KR20200004069A - Cutting apparatus and cutting method - Google Patents

Abstract

The present invention relates to a cutting device and a cutting method thereof. The cutting device comprises: a first roller part including a first roller arranged side by side to form a path for transporting a slab; a cutting part provided in the first roller part to cut the slab; a second roller part including a second roller for forming a path for transporting the slab and spaced apart from the front of the first roller part in a conveying direction of the slab; a container provided in front of the second roller part in the conveying direction of the slab and providing a space for accommodating a cut product shorter than the separation distance between the first roller part and the second roller part when the slab is cut; and a guide part forming a path through which the cut product cut at the first roller part moves to the container through the lower part of the second roller. The present invention allows a head crop formed on the slab to be cut stably.

Description

Cutting apparatus and cutting method

The present invention relates to a cutting device and a cutting method thereof, and more particularly to a cutting device and a cutting method capable of stably cutting the head crop formed on the cast steel.

Generally, casting in a continuous casting process is performed by injecting molten steel into a mold. The cast pieces formed in the mold by the casting operation are transferred along the casting part formed by forming a curved portion at the lower part of the mold. A cast piece can be drawn out from a casting part by conveying a dummy bar using the several pinch roller provided in the.

When the cast steel is cast to the desired length, the dummy bar is separated from the cast steel, and the cast bar separated from the dummy bar is cut to an appropriate length to meet the needs of the consumer. At this time, a head crop of a projection shape is formed in the head portion of the slab connected to the dummy bar, the head crop can be cut first before the process of cutting the slab to a certain length.

Recently, in the case of cutting the head crop, the length of the slab cut together with the head crop is minimized due to the improvement of the error rate. As a result, the load of the slab cut together with the head crop is less than the load of the head crop so that the cut head crop does not maintain the cut state and is overturned on the conveying path. As such, when the head crop is overturned on the transfer path, there is a problem that a guide (or grid) is caught to guide the cast or head crop to the next transfer path.

As such, when the head crop is rolled over and caught by the guide, the drawn slab is transferred through the top of the head crop, causing defects such as scratching grooves and scratches on the surface of the slab. The problem of leaving the transport path may occur.

KR 0408674 B KR 2013-0028426 A

The present invention provides a slab cutting device and a cutting method thereof capable of stably processing a head crop of a cut slab.

Slab cutting device according to an embodiment of the present invention, the first roller unit including a first roller disposed side by side to form a path for conveying the cast; A cutting portion provided in the first roller portion to cut the cast steel; A second roller part including a second roller for forming a path for transporting the cast piece, the second roller part being spaced apart in front of the first roller part with respect to the conveying direction of the cast piece; It is provided in front of the second roller portion with respect to the conveying direction of the slab, and provides a space for accommodating the cut cut shorter than the separation distance between the first roller portion and the second roller portion when cutting the slab Container to be made; And a guide part forming a path through which the cut material cut at the first roller part may move to the container through the lower part of the second roller.

The first roller part includes a first support for supporting the first roller, and a driver for reciprocating the first support in the moving direction of the object, wherein the second roller part supports the second roller. It includes a second support for the guide portion may be provided on at least one of the first support and the second support.

The guide part may include one plate having an inclined surface formed on at least a portion thereof to transfer the cut material from the upper part of the first roller to the container through the lower part of the second roller.

The guide portion may include: a first guide portion provided on the first support to convey the cut object to the lower portion of the second roller; And a second guide part provided on the second support to transfer the cut object transferred through the first guide part to the container, wherein the first guide part moves the cut object to the second guide part. At least a portion of the first guide part may be formed to be inclined downward toward the second guide part so as to be able to be made.

The first guide portion is connected to the first support so as to extend in the conveying direction of the cast steel, the second guide portion is connected to the second support so as to extend in the conveying direction of the cast steel, and the first guide portion and the second guide The part can be arranged so that at least one part can overlap.

The first roller unit may include an auxiliary unit capable of supporting a cut cut between the first rollers and pushing at least a portion of the cut to the upper portion of the first roller.

The auxiliary unit may include a third guide part provided between the first rollers to support the cutting object; And an elevating part provided below the third guide part to be in contact with at least a portion of the cut material supported by the third guide part.

The third guide portion is provided so as to cross between the first roller, the third guide portion is disposed so that a plurality of spaced apart in the width direction of the slab,

Among the plurality of third guide parts, a pair of third guide parts provided in the middle in the width direction of the cast piece may be disposed to have a larger distance than the width of the cut material.

The lifting unit is provided to extend in the vertical direction, the upper support rod is connected to the first support to be rotatable; And an elevator provided on the first support to move a lower portion of the support rod in a vertical direction, wherein the elevator includes a drive shaft that is linearly movable in a direction in which the cast steel is conveyed, and the drive shaft includes the support rod. It can be connected to the rotatable.

A slab cutting method according to an embodiment of the present invention, a method for cutting a slab to be conveyed along a conveying path, the process comprising the steps of providing a cast; Cutting at least a portion of the cast steel; And a process of discharging the cut material and the cast steel cut from the cast steel through different transport paths.

The cut may include a head crop.

The conveying path includes a first roller part and a second roller part provided to be spaced apart in front of the first roller part with respect to a conveying direction of the cast piece, and the cut material includes the first roller part and the second roller part. Cut to a length shorter than the separation distance, the cut piece is transferred to the second roller portion, the cut can be discharged between the first roller portion and the second roller portion.

And a guide part disposed to be inclined downward in a direction in which the cast pieces of the first roller part and the second roller part are transported, and the cut material may be discharged while moving downward along the upper part of the guide part.

After the cutting of the slab, when the cut is rolled over from the first roller, supporting the cut between the rollers of the first roller; Restoring at least a portion of the cut to a state prior to overturning;

The restoring process may include a process of turning the supporting rod disposed in the up and down direction in the lower portion of the roller in a horizontal state to rotate the rolled over cut in the opposite direction as the rolled over.

After the recovery process, the recovered cut may be discharged between the first roller portion and the second roller portion.

According to an embodiment of the present invention, the head crop of the cut slab can be stably processed. That is, there is a problem in that the head crop cut during the cutting of the head crop of the cast steel is rolled over to the transfer path of the cast steel to damage the equipment or interfere with the cutting process of the cast steel. By changing the path to remove the cut head crop it can be prevented that the cut head cropping roll over to the conveying path of the slab to interfere with the transfer of the slab or to cause defects in the slab.

In addition, even when the cut head crop is rolled over the transfer path of the cast steel, the overturned head crop can be stably removed by restoring onto the transfer path of the cast steel.

1 is a view schematically showing a slab cutting device according to the prior art.
Figure 2 is a view showing a problem that occurs when cutting the head crop of the cast using a slab cutting device according to the prior art.
Figure 3 is a perspective view showing a slab cutting device according to an embodiment of the present invention.
4 is a perspective view illustrating the guide unit illustrated in FIG. 3.
5 is a view showing a state of cutting the cast using a slab cutting device according to an embodiment of the present invention.
6 is a perspective view showing a slab cutting device according to a modification of the present invention.
7 is a perspective view showing the auxiliary unit shown in FIG.
8 is a perspective view showing the lifting unit shown in FIG.
9 and 10 are views showing a state of restoring the overturned head crop using a slab cutting device according to a modification of the present invention.

Hereinafter, with reference to the accompanying drawings will be described an embodiment of the present invention in more detail. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in various forms, and only the embodiments are intended to complete the disclosure of the present invention and to those skilled in the art to fully understand the scope of the invention. It is provided to inform you. Like numbers refer to like elements in the figures.

Prior to describing the present invention, a cast cutting device according to the prior art and the problems thereof will be described.

1 is a view schematically showing a slab cutting device according to the prior art, Figure 2 is a view showing a problem that occurs when cutting the head crop of the slab using the slab cutting device according to the prior art.

Referring to FIGS. 1 and 2, the slab cutting device includes a first roller part 20 that forms a conveying path of the slab S, and a cutting part provided in the first roller part 20 to cut the slab S. 10 and the second roller portion 30 provided in front of the first roller portion 20 with respect to the conveying path of the cast steel S and a part of the cut steel slab S, for example, a head crop can be accommodated. It may include a container 50 provided in front of the second roller portion 30 with respect to the transport path of the cast (S).

The first roller part 20 includes a plurality of first rollers 24 arranged side by side to form a conveyance path of the cast steel S, a first support 22 supporting the plurality of first rollers 24, and The first support 22 and the first roller 24 may include a drive unit (not shown) connected to the first support 22 to reciprocate in the moving direction of the cast (S). Through such a configuration, the first roller part 20 may transfer the cast steel S along the direction in which the cast steel S is drawn out while supporting the cast steel S on the upper portion of the first roller 24. . The first roller part 20 does not transfer the slab S through the rotation of the first roller 24, but the driving part to prevent the first roller 24 from being melted when the slab S is cut. By moving the first support 22 and the first roller 24 along the direction in which the cast (S) is drawn through the cast (S).

The cutting portion 10 is connected to the body 12 to move along the longitudinal direction of the first support 22 to the first support 22, and to the body 12 so as to reciprocate in the width direction of the cast (S). And a burner 14 capable of generating a flame.

The second roller portion 30 is disposed in front of the first roller portion 20 in the conveying direction of the cast steel S, that is, the drawing direction of the cast steel S, and cut on the first roller portion 20. Form a path for transporting the cast (S). The second roller part 30 includes a second roller 34 disposed to be spaced apart from the first roller part 20, and a second support 32 supporting the second roller 34. Unlike the part 20, it is possible to transfer the cast (S) in a fixed state. The second roller part 30 is installed to be spaced apart from the first roller part 20 by a predetermined distance. The first roller part 20 can be smoothly transferred to the second roller part 30. ) And the second roller portion 30 may be provided with a grid 40 for guiding the slab S to the second roller portion 30. The grid 40 may include a first grid 41 provided in the first roller part 20 and a second grid 42 provided in the second roller part 30. The first grid 41 may be disposed in front of the first roller part 20 with respect to the conveying direction of one side of the first roller part 20 adjacent to the second roller part 30, for example, the cast steel S. The second grid 42 may be disposed at one side of the second roller part 30 adjacent to the first roller part 20, for example, behind the second roller part 30 with respect to the conveying direction of the slab S. have. The first guide part 110 may be disposed to overlap the second grid 42 or to be spaced apart from each other by moving along the moving direction of the first support 22. At this time, when the first grid 41 and the second grid 42 overlap each other, the upper side of the first grid 41 and the second grid 42 is the first roller 24 and the second roller 34 and It may be disposed at the same or similar height to form a path for transferring the slab (S) and the head crop (C) cut from the first roller portion 20 to the second roller portion (30).

The container 50 is disposed in front of the second roller part 30 with respect to the other side of the second roller part 30, for example, the conveying direction of the slab S, and cut at the first roller part 20 to form a grid 40. ) And the head crop C of the cast steel S transferred through the second roller part 30.

Through this configuration, the slab cutting device can cut the cast (S) cast in a continuous casting process to a predetermined length, for example, the desired length by the consumer to transfer to the subsequent process. At this time, the slab cutting device may cut the head crop of the slab before cutting the slab to a certain length. The cut head crop (C) is pushed by the cast slab as shown in (a) of Figure 2 is transferred to the container 50 through the grid 40 and the second roller portion 30, and then scrap processing plant, etc. Can be transferred to.

On the other hand, in recent years, the head crop is cut into short lengths to improve the error rate. When the head crop is cut to a short length in this way, that is, when the length of the slab connected to the head crop C is shortened, the center of gravity is biased toward the head crop C and the head crop C is cut. It is not maintained, and a phenomenon of overturning to the head crop C side occurs. When the head crop C is overturned in the first roller part 20, the head roller C falls over the space between the first rollers 24 of the first roller part 20, or as shown in FIG. 2, to the second roller part 30. Before the transfer, the grid 40, that is, the cast steel S drawn by being sandwiched between the first grid 41 and the second grid 42 has a problem of acting as an obstacle. In other words, when the head crop C is sandwiched between the first grid 41 and the second grid 42, a part of the head crop C protrudes through the feed path of the cast steel S, and the cast steel S is the head crop. (C) it is conveyed through the upper surface of the cast (S) defects such as scratches, scratches, etc. are generated. And in severe cases, the drawn cast (S) may be a problem of leaving the transfer path by the head crop (C).

This problem is that when cutting the slab, the cut material, for example, the head crop, is shorter than the separation distance between the first roller part 20 and the second roller part 30 or the separation distance between the first roller 24. This is often the case.

Therefore, in the present invention, when cutting the cast steel, the length of the cut material, for example, the head crop is cut between the first roller portion 20 and the second roller portion 30 or the distance between the first roller 24 In the shorter case, by moving the cut and the cast pieces in different conveying paths, it is possible to prevent the cut from disturbing the movement of the cast pieces or causing defects in the cast pieces. In addition, when the cuts fall into the space between the first rollers 24 of the first roller part 20, the cuts may be returned to the transfer path to be discharged to the container 50.

Hereinafter, with reference to the accompanying drawings will be described for a slab cutting device according to the present invention.

3 is a perspective view showing a slab cutting device according to an embodiment of the present invention, Figure 4 is a perspective view showing a guide portion shown in Figure 3, Figure 5 is a slab cutting device using a slab cutting device according to an embodiment of the present invention 6 is a perspective view showing a cutting device according to a modification of the present invention, Figure 7 is a perspective view showing the auxiliary unit shown in Figure 6, Figure 8 is a lift shown in Figure 6 9 and 10 are views showing a state of recovering the overturned head crop by using a slab cutting device according to a modification of the present invention.

3 is a cast slab cutting apparatus according to an embodiment of the present invention, the first roller portion 20 including a first roller 24 arranged side by side to form a path for the cast (S) to be processed object and , A cutting portion 10 provided in the first roller portion 20 to cut the slab S, and a second roller capable of moving the cut slab, and the first roller with respect to the moving direction of the slab S. The container which provides the space which can accommodate the 2nd roller part 30 provided in front of the part 20, and the part of the cut piece which was provided in front of the 2nd roller part with respect to the moving direction of the slab S, and was cut | disconnected. 50 and a guide part 100 capable of moving the head crop cut from the cast steel to the container 50.

Cast iron cutting device according to an embodiment of the present invention except for the structure of the cutting device and the guide portion 100 according to the prior art is almost the same, the first roller portion 20, the second roller portion 30 The description of the cutting unit 10 and the container 50 will be omitted.

Referring to FIG. 4, the guide part 100 may include a first guide part 110 connected to the first roller part 20 to move the head crop C downwardly from the top of the first roller 24. It may include a second guide portion 120 connected to the second roller portion 30 to move the head crop (C) moved along the first guide portion 110 to the container.

The first guide part 110 may be formed in a plate shape in which an inclined surface is formed on at least a portion of the head crop C to move downward from the lower portion of the first roller 24. The first guide part 110 may have a top surface and a bottom surface that are narrower than both side surfaces, and may have a width narrower than the width of the head crop C. Accordingly, in order to stably transfer the head crop C, the plurality of first guide parts 110 may be spaced side by side over at least the width of the slab S. FIG.

One side of the first guide portion 110 connected to the first support 22 is disposed to have the same height or the same height as the upper surface of the first roller 24, the other side is the second roller portion 30 side May be disposed to face. Accordingly, the first guide part 110 may have a surface inclined downward from the first roller part 20 toward the second roller part 30. The first guide part 110 may be disposed to be spaced apart from each other in parallel to form a path in which the head crop C moves, and the cut head crop C may be formed on the first roller 24. It can be transferred to the container 50 through the lower side of the two rollers (34).

The second guide part 120 may serve to guide the head crop C transferred through the first guide part 110 into the container 50. The second guide part 120 may be provided in plurality so as to form a transfer path of the head crop C. At this time, the second guide portion 120 may be formed in a plate shape in which the upper surface and the lower surface is formed narrower than both sides, when the first roller portion 20 is moved to the second roller portion 30 Adjacent to the other side of the guide portion 110 may be formed to a length enough to form a transfer path of the head crop (C). Alternatively, as illustrated in FIGS. 3 and 4, the second guide part 120 has a length sufficient to overlap the other side of the first guide part 110 by a predetermined distance to form a transfer path of the head crop C. It may be formed. When the first guide part 110 and the second guide part 120 overlap, the first guide part 110 and the second guide part 120 may be alternately disposed.

The container 50 may be disposed in front of the second roller portion 30 with respect to the conveying direction of the cast (S). In this case, the container 50 may accommodate the head crop C transferred through the first guide part 110 and the second guide part 120.

A separation preventing member 200 is provided between the second roller part 30 and the container 50 to prevent the head crop C from being separated from the first guide part 110 and the second guide part 120. Can be. The separation prevention member 200 may be disposed in a direction crossing the transfer direction of the head crop C, and the head crop C transferred along the first guide part 110 and the second guide part 120. An opening 210 through which this can be formed can be formed. In this case, the height of the lower surface of the opening 210 may be formed to have the same height as the upper surface of the second guide part 120.

The head crop C cut through such a configuration is the container 50 through the lower portion of the second roller 34 in the upper portion of the first roller 24 through the first guide portion 110 and the second guide portion 120. Can be discharged. And the cut slab (S) may be transported along the upper portion of the second roller 34 from the upper portion of the first roller 24. In other words, the cut head crop (C) and the cut slab (S) can be transferred to different transport paths. It is possible to prevent the cut head crop (C) to interfere with the transfer of the cut slab (S) to reduce the operating efficiency and the quality of the cast (S).

Here, the guide part 100 is described as including the first guide part 110 and the second guide part 120, but the guide part 100 includes one plate extending in the width direction and the length direction of the cast steel. The first roller unit 20 may be disposed to be inclined downward toward the second roller unit 30.

On the other hand, the head crop (C) cut from the slab (S) in the first roller portion 20 may be overturned to fall into the space between the first roller 24 may occur. In this case, the dropped head crop C may be returned to the first roller 24 and discharged to the container 50 through the guide part 100. Accordingly, the cutting device according to a modification of the present invention may include an auxiliary unit 300 for returning the head crop C dropped into the space between the first rollers 24 onto the first rollers 24.

6 and 7, the auxiliary unit 300 includes a plurality of first rollers constituting the first roller part 20, for example, a lower portion of the first roller part 20 where the slab S is cut. 24 may be disposed between two first rollers 24 provided in a direction adjacent to the front or second roller portion 30 with respect to the conveying direction of the cast (S).

The auxiliary unit 300 includes a third guide part 310 connected to the first support 22 and a lower portion of the third guide part 310 so as to support the head crop C. It may include a lifting unit 320 that can raise at least a portion of.

The third guide part 310 may be connected to the first support 22 to extend in a direction crossing with respect to the conveying direction of the cast steel S or the width direction of the cast steel S. The third guide part 310 may be arranged to be spaced apart from each other along the width direction of the slab (S). For example, four third guide parts 310 may be provided, and two third guide parts 310 arranged in the middle may be arranged to have a gap that is at least narrower than the width of the slab S. The head crop C of the slab S is formed to have a width smaller than the width of the slab S. When cutting the head crop C, a part of the cast piece is cut in a connected state, and thus the cut head crop C may be formed in a 'T' shape. However, when shortening the length of the slab to be cut together when cutting the head crop (C), the cut head crop (C) can fall into the space between the first roller 24 fall. Accordingly, in the modified example of the present invention, the head crop C cut between the first rollers 24 may be disposed between the first rollers 24 to prevent the auxiliary units 300 from falling between the first rollers 24. ) Is provided with a third guide part 310 capable of supporting.

In addition, when shortening the length of the slab to be cut together when cutting the head crop (C), even if the head crop (C) can be supported through the third guide portion 310, the load of the head crop (C) is the head The head crop C cut on the third guide part 310 may be overturned because the load of the cast piece connected to the crop C is greater. In this case, even if the head crop C is pushed on the cast steel S drawn by the first roller 24, a problem that cannot be moved onto the first roller 24 may occur. Accordingly, when the head crop C overturned on the third guide part 310 is restored to the same state as before the overturning, the head crop C cut by the cast slab may be moved onto the first roller 24. . The elevating unit 320 may restore the head crop C cut from the lower portion of the third guide portion 310 to the same state as before the upturn. At this time, the elevating unit 320 may be disposed between the two third guide portion 310 provided in the middle of the third guide portion 310, and the direction of rotation when the cut head crop (C) is overturned The head crop C may be rotated and restored in the opposite direction. Here, the third guide part 310 may be all formed in the same shape, and as shown in FIG. 7, the two third guide parts 310 provided in the middle may include a head part of the cast steel S, for example, a head crop ( C) may be formed in a shape similar to the head portion of the cast (S) connected. That is, the two third guide portion 310 provided in the middle of the interval between them so that the front has a narrower width than the rear in the movement direction of the cast steel, more preferably so as to have a larger gap than the width of the head crop (C) It may be bent and formed.

Referring to FIG. 8, the lifting unit 320 is disposed to extend in the vertical direction, and the support rod 324 is connected to the first support 22 so as to be rotatable, and the lower portion of the support rod 324 is in the vertical direction. It may include an elevator 321 connected to the support rod 324 to move to.

One side of the support rod 324 may be rotatably connected to the first support 22 through the hinge 323. At this time, one side of the support rod 324 is the lower portion of the first roller 24a which is disposed behind the moving direction of the cast steel S of the two first rollers 24a, 24b of the first roller portion 20. Can be arranged on the side. The support rod 324 may be disposed to extend along the moving direction of the cast (S) between the third guide portion 310 provided among the plurality of third guide portion 310.

The elevator 321 may be installed on the first support 22 at a lower side of the support rod 324, and may include a driving shaft 322 that can linearly move in the direction in which the cast steel S is transferred. The drive shaft 322 of the lifting unit 320 may be rotatably connected to the support rod 324, and may be connected to the support rod 324 using a separate connection member 326 such as a link as necessary. .

Through this configuration, the elevator 321 may operate the support rod 324 to restore the head crop C dropped from the third guide part 310 to the same state as before cutting. For example, the cut head crop C may be overturned and disposed above the third guide part 310 as shown in FIG. 9. In this case, the lower part of the support rod 324 can be raised by driving the elevator 321 to advance the driving shaft in the conveying direction of the cast steel S. The support rod 324 may be disposed in the horizontal direction between the third guide portion 310. At this time, while the other side of the support rod 324 is raised, the head crop C is overturned as shown in FIG. 10 by pushing up the overturned head crop C in contact with the bottom surface of the overturned head crop C. Can be restored to the same state as before. On the other hand, when the cut head crop C is discharged to the container 50 through the guide unit 100 without being rolled over, the driving shaft 322 of the elevator 321 is contracted to lower the other side of the support rod 324. I can wait in the state made. At this time, the support rod 324 may maintain the vertical state, or may be disposed at a position that does not collide when the cut head crop (C) is overturned.

The lifting unit 320 may be variously modified as long as the structure can recover the overturned head crop C.

Hereinafter, the method for cutting a cast steel according to the present invention.

First, the primary cutting process will be described. In the initial stage of the slab cutting operation, the length of the drawn slab is measured by a measuring roll. The cutting distance to be cut by the operator is set in the controller. The introduced cast piece is moved on a roll, and the length is sensed by the sensor as the cast piece moves. When the set cutting length is sensed, the clamping of the cutting unit 10 is lowered, and the upper surface of the slab S is pressed at a constant pressure, and the burners 14 corresponding to both sides cut the slab S while traveling inward in the slab width direction. do. At this time, the cutting unit 10 moves at the same speed as the speed of the cast (S). That is, the cutting part 10 is drawn and moved by the cast slab S. When the flame of the burner 14 approaches the roller, the sensor (not shown) operates the driver of the first roller part to operate the first roller part 20. ) Is the first cutting operation while moving forward and backward. The primary cutting operation is stopped leaving the remaining portion of the predetermined width (for example, 110 mm) in the width direction of the cast (S). At this time, the burner 14 on one side stops the cutting operation and travels back to the home position.

The first roller portion 20 is moved by the actuator to the roll side of the inlet side and maintains the state. When the cutting unit 10 is drawn to the drawn cast piece S adjacent to the first guide unit 110, the sensor detects the position of the cutting unit 10, and the controller transmits a detection signal. Thereafter, the burner 14 waiting to cut the remaining portion of the predetermined width remaining after the slab S is cut first. The secondary cutting operation may be performed between the front two last first rollers 24 of the first roller portion 20 with respect to the conveying direction of the cast steel (S).

This secondary cutting operation can be mainly used for cutting the head crop (C) of the cast steel.

When cutting the head crop (C) of the cast in this way, the cut head crop (C) is a second roller (top) of the first roller 24 by the guide portion 100 as shown in FIG. 34 may be discharged to the container 50 through the lower portion. That is, in the cast (S) cast in a continuous casting process, the head crop (C) is discharged to the container 50 through the lower portion of the second roller 34 in the upper portion of the first roller 24, the head crop (C) After cutting), the cut piece is moved along the upper portion of the second roller 34 in the upper portion of the first roller 24.

Moving the cut head crop (C) and the slab (S) in this way along different paths, the cut head crop (C) is caught by the guide portion 100 to hinder the transfer of the subsequently cut slab or the surface of the slab It is possible to prevent the occurrence of a defect.

On the other hand, the cut head crop (C) is not discharged to the container 50 through the guide portion 100, it may be overturned and fall between the first roller 24.

Referring to FIG. 9, the head crop C cut from the slab is overturned, dropped into the space between the first rollers 24, and disposed in the third guide part 310. At this time, the elevator 321 of the auxiliary unit 300 can maintain the vertical state by the other side of the support rod 324 is lowered in the state in which the drive shaft 322 contracted.

When the head crop C cut in this way falls on the third guide part 310 provided between the first rollers 24, the driving shaft 322 of the elevator 321 is extended and supported as shown in FIG. 10. The other side of the rod 324 may be raised. The upper surface of the support rod 324 is disposed in a horizontal state while contacting the lower surface of the head crop (C) dropped to the upper portion of the third guide portion 310 to restore the head crop (C) to the state before overturning The first roller 24 may be pushed upward.

When the head crop C is pushed up the first roller 24 in this manner, the head crop C is pushed by the drawing cast S at the rear of the head crop C as shown in FIG. 8. It may be discharged to the container 50 via the lower portion of the second roller 34 through the portion 100. In addition, the elevator 321 may contract the driving shaft 322 to lower the other side of the support rod 324.

On the other hand, here is illustrated the cutting operation of the cast head head crop, the present invention can be applied to various cast cutting process,

Although the invention has been described with reference to the accompanying drawings and the preferred embodiments described above, the invention is not limited thereto, but is defined by the claims that follow. Accordingly, one of ordinary skill in the art may variously modify and modify the present invention without departing from the spirit of the following claims.

10: cutting portion 20: first roller portion
30: second roller portion 100: guide portion
110: first guide portion 120: second guide portion
300: auxiliary unit 310: third guide portion
320: lift
S: Cast C: Head Crop

Claims (16)

A first roller part including a first roller arranged side by side to form a path for transporting the cast steel;
A cutting portion provided in the first roller portion to cut the cast steel;
A second roller part including a second roller for forming a path for transporting the cast piece, the second roller part being spaced apart in front of the first roller part with respect to the conveying direction of the cast piece;
It is provided in front of the second roller portion with respect to the conveying direction of the slab, and provides a space for accommodating the cut cut shorter than the separation distance between the first roller portion and the second roller portion when cutting the slab Container to be made;
And a guide part defining a path through which the cut material cut at the first roller part may move to the container through the lower part of the second roller. The method according to claim 1,
The first roller portion includes a first support for supporting the first roller and a driver for reciprocating the first support in the direction of movement of the workpiece,
The second roller portion includes a second support for supporting the second roller,
The guide unit is a cutting device provided on at least one of the first support and the second support. The method according to claim 2,
The guide unit,
And a plate having an inclined surface formed on at least a portion thereof to transfer the cut material from the upper part of the first roller to the container through the lower part of the second roller. The method according to claim 2,
The guide unit,
A first guide part provided on the first support to transfer the cut object to the lower part of the second roller; And
And a second guide part provided on the second support to transfer the cut material transferred through the first guide part to the container.
The first guide unit,
Cutting device for forming at least a portion of the first guide portion inclined downward toward the second guide portion so as to move the cutting to the second guide portion. The method according to claim 4,
The first guide portion is connected to the first support so as to extend in the conveying direction of the cast steel,
The second guide portion is connected to the second support so as to extend in the conveying direction of the cast steel,
The first guide portion and the second guide portion at least a portion arranged so that the overlapping arrangement. The method according to any one of claims 1 to 5,
And the first roller portion includes an auxiliary unit capable of supporting a cut cut between the first rollers and pushing at least a portion of the cut to the upper portion of the first roller. The method according to claim 6,
The auxiliary unit,
A third guide part provided between the first rollers to support the cutting object; And
And an elevating part provided below the third guide part so as to be in contact with at least a portion of the cut material supported by the third guide part. The method according to claim 7,
The third guide portion is provided to cross between the first roller,
The third guide portion is disposed so that a plurality of spaced apart in the width direction of the cast piece,
And a pair of third guide portions provided in the middle of the plurality of third guide portions in the width direction of the cast piece so as to have a larger distance than the width of the cut material. The method according to claim 8,
The lifting unit,
It is provided to extend in the vertical direction, the upper support rod is connected to the first support to be rotatable; And
And an elevator provided in the first support to move a lower portion of the support rod in a vertical direction.
The elevator has a drive shaft that can be linearly moved in the direction in which the cast piece, the drive shaft is connected to the support rod rotatably cutting device. A method of cutting a cast steel conveyed along a conveying path,
The process of preparing cast pieces;
Cutting at least a portion of the cast steel;
And cutting the cut pieces and the cast pieces cut through the cast pieces through different transport paths. The method according to claim 10,
Wherein said cut comprises a head crop. The method according to claim 11,
The conveying path includes a first roller portion and a second roller portion provided to be spaced apart in front of the first roller portion with respect to the conveying direction of the cast steel,
The cut is cut to a length shorter than the separation distance of the first roller and the second roller,
The slab from which the cut object is removed is transferred to the second roller part.
And said cut material is discharged between said first roller portion and said second roller portion. The method according to claim 12,
And a guide part disposed to be inclined downward in a direction in which the slabs of the first roller part and the second roller part are conveyed.
The cutting method is a cutting method is discharged while moving downward along the upper portion of the guide portion. The method according to claim 12 or 13,
After the process of cutting the slab,
When the cut is rolled over in the first roller portion,
Supporting the cut object between the rollers of the first roller part;
Lifting at least a portion of the cut to restore it to its state before being overturned. The method according to claim 14,
The recovery process,
And turning the supporting rod disposed in the vertical direction in the lower portion of the roller in a horizontal state to rotate the rolled over cut in the opposite direction as the rolled over. The method according to claim 15,
And a cutout recovered after the restoring process is discharged between the first roller portion and the second roller portion.

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