JP2920059B2 - Dummy bar storage device for continuous casting equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dummy bar storage device for a continuous casting facility. The dummy bar is a guide bar that plugs the bottom of the mold at the beginning of casting and engages with the slab and pulls it down.When the slab is guided to the final guide roll segment, it is separated from the slab, Is stored in the storage space. The present invention relates to a storage device for transferring and storing such a dummy bar from a final guide roll to a storage space.

[0002]

2. Description of the Related Art A conventional typical continuous casting facility will be described with reference to FIG. 1 is a tundish, 2 is a mold, 2 cooling devices 3 and a drawer roll 4 are arranged in that order on the lower surface of the mold 2, and further, a guide roll segment 5 composed of a plurality of rolls is connected. A guide band 6 extends, which comprises a curved portion 6a and a horizontal portion 6b. The guide strip 6 continuously guides the slab C until it is completely solidified so as not to cause large bulging (expansion and deformation) due to the static iron pressure or the like.
On the side of the mold 2, a casting floor 10 extends horizontally at substantially the same height as the mold 2, and a dummy barker 11 runs on the casting floor 10. Further cast floor 10
A dummy bar hoisting machine 12 is provided at the end on the side opposite to the mold. The hoisting machine 12 has a known dummy bar delivery device and a dummy bar hoisting device.

The dummy bar DB has a chain link structure to pass through the curved portion 6a of the guide roll segment 5, and is inserted from above the mold 2 at the beginning of casting.
After the casting is started, when the dummy bar DB passes through the final guide roll segment 5a, the dummy bar DB is separated from the slab by the dummy bar separating device 7 and further lifted by the dummy bar winding machine 12 and placed on the dummy bar car 11. As described above, the dummy bar DB is pulled out and delivered near the final guide roll segment 5a, so that the dummy bar hoisting machine 12 is installed at a position corresponding to above the final guide roll segment 5a.

[0004]

By the way, the guide band 6
, That is, the number of guide roll segments 5 or the number of rolls, is determined by the speed of drawing the slab and the thickness of the slab. Then, in order to improve the production amount, the drawing speed must be necessarily increased, so that the length of the guide band 6 must be further increased (L2). However, in the case of the conventional continuous casting equipment, since the dummy bar hoisting machine 12 is installed at a position corresponding to above the final guide roll segment 5a, the casting floor 10 also needs to be extended further rearward. The length of the building 13 and the overhead crane 14 have been increased to 113,
As shown by 114, it must be extended and enlarged, which is uneconomical in terms of equipment. In other words, there is a problem that the performance of the continuous casting facility cannot be improved unless the existing building is extensively remodeled.

SUMMARY OF THE INVENTION In view of the circumstances described above, an object of the present invention is to provide a dummy bar storage device capable of extending the length of a casting facility without extending a cast floor or a tall building.

[0006]

SUMMARY OF THE INVENTION A dummy bar storage device according to the present invention is provided at a final position of a guide band in which a number of guide roll segments are continuously provided along a pass line of a slab drawn from a mold. A dummy bar separating device, a roller table band formed by connecting a large number of roller tables provided so as to extend in the pull-out direction from the final position of the guide band, and the guide on a casting floor installed above the guide band. A dummy bar hoisting machine installed above a belt, and a continuous casting facility having a dummy barker running between the mold and the dummy bar hoisting machine on the casting floor, wherein A roller that travels between the provided collection position and a transfer position located below the dummy bar winding device in the roller table band. The dummy bar lifter has lifting means for lifting and holding the dummy bar, which is separated from the slab by the dummy bar separating device and located on the roller table, upward. .

[0007]

In the present invention, the dummy bar inserted from above the mold is pulled out together with the cast piece, and when the rear end of the dummy bar passes over the last roll segment of the guide band, the dummy bar is separated by the dummy bar separating device and the roller table band is fed. . When the dummy bar lifter is fed to the collection position near the end of the roller table band, the dummy bar lifter lifts and holds the dummy bar by the lifting means, travels in the anti-pull-out direction, and travels to the transfer position below the dummy bar hoist. Then, at the transfer position, the dummy bar is lifted from the dummy bar lifter by the dummy bar hoist, placed on the dummy bar car and stored. As described above, the dummy bar lifter transports the used dummy bar from near the end of the roller table band to near the end of the guide band.Therefore, there is no need to extend the casting floor on which the dummy bar hoist is installed. The building on the side is a low-height building, which can reduce equipment costs.Also, without increasing the length of the existing building or increasing the size of the overhead crane, etc., the length of the existing continuous Ability can be improved.

[0008]

Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a side view of the dummy bar storage device of the present invention, and FIG.
Is a plan view thereof. 1 and 2, a tundish 1, a mold 2, a secondary cooling device 3, a drawer roll 4,
A guide band 6 having a series of guide roll segments 5, a roller table band 20 having a large number of roller tables 21 and a roller table 22 with a drive motor extending in a drawing direction from the final position of the guide band 6, a dummy bar separating device 7, a casting floor. 1
0, dummy bar car 11, dummy bar hoisting machine 12, building 13,
The overhead crane 14 is substantially the same as the conventional example shown in FIG. In FIG. 2, reference numeral 18 shown on the cast floor 10 is a traveling rail of the dummy cover car 11. Also,
The rollers 23 of the roller table 22 are driven to rotate by a motor 24. The present invention, in addition to the above configuration,
The feature is that the following configuration is added.

An end stopper 25 is provided at the last position of the roller table band 20. Roller table belt 20
A pair of running rails 26 are laid in parallel on each side of the guide strip 6, and the running rails 26 extend from the end stopper 25 in a drawing direction by about the entire length of a dummy bar lifter 30 described later. To a position below the casting floor 10. The position indicated by the reference numeral of the traveling rail 26 is the standby position, the reference numeral is the recovery position of the dummy bar DB, and the reference numeral is the transfer position.

Next, the dummy bar lifter 30 is shown in FIG.
A description will be given based on .about.5. FIG. 3 is a side view of the dummy bar lifter 30 taken along the center, FIG. 4 is a plan view of the dummy bar lifter 30, and FIG. 3 to 5, 31 denotes four legs, 32 denotes an upper frame, and these constitute a lifter main body. leg
Wheels 33 are mounted on the shafts 31 and are driven by a traveling drive device (not shown). In addition, as the traveling driving device, any traveling device such as a motor that rotationally drives the wheels 33 or a towing traveling device that pulls the dummy bar lifter itself can be used. On the upper surface of the upper frame 32, a motor 35, a brake 36, a speed reducer 37, which constitutes a lifting means described in the claims, and a hoisting mechanism including a winding drum 38 and a guide sheave 39 driven by these are installed. Have been. On the other hand, the sheave 41
Is rotatably supported by a bracket.
A wire rope is wrapped around the take-up drum 38 via the guide sheave 39 via the guide sheave 39, and the hanging tool 40 suspended by driving the motor 35 is moved up and down.

The hanging member 40 includes a hanging member main body 40a, a roller 42 suspended by a bracket 43 at a lower surface of the hanging member body 40a with an interval capable of holding a dummy bar DB, and a motor 44 for rotating and driving the roller 42. It is composed of The rollers 42 are arranged at the same pitch as the rollers 23 of the roller table 22. As shown in FIG. 3, when the hanging tool 40 is lowered (in a state shown in phantom lines), the rollers 42 are at the same level. , So as to be inserted between the rollers 23 in a staggered state. Therefore, when the dummy bar lifter 30 is in the recovery position shown in FIG. 2, the hanging tool 40 is lowered as shown in FIG. 3, and the roller 23 of the roller table 22 and the roller 42 of the hanging tool 40 are moved.
Rotate the dummy bar DB that has been pulled out
42 can be pulled on. Then, as shown by a solid line in FIG. 3, when the lifting tool 40 is lifted, the lifting tool 40 can be lifted while holding the dummy bar DB.

Next, the operation of storing the dummy bar DB will be described with reference to FIGS. The dummy bar lifter 30 is waiting at the standby position when not in use. At the start of casting, molten steel enters the head of the dummy bar DB, engages with the slab and is pulled out. When the slab is guided to the final guide roll segment, the dummy bar DB is separated from the slab by the separating device 7. Then, the dummy bar DB is pulled out to the collection position by being guided by the roller table 21 and rotating the roller 23 of the roller table 22. At the collection position, the dummy bar DB is lifted by the dummy bar lifter 30 as described above, and then the dummy bar lifter 30 is moved in the direction indicated by the arrow a in FIG.
And moves to the transfer position below the dummy bar hoisting machine 12. Here, the dummy bar DB is lifted from the dummy bar lifter 30 by the dummy bar hoisting machine 12 installed on the casting floor 10. The dummy bar hoisting machine 12 replaces the dummy bar DB on the dummy bar car 11, during which the dummy bar lifter 30 returns to the standby position and waits for the next use. Thus, the work of storing the dummy bar DB is completed. Next, when the dummy bar DB is used, the dummy barker 11 travels to the mold 2 and inserts the dummy bar DB into the mold 2.

As described above, according to the present invention, the dummy bar DB is transported to below the dummy bar hoisting machine 12 by the dummy bar lifter 30, so that even if the guide band 6 of the continuous casting facility is extended long, the casting floor is There is no need to lengthen 10.
For this reason, regardless of the case of remodeling or new construction, the building does not need to be remodeled and the building remains unchanged, for example, the low-height buildings 15, 17 shown in FIG. Can be used.

Next, another embodiment of the present invention will be described. The dummy bar lifter 30 may have any structural function as long as the dummy bar DB can be lifted at the collection position and transported to the transfer position. Therefore, for example, a dummy bar lifter 30 as shown in FIG. 6 may be used. In FIG. 6, reference numeral 51 denotes a screw rod, and reference numeral 52 denotes a driving device thereof. The screw rod 51 has a nut built into the base 53
54 is screwed, and an arm 55 extends from the base portion 53. When the arm 55 is moved up and down by rotating the screw rod 51, the dummy bar DB can be lifted. Reference numeral 32 denotes wheels, which are provided with a traveling drive device (not shown) for driving the wheels 32. Therefore, the dummy bar DB can be collected and stored by traveling between the collection position and the transfer position as in the above-described embodiment.

[0015]

According to the present invention, it is possible to provide a dummy bar storage device capable of extending the length of a casting facility without extending a cast floor or a tall building.

[Brief description of the drawings]

FIG. 1 is a side view of a continuous casting facility to which a dummy bar storage device according to one embodiment of the present invention is applied.

FIG. 2 is a plan view of a main part of the continuous casting facility of FIG.

FIG. 3 is a central longitudinal sectional side view of the dummy bar lifter 30.

4 is a plan view of the dummy bar lifter 30. FIG.

5 is a front view of the dummy bar lifter 30. FIG.

FIG. 6 is a front view of another embodiment of the dummy bar lifter 30.

FIG. 7 is a side view of a conventional continuous casting facility.

[Explanation of symbols]

10 Casting floor 12 Dummy bar hoisting machine 6 Guide band 7 Dummy bar separating device 20 Roller table band 23 Roller 30 Dummy bar lifter 40 Hanging tool 42 Roller DB Dummy bar

Claims (2)

(57) [Claims] 1. A guide band having a number of guide roll segments connected along a pass line of a slab drawn from a mold, a dummy bar separating device provided at a final position of the guide band, and a final position of the guide band. A roller table band formed by connecting a large number of roller tables provided so as to extend in the pull-out direction, and a dummy bar hoisting machine installed above the guide band on a casting floor installed above the guide band. A continuous casting facility having a dummy barker that travels between the mold and the dummy bar hoist on the casting floor, wherein a collection position provided at an appropriate position of the roller table band; A dummy bar lifter that travels between a transfer position that is located below the dummy bar hoisting device, and the dummy bar lifter is The dummy bar dummy bar storage apparatus that continuous casting plant, characterized in that the dummy bar which is located on the detached roller table from cast strip by disconnecting device has a lifting means for holding lifting upward. 2. The dummy bar lifter is suspended and lifted by a leg having wheels, a traveling drive device, an upper frame supported by the leg, and a hoisting mechanism installed on the upper frame. A hanging tool, a hanging tool main body, a roller attached to a lower surface of the hanging tool by a bracket with an interval capable of accommodating a dummy bar, and a motor for rotating the roller. The dummy bar storage device according to claim 1.