KR20090062147A - Apparatus for grinding slab - Google Patents

Apparatus for grinding slab Download PDF

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Publication number
KR20090062147A
KR20090062147A KR1020070129258A KR20070129258A KR20090062147A KR 20090062147 A KR20090062147 A KR 20090062147A KR 1020070129258 A KR1020070129258 A KR 1020070129258A KR 20070129258 A KR20070129258 A KR 20070129258A KR 20090062147 A KR20090062147 A KR 20090062147A
Authority
KR
South Korea
Prior art keywords
grinding
playing slab
grinding wheel
slab
playing
Prior art date
Application number
KR1020070129258A
Other languages
Korean (ko)
Inventor
이원호
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 KR1020070129258A priority Critical patent/KR20090062147A/en
Publication of KR20090062147A publication Critical patent/KR20090062147A/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B27/00—Other grinding machines or devices
    • B24B27/0023—Other grinding machines or devices grinding machines with a plurality of working posts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B27/00—Other grinding machines or devices
    • B24B27/0076—Other grinding machines or devices grinding machines comprising two or more grinding tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
    • B24B7/06—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor involving conveyor belts, a sequence of travelling work-tables or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
    • B24B7/10—Single-purpose machines or devices
    • B24B7/16—Single-purpose machines or devices for grinding end-faces, e.g. of gauges, rollers, nuts, piston rings
    • B24B7/17—Single-purpose machines or devices for grinding end-faces, e.g. of gauges, rollers, nuts, piston rings for simultaneously grinding opposite and parallel end faces, e.g. double disc grinders

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)

Abstract

A surface grinding apparatus of a continuous casting slab is provided to grind an upper surface and a lower surface of the continuous casting slab simultaneously by installing a grinding stone part. A surface grinding apparatus of a continuous casting slab comprises the followings: a drive motor(170) installed at the top and the bottom of the continuous casting slab(100); a grinding stone supporting shaft(160) installed by the drive motor; and a grinding stone part grinding an upper surface and a lower surface of the continuous casting slab. The grinding stone part includes a first grinding stone part(120) including a plurality of first grinding stones, a second grinding stone part(130) including second grind stone, a third grinding stone part(140) having a plurality of grinding stones, and a fourth grinding stone part(150) including fourth grinding stone.

Description

Surface grinding device for playing slabs {Apparatus For Grinding Slab}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a surface polishing apparatus of a playing slab, and more particularly, to a surface polishing apparatus of a playing slab for simultaneously polishing the upper and lower surfaces of a playing slab.

In general, cast steel cast in a continuous casting machine is supplied to the subsequent process by grinding the grooves generated on the surface through the cooling exaggeration of water cooling, slow cooling, or air cooling depending on the type of steel. In particular, the steel grade of the 400 series in the stainless steel production process is a defect occurs in the entire area of the surface, as shown in Figure 1A, the grinding operation is performed on the front surface of the playing slab.

Hereinafter, a method of polishing the surface of the playing slab will be described.

1 is an enlarged view of a defect formed on the surface of a playing slab. 2 is a perspective view showing a polishing method of the playing slab surface. 3 is a cross-sectional view of the playing slab polished to the grinding wheel.

1 to 3, in order to polish the surface of the playing slab 10, first, the grinding grindstone 20 is disposed on the upper surface of the playing slab 10. The grinding wheel 20 is rotated by the drive motor to polish the upper surface of the playing slab 10. More specifically, the grinding wheel 20 is rotated at a high speed, and repeatedly moved from one direction to the other direction of the playing slab 10. That is, the friction is applied to the surface of the playing slab 10 to peel off foreign substances formed on the surface of the playing slab 10. Thereafter, when the polishing process of the upper surface of the playing slab 10 is completed, the lower surface of the playing slab 10 is polished.

However, when the playing slab 10 is polished by the above-described method, the surface of the playing slab 10 is polished to the uneven surface as shown in FIG. 3B so that the surface of the playing slab 10 is not polished flat. There was a problem. In addition, in order to grind both the upper and lower surfaces of the playing slab 10, there is a troublesome process in that the upper surface of the playing slab 10 needs to be polished, and then the playing slab 10 must be turned over using a crane.

Accordingly, the present invention is an invention derived to solve the above-mentioned problems, and the present invention has a first object of simultaneously polishing the upper and lower surfaces of the playing slab.

Moreover, it is a 2nd objective that the grinding wheels of the grinding wheel part arrange | positioned at the same surface are mutually arrange | positioned mutually, and to grind | polish the surface of the grinding wheel part flat evenly.

In addition, the third object of the present invention is to further provide a grinding wheel on the side of the playing slab to simultaneously polish the top, bottom and side surfaces of the playing slab.

According to an aspect of the present invention for achieving the above object, the surface polishing apparatus of the playing slab according to the present invention includes a drive motor installed on the upper and lower parts of the playing slab; A grinding wheel support shaft coupled to the drive motor and rotatably installed by the drive motor; And a grinding wheel unit coupled to the support shaft to simultaneously polish the upper and lower surfaces of the playing slab.

At this time, the grinding wheel unit may include: a first grinding wheel unit including a plurality of first grinding wheels in one direction of the playing slab upper surface in the other direction; A second abrasive grindstone portion spaced apart from the first abrasive grindstone portion, the second abrasive grindstone portion including a second abrasive grindstone alternately disposed with the first abrasive grindstone; A third grinding wheel part including a plurality of third grinding wheels on a lower surface of the playing slab corresponding to the first grinding wheel part; And a fourth abrasive grindstone portion spaced apart from the third abrasive grindstone portion and including a fourth abrasive grindstone disposed to be alternated with the third abrasive grindstone. A fifth grinding wheel for grinding the side of the playing slab may be further provided on the side of the playing slab.

According to the present invention as described above, it is possible to polish the upper and lower surfaces of the playing slab at the same time by providing a grinding wheel on the upper and lower surfaces of the playing slab.

In addition, the grinding wheels of the grinding wheel parts arranged on the same surface may be staggered with each other to flatten the surface of the grinding wheel.

In addition, a grinding wheel is further provided on the side of the playing slab to simultaneously polish the top, bottom and side surfaces of the playing slab.

Hereinafter, with reference to the drawings showing an embodiment of the present invention, the present invention will be described in more detail.

4 is a perspective view showing the surface polishing apparatus of the playing slab according to the first embodiment of the present invention. FIG. 5 is a cross-sectional view taken along line II-II ′ of FIG. 4. 6 is a cross-sectional view of the playing slab polished according to the first embodiment of the present invention.

4 to 6, the grinding wheel support shaft 160 coupled to the surface polishing apparatus driving motor 170 and the driving motor 170 of the playing slab 100 and rotatably installed by the driving motor 170. ), The grinding wheel is coupled to the grinding wheel support shaft 160 to polish the upper and lower surfaces of the playing slab 100 at the same time.

 Grinding wheels are provided on the upper and lower surfaces of the playing slab (100). Polishing grindstone is installed in the longitudinal direction of the moving support 110 for moving and supporting the playing slab 100. The abrasive grindstone portion includes first and second abrasive grindstones 120 and 130 provided on the upper surface of the playing slab 100 and third and fourth abrasive grindstones 140 and 150 provided on the lower surface of the playing slab 100.

The first abrasive grindstone 120 is installed in the longitudinal direction of the moving support 110. In addition, the first grinding wheel 120 has a plurality of first grinding wheels 121 and 122 coupled to the grinding wheel support shaft 160, and a plurality of first grinding wheels 121 and 122 coupled to the support shaft 160 are included. Spaced apart from each other.

The second grinding wheel 130 is spaced apart from the first grinding wheel 120, and the second grinding wheels 131 and 132 of the second grinding wheel 130 are alternately disposed with the first grinding wheels 121 and 122. . This is to polish the protrusion that may be generated at the interface between the first grinding wheel 121 and the first grinding wheel 122. That is, the surface of the playing slab 100 polished by the first abrasive grindstone 120 is not polished at the interface of the first abrasive grindstones 121 and 122, so that a protrusion is formed, and the second grinding wheels 131 and 132 are used. Polish it. As a result, the upper surface of the playing slab 100 that is not polished by the first grinding wheels 121 and 122 is uniformly polished.

The lower surface of the playing slab 100 is provided with a third grinding wheel (see Fig. 5, 140) and a fourth grinding wheel 150 to polish the lower surface of the playing slab 100. The third grinding wheel 140 and the fourth grinding wheel 150 are provided by the same method as the first grinding wheel 120 and the second grinding wheel 130.

In addition, each grinding wheel support shaft 160 is provided with a drive motor 170, the support shaft 160 can be rotated through the drive motor 170. That is, the support shaft 160 is rotated using the drive motor 170, and the grinding wheels installed on the support shaft 160 are rotated.

Hereinafter, the process of polishing the surface of the playing slab 100 using the surface polishing apparatus of the playing slab 100 will be described.

In order to grind the upper and lower surfaces of the playing slab 100, first, the playing slab 100 is brought into the moving support 110. When the playing slab 100 is carried into the moving support 110, the support shaft 160 is rotated through the driving motor 170. When the support shaft 160 is rotated, a plurality of grinding wheels coupled to the support shaft 160 are rotated to polish the upper and lower surfaces of the playing slab 100. That is, in this embodiment, the upper and lower surfaces of the playing slab 100 are polished at the same time as shown in FIG.

7 is a perspective view showing the surface polishing apparatus of the playing slab according to the second embodiment of the present invention. 8 is a side cross-sectional view of the surface polishing apparatus of the playing slab according to the second embodiment of the present invention.

7 and 8, the present embodiment is generally the same as the first embodiment of the present invention, but the fifth grinding wheel 210 is further provided on the side of the playing slab 200. That is, the fifth abrasive grindstone 210 may be installed on the side surface of the playing slab 200 in the horizontal direction to polish the side surface of the playing slab 200.

Accordingly, the playing slab 200 may polish the upper surface, the lower surface and the side surface through a single mailing process.

As described above, the preferred embodiment of the present invention has been disclosed through the detailed description and the drawings. The terms are used only for the purpose of describing the present invention and are not used to limit the scope of the present invention as defined in the meaning or claims. Therefore, those skilled in the art will understand that various modifications and equivalent other embodiments are possible from this. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

1 is an enlarged view of a defect formed on the surface of a playing slab.

2 is a perspective view showing a polishing method of the playing slab surface.

3 is a cross-sectional view of the playing slab polished to the grinding wheel.

4 is a perspective view showing the surface polishing apparatus of the playing slab according to the first embodiment of the present invention.

FIG. 5 is a cross-sectional view taken along line II-II ′ of FIG. 4.

6 is a cross-sectional view of the playing slab polished according to the first embodiment of the present invention.

7 is a perspective view showing the surface polishing apparatus of the playing slab according to the second embodiment of the present invention.

8 is a side cross-sectional view of the surface polishing apparatus of the playing slab according to the second embodiment of the present invention.

♣ Explanation of symbols for the main parts of the drawing ♣

100, 200: playing slabs 110: moving support

120: first grinding wheel 130: second grinding wheel

140: third abrasive grindstone 150: fourth abrasive grindstone

160: grinding wheel support shaft 170: drive motor

210: fifth grinding wheel

Claims (3)

A drive motor installed at the top and bottom of the playing slab; A grinding wheel support shaft coupled to the drive motor and rotatably installed by the drive motor; And Surface grinding apparatus of the playing slab is coupled to the support shaft including a grinding wheel to polish the upper and lower surfaces of the playing slab at the same time. According to claim 1, The grinding wheel is A first grinding wheel part including a plurality of first grinding wheels in one direction of the playing slab upper surface in the other direction; A second abrasive grindstone portion spaced apart from the first abrasive grindstone portion, the second abrasive grindstone portion including a second abrasive grindstone alternately disposed with the first abrasive grindstone; A third grinding wheel part including a plurality of third grinding wheels on a lower surface of the playing slab corresponding to the first grinding wheel part; And And a fourth abrasive grindstone portion spaced apart from the third abrasive grindstone portion and including a fourth abrasive grindstone disposed alternately with the third abrasive grindstone. The method of claim 2, And a fifth grinding wheel for grinding the side of the playing slab on the side of the playing slab.
KR1020070129258A 2007-12-12 2007-12-12 Apparatus for grinding slab KR20090062147A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020070129258A KR20090062147A (en) 2007-12-12 2007-12-12 Apparatus for grinding slab

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020070129258A KR20090062147A (en) 2007-12-12 2007-12-12 Apparatus for grinding slab

Publications (1)

Publication Number Publication Date
KR20090062147A true KR20090062147A (en) 2009-06-17

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KR1020070129258A KR20090062147A (en) 2007-12-12 2007-12-12 Apparatus for grinding slab

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160149027A (en) 2015-06-17 2016-12-27 주식회사 포스코 Apparatus for grinding thick plate
CN109318099A (en) * 2018-09-17 2019-02-12 东旭集团有限公司 Curved glass convex surface polishing machine
CN110625530A (en) * 2018-06-22 2019-12-31 三星显示有限公司 Substrate polishing apparatus

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160149027A (en) 2015-06-17 2016-12-27 주식회사 포스코 Apparatus for grinding thick plate
CN110625530A (en) * 2018-06-22 2019-12-31 三星显示有限公司 Substrate polishing apparatus
KR20200000509A (en) * 2018-06-22 2020-01-03 삼성디스플레이 주식회사 Substrate polishing apparatus
CN110625530B (en) * 2018-06-22 2024-03-15 三星显示有限公司 Substrate polishing apparatus
CN109318099A (en) * 2018-09-17 2019-02-12 东旭集团有限公司 Curved glass convex surface polishing machine

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