KR102088448B1 - Bender apparatus, casting apparatus and casting method - Google Patents

Abstract

The present invention is installed on both sides of the path of the object to be moved, interconnected frames, rollers supported by the frames, a positioning unit mounted laterally on one frame, connected to one end of the positioning unit Become the base; It is connected to the other end of the positioning unit, and a bender device including a driving unit for rotating the positioning unit, a casting device including the bender device, and a casting method using the bender device, and more particularly, installed in a facility A bender device, a casting device, and a casting method using the same are provided, which can quickly reposition the position determining part even if it deviates from the reference position due to wear or deformation.

Description

 Bender device, casting device and casting method {BENDER APPARATUS, CASTING APPARATUS AND CASTING METHOD}

The present invention relates to a bender apparatus, a casting apparatus, and a casting method, and more particularly, to a bender apparatus, a casting apparatus, and a casting method capable of quickly repositioning even if the positioning portion is damaged and deviates from the reference position.

The continuous casting facility of the steelworks is a facility that continuously casts solid cast steel using, for example, liquid molten steel. It replaces the ladle and ladle transporting the molten steel, receives the molten steel from the ladle, temporarily stores it, and stores the molten steel stored inside It includes a tundish that is continuously supplied to the mold, a mold that continuously solidifies molten steel that is continuously supplied from the tundish, and a cooling zone that continuously draws the cast from the mold and cools and molds the cast. Among them, the cooling table includes a bender disposed under the mold and a plurality of segments arranged at the bottom of the bender to form a drawing path for the cast.

The vendor serves to bend the cast. The vendor's alignment has a significant impact on the quality of the cast. Location Bush is responsible for vendor alignment. For example, when the vendor is installed on a continuous casting machine and is online, the location bush is supported by vertical bars to maintain the reference position. Thus, the vendor maintains the alignment.

Here, the online state means a state in which the vendor is prepared to be used in the casting process, or a state in which the vendor is using the casting process.

While the casting process is in progress, the casting pressurizes the bender, and in particular, when a molten steel leak or stagnation occurs, forcibly drawing the casting, a large load is applied to the bender. At this time, the location bush is pressed against the vertical bars, and the outer circumferential surface of the location bush can be pressed. As a result, the location bush deviates from the reference position, and the alignment of the vendor is distorted. If the vendor's alignment is misaligned, cracks may occur inside the cast steel or tensile deformation of the cast steel may cause enormous quality abnormalities.

Continuous casting equipment is a facility that handles hot and heavy molten steel and cast iron, so it is difficult for workers to access during operation. Therefore, the operator cannot directly check in real time the deformation of the location bush during the casting process.

Accordingly, the defect of alignment of the vendor and the deformation of the location bush are indirectly checked from the occurrence of an abnormality in the casting, or the deformation of the location bush is periodically checked during maintenance after the casting process is completed. Therefore, it is not possible to cope with the deformation of the location bush in real time, and it is difficult to maintain the alignment of the vendor in real time.

In addition, if the location bush is deformed, the casting process is terminated, the vendor is separated from the continuous casting facility, and the modified location bush is replaced with a new location bush in the offline state of the vendor. Therefore, there is a problem in that the number of maintenance and productivity are reduced due to frequent replacement of the location bush.

Here, the offline state means that the vendor is in the process of being prepared or the vendor is in the process of being serviced.

The background art of this invention is published in the following patent document.

KR 10-2014-0019710 A KR 10-1526443 B1

The present invention provides a bender apparatus, a casting apparatus, and a casting method capable of repositioning even if the positioning portion is damaged and deviates from the reference position.

Bender device according to an embodiment of the present invention, the frame is installed on both sides of the path to be processed object; Rollers supported on the frames; A positioning unit installed laterally on one of the frames; A base portion connected to one end portion of the positioning portion and constraining both sides of the one end portion of the positioning portion; And a driving unit connected to the other end of the positioning unit and formed to axially rotate the positioning unit.

A sensing unit detecting a gap between the one end portion and the base portion of the positioning unit; A control unit that controls the operation of the driving unit according to the detection result of the sensing unit; And a display unit that displays a detection result of the detection unit.

The driving unit axially rotates the positioning unit so that the damaged surface formed at the one end of the positioning unit and the base unit do not contact each other, and the positioning unit uses the axial rotation to rotate the positioning unit and the base unit of the positioning unit. The interval may be restored to an initial interval, and the one frame may restore the position of the one frame with respect to a reference position using axial rotation of the positioning unit.

The frames are interconnected via a rod portion, the rod portion maintains the spacing of the frames, and the movement of the one frame can be transmitted to another frame.

The one frame includes outer frames that are spaced apart from each other in the lateral direction, and inner frames that connect the outer frames, the positioning portion penetrates any one of the outer frames, and the base portion is outside the outer frames. The driving unit may be disposed inside the outer frames.

The positioning unit, a location pin that is mounted laterally on the one frame, one end protrudes outside the one frame, and the other end protrudes inside the one frame; And a location bush mounted on the one end of the location pin, and both sides contacting the base portion.

The base portion is provided on the outside of the one frame, a horizontal bar facing the one end of the positioning portion; It may include; vertical bars in contact with both sides of the one end of the positioning unit, supported on the horizontal bar.

The driving unit may include a plurality of gears and a driver so that the positioning unit can be axially rotated.

The driving unit, the ring gear is disposed inside the one frame, the other end of the positioning unit is inserted; A rack gear coupled to the ring gear; And a driver supported on the one frame and elevating the rack gear.

The sensing unit is supported by the base unit, and detects the distance between the center of the one end of the positioning unit and the base unit, and the control unit rotates the shaft at a predetermined angle when the gap is outside a preset reference interval range. In order to control the operation of the driving unit.

The casting apparatus according to the embodiment of the present invention includes a mold for solidifying an object to be treated; A bender disposed under the mold and drawing the object; And a segment disposed under the bender; and the bender may include a position adjuster to restore a position with respect to the segment.

The position adjuster may include: a position determination unit that adjusts the position of the frames of the bender to a correct position with respect to the segment using axial rotation; And it may include; a driving unit for axially rotating the positioning unit.

The positioning portion is laterally mounted to one of the frames, one end protrudes outside the one frame, and one end of the positioning portion is constrained by both sides by a base portion installed outside the one frame, The positioning unit may have the other end protruding inside the one frame, and the other end may be connected to the driving unit.

The one frame maintains the distance from the other frame via the rod portion, and the driving portion rotates the positioning portion so that the base portion does not contact the damaged surface formed at the one end portion of the positioning portion, and the position The one end of the determination unit may adjust the distance between the center of the one end and the base by using axial rotation, and the one frame may restore the position of the one frame to the correct position by using the axis rotation of the positioning unit. have.

The vendor may include: a sensing unit configured to detect a position change of the one end of the positioning unit; A control unit controlling an operation of the driving unit in response to the position change; And a display unit that displays a detection result of the detection unit.

The driving unit may include a plurality of gears and a driver to axially rotate the positioning unit, and the plurality of gears may include a ratchet gear to prevent reverse rotation of the positioning unit.

Casting method according to an embodiment of the present invention, the process of solidifying the object to be processed in a mold; Drawing the object to be processed from the mold using a bender device; And restoring the location of the bender device; and the restoring process may be performed before the drawing process, during the drawing process, or after the drawing process.

The restoring process may include: rotating a positioning unit connected to one frame among frames of the bender device; And restoring the position of the frames to the initial position by the axis rotation.

The restoring process may include: rotating the positioning unit so that the damaged surface of the one end of the positioning unit does not come into contact with a base connected to the one end of the positioning unit; A process of moving the positioning unit to a fixed position by rotating the shaft; And restoring the position of the frames to the initial position by the movement.

Before the process of restoring, the step of sensing the distance between the one end and the base of the positioning unit; including, selectively performing the process of axially rotating the positioning unit according to the detection result of the gap, In the process of axially rotating the positioning unit, if the interval is smaller than a preset reference interval, the positioning unit may be rotated at a predetermined angle.

According to the embodiment of the present invention, it is possible to detect in real time that the positioning device of the bender device is damaged while the bender device is installed in the casting device and used in the continuous casting process. Further, even if the positioning unit is damaged and deviates from the reference position, the positioning unit can be quickly repositioned to the reference position while continuing to operate the bender device.

For example, when applied to a continuous casting facility, when the location bush is squeezed against vertical bars and the outer peripheral surface is damaged while the bender device is installed in the continuous casting facility, the location bush deviates from the reference position, which can be detected in real time. have.

In addition, if the location bush deviates from the reference position, the location bush can be rotated by rotating the location pin. Accordingly, while continuing the casting process, the non-pressing portion of the outer circumferential surface of the location bush can be newly brought into contact with the vertical bars, and the location bush can be quickly repositioned to the reference position by this method.

For example, without replacing the location bush, the location pin and location bush can be quickly repositioned to the reference position by rotating the location pin axially so that the damaged surface of the location bush does not contact the vertical bars. Accordingly, the alignment of the vendor device with respect to the segment can be maintained for a long time, and the location bush can be used for a long time without replacement.

Therefore, while using the location bush for a long time, it is possible to maintain the alignment state of the vendor in the best condition, and to improve the process efficiency, casting quality and productivity of the casting process.

1 is a schematic diagram of a bender device and a casting device according to an embodiment of the present invention.
2 is a schematic diagram of a bender device and a segment according to an embodiment of the present invention.
3 is a rear view of a bender device according to an embodiment of the present invention.
4 is a cross-sectional view of a bender device according to an embodiment of the present invention.
5 is a schematic diagram showing a location bush portion of a bender device according to an embodiment of the present invention.
FIG. 6 is a schematic view showing an enlarged region C of FIG. 5.
7 is a schematic diagram showing a driving part of a bender device according to an embodiment of the present invention.
8 is an enlarged schematic diagram of area D of FIG. 7.
9 is an enlarged longitudinal sectional view showing a location bush, a location pin, and a driving part according to an embodiment of the present invention.
10 is an enlarged side view showing a location bush, a location pin, and a driving part according to an embodiment of the present invention.
11 is an operation diagram for explaining an operation method of a bender device according to an embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings, it will be described an embodiment of the present invention; However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms. Only embodiments of the present invention are provided to complete the disclosure of the present invention and to fully inform the scope of the invention to those skilled in the art. BRIEF DESCRIPTION OF THE DRAWINGS The drawings may be exaggerated to illustrate embodiments of the invention, and like reference numerals designate like elements in the drawings.

Bender device (also referred to as a 'bender'), casting device and casting method according to an embodiment of the present invention, even if the positioning device of the bender device is damaged or worn or deformed and deviates from the reference position in a state where the bender device is installed in the casting device By rapidly repositioning it, it proposes a technical feature that can maintain the alignment of the bender device for a long time.

Hereinafter, embodiments of the present invention will be described in detail based on the continuous casting equipment of the steelworks. Of course, the bender apparatus, the casting apparatus, and the casting method according to the embodiment of the present invention can be variously applied to various treatment facilities in various technical fields.

1 is a schematic diagram of a bender device and a casting device according to an embodiment of the present invention. 2 is a schematic diagram of a bender device and a segment according to an embodiment of the present invention. 3 is a rear view of a bender device according to an embodiment of the present invention. 4 is a cross-sectional view of a bender device according to an embodiment of the present invention.

Hereinafter, a casting apparatus according to an embodiment of the present invention will be described with reference to FIGS. 1 to 4.

Casting apparatus according to an embodiment of the present invention, the mold 300 to solidify the object to be processed, placed on the lower side of the mold 300, the vendor 400 for drawing the object to be processed, and the lower side of the vendor 400 It includes a segment 500 disposed in. The vendor 400 includes a position adjuster to restore the position relative to the segment 500.

In addition, the casting apparatus according to an embodiment of the present invention, while replacing the ladle 100, the ladle 100 carrying liquid to-be-processed object such as molten steel, temporarily receives the molten steel from the ladle 100 and temporarily stores therein, It may further include a tundish 200 that continuously supplies the molten steel stored therein to the mold 300.

Bender 400 and segment 500 may form a cooling zone. The cooling table may continuously draw the object to be processed, such as the cast piece S, from the mold 300. The object to be treated can be cooled and formed while passing through the cooling table. The bender 400 may be disposed directly under the mold 300. A plurality of segments 500 may be provided on the cooling table. The segments 500 are arranged on the lower side of the bender 400 and may form a path for drawing the cast piece S.

For convenience of description, the front region (A) and the rear region (B) are divided around the cooling table. That is, the upper right portion of the drawing is divided into the front region (A), and the lower left portion of the drawing is divided into the rear region (B), centering on the cooling zone shown in FIG.

The mold 300 serves to continuously solidify molten steel continuously supplied from the tundish 200 into a workpiece, such as a cast piece S. The object to be treated may be cooled and formed while passing through the bender 400 and the plurality of segments 500.

When the alignment of the vendor 400 and the segment 500 is misaligned, various problems may occur, such as cracks occurring inside the object to be processed and tensile deformation of the object to be processed. The alignment of the vendor 400 and the segment 500 is such that the roller alignment surface P1 of the vendor 400 and the roller alignment surface P2 of the segment 500 are displaced on the boundary surface between the vendor 400 and the segment 500. Means

At this time, the alignment of the bender 400 and the segment 500 is based on the roller alignment surface P2 of the segment 500. For example, the alignment of the bender 400 and the segment 500 is before and after the roller alignment surface P1 of the bender 400 on the boundary between the bender 400 and the segment 500 from the roller alignment surface P2 of the segment 500. It means the degree of deviation in the direction (Y).

Hereinafter, the alignment of the vendor 400 and the segment 500 will be briefly referred to as alignment. Alignment can be represented by a physical quantity having a dimension of length. The state in which the alignment is outside the range of the reference value is called an alignment misalignment state, and the opposite state is called an alignment maintenance state.

The roller alignment surface P1 of the bender 400 is a virtual surface that extends in a direction in which the rollers 430 are arranged in contact with the rollers on the rear region B side of the rollers 430 provided in the bender 400. You can. The roller alignment surface P1 of the bender 400 may be partially curved. The roller alignment surface P2 of the segment 500 may be a virtual surface extending in a direction in which the rollers are arranged while contacting the rollers on the rear region B side of the rollers provided in the segments 500. The roller alignment surface P2 of the segment 500 may be partially curved.

The position adjuster may restore the alignment of the vendor 400 relative to the segment 500 to restore alignment. Alignment recovery means that the value is adjusted so that the alignment falls within a range of preset reference values. Here, the range of the reference value can be determined as the alignment range when the casting process is normally performed and the object to be treated can be controlled to a desired quality. This number may vary depending on the steel type of each casting process and the process conditions.

The position adjuster axially rotates the positioning unit 440 and the positioning unit 440 that adjust the position of the frames 420 of the bender 400 to the correct position with respect to the segment 500 by using axial rotation. The driving unit 490 may be included. The axial rotation may be axial rotation about the lateral direction (X). The positioning unit 440 and the driving unit 490 may be provided in a plurality of position adjusters. At this time, the positioning units 440 and the driving units 490 may be symmetrical to the left and right in the lateral direction X with the frames 420 as the center.

For convenience of description, the positioning unit 440 and the driving unit 490 will be described based on the right side of the frames 420. The following description may be equally applied to the positioning unit 440 and the driving unit 490 located on the left side of the frames 420.

The frames 420 may include one frame 421 and another frame 422. One frame 421 and the other frame 422 may be interconnected via a rod part (not shown), and maintain a gap therebetween. The rod portion may be referred to as a tie rod.

The positioning unit 440 may be mounted on one side surface of the one frame 421 in the lateral direction (X). At this time, the positioning unit 440 may have one end protruding outside the one frame 421. Here, the outer side means the outer side with respect to the lateral direction (X). The lateral direction X may be, for example, a width direction or a left and right direction.

The bender 400 may include a base 450. At this time, a plurality of base parts 450 may be provided in the bender 400. The base parts 450 may be symmetrically left and right in the lateral direction X around the frames 420.

For convenience of description, the base 450 will be described with reference to the right side of the frames 420. The following description can also be applied to the base 450 located on the left side of the frames 420.

The base portion 450 may be installed outside the one frame 421. One end portion of the positioning portion 440 may be constrained by both sides by the base portion 450. Both sides mean both sides in the front-rear direction (Y). The front-rear direction Y and the lateral direction X cross each other, and the front-rear direction Y may be, for example, a thickness direction. The position determining unit 440 may be positioned by the base 450, whereby the positions of the front and rear directions Y of the frames 420 may be determined.

The object to be processed passes through the path and can press the frames 420 in the front-rear direction (Y). Accordingly, the positioning unit 440 may be pressed in the front-rear direction Y by the frames 420. Accordingly, the positioning portion 440 is in close contact with the base portion 450, a pressing surface, for example, a damaged surface may occur. When one end of the positioning unit 440 is damaged by a pressing phenomenon, the position of the front-rear direction Y of the center of one end of the positioning unit 440 may be different from the initial position. Accordingly, the positions of the front and rear directions Y of the frames 420 may be changed, and the alignment may be distorted.

The other end of the positioning unit 440 may protrude inside the frame 421. The other end of the positioning unit 440 may be connected to the driving unit 490. The driving unit 490 may rotate the positioning unit 440 so that the damaged surface formed at one end of the positioning unit 440 and the base unit 450 do not contact each other. The driving unit 490 may include a plurality of gears and a driver so that the positioning unit 440 can be rotated. At this time, the plurality of gears may include a ratchet gear to prevent reverse rotation of the positioning unit 440.

One end of the positioning unit 440 may be stably contacted by both sides of the base unit 450 by using axial rotation. That is, the positioning unit 440 may adjust the distance between the center of one end portion and the front and rear direction Y of the base portion 450 by using the axial rotation. Accordingly, the position of the front-rear direction Y of one end of the positioning unit 440 may be restored to the initial position.

Accordingly, the position of the front and rear direction Y of the frames 420 may be restored to an initial position, for example, a fixed position. More specifically, the one frame 421 may restore the position of the one frame 421 to the correct position by using the axis rotation of the positioning unit 440. That is, even if the alignment is distorted, the alignment can be quickly restored by using the axis rotation of the positioning unit 440. At this time, the other frame 422 may be linked to the movement of one frame 421 through the rod unit. Interlocking means that one frame 421 and the other frame 422 move the same.

The vendor 400 operates the driving unit 490 in response to the position change of the sensing unit 480 and the positioning unit 440 for detecting a position change in the front-rear direction Y of one end of the positioning unit 440. A control unit (not shown) and a display unit (not shown) for displaying the detection results of the sensing unit 480 in a form that is easy for a user to recognize may be further included.

The sensing unit 480 may detect in real time that a damaged surface is generated at one end of the positioning unit 440. The control unit may control the operation of the driving unit 490 as soon as a damaged surface is generated at one end of the positioning unit 440 to axially rotate one end of the positioning unit 440. The display unit may inform the user by displaying the damaged surface at one end of the positioning unit 440 in various ways.

For convenience of description, hereinafter, the vendor 400 is referred to as a vendor device 400.

5 is a schematic diagram showing a location bush portion of a bender device according to an embodiment of the present invention. FIG. 6 is a schematic view showing an enlarged region C of FIG. 5. 7 is a schematic diagram showing a driving part of a bender device according to an embodiment of the present invention. 8 is an enlarged schematic diagram of area D of FIG. 7.

9 is an enlarged longitudinal sectional view showing a location bush, a location pin, and a driving part according to an embodiment of the present invention. 10 is an enlarged side view showing a location bush, a location pin, and a driving part according to an embodiment of the present invention.

Hereinafter, a bender device according to an embodiment of the present invention will be described in detail with reference to FIGS. 1 to 10. The bender apparatus 400 according to an embodiment of the present invention includes frames 420 installed on both sides of a path in which the workpiece S is moved, and rollers 430 supported on the frames 420. , One of the frames 420 is connected to one end of the positioning unit 440, the positioning unit 440, which is installed laterally (X) in one frame 421, and one end of the positioning unit 440 It includes a base portion 450 that restrains both sides, and a driving portion 490 that is connected to the other end of the positioning portion 440 and is formed to rotate the positioning portion 440 axially.

In addition, the bender device 400 detects the distance between one end of the support 410 and the positioning part 440 and the base part 450 installed in the front-rear direction Y in the upper side of the frames 420. A part 480, a support part 460 installed in the lateral direction (X) on the upper part of the one frame 421, a seating part 470 installed on the outside of one frame 421, on which the support part 460 is seated, A load unit (not shown) connecting the frames 420 and a control unit (not shown) controlling the operation of the driving unit 490 according to the detection result of the detection unit 480 and a detection result of the detection unit 480 are displayed. A display unit (not shown) may be further included.

The positioning unit 440, the base unit 450, the driving unit 490, the sensing unit 480, the support unit 460, and the seating unit 470 may be provided in a plurality of bender devices 400. They may be symmetrical to the left and right respectively in the lateral direction X around the frames 420.

For convenience of description, based on the right side of the frames 420, the positioning unit 440, the base 450, the driving unit 490, the sensing unit 480, the support 460 and the seating unit 470 To explain. The following description is equally applied to the positioning unit 440, the base 450, the driving unit 490, the sensing unit 480, the support unit 460, and the seating unit 470 located on the left side of the frames 420. You can.

The path through which the object is processed may be a path for drawing the object.

The support 410 is positioned between the mold 300 and the frames 420 and can support the frames 420. The support 410 is installed in the front-rear direction Y, and a passage through which the object is to be passed may be provided in the center thereof. Frames 420 may be mounted under the support 410.

The frames 420 are the main body of the bender device 400, and are disposed below the mold 300, and the center portion may be aligned in the vertical direction Z to the mold 300. Here, the vertical direction Z may be, for example, a height direction or a length direction. The frames 420 may draw the object to the lower side of the mold 300 using the rollers 430, and bend the object to a predetermined curvature. Frames 420 may be installed on both sides of the path to be processed, and may be interconnected via a rod (not shown). Frames 420 may support rollers 430 for moving the object.

The frames 420 may include one frame 421 on the rear region B side and another frame 422 on the front region A side. One frame 421 may include outer frames 421a spaced apart from each other in the lateral direction X and inner frames 421b connecting the outer frames 421a.

The outer frames 421a may extend in the vertical direction Z. The inner frame 421b may have a lattice shape. The inner frame 421b may connect the facing surfaces of the outer frames 421a to each other in the lateral direction (X). The front surface of the inner frame 421b may face a path (hereinafter referred to as a “path”) through which the object is moved. Rollers on the rear region B side of the rollers 430 may be mounted on the front surface of the inner frame 421b.

The other frame 422 may include outer frames 422a spaced apart from each other in the lateral direction X and inner frames 422b connecting the outer frames 422a.

The outer frames 422a may extend in the vertical direction Z. The inner frame 422b may have a lattice shape, and the outer frames 422a may be connected in the lateral direction (X). The rear side of the inner frame 422b may face the path. Rollers on the front region A side of the rollers 430 may be mounted on the rear side of the inner frame 422b.

The object to be treated is drawn into the path between one frame 421 and the other frame 422, contacts the rollers 430, and can be bent to a predetermined curvature by the rollers 430 while being drawn downward. have.

Rollers 430 may be disposed between the frames 420 and the path. The rollers 430 may be arranged in a direction in which the object to be processed moves. The rollers 430 may extend in the lateral direction X, respectively, and may be supported on opposite surfaces of the frames 420, respectively.

Rod parts (not shown) may be provided on upper and lower portions of the frames 420, respectively. The rod portion may be disposed outside the path of the object to be moved, and may be mounted on the frames 420. The rod portion can be adjusted in length in the front-rear direction (Y), and the length of the frames 420 can be adjusted by adjusting the length. The rod part may maintain the spacing of the frames 420. Also, the load unit may transmit the movement of one frame 421 to the other frame 422. The rod portion is also referred to as a tie rod, for example, and may be composed of hydraulic equipment.

The support 460 may be mounted in the lateral direction (X) on the top of one frame (421). The support part 460 may partially protrude from one side surface of the one frame 421 to the outside. The protrusion of the support 460 may be seated on the seat 470. The support part 460 may support the upper part of one frame 421. The seating portion 470 may constrain the movement of the front-rear direction Y of the upper portion of the one frame 421 through the support portion 460. The support part 460 may include a support pin 461 and a support bush 462.

The support pin 461 may be mounted on one side of the frame 421. A portion of the support pin 461 may protrude outside the one frame 421. The support bush 462 may be mounted on a protruding portion of the support pin 461. The support bush 462 may be supported on the seating portion 470. The seating portion 470 can restrain both sides of the supporting portion 460 and can support the supporting portion 460 in the vertical direction (Z).

The seating portion 470 may include a horizontal member 471, a seating member 472 and a vertical member 473. The horizontal member 471 may be installed outside the one frame 421 and may extend in the front-rear direction (Y). The horizontal member 471 may be spaced apart from one frame 421 in the lateral direction (X). The seating member 472 may be disposed to surround the lower surface of the support bush 462. The seating member 472 may have a block shape, and a concave groove may be formed on the upper surface. The lower surface of the support site 462 may be inserted into the concave groove of the upper surface. The vertical member 473 may connect the horizontal member 471 and the seating member 472.

The support 460 may be mounted on another frame 422. In this case, the seating portion 470 may be installed outside the other frame 422.

The positioning unit 440 may be installed under the frame 421 and may be installed in the lateral direction (X). The positioning unit 440 is mounted on one side of the one frame 421 in the lateral direction (X), one end 441a protrudes outside the one frame 421, and the other end 441b is one. The location pin 441 protruding inside the frame 421 and the location bush 442 mounted on one end 441a of the location pin 441 and contacting the base portion 450 on both sides may be included.

The location pin 441 may be mounted through one of the outer frames 421a. The location pin 441 may have one end 441a protruding outside the outer frames 421a, and the other end 441b protruding inside the outer frames 421a. The location pin 441 may be connected to one end 441a and the other end 441b by a connection part 441c. A connector bush 443 may be inserted into the connection part 441c of the location pin 441.

The location bush 442 may be mounted such that the location pin 441 surrounds the outer circumferential surface of one end 441a. The location bush 442 serves to prevent the location pin 441 from directly contacting the base portion 450 and being worn.

The positioning unit 440 may restore the distance between one end of the positioning unit 440 and the base 450 by using axial rotation to an initial interval. For example, if the location bush 442 is damaged by contact with the base portion 450 and a damaged surface such as a pressing surface is generated, the central portion of the location pin 441 is biased toward the damaged surface, and the central portion of the location pin 441 is initially Out of position. At this time, the pressing surface is spaced apart from the base portion 450 by axial rotation, and the undamaged portion of the outer circumferential surface of the location bush 442 is brought into contact with the base portion 450. Accordingly, the central portion of the location pin 441 is restored to the initial position, and the distance between the central portion of the one end of the positioning portion 440 and the base portion 450 can be restored to the initial interval.

Since one frame 421 moves together with the positioning unit 440, the biasing of the positioning unit 440 causes the biasing of the one frame 421, and the restoration of the positioning unit 440 is one frame 421 ). One frame 421 may restore the position of one frame 441 with respect to the reference position by using the axis rotation of the positioning unit 440. The reference position may be the position of one frame 441 in an alignment state.

The base portion 450 is connected to one end portion of the positioning portion 440 and can constrain both sides of one end portion of the positioning portion 440. The base portion 450 may be disposed outside the outer frames 421a.

The base part 450 is installed outside the one frame 421, and horizontal bars 451 facing one end of the positioning part 440 in the vertical direction Z, both sides of one end of the positioning part 440 It may include a connecting bar (453a, 453b) for contacting, and mounting the vertical bars (452a, 452b) to the horizontal bar (451), vertical bars (452a, 452b) supported on the horizontal bar (451).

The horizontal bar 451 is installed outside the outer frames 421a and may extend in the front-rear direction Y. The vertical bars 452a and 452b may be disposed to be inclined at a predetermined angle with respect to the vertical direction Z, and may contact both sides of the location bush 442. A location bush 442 may be positioned between the vertical bars 452a, 452b. The vertical bars 452a and 452b contact both sides of the location bush 442, and through the contact, the movement and position of the location bush 442 in the front-rear direction Y may be constrained.

The driving unit 490 is connected to the other end of the positioning unit 440, and may be formed to rotate the positioning unit 440. At this time, the driving unit 490 may rotate the positioning unit 440 so that the damaged surface formed at one end of the positioning unit 440 and the base unit 450 do not contact each other. The driving unit 490 may be disposed inside the outer frames 421a.

The driving unit 490 may include a plurality of gears and a driver so that the positioning unit 440 can be rotated. Of course, the driving unit 490 may be provided in various ways as long as it is a configuration capable of rotating the positioning unit 440 in addition to the gear and the driver.

The driving unit 490 is disposed inside the one frame 421 and extends in the up and down direction (Y) of the ring gear 491 into which the other end of the positioning unit 440 is inserted, and the ring gear 491 It may include a rack gear 493 to be coupled, and a driver 492 supported on one frame 421 and elevating the rack gear 491.

The ring gear 491 may be inserted into the outer circumferential surface of the other end 441b of the location pin 441. The ring gear 491 may include a ratchet gear, whereby reverse rotation is prevented and can only rotate in a predetermined direction. Accordingly, the outer circumferential surface of the location bush 442 can be sequentially and evenly brought into contact with the base portion 450 in the extending direction thereof.

The rack gear 493 may be geared to the ring gear 491. The rack gear 493 may have pawl-type teeth on the gear surface. Thus, reverse rotation of the ring gear 491 can be prevented. The extended length of the rack gear 493 in the vertical direction Z may be greater than the length of the outer peripheral surface of the ring gear 491. The driver 492 may be supported on the inner surface of the outer frame 421a, and may support the rack gear 493 to be elevated. The actuator 492 includes a hydraulic cylinder, but various configurations such as a linear motor may be used.

When the driver 492 raises the rack gear 493, the rack gear 493 rotates the ring gear 491, whereby the location pin 441 rotates, and the location bush 442 also rotates. have. The damaged surface may be spaced apart from the base portion 450 by rotation of the location bush 442.

The sensing unit 480 may be formed to detect the distance between one end of the positioning unit 440 and the base 450. The configuration of the sensing unit 480 may be various, and the center of one end of the positioning unit 440, for example, the center of one end 441a of the location pin 441 and the vertical bars 452a, 452b of the base 445 The gap between them can be detected. The sensing unit 480 may be supported by the base 450 and may be connected to the center of one end 441a of the location pin 441.

The sensing unit 480 is rotatably connected to or in contact with the sensing pin 481 mounted on the center of one end 441a of the location pin 441 in the lateral direction X, and connected to the sensing pin 481, and the base unit ( It may include a distance sensor 482 mounted to at least one of the vertical bars (452a, 452b) of 450. The distance sensor 482 may be formed to be stretchable, and may sense a distance between the center of one end 441a of the location pin 441 and the vertical bars 452a and 452b of the base 445 through the stretch. have.

The control unit (not shown) may be connected to the sensing unit 480 and the driving unit 490. The control unit may control the operation of the driving unit 490 according to the detection result of the sensing unit 480. For example, the control unit may control the operation of the driving unit 490 so that the positioning unit 440 rotates the shaft at a predetermined angle when the interval detected by the sensing unit 480 is outside a preset reference interval range.

Here, the range of the preset reference interval may be determined as a range of the distance between the center of one end 441a of the location pin 441 and the vertical bars 452a and 452b of the base 445 when the alignment is maintained. have. The predetermined angle is, for example, an angle determined by dividing 180 ° by a predetermined number of times, and may be determined by comparing the area of the damaged surface with the size of the outer circumferential surface of the location bush 442. For example, the predetermined angle may be 30 °. Of course, its value can vary. When the predetermined angle is 30 °, the location bush 442 can be continuously used without replacement up to six rotations in total, and thereafter, it can be replaced with a new one.

The display unit (not shown) may be various display devices, and may be connected to the detection unit 480 to show the detection result to the user in various ways. At this time, the display unit may be connected to the control unit, and thus, the number of operation and the remaining number of times of the driving unit 490 may also be displayed.

11 is an operation diagram for explaining an operation method of a bender device according to an embodiment of the present invention. FIG. 11 (a) is a view showing a state in which the positioning unit is in the initial position, and FIG. 11 (b) is a view showing a state in which the positioning unit is deviated from the initial position due to damage surface. Also, FIG. 11 (c) is a view showing a state in which the positioning portion is axially rotated and restored to an initial position.

Hereinafter, a casting method according to an embodiment of the present invention will be described with reference to FIGS. 1 to 11.

The casting method according to an embodiment of the present invention includes a process of solidifying an object to be processed in a mold, a process of drawing an object to be processed in a mold using a bender device, and restoring the position of the bender device. The restoration process is performed before the drawing process, during the drawing process, or after the drawing process.

First, while supplying a liquid to-be-processed object such as molten steel to the mold 300, the molten steel of the liquid in the mold 300 is solidified into a to-be-processed object such as a cast piece S. Thereafter, the object to be processed is drawn from the mold 300 using the bender device 400.

While repeating the above-described process, a process of restoring the position of the bender device 400 is performed at a time when the position of the bender device 400 needs to be restored.

This process is a process of axially rotating the positioning unit 440 connected to one frame 421 among the frames 420 of the bender apparatus 400, and the position of the frames 420 is set to an initial position by axis rotation. And restoring.

More specifically, the process of axially rotating the positioning unit 440 so that the damaged surface E of one end of the positioning unit 440 does not contact the base 450 connected to one end of the positioning unit 440, It may include a process of moving the positioning unit 440 to a fixed position by axial rotation, and restoring the position of the frames 420 to the initial position by the movement of the positioning unit 440.

Referring to (a) of FIG. 11, while the casting process is being performed, the distance between one end and the base of the positioning unit 440 maintains the reference interval L1 until the time before the location bush 442 is damaged. . The reference interval L1 may be given as a predetermined range value.

Then, referring to (b) of FIG. 11, when the location bush 442 is damaged, the gap between one end and the base of the positioning portion 440 is reduced by the thickness of the damage surface E. If the interval at this time is called the damage interval L2, the damage interval L2 is smaller than the reference interval L1. Of course, the damage interval L2 may be larger than the reference interval L1 depending on the measurement position of the interval and the damage direction. Thereafter, referring to FIG. 11C, the positioning unit 440 is axially rotated at a predetermined angle θ to restore the location of the location pin 441.

Through this process, while the position of the positioning unit 440 is restored to the initial position, the position of one frame 421 may also be restored to the initial position, and thus, the alignment may be restored.

On the other hand, prior to the restoration process, a process of sensing the distance between one end of the positioning unit 440 and the base 450 is performed. This process can be performed in real time. Then, according to the detection result of the interval, if the detected interval is smaller than the preset reference interval, the positioning unit 440 is rotated at a predetermined angle.

According to the above, in the embodiment of the present invention, even if the location bush 442 is not replaced, the location pin 441 so that the damaged surface E of the location bush 442 does not contact the vertical bars 452a, 452b. By rotating the shaft, the location pin 441 and the location bush 442 can be quickly repositioned to a reference position. Accordingly, the alignment can be maintained for a long time, and the location bush 442 can be used for a long time without replacement.

The above embodiment of the present invention is for the description of the present invention, not for the limitation of the present invention. It is to be noted that the configurations and manners disclosed in the above embodiments of the present invention will be modified in various forms by combining or crossing each other, and such modifications can also be regarded as the scope of the present invention. That is, the present invention will be implemented in various forms that are different from the scope of the claims and equivalent technical idea, and various embodiments are possible within the scope of the technical idea of the present invention for those skilled in the art to which the present invention corresponds. You will understand.

100: Ladle 200: Tundish
300: mold 400: bender device
500: segment 421: day frame
440: positioning unit 450: base
480: sensing unit 490: driving unit

Claims (20)

Frames are installed on both sides of the path to be processed;
Rollers supported on the frames;
A positioning unit installed laterally on one of the frames;
A base portion connected to one end portion of the positioning portion and constraining both sides of the one end portion of the positioning portion; And
And a driving unit connected to the other end of the positioning unit and formed to rotate the positioning unit. The method according to claim 1,
A sensing unit detecting a gap between the one end portion and the base portion of the positioning unit;
A control unit that controls the operation of the driving unit according to the detection result of the sensing unit; And
The display unit for displaying the detection result of the detection unit; including a vendor device. The method according to claim 1,
The driving unit is axially rotated the positioning unit so that the damaged surface formed at the one end of the positioning unit and the base unit do not contact each other,
The positioning unit restores the distance between the one end and the base of the positioning unit to an initial interval by using axial rotation,
The one frame is a bender device that restores the position of the one frame relative to the reference position by using the axis rotation of the positioning unit. The method according to claim 3,
The frames are interconnected via a rod portion,
The rod unit maintains the spacing of the frames, and transmits the movement of one frame to another frame. The method according to claim 1,
The one frame has an outer frame spaced apart from each other in the lateral direction and an inner frame connecting the outer frames,
The positioning portion penetrates any one of the outer frame,
The base portion is disposed outside the outer frame,
The driving unit is a bender device disposed inside the outer frame. The method according to claim 1,
The positioning unit,
A location pin mounted laterally on the one frame, one end protruding outside the one frame, and the other end protruding inside the one frame; And
And a location bush mounted on the one end of the location pin and having both sides contacting the base. The method according to claim 1,
The base portion,
A horizontal bar installed outside the frame and facing the one end of the positioning unit;
Bender device comprising; vertical bars in contact with both sides of the one end of the positioning unit, supported on the horizontal bar. The method according to claim 1,
The driving unit is a bender device having a plurality of gears and a driver so that the positioning unit can be axially rotated. The method according to claim 1,
The driving unit,
A ring gear disposed inside the one frame and into which the other end of the positioning portion is inserted;
A rack gear coupled to the ring gear; And
Bender device including; is supported on the one frame, a driver for elevating the rack gear. The method according to claim 2,
The sensing portion is supported on the base portion, and detects a gap between the center portion of the one end portion of the positioning portion and the base portion,
The control unit controls the operation of the driving unit so that the positioning unit is axially rotated at a predetermined angle when the interval is outside a preset reference interval range. A mold that solidifies the object to be treated;
A bender disposed under the mold and drawing the object; And
Segment disposed on the lower side of the bender; includes,
The vendor includes a position adjuster to restore the position for the segment,
The position adjuster is mounted sideways to one of the frames of the vendor, one end protrudes outside the one frame, and adjusts the position of the frames to the correct position with respect to the segment using axial rotation. Positioning unit; And a driving unit for axially rotating the positioning unit.
The one end portion is constrained by both sides by the base portion installed on the outside of the one frame,
The other end of the positioning unit protrudes inside the one frame, and a casting device connected to the driving unit. delete delete The method according to claim 11,
The one frame maintains the distance from the other frame through the rod portion,
The driving unit is axially rotated the positioning unit so that the damaged surface formed at the one end of the positioning unit and the base unit do not contact each other,
The one end of the positioning unit adjusts the distance between the center of the one end and the base by using axial rotation,
The one frame is a casting device for restoring the position of the one frame to the correct position by using the axis rotation of the positioning unit. The method according to claim 11,
The vendor,
A sensing unit sensing a change in the position of the one end of the positioning unit;
A control unit controlling an operation of the driving unit in response to the position change; And
Casting device comprising a; display unit for displaying the detection result of the detection unit. The method according to claim 14,
The driving unit is provided with a plurality of gears and a driver to rotate the positioning unit axially,
The plurality of gears casting device including a ratchet gear to prevent the rotation of the positioning portion. The process of solidifying the object to be processed in the mold;
Passing the object through the frames of the bender device, and drawing the object from the mold; And
It includes; before the drawing process, during the drawing process or after the drawing process, restoring the position of the frames; includes,
The restoration process,
A process of axially rotating the positioning unit so that a base portion connected to one end portion of the positioning portion installed in one of the frames and constraining both sides of the one end portion does not contact the damaged surface of the one end portion;
A process of moving the positioning unit to a fixed position by rotating the shaft;
And restoring the position of the frames to the initial position by the movement. delete delete The method according to claim 17,
Before the process of restoring, detecting the distance between the one end and the base; includes,
Optionally performing a process of rotating the positioning unit according to the detection result of the gap,
The process of axially rotating the positioning unit is a casting method of rotating the positioning unit at a predetermined angle when the interval is smaller than a preset reference interval.

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