KR20170052723A - Apparatus for colling wire-rod coil - Google Patents

Apparatus for colling wire-rod coil Download PDF

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Publication number
KR20170052723A
KR20170052723A KR1020150153656A KR20150153656A KR20170052723A KR 20170052723 A KR20170052723 A KR 20170052723A KR 1020150153656 A KR1020150153656 A KR 1020150153656A KR 20150153656 A KR20150153656 A KR 20150153656A KR 20170052723 A KR20170052723 A KR 20170052723A
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KR
South Korea
Prior art keywords
roller
wire
coil
oblique
disposed
Prior art date
Application number
KR1020150153656A
Other languages
Korean (ko)
Inventor
강승훈
이종빈
박성호
서도원
김형진
Original Assignee
주식회사 포스코
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 주식회사 포스코 filed Critical 주식회사 포스코
Priority to KR1020150153656A priority Critical patent/KR20170052723A/en
Publication of KR20170052723A publication Critical patent/KR20170052723A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
    • B21B45/0203—Cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B39/008—Rollers for roller conveyors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B39/14—Guiding, positioning or aligning work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
    • B21B45/0203—Cooling
    • B21B45/0209—Cooling devices, e.g. using gaseous coolants

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)

Abstract

A wire rod coil cooling apparatus is disclosed. The apparatus for cooling a wire coil according to an embodiment of the present invention includes a roller conveyor provided with a plurality of feed rollers for dropping a coil of wire wound on a laying head to a stacker, And at least one conveying roller and a diagonal roller disposed at an angle to the conveying roller adjacent to the conveying roller so as to change the traveling direction.

Description

[0001] APPARATUS FOR COLLING WIRE-ROD COIL [0002]

The present invention relates to a wire coil cooling apparatus, and more particularly, to a wire coil cooling apparatus having a roller conveyer capable of changing a traveling path of a wire coil.

Generally, a wire rod is produced by heating a material in a heating furnace to approximately 1000 to 1200 ° C and subjecting the hot wire rod having passed through rolling mills (rough rolling, intermediate rough rolling, intermediate rolling and finishing rolling) When it is formed in the shape of a circular coil, it is conveyed along the conveying roller of the roller conveyor, heat-treated through air cooling, then accumulated through a reforming tub, and then put into the inspection line.

On the other hand, since the wire coil fed along the feed roller is conveyed on the roller conveyor in the form of the non-concentric ring, there is a difference in the rack density in the width direction of the wire coil, and the problem that the wire coil can not be uniformly cooled there was.

Korean Patent Laid-Open No. 10-0352590 (published Nov. 18, 2002)

The embodiments of the present invention are intended to provide a wire coil cooling apparatus capable of changing the traveling path of the wire coil without providing a separate structure around the roller conveyor, thereby uniformly cooling the wire coil.

According to an aspect of the present invention, there is provided a sheet conveying apparatus comprising a roller conveyor provided with a plurality of conveying rollers for conveying a wire coil wound and dropped from a laying head to an accumulator, wherein at least one of the plurality of conveying rollers And a slanting roller disposed at an angle to the conveying roller adjacent to the at least one conveying roller so as to be able to change the angle of the conveying roller.

The predetermined angle may be within 2 to 10 degrees.

The plurality of conveying rollers include a plurality of oblique roller sections composed of the oblique roller while being spaced apart from each other by a predetermined distance along the advancing direction of the wire member coil and the oblique roller disposed in any one of the plurality of oblique roller sections And may be disposed so as to have an inverse slope with the oblique roller disposed in the neighboring oblique roller section.

And the number of slanting rollers disposed in the second slanting roller section along the traveling direction of the wire coil is twice the number of slanting rollers disposed in the first slanting roller section along the traveling direction of the wire material coil.

And the number of slanting rollers arranged in the last slanting roller section along the traveling direction of the wire coil is within 0.66 to 1.33 times the number of slanting rollers disposed in the first slanting roller section.

The inclined roller may be inclined via a joint which is engaged with two side walls of the roller conveyor.

The embodiments of the present invention can change the traveling path of the wire coil by changing only the arrangement of the feeding rollers so that it is not necessary to install a separate structure for changing the traveling path around the roller conveyor.

1 is a schematic view illustrating a wire rod production process according to an embodiment of the present invention.
FIG. 2 shows a process of feeding a wire coil wound on the laying head of FIG.
Fig. 3 shows the wire coil cooling zone of Fig. 2. Fig.
4 is a plan view of a roller conveyor according to an embodiment of the present invention.
5 shows a part of a roller conveyor according to an embodiment of the present invention.
FIG. 6 is a perspective view illustrating a connecting portion of a diagonal roller according to an embodiment of the present invention. FIG.
7 is an operational state diagram of a wire coil for conveying along a roller conveyor according to an embodiment of the present invention.
FIG. 8 is a graph showing the lateral movement of the wire coil according to the embodiment of the present invention.
FIG. 9 is a graph showing a change in the duplex density with respect to one overlapping portion in the wire coil according to the embodiment of the present invention. FIG.
FIG. 10 is a chart showing a change in the movement of the oblique roller according to the embodiment of the present invention.
11 is a chart showing the moving distance of the center of the wire coil according to the number of the slanted rollers according to the embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The embodiments described below are provided by way of example so that those skilled in the art will be able to fully understand the spirit of the present invention. The present invention is not limited to the embodiments described below, but may be embodied in other forms. In order to clearly explain the present invention, parts not related to the description are omitted from the drawings, and the width, length, thickness, etc. of the components may be exaggerated for convenience. Like reference numerals designate like elements throughout the specification.

FIG. 1 is a schematic view of a wire rod manufacturing process according to an embodiment of the present invention. FIG. 2 is a view showing a process of feeding a wire coil wound around the laying head of FIG. 1, FIG.

1 to 3, the rolling material heated to a temperature suitable for rolling in the heating furnace 1 is subjected to rough rolling 2, intermediate rough rolling 3, intermediate finishing rolling 4, finish rolling 5, The hot circular wire material having passed through the final rolling 6 is wound by the laying head 8 and continuously conveyed in the form of a ring to the roller conveyor 20 and then integrated into the wire coil in the collector 14 .

At this time, the wire rod coil 10 to be conveyed is cooled by the blowing equipment provided at the lower part of the roller conveyor 20. [

Concretely, the blowing air generated from the blower 11 is blown through the duct 12 through the slot-shaped blowing opening 13 disposed at the lower portion of the roller conveyor 20, so that the wire rod coil 10 is cooled .

Since the wire rod coil 10 is transferred on the roller conveyor 20 in the form of a ring, the cooling speed difference between the central portion and the edge portion of the wire rod coil 10 is generated due to the difference in the stacking density of the ring, A tensile strength deviation is caused.

In other words, as shown in FIG. 3, the center portion of the ring-shaped wire-wound coil 10 having a low overlap density has a low cooling rate and a low temperature, and the edge portion of the ring-shaped wire- .

Therefore, in the present embodiment, a roller conveyor capable of uniformly cooling the edge overlap portion of the wire rod coil 10 is provided.

FIG. 4 is a plan view of a roller conveyor according to an embodiment of the present invention, FIG. 5 shows a part of a roller conveyor according to an embodiment of the present invention, Fig.

4 to 6, a roller conveyor 20 according to an embodiment of the present invention includes a plurality of roller conveyors 20 for conveying the wire-wound coils 10 falling from the laying head 8 to the collector 14 A conveying roller 21 and two sidewalls 22 and 23 for rotatably supporting both ends of the plurality of conveying rollers 21.

The wire coil 10 mounted on the plurality of feed rollers 21 is fed by the rotation of the plurality of feed rollers 21 and the wire coil 10 mounted thereon is transported toward the collector 14, Is cooled by the air blown from the lower portion of the conveying roller 21 while being conveyed.

The plurality of conveying rollers 21 can be spaced apart at predetermined intervals along the extending direction of the two sidewalls 22 and 23 and can be moved in a predetermined direction along the advancing direction of the wire- At least one of the plurality of conveying rollers 21 may be made of a diagonal roller 24 arranged at an angle to the adjacent conveying rollers 21 at a predetermined angle.

Here, the diagonal roller 24 refers to a roller disposed at an angle (?) Inclined to the conveying roller 21 supported vertically to the two side walls 22,

Here, the predetermined angle [theta] of the oblique roller 24 is set so that the possibility of conveyance of the wire-wound coil 10 moving along the plurality of feed rollers 21, whether the wire-wound coil 10 is moved left and right and the overlapping portion of the edge of the wire- 2 DEG to 10 DEG.

Example Transferability Left and right motion Change overlap 1 ° O X X 2 ° O O O 5 ° O O O 8 ° O O O 10 ° O O O 11 ° X - -

As shown in Table 1 and FIG. 10, when the oblique angle? Of the oblique roller 24 is 1 °, the wire-wound coil 10 can be conveyed along the roller conveyor 20, When the angle of inclination of the oblique roller 24 is 11 °, the wire-wound coil 10 is rotated by the roller conveyor 20 It can be seen that it is not transported. Therefore, it can be understood that the inclined angle? Of the oblique line roller 24 should be within 2 to 10 degrees.

Meanwhile, between the plurality of feed rollers 21 along the advancing direction of the wire member coil 10, a diagonal roller section (not shown) is periodically provided between the plurality of feed rollers 21 so as to cause a periodic lateral movement behavior change of the wire member coil 10 conveyed along the roller conveyor 20. [ a 1 to a n may be arranged. Here, the oblique roller sections a 1 to a n mean that the oblique roller sections 24 are continuously arranged in a predetermined number or more in each section.

Wire coil 10 of a plurality of scan line roller sections disposed a predetermined distance apart along the direction of movement of the (a 1 ~ a n), the diagonal roller 24 is disposed at one section of the other oblique roller section neighboring (a 1 ~ a < / RTI > n ).

4, the oblique roller 24 disposed at the second oblique roller section a 2 is disposed in the other oblique roller section a 1 , a 3 disposed before and after the advancing direction of the wire coil 10 And may be provided to be symmetrical with the oblique roller 24.

7 and 8, when the wire coil 10 passes through one of the oblique roller sections a 1 and moves toward the one sidewall 22, it passes the next oblique roller section a 2 , To the other side wall 23 side. As the overlapping portion of the wire rod coil 10 is changed through the change of the traveling direction of the wire rod coil 10 as shown in Fig. 9, the deviation in the cooling rate between the overlapping portion and the non-overlapping portion of the wire rod coil 10 is solved.

On the other hand, the number of the slanted rollers 24 disposed at the first oblique roller section a 1 may be 1/2 times the number of the slanted rollers 24 disposed at the second oblique roller section a 2 .

This is because the wire coil 10 dropped from the laying head 8 is placed in the central area of the roller conveyor 20 and then moved along the plurality of feed rollers 21 to be disposed in the first oblique roller section a 1 changing the direction of the side wall 22, the next scan line roller section (a 2) in the wire coil (10) adjacent the other side wall 23 is then adjacent to go to by the diagonal roller 24 in order to be.

The number of the oblique rollers 24 disposed at the last oblique roller section a n is set to be smaller than the number of the oblique rollers 24 disposed at the center of the roller conveyor 20 in order to move the wire- And the number of the slanted rollers 24 disposed in the first oblique roller section a 1 as shown in FIG. 11 and FIG. 11, within 0.66 to 1.33 times.

Example Movement distance of coil center point Possibility of winding the collector 0.66 times 20mm O 1x 5mm O 1.33 times 25mm O

On the other hand, the oblique roller 24 can be rotated in a state in which it is disposed in a diagonal direction via a joint 30 connected to the side walls 22 and 23 of the roller conveyor 20 as shown in FIG. This is for easily changing the angle of the oblique roller 24 only through the change of the fastener position without structural change of the conveying roller 21 coupled to the side walls 22 and 23 of the conventional roller conveyor 20. [ The joint 30 includes a first joint 31 coupled to the sidewalls 22 and 23 and a second joint 31 coupled to the first joint 31 and the first joint 31 to allow the misalignment between the slanted roller 24 and the first joint 31. [ And a second joint 32 connecting the rollers 24.

10: wire coil, 20: roller conveyor,
21: conveying roller, 22, 23: side wall,
24: diagonal roller, 30: joint.

Claims (6)

And a roller conveyor provided with a plurality of conveying rollers for conveying the wire-wound coils fallen from the laying head to the accumulator,
Wherein at least one of the plurality of conveying rollers comprises a slanting roller arranged so as to be inclined at a predetermined angle with respect to the at least one conveying roller and the conveying rollers adjacent to the at least one conveying roller so as to change the traveling direction of the wire material coil. The method according to claim 1,
Wherein the predetermined angle is within 2 to 10 degrees. The method according to claim 1,
Wherein the plurality of conveying rollers include a plurality of oblique roller sections composed of the oblique roller while being spaced apart from each other at a predetermined interval along a traveling direction of the wire member coil,
Wherein the oblique roller disposed at any one of the plurality of oblique roller sections is disposed so as to have an inverse inclination with respect to the oblique roller disposed at another adjacent oblique roller section. The method according to claim 1,
Wherein the number of slanting rollers arranged in a second oblique roller section along the traveling direction of the wire coil is twice the number of oblique roller arranged in the first oblique roller section along the traveling direction of the wire coil. Device. 5. The method of claim 4,
Wherein the number of slanting rollers disposed in the last slanting roller section along the traveling direction of the wire coil is within 0.66 to 1.33 times the number of slanting rollers disposed in the first slanting roller section. The method according to claim 1,
Wherein the diagonal roller is disposed obliquely via a joint coupled to two side walls of the roller conveyor.
KR1020150153656A 2015-11-03 2015-11-03 Apparatus for colling wire-rod coil KR20170052723A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150153656A KR20170052723A (en) 2015-11-03 2015-11-03 Apparatus for colling wire-rod coil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150153656A KR20170052723A (en) 2015-11-03 2015-11-03 Apparatus for colling wire-rod coil

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022227325A1 (en) * 2021-04-28 2022-11-03 中天钢铁集团有限公司 Cooling roller way for improving cooling uniformity of spinning coil and usage method
CN116689479A (en) * 2023-08-08 2023-09-05 中冶检测认证有限公司 Technological method for producing vanadium-free low-silicon hot rolled ribbed steel bars

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022227325A1 (en) * 2021-04-28 2022-11-03 中天钢铁集团有限公司 Cooling roller way for improving cooling uniformity of spinning coil and usage method
CN116689479A (en) * 2023-08-08 2023-09-05 中冶检测认证有限公司 Technological method for producing vanadium-free low-silicon hot rolled ribbed steel bars
CN116689479B (en) * 2023-08-08 2023-12-26 中冶检测认证有限公司 Technological method for producing vanadium-free low-silicon hot rolled ribbed steel bars

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