the first embodiment.

The embossing mold roller 30

A roller body 311,

A rotary shaft 312 installed at the center of both side surfaces of the roller body 311,

An embossed pattern portion 313 formed on the surface of the roller body 311,

An upper roller 31 including first and second left and right end portions 315 and 316 formed to be lower than the embossed pattern portion 313 of the embossed pattern along both side edges of the roller body 311;

A roller body 321,

A rotation shaft 322 formed at the center of both side surfaces of the roller body 321,

An embossed pattern portion 323 formed on the surface of the roller body 321,

And a lower roller 32 including second left and right end portions 325 and 326 formed to be higher than the embossed pattern portion 323 of the engraved pattern along both edges of the roller body 321.

The upper roller 31 and the lower roller 32 of the first embodiment are provided with a belt-like groove portion 314 for partitioning the embossing pattern portion 313 with embossing pattern and the embossing pattern portion 323 with embossing pattern, 324 are not formed.

The upper roller 31 and the lower roller 32 of the second embodiment shown in FIG. 4 are provided with a strip-shaped groove portion 314 for separating the embossed pattern portion 313 of the embossed pattern and the embossed pattern portion 323 of the embossed pattern, And a strip-shaped projection 324 are formed.

The embossing mold roller 30 of the second embodiment

A roller body 311,

A rotary shaft 312 installed at the center of both side surfaces of the roller body 311,

An embossed pattern portion 313 formed on the surface of the roller body 311,

Shaped groove portion 314 which is formed along the roller rotation direction and is lower than the embossed pattern portion 313 formed on the surface of the roller body 311 so as to divide the embossed pattern portion 313 of the embossed pattern at regular intervals )Wow,

An upper roller 31 including first and second left and right end portions 315 and 316 formed to be lower than the embossed pattern portion 313 of the embossed pattern along both side edges of the roller body 311;

A roller body 321,

A rotation shaft 322 formed at the center of both side surfaces of the roller body 321,

An embossed pattern portion 323 formed on the surface of the roller body 321,

Shaped projections 324 which are formed along the roller rotation direction higher than the embossed pattern portions 323 formed on the surface of the roller body 321 so as to divide the embossed pattern portions 323 of the engraved patterns at regular intervals )Wow,

And a lower roller 32 including second left and right end portions 325 and 326 formed to be higher than the embossed pattern portion 323 of the engraved pattern along both edges of the roller body 321.

At this time, the projecting portion 324 of the lower roller 32 is configured to be inserted into the groove portion 314 of the upper roller 31.

The difference between the embossing mold roller 30 of the first and second embodiments and the embossing mold roller 30 of the third embodiment lies in the structure of both sides of the roller body 311 of the upper roller 31. The left and right inclined surface forming portions 317 and 318 are formed at both side ends of the roller body 311 of the upper roller 31 constituting the embossing mold roller 30 of the third embodiment. Fig. 5 shows the embossing mold roller 30 of the third embodiment.

The embossing mold roller 30 of the third embodiment

A roller body 311,

A rotating shaft 312 formed at the center of both side surfaces of the roller body 311,

An embossed pattern portion 313 formed on the surface of the roller body 311,

First left and right end portions 315 and 316 formed to be lower than the embossed pattern portion 313 of the embossed pattern along both side edges of the roller body 311,

The first left and extends outward laterally from a right end (315, 316) being made integral, it is formed to project outwardly oblique direction from the point that extends in the first left and right ends (315, 316), the lower the upper roller comprises a second left and right ends (325, 326) and rotated by a flat-screen left and forming the right side inclined surface portion for forming the opposite side surfaces of the metal plate 100 in the oblique direction 317 and 318 in engagement of the roller 32 (31);

A roller body 321,

A rotation shaft 322 formed at the center of both side surfaces of the roller body 321,

An embossed pattern portion 323 formed on the surface of the roller body 321,

And a lower roller 32 including second left and right end portions 325 and 326 formed to be higher than the embossed pattern portion 323 of the engraved pattern along both edges of the roller body 321.

The upper roller 31 and the lower roller 32 of the third embodiment are provided with a strip-shaped groove portion 314 for partitioning the embossed pattern portion 313 with embossed pattern and the embossed pattern portion 323 with embossed pattern, 324 are not formed.

The upper roller 31 and the lower roller 32 of the fourth embodiment shown in Fig. 6 are provided with a strip-shaped groove portion 314 for separating the embossed pattern portion 313 of the embossed pattern and the embossed pattern portion 323 of the embossed pattern, And a strip-shaped projection 324 are formed.

The embossing mold roller 30 of the fourth embodiment

A roller body 311,

A rotating shaft 312 formed at the center of both side surfaces of the roller body 311,

An embossed pattern portion 313 formed on the surface of the roller body 311,

Shaped groove portion 314 which is formed along the roller rotation direction and is lower than the embossed pattern portion 313 formed on the surface of the roller body 311 so as to divide the embossed pattern portion 313 of the embossed pattern at regular intervals )Wow,

First left and right end portions 315 and 316 formed to be lower than the embossed pattern portion 313 of the embossed pattern along both side edges of the roller body 311,

The first left and extends outward laterally from a right end (315, 316) being made integral, it is formed to project outwardly oblique direction from the point that extends in the first left and right ends (315, 316), the lower the upper roller comprises a second left and right ends (325, 326) and rotated by a flat-screen left and forming the right side inclined surface portion for forming the opposite side surfaces of the metal plate 100 in the oblique direction 317 and 318 in engagement of the roller 32 (31);

A roller body 321,

A rotation shaft 322 formed at the center of both side surfaces of the roller body 321,

An embossed pattern portion 323 formed on the surface of the roller body 321,

Shaped projections 324 which are formed along the roller rotation direction higher than the embossed pattern portions 323 formed on the surface of the roller body 321 so as to divide the embossed pattern portions 323 of the engraved patterns at regular intervals )Wow,

And a lower roller 32 including second left and right end portions 325 and 326 formed to be higher than the embossed pattern portion 323 of the engraved pattern along both edges of the roller body 321.

The embossing mold roller 30 of the fifth and sixth embodiments is configured in an embossing pattern different from the embossing mold roller 30 shown in the first to fourth embodiments.

As shown in Fig. 7, the embossing mold roller 30 of the fifth embodiment has substantially the same structure as the embossing mold roller 30 of the second embodiment, only with a difference in embossing pattern.

As shown in Fig. 8, the embossing mold roller 30 of the sixth embodiment has substantially the same structure as the embossing mold roller 30 of the fourth embodiment, with only a difference in embossing pattern.

Hereinafter, the structure of each part of the embossing mold roller 30 shown in the first to sixth embodiments will be described in more detail.

The embossing mold roller 30 is configured such that the upper roller 31 and the lower roller 32 of the high strength metal material make an intermeshing rotation.

The upper and lower rollers 31 and 32 are formed with embossed pattern portions 313 and embossed pattern portions 323 on the embossed pattern portion 313 and the embossed pattern portion 323, The engraved embossing pattern portion 323 is formed to be engaged with each other.

At this time, the pattern pattern has a direct influence on the aesthetics of the embossed metal sheet formed by the self-pattern and the volume feeling by the yang-yang. At this time, the pattern pattern can be set according to the symbol.

As a specific example,

The embossed pattern portions 313 and 323 shown in FIGS. 2 to 6 are patterned in the shape of a rectangular pattern having rounded ends at both ends,

The embossed pattern portions 313 and 323 shown in FIGS. 7 to 8 have a pattern having a rectangular-shaped protrusion.

The embossing mold roller 30 according to the first and third embodiments shown in Figs. 2, 3 and 5 and the embossing mold roller 30 according to the fifth and sixth embodiments shown in Figs. 4, 6 to 8, The difference in the width of the lower roller 30 between the upper roller 31 and the lower roller 32 is the presence or absence of the narrow groove shaped groove 314 and the narrow belt shaped protrusion 324 formed in the lower roller 32.

The strip-shaped groove 314 and the strip-shaped protrusion 324 are configured to rotate while the upper roller 31 and the lower roller 32 rotate while interposing the flat metal plate 100 therebetween. At this time, it means that the strip-shaped protrusion 314 rotates inward while pushing the metal plate in the direction of the groove 314.

The pattern having the embossing pattern is partitioned along the circumferential surface at regular intervals by the narrow groove-shaped groove portion 314 and the small belt-shaped protrusion portion 324 formed as described above. Due to the narrow groove portion 314 thus partitioned You can give a decorative effect with the embossing pattern.

An important configuration of the embossing mold roller 30 according to the present invention is that the first left and right end portions 315 formed at both side ends of the upper roller 31 and the lower roller 32 , 316 and the second left and right end portions 325, 326, respectively.

The importance of the first left and right end portions 315 and 316 and the second left and right end portions 325 and 326 is that the welding problem that occurs when the embossed pipe 200 is manufactured using the embossed metal plate 100 ' Resolved.

That is, the first left and right end portions 315 and 316 and the second left and right end portions 325 and 326 formed on both sides of the embossing mold roller 1 are provided with a small plane on both sides of the embossed metal plate The embossing pattern of the concave-convex shape formed on the embossed metal plate may be distorted when the embossing pipe is manufactured using the tubular machine for manufacturing the metal pipe of the smooth surface in the past, or the embossing pattern of the concave- It is possible to solve the problem that the welding can not be performed due to the inconsistency.

In addition, the important technical features are the inclined surface structure formed on both side surfaces of the flat metal plate 100 to be inserted into the embossing mold roller 30 of the embossing machine 3.

The inclined surface is processed by the embossing mold roller (30) while the flat metal plate (100) is put in the embossing process.

The first and second left and right end portions 315 and 316 and the second left and right end portions 325 and 326 can be embossed by the first and second left and right end portions 325 and 326 even if both side surfaces of the planar metal plate 100 do not form an inclined surface, The embossed metal plate 100 'has a small plane on both sides of the metal plate 100', and both sides of the embossed metal plate 100 ' The V-shaped groove is formed naturally at the point where the both side surfaces are in contact with each other due to the difference between the inner diameter and the outer diameter. However, since the width of the V-shaped groove may be considerably narrowed depending on the thickness of the planar metal plate 100, It is easy to melt and fuse, so it is possible to weld firmly and neatly.

As shown in FIGS. 10 and 12, the flat metal plate 100 is put into the embossing mold roller 30 to produce an embossed metal plate 100 ', both ends of which are inclined.

FIG. 13 shows an embossed metal plate having both end portions inclined at both ends thereof.

As shown in FIGS. 10 and 12, the embossing process of the flat metal plate using the embossing mold roller 30 can be performed at both ends of the inclined surface at the same time as the left and right sloped surfaces formed on both sides of the upper roller 31 317 and 318, respectively.

And the left and right inclined surface forming portion (317, 318) has left and right ends 315 and 316 and forms included angle (θ1) is as yirum to 110 ~ 135 °, the left and right inclined surface forming portion (317, 318) And the inclined surfaces of both ends of the metal plate formed through the V-shaped groove 201a are in contact with each other to form a welded joint portion 201 having a V-shaped groove 201a. The V-shaped groove 201a has an internal angle?

In this way, when the embossed metal plate is manufactured, the inclined surfaces are formed at both ends of the metal plate, so that the circular pipe is formed through the curved surface of the tubular unit and the circularizing roller, and the inclined surface of the narrow plane comes into contact with the inclined surface, And the welded joint 201 of the groove portion 104 is formed by welding the formed V-shaped groove 201a by melting and welding the self-material. As a result, the welded joint 201 and the groove portion 201, (104) serves to improve aesthetics along with pattern patterns by forming a pattern of a kind.

The groove portion 314 and the welded joint portion 201 have a small width, and more specifically, a width of 2.0 mm or less.

In order to keep the width of the welded portion 201 equal to the width of the groove 314 and the width of the first left and right end portions 315 and 316 formed on both sides of the upper roller 10 according to the present invention L1 maintains a half length of the width L2 of the groove portion 104. [

The entire width of the first left end 315 and the first right end 316 is the same as the entire width of the groove 104.

14 and 15 are side cross-sectional schematic views of the embossing pipe 200 manufactured using the embossed metal plate 100 'molded according to the present invention, in which the welding is shown around the female part 201 and the V-shaped groove 201a .

Fig. 14 is a side cross-sectional schematic view of the embossing pipe 200 before welding, and Fig. 15 shows a state in which the V-shaped groove 201a shown in Fig. 14 is welded and fused.

14 and 15, the embossed metal plate 100 'manufactured using the embossing mold roller 30 of the embossing machine 3 according to the present invention is put into the tubular machine 4 to form an embossing pipe 200 are manufactured so that the embossed pipe 200 is formed with a welded portion 201 in the longitudinal direction and a small V-shaped groove 201a is formed in the welded portion 201 to form the V-shaped groove 201a The same grooves as those of the division grooves 200a formed at regular intervals on the circumferential surface of the embossing pipe 200 are formed.

As a result, the welded joint portion 201 formed in the longitudinal direction of the embossing pipe 200 is integrally connected through a neat and precise welding process, and at the same time, the same joint groove is formed with the other partition grooves 200a for partitioning the embossing pattern It has an advantage that a decorative effect can be imposed by exhibiting a design aesthetic feeling.

16 is a side sectional view showing another embodiment of the embossed metal sheet 100 'according to the present invention and FIG. 17 is a perspective view of the embossed pipe 200 manufactured using the embossed metal sheet 100' shown in FIG. 16 .

16 and 17, the embossed metal plate 100 'according to the present invention and the embossed pipe 200 using the embossed metal plate 100' can be manufactured within the scope of the embossed pipe manufacturing apparatus and the embossed pipe manufacturing method disclosed in the present invention It can be manufactured in various forms.

Fig. 18 illustrates that the welded joint 201 of the embodiment shown in Fig. 14 can be deformed in various forms. In addition to the shape shown in FIG. 18, it is apparent that the shape of the welded portion 201 including the V-shaped groove 201a may be variously presented.

The tubular machine 4 is a device for completing the embossed pipe 200 through the curving, circularizing and welding processes of the embossed metal plate 100 '.

The tubular unit 4 may be a conventional tubular unit 4 which has been conventionally disclosed. The present invention is characterized in that an embossing pipe 200 is manufactured from an embossed metal plate 100 'by forming an embossing pipe manufacturing apparatus by addressing the embossing machine 3 and the pipe making machine 4 proposed in the present invention, The embossed pipe is formed by using the embossed metal plate which forms the curved surface of the concavo-convex due to the embossing process, and then the joint is welded to prevent the deformation problem caused by the distortion and the tumbling phenomenon of the pattern and to solve the dimensional instability caused by the extension of the embossed metal plate. The present invention provides an embossing pipe 200 which is finished by finishing the joint so that the joint can not be welded due to the inconsistency of the joint due to the curved surface of the concave and convex portions and the joint chest is minimized while the joint chest is not exposed to the outside have.

1, the tubular machine 4 is subjected to a curving process through a first curving roller 41, a second curving roller 42 and a third curving roller 43, The embossing pipe is produced in the form of a pipe by passing through the rounding process through the rounding roller 44, the second rounding roller 45 and the third rounding roller 45, And a V-shaped groove 201a 'is formed at an inner center of the joint groove 201. The V-

Next, the embossed pipe 200 according to the present invention is completed by melting and fusing the V-shaped groove 201a 'using a welding device 46.

Hereinafter, an embossing pipe manufacturing method using the embossing pipe manufacturing apparatus of the present invention will be described.

The method of manufacturing an embossed pipe according to the present invention

A first step of supplying the planar metal plate 100 from the uncoiler 1 via the centering guide roller 2 to the embossing machine 3,

A second step of embossing the planar metal plate 100 using the embossing mold roller 30 of the embossing machine 3 and shaping the planar metal plate 100 into an embossed metal plate 100 '

The embossed metal plate 100 'is supplied to the pipe making machine 4 to form an embossed pipe 200 having a welded part 201 in the longitudinal direction through a curving process and a circularization process, And a third step of welding the welded joint 201 to complete the embossed pipe 200,

The embossed metal plate 100 'has an embossed structure on its front side and its side edges are slightly flattened so that both sides of the embossed metal plate 100' And the welded joint 201 having the V-shaped groove 201a is formed. The embossed pipe 200 is completed by melt-welding the V-shaped groove 201a by welding.

At this time, the flat metal plate 100 is one selected from a stainless steel plate, an aluminum plate, a brass plate, a copper plate, and a soft iron plate and has a thickness of 0.5 mm to 5 mm and a hardness of 100 Hv to 550 Hv. The reason for limiting the range of such thickness and hardness is as described above.

The flat metal plate 100 is formed into an embossed metal plate 100 'through an embossing mold roller 30 of the embossing machine 3. At this time, both side ends of the embossed metal plate 100 'form a plane having a predetermined width. Through the above-mentioned planar construction, the welding is performed through the V-shaped groove 201a of the welded joint 201 formed by manufacturing the embossed pipe. It can be made easy and neat.

The embossed metal plate 100 'is introduced into the tubular machine 4 and the first curving roller 41, the second curving roller 42 and the third curving roller 43 constituting the tubular machine 4 And sequentially rounds the first rounding roller 44, the second rounding roller 45, and the third rounding roller 45 to form a circular shape, Thereby forming an embossing pipe.

At this time, the embossing pipe completed through the rounding process is formed with a joint groove 201 in the longitudinal direction, and a V-shaped groove 201a 'is formed at an inner center of the joint groove 201.

Next, the embossed pipe 200 according to the present invention is completed by melting and fusing the V-shaped groove 201a 'using a welding device 46.

In addition, both side surfaces of the embossed metal plate 100 'are inclined inwardly so that a V-shaped groove 201a formed by abutting opposite sides of the embossed metal plate 100' is formed on the embossed metal plate 100 ' The width of the V-shaped grooves 201a may be too small to be easily welded, so that the V-shaped grooves 201a formed by contacting both side surfaces of the embossed metal plate 100 'through the inclined surfaces are formed to be wider than a certain width Welding is facilitated to ensure clean and robust welding.

FIG. 19 is a photograph of an actual product of the embossing pipe according to the present invention, and the tension and compression load of the embossing pipe according to the present invention will be described.

The tensile and compressive load tests of the embossing pipe 200 (SUS304 PIPE) manufactured according to the present invention were conducted by the Korea Chemical Fusion Test Institute (Test No. TBP-000041, sample name: SUS304 PIPE) The following results were obtained.

[ Test Example 1 ]

1. Sample

Embossing pipe (metal test piece (SUS304 PIPE)) Samples are shown in Fig. 20 to Fig. The test samples were classified into Test Examples 1 to 3 according to the present invention and Comparative Examples 1 to 3 according to the outer diameter and shape, and the classification is shown in Table 1 below.

Classification of sample Sample classification Name of sample Test Items

SUS304 PIPE
(? 50.8 X 1.5T)
Test Example 1 Tensile load and compressive load Test Example 2 Tensile load and compressive load Test Example 3 Tensile load and compressive load Comparative Example 1 (Company B) Tensile load and compressive load Comparative Example 2 (J Company) Tensile load and compressive load Comparative Example 3 (K Company) Tensile load and compressive load

SUS304 PIPE
(? 38.1 X 1.1T) Test Example 1 Tensile load and compressive load Test Example 2 Tensile load and compressive load Test Example 3 Tensile load and compressive load Comparative Example 1 (Company B) Tensile load and compressive load Comparative Example 2 (J Company) Tensile load and compressive load Comparative Example 3 (K Company) Tensile load and compressive load

2. Test conditions and method

The tensile and compressive load tests of the embossing pipe 200 (metal specimen (SUS304 PIPE)) are shown in Table 2 below.

Test Methods Test Items Test Methods Test Specification
Tensile load

-. Test speed: 10 mm / min
KS B 5541: 1985


Compressive load
-. Test speed: 10 mm / min
-. SUS304 PIPE (φ50.8 X 1.5T): 20 mm displacement
Compressive load measurement
-. SUS304 PIPE (φ38.1 X 1.1T): at 15 mm displacement
Compressive load measurement



KS B 5541: 1985

3. Test results

1) Examination process

Fig. 24 shows a tensile load test process, and Fig. 25 shows a compressive load test process.

2) Test result

The tensile and compressive load test results are shown in Table 3 below.

Tensile and compressive loads Sample classification Name of sample Tensile load (kN) Compressive load (N)

SUS304 PIPE
(? 50.8 X 1.5T)
Test Example 1 174.8 6307 Test Example 2 177.7 6587 Test Example 3 179.6 6419 Comparative Example 1 (Company B) 157.6 5439 Comparative Example 2 (J Company) 167.1 4873 Comparative Example 3 (K Company) 157.6 4617

SUS304 PIPE
(? 38.1 X 1.1T) Test Example 1 98.5 4292 Test Example 2 100.3 4310 Test Example 3 103.7 5208 Comparative Example 1 (Company B) 89.0 3266 Comparative Example 2 (J Company) 90.0 3668 Comparative Example 3 (K Company) 88.3 3237

From the results of the compression load test (N), it can be seen that the embossing pipe according to the present invention is 40 to 50% stronger than the existing structure pipes (Comparative Examples 1 to 3).

From the results of the tensile load (kN) test, it can be seen that the embossing pipe according to the present invention is 10 to 20% stronger than the existing structure pipes (Comparative Examples 1 to 3).

The embossed pipe manufacturing apparatus and the method of manufacturing an embossed pipe using the same according to the present invention facilitate the welding of both sides of the embossed metal plate. The embossed metal plate can be manufactured by embossed metal plate It is possible to solve the problem that welding can not be performed due to the inconsistency of the joint due to the curved surface of the concave and the convex so as to minimize the joint chest and prevent the joint chest from appearing outside It is possible to provide an embossed pipe having a finely finished finish.

By forming the embossing pipe manufacturing apparatus by combining the embossing machine according to the present invention and a conventional pipe making machine, the productivity of the embossing pipe producing apparatus is five times higher than that of the conventional embossing pipe producing apparatus.

In addition, it has a durable and lightweight aesthetic appearance, which makes it possible to reduce the weight of multipurpose parts in the existing machine structural pipe market. In addition, it is possible to use the embossing pipe, which is a design product with aesthetic appearance, With the launch of the product, it is possible to meet the market demand and create new demand, and it is expected that cooling and warming effect can be increased through interference of water flow such as cooling water and hot water piping system due to the unevenness inside the pipe.

The embossing pipe according to the present invention having such a function can be used in a railway, a ktx, a subway, a light rail or the like, a hand rail and a guide rail in a train; Intra-bus hand rails and guide rails; Equipment such as railings, hand rails, etc. in ships; Hand rails and guide rails for yachts; High-grade structural pipes such as building materials, balustrade, bollard, bellows, hanger, electronic handle; Cooling water and hot water related piping material; It can be applied to various fields such as general structure and is highly available for industrial use.

1: Uncoiler 2: Centering guide roller
3: embossing machine 4: sewing machine
31: upper roller 32: lower roller
30: embossing mold roller 33: frame part
34: Hydraulic cylinder 100: Flat metal plate
100 ': embossed metal plate 201: welded joint
200: embossing pipe 201: welded joint
311, 321: Roller body 312, 322:
313: Embossing embossing pattern portion 315: First left end
316: first right end 323: engraved pattern portion of engraved
325: second left end 326: second right end

Claims (7)

An uncoiler 1 for providing a flat metal plate 100,
A centering guide roller 2 for guiding the flat metal plate 100 supplied from the uncoiler 1 to the embossing machine 3 at the rear end,
An embossing machine 3 for embossing the flat metal plate 100 supplied through the centering guide roller 2 to form the embossed metal plate 100 '
The embossed metal plate 100 'supplied through the embossing machine 3 is curved and circularized to manufacture the embossed pipe 200 having the welded portions 201 in the longitudinal direction, And a tubular pipe (4) for completing the embossed pipe (200) by welding the welded joint (201) of the pipe (200)
The embossing machine 3 includes an embossing mold roller 30 configured to engage with an upper roller 31 on which an embossing pattern of a embossing pattern is formed and a lower roller 32 on which an embossing pattern of an embossing pattern is formed,
A frame portion 33 for supporting the embossing mold roller 30 while forming an exoskeleton,
And a hydraulic cylinder (34) installed at an upper end of the frame part (33)
The upper roller 31 includes a roller body 311,
A rotary shaft 312 installed at the center of both side surfaces of the roller body 311,
And an embossed pattern portion 313 formed on the surface of the roller body 311,
Shaped groove portion 314 which is formed along the roller rotation direction and is lower than the embossed pattern portion 313 formed on the surface of the roller body 311 so as to divide the embossed pattern portion 313 of the embossed pattern at regular intervals Is formed,
The lower roller 32 includes a roller body 321,
A rotation shaft 322 formed at the center of both side surfaces of the roller body 321,
And an engraved pattern portion 323 formed on the surface of the roller body 321,
Shaped protrusion 324 which is formed along the roller rotation direction higher than the embossed pattern portion 323 formed on the surface of the roller body 321 and which divides the embossed pattern portion 323 of the embossed pattern at regular intervals, Respectively,
And the projecting portion 324 is inserted into the groove portion 314,

The upper roller 31 includes first and second left and right end portions 315 and 316 formed to be lower than the embossed pattern portion 313 of the embossed pattern 313 along both edges of the roller body 311, The width L1 of the right end portions 315 and 316 is kept to be 1/2 of the width L2 of the groove portion 314,
And the lower roller 32 includes second left and right end portions 325 and 326 formed to be higher than the embossed pattern portion 323 of the engraved pattern along both side edges of the roller body 321. [ An embossing pipe manufacturing apparatus for facilitating welding of both sides of a metal plate.
The method according to claim 1,
The upper roller 31 extends from the first left and right end portions 315 and 316 in an outer transverse direction to form an integral body and extends from a point extending from the first left and right end portions 315 and 316 to an outer oblique direction a protrusion is formed, the second left and right ends 325, 326 and rotating by left and right inclined surfaces for forming the both side surfaces in an oblique direction of the flat metal plate 100, forming part 317 and 318 in engagement of the lower roller 32 Further comprising:

The left and right inclined plane forming portions 317 and 318 have an angle θ1 formed by the left and right end portions 315 and 316 of 110 to 135 ° so that the left and right inclined plane forming portions 317 and 318 And the inclined surfaces of both ends of the metal plate formed through the metal plate are in contact with each other to form a welded portion 201 having a V-shaped groove 201a, and the V-shaped groove 201a has an internal angle? 2 of 20 to 90 °. To facilitate welding of both sides of the embossed metal sheet.
delete A first step of supplying the planar metal plate 100 from the uncoiler 1 via the centering guide roller 2 to the embossing machine 3,
A second step of embossing the planar metal plate 100 using the embossing mold roller 30 of the embossing machine 3 and shaping the planar metal plate 100 into an embossed metal plate 100 '
The embossed metal plate 100 'is supplied to the pipe making machine 4 to form an embossed pipe 200 having a welded part 201 in the longitudinal direction through a curving process and a circularization process, And a third step of welding the welded joint part (201) to complete the embossed pipe (200)

The embossed metal plate 100 'is one selected from a stainless steel plate, an aluminum plate, a brass plate, a copper plate and a copper plate having a thickness of 0.5 mm to 5 mm and a hardness of 100 Hv to 550 Hv. Both sides of the embossed metal plate 100 are slightly flattened and both sides of the embossed metal plate 100 are inclined inwardly so that both sides of the embossed metal plate 100 ' And the embossed pipe 200 is completed by melting and welding the V-shaped groove 201a by welding. The embossed metal plate 201 is formed of a metal plate, To facilitate welding on both sides of the embossed pipe.





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