KR101511725B1 - Moving type cutting apparatus - Google Patents

Abstract

According to the present invention, there is provided an apparatus for cutting a slab installed in a performance machine, the apparatus comprising: a support disposed on the performance machine along a width direction of the casting; A guide connected to the support along the longitudinal direction of the support; A cutter holder coupled to the guide; A driver for moving the cutter holder along the guide; A cutter connected to the cutter holder so as to be disposed in a direction crossing the guide; And a controller for controlling the supply amount of the fuel supplied to the cutter and the operation of the driver, thereby stably cutting and removing the object stagnated in the movement path over the operation in the continuous casting process.

Description

[0001] Moving type cutting apparatus [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a moving-type cutting apparatus, and more particularly, to a moving-type cutting apparatus capable of stably cutting and removing an object stagnated in a moving path in a continuous casting process.

In a continuous casting process, molten steel is continuously injected into a mold having a predetermined shape, and the molten steel is continuously drawn into the lower side of the mold to form slabs, blooms, , Billet, and the like.

In the mold, the molten steel is drawn out of the mold in an uncured state without being completely solidified, and is moved by the segment including the plurality of rolls, and is completely cooled to produce a solid cast steel.

On the other hand, it sometimes happens that the main body is stagnated in the player, for example, between the segments, without being pulled out normally. In this case, when the cast steel is solidified in the casting machine, normal drawing is not possible. Therefore, the boundary between the curved section and the straight section (vertical section) is cut at the casting section. The curved section is drawn down through the roll of the segment, The dummy bar can be inserted and withdrawn to the upper part. At this time, in order to withdraw the slab, the slab of the straight section must be drawn first.

If the casting is not normally pulled out, the casting stagnated in the casting machine is cooled, and the casting and bender are sequentially separated from the casting machine, and then the casting is removed. However, in the case of the casting mold, the casting can be taken out because it is in a vertical state, but in the case of casting in the bender provided at the lower part of the casting mold, the curved section is formed in the lower side, that is, in front of the segment, . Therefore, after cutting the slab at the boundary between the bender and the segment, the slab located in the mold and the bender can be withdrawn to the upper portion.

However, when the cutting machine is not pulled out normally, the operator cuts the cutting machine directly, and the working environment is very narrow, the worker is hard to maintain a stable posture, and the working environment is very hot,

KR 20-0309058Y

The present invention provides a movable cutting apparatus capable of easily cutting an object to be stood on a moving path in a course of operation or more.

The present invention provides a movable cutting device capable of cutting an object by stably installing the object on a moving path.

The present invention provides a mobile cutting device capable of alleviating workload of a worker and suppressing the occurrence of a safety accident.

A moving type cutting apparatus according to an embodiment of the present invention is an apparatus for cutting a cast steel that is installed in a performance machine and includes a support base disposed on the performance machine along a width direction of the cast steel; A guide connected to the support along the longitudinal direction of the support; A cutter holder coupled to the guide; A driver for moving the cutter holder along the guide; A cutter connected to the cutter holder so as to be disposed in a direction crossing the guide; And a controller for controlling the supply amount of the fuel supplied to the cutter and the operation of the driver.

The support base may be formed to be adjustable in length and height, and may be fixedly installed in a space formed around a segment of the performance apparatus in a width direction of the cast steel.

The support may include a leveling system.

The guide may include a guide body disposed in parallel with the support, and a first rack provided on one side of the guide body in a longitudinal direction of the guide body.

The driver may include a first pinion which engages with the first rack, and a drive motor which provides a rotational force to the first pinion.

The cutter holder includes a first support bar vertically connected to the actuator, a second support bar connected to the first support bar in a direction crossing the first support bar, and a clamp provided at at least both ends of the second support bar to grip the cutter And a second rack and a third rack may be formed on the outer circumferential surfaces of the first support bar and the second support bar along the longitudinal direction of the first support bar and the second support bar.

And a position adjuster for adjusting the positions of the second support bars in the vertical direction and the horizontal direction.

And a fixing device for connecting the second support rods so as to be movable in the longitudinal direction of the first support bar, wherein the position adjuster includes a second pinion provided in the fixing device and engaged with the second rack and the third rack, And may include a third pinion.

 The cutter is formed in a bar shape, a nozzle for generating a flame is formed at one end, an injection port for injecting fuel is formed at the other end, and the cutter holder is connected to the other end of the cutter to adjust the level of the cutter A leveling device can be connected.

The support may be disposed between the bender of the performance apparatus and the segment.

The movable cutting apparatus according to the embodiment of the present invention can automatically cut a billet that is not normally pulled out due to equipment abnormality or operation abnormality during continuous casting. Accordingly, the occurrence of a safety accident can be suppressed or prevented, and the burden on the worker can be reduced. In addition, since it can be installed easily at the cutting position of the cast steel, it is possible to shorten the recovery time by quickly responding to the equipment abnormality or the operation abnormality, and thus the productivity can be improved.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view of a musical instrument equipped with a movable cutting device according to an embodiment of the present invention; Fig.
2 is a perspective view showing a structure of a movable cutting apparatus according to an embodiment of the present invention;
3 is an enlarged perspective view of the main part of the movable cutting device;
4 to 6 are views showing a use state of the movable cutting apparatus 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. It should be understood, however, that the invention is not limited to the disclosed embodiments, but is capable of other various forms of implementation, and that these embodiments are provided so that this disclosure will be thorough and complete, It is provided to let you know completely.

2 is a perspective view showing the structure of a mobile cutting device according to an embodiment of the present invention, and FIG. 3 is a perspective view showing a mobile cutting device according to an embodiment of the present invention. Is a perspective view of the enlargement of the lumbar part of the body.

Referring to FIG. 1, a casting machine includes a tundish 200 for holding a molten metal in a ladle 100, a mold 300 for solidifying the molten steel by receiving molten steel from the tundish 200, A nozzle (not shown) having one end connected to the tundish 200 and the other end inserted into the mold 300 to supply molten steel in the tundish 200 into the mold, A bender 310 installed to bend the cast steel S drawn from the casting mold 300 and a plurality of segments 34 for pressing and guiding the cast steel S having passed through the bender 310 using a plurality of rollers 410 (Not shown) for injecting cooling water into the cast steel S moved by the plurality of segments 400 and solidifying the cooling water, and a player controller (not shown) for controlling the operation of the player. Here, the performance controller controls the amount of cooling water injected through the coolant injection means and the casting speed.

The player according to the embodiment is a conventional player used for manufacturing the slab S, and a description thereof will be omitted.

In the present invention, the movable cutting device 500 for cutting the slab S is provided in the above-described continuous machine, and the stagnated slab is cut off from the machine without being pulled out normally due to abnormality or abnormal operation of the machine, can do.

As shown in Fig. 1, the mobile cutting device 500 is installed around the segment 400 of the performance machine, and cuts the billet S stagnating in the player. The movable cutting device 500 can be installed at various positions where cutting of the main cutting edge is required on the path that the main cutting edge moves in the performance machine. The movable cutting device 500 can be automatically operated after installation at a work site where the worker is difficult to perform the work, so that the work S can be automatically cut. The movable cutting device 500 is installed in the vicinity of the segment 400 located in front of the bender 310 among the boundary area between the bender 310 and the segment 400 that is the boundary area between the straight line section and the curved section An example will be described.

2 and 3, the mobile cutting device 500 includes a support 510 disposed on the segment 400 of the player and along the widthwise direction of the slab S, A cutter holder 530 connected to the guide 520, a driver 540 for moving the cutter holder 530 along the guide 520, a guide 520 for moving the cutter holder 530 along the guide 520, A cutter 570 connected to the cutter holder 530 so as to be disposed in a direction intersecting the cutter 570 and a controller (not shown) for controlling the operation of the driver 540 and the amount of fuel supplied to the cutter 570.

The support base 510 may be installed along the width direction of the casting in a space formed at the upper portion or the lower portion of the segment. The supports 510 can be fixed to a wall disposed on the top or bottom of the segment and formed on both sides of the segment. The support frame 510 includes a support frame 518 for supporting the bottom surface of the space in a space formed at the upper portion or the lower portion of the segment and support plates 511 and 512a , 512b, 513a, 513b.

The support frame 518 may be formed in a 'C' shape in which both ends are bent upward or downward to support a bottom surface of a space formed in the periphery of the segment, and the center portion is formed in a flat plate shape. At this time, both ends of the support frame 518 and the center portion may be separately formed and then joined together. Alternatively, the support frame 518 may be formed in the form of a leg supporting the support plates 511, 512a, 512b, 513a, 513b.

The support plates 511, 512a, 512b, 513a, and 513b are disposed along the longitudinal direction of the support plates 511, 512a, 512b, 513a, and 513b on both sides of the main plate 511 and the main plate 511, And includes fixing plates 513a and 513b respectively connected to the ends of the auxiliary plates 512a and 512b and the auxiliary plates 512a and 512b which are movably connected. The main plate 511 is fixed to a flat portion at the central portion of the support frame 518 and may be formed to have a length shorter than the distance between the walls formed on both sides of the segment. Further, the main plate 511 may be formed to have a length similar to the length of the flat central portion in the support frame 518. [ The auxiliary plates 512a and 512b are movably connected to both sides of the main plate 511 so that the degree of overlapping with the main plate 511 at both ends of the main plate 511 is adjusted, 512b, 513a, and 513b can be adjusted. At this time, the auxiliary plates 512a and 512b are formed so as not to be connected to the support frame 518, and can move in the horizontal direction. The fixing plates 513a and 513b are respectively connected to the ends of the auxiliary plates 512a and 512b to press the wall formed around the segments. The fixing plates 513a and 513b are formed to have an area larger than the cross-sectional area of the auxiliary plates 512a and 512b, thereby increasing the contact area with the wall, thereby more stably fixing the support table 510. [

With such a structure, the support table 510 is disposed in the space around the segments, and then the auxiliary plates 512a and 512b are moved toward the wall side so that the fixing plates 513a and 513b press both walls of the space, Can be installed.

On the other hand, in the case of separating the movable cutting device from the cutting position, it can be performed by moving the auxiliary plates 512a and 512b toward the main plate 511 and releasing the pressing of the wall through the fixing plates 513a and 513b.

The support plates 511, 512a, 512b, 513a, 513b may be disposed in parallel to the surface of the cast steel. That is, since the distance between the support plates 511, 512a, 512b, 513a, 513b and the surface of the cast steel is constant, the flame generated in the cutter 570 must be transmitted with a constant energy to the cast steel, Accordingly, the support frame 518 can be vertically adjustable to adjust the height of the support plates 511, 512a, 512b, 513a, and 513b. At this time, a horizontal system (not shown) is installed on the support table 510, for example, the support plates 511, 512a, 512b, 513a and 513b to check the horizontal state of the support plates 511, 512a, 512b, 513a, The height of the plates 511, 512a, 512b, 513a, 513b can be adjusted.

The guide 520 is attached to the support plates 511, 512a, 512b, 513a, 513b by the first fixing means 514 along the longitudinal direction of the support plates 511, 512a, 512b, 513a, 513b, , 512a, 512b, 513a, 513b. At this time, the guide 520 may be formed on one side of the support plates 511, 512a, 512b, 513a, 513b. Also, the guide 520 may be provided on the upper surface or the lower surface of the support plates 511, 512a, 512b, 513a, 513b. The guide 520 is used as a path along which the cutter 570 moves when cutting the slab.

The guide 520 includes a guide body 522 disposed in parallel with the support plates 511, 512a, 512b, 513a, 513b, and a first rack 524 formed along the longitudinal direction of the guide body 522 do. When the guide body 522 is connected to the support plates 511, 512a, 512b, 513a, 513b through one side surface as shown in FIG. 3, the first rack 524 is attached to the other side of the guide body 522 . And at least one of the upper surface and the lower surface of the guide body 522 is provided with a first rack 524 for preventing disengagement of the driver 540 including a first pinion to move the cutter holder 530, A guide groove 526 may be formed.

The driver 540 is connected to the guide 520 to reciprocate the cutter holder 530 along the longitudinal direction of the guide 520 (see FIG. 6). The driver 540 may include a first pinion that engages with the first rack 524 of the guide 520 and a drive motor that provides a rotational force to the first pinion. The driving unit 540 may include a guide roller 546 that is engaged with the guide groove 526 formed in the guide 520 to prevent the guide roller 526 from separating from the guide 520.

A cable for receiving an operation signal transmitted from the control unit may be connected to the driver 540.

The cutter holder 530 supporting the cutter 570 is connected to the driver 540 by the second fixing means 545. The cutter holder 530 includes a first support bar 535 arranged in the vertical direction, a second support bar 531 arranged in the direction intersecting the first support bar 535, a clamp 532 holding the cutter 570 ).

The lower end of the first support rod 535 is connected to the driver 540 through the second fixing means 545 and is arranged in the vertical direction. A second rack 535a may be formed on the outer circumferential surface of the first support bar 535 along the longitudinal direction of the first support bar 535. The first support bar 535 supports the entire cutter holder 530 and is connected to the driver 540 by a second securing means 545. The first support bar 535 is configured to adjust the height of the cutter 570, that is, the height in the vertical direction.

The second support rods 531 are connected by the third fixing means 551 in a direction intersecting with the first support rods 535, for example, orthogonal to each other. A third rack 531a may be formed on the outer circumferential surface of the second support bar 531 along the longitudinal direction of the second support bar 531. The clamps 532 are connected to both ends of at least the second support bars 531 to grip the cutter 570. With this configuration, the cutter 570 can be supported by the second support bar 531.

The third fixing means 551 connects the first and second support rods 535 and 531 so that the second support rods 531 that support the cutter 570 substantially extend in the longitudinal direction of the first support rods 535 That is, vertically movable along the first support rod 535. The third fixing means 551 connects the second supporting bar 531 with the first supporting bar 535 so as to be movable in a direction crossing the first supporting bar 535, that is, left and right.

The third fixing means 551 may include a position adjuster 550 for adjusting the position of the cutter 570 by moving the second support bar 531 in the up and down direction and the left and right direction.

The position adjuster 550 includes a second pinion 554 connected to the third fixing means 551 and engaged with the second rack 535a and a third pinion 552 engaged with the third rack 531a can do. At this time, the second pinion 554 and the third pinion 552 are provided with a second pinion 554 and a first knob 556 and a second knob 553 for providing rotational force to the third pinion 552, respectively Can be connected. The first knob 556 and the second knob 553 can be manually rotated by an operator. Here, the operator manually rotates the second pinion 554 and the third pinion 552, but the second pinion 554 and the third pinion 552 are automatically rotated through separate driving means It is possible.

The adjustment of the position of the cutter 570 in the up and down direction rotates the first knob 556 so that the second pinion 554 is engaged with the second rack 535a formed on the outer peripheral surface of the first support rod 535, (Refer to FIG. 5) of the first supporting bar 535 connected to the third fixing means 551 (see FIG. 5).

The lateral movement of the cutter 570 in the horizontal direction is controlled by rotating the second knob 553 to rotate the third pinion 552 which is engaged with the third rack 531a formed on the outer peripheral surface of the second support rod 531 To move the second support bar 531 in the left or right direction along the rotation direction of the second knob 553 with respect to the first support bar 535. [ At this time, the third fixing means 551 is connected to the first supporting bar 535, and the second supporting bar 531 is moved in the left and right direction by the third fixing means 551 fixed to the first supporting bar 535 . (See FIG. 6)

The cutter 570 is provided with an injection port 574 through which fuel such as LNG (Linquified Natural Gas) or oxygen is injected to generate a flame at one end, a nozzle 572 for discharging flame is formed at the other end, A flow path for communicating the injection port 574 and the nozzle 572 is formed. The cutter 570 is formed in a bar shape and the other end side where the injection port 574 is formed is connected to the cutter holder 530 and the one end side where the nozzle 572 generating the flame is formed is formed apart from the cutter holder 530 do. Therefore, even if the flame is emitted from the nozzle 572 for cutting the slab, the side of the support 510 and the slider holder 530 can be protected from the high temperature.

The cutter 570 is formed in a bar shape and the center of gravity of the cutter 570 is biased toward the nozzle 572 because the side of the nozzle 572 where the flame is generated extends from the cutter holder 530. Even when the cutter 570 is adjusted to be horizontal, it may be difficult to maintain the horizontal position of the cutter holder 530 and the support table 510 supporting the cutter 570 due to vibration or the like which may occur during the cutting process . A horizontal adjuster 560 may be provided to maintain the cutter holder 530 in a direction to support the cutter holder 530 at one side thereof, for example, in a direction of supporting the injection port 574 side in the cutter 570. The level adjuster 560 may include a support rod 563 connected to one side of the cutter holder 530 in parallel with the cutter 570 and weight weights 562a and 562b connected to the support rods 563 . At least one weight weight 562a, 562b may be provided and may be connected to be movable along the longitudinal direction of the support rod 563. A screw thread 564 is formed at the end of the support rod 563 and a screw thread (not shown) is formed inside the weight weights 562a and 562b to mate with the threads 564 of the support rod 563, 562a, and 562b so as to be movable along the longitudinal direction of the support rod 563. [ Accordingly, at least a part of the weights 562a and 562b, for example, the weight 562b may be moved along the longitudinal direction of the support rod 563 according to the horizontal state of the cutter 570 to adjust the level. The horizontal of the cutter 570 can be manually adjusted by rotating the weights 562a and 562b by an operator, but it is also possible to connect the separate weights 562a and 562b with separate driving means (not shown) It can also be adjusted.

The control unit controls the operation of the driver 540 to move the cutter 570 and adjust the moving speed thereof. In addition, the control unit may adjust the valve installed in the fuel supply pipe supplied to the cutter 570 to control the supply and cutoff of the fuel and the flow rate of the fuel. Also, it may be connected to driving means for driving the position adjuster 550 or the weight weights 562a and 562b to control the operation thereof. At this time, since the working environment for cutting the cast steel is poor, it is preferable that the control unit is provided at a distance from the cutting position of the cast steel.

Hereinafter, a method of cutting a slab using a movable cutting apparatus according to an embodiment of the present invention will be described.

FIGS. 4 to 6 are views showing the use of the movable cutting device according to the embodiment of the present invention.

If the casting is not properly pulled out due to abnormal operation of the casting machine or continuous operation during continuous casting, the movable cutting device is installed at the cutting position.

The movable cutting device is installed by moving the auxiliary plates 512a and 512b to the main plate 511 as much as possible to reduce the length of the support plates 511, 512a, 512b, 513a and 513b to the maximum, And is disposed in a space formed around the segments disposed in front of them. At this time, the legs of the support frame 518 are disposed to support the bottom surface.

After the support frame 518 is aligned in the horizontal direction, the auxiliary plates 512a and 512b are moved to the outside of the main plate 511 so that the fixing plates 513a and 513b are pressed against the wall surfaces formed in the space.

Next, the cutter 570 is fixed to the cutter holder 530 using the clamp 532. [

When the cutter 570 is fixed, the second support bar 531 of the cutter holder 530 is moved up and down and left and right using the position adjuster 550 provided in the third fixing means 551, Thereby adjusting the distance between the nozzle 572 and the casting. 4, the vertical position of the second support bar 531 may be adjusted, and then the horizontal position of the second support bar 531 may be adjusted as shown in FIG.

Then, the weight is moved along the longitudinal direction of the support rod to adjust the level of the cutter 570.

Next, a cable for transmitting the driving signal to the driver 540 for moving the cutter 570 is connected, and the fuel supply line is connected to the injection port 574 to supply fuel to the cutter 570. [

Next, a valve (not shown) of the fuel reservoir (not shown) connected to the fuel supply line is opened to supply fuel to the injection port 574 of the cutter 570 and ignite to ignite the flame through the nozzle 572 . And the size of the flame is adjusted by controlling the flow rate of the fuel.

6, the cutter 570 is moved along the width direction of the cast steel to cut the cast steel 570, as shown in FIG. 6, do.

When the cutting of the cast steel is completed, the operation of the driver 540 is stopped and the fuel supply is stopped.

Then, the installation process of the movable cutting device is performed in the reverse direction to separate from the installation position.

In the above description, the movable cutting device according to the embodiment of the present invention has described a method of cutting a piece around a segment in front of a bender. However, the present invention can be applied to various places where cutting of a cast steel is required.

Although the present invention has been described in connection with certain exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. Therefore, the scope of the present invention should not be limited by the described embodiments, but should be defined by the appended claims and equivalents thereof.

100: ladle 200: tundish
300: Template 310: Bender
400: segment 500: movable cutting device

Claims (10)

An apparatus for cutting a slab,
A support disposed on the player in a width direction of the casting;
A guide connected to the support along the longitudinal direction of the support;
A cutter holder coupled to the guide;
A driver for moving the cutter holder along the guide;
A cutter connected to the cutter holder so as to be disposed in a direction crossing the guide;
A controller for controlling a supply amount of fuel supplied to the cutter and an operation of the driver;
Lt; / RTI >
The cutter is formed in a bar shape, a nozzle for generating a flame is formed at one end, an injection port for injecting fuel is formed at the other end,
Wherein the cutter holder is connected to the other end of the cutter and connected to a level adjuster for adjusting the level of the cutter. The method according to claim 1,
Wherein the support base is formed so as to be adjustable in length and height, and is fixedly installed in a space formed in the periphery of the segment of the performance machine in the width direction of the cast steel. The method of claim 2,
Wherein said support comprises a leveling system. The method according to claim 1,
The guide
A guide body disposed in parallel with the support,
And a first rack provided on one side of the guide body in a longitudinal direction of the guide body. The method of claim 4,
Wherein the driver includes a first pinion that engages with the first rack, and a drive motor that provides a rotational force to the first pinion. The method of claim 5,
The cutter holder
A first support rod vertically connected to the driver,
A second support rod connected in a direction crossing the first support rods,
And a clamp provided at least at both ends of the second support bar to grip the cutter,
And a second rack and a third rack are formed on the outer circumferential surfaces of the first support bar and the second support bar along the longitudinal direction of the first support bar and the second support bar. The method of claim 6,
And a position adjuster for adjusting the vertical and horizontal positions of the second support bar. The method of claim 7,
And fixing means for connecting the second support rods so as to be movable in the longitudinal direction of the first support rods,
And the position adjuster includes a second pinion and a third pinion provided in the fixing means and engaged with the second rack and the third rack, respectively. delete The method according to any one of claims 1 to 8,
Wherein the support is disposed between the bender and the segment of the implement.

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