KR102464967B1 - Appratus for cutting edge of metal tape - Google Patents

Abstract

The disclosed content relates to an edge cutting device for a metal steel strip in which the edge of the metal strip is cut off immediately before roll forming on the outer surface of the inner tube so that welding defects due to the oxide film can be minimized.
The disclosed contents include a first cutting roll formed in a rotatable cylindrical shape, provided with first ring-shaped cutters on both sides of an outer circumferential surface, and having a seating surface formed between the first ring-shaped cutters, and a metal steel rod between the first cutting rolls. A second ring-shaped cutter arranged adjacent to the first cutting roll so as to be introduced and formed in a rotatable cylindrical shape and provided with a second ring-shaped cutter on an outer circumferential surface corresponding to the first ring-shaped cutter for continuously cutting both edges of the metal steel strip An edge cutting device for a metal steel strip including a cutting roll is presented as an embodiment.

Description

Edge cutting device for metal steel strip

The disclosed subject matter relates to an edge cutting device for cutting the edge of a metal steel strip used for manufacturing a composite pipe for fluid transport, such as, for example, a heating pipe, a water pipe, or a plant pipe.

Unless otherwise indicated herein, the contents described in this identification are not prior art to the claims of this application, and the description in this identification is not admitted to be prior art.

Conventionally, a metal pipe having excellent mechanical strength has been used for a pipe through which a fluid flows. However, in the case of a metal tube, there is a high risk of corrosion and scale, and the material is expensive and the construction cost is high. is being used

As an example of a method for manufacturing such a composite pipe, Korean Patent Laid-Open No. 10-1995-0028902 (published on Jan. 22, 1995) discloses a process of extruding an inner tube of a synthetic resin material, a process of applying an adhesive to the outer surface of the inner tube of the synthetic resin, and the synthetic resin A roll forming process for forming a metal tube on the outer surface of the ash inner tube, a process of applying an adhesive to the outer surface of the metal tube, and an outer appearance extrusion process for molding the outer surface of the synthetic resin material on the outer surface of the metal tube to which the adhesive is applied Disclosed is a method for manufacturing a composite pipe characterized in that.

In addition, as an example of an apparatus for manufacturing such a composite pipe, Korean Patent Laid-Open No. 10-2001-0000056 (published on January 5, 2001) discloses a reducer that receives the power of an electric motor to reduce it, and is coaxially connected to the reducer from the reducer. An angle changer provided by at least the number of lower rolls to change the angle of the power coming out by 90 degrees, a universal joint coupled to the angle changer respectively to transmit power, and a universal joint connected to the universal joint to rotate, Lower rolls that have a smaller radius of curvature and are made in the form of a pipe while loading and transporting an aluminum plate are connected to the shaft of the lower rolls through a transmission mechanism, and are in contact with the lower rolls with the same radius of curvature, respectively , upper rolls having a groove into which the inner tube can enter on the circumferential surface, located behind the lower rolls and the upper rolls, connected to the universal joint to rotate, and having a smaller radius of curvature toward the rear, an aluminum plate Characterized in that it consists of lower rolls for loading and transporting the coated composite pipe, upper guide rolls for guiding the composite pipe from the upper side of the composite pipe, and side guide rolls for guiding the composite pipe from the side A roll forming apparatus for a composite pipe is disclosed.

According to the manufacturing method of the composite tube described above, the inner tube having a predetermined diameter is extruded through the extruder is cooled and solidified through a cooling means, the adhesive is applied to the outer surface of the inner tube through an adhesive applying means. Then, on the outer surface of the inner tube, an aluminum plate is laminated while being formed into a pipe through roll forming, and then the seam is welded and cooled. Then, the adhesive is applied to the outer surface of the aluminum tube through the adhesive applying means, and the outer surface is laminated on the outer surface by the extrusion means.

However, in the case of a conventional composite pipe, a metal steel strip (aluminum plate) of a predetermined width on the outer surface of the inner tube is formed into a pipe through roll forming as it is, and then the seam is welded. There was a problem that caused a defect.

1. Korean Patent Publication No. 10-1995-0028902 (published on Dec. 22, 1995) 2. Korean Patent Publication No. 10-2001-0000056 (published on May 1, 2001)

An object of the present invention is to provide an edge cutting device for a metal steel strip in which the edge of the metal strip is cut off immediately before roll forming on the outer surface of the inner tube so that welding defects due to the oxide film can be minimized.

In addition, it is not limited to the technical problems as described above, and it is obvious that another technical problem may be derived from the following description.

The disclosed contents include a first cutting roll formed in a rotatable cylindrical shape, provided with first ring-shaped cutters on both sides of an outer circumferential surface, and having a seating surface formed between the first ring-shaped cutters, and a metal steel rod between the first cutting rolls. A second ring-shaped cutter arranged adjacent to the first cutting roll so as to be introduced and formed in a rotatable cylindrical shape and provided with a second ring-shaped cutter on an outer circumferential surface corresponding to the first ring-shaped cutter for continuously cutting both edges of the metal steel strip An edge cutting device for a metal steel strip including a cutting roll is presented as an embodiment.

In addition, according to a preferred feature of the disclosure, a heating heater positioned above the first cutting roll and the second cutting roll to heat-treat the metal steel strip positioned between the first cutting roll and the second cutting roll. include more

According to the edge cutting device of the metal steel strip according to an embodiment of the disclosure, immediately before roll forming the metal steel strip on the outer surface of the inner tube extruded from the inner tube extruder with a tube roll forming machine, the edge of the metal steel strip is easily formed. Accordingly, there is an advantage that a metal steel strip with both edges cut off is laminated on the outer surface of the inner tube through roll forming, and then the seam in contact with the edges is welded, so that welding defects due to the oxide film can be minimized.

In addition, according to the edge cutting device of the metal steel strip according to an embodiment of the disclosure, as the metal steel strip positioned between the first cutting roll and the second cutting roll is heat-treated by the heating heater, the first ring-type cutter and the second ring-type cutter There is an advantage that not only the cutting of the metal steel strip by the cutter but also the subsequent roll forming and welding of the seam by the pipe roll forming machine can be made quickly and easily.

The effects of the present invention are not limited to the above-mentioned effects, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

1 is a perspective view of an edge cutting device for a metal steel strip according to an embodiment of the disclosed subject matter.
Figure 2 is a structural diagram of an edge cutting device for a metal steel strip according to an embodiment of the disclosed subject matter.
Figure 3 is an operation view of the edge cutting device of the metal steel strip according to an embodiment of the disclosed subject matter.

Hereinafter, with reference to the accompanying drawings, the configuration and effect of the preferred embodiment will be described. For reference, in the following drawings, each component is omitted or schematically illustrated for convenience and clarity, and the size of each component does not reflect the actual size. In addition, the same reference numerals refer to the same components throughout the specification, and reference numerals for the same components in individual drawings will be omitted.

As shown in FIGS. 1 to 3, the edge cutting device of the metal steel strip according to an embodiment of the disclosure is formed in a rotatable cylindrical shape and is provided with a first ring-shaped cutter 11 on both sides of the outer circumferential surface, and a first ring-shaped Adjacent to the first cutting roll 10 so that the metal steel strip 3 flows between the first cutting roll 10 on which the seating surface 13 is formed between the cutters 11 and the first cutting roll 10 . A second cutting roll which is arranged so as to be rotatably formed in a cylindrical shape and is provided with a second ring-shaped cutter 21 corresponding to the first ring-shaped cutter 11 on the outer circumferential surface to continuously cut both edges of the metal steel strip 3 . (20).

Here, the first cutting roll 10 forms a kind of rolling scissors for simultaneously cutting both edges of the metal steel strip 3 together with the second cutting roll 20, which will be described later, and is rotated by, for example, a motor. It is formed in a drivable cylindrical shape.

A first ring-shaped cutter 11 is provided on both sides of the outer peripheral surface of the first cutting roll 10 . The first ring-shaped cutter 11 forms an outer cutting blade for simultaneously and continuously cutting both edges of the metal steel strip 3 together with the second ring-shaped cutter 21 of the second cutting roll 20 to be described later. , has a shape that gradually protrudes toward the center of the first cutting roll 10 .

The first ring-shaped cutter 11 may be formed integrally with the first cutting roll 10 on both sides of the outer circumferential surface of the first cutting roll 10, and in some embodiments, after being formed separately from the first cutting roll 10 It may be attached and fixed to both sides of the outer circumferential surface of the first cutting roll 10 by, for example, welding.

A seating surface 13 is automatically formed between the first ring-shaped cutters 11 protruding from the first cutting roll 10 . The seating surface 13 has a metal steel strip 3, both edges of which are cut by the first ring-shaped cutter 11 of the first cutting roll 10 and the second ring-shaped cutter 21 of the second cutting roll 20 . Forms a mounting surface. At this time, both ends of the metal steel strip 3 seated on the seating surface 13 are guided by the side surfaces of the first ring-shaped cutter 11 .

The second cutting roll 20 is arranged adjacent to the first cutting roll 10 described above. The second cutting roll 20 forms a kind of rolling scissors for simultaneously cutting both edges of the metal steel strip 3 together with the above-described first cutting roll 10, and is formed in a cylindrical shape as a whole.

The second cutting roll 20 is, for example, formed in a cylindrical shape rotatable by a motor 29 or the like, or a first cutting roll rotatable by a motor 19 by an electric unit, although not shown, 10), it is preferable to be electrically connected to the rotation of the first cutting roll 10 and to rotate.
The second cutting roll 20 is arranged adjacent to the first cutting roll 10 so that the metal steel strip 3 is introduced between the second cutting roll 10 and the first cutting roll 10 . The second cutting roll 20 is installed so that the position relative to the first cutting roll 10 can be adjusted according to the thickness of the metal steel strip 3 so that the position can be moved and fixed with respect to the first cutting roll 10 . It is preferable to be
Specifically, the first cutting roll 10 includes a pair of fixed blocks 15 at both ends, and the second cutting roll 20 is the second cutting roll disposed to correspond to the fixed block 15 . A pair of moving blocks 25 are included at both ends of (20), and the fixed block 15 is coupled to the moving block 20 to slide the moving block 25 in a longitudinal direction of a guide rod ( 17), wherein the moving block 25 includes a position fixing means (not shown) for fixing or releasing the position of the moving block 25 on the guide rod 17, the second cutting roll (20) may be installed to enable position movement and position fixation with respect to the first cutting roll (10) according to the thickness of the metal steel strip (3).

Accordingly, in order to adjust the relative position of the second cutting roll 20 with respect to the first cutting roll 10 , the fixing blocks 15 installed on both sides of the first cutting roll 10 have the second cutting roll 20 . The guide rods 17 to which the moving blocks 25 provided on both sides are slidably coupled are provided, and the moving blocks 25 of the second cutting roll 20 have the moving blocks 25 on the guide rods 17 . ) is preferably provided with a position fixing means (not shown) in the form of, for example, a clamping screw for fixing or releasing the position.

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On the outer peripheral surface of the second cutting roll 20, second ring-shaped cutters 21 are provided to be spaced apart. The second ring-shaped cutter 21 forms an inner cutting blade for simultaneously and continuously cutting both edges of the metal steel strip 3 together with the first ring-shaped cutter 11 of the first cutting roll 10 described above, The second cutting roll 20 has a shape that protrudes more and more from the center to the outside. To this end, the second ring-shaped cutter 21 of the second cutting roll 20 is formed at a position where the outer surface is in contact with the inner surface of the first ring-shaped cutter 11 of the first cutting roll 10 .

The second ring-shaped cutter 21 may be integrally formed with the second cutting roll 20 on both sides of the outer circumferential surface of the second cutting roll 20, and in some embodiments, after being formed separately from the second cutting roll 20 It may be attached and fixed to both sides of the outer peripheral surface of the second cutting roll 20 by, for example, welding.

In addition, it is preferable that the heating heater 30 is positioned above the first cutting roll 10 and the second cutting roll 20 .
Specifically, the heating heater 30 applies heat not only to both ends of the metal steel strip 3 positioned between the first cutting roll 10 and the second cutting roll 20 but also to one surface of the metal steel strip 3 as a whole. By being provided to be irradiated and heat-treated, both ends of the metal steel strip 3 are configured to be easily and quickly cut by the first ring-shaped cutter 11 and the second ring-shaped cutter 21, and the metal tube strip 3 ) can serve to quickly and easily perform roll forming of the metal steel strip (3) and welding of the seam by the pipe roll forming device to which the movement is made.
In addition, the heating heater 30 can be configured by a known heater including a known halogen lamp.

In addition, although the metal steel strip 3 which is cut at both edges by the edge cutting device of the metal steel strip according to an embodiment of the disclosure may be formed of aluminum, stainless steel (SUS) having excellent rigidity and corrosion resistance, in particular SUS 301, SUS 304, SUS 316, SUS 304L, SUS 316L series stainless steel is preferably formed.

Although not shown, the edge cutting device of the metal steel strip according to an embodiment of the disclosed content is installed between the inner tube extruder and the tube roll forming device after the metal steel strip 3 is drawn out from the roll of a predetermined width. After roll forming on the outer peripheral surface of the inner tube extruded from the inner tube extruder in a state in which both edges are cut by the edge cutting device of the metal steel strip according to the embodiment, the seam is welded.

A guide roller for guiding the inflow of the metal steel strip 3 is installed on the front side of the edge cutting device of the metal steel strip according to an embodiment of the disclosure, and on the rear side of the edge cutting device of the metal steel strip according to an embodiment of the disclosure A guide roller for guiding the discharge of the metal steel strip 3 with the edge cut may be installed.

In the case of the edge cutting device of the metal steel strip according to an embodiment of the disclosed contents as described above, an oxide film is easy to be formed immediately before roll forming the metal steel strip 3 on the outer surface of the inner tube extruded from the inner tube extruder with the tube roll forming machine. As the edge of the metal steel strip 3 is cut off, the metal steel strip 3 with both edges cut off immediately before roll forming is laminated on the outer surface of the inner tube through roll forming, and then the seam where the edges are in contact is welded. Welding due to the oxide film Defects can be minimized.

In addition, in the case of the edge cutting device of the metal steel strip according to an embodiment of the disclosure, the metal steel strip 3 positioned between the first cutting roll 10 and the second cutting roll 20 is applied to the heating heater 30 . As it is heat-treated by the heat treatment, not only the cutting of the metal steel strip 3 by the first ring-shaped cutter 11 and the second ring-shaped cutter 21, but also the subsequent roll forming by the pipe roll forming machine and welding of the seam can be made quickly and easily. do.

Although the preferred embodiment of the present invention has been described with reference to the accompanying drawings, the embodiments described in the present specification and the configuration shown in the drawings are only the most preferred embodiment of the present invention and represent all of the technical spirit of the present invention. Therefore, it should be understood that there may be various equivalents and modifications that can be substituted for them at the time of filing the present application. Therefore, the embodiments described above are to be understood as illustrative and not restrictive in all respects, and the scope of the present invention is indicated by the following claims rather than the detailed description, and the meaning and scope of the claims and their All changes or modifications derived from the concept of equivalents should be construed as being included in the scope of the present invention.

3: metal steel strip
10: first cutting roll
11: first ring cutter
13: seating surface
15: fixed block
17: guide rod
19: motor
20: first cutting roll
21: first ring cutter
25: moving block
29: motor
30: heating heater

Claims (1)

In the edge cutting device of a metal steel strip,
a first cutting roll formed in a rotatable cylindrical shape, provided with first ring-shaped cutters on both sides of an outer circumferential surface, and having a seating surface formed between the first ring-shaped cutters;
The metal steel strip is arranged adjacent to the first cutting roll and is formed in a rotatable cylindrical shape and is rotatable between the first cutting roll and the first cutting roll. a second cutting roll provided with a second ring-shaped cutter for cutting; and
and a heating heater disposed above the first cutting roll and the second cutting roll and irradiating heat to one surface of the metal steel strip positioned between the first cutting roll and the second cutting roll for heat treatment,
The first cutting roll is rotationally driven by a driving motor and the second cutting roll is rotated in association with the rotation of the first cutting roll by an electric unit,
The first cutting roll includes a pair of fixed blocks at both ends, and the second cutting roll includes a pair of moving blocks at both ends of the second cutting roll disposed to correspond to the fixed block,
The fixed block includes a guide rod in the longitudinal direction coupled to the moving block to slide and move the moving block, and the moving block includes a position fixing means for fixing or releasing the position of the moving block on the guide rod. So,
The second cutting roll is installed so as to be able to move and fix its position with respect to the first cutting roll according to the thickness of the metal steel strip,
After the first ring-shaped cutter is formed separately from the first cutting roll, it is attached and fixed to both sides of the outer peripheral surface of the first cutting roll, and the second ring-shaped cutter is formed separately from the second cutting roll and then formed separately from the outer peripheral surface of the second cutting roll It is attached and fixed on both sides,
The metal steel strip is formed of stainless steel,
The edge cutting device of the metal steel strip is installed between the inner tube extruder and the pipe roll forming device so that the metal steel strip is roll-formed on the outer peripheral surface of the inner tube extruded from the inner tube extruder with both edges cut so that the seam can be welded. and
A guide roller for guiding the inflow of the metal steel strip is installed on the front side of the edge cutting device for the metal steel strip, and a guide roller for guiding the discharge of the metal steel strip from which the edge is cut is installed on the rear side of the edge cutting device for the metal steel strip becomes,
The heating heater.
It is provided to irradiate heat to the entire surface of the metal steel strip located between the first cutting roll and the second cutting roll, and not only the cutting of the metal steel strip by the first ring-type cutter and the second ring-type cutter but also the pipe-making roll forming An edge cutting device for metal steel strip, characterized in that roll forming and seam welding by the device are performed quickly and easily.

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