CN111432953A - Female and male embossing die roller for manufacturing mutually-meshed structure of embossed metal pipe - Google Patents
Female and male embossing die roller for manufacturing mutually-meshed structure of embossed metal pipe Download PDFInfo
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- CN111432953A CN111432953A CN201880071451.0A CN201880071451A CN111432953A CN 111432953 A CN111432953 A CN 111432953A CN 201880071451 A CN201880071451 A CN 201880071451A CN 111432953 A CN111432953 A CN 111432953A
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- roller
- male
- embossed
- female
- embossing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
- B21H8/00—Rolling metal of indefinite length in repetitive shapes specially designed for the manufacture of particular objects, e.g. checkered sheets
- B21H8/005—Embossing sheets or rolls
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/08—Making tubes with welded or soldered seams
- B21C37/0818—Manufacture of tubes by drawing of strip material through dies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/08—Making tubes with welded or soldered seams
- B21C37/083—Supply, or operations combined with supply, of strip material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/15—Making tubes of special shape; Making tube fittings
- B21C37/156—Making tubes with wall irregularities
- B21C37/158—Protrusions, e.g. dimples
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
- B21H8/00—Rolling metal of indefinite length in repetitive shapes specially designed for the manufacture of particular objects, e.g. checkered sheets
- B21H8/02—Rolls of special shape
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The invention relates to a male and female embossing die roller capable of manufacturing an interlocking structure of an embossing metal plate, aiming at solving the following problems: when the pipe mill for manufacturing the metal pipe is used for manufacturing the embossed pipe, in the process of curving a male-female meshing horizontal roller, and rounding a meshing horizontal roller and a vertical roller through the pipe mill, embossed patterns of concave-convex shapes formed on an embossed metal plate are deformed, so that welding cannot be performed due to inconsistency of the concave-convex embossed patterns, and a plane with a width smaller than that of an embossed pattern layer is formed in the length direction of the edges of two sides of the embossed metal plate, so that welding of a connecting part in the length direction of the embossed metal pipe can be realized, grooves are formed in the welding connecting part, and the embossed metal plate without welding scars can be manufactured.
Description
Technical Field
The invention relates to a male and female embossing die roller for manufacturing an interlocking structure of an embossed metal pipe.
More particularly, the invention relates to a male and female embossing die roller with an interlocking structure, aiming at solving the following problems: when the pipe mill for manufacturing the metal pipe is used for manufacturing the embossed pipe, the embossing patterns of the concave-convex shapes formed on the embossed metal plate are deformed in the process of the curved male-female meshing horizontal roller and the circular meshing horizontal and vertical rollers of the pipe mill, so that the welding can not be carried out due to the inconsistent embossing patterns of the concave-convex shapes,
a plane with a width smaller than that of the embossed pattern layer is formed in the length direction of the two side edges of the embossed metal plate, so that the welding of the connecting part in the length direction of the embossed metal pipe can be realized, and a groove is formed in the welding connecting part, so that the embossed metal plate without welding scars can be manufactured.
Background
A pipe mill is an apparatus for manufacturing a circular metal pipe by rounding a metal plate through a process of gradually increasing a degree of curvature of the continuously supplied metal plate such as a stainless steel plate, an iron plate, a copper plate, a brass plate, etc., and performing a welding process in such a manner that both side width ends of the rounded metal plate are uniform.
However, as shown in the present invention, the technique of manufacturing the embossed pipe by the pipe mill using the embossed metal plate manufactured by the embossing die rolls engaging the female and male dies is not a prior art.
Disclosed is a manufacturing technique of an embossed pipe having a connecting portion in a length direction as a prior art in the field of manufacturing of embossed pipes, which is a metal pipe obtained by melt extrusion of metal, or a pipe mill is used to make a metal plate of a smooth surface pass between a horizontally arranged male and female meshing curved rollers and to improve the degree of curvature, and is formed into a pipe shape in the process of a plurality of horizontally and vertically arranged and symmetrically meshed circular rollers, so that the cross sections of the widths of both sides of the pipe thus formed are welded in a uniform manner.
As an example of the prior art, there is,
in korean patent No. 10-1611572 (granted date: 2016.04.05), "a metal pipe pattern forming machine" discloses an embossing treatment technique in which, if a piston is moved to the rear, an inner mold provided in a housing is pushed by the piston and moved toward the inner circumferential surface side of a metal pipe, so that a positive-engraved pattern formed on the outer circumferential surface of the inner mold is engaged with a negative-engraved pattern formed on the inner circumferential surface of an outer mold, and a letter pattern is formed on the surface of the metal pipe between the inner mold and the outer mold.
Korean patent No. 10-404895 (granted date: 2003.10.28) discloses a method of embossing a metal pipe, in which a movable holder fixedly installed at the center of a frame and a left-right movable holder fixedly installed at the frame are moved toward the inner sides of a plurality of circular sleeves by first moving force generating members connected to the rear sides of the holders, so as to be aligned with each other, thereby forming a cylindrical sleeve having a plurality of circular sleeve through holes, the metal pipe is inserted into the cylindrical sleeve in a closely fitted manner and fixed, a plurality of through holes perforated in a circumferential surface formed in a tubular manner toward the inner side of the metal pipe are inserted into a tubular core having the through holes in a closely fitted manner and installed, so that the sleeve through holes formed in the inner surface of the cylindrical sleeve and the core through holes formed in the outer surface of the core are uniformly installed and fixed, the same and the front end portion of the core forms into the conical shape, so that the body forms the flange of the rod-shaped body, the cylinder which generates the component through the second moving force is pushed into with strong pressure, and through the conical inclined plane of the front end portion of the flange, the lower end bending portion of the small diameter portion of the drilled hole which protrudes to the inner side of the small diameter through hole is pushed upwards vertically, so that the drilled hole of the arched large diameter portion which is integrated with the small diameter portion is pushed upwards towards the direction of the through hole of the sleeve which is formed on the inner surface of the sleeve, thereby the surface of the pipe is bent and protruded, and a plurality of protrusions are formed on the pipe.
The disclosed prior art is embossing for forming a pipe between an outer female die and an inner male die by extruding a manufactured metal pipe, both of which are similar techniques, but has problems in that the embossing is not precise and delicate, and is not a continuous process, and thus, the production efficiency and competitiveness are not sufficient.
As another prior art, korean patent No. 10-1399231 (granted date: 2014.05.19) "structurally improved pipe embossing apparatus" discloses an apparatus for forming a circular groove in a metal pipe, in which an embossing protrusion is struck by air pressure at positions at regular intervals in a direction perpendicular to the center line of the metal pipe, in a plurality of cylinders of the apparatus formed by a cylinder operated by air pressure, a cylinder part formed by a piston operated by the cylinder, and the embossing protrusion formed by tie-bits formed in the cylinder.
However, the embossing formed by the apparatus has a disadvantage of very simple intaglio embossing, and cannot obtain fine and delicate embossing.
In addition, as described above, as a related art of an apparatus for performing an embossing process on the outer circumferential surface of a tube, korean patent laid-open publication No. 10-1017890 (granted date: 2011.02.21) discloses a related art of "a diamond-shaped forming die for the outer circumferential edge of a tube and a forming method using the same", and korean patent laid-open publication No. 10-1604011 (granted date: 2016.03.10) discloses a related art of "a diamond-shaped forming apparatus for a tube".
However, as described above, the pipe having the outer peripheral surface of the metal pipe having the smooth surface subjected to the embossing treatment has a drawback of being extremely inefficient because not only the embossing pattern is always simple, but also a fine and delicate embossing pattern cannot be formed, and the metal pipes cut at a certain length are installed one by one.
The invention solves the problems of the manufacturing device of the embossed metal pipe, and the embossed pipe manufactured by the pipe rolling machine has high efficiency and exquisite and fine embossed patterns.
In the present invention, when an embossed metal plate is manufactured into an embossed tube by a pipe mill, it takes a long time until completion, and there is a problem that an accident occurs. These problems are solved one by one thereafter, thereby finally completing the formed embossed metal pipe.
One of the problems is that when a metal flat plate passes through a pipe mill, high pressure male and female meshing curved roller pressure is applied to the metal plate in the process of passing between male and female meshing curved rollers arranged horizontally and vertically, so that plastic deformation occurs and the metal plate is curved.
In contrast, the metal plate subjected to the embossing treatment has an apparent volume corresponding to a multiple of the thickness of the metal plate before the embossing treatment by the uneven embossing pattern.
As a specific example, if a metal plate of 0.5mm or 1mm is used before the embossing treatment, the height from the embossed pattern projection to the bottom surface is 1mm or 2mm and a space is formed, and when the embossed metal plate is used to manufacture an embossed metal pipe, the round shape of the embossed pattern is difficult to maintain and the embossed metal plate is completely crushed during the process of passing through the engaged male and female rollers of the pipe mill, and in order to solve this problem, the gap adjustment between the engaged round male and female rollers must be accurately performed according to the degree of the embossing treatment.
Further, the nip of the meshing-rounding female and male rollers is narrow, and if the pressure becomes high, the deformation of the embossed pattern becomes serious, and at the same time, the width of the embossed metal plate becomes wide, and the rounding-nip symmetrical rollers may overlap with the width of the embossed metal plate, and if the gap adjustment becomes wide, the curving cannot be smoothly achieved.
Another problem is the connection formed in the length direction of the embossed metal pipe. In other words, there is a problem in that, when an embossed metal pipe is manufactured from an embossed metal plate using a pipe mill, welding of a connection portion formed in a length direction of the emboss cannot be actually achieved.
The invention provides a method for solving the problems, and relates to an embossing die roller for engaging male and female dies of an embossed metal pipe.
If the above is combed.
When manufacturing an embossed pipe using a pipe mill, if an embossed metal plate or an embossed metal strip is passed through the pipe mill, in the process of passing horizontal male and female interlocking rolls made of a high-strength metal material to form a pipe into a circular horizontal and vertical interlocking symmetrical roll in order to achieve curving, the embossing pattern on the thinner embossed metal plate is deformed by embossing processing, and the height of the embossing pattern also varies, and the engagement of the rolls in the length direction causes a difference in applied pressure and a difference in rotational shear force, whereby the embossing pattern in the length direction varies in length, and a welded part is loosened and staggered in the height and length directions of the mutually corresponding embossing patterns, so that welding cannot be performed, and the embossed metal plate or the embossed metal strip is processed by interlocking embossing rolls of male and female engravings having very accurate dimensional stability.
Even if welding is performed, countless gaps and fine holes are formed in the welded connection portion, so that water tightness and air tightness of the connection portion cannot be ensured, and if the welding time is extended to eliminate such a situation, the surface of the embossed pattern is contaminated by the welded product, thereby losing the value of the commercial product.
A method capable of solving the above problems is a method to be proposed by the present invention, that is, an apparatus for manufacturing an embossed pipe in which both side surfaces of an embossed metal plate are easily welded, and a method for manufacturing an embossed pipe using the same.
Disclosure of Invention
Technical problem to be solved
The invention relates to a male and female embossing die roller with mutual meshing structure, which is used for embossing a flat metal plate by a pipe mill before being placed in the pipe mill,
an object of the present invention is to provide a male and female embossing die roll for manufacturing an intermeshing structure of an embossed metal pipe, which can impart more finely cut embossing patterns than an embossed pipe manufactured by a conventionally disclosed apparatus for manufacturing an embossed pipe, can weld a connection part formed in a longitudinal direction when manufacturing an embossed pipe by a pipe rolling mill, can perform a continuous process without exposing a crater of the connection part to the outside, and can maximize both pipe rolling mill characteristics and productivity.
Means for solving the problems
In order to achieve the object as described above,
the invention provides a male and female embossing die roller of an interlocking mechanism used in the manufacture of an embossed metal pipe, which is used as the male and female embossing die roller of the interlocking mechanism used in the manufacture of the embossed metal pipe of the first embodiment,
the male and female embossing mold rolls are formed such that an upper roll formed with male embossed patterns and a lower roll formed with female embossed patterns are engaged with each other to rotate,
the upper roller includes: a roller; shafts formed at both ends of the roller;
a positive embossing pattern part formed on the surface of the roller;
a first left side end portion and a first right side end portion formed lower than the male embossed pattern portion at both side ends of the roller,
the lower roller includes: a roller; shafts formed at both ends of the roller;
an intaglio embossing pattern part formed on the surface of the roller;
a second left side end portion and a second right side end portion formed higher than the intaglio embossing pattern portion at both side ends of the roller.
Further, there is provided a male and female embossing die roll of an interlocking mechanism used for manufacturing an embossed metal pipe, as a male and female embossing die roll of an interlocking mechanism used for manufacturing an embossed metal pipe of the second embodiment,
the male and female embossing mold rolls are formed such that an upper roll formed with male embossed patterns and a lower roll formed with female embossed patterns are engaged with each other to rotate,
the upper roller includes: a roller; shafts formed at both ends of the roller;
a positive embossing pattern part formed on the surface of the roller;
a belt-shaped groove portion formed along a roller rotation direction so as to be lower than the positive embossing pattern portion, and dividing the positive embossing pattern portion at regular intervals;
first left and right side end portions formed lower than the male embossed pattern portion at both side ends of the roller;
left and right slope forming parts which are integrally formed by laterally expanding from the first left and right end parts and are formed to protrude in an outer oblique direction from positions extending from the first left and right end parts so as to be engaged with the second left and right end parts of the lower roller for rotation, whereby both side ends of the metal plate are formed into slopes,
the lower roller includes: a roller; shafts formed at both ends of the roller;
an intaglio embossing pattern part formed on the surface of the roller;
a second left side end portion and a second right side end portion formed higher than the intaglio embossing pattern portion at both side ends of the roller.
ADVANTAGEOUS EFFECTS OF INVENTION
The male and female embossing die roll for manufacturing the intermeshing structure of an embossed metal pipe according to the present invention has the following effects.
First, a more delicate and fine embossing pattern can be provided than an embossing pattern formed by a conventional mechanical device for embossing a smooth-faced pipe.
Second, when manufacturing an embossed pipe using a pipe mill, when manufacturing an embossed metal pipe using an embossed metal plate formed by male and female engraved interlocking embossing rollers, welding can be achieved, and a welding connection portion can form a connection portion groove having a small width, so that the welding portion is not exposed to the outside, and together with the connection portion groove having a small width, more than one circumferential surface groove identical to the connection portion groove having a small width is designed, thereby improving delicate embossed patterns and also improving a decorative effect.
Drawings
Fig. 1 is an overall perspective view of an embossed metal pipe manufacturing apparatus including male and female embossing die rollers according to the present invention.
Fig. 2 is a perspective view of male and female embossing die rollers according to a first embodiment of the present invention.
Fig. 3 is a front view of a male and female embossing die roll according to a first embodiment of the present invention.
Fig. 4 is a front view of a male and female embossing die roll according to a second embodiment of the present invention.
Fig. 5 is a front view of a male and female embossing die roll according to a third embodiment of the present invention.
Fig. 6 is a front view of a male and female embossing die roll according to a fourth embodiment of the present invention.
Fig. 7 is a front view of a male and female embossing die roll according to a fifth embodiment of the present invention.
Fig. 8 is a front view of a male and female embossing die roll according to a sixth embodiment of the present invention.
Fig. 9 is a front view showing a state in which an embossed metal plate is manufactured using male and female embossing die rolls according to the first embodiment of the present invention.
Fig. 10 is a front view showing a state in which an embossed metal plate is manufactured using male and female embossing die rolls according to a third embodiment of the present invention.
Fig. 11 is a sectional view showing the embossed metal plate side manufactured by the male and female embossing die rolls according to the first and third embodiments of the present invention.
Fig. 12 is a front view showing a state in which an embossed metal plate is manufactured using male and female embossing die rolls according to a fifth embodiment of the present invention.
Fig. 13 is a front view showing a state in which an embossed metal plate is manufactured using male and female embossing die rolls according to a sixth embodiment of the present invention.
Fig. 14 is a sectional view showing the embossed metal plate side manufactured by the male and female embossing die rolls according to the fifth and sixth embodiments of the present invention.
Fig. 15 is a view schematically showing one embodiment of a welded front side section of an embossed metal pipe manufactured using an embossed metal plate manufactured by male and female embossing die rolls according to the present invention.
Fig. 16 is a view schematically showing one embodiment of a welded rear side section of an embossed metal pipe manufactured using an embossed metal plate manufactured by male and female embossing die rolls according to the present invention.
FIG. 17 is a side cross-sectional view of various forms of the weld connection formed by the embossed metal tube of FIG. 15.
Detailed Description
A male and female embossing die roller for manufacturing a mutual engagement structure of an embossed metal pipe is used as a male and female embossing die roller 1 for manufacturing a mutual engagement structure of an embossed metal pipe,
the male and female embossing mold roll 1 is formed such that an upper roll 10 on which male embossed patterns are formed and a lower roll 20 on which female embossed patterns are formed are rotated in mesh with each other,
the upper roller 10 includes: a roller body 101; shafts 102 formed at both ends of the roller body 101;
a positive embossing pattern part 103 formed on the surface of the roller body 101;
a first left side end 105 and a first right side end 106 formed lower than the male embossed pattern part 103 at both side ends of the roller body 101,
the lower roller 20 includes: a roller body 201; shafts 202 formed at both ends of the roller body 201;
an intaglio embossing pattern part 203 formed on the surface of the roller body 201;
a second left end 205 and a second right end 206 formed higher than the intaglio embossing pattern part 203 at both side ends of the roller body 201.
Embodiments for the invention
Fig. 1 is an overall perspective view of an embossed metal pipe manufacturing apparatus including male and female embossing die rollers according to the present invention.
Briefly observing the embossed metal pipe manufacturing process by the embossed metal pipe manufacturing apparatus shown in fig. 1, first, a metal plate supplied by an uncoiler is supplied to a male and female embossing die roll 1 via a guide roll. In this case, although various types of metal plates can be used, a stainless steel metal plate is used as an example.
The metal plate supplied to the embossing mold roll 1 for male and female embossing is passed between the upper roll 10 having the male embossing pattern formed thereon and the lower roll 20 having the female embossing pattern formed thereon, while being rotated in a meshed manner, and the surface of the metal plate is embossed.
The embossed metal plate that has passed through the male and female embossing die rolls 1 is subjected to various processes (steps 1 to 7) of a pipe mill for manufacturing a metal pipe, thereby manufacturing an embossed metal pipe in which a connection portion in the longitudinal direction is formed. And finally, welding the connecting part to complete the integral embossed metal pipe.
The present invention relates to a male and female embossing die roll 1 shown in fig. 1.
In more detail, the present invention is described in more detail,
the present invention relates to the manufacture of corrugated pipe using existing pipe mills that manufacture smooth-faced metal pipe,
the embossing die roller 1 includes a plurality of embossing patterns formed on a circumference of the roller, and a plurality of grooves having a small width and identical to the grooves of the connecting portion having a small width are formed along the circumference of the roller at regular intervals, thereby realizing a design of dividing the embossing patterns, thereby providing a device effect while providing the delicate and beautiful embossing patterns, and maximizing a production efficiency while having a characteristic of a pipe rolling machine capable of performing a continuous process.
The detailed technical structure of the male and female embossing mold roll 1 having the intermeshing structure according to the present invention as described above is observed in detail with reference to the accompanying drawings.
The male and female embossing mold roll 1 according to the intermeshing structure of the present invention may have various embodiments according to the difference of the embodiments.
In the present invention, the male and female embossing mold rollers 1 having the mutually engaging structure are observed through four embodiments of the male and female embossing mold rollers 1 having the same embossing pattern and two embodiments of the male and female embossing mold rollers 1 having the embossing pattern different from the four embodiments.
[ example 1 ]
As shown in fig. 2 and 3, the male and female embossing mold roll 1 of the intermeshing structure according to example 1 of the present invention,
formed such that an upper roller 10 formed with a male engraved embossing pattern and a lower roller 20 formed with a female engraved embossing pattern are rotated in mesh with each other,
the upper roller 10 includes: a roller body 101; shafts 102 formed at both ends of the roller body 101;
a positive embossing pattern part 103 formed on the surface of the roller body 101;
a first left side end 105 and a first right side end 106 formed lower than the male embossed pattern part 103 at both side ends of the roller body 101,
the lower roller 20 includes: a roller body 201; shafts 202 formed at both ends of the roller body 201;
an intaglio embossing pattern part 203 formed on the surface of the roller body 201;
a second left end 205 and a second right end 206 formed higher than the intaglio embossing pattern part 203 at both side ends of the roller body 201.
In example 1, the groove portions 104 and the protrusion portions 204 in a band shape that divide the male embossing pattern portion 103 and the female embossing pattern portion 203 are not formed.
The male and female embossing die roll 1 of the intermeshing structure according to example 2 includes the belt-shaped groove portions 104 and the belt-shaped convex portions 204.
[ example 2 ]
As shown in fig. 4, the male and female embossing mold roll 1 of the intermeshing structure according to example 2 of the present invention,
formed such that an upper roller 10 formed with a male engraved embossing pattern and a lower roller 20 formed with a female engraved embossing pattern are rotated in mesh with each other,
the upper roller 10 includes: a roller body 101; shafts 102 formed at both ends of the roller body 101;
a positive embossing pattern part 103 formed on the surface of the roller body 101;
a strip-shaped groove portion 104 formed along the rotation direction of the roller so as to be lower than the positive embossing pattern portion 103 formed on the surface of the roller body 101, and dividing the positive embossing pattern portion 103 at regular intervals;
a first left side end 105 and a first right side end 106 formed lower than the male embossed pattern part 103 at both side ends of the roller body 101,
the lower roller 20 includes: a roller body 201; shafts 202 formed at both ends of the roller body 201;
an intaglio embossing pattern part 203 formed on the surface of the roller body 201;
belt-shaped protrusions 204 formed in the rotation direction of the roller higher than the intaglio embossing pattern part 203 formed on the surface of the roller body 201 so as to divide the intaglio embossing pattern part 203 at regular intervals;
a second left end 205 and a second right end 206 formed higher than the intaglio embossing pattern part 203 at both side ends of the roller body 201.
At this time, the convex portion 204 of the upper roller 10 is configured to be inserted into the groove portion 104 of the lower roller 20.
The difference between the male and female embossing mold rolls 1 of the intermeshing structure proposed in examples 1 and 2 and the male and female embossing mold rolls 1 of the intermeshing structure of example 3 is the structure of both side ends of the roll body 101 of the upper roll 10.
The upper roller 10 of the negative and positive embossing die roller 1 of example 3 is different in that a left inclined surface forming portion 107 and a right inclined surface forming portion 108 are formed at both side ends of the roller body 101.
[ example 3 ]
As shown in fig. 5, the male and female embossing mold roll 1 of the intermeshing structure according to example 3 of the present invention,
formed such that an upper roller 10 formed with a male engraved embossing pattern and a lower roller 20 formed with a female engraved embossing pattern are rotated in mesh with each other,
the upper roller 10 includes: a roller body 101; shafts 102 formed at both ends of the roller body 101;
a positive embossing pattern part 103 formed on the surface of the roller body 101;
a first left side end 105 and a first right side end 106 formed lower than the male embossed pattern part 103 at both side ends of the roller body 101,
left and right slope forming parts 107 and 108 which are integrally formed by being laterally expanded from the first left and right end parts 105 and 106 and are formed to protrude in an outer oblique line direction from positions extending from the first left and right end parts 105 and 106 so as to be engaged with the second left and right end parts 205 and 206 of the lower roller 20 to rotate, whereby both side ends of the metal plate are formed as slopes,
the lower roller 20 includes: a roller body 201; shafts 202 formed at both ends of the roller body 201;
an intaglio embossing pattern part 203 formed on the surface of the roller body 201;
a second left end 205 and a second right end 206 formed higher than the intaglio embossing pattern part 203 at both side ends of the roller body 201.
In example 3, the groove portions 104 and the protrusion portions 204 in a band shape that divide the male embossing pattern portion 103 and the female embossing pattern portion 203 were not formed in a band shape.
The male and female embossing die roll 1 of the intermeshing structure according to example 4 includes the belt-shaped groove portions 104 and the belt-shaped convex portions 204.
[ example 4 ]
As shown in fig. 6, the male and female embossing mold roll 1 of the intermeshing structure according to example 4 of the present invention,
formed such that an upper roller 10 formed with a male engraved embossing pattern and a lower roller 20 formed with a female engraved embossing pattern are rotated in mesh with each other,
the upper roller 10 includes: a roller body 101; shafts 102 formed at both ends of the roller body 101;
a positive embossing pattern part 103 formed on the surface of the roller body 101;
a strip-shaped groove portion 104 formed along the rotation direction of the roller so as to be lower than the positive embossing pattern portion 103 formed on the surface of the roller body 101, and dividing the positive embossing pattern portion 103 at regular intervals;
a first left side end 105 and a first right side end 106 formed lower than the male embossed pattern part 103 at both side ends of the roller body 101,
left and right slope forming parts 107 and 108 which are integrally formed by being laterally expanded from the first left and right end parts 105 and 106 and are formed to protrude in an outer oblique line direction from positions extending from the first left and right end parts 105 and 106 so as to be engaged with the second left and right end parts 205 and 206 of the lower roller 20 to rotate, whereby both side ends of the metal plate are formed as slopes,
the lower roller 20 includes: a roller body 201; shafts 202 formed at both ends of the roller body 201;
an intaglio embossing pattern part 203 formed on the surface of the roller body 201;
belt-shaped protrusions 204 formed in the rotational direction of the roller higher than the intaglio embossing pattern part 203 formed on the surface of the roller body (201) so as to divide the intaglio embossing pattern part 203 at regular intervals;
a second left end 205 and a second right end 206 formed higher than the intaglio embossing pattern part 203 at both side ends of the roller body 201.
The male and female embossing mold rolls 1 of the intermeshing structure according to the embodiments 5 and 6 and the male and female embossing mold rolls 1 proposed in the embodiments 1 to 4 are configured with different embossing molds.
As shown in fig. 7, the male and female embossing die roller 1 according to example 5 has only a difference in embossing pattern, and actually has the same structure as the male and female embossing die roller 1 of example 2 shown in fig. 4.
As shown in fig. 8, the male and female embossing die roller 1 according to example 6 has only a difference in embossing pattern, and actually has the same structure as the male and female embossing die roller 1 of example 4 shown in fig. 6.
Hereinafter, the respective configurations of the male and female embossing mold rolls 1 constituting the intermeshing structure disclosed in examples 1 to 6 are observed in more detail.
The male and female embossing die rolls 1 disclosed in embodiments 1 to 7 are configured such that the upper roll 10 and the lower roll 20 of the high-strength metal material rotate in mesh with each other.
Patterns for realizing the male-engraved embossing pattern part 103 and the female-engraved embossing pattern part 203 are formed on the surfaces of the upper roller 10 and the lower roller 20, and the male-engraved embossing pattern part 103 and the female-engraved embossing pattern part 203 are formed to be engaged with each other.
At the moment, the pattern directly influences the aesthetic feeling of the embossing metal plate, and the embossing metal plate is formed by fusing the grains and the stereoscopic impression of the male and female scales. In this case, the pattern can be set according to preference.
In a specific example thereof,
both ends of the patterns of the embossed pattern portions 103 and 203 shown in fig. 2 to 6 form an arch-shaped long rectangular pattern.
The embossing pattern 103, 203 shown in fig. 7 to 8 is patterned to have a pattern of quadrangular pyramid-shaped protrusions.
The difference between the male and female embossing die rolls 1 of examples 1 and 3 shown in fig. 2, 3, and 5 and the male and female embossing die rolls 1 of examples 2, 4, 5, and 6 shown in fig. 4, 6, 7, and 8 is whether or not there are the small-width strip-shaped groove portions 104 and the small-width strip-shaped protrusion portions 204 formed by the upper roll 10 and the lower roll 20.
The belt-shaped groove portion 104 and the belt-shaped protrusion portion 204 are configured such that the upper roller 10 and the lower roller 20 interpose the flat metal plate therebetween and rotate in mesh with each other when rotating. In this case, the snap rotation means insertion rotation while pushing and inserting the metal plate into the groove 104 by the band-shaped protrusion 204.
The narrow band-shaped groove portions 104 and the narrow band-shaped protrusion portions 204 are formed such that the pattern having the embossed pattern is divided along the circumferential surface at regular intervals, because the narrow groove portions 104 thus divided can exhibit a decorative effect together with the embossed pattern.
An important configuration of the male and female embossing die roll 1 of the intermeshing structure according to the present invention is, as shown in fig. 2 to 10, a first left end 105 and a first right end 106 and a second left end 205 and a second right end 206 formed at both side ends of the upper roll 10 and the lower roll 20.
The importance of the first left-side end 105 and the first right-side end 106 and the second left-side end 205 and the second right-side end 206 is that the welding problem occurring when manufacturing embossed pipes using embossed metal sheets is solved.
In other words, the first left end 105 and the first right end 106 and the second left end 205 and the second right end 206 formed at both side ends of the embossing die roller 1 form a plane having a small width on both side surfaces of the metal plate subjected to the embossing process, so that the following problems can be solved: when an embossed pipe is manufactured by using an existing pipe rolling mill, the embossed patterns of the concavo-convex shape formed by the embossed metal plate deform, and the pipe rolling mill is used for manufacturing a metal pipe with a smooth surface; or welding cannot be achieved due to non-uniform embossing patterns formed on the connecting portion in the longitudinal direction.
In addition, the important technical structure is the inclined surface structure of both side ends of the metal plate put into the male and female embossing mold rolls 1.
The inclined surface is processed while the flat metal plate is put into the male and female embossing die roller 1 and is embossed.
As shown in fig. 9 and 12, even if both side surfaces of the flat metal plate are not formed with slopes, and the first left end 105, the first right end 106, the second left end 205, and the second right end 206 form a flat surface having a small width on both side surfaces of the embossed metal plate, and the embossed metal plate thus formed is used to form a pipe mill by curving and rounding the both side surfaces of the embossed metal plate so that the V-shaped groove is naturally formed at the position where the both side surfaces are in contact with each other due to the difference between the inner diameter and the outer diameter.
As shown in fig. 10 and 13, in order to form inclined surfaces at both ends, an unprocessed metal plate is put into a male and female embossing die roll 1, thereby manufacturing an embossed metal plate having inclined surfaces at both ends.
The embossed metal plate having both ends beveled, which is manufactured through the process, is shown in fig. 11 and 14.
At this time, as shown in fig. 10 and 13, both ends of the metal plate can be processed while the metal plate is embossed by the male and female embossing die rolls 1, which is related to the structures of the left inclined surface forming portion 107 and the right inclined surface forming portion 108 formed on both side surfaces of the upper roll 10.
The left side inclined surface forming portion 107 and the right side inclined surface forming portion 108 form an angle θ 1 of 110 degrees to 135 degrees with the left side end portion 105 and the right side end portion 106, so that both end inclined surfaces of the metal plate formed by the left side inclined surface forming portion 107 and the right side inclined surface forming portion 108 are in contact with each other to form a welded connection portion 109 having a V-shaped groove 109a, and an inner angle θ 2 of the V-shaped groove 109a is 20 degrees to 90 degrees.
As described above, in manufacturing the embossed metal plate, since the inclined surfaces are formed at both ends of the metal plate, the metal plate passes through the curving and rounding rollers of the pipe mill, the round pipe is molded, the inclined surfaces of the flat surfaces having a small width are brought into contact with the inclined surfaces, the V-shaped grooves 109a having a small width are formed, the V-shaped grooves 109a formed as described above are welded by melting and fusing the materials thereof, the welded connection parts 109 identical to the groove parts 104 are formed, and thus the welded connection parts 109 and the groove parts 104 form a pattern, which contributes to the improvement of the beauty together with the pattern.
The groove portion 104 and the weld connection portion 109 are formed to have a small width, and more specifically, a width of 1.6mm or less.
And in order to keep the groove portion 104 consistent with the width of the welded connection 109, the width L1 of the first left and right end portions 105 and 106 formed at both ends of the upper roller 10 according to the present invention is maintained to be 1/2 length of the width L2 of the groove portion 104.
In other words, the entire width length of the first left end 105 and the first right end 106 is equal to the entire width length of the groove 104.
Fig. 15 is a side sectional view schematically showing one example of a side section of an embossed metal pipe manufactured using an embossed metal plate manufactured by male and female embossing die rolls according to the present invention, and fig. 16 is a side sectional view showing various forms of a welded connection formed by the embossed metal pipe of fig. 15.
As shown in fig. 15, the embossed metal pipe manufactured by putting the embossed metal plate manufactured by the male and female embossing die roll 1 of the present invention into a pipe mill is formed with a welded joint 109 along the longitudinal direction, and the welded joint 109 is formed with a V-shaped groove 109a having a small width, so that the V-shaped groove 109a is welded to melt-weld the material of the pipe itself, thereby forming a joint groove on the circumferential surface of the roll, which is the same as one or more divided grooves formed at regular intervals.
Accordingly, the weld connection part 109 formed in the longitudinal direction of the embossed metal pipe is integrally connected by sharp and delicate welding, and the same connection part groove is formed together with the other partition groove dividing the embossed pattern, thereby providing an advantage in that the aesthetic design is exhibited and a decorative effect can be added.
Fig. 16 is a view showing a state after welding the V-shaped groove 109a of the embossed metal pipe shown in fig. 15.
Fig. 17 shows that the weld connection portion 109 of the embodiment shown in fig. 15 can be deformed into various forms. It is needless to say that the form of the weld connection portion 109 including the V-shaped groove can be variously proposed in addition to the form shown in fig. 17.
The welded connection portion 109 is characterized by being formed such that both ends of the metal plate are formed with slopes by a left slope forming portion 107 and a right slope forming portion 108, and the center portion of the side section has a "V" shaped structure, and the shape around the V shaped structure may be varied in the same manner as the V shaped structure.
Industrial applicability
The male and female embossing die rolls according to the present invention can provide a more delicate and fine embossing pattern than an embossing pattern formed by a conventional mechanical device for embossing a smooth-faced pipe, and when manufacturing an embossed pipe using a pipe mill, when manufacturing an embossed metal pipe using an embossed metal plate formed by male and female embossing rollers, welding can be performed, and a welding connection part can form a connection part groove having a small width, so that the welding part is not exposed to the outside, and at least one circumferential groove identical to the connection part groove having a small width is designed together with the connection part groove having a small width, thereby improving the delicate embossing pattern, and simultaneously improving a decorative effect, and having a high industrial applicability.
Claims (9)
1. A male and female embossing die roller for manufacturing a mutual meshing structure of an embossing metal pipe is characterized in that the male and female embossing die roller for manufacturing the mutual meshing structure of the embossing metal pipe,
the male and female embossing die roll (1) is formed such that an upper roll (10) formed with male embossed patterns and a lower roll (20) formed with female embossed patterns are engaged with each other to rotate,
the upper roller (10) is formed to include: a roller body (101); shafts (102) formed at both ends of the roller body (101); a positive embossing pattern part (103) formed on the surface of the roller body (101); a first left end (105) and a first right end (106) formed lower than the male embossed pattern portion (103) at both side ends of the roller body (101); and a left side inclined surface forming part (107) and a right side inclined surface forming part (108) which are laterally expanded from the first left side end part (105) and the first right side end part (106) to form a whole, and are formed to protrude in an outer oblique line direction from positions extending from the first left side end part (105) and the first right side end part (106) so as to be engaged with the second left side end part (205) and the second right side end part (206) of the lower roller (20) to rotate, whereby both ends of the metal plate are molded in the oblique line direction,
the lower roller (20) is formed to include: a roller body (201); shafts (202) formed at both ends of the roller body (201); an intaglio embossing pattern part (203) formed on the surface of the roller body (201); and the second left side end portion (205) and the second right side end portion (206) formed higher than the intaglio embossing pattern portion (203) at both side ends of the roller body (201),
the included angle (theta 1) formed by the left side inclined plane forming part (107) and the right side inclined plane forming part (108) and the left side end part (105) and the right side end part (106) is 110 degrees to 135 degrees, so that the welding connecting part (109) with the V-shaped groove (109a) is formed by connecting two tail end inclined planes of the metal plate formed by the left side inclined plane forming part (107) and the right side inclined plane forming part (108), and the inner angle (theta 2) of the V-shaped groove (109a) is 20 degrees to 90 degrees.
2. The male and female embossing die roll for manufacturing an intermeshing structure of embossed metal tubes as claimed in claim 1,
the welding connection part (109) is formed to incline both ends of the metal plate by the left side inclined plane forming part (107) and the right side inclined plane forming part (108) so that the center part of the side section forms a 'V' shaped structure.
3. A male and female embossing die roller for manufacturing a mutual engagement structure of an embossed metal pipe, characterized in that as a male and female embossing die roller for manufacturing a mutual engagement structure of an embossed metal pipe,
the male and female embossing die roll (1) is formed such that an upper roll (10) formed with male embossed patterns and a lower roll (20) formed with female embossed patterns are engaged with each other to rotate,
the upper roller (10) is formed to include: a roller body (101); shafts (102) formed at both ends of the roller body (101); a positive embossing pattern part (103) formed on the surface of the roller body (101); a first left end (105) and a first right end (106) formed lower than the male embossed pattern portion (103) at both side ends of the roller body (101); and a left side inclined surface forming part (107) and a right side inclined surface forming part (108) which are laterally expanded from the first left side end part (105) and the first right side end part (106) to form a whole, and are formed to protrude in an outer oblique line direction from positions extending from the first left side end part (105) and the first right side end part (106) so as to be engaged with the second left side end part (205) and the second right side end part (206) of the lower roller (20) to rotate, whereby both ends of the metal plate are molded in the oblique line direction,
the lower roller (20) is formed to include: a roller body (201); shafts (202) formed at both ends of the roller body (201); an intaglio embossing pattern part (203) formed on the surface of the roller body (201); and the second left side end portion (205) and the second right side end portion (206) formed higher than the intaglio embossing pattern portion (203) at both side ends of the roller body (201),
the left side inclined plane forming part (107) and the right side inclined plane forming part (108) form an included angle (theta 1) of 110 degrees to 135 degrees with the left side end part (105) and the right side end part (106), so that a welding connection part (109) having a V-shaped groove (109a) is formed by the contact of the two end inclined planes of the metal plate formed by the left side inclined plane forming part (107) and the right side inclined plane forming part (108), the included angle (theta 2) of the V-shaped groove (109a) is 20 degrees to 90 degrees,
the welding connection part (109) is formed to incline both ends of the metal plate by the left side inclined plane forming part (107) and the right side inclined plane forming part (108) so that the center part of the side section forms a 'V' shaped structure.
4. The male and female embossing die roll for manufacturing an intermeshing structure of embossed metal tubes as claimed in claim 1,
the upper roller 10 is formed with a belt-shaped groove part 104, the groove part 104 is formed along the rotation direction of the roller in a manner of being lower than the positive embossing pattern part 103 formed on the surface of the roller body 101 so as to divide the positive embossing pattern part 103 at regular intervals,
the lower roller (20) is formed with strip-shaped convex portions (204), and the convex portions (204) are formed in the direction of rotation of the roller so as to be higher than the intaglio embossing pattern portions (203) formed on the surface of the roller body (201), so that the intaglio embossing pattern portions (203) are divided at regular intervals, and the convex portions (204) are configured to be inserted into the groove portions (104).
5. The male and female embossing die roll for manufacturing an intermeshing structure of embossed metal tubes as claimed in claim 1,
the upper roller (10) is formed with a belt-shaped groove part (104), the groove part (104) is formed along the rotation direction of the roller in a manner of being lower than the positive embossing pattern part (103) formed on the surface of the roller body (101) so as to divide the positive embossing pattern part (103) at regular intervals,
the lower roller (20) is formed with strip-shaped protrusions (204), the protrusions (204) are formed in the rotational direction of the roller in such a manner as to be higher than the intaglio embossing pattern part (203) formed on the surface of the roller body (201) so as to divide the intaglio embossing pattern part (203) at regular intervals,
the width (L1) of the left side end (105) and the right side end (106) is 1/2 of the width (L2) of the groove (104).
6. The male and female embossing die roll for manufacturing an intermeshing structure of embossed metal tubes as claimed in claim 1,
the metal plate put into the male and female embossing die rollers (1) is pretreated so that both ends form inclined surfaces.
7. The male and female embossing die roll for manufacturing an intermeshing structure of embossed metal tubes as claimed in claim 3,
the upper roller (10) is formed with a belt-shaped groove part (104), the groove part (104) is formed along the rotation direction of the roller in a manner of being lower than the positive embossing pattern part (103) formed on the surface of the roller body (101) so as to divide the positive embossing pattern part (103) at regular intervals,
the lower roller (20) is formed with a strip-shaped convex portion (204), and the convex portion (204) is formed in the rotational direction of the roller so as to be higher than the intaglio embossing pattern portion (203) formed on the surface of the roller body (201), so that the intaglio embossing pattern portion (203) is divided at regular intervals, and the convex portion (204) is configured to be inserted into the groove portion (104).
8. The male and female embossing die roll for manufacturing an intermeshing structure of embossed metal tubes as claimed in claim 3,
the upper roller (10) is formed with a belt-shaped groove part (104), the groove part (104) is formed along the rotation direction of the roller in a manner of being lower than the positive embossing pattern part (103) formed on the surface of the roller body (101) so as to divide the positive embossing pattern part (103) at regular intervals,
the lower roller (20) is formed with strip-shaped protrusions (204), the protrusions (204) are formed in the rotational direction of the roller in such a manner as to be higher than the intaglio embossing pattern part (203) formed on the surface of the roller body (201) so as to divide the intaglio embossing pattern part (203) at regular intervals,
the width (L1) of the left side end (105) and the right side end (106) is 1/2 of the width (L2) of the groove (104).
9. The male and female embossing die roll for manufacturing an intermeshing structure of embossed metal tubes as claimed in claim 3,
the metal plate put into the male and female embossing die rolls (1) is pretreated so that both ends form slopes.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2018-0024246 | 2018-02-28 | ||
| KR1020180024246A KR101884364B1 (en) | 2018-02-28 | 2018-02-28 | Embossing roller having intaglio and relief with interlocking structure used in the manufacture of a embossing metal pipe |
| PCT/KR2018/016555 WO2019168260A1 (en) | 2018-02-28 | 2018-12-24 | Engraved and embossed embossing mold roller having interlocking structure used for manufacturing embossed metal pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111432953A true CN111432953A (en) | 2020-07-17 |
| CN111432953B CN111432953B (en) | 2021-10-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201880071451.0A Active CN111432953B (en) | 2018-02-28 | 2018-12-24 | Female and male embossing die roller for manufacturing mutually-meshed structure of embossed metal pipe |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP3760334B1 (en) |
| JP (1) | JP7036326B2 (en) |
| KR (1) | KR101884364B1 (en) |
| CN (1) | CN111432953B (en) |
| WO (1) | WO2019168260A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4164817A2 (en) * | 2020-06-15 | 2023-04-19 | Hydro Extruded Solutions AS | Apparatus and method for pre-forming a metal strip for the manufacture of roll formed and welded tubes |
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Also Published As
| Publication number | Publication date |
|---|---|
| EP3760334B1 (en) | 2023-12-27 |
| JP2021509361A (en) | 2021-03-25 |
| WO2019168260A1 (en) | 2019-09-06 |
| EP3760334A1 (en) | 2021-01-06 |
| JP7036326B2 (en) | 2022-03-15 |
| CN111432953B (en) | 2021-10-15 |
| KR101884364B1 (en) | 2018-08-01 |
| EP3760334A4 (en) | 2021-12-01 |
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