KR101529183B1 - Apparatus for correcting shape of coil - Google Patents

Apparatus for correcting shape of coil Download PDF

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Publication number
KR101529183B1
KR101529183B1 KR1020140036383A KR20140036383A KR101529183B1 KR 101529183 B1 KR101529183 B1 KR 101529183B1 KR 1020140036383 A KR1020140036383 A KR 1020140036383A KR 20140036383 A KR20140036383 A KR 20140036383A KR 101529183 B1 KR101529183 B1 KR 101529183B1
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KR
South Korea
Prior art keywords
coil
shaft
winding
segment
winding coil
Prior art date
Application number
KR1020140036383A
Other languages
Korean (ko)
Inventor
임준석
김형진
정도균
Original Assignee
현대제철 주식회사
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Publication date
Application filed by 현대제철 주식회사 filed Critical 현대제철 주식회사
Priority to KR1020140036383A priority Critical patent/KR101529183B1/en
Application granted granted Critical
Publication of KR101529183B1 publication Critical patent/KR101529183B1/en

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    • 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
    • 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
    • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/28—Drums or other coil-holders

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Winding, Rewinding, Material Storage Devices (AREA)

Abstract

An apparatus to correct a coil shape is disclosed. The apparatus to correct the coil shape comprises: a shaft part inserted into a hollow part of a wound coil wherein a diameter of the shaft part can be expanded to make a contact with an inner wound part of the wound coil; a magnetic force part connected with the shaft part, generating a magnetic force; and a shaft rotating part rotating the shaft part in a state where the shaft rotating part makes close contact with the inner wound part. The apparatus to correct the coil shape may correct a loosen coil shape which is loosely wound to be more compactly shaped; thereby a deflection and deformation caused by the loosen shape of the wound coil may be prevented. Moreover, the poor shape of the rolled material, which is caused by the deflection and deformation of the wound coil, may be prevented.

Description

[0001] APPARATUS FOR CORRECTING SHAPE OF COIL [0002]

The present invention relates to a coil shape correcting apparatus, and more particularly, to a coil shape correcting apparatus capable of correcting the shape of a coil wound loosely.

Typical steelmaking consists of a steelmaking process to produce molten iron, a steelmaking process to remove impurities from molten iron, a casting process to transform solid iron into solid, and a rolling process to make iron into steel or wire.

In the rolling process, the slab is charged into a heating furnace and reheated at a temperature suitable for rolling (1100 to 1300 ° C) to extract the product. The product is then subjected to a tensile rolling and a thickness rolling through a roughing mill. And a rolling process.

BACKGROUND ART [0002] The background art of the present invention is disclosed in Korean Utility Model Registration No. 205995 (Registered on Dec. 28, 2000, entitled Design: Dancer's coil calibration device).

It is an object of the present invention to provide a coil shape correcting apparatus capable of more closely correcting the winding shape of a loosely wound coil.

A coil shape correcting apparatus according to the present invention comprises: a shaft portion fitted in a hollow portion of a winding coil and having a diameter expandable to contact with the inner winding portion of the winding coil; A magnetic portion connected to the shaft portion and forming a magnetic force; And a shaft rotating part for rotating the shaft part in a state in which the shaft part is in close contact with the inner winding part.

The shaft portion may include a cylindrical wedge; A segment coupled to the periphery of the wedge and coupled with the magnetic portion; And a driving device for moving the wedge or the segment to expand the diameter of the segment.

It is preferable that the magnetic portion includes an electromagnet.

It is preferable that the shaft rotating portion rotates the inner winding portion of the winding coil in a direction in which the diameter is expanded.

It is also preferable that the present invention further includes a support portion for supporting the outer coil portion of the winding coil so that the diameter of the outer coil portion of the winding coil is maintained.

According to the coil shape correcting apparatus of the present invention, the winding shape of the coil wound loosely can be more closely corrected while the shaft portion is brought into close contact with the inner winding portion of the winding coil by the magnetic force formed in the magnetic portion.

In addition, by tightly correcting the shape of the winding coil, it is possible to prevent sagging and distortion caused by winding the winding coil loosely, and consequently defective shape of the rolled material.

1 is a perspective view schematically showing a coil shape correcting apparatus according to an embodiment of the present invention.
Fig. 2 is an operational state diagram for explaining a state in which the shaft portion is inserted into the hollow portion of the winding coil.
3 is an operational state diagram for explaining a state in which the shaft portion is in close contact with the inner winding portion of the winding coil.
4 is an operational state diagram illustrating a process of correcting the shape of a loose winding coil while rotating a shaft portion.
5 is an operational state diagram showing a state in which the winding interval of the winding coils is tightly corrected using the coil shape correcting apparatus according to the embodiment of the present invention.

Hereinafter, an embodiment of a coil shape correcting apparatus according to the present invention will be described with reference to the accompanying drawings.

In this process, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation.

In addition, the terms described below are terms defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, definitions of these terms should be made based on the contents throughout this specification.

1 is a perspective view schematically showing a coil shape correcting apparatus according to an embodiment of the present invention.

Referring to FIG. 1, a coil shape correcting apparatus 300 according to an embodiment of the present invention includes a shaft portion 310, a magnetic portion 330, a shaft rotation portion 350, and a support portion 370.

The flat rolled coil is cooled to the coiling temperature through the cooling process for convenience of storage and transportation, and then wound into a circle as shown in Fig.

Hereinafter, a coil wound in a circular shape is referred to as a winding coil 10.

The shaft portion 310 has a shaft shape that can pass through the hollow portion 11 of the winding coil 10 and the outer surface of the shaft portion 310 is inserted into the hollow portion 11, Respectively.

The shaft portion 310 according to an embodiment of the present invention includes a wedge 311, a segment 313, and a driving device 315. [

The wedge 311 is a part of the supporting frame of the shaft portion 310 and has a shaft shape extended to one side.

A plurality of segments 313 are coupled to the periphery of the wedge 311 to form an arc-shaped curved surface corresponding to the inner circumferential portion 13 of the winding coil 10.

The drive device 315 is a device that provides a driving force for expanding or contracting the diameter of the shaft portion 310 formed by the wedge 311 and the segment 313 and may include a hydraulic cylinder,

It is possible to move the segments 313 in the radial direction of the wedge 311 at the same time by using the driving device 315 to move the segments 313 radially around the wedge 311, Thereby enlarging or reducing the diameter of the second end 310.

When the contact portion between the wedge 311 and the segment 313 is inclined in the axial direction of the wedge 311, the wedge 311 is pushed or pulled in the axial direction by the driving device 315, Can be pushed simultaneously in the radial direction of the wedge 311.

The shaft portion 310 is not limited to a specific structure and shape and can be formed in any desired shape as long as it can implement an operation structure for moving and returning other members disposed around the center member as described above. The description is omitted.

The magnetic portion 330 is a device for bringing the segment 313 into close contact with the inner circumference portion 13 by magnetic force and is connected to the segment 313 including an electromagnet.

An electromagnet is a device that includes a core made of a magnetic material and a coil surrounding the core. When an electric current flows in the coil, the core is magnetized.

When the electromagnet is provided in the magnetic portion 330, whether or not the magnetic force is generated and the intensity can be adjusted while adjusting the supply of the electric current.

The magnetic portion 330 includes a sensor 331 having a structure in which a plurality of segments are connected to each of the segments 313 and sensing a contact between the segment 313 and the winding coil 10. In this embodiment,

Accordingly, the sensor 311 senses the segment 313 of the plurality of segments 313 which is in contact with the winding coil 10 and is connected to the segment 313 in which the contact with the winding coil 10 is sensed Only the magnetic portion 330 can be selectively operated.

As a result, the inner portion 13 at a position spaced apart from the segment 313 is pressed against the segment 313 by magnetic force so that the inner portion 13 can be stably fixed to the segment 313 The inner portion 13 can be brought into close contact with each other.

When the magnetic portions 330 are connected to the respective segments 313, a plurality of segments 313 are sequentially arranged in the winding direction of the winding coil 10 from the end portion of the inner winding portion 13 The plurality of segments 313 can be brought into close contact with the inner circumferential portion 13 more stably.

Fig. 2 is an operational state view for explaining a state in which a shaft portion is inserted into a hollow portion of a winding coil, and Fig. 3 is an operational state diagram for explaining a state in which a shaft portion is in close contact with an inner winding portion of the winding coil.

2, when the drive unit 315 (see FIG. 1) is operated with the shaft portion 310 sandwiched between the hollow portions 11, the wedge 311 or the segment 313 is moved, The diameter of the shaft portion 310 formed by the segment 311 and the segment 313 is enlarged.

The segment 313 is moved in the radial direction of the wedge 311 by the operation of the driving device 315 as described above and comes into contact with the inner winding portion 13 as shown in Fig.

When the current is supplied to the magnetic portion 330 in a state where the segment 313 is in contact with the inner portion 13 as described above, the segment 313 can be more tightly adhered to the inner portion 13 by the magnetic force.

The shaft rotation part 350 is a device for rotating the shaft part 310 in a state in which the shaft part 310 is in close contact with the inner part 13 by a magnetic force as described above and includes a motor for generating a rotational driving force, A gear member for connecting the rotation shaft to the shaft portion 310, and the like.

FIG. 4 is an operational state view for explaining a process of correcting the shape of a loose winding coil while rotating a shaft portion, FIG. 5 is a view showing a state in which the winding interval of the winding coil is tightly corrected by using a coil shape correcting device according to an embodiment of the present invention Fig.

When the shaft portion 310 is rotated in the winding direction of the winding coil 10 as shown in FIG. 4 by operating the shaft rotation portion 350, the inner winding portion 13 is moved toward the outer winding portion 15, It is possible to more closely correct the winding state of the recording medium 10.

Here, the winding direction of the winding coil 10 extends in the circumferential direction from the end of the inner section 13 toward the end of the outer section 15, that is, the diameter of the inner section 13 is increased .

When the shaft portion 310 is rotated in the winding direction of the winding coil 10, as shown in Fig. 5, the inner diameter portion 13 is expanded in diameter. In other words, The shape of the winding coil 10 is calibrated in a form more closely attached to the winding portion 15.

When the shape of the shaft portion 310 is rotated while rotating the shaft portion 310 in the winding direction of the winding coil 10 as described above, during the operation as shown in FIGS. 2 to 5, (15) maintains a constant diameter.

The support portion 370 is a device for restricting movement such as rolling of the winding coil 10 in the process of maintaining the diameter of the outer shell 15 and rotating the shaft portion 310 with the support portion 370.

The support portion 370 according to an embodiment of the present invention includes an end portion 371 having an upper surface portion on which the winding coil 10 can be placed and a support portion 372 having an upper portion 371 close to the winding coil 10 And a moving base 373 that is moved apart.

As shown in Fig. 2, the winding coil 10 to be a work is placed on an end tooth 371, and the outer side of the winding coil 10 in a state of being placed on the end tooth 371 as shown in Fig. The outer jacket 15 can be movably supported in a plurality of positions and directions by moving the movable table 373 so as to be in contact with the jacket 15.

4 and 5, the shaft portion 310 is rotated while the support portion 370 is in contact with the outer peripheral portion 15 in a plurality of positions and directions as described above, so that the shape of the winding coil 10 Can be calibrated stably.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. I will understand. Accordingly, the technical scope of the present invention should be defined by the following claims.

10: Winding coil 11: Hollow part
13: My Exercise 15:
310: shaft portion 311: wedge
313: Segment 315: Driving device
330: magnetic part 331: sensor
350: a shaft rotation part 370:
371: enemy tooth 373:

Claims (5)

A shaft portion which is fitted in the hollow portion of the winding coil and whose diameter can be extended so as to contact with the inner winding portion of the winding coil;
A magnetic portion connected to the shaft portion and forming a magnetic force; And
And a shaft rotating part for rotating the shaft part in a state in which the shaft part is in close contact with the inner winding part,
The shaft portion
A cylindrical wedge;
A segment coupled to the periphery of the wedge and coupled with the magnetic portion; And
And a driving device for moving the wedge or the segment to expand the diameter of the segment,
The magnetic portion includes:
A plurality of segments including an electromagnet are connected to each of the segments,
And a sensor for sensing the segment of the plurality of segments in contact with the winding coil,
Wherein only the magnetic part connected to the segment in which contact with the winding coil is sensed by the sensor is selectively activated.
A shaft portion which is fitted in the hollow portion of the winding coil and whose diameter can be extended so as to contact with the inner winding portion of the winding coil;
A magnetic portion connected to the shaft portion and forming a magnetic force; And
And a shaft rotating part for rotating the shaft part in a state in which the shaft part is in close contact with the inner winding part,
The shaft portion
A cylindrical wedge;
A segment coupled to the periphery of the wedge and coupled with the magnetic portion; And
And a driving device for moving the wedge or the segment to expand the diameter of the segment,
The magnetic portion includes:
A plurality of segments including an electromagnet are connected to each of the segments,
Wherein the plurality of segments are sequentially operated to have a magnetic force along a winding direction of the winding coil from an end of the inner winding portion among the plurality of segments.
delete 3. The method according to claim 1 or 2,
The shaft-
And the inner circumference portion is rotated in a direction in which the diameter is expanded.
3. The method according to claim 1 or 2,
Further comprising: a support portion for supporting the outer coil portion of the winding coil so that the diameter of the outer coil portion of the winding coil is maintained.
KR1020140036383A 2014-03-27 2014-03-27 Apparatus for correcting shape of coil KR101529183B1 (en)

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KR1020140036383A KR101529183B1 (en) 2014-03-27 2014-03-27 Apparatus for correcting shape of coil

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101858834B1 (en) * 2016-10-04 2018-05-18 주식회사 포스코 Segment roll

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19980043352U (en) * 1996-12-24 1998-09-25 김종진 Duckbill Coil Internal Calibrator
KR20020050378A (en) * 2000-12-21 2002-06-27 이구택 Device for prevention untie tail-part in strip
KR20030035551A (en) * 2001-10-31 2003-05-09 주식회사 포스코 Mandrel apparatus for expanding by two stages the diameter of the mandrel of tension reel

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19980043352U (en) * 1996-12-24 1998-09-25 김종진 Duckbill Coil Internal Calibrator
KR20020050378A (en) * 2000-12-21 2002-06-27 이구택 Device for prevention untie tail-part in strip
KR20030035551A (en) * 2001-10-31 2003-05-09 주식회사 포스코 Mandrel apparatus for expanding by two stages the diameter of the mandrel of tension reel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101858834B1 (en) * 2016-10-04 2018-05-18 주식회사 포스코 Segment roll

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