JPS6320448Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for removing bare metal from a tundish, and more particularly to a device for removing bare metal remaining in a tundish used in continuous casting operations.

A tundish dish metal removal device has been developed, which is equipped with a lifting mechanism that lifts an inverted tundish dish and holds it in a horizontal position, and a push rod that is inserted into the nozzle hole of the tundish dish and removes the metal from the inner surface of the tundish dish. It is published in Publication No. 57-36060. Although this type of conventional tundish metal removal equipment greatly mechanizes the work and contributes to improved efficiency and cost savings, it has not been designed for a specific tundish with predetermined dimensions and capacity. Generally, it cannot be used with tundishes of different sizes and capacities. On the other hand, not only is there a tendency for the capacity and dimensions of the tandates used in continuous casting plants to gradually increase in size, but also there is a tendency for large numbers of tandates produced from several continuous casting facilities operating within a steelworks to be underwritten at once. When performing a removal process, it is inevitable that the capacity and dimensions of the tundish will change significantly. During bullion removal work, it is not practical to prepare multiple types of bullion removal equipment to accommodate differences in the capacity and dimensions of tundishes, but it is possible to process a large number of tundishes with different capacities and dimensions in one go. It is obvious that it is advantageous to use one or a small number of tundish processing devices that are flexible or reversible. The present invention is useful for solving this type of problem that occurs in tandem ingot removal work in continuous casting plants.

The object of the present invention is to provide a highly convertible tundish metal removal device capable of receiving and processing all of the many tundishes of different capacities and sizes used in a continuous foundry.

According to the present invention, the first train running on the track in the direction perpendicular to the vertical center plane of the tandem
a lifting mechanism consisting of a truck, two pairs of lifting rods with claws that hang down from the first truck and grasp the tundish in an inverted position from both sides at positions adjacent to both ends, and a lifting mechanism that is freely reciprocated in the direction of the longitudinal center line of the tundish. In the tundish dish metal removal device, the tundish dish lifting mechanism is equipped with an extrusion rod that is suspended from a second dolly mounted on the first dolly and inserted into a nozzle hole of the tundish dish in an inverted position. A first pair of lifting rods 3a and 3b are arranged on both sides of the tundish and hang from a pair of sliders attached to the first truck adjacent to one end so as to be slidable in the width direction of the tundish. A second pair of lifts are suspended from a composite slider attached to the first truck adjacent to the opposite end of the first truck so as to be slidable in the width direction and the length direction of the tundish, respectively, and are disposed on both sides of the tundish. The extrusion rods 5a and 5b each reciprocate in the width direction of the tundish.
A tundish metal removal device is obtained, which is characterized in that it is attached to a third truck mounted on a truck.

Now, an embodiment of the apparatus of the present invention will be described below with reference to the accompanying drawings.

Referring to Figures 1 and 2, there is shown a first bogie 61 running along a track 66 on the structure in a direction perpendicular to the longitudinal center plane of the tundish placed horizontally, and a tundish in an inverted position hanging from the first bogie. A lifting mechanism consisting of two pairs of lifting rods 62a, 62b, 62a', 62b' with claws that grasp W from both sides at positions adjacent to both ends, and a first truck that reciprocates in the direction of the longitudinal center line of the tundish W. The second installed on 61
A conventional bare metal removal device 60 for a tundish W is shown, which is equipped with an extrusion rod 65 suspended from a cart 67 and inserted into the nozzle hole 49 of the tundish W in an inverted position. The conventional device 60 has two pairs of lifting rods 62a, 62 in accordance with the length l, width b, depth d, etc. of the specific tundish W to be processed.
b, spacing between 62a' and 62b', each pair of lifting rods 62a
and 62b, and the distance between 62a' and 62b',
In addition, since the length of each lifting rod is fixedly determined, it is difficult to accept and hold tundishes W of different sizes, and the actual situation is that the use of the lift rod is extremely limited.

3 and 4 have two nozzles 49 placed on the vertical center line passing through the center of gravity G, and trunnions 5 at both ends.
1 is shown.

Figures 5 and 6 show an unusually shaped long and thin tundish W2 whose central part is bulged in the horizontal direction, and which is equipped with a large number of nozzles 49 on the vertical center line separated from the center of gravity G, and has a large number of nozzles 49 in terms of capacity and dimensions. This is different from the tundish W1 shown in Figures 3 and 4. The present invention contemplates a bare metal removal device that can process a large number of different types of tundishes with significantly different capacities and dimensions.

Figures 7, 8, 9, 10, 11, and 12 show the device 10 of the present invention, which rolls along a track 35 on a frame 34 in a direction perpendicular to the vertical center plane of a tundish W placed horizontally. A first truck 1 having wheels 33, and two pairs of lifting rods 3a, 3b, 4a with claws that hang from the first truck 1 and grip the tundish W in an inverted position from both sides at positions adjacent to both ends.
4b, and a nozzle hole 49 of the tundish W in an inverted position, suspended from the second carts 41, 41' mounted on the first cart 1 so as to be able to reciprocate in the direction of the longitudinal center line of the tundish W. It is the same as the conventional bullion device 60 in that it includes extrusion rod devices 5a and 5b inserted into the base metal device 60.

The truck 1 is made of an elongated beam having a gap 14 in the center of its width, and the gap 14 extends along the length of the truck 1. 15a and 15b indicate vertical walls defining the void 14. As shown in FIG. 7, after the lifting mechanism 2 on the trolley 1 lifts the tundish W which has been inverted by the reversing mechanism 50 and carries it to the bullion removal work area,
Inserting the cutting edges 43 of the pushing rod devices 5a, 5b into the nozzle hole 49 of the tundish W to remove the metal from the tundish W is also the same as in the conventional device.

In the device 10 of the present invention, one pair of lifting rods 3a, 3b of the lifting mechanism 2 is arranged at a fixed position adjacent to the left end of the truck 1, and the lifting rods 3a, 3b are spaced between each other in the width direction of the tundish W. interval d (8th
The distance d between the lifting rods 4a, 4b in the width direction of the tundish W is adjusted at a position where the other pair of lifting rods 4a, 4b is adjacent to the right end of the truck 1. In addition to being able to adjust the distance S in the length direction of the tundish W between one pair of lifting rods 4a, 4b and another pair of lifting rods 3a, 3b (see Fig. 7). Furthermore, the pushing rod devices 5a and 5b are configured so that their positions can be adjusted in the width direction of the tundish W (see FIG. 10).

1 located at the left end of the trolley 1 as shown in FIG.
The pair of lifting rods 3a and 3b (FIG. 7) each have a vertical tubular member 16, such as a square tube, attached to the trolley 1.
a, 16b, and are connected to driving lifting cylinders 20a, 20b, respectively. Washers 17a and 17b are fixed to the upper ends of the tubular members 16a and 16b, respectively.

Sliders 6a, which hold lifting cylinders 20a, 20b, respectively, are provided on the upper surfaces of the washers 17a, 17b.
6b is seated so as to be slidable in the width direction of the tundish W. 19a and 19b are washers 17 respectively
a, 17b, and sliders 6a, 17b, respectively.
The drive cylinder connected to 6b is shown.
The tubular members 16a and 16b attached to the trolley 1 are also provided with washers 17a' and 17b' at their lower ends, respectively, and sliders 6a' and 6b' for holding the lifting rods 3a and 3b are provided on the lower surfaces of these washers, respectively. Seated. Further, drive cylinders 19a', 19b' connected to sliders 6a', 6b' are attached to washers 17a', 17b', respectively. Therefore, by the operation of these drive cylinders 19a, 19b, 19a', 19b', the sliders 6a, 6b, 6a', 6b' move against the sliding surfaces 24 on the washers 17a, 17b, 17a', 17b', respectively.
The distance d (FIG. 8) between the pair of lifting rods 3a and 3b can be adjusted as desired by sliding in the width direction of the tundish W. Each lifting rod 3a, 3b
At the bottom of each is an inverted tandaitsu W.
Hook-shaped claws 21a and 21b that engage with the side edges of are rotatably attached. Reference numerals 23a and 23b indicate drive cylinders that rotate these claws around pins 22a and 22b, respectively. Each lifting rod 3a, 3
b has a pair of upright rods 32a and 32 at the top, respectively.
a', 32b, 32b', and these upright rods are slidably fitted into tubular guide members 18a, 18a', 18b, 18b' attached to sliders 6a, 6b, respectively.

As shown on the right side of Fig. 7, another pair of lifting rods 4
a, 4b are connected to the lower ends of lifting cylinders 30a, 30b attached to composite sliders 7a, 7b seated on the upper surface of the truck 1, respectively. The composite sliders 7a and 7b are attached to the carriage 1 so as to be able to slide both in the width direction and the length direction of the tundish W. Specifically, lower sliding members 8a and 8b that slide in the longitudinal direction XX of the tundish W are attached to the upper part of the liner 36 attached to the upper surface of the truck 1. 28a and 28b indicate sliding surfaces of the lower sliding members 8a and 8b. drive cylinder 2
7a, 27b connects the operating end to the lower sliding member 8a, 8b.
Connect it to and make it reciprocate in the XX direction. The upper sliding members 9a and 9b are respectively the lower sliding members 8.
It is attached to the upper surface of the tundish W so that it can slide back and forth in the width direction of the tundish W. 29
a and 29b are upper and lower sliding members 9a and 9, respectively.
b shows the sliding surface between 8a and 8b. As shown in FIG. 11, a pair of drive cylinders 26a, 2 are installed on both sides of the truck 1 in the width direction of the tundish W.
6b are respectively connected to upper sliding members 9a and 9b, and the latter are reciprocated in the width direction of the tundish W. The upper and lower sliding members 8a, 8b, 9a, 9b constitute composite sliders 7a, 7b of the present invention. Therefore, the tundish W that the trolley 1 is trying to lift
The distance S between one pair of lifting rods 3a, 3b and the other pair of lifting rods 4a, 4b is determined according to the length l of , as well as the distance d between the other pair of lifting rods 4a and 4b. Further, other composite sliders 7a', 7b' having a structure symmetrical to the composite sliders 7a, 7b are attached to the lower surface of the truck 1, and cooperate with the upper composite sliders 7a, 7b. The pair of lifting rods 4a and 4b are held at desired positions. In addition, upright rods 31a, 31b, 31a', 31 for guiding the lifting movement are attached to the upper ends of each lifting rod 4a, 4b.
b' and the structure of the hook-shaped pawl attached to the lower end are the same as those of the lifting rods 3a and 3b on the left side of FIG.

As shown in FIGS. 7, 9 and 10, the push rod device 5
a and 5b are longitudinal tracks 44 provided at the lower end of the longitudinal beam 40 attached to the bogie 1 below the gap 14.
A third truck 11 is mounted on the upper surface of the second truck 41 which runs thereon so that it can reciprocate in the width direction YY of the tundish W.

A drive motor 13 mounted on a frame 45 attached to the second truck 41 is connected to the wheels 12 of the third truck 11 via a transmission mechanism such as an endless belt 48, a worm 46, and a worm wheel 47. An extrusion blade 43 is provided inside the extrusion rod devices 5a and 5b.
The extrusion blade 43 has an upper end connected to the vertical drive cylinder 42 and a lower end protruding from the lower ends of the extrusion rod devices 5a and 5b. Therefore, the pushing rod devices 5a and 5b can be moved in the width direction YY of the tundish W by the third cart 11, and can follow the position of the nozzle hole 49 of the tundish W being lifted. b at the lower end of FIG. 10 indicates the position adjustment range of the extrusion rod cutting edge 43.

As described above, according to the present invention, the distance S between the two pairs of lifting rods 3a, 3b and 4a, 4b can be adjusted, so that the distance S can be adjusted according to the difference in length of the tundish W to find the optimum position. It is possible to lift the Tandite Shuttle W with this button. Furthermore, the distance d between each pair of lifting rods 3a, 3b and between 4a and 4b can be changed depending on the width of the tundish W to be lifted. Furthermore, since the ejecting rod devices 5a and 5b can change their positions in the width direction YY of the tundish W, the ejecting blade 43 can be inserted into the nozzle hole 49 at any position on the bottom surface of the tundish W. .
Therefore, if a bare metal removal device is manufactured to match the maximum size of tundishes W used in a continuous casting factory, all tundishes of different sizes can be processed with one device.

[Brief explanation of the drawing]

FIG. 1 is a side view showing a conventional device, FIG. 2 is an end view of the device shown in FIG. 1, and FIG. 3 is a plan view showing an example of a tundish processed by the device of the present invention.
Figure 4 is an end view of the tundish tray shown in Figure 3;
The figure is a plan view showing a tundish dish different from that shown in Fig. 3, and Fig. 6 is an end view of the tundish dish shown in Fig. 5.
7 is a side view showing the device of the present invention, FIG. 8 is a sectional view taken along the line - of FIG. 7, FIG. 9 is an enlarged detailed view of a part of the device of FIG. 7, and FIG. FIG. 11 is a plan view of the device shown in FIG. 7, and FIG. 12 is an end view of the device shown in FIG. 7. 1... First truck, 2... Lifting mechanism, 3a, 3b
... Lifting rod, 4a, 4b ... Lifting rod, 5a, 5b
...Extrusion rod, 6a, 6b...Slider, 7a, 7b
... Composite slider, 8a, 8b ... Lower sliding member,
9a, 9b... Upper sliding member, 10... Device of the present invention, 11... Third truck, 12... Wheel, 13...
...Drive motor, 14...Gap, 15a, 15b...
... Longitudinal wall, 16a, 16b ... Tubular member, 17
a, 17b... washer, 18a, 18b... guide member, 19a, 19b... drive cylinder, 20
a, 20b... Lifting cylinder, 21a, 21b
...Claw, 22a, 22b...Pin, 23a, 23
b... Drive cylinder, 24... Sliding surface, 25...
...Drive cylinder mounting base, 26a, 26b...Width direction drive cylinder, 27a, 27b...Length direction drive cylinder, 28a, 28b...Sliding surface,
29a, 29b...Sliding surface, 30a, 30b...
Lifting cylinder, 31a, 31b... upright rod for guide, 32... top, 33... wheel, 34... frame, 35... track, 36... liner, 40...
Longitudinal beam material, 41... Second truck, 42... Extrusion cylinder, 43... Extrusion blade, 44... Track, 45...
... Frame, 46 ... Worm, 47 ... Worm foil, 48 ... Endless belt, 49 ... Nozzle hole, 50 ... Reversing device, 60 ... Conventional device.

Claims (1)

[Scope of utility model registration request] a first truck that runs on a track in a direction perpendicular to the vertical center plane of the tandyship placed horizontally;
A lifting mechanism consists of two pairs of lifting rods with claws that hang down from the truck and hold the tundish in an inverted position from both sides at positions adjacent to both ends, and the tundish is mounted on the first truck so as to be able to reciprocate in the direction of the longitudinal centerline of the tundish. The tundish lifting mechanism 2 is located adjacent to one end of the first cart, and is equipped with an extrusion rod that is suspended from a second cart and inserted into a nozzle hole of the tundish in an inverted position. Suspending from a pair of sliders attached to the first truck so as to be slidable in the width direction of the tundish, the first pair of lifting rods 3a and 3b are arranged on both sides of the tundish and are adjacent to the opposite end of the first truck. and a second pair of elevating rods 4a and 4b, which are arranged on both sides of the tundish and are suspended from a composite slider attached to the first truck so as to be slidable in the width direction and length direction of the tundish, respectively. forced,
A metal removal device for a tundish, wherein the push rods 5a and 5b are respectively attached to a third truck 11 mounted on the second truck so as to be able to reciprocate in the width direction of the tundish.