WO2019031849A1 - 롤러 조립체, 주조 장치 및 이의 롤러 분리 방법 - Google Patents
롤러 조립체, 주조 장치 및 이의 롤러 분리 방법 Download PDFInfo
- Publication number
- WO2019031849A1 WO2019031849A1 PCT/KR2018/009039 KR2018009039W WO2019031849A1 WO 2019031849 A1 WO2019031849 A1 WO 2019031849A1 KR 2018009039 W KR2018009039 W KR 2018009039W WO 2019031849 A1 WO2019031849 A1 WO 2019031849A1
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- WIPO (PCT)
- Prior art keywords
- roller
- casting
- movement path
- fixed shaft
- plunger
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
- B22D11/128—Accessories for subsequent treating or working cast stock in situ for removing
- B22D11/1287—Rolls; Lubricating, cooling or heating rolls while in use
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
- B22D11/128—Accessories for subsequent treating or working cast stock in situ for removing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
- B22D11/128—Accessories for subsequent treating or working cast stock in situ for removing
- B22D11/1282—Vertical casting and curving the cast stock to the horizontal
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
- B22D11/128—Accessories for subsequent treating or working cast stock in situ for removing
- B22D11/1285—Segment changing devices for supporting or guiding frames
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/16—Controlling or regulating processes or operations
- B22D11/20—Controlling or regulating processes or operations for removing cast stock
- B22D11/208—Controlling or regulating processes or operations for removing cast stock for aligning the guide rolls
Definitions
- the present invention relates to a roller assembly, a casting apparatus and a roller separating method thereof, and more particularly to a roller assembly capable of retracting a roller in a moving path of a processed product, And a method of separating the rollers.
- the continuous casting facility is a facility for producing cast steel using molten steel.
- the casting facility is a casting mold that receives the molten steel of the turn-dish and the tundish to store the molten steel, .
- the segments are continuously arranged on the lower side of the mold along the movement path of the casting.
- Conventional segments include a plurality of guide rolls continuously arranged on the lower side of the casting mold to guide and feed the casting rolls, a plurality of roller assemblies rotatably supporting both end portions of the guide rolls, A plurality of tie rods spaced apart from each other and spaced from each other and connecting the upper frame and the lower frame to each other to provide a pressing force to the cast steel, And a hydraulic cylinder capable of adjusting the distance between the upper frame and the lower frame facing each other and facing each other.
- Patent Document 1 KR10-2017-0065963 A
- the present invention provides a roller assembly capable of retracting the rollers in the path of movement of the processing object.
- the present invention provides a casting apparatus capable of separating a roller fused to a cast on a moving path in an emergency.
- the present invention provides a roller separating method capable of separating a roller fused to a cast on a moving path in an emergency.
- a roller assembly is a roller assembly capable of retracting a roller in a movement path of a processed product, comprising: a support rotatably supporting the roller disposed in the movement path; A fixed shaft mounted on a back surface of the support and at least a part of which can be expanded and contracted; A body mounted to surround the fixed shaft at a back side of the support; And a plunger mounted to connect the body and the fixed shaft so that at least a part of the plunger can move back and forth with respect to the movement path.
- the plunger may be configured to at least partially retract using hydraulic pressure and retract the fixed shaft from the movement path.
- the plunger may be mounted through the back surface of the body and connected to the rear end of the fixed shaft.
- the plunger has a hollow outer tube having a front end mounted on a back surface of the body, a step formed on an inner circumferential surface thereof, an inner diameter of a rear end thereof being larger than an inner diameter of a front end thereof,
- An inner cylinder mounted through the outer cylinder and having a step formed on an outer circumferential surface thereof and having an outer circumferential surface in contact with an inner circumferential surface of the outer cylinder;
- a connecting shaft protruding from a front end of the inner cylinder and connected to a rear end of the fixed shaft through a rear surface of the body; And an inlet through which the fluid is injected into the oil pressure space formed by the step and the step so as to form an oil pressure.
- the plunger may further include an injection port valve mounted on the injection port and opened in an intermittent manner.
- a casting apparatus is a casting apparatus for casting a cast steel, the casting apparatus comprising a plurality of segments successively arranged on the lower side of the casting mold so as to guide movement of the casting casting out of the casting mold, A plurality of rollers spaced apart from each other across the movement path of the casting and arranged consecutively along the movement path; And a plurality of roller assemblies mounted on the plurality of rollers, the plurality of roller assemblies being formed such that at least a portion thereof can be moved back and forth with respect to the movement path.
- the segment includes a first frame and a second frame spaced apart from each other across the travel path and to which a plurality of roller assemblies are respectively supported and wherein the roller assembly is at least partially retracted using hydraulic pressure So that the roller can be retracted from the movement path.
- the roller assembly includes: a support rotatably supporting the roller; A fixed shaft mounted on a back surface of the support and at least a part of which can be expanded and contracted; A body mounted to surround the fixed shaft at a back side of the support; And a plunger that is installed to penetrate the back surface of the body and is connected to a rear end of the fixed shaft and at least a part of which can be moved back and forth with respect to the movement path by using hydraulic pressure.
- a roller separating method is a roller separating method for separating a roller from a cast strip on a moving path, comprising: a process of drawing a strip from a mold; A step of guiding the movement of the casting machine, which is pulled out from the casting mold, by using a plurality of segments successively arranged along the movement path; A plurality of roller assemblies, which are mounted on a plurality of rollers provided on the segment and are formed so that at least a part of the rollers can be moved back and forth with respect to the movement path, And separating the supported rollers from the slab.
- the step of separating the roller from the casting includes the step of applying a hydraulic pressure to the inside of the roller assembly to retract a part of the roller assembly from the movement path; And withdrawing a roller connected to a part of the roller assembly from the movement path.
- the step of separating the roller from the cast steel may further include the step of applying the hydraulic pressure to the inside of the roller assembly in an intermittent manner.
- the embodiment of the present invention it is possible to easily retract a plurality of successively arranged rollers along the movement path of the processing object in the movement path of the processing object, by using the plunger structure provided so as to easily retreat only a part of the apparatus.
- the roller assembly of the segment when applied to a continuous casting facility, is constituted by a roller assembly to which a plunger structure is applied, and when the rollers are fused to the cast steel by leaking molten steel, The hydraulic pressure can be used to retract the fixed shaft of the roller assembly from the movement path of the casting roll and to easily separate the rollers supported on the fixed shaft from the casting.
- the hydraulic pressure can be applied to the plunger of the roller assembly in an emergency such as the leakage of molten steel or stagnation of the cast steel, so that the roller can be separated from the cast steel by forcibly separating the cast steel. , The time and manpower required for equipment restoration can be greatly reduced.
- FIG. 1 is a schematic view of a casting apparatus according to an embodiment of the present invention.
- FIG. 2 is a schematic diagram of a segment according to an embodiment of the present invention.
- FIG 3 is a schematic view of a roller assembly according to an embodiment of the present invention.
- FIG. 4 is an operational view of a roller assembly according to an embodiment of the present invention.
- FIG. 1 is a schematic view of a casting apparatus according to an embodiment of the present invention.
- a casting apparatus is a casting apparatus for casting a processed product such as a casting product 1 by using a casting mold 30 and includes a casting mold 30 for casting the casting product 1, 30, which are arranged in series.
- the segments 500 can be continuously arranged in a predetermined direction so as to form the movement path 40 of the cast piece 1 on the lower side of the mold 30. [ That is, each of the segments 500 can be provided on the lower side of the mold 30 to form the movement path 40 of the cast piece 1.
- the shape and shape of the movement path 40 may vary.
- the movement path 40 may be curved or vertically curved, or it may be vertical.
- the moving path 40 of the slab 1 may be referred to as a cooling line, and the plurality of segments 500 may be collectively referred to as a cooling band.
- Each segment 500 may include a plurality of rollers and a coolant nozzle (not shown).
- Each of the segments 500 guides the cast steel 1 pulled out of the casting mold 30 by using a plurality of rollers and presses and forms the cast steel 1 to form a casting roll 1 with a plurality of coolant nozzles,
- the casting 1 may be coagulated and cooled by injecting cooling water.
- the casting apparatus includes a ladle 10 for transporting molten steel such as molten steel, a turn-dish 20 for receiving and temporarily storing molten steel from the ladle 10, molten steel supplied from the turn- And a mold (30) for solidifying in the form of a slab.
- the configuration and the manner of the ladle 10, the turn-dish 20, and the mold 30 described above may be various, and there is no particular limitation in the embodiment of the present invention. In order not to obscure the gist of the present invention, a detailed description thereof will be omitted.
- FIG. 2 is a schematic diagram of a segment according to an embodiment of the present invention. 2, a segment according to an embodiment of the present invention will be described.
- the segment 500 includes a plurality of rollers 510 spaced apart from each other with the movement path 40 of the cast piece 1 interposed therebetween and continuously arranged along the movement path, Includes a plurality of roller assemblies (520) mounted on rollers (510), at least a portion of which are configured to be movable back and forth with respect to the travel path (40).
- the segments 500 also include a first frame 530a and a second frame 530b that are spaced apart from each other across the travel path 40 and are respectively supported by a plurality of roller assemblies 520 .
- the plurality of rollers 510 can be continuously arranged in a direction in which the movement path extends in a position spaced apart from each other in the front-rear direction.
- the forward and backward directions may be a direction in which the first frame 530a and the second frame 530b are separated from each other as viewed in FIG.
- the plurality of rollers 510 may be successively arranged in a direction in which the movement path extends in a position spaced apart from each other in the vertical direction.
- the first frame 530a and the second frame 530b may be disposed apart from each other in the vertical direction. That is, the plurality of rollers 510, the first frame 530a, and the second frame 530b may be arranged in various ways according to the direction in which the movement path extends.
- the plurality of rollers 510 may extend in the left-right direction.
- the left-right direction may be a direction intersecting both the front-rear direction and the vertical direction as described above, such as a direction crossing the movement path.
- the first frame 530a and the second frame 530b are the bodies of the segments 500 and can be spaced apart from each other in the anteroposterior direction as shown in Fig.
- the first frame 530a and the second frame 530b may be spaced apart from each other in the vertical direction.
- the first frame 530a and the second frame 530b can be fixedly installed at respective positions, and the intervals between the first frame 530a and the second frame 530b can be fixed at predetermined intervals.
- a plurality of rollers 510 are disposed on the respective opposing surfaces of the first frame 530a and the second frame 530b and the cast strips are drawn between the first frame 530a and the second frame 530b to form a plurality Can be moved while being supported by the dog rollers (510).
- the plurality of rollers 510 may be installed so as to be rotatable around an axis in the left-right direction (not shown). To this end, a plurality of rollers 510 are mounted on both ends of the roller assemblies 520, Respectively. The plurality of roller assemblies 520 can support the respective rollers 510 so as to be rotatable in the left-right direction.
- the plurality of roller assemblies 520 are separated from each other in forward and backward directions by a plurality of rollers 510 facing each other in the front-rear direction and spaced apart from each other by the rollers 510 on the first frame 530a side of the plurality of rollers 510 510 to the first frame 530a and to connect the rollers 510 on the second frame 530b side to the second frame 530b respectively .
- the segment 500 having the above-described structure may be referred to as a fixed roll gap type segment.
- a segment (not shown) according to a comparative example is formed by connecting, for example, a first frame and a second frame to each other by a tie- And the gap between the frame and the second frame is adjusted.
- the segment according to the comparative example is referred to as a segment having a hydraulic cylinder type roll gap adjustment device or a variable roll gap type segment, for example.
- the segment 500 according to the embodiment of the present invention has an advantage that it is easier to inspect, maintain, and repair facilities than the segment according to the comparative example.
- the segment according to the comparative example is difficult to be operated and handled by a tie rod and a hydraulic cylinder which are vulnerable to breakage in a high temperature and high humidity environment of the casting apparatus.
- the segment 500 according to the embodiment of the present invention, And the second frame 530b are fixed at predetermined positions, the operation and handling are relatively easy.
- the roller 510 may be fused to the cast steel in an emergency situation such as leakage of molten steel or stagnation of the cast steel.
- the roller 510 is rolled from the cast steel using the roller assembly 520 according to the embodiment of the present invention. It can be forcibly separated and separated.
- hydraulic pressure is applied to the inside of the plunger 524 of the roller assembly 520 to retract the fixed shaft 522 of the roller assembly 520 to connect the roller 510). Therefore, the separation of the roller 510 and the cast steel can be easily performed,
- the segment 500 according to the embodiment of the present invention is a fixed roll gap type segment having a fixed gap between the first frame 530a and the second frame 530b.
- the segment 500 has a rigid structure,
- the casting apparatus can be easily separated from the casting apparatus for the restoration of the casting apparatus.
- the roller assembly 520 can be used to easily separate the casting and the rollers without damaging the entire apparatus during an emergency.
- FIG. 3 is a schematic view of a roller assembly according to an embodiment of the present invention
- FIG. 4 is an operational view of a roller assembly according to an embodiment of the present invention.
- 4 (a) is an operation diagram of a roller assembly showing a state in which a roller on a moving path is supported during normal operation
- Fig. 4 (b) is a view showing a roller assembly retracting the roller
- Fig. 3 is an operational view of the roller assembly shown in Fig.
- the roller assembly 520 is used not only as a support and retraction device for the rollers in the segment 500 of the casting apparatus but also various kinds of rollers It can be used as a support and retraction device for the rollers.
- the roller assembly 520 according to the embodiment of the present invention is a roller assembly 520 capable of retracting the roller 510 disposed in the movement path of the processing object, for example, from the movement path of the casting,
- a fixed shaft 522 which is mounted on the back surface of the supporting body 521 and at least a part of which can be expanded and retracted and is mounted so as to surround the fixing shaft 522 on the back side of the supporting body 521
- the plunger 524 is formed so that at least a part of the plunger 524 can move forward and backward with respect to the movement path of the casting by using the hydraulic pressure.
- the plunger 524 moves the fixing shaft 522 backward, It can be retracted from the path.
- the roller 510 can be forcedly separated from the cast steel, so that subsequent maintenance and restoration can be facilitated.
- the mounting direction and the extending direction of the respective components of the roller assembly 520 may be variously changed in the extending direction of the movement path and the roller arranging direction.
- the support body 521 can support the roller 510 disposed in the movement path of the casting shaft in a rotatable manner.
- the support body 521 may be formed in various shapes in which the end portions of the rollers 510 can be easily mounted and supported.
- the support body 521 is formed in the shape of a disk having a smaller diameter than that of the roller 510 on one side facing the front, facing the end portion of the roller 510 in the left and right direction, And can be opposed to each other in the front-rear direction.
- the support body 521 may have a roller 510 mounted on the center of one side and a fixing shaft 522 mounted on the back side of the other side.
- the fixed shaft 522 can be mounted to the back surface of the support body 521 in the front-rear direction.
- the fixed shaft 522 may be formed by a plurality of divided or separated shafts coupled to each other.
- the repulsive force due to the iron static pressure of the cast steel can be transmitted to the stationary shaft 522 through the support body 521 in the form of axial force.
- the fixed shaft 522 may be formed so that at least a part of the fixed shaft 522 can expand and contract in the longitudinal direction so as to receive and dissipate the axial force and prevent damage by axial force.
- the fixed shaft 522 includes a first shaft 522a extending in the front-rear direction and mounted on the back surface of the support body 521, a first shaft hole penetrating the back surface of the first shaft 522a and extending in the front-
- a first shaft cover 522b mounted on the back surface of the first shaft 522a and a first shaft cover 522b penetrating in the front and rear direction and one side facing forward are disposed inside the first shaft hole
- a second shaft 552c spaced apart from the inner surface and the other of which faces rearward is mounted through the center of the back surface of the body 523 in the forward and backward directions, a ring-shaped protrusion protruding from one outer peripheral surface of the second shaft 522c,
- a plurality of cup springs 522d, and a plurality of cup springs 522d which are supported on the outer circumferential surface of one side of the second shaft 522c in front of the ring- Like protrusions 522c, and the first shaft holes and the
- the second shaft 522c is mounted on the rear surface of the body 523 to restrain movement in the forward and backward directions.
- the first shaft 522a is supported on the outer circumferential surface of the second shaft 522c and can move back and forth.
- the first shaft hole and the plurality of cup springs 522d can guide and receive the forward and backward movement of the first shaft 522a.
- the fixed shaft 522 can be stretched and contracted in the front-rear direction, receiving and dissipating the axial force, and preventing damage due to the axial force.
- the body 523 extends in the front-rear direction and can be opened to the front and can be mounted so as to surround the fixed shaft 522 on the back side of the support body 521.
- the body 523 may be in the form of a quadrangular pillar, but is not particularly limited to this.
- the body 523 is spaced apart from the rear of the support body 521 and a fixing shaft 522 may be installed inside the body 523.
- the second shaft 522c of the fixed shaft 522 can be mounted on the back surface of the body 523 and supported.
- the fixing shaft 522 is accommodated in the body 523 and the fixing shaft 522 can be supported on the inner surface of the body 523.
- the fixed shaft 522 may be arranged to penetrate the inside of the body 523 in the front-rear direction.
- the outer surface of the body 523 may be mounted on and supported by the first frame 530a or the second frame 530b.
- the front end of the body 523 may be spaced apart from the back surface of the support body 521
- the plunger 524 may be mounted through the back surface of the body 523 and may be connected to the rear end of the fixed shaft 522.
- the plunger 524 can be mounted by connecting the body 523 and the fixed shaft 522.
- the plunger 524 may be formed so that at least a portion of the plunger 524 can be moved forward and backward with respect to the path of the casting, and is formed such that at least a part of the plunger 524 can be retracted using hydraulic pressure to retract the fixed shaft 522 from the casting path .
- the hydraulic pressure can be applied to the fixed shaft 522 in the direction away from the cast steel through the plunger 524 so that the fixed shaft 522 is retracted by a predetermined distance to pull the support body 521 backward, ) Can be separated from the casting while being retreated from the casting travel path. That is, the plunger 524 serves to separate the roller 510 from the billet.
- the plunger 524 has a hollow outer cylinder 524a having a front end attached to the back surface of the body 523 and a step 524e formed on the inner circumferential surface and having an inner diameter at the rear end greater than an inner diameter at the front end,
- An inner cylinder 524b which is mounted through the center of the outer cylinder 524a and has a step 524f formed on the outer circumferential face and has an outer circumferential surface in contact with the inner circumferential surface of the outer cylinder 524a is formed protruding from the front end of the inner cylinder 524b
- a plurality of connecting shafts 524c penetrating the back surface of the body 523 and connected to the rear end of the fixed shaft 522 such as the first shaft cover 522b, the hydraulic pressure generating member 524c formed by the step 524e and the step 524f,
- an injection port 524d which is inserted through the outer cylinder 524a so as to form a hydraulic pressure by injecting fluid into the space 524g.
- the outer cylinder 524a extends in the front-rear direction and can be formed into a hollow cylinder shape.
- the inner cylinder 524b can be mounted movably in the front-rear direction through the center of the outer cylinder 524a.
- the inner cylinder 524b is opened toward the inside and disposed inside the outer cylinder 524a, and the other side of the second shaft 522c can be accommodated therein.
- the outer cylinder 524a and the inner cylinder 524b can be in contact with or close to each other, and the hydraulic space 524g can be formed therebetween.
- an inclined surface may be formed on the step 524f at one side of the inner cylinder 524b in contact with the injection port 524d so as to facilitate injection of the fluid for applying the hydraulic pressure.
- the connecting shaft 524c may be formed in a bolt shape and the front end of the connecting shaft 524c is mounted and fixed to the rear end of the fixing shaft 522.
- the rear end of the connecting shaft 524c is connected to the front end of the inner cylinder 524b, .
- the fixed shaft 522 and the inner cylinder 524b can move together in the same direction through the connecting shaft 524c.
- the injection port valve (not shown) may open the injection port 524d in an intermittent manner to apply the hydraulic pressure stepwise. That is, even if the hydraulic space 524g is one connected space, the hydraulic pressure can be applied step by step, and a proper amount of fluid can be supplied to the hydraulic space 524g in accordance with the roller 510 and the fusion state of the casting have.
- the hydraulic chamber 524g is expanded and the inner cylinder 524b is moved backward so that the connecting shaft 524c is retracted, ).
- the movement of the fixed shaft 522 can be received by the first shaft hole and the plurality of cup springs 522d.
- the roller 510 can also be retracted by the corresponding gap d.
- the hydraulic pressure applied to the hydraulic pressure space 524g for retreating the roller 510 can be sufficiently applied to a portable hydraulic pressure applying device such as a grease gun.
- the roller 510 By the retraction of the roller 510, the roller 510 is forcibly spaced from the casting, and the roller 510 welded to the casting can be separated from the casting. By doing so, the roller 510 and the cast steel can be easily separated from each other without damaging the apparatus in the state where the cast steel and the roller 510 are welded together when the molten steel flows out. Thereafter, the recovery operation of the casting apparatus can be performed easily.
- a roller separating method according to an embodiment of the present invention is a roller separating method for separating a roller from a cast on a moving path.
- the roller separating method includes the steps of drawing a cast from a mold, A plurality of roller assemblies mounted on a plurality of rollers provided on a segment and configured such that at least a part of the roller assemblies can move forward and backward with respect to a moving path of the casting, And withdrawing the rollers supported by the roller assembly from the casting.
- a casting apparatus according to the above-described embodiment of the present invention is provided, and a molten material such as molten steel is injected into the mold 30 to cool the molten material into the casting, and then continuously pulled downward.
- a molten material such as molten steel is injected into the mold 30 to cool the molten material into the casting, and then continuously pulled downward.
- the cast strip 1 is passed between the first frame 530a and the second frame 530b of the segment 500 and the rollers 510 are used to guide the movement of the cast strip. Thereafter, casting is stopped when various emergency situations occur such as leakage of molten steel or stagnation of the casting. At this time, the casting may be in a stopped state or in a moving state.
- a fluid is injected into the plunger 524 of the roller assembly 520 to form a hydraulic pressure, and a portion of the roller assembly 520, e.g., the fixed shaft 522, is retracted.
- the roller 510 supported by the support body 521 can be retracted from the movement path of the casting to be separated from the casting.
- the hydraulic pressure can be applied to the inside of the plunger 524 in an intermittent manner, and work can be efficiently performed by applying the necessary hydraulic pressure.
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Abstract
Description
Claims (11)
- 처리물의 이동 경로에 배치된 롤러를 회전 가능하게 지지하는 지지체;상기 지지체의 배면에 장착되고, 적어도 일부가 신축 가능한 고정축;상기 지지체의 배면측에서 상기 고정축을 감싸도록 장착되는 몸체;상기 몸체와 상기 고정축을 연결하여 장착되고, 적어도 일부가 상기 이동 경로에 대하여 전후진할 수 있도록 형성되는 플런저;를 포함하는 롤러 조립체.
- 청구항 1에 있어서,상기 플런저는 유압을 이용하여 적어도 일부가 후진하며 상기 고정축을 상기 이동 경로로부터 후퇴시킬 수 있도록 형성되는 롤러 조립체.
- 청구항 1에 있어서,상기 플런저는 상기 몸체의 배면을 관통하여 상기 고정축의 후단에 연결되는 롤러 조립체.
- 청구항 1에 있어서,상기 플런저는,전단이 상기 몸체의 배면에 장착되고, 내주면에 단차가 형성되며, 상기 단차를 중심으로 후단의 내경이 전단의 내경보다 큰 중공형의 외통;상기 외통을 관통하여 장착되고, 외주면에 단턱이 형성되며, 외주면이 상기 외통의 내주면에 접촉되는 내통;상기 내통의 전단에서 돌출 형성되고, 상기 몸체의 배면을 관통하여 상기 고정축의 후단에 연결되는 연결축;상기 단차와 단턱에 의해 형성되는 유압 공간에 유체를 주입하여 유압을 형성할 수 있도록 상기 외통을 관통하여 장착되는 주입구;를 포함하는 롤러 조립체.
- 청구항 4에 있어서,상기 플런저는,상기 주입구에 장착되고, 단속 방식으로 개방되는 주입구 밸브;를 더 포함하는 롤러 조립체.
- 주형을 이용하여 주편을 주조하는 주조 장치로서,상기 주형으로부터 인발되는 주편의 이동을 안내하도록 상기 주형의 하측에 연속하여 배열되는 복수개의 세그먼트;를 포함하고,상기 세그먼트는,상기 주편의 이동 경로를 사이에 두고 서로 마주보도록 이격되고, 상기 이동 경로를 따라 연속하여 배열되는 복수개의 롤러;상기 복수개의 롤러에 장착되며, 적어도 일부가 상기 이동 경로에 대하여 전후진할 수 있도록 형성되는 복수개의 롤러 조립체;를 포함하는 주조 장치.
- 청구항 6에 있어서,상기 세그먼트는,상기 이동 경로를 사이에 두고 서로 마주보도록 이격되고, 복수개의 롤러 조립체가 각각 지지되는 제1 프레임 및 제2 프레임;을 포함하고,상기 롤러 조립체는 유압을 이용하여 적어도 일부가 후진하며 상기 롤러를 상기 이동 경로로부터 후퇴시킬 수 있도록 형성되는 주조 장치.
- 청구항 6에 있어서,상기 롤러 조립체는,상기 롤러를 회전 가능하게 지지하는 지지체;상기 지지체의 배면에 장착되고, 적어도 일부가 신축 가능한 고정축;상기 지지체의 배면측에서 상기 고정축을 감싸도록 장착되는 몸체;상기 몸체의 배면을 관통하여 장착되고, 상기 고정축의 후단에 연결되며, 적어도 일부가 유압을 이용하여 상기 이동 경로에 대하여 전후진할 수 있도록 형성되는 플런저;를 포함하는 주조 장치.
- 이동 경로상의 주편으로부터 롤러를 분리시키는 롤러 분리 방법으로서,주형으로부터 주편을 인발하는 과정;이동 경로를 따라 연속 배열된 복수개의 세그먼트를 이용하여 상기 주형에서 인발되는 주편의 이동을 안내하는 과정;상기 주편의 이동 중 또는 정지 시에, 상기 세그먼트에 구비된 복수개의 롤러에 장착되며 적어도 일부가 상기 이동 경로에 대하여 전후진할 수 있도록 형성되는 복수개의 롤러 조립체를 상기 이동 경로로부터 후퇴시켜 상기 롤러 조립체에 지지된 롤러를 주편으로부터 이격시키는 과정;을 포함하는 롤러 분리 방법.
- 청구항 9에 있어서,상기 롤러를 주편으로부터 이격시키는 과정은,상기 롤러 조립체의 내부에 유압을 인가하여 상기 롤러 조립체의 일부를 상기 이동 경로로부터 후퇴시키는 과정;상기 롤러 조립체의 일부에 연결된 롤러를 상기 이동 경로로부터 후퇴시키는 과정;을 포함하는 롤러 분리 방법.
- 청구항 10에 있어서,상기 롤러를 주편으로부터 이격시키는 과정은,상기 롤러 조립체의 내부에 유압을 인가할 때 단속 방식으로 인가하는 과정;을 더 포함하는 롤러 분리 방법.
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CN201880051573.3A CN110997180B (zh) | 2017-08-09 | 2018-08-08 | 辊组件、铸造装置和用于该铸造装置的辊分离方法 |
BR112020002585-2A BR112020002585B1 (pt) | 2017-08-09 | 2018-08-08 | Conjunto de cilindro, aparato de fundição e método de separação de cilindros para o mesmo |
US16/637,495 US11141781B2 (en) | 2017-08-09 | 2018-08-08 | Roller assembly, casting apparatus, and roller separating method for same |
EP18843075.5A EP3666417B1 (en) | 2017-08-09 | 2018-08-08 | Roller assembly, casting apparatus and roller separating method therefor |
JP2020505774A JP6972301B2 (ja) | 2017-08-09 | 2018-08-08 | ローラー組立て体、鋳造装置及び該ローラーの引き離し方法 |
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KR101949701B1 (ko) | 2019-02-19 |
EP3666417A1 (en) | 2020-06-17 |
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EP3666417B1 (en) | 2021-10-06 |
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