KR20170068640A - Guide apparatus for dummy bar of continuous casting facilities - Google Patents

Guide apparatus for dummy bar of continuous casting facilities Download PDF

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Publication number
KR20170068640A
KR20170068640A KR1020150174621A KR20150174621A KR20170068640A KR 20170068640 A KR20170068640 A KR 20170068640A KR 1020150174621 A KR1020150174621 A KR 1020150174621A KR 20150174621 A KR20150174621 A KR 20150174621A KR 20170068640 A KR20170068640 A KR 20170068640A
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KR
South Korea
Prior art keywords
dummy bar
guide
dummy
continuous casting
bar
Prior art date
Application number
KR1020150174621A
Other languages
Korean (ko)
Inventor
김학태
조예승
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.)
Filing date
Publication date
Application filed by 주식회사 포스코 filed Critical 주식회사 포스코
Priority to KR1020150174621A priority Critical patent/KR20170068640A/en
Publication of KR20170068640A publication Critical patent/KR20170068640A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/08—Accessories for starting the casting procedure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/08—Accessories for starting the casting procedure
    • B22D11/085—Means for storing or introducing the starter bars in the moulds

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)

Abstract

The present invention relates to a device for centering a dummy bar passing through a casting portion of a continuous casting facility and guiding the dummy bar to one side, comprising: a transfer table for transferring the dummy bar passed through the casting portion; And a calibration unit extending from the side of the transfer table at least toward the dummy bar to guide the dummy bar to the center of the direction of travel.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a dummy bar guide for continuous casting equipment,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dummy bar guiding device for guiding a dummy bar used in a continuous casting facility, and more particularly to a dummy bar guiding device for centering a dummy bar, To a hoist hook direction to improve the quality and productivity of the continuous casting equipment.

In general, a continuous casting process is a process in which a molten steel is injected into a tundish through a long nozzle in a ladle containing refined molten steel, and a molten steel temporarily stored in a tundish Refers to a series of processes for producing castings such as BILLET, BLOOM, SLAB and the like by solidification through primary cooling at the MOLD and secondary cooling at the bottom of the mold.

In the continuous casting process, a segment pressing roll is driven to insert a dummy bar into a lower end of the mold, stopping the seal, sealing the gap, injecting the molten steel into a mold, drawing a dummy bar, And cutting and sorting the slab into a predetermined length.

FIG. 1 is a view showing a general continuous casting facility, and FIG. 2 is a view schematically showing a general dummy bar.

As shown in FIGS. 1 and 2, a continuous casting facility generally includes a dummy bar car 20 reciprocating between a dummy bar standby position and a dummy bar insertion position, And a hoist 60 for lifting and lowering the dummy bar 10 is provided at a dummy bar standby position of the dummy bar 10. The lower part of the mold 30 is provided with a casting part 40 are formed.

At this time, the casting section 40 is composed of a plurality of segments 41 to facilitate the movement of the cast steel and the dummy bars 10, and the dummy bars 10 are conveyed in the direction of the hoist 60 to the rear end of the casting section 40 A feed table 50 provided with a plurality of feed rolls 51 is provided and a hoist 60 is provided on the feed table 50 to feed the dummy bar 10 moved along the feed table 50 upward.

The hoist 60 for lifting the dummy bar 10 comprises a drive motor 61, a drive motor 62, a wire 63, a hook 64 and a hoist frame 65, A wire 63 is wound around the drive motor 62 and a hook 64 is fixed to the end of the wire 63. The wire 63 is wound around the wire 63,

At this time, the dummy bar 10 is linked to the dummy bar head 11, the dummy bar body 12 and the dummy bar tail 13 in a linked manner. Particularly, the dummy bar tail 13 is provided with the hoist 60 A hoist guider 13a spaced apart from the center in the width direction is formed so as to be caught by the pair of hooks 64. [

As a result, the dummy bar 10 moved downward is hooked and fixed to the pair of hoist guiders 13a formed on the dummy bar tail 13 by the hooks 64 of the hoists 60 , And moves upward.

However, when the centering of the dummy bar 10 does not fit, the hoist guider 13a is not hooked and fixed to the pair of hooks 64, so that the operator manually engages the hoist guider 13a and the hook 64 It takes a long time to work, which lowers the productivity and exposes workers to high temperature and heavy load environment, causing safety accidents.

Published Patent Application No. 10-2003-0034540 (2003. 05. 09.)

SUMMARY OF THE INVENTION The present invention has been conceived to solve the above-mentioned problems, and it is an object of the present invention to provide a dummy bar which can prevent a dummy bar from being meandering while guiding it in a hoist direction, Provides a dummy bar guide for casting equipment.

The dummy bar guide device of the continuous casting equipment according to an embodiment of the present invention is a device for centering a dummy bar passing through a casting portion of a continuous casting facility and guiding the dummy bar in a hoist direction, A transfer table having a plurality of transfer rolls; And a calibration unit extending from the side of the transfer table in the direction of the dummy bar to guide the dummy bar toward the center of the direction of travel.

Wherein the calibration unit comprises: a guide part contacting the dummy bar to guide the dummy bar to the center of the direction of movement; And a cylinder installed in the transfer table and extending in a lateral direction of the dummy bar to move the guide in a direction of a side of the dummy bar.

In the calibration unit, one surface of the guide portion contacting the side surface of the dummy bar is bent so that a central portion thereof protrudes in a direction of the dummy bar in the longitudinal direction, and the cylinder is connected to the center portion of the other surface of the guide portion via a hinge Do.

The guide portion may further include a guide wheel that is rotated at both ends in contact with the side surface of the dummy bar.

Preferably, the dummy bar guide device of the continuous casting equipment according to an embodiment of the present invention includes a meandering sensor installed at a front end of the dummy bar in the traveling direction of the dummy bar to measure a distance from the side of the dummy bar. And a control unit receiving the distance information of the dummy bar in the width direction from the meandering sensor and comparing the distance information with preset reference distance information to judge whether the dummy bar is meandering and transmitting an operation signal to the calibration unit .

The monitoring unit may further include a monitoring unit connected to the control unit to monitor the state of the dummy bar in real time.

According to the embodiment of the present invention, the dummy bar passing through the casting section is prevented from being meandered, thereby preventing the occurrence of safety accidents such as facility accidents.

Further, by accurately centering and guiding the dummy bar so that the hoist guider provided at the dummy bass portion is guided in the hook direction of the hoist, the continuous operation can be performed to improve the quality of the casting slab, .

1 is a view showing a general continuous casting facility,
Fig. 2 is a view schematically showing a general dummy bar,
3 is a view showing a dummy bar guide device of a continuous casting facility according to an embodiment of the present invention,
4 is an exploded view of a calibration unit according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to the embodiments. For reference, the same numbers in this description refer to substantially the same elements and can be described with reference to the contents described in the other drawings under these rules, and the contents which are judged to be obvious to the person skilled in the art or repeated can be omitted.

3 is a view showing a dummy bar guide device of a continuous casting facility according to an embodiment of the present invention.

3, the dummy bar guide device of the continuous casting equipment according to an embodiment of the present invention includes a transfer table 100 to which the dummy bar 10 passing through the casting unit 40 is transferred, 100 to center the dummy bar 10 along the direction of travel of the dummy bar 10 toward the center.

The feed table 100 extends downward from the hoist 60 at the end of the casting section 40 and a plurality of feed rolls 110 are disposed on the plane of the dummy bars 10 to facilitate the conveyance of the dummy bars 10. [ And are spaced apart from each other in the traveling direction.

4 is an exploded view of a calibration unit according to an embodiment of the present invention.

3 and 4, the calibration unit 200 according to an embodiment of the present invention contacts the side surface of the dummy bar 10 moved in the direction of the hoist 60 along the transfer table 100 The centering operation of the dummy bar 10 is performed to move the guide part 210 and the guide part 210 in contact with the dummy bar 10 in the lateral direction of the dummy bar 10, And a cylinder 220 for pressing the side surface of the dummy bar 10 to correct the meander.

At this time, the guide part 210 is formed in a rectangular parallelepiped shape, and is formed in a bent shape such that its central part protrudes in the direction of the dummy bar 10 in the longitudinal direction. That is, it is preferable that the guide unit 210 is formed in a bumed shape having a bent central portion. In a pair of the calibration units 200 having the same shape, each guide unit 210 is arranged in the lateral direction of the dummy bar 10 Respectively, on opposite sides of the transfer table 100. The transfer table 100 includes a plurality of transfer tables 100,

As a result, the dummy bars 10 are easily guided along the inclined surfaces while being guided in the direction of the center of the proceeding direction while the dummy bars 10 are easily inserted between the pair of guiding portions 210, The dummy bar 10 is guided in the direction of the hook 64 of the hoist 60 by guiding the hoist guider 13a spaced in the width direction to the dummy bar tail 13 while correcting the meander, The dummy bars 10 are naturally coupled to each other so that the continuous operation can be performed, and the productivity can be improved.

The cylinder 220 is not limited to the type shown in the above-described embodiment, and may be provided on the transfer table 100 and may include a guide portion 210 (not shown). The cylinder 220 may be a hydraulic cylinder, a pneumatic cylinder, Can be selectively moved in the lateral direction of the dummy bar 10 by the use of various operating means.

More preferably, the calibration unit 200 according to an embodiment of the present invention further includes a guide unit 210 and a hinge 230 that mediates the rod of the cylinder 220.

Thus, the guide part 210, which is bent in the center of the boomerang shape, is rotatably installed around the hinge 230, so that the dummy bar 10 can easily enter between the pair of guide parts 210, The centering operation of the dummy bar 10 can be easily performed.

Each of the guide portions 210 may further include a pair of guide wheels 211 that are rotated at both ends in contact with the side surface of the dummy bar 10. [

The guide wheel 211 provided at the end of the guide portion 210 contacts the side surface of the dummy bar 10 and is rotated as the dummy bar 10 advances to thereby affect the progress of the dummy bar 10 There is an effect that the occurrence of deformation or the like can be minimized by minimizing the impact and smoothly moving the guide part 210 in contact with the dummy bar 10. [

The dummy bar guide device of the continuous casting facility according to an embodiment of the present invention further includes a dummy bar 10 for detecting the meandering of the dummy bar 10 in real time from the meandering sensor 300 and the meandering sensor 300, And a control unit 400 for determining whether the dummy bar 10 is meandering and transmitting an actuating signal to the cylinder 220.

In this case, the meander sensor 300 may be an ultrasonic sensor, an infrared sensor, or the like, and the meander sensor 300 is not limited to the type of sensor shown in the above embodiment, Various types of sensors capable of sensing the distance to the side can be selectively applied.

The control unit 400 sets the reference distance to the side of the dummy bar 10 in advance and receives the distance information in the width direction from the side of the dummy bar 10 in real time from the meandering sensor 300, The control unit 20 determines that the dummy bar 10 has been skewed and transmits an operation signal to the cylinder 220 to move the guide unit in the lateral direction of the dummy bar 10, Calibration.

Meanwhile, the dummy bar guide device of the continuous casting equipment according to an embodiment of the present invention includes a separate monitoring unit 500 connected to the control unit 400 so that the operator can monitor the progress of the dummy bar 10 in real time .

In addition, the monitoring unit 500 includes a separate alarm device so that the operator can recognize immediately when the dummy bar 10 is operated. When the meander of the dummy bar 10 is not corrected even if the preset reference time elapses, In other words, when the dummy bar 10 can not be calibrated, it is possible for the operator to know immediately so that the facility accident can be prevented from occurring in advance and the continuous operation can be performed.

The operation of the dummy bar guide device of the continuous casting equipment according to the embodiment of the present invention will be described with reference to the drawings.

The dummy bar guide device of the continuous casting equipment according to an embodiment of the present invention operates a plurality of feed rolls 110 installed on the feed table 100 when the dummy bar 10 passes the casting section 40, The bar 10 is moved in the direction of the hoist 60.

At this time, the distance from the side of the dummy bar 10 is measured in real time from the meandering sensor 300 installed on the side of the transfer table 100, and transmitted to the controller 400. Then, Judge whether it is meandering.

When the control unit 400 determines that the dummy bar 10 has been skewed, an actuating signal is transmitted to the cylinder 220 to which the guide unit 210 is coupled to the rod end to guide the guide unit 210 to the side of the dummy bar 10. [ To correct the meander of the dummy bar 10 and send the current status information to the monitoring unit 500 so that the operator can monitor the progress of the dummy bar 10 in real time.

However, when the meandering correction operation of the dummy bar 10 exceeds the reference time set in advance, it is determined that an abnormality has occurred in the cylinder 220 or the meander detection sensor 300, and the operation is stopped and a separate alarm device is operated Signal to inform the operator.

This operation is continued until the hoist guide 13a of the dummy bar tail 13 is engaged with the hook 64 of the hoist 60. [

Although the present invention has been described with reference to the preferred embodiments thereof, it will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention as defined in the following claims. It can be understood that

10: Dummy bar 11: Dummy bar head
12: Dummy bar body 13: Dummy bar tail
60: Hoist 64: Hook
100: feed table 110: feed roll
200: calibration unit 210: guide unit
211: Guide wheel 220: Cylinder
230: Hinge 300: Meander detection sensor
400: control unit 500: monitoring unit

Claims (6)

An apparatus for centering and guiding a dummy bar passing through a casting section of a continuous casting facility to one side,
A transfer table for transferring the dummy bar passed through the casting part; And
And a calibrating unit extending from the side of the transfer table at least toward the dummy bar to guide the dummy bar to the center of the advancing direction.
The method according to claim 1,
The calibration unit includes:
A guide portion contacting the dummy bar to guide the dummy bar to the center of the traveling direction; And
And a cylinder disposed in the transfer table and extending in a lateral direction of the dummy bar to move the guide in a direction of a side of the dummy bar.
The method of claim 2,
The calibration unit includes:
Wherein one side of the guide portion contacting the side surface of the dummy bar is bent so that a central portion thereof protrudes in the direction of the dummy bar in the longitudinal direction and the cylinder is connected to the center portion of the other side of the guide portion via a hinge. Dummy bar guide device.
The method of claim 2,
The guide portion
And a guide wheel that is rotated at both ends in contact with the side surface of the dummy bar.
The method according to claim 1,
A meandering sensor installed at a front end of the calibration unit in a traveling direction of the dummy bar to measure a distance from the side of the dummy bar; And
And a control unit for receiving the distance information of the dummy bar in the width direction from the meandering sensor and comparing the distance information with preset reference distance information to determine whether the dummy bar is meandering and transmitting an operation signal to the calibration unit, Dummy bar guide of continuous casting equipment.
The method of claim 5,
And a monitoring unit connected to the control unit to monitor the state of the dummy bar in real time.
KR1020150174621A 2015-12-09 2015-12-09 Guide apparatus for dummy bar of continuous casting facilities KR20170068640A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150174621A KR20170068640A (en) 2015-12-09 2015-12-09 Guide apparatus for dummy bar of continuous casting facilities

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Application Number Priority Date Filing Date Title
KR1020150174621A KR20170068640A (en) 2015-12-09 2015-12-09 Guide apparatus for dummy bar of continuous casting facilities

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KR20170068640A true KR20170068640A (en) 2017-06-20

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190058967A (en) * 2017-11-22 2019-05-30 주식회사 포스코 Hook position adjusting device and position adjusting method using the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190058967A (en) * 2017-11-22 2019-05-30 주식회사 포스코 Hook position adjusting device and position adjusting method using the same

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