JPH054176B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Related Industrial Field) The present invention relates to a dummy bar recovery device in a vertical continuous casting facility.

(Prior Art) The present applicant filed a patent application (hereinafter referred to as the "prior invention") for a "vertical bending type continuous casting machine equipped with a dummy bar upward insertion device" on March 29, 1982 (patent application filed in 1982).
(See No. 53297). This will be briefly explained with reference to FIG.

1 is a mold, 2 is a guide roll, 3 is a pinch roll, 4 is a bending roll, 5 is a roller table, 6 is a straightening roll, molten metal is injected from above into the cooled mold 1, and the mold 1
While forming a solidified shell inside, the cast slab 7 is continuously vertically pulled out from the lower end of the mold 1 along the guide rolls 2 by the pinch rolls 3, and immediately after passing through the pinch rolls 3, it is pulled out by the bending roll 4
The slab 7 is bent to a constant curvature and taken out along the roller table 5, straightened by the straightening roll 6 in a horizontal state, and then cut into a constant length by a cutting device (not shown).

A bending roll 4 is suspended from the lower part of the housing of the pinch roll 3 by a hydraulic cylinder 8 so as to be movable in the direction of bending the slab. pinch roll 3
A dummy bar table 9, which can be moved forward and backward from the slab bending direction, is provided directly below the slab through a table support girder 10. Casting floor 1
A dummy bar winch 12 is provided on the mold 1 via a pedestal 13, and a dummy bar car 15 is provided with a feeding device for inserting the mounted dummy bar 14 into the mold 1. The dummy bar table 9 has a table support girder 1
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 19 for braking the dummy bar are provided on the upper part of the trolley 16 which can run on the ground.

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 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 positioned directly below the pinch roll 3 so that the curved rising portion of the dummy bar mounting table 18 is connected to the lower roll of the pinch roll 3. Dummy bar 14
The tip of the dummy bar table 9 is guided by the curved rising portion of the dummy bar mounting base 18 and moves to the 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 FIG. 6, so the dummy bar 14 can be separated from the slab 7 by utilizing this movement. The two are connected.

For example, as shown in FIG.
A curved hole 20 is provided in A, and a curved piece 21 is provided on the side of the slab 7.
is formed, and as the dummy bar table 9 moves, the curved piece 21 formed in the slab 7 naturally comes out from the curved hole 20 provided in the dummy bar head 14A, and the dummy bar 14 and the slab 7 are automatically separated. It is done. 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 tip of the dummy bar 14 is hooked by the hook 21, and the dummy bar winch 12
5, and then received by the feeding device of the dummy barker 15 and loaded onto the dummy barker 15 by the device,
Wait until the next dummy bar is inserted.

As described above, according to the prior invention method, when recovering the dummy bar, 1. A separating device between the slab and the dummy bar head is required.

2. A dummy bar transport platform is required to transport the separated dummy bars.

3. A driving pinch roll for towing the dummy bar is required on the dummy bar carrier.

(Problems to be Solved by the Invention) In a vertical continuous casting equipment, in which the dummy bar is inserted from above, the work of collecting and inserting the dummy bar can be easily performed, and the equipment necessary for this work is provided. The goal is to simplify.

(Means for Solving the Invention) In a vertical continuous casting equipment, the lower end link of a dummy bar having a link chain structure is connected to a dummy bar collection hook that can be pulled up on a roller table tilted upward at an angle θ°, and pulled up onto a casting floor. It is characterized by being able to be lifted by a traveling crane.

(Embodiments of the invention) Examples of the invention will be described with reference to FIGS. 1 and 2. 1 is the mold, 2 is the guide roll, 2A
is the driving roll. Reference numeral 26 denotes a non-driven roller table for guiding the dummy bar, which is inclined upward at an angle θ° (3 to 30°). Reference numeral 22 denotes a dummy bar recovery hook, one end of which hooks the lower end of the dummy bar 23, and the other end of which is pulled by a winch 25 via a wire rope 24. 27 is a crane running on the casting floor 11, 28 is a crane 2
It is a crane hook that can be hung from 7. Note that the crane 27 is for operating the continuous casting equipment, and the dummy bar is not exclusively for hanging.

FIG. 2 shows the connecting portion between the dummy bar 23 and the slab 7. The dummy bar 23 is in the form of a link chain as shown in FIG.
a has a hook-shaped portion 23b, and the hook-shaped portion 23b
is adapted to engage with the lower end of the slab 7 and pull it downward. Each link is bendably connected by a link pin 29, and the lowermost link 23c has a tip 22a of the dummy bar collection hook 22.
A pin 30 is attached which engages with. Further, a hooking rod insertion hole 23d is bored in the dummy bar head 23a in parallel with the link pin 29.

(Function) The dummy bar 23 is inserted using a crane 27 as shown in FIG. That is, the suspension position is determined and the suspension is suspended within the mold 1 and guide roll 2. Then, the casting star is simultaneously pulled out downward while being connected to the slab 7 by the guide roll 2 and the drive roll 2A.

After exiting the slab guiding device, a dummy bar recovery hook 22 is placed on standby at the lower end of the slab guiding device.
The tip 22a of the dummy bar is the lowest link 23 of the dummy bar.
It engages with the pin 30 of c. Therefore, winch 25
When driven, the dummy bar collection hook 22 is pulled obliquely upward on the roller table 26 via the rope 24.

When pulled up a predetermined distance, the hooking rod 2 is inserted into the insertion hole 23d of the dummy bar head 23a.
3e, and hook the crane hook 28 onto the hooking rod 23e to lift the dummy bar 23.

(Effects of the Invention) 1. The equipment is extremely simple because a non-driving roller table, a dummy bar collection hook, and a hoisting winch are all that is required for separating and collecting the slab and dummy bar.

2. Since the guide roller table is tilted at 3° to 30°, the space under the roller table can be used effectively.

3. Since the guide roller table is tilted, the dummy bar collecting hook falls to the dummy bar receiving position by its own weight, and no other conveying device is required.

4. The inclination of the guide roller table helps the natural separation of the dummy bar. That is, as shown in Fig. 2, the head 23a of the dummy bar 23 is pulled to the right in the figure by the link in front of it, and in other words, the slab and the dummy bar head are separated by this tension, and natural separation occurs smoothly. Unlike the previous invention, there is no need for a separating device such as a bending roll.

[Brief explanation of drawings]

FIG. 1 shows a dummy bar recovery device according to the present invention. FIG. 2 shows details of the connection between the slab and the dummy bar. Figure 3 is a front view of the dummy bar. Figure 4 is also a side view. FIG. 5 shows the dummy bar recovery device of the previous invention. FIG. 6 is a detailed view of the connecting portion between the slab and the dummy bar in the previous invention. In the figure, 1...Mold, 2...Guide roll, 2A...Drive roll, 3...Pinch roll, 22...Dummy bar collection hook, 22a...
Tip hook, 23...Dummy bar, 23a...Dummy bar head, 23b...Hook-shaped portion, 23c...
Lowermost link, 23d... Hooking rod insertion hole, 23e... Footing rod, 24... Wire rope, 25... Winch, 26... Roller table for guiding dummy bar, 27... Crane, 28... Crane hook, 29 ...link pin, 30...pin.

Claims (1)

[Claims] 1 In a vertical continuous casting facility, the lower end link of a dummy bar with a link chain structure is connected to a dummy bar collection hook that can be pulled up on a roller table tilted upward at an angle of θ°, and then pulled up by a crane traveling on a casting floor. A dummy bar recovery device for a vertical continuous casting facility, characterized in that it can be lifted by lifting the dummy bar.