JPH0337459B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a vertical bending continuous casting machine equipped with a dummy bar upper insertion device.

(Problems of the Prior Art to be Solved by the Invention) In a conventional vertical bending continuous casting machine, after the connection between the dummy bar and the slab passes through a straightening roll, the dummy bar is separated from the slab and lifted up with a dummy bar winch. The dummy bar is inserted into the mold from above and reused with a dummy barker, and it is necessary to provide guide rolls to transport the dummy bar to the position where the dummy bar and slab are separated. Furthermore, unlike conveying rolls for only slabs, these guide rolls must be installed in large numbers at narrow pitches (because they are link-type dummy bars), and these guide rollers have sufficient strength to withstand the passage of hot slabs. and heat resistance was required. Therefore, conventional continuous casting machine equipment has the drawback of being very expensive.

(Object of the Invention) The present invention was devised in order to solve the above-mentioned conventional problems, and the dummy bar is separated from the slab at the starting point of curvature of the slab, and the dummy bar is inserted in the middle of the slab pass line. It is an object of the present invention to provide a vertical bending type continuous casting machine equipped with a dummy bar upper insertion device adapted to be taken out from the dummy bar.

(Structure of the Invention) The present invention includes a mold, a group of guide rolls provided at the bottom of the mold and for vertically guiding a slab, a pinch roll provided at the bottom of the group of guide rolls, and a group of guide rolls provided at the bottom of the mold, In a vertical bending type continuous casting machine in which a slab pass line is formed by a straightening roll connected via a curved roller table at the bottom, the bending roll can be moved to the bottom of the pinch roll in the slab curving direction. A dummy bar table that can move forward and backward from the slab curving direction side is provided directly below the pinch roll, and on the casting floor where the mold is placed,
It is characterized by providing a dummy bow inch and a dummy barker equipped with a feeding device.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.

In the figure, 1 is a mold, 2 is a guide roll, 3 is a pinch roll, 4 is a bending roll, 5 is a roller table, and 6 is a straightening roll, which constitute a slab pass line.

The guide roll group 2 is provided at the bottom of the mold 1 and guides the slab 7 vertically. A pinch roll 3 is provided at the bottom of this guide roll group 2,
A straightening roll 6 is connected to the lower part of the pinch roll 3 via a curved roller table 5. Then, molten metal is injected from above into the cooled mold 1, and while a solidified shell is formed inside the mold 1, the slab 7 is continuously rolled from the lower end of the mold 1 along the guide roll group 2 by the pinch rolls 3. Immediately after passing through the pinch rolls 3, the slab 7 is bent horizontally by a bending roll 4 and taken out horizontally along a roller table 5, and the slab 7 is straightened horizontally by a straightening roll 6. After that, it is cut into a certain length using a cutting device (not shown).

In the vertical bending type continuous casting machine of the present invention, a bending roll 4 is suspended from the lower part of the housing of the pinch roll 3 so as to be movable in the direction of curving the slab by a hydraulic cylinder 8, and the bending roll 4 is placed directly below the pinch roll 3 to bend the slab. A dummy bar table 9 that can move forward and backward from the direction side is provided via a table support girder 10, a dummy bar winch 12 is provided on the casting floor 11 via a pedestal 13, and the mounted dummy bar 14 is inserted into the mold 1. A dummy barker 15 is provided with a feeding device for this purpose. The dummy bar table 9 is
Dolly 1 that can run on table support girder 10
A dummy bar mounting table 18 consisting of a horizontal part and a curved rising part constituted by a roller table 17, and a pinch roll 22 for braking the dummy bar are provided on the upper part of the dummy bar 6.

(Function) Dummy bar 14 placed on dummy bar car 15
is positioned by traveling on the casting floor 11, and inserted into the mold 1 and the guide roll group 2 by the feeding device of the dummy barker 15. Then, at the same time as casting starts, the driving roll 2A of the guide roll 2 pulls out the cast piece 7 in a state connected to it. The dummy bar table 9 is mounted on the pinch roll 3 so that the curved rising part of the dummy bar mounting base 18 is connected to the lower roll of the pinch roll 3.
Position and place it directly below. The tip of the dummy bar 14 is guided by the curved rising portion of the dummy bar mounting base 18 of the dummy bar table 9 and moves to a horizontal portion. After the connecting portion between the dummy bar 14 and the slab 7 passes through the lower roll of the pinch roll 3, the dummy bar table 9 is pushed to the right in FIG. 1 by the hydraulic cylinder 8 via the bending roll 4. At this time, the head 14A of the dummy bar 14
rotates counterclockwise and moves to the right as shown by the imaginary line in Figure 2, so the two are connected so that the dummy bar 14 can be separated from the slab 7 by utilizing this movement. It is preferable. For example, if a curved hole 19 is provided in the dummy bar head 14A as shown in FIG. The curved piece 20 formed on the slab 7 naturally comes out of the hole 19, and the dummy bar 14 and the slab 7 are automatically separated. When this separation is completed, the dummy bar table 9 runs on the table support girder 10 with the dummy bar 14 mounted thereon, and stops at a fixed position. During this time, the slab 7 is bent to a constant curvature by the bending rolls 4 and pulled out along the roller table 5. The dummy bar 14 is hooked at its tip by the hook 21 and rolled up to a position where it can be transferred onto the dummy barker 15 by the dummy bar winch 12, and then received by the feeding device of the dummy barker 15 and transferred onto the dummy barker 15 by the device. It is loaded and waits until the next dummy bar insertion.

(Effects of the Invention) As described above, in a vertical bending continuous casting machine, the present invention provides a vertical bending type continuous casting machine in which a slab pass line consisting of a guide roll group 2, a pinch roll 3, a roller table 5, etc. is placed from the side to a position directly below the pinch roll 3. A dummy bar table 9 is provided to receive the dummy bar 14 coming out of the pinch roll 3 at the position so as to be movable forward and backward, and a dummy bar winch 12 and a dummy bar car 1 are provided.
Since the configuration allows the use of a dummy bar lifting and insertion device such as No. 5 as is, and the number of rolls used to convey the dummy bar 14 can be significantly reduced compared to the conventional method, equipment costs can be greatly reduced.
It can also be applied to existing equipment easily and at low equipment cost.

[Brief explanation of the drawing]

FIG. 1 is a schematic side view showing an embodiment of the present invention, and FIG. 2 is a side view for explaining the operation of separating the dummy bar and the slab. 1...Mold, 2...Guide roll group (drive roll...2A), 3...Pinch roll, 4...
Bending roll, 5...Roller table,
6... Straightening roll, 7... Slab, 8... Hydraulic cylinder, 9... Dummy bar table (cart... 1
6. Roller table... 17. Dummy bar mounting stand... 18), 10... Table support girder,
11...Casting floor, 12...Dummy bar drum, 14...Dummy bar (dummy bar head...14A), 15...Dummy barker, 1
9... Curved hole, 20... Curved piece, 21... Hook, 22... Dummy bar braking pinch roll.

Claims (1)

[Claims] 1 A mold, a group of guide rolls provided at the bottom of this mold to guide the slab vertically, a pinch roll provided at the bottom of this group of guide rolls, and a roller table curved at the bottom of this pinch roll. In a vertical bending type continuous casting machine in which a slab pass line is formed by a straightening roll connected to
A dummy bar table that can move forward and backward from the slab bending direction is provided directly below the pinch roll, and a dummy bow inch and a dummy bar car equipped with a feeding device are provided on the casting floor where the mold is placed. A vertical bending continuous casting machine equipped with a distinctive dummy bar upward insertion device.