JP2516900Y2 - Device for casting metal in mold of continuous casting equipment - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for introducing a metal joint or the like into molten steel of a mold in a continuous casting facility.

[0002]

2. Description of the Related Art Generally, in continuous casting equipment, there is a case where a tundish is replaced and a multiple casting operation of different steel types is performed due to process restrictions or the like. In the case of such a continuous casting operation, when a tundish is exchanged, a small piece of joint metal is put into molten steel of the mold to form a shell solidified layer, or
Mixing members between different steel types are avoided as much as possible by covering the surface of the molten steel with a steel plate joint. If this joint metal is not added, the mixed portion of molten steel of different steel type becomes long (for example, 5 to 6 m) at the boundary between the preceding steel type and the following steel type, and any of the properties is not exhibited. Then, this is cut and removed. Further, when connecting the molten steel of the preceding and molten steel of the subsequent, by the joint of the small piece, after the completion of the casting of the preceding molten steel, with respect to the molten steel in the mold, to promote shell solidification and the joint of the small piece In order to accelerate the unification of the above, it is also practiced to add a cold metal product.

[0003] It is a dangerous work that a plurality of humans are usually used to put in such a jointed piece or a chilled piece, and it is a work that requires skill. The appearance was long-awaited. Therefore,
The following proposals have been made for a splicing device input device.

That is, an L-shaped carriage as viewed from the side is provided on a dedicated carriage or tundisher that runs on the casting floor, and the carriage is moved up and down by a lifting cylinder arranged in the vertical direction, and the L-shape of this carriage is used. There has been proposed a joint material charging device in which a pair of hooks that are opened and closed by a horizontally arranged clamping cylinder are provided in the projecting portion, and the hooks push the joint material into the molten steel in the mold (for example, Tokkyo 1-
No. 41423, Japanese Patent Publication No. 1-28662, etc.).

However, in the proposed fitting injection device, it is necessary to wait until the fitting pushed into the molten steel in the mold is joined in the shell solidified layer, and the casting restart for the succeeding cast piece is restarted. There was a problem that was slow.

[0006]

[Means for Solving the Problems] Therefore, the present invention was devised in order to solve such problems, and the gist of the present invention is to provide a metal loading carriage (3) running on a casting floor, An elevating carriage (17) capable of ascending and descending is provided, and a pair of clamp levers (9
A plurality of scissor-type mechanical hands (9) consisting of a,), and (9a) are arranged side by side, and each of these mechanical hands (9) grips and hangs a small piece of joint material (8) to mold (1). Of molten steel (1
0) It can be pushed in and the metal loading cart
(3) In the metal casting device in a casting mold of a continuous casting facility, which is provided with a chiller (27) for supplying a cooled metal product, the discharge port of which faces the mold (1).

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The construction of the present invention will be described in detail with reference to the embodiments shown in the accompanying drawings. 1 is a side view of an embodiment of the present invention, FIG. 2 is a plan view of FIG. 1, and FIG. 3 is a sectional view taken along line A--A of FIG.

The present embodiment is suitable for continuous casting equipment for steel consisting of a plurality of strands, and particularly for continuous casting equipment capable of changing the width of the mold during the multiple casting operation. 1
Is a mold, and its width a is, for example, 800 mm to 160
It can be changed to 0 mm. Discharging direction B of the slab on the casting floor with the mold 1 sandwiched between them (the arrow B in FIG. 1 is directed downward, but since the continuous casting equipment is a curved type, it is turned to the right sequentially from the bottom. ), The rails 2 and 2 are laid orthogonally. On this rail 2, a metal loading trolley 3 is designed to be self-propelled via wheels 4, 4, .... Although not shown, other similar carts are connected to the metal loading cart 3 so that the adjacent strands can be simultaneously worked. Further, the metal loading cart 3 is composed of four-sided frame bodies 3a, 3b ... In a plan view, and rails 5, 5 are laid on the frame bodies 3a, 3a, respectively. The following fitting and cooling metal charging device, which reciprocate on the rail 5, are provided.

That is, the joint metal charging device is mainly composed of two scissors type mechanical hands 9 for holding the joint metal 8, and the cold metal charging device is mainly composed of a hopper 27 described later. It is configured. These mechanical hands 9 are designed to grip the flange at the upper end of the joint piece 8, push it into the molten steel 10 of the mold 1 to a predetermined depth, and then release the grip. More specifically, this mechanical hand 9 has a pair of clamp levers 9a, 9a and a connecting rod 12 in which the middles of these clamp levers 9a are connected by a pin connecting portion 11.
And a gripping claw 14 connected to the upper end of the clamp lever 9a and a gripping claw 14 provided at the lower end of the clamp lever 9. The gripping claw 14 is opened and closed by the operation of the clamp cylinder 13 to form a joint. The flange portion 8a at the upper end of the hardware 8 is gripped or released. Sector gears that are engaged with each other are provided near the pin coupling portion 11 of the clamp lever 9a.

These two mechanical hands 9, 9
Are respectively supported by a pair of screw shafts 15 and 15 which are horizontally provided and in which screws are engraved in opposite directions, so that the screw shaft 15 is rotated according to the width a of the mold 1. If you do, the mechanical hand 9
Can be set at a predetermined position on the mold 1. That is, the connecting rod 12 to which the clamp lever 9a is attached by the pin connecting portion 11 is screwed to the screw shaft 15. The screw shaft 15 is horizontally supported by a projecting portion of the elevating carriage 17 via a bracket 16. The pair of screw shafts 15 are interlockingly connected to the motor 19 via the orthogonal gear unit 18.
The motor 19, the orthogonal gear unit 18, the bracket 16 and the screw shaft 15 are attached to the elevating carriage 17. And this lifting carriage 17 is
The pair of guide columns 20, 20 guides the user to move up and down.

These guide columns 20 are erected on a reciprocating carriage 21 which reciprocates in the horizontal direction. The reciprocating carriage 21 includes four-sided frame bodies 21a, 21 in plan view.
The frame 21a is provided with a beam 22 laterally. The guide pillar 20 is reinforced and supported by four stays 23 attached to the frame bodies 21a, 21a and the beam 22. An elevating motor cylinder 24 is attached above the guide column 20, and the rod 2 of the elevating motor cylinder 24 is attached.
4 a is connected to the elevating carriage 17.

Wheels 25 ... Are attached to the frame 21a of the reciprocating carriage 21, and these wheels 25 roll on the rails 5 of the metal loading cart 3.
Further, a rod of a reciprocating motor cylinder 26 attached to the metal loading carriage 3 is connected to one side of the frame 21a, and the reciprocating carriage 21 is operated by the operation of the reciprocating motor cylinder 26. It is adapted to reciprocate on the loading carriage 3.

Further, a hopper 27 for supplying a cooling metal product is attached to the reciprocating carriage 21, and its discharge port is the mold 1.
Facing up. The hopper 27 has a rectangular shape for both the inlet and the outlet, but the outlet is sized to fit the mold 1 having the maximum width. Further, a shutter 28 is provided in the hopper 27 so as to be freely inserted and removed in the horizontal direction. The shutter 28 is composed of a plurality of plates, and the shutter 28A at the central portion is integrated with the sliding plate 29. The shutters 28B on both sides are connected to the sliding plate 2.
9 are attached to each of the pins 9 via pins 30. Therefore, in the shutters 28B on both sides, only the shutters connected by the pins 30 move with the movement of the sliding plate 29, but the shutters in which the pins 30 are not inserted do not move while being closed. It is like this. The sliding plate 29 is guided by the guide member 31 and reciprocates by the shutter cylinder 32. The shutter cylinder 32 is used for the frame 2 of the reciprocating carriage 21.
It is mounted on 1a.

Next, the operation of this embodiment will be described. When the casting of the preceding molten steel 10 is completed, the tundish (not shown) is retracted. On the other hand, the two mechanical hands 9 are made to grip the flanges at the upper ends of the joint pieces 8 respectively, and granular chill pieces (not shown) are put in the hopper 27 for the amount of one-time charging. Then, after the tundish is retracted, the hardware throwing cart 3 is run on the casting floor. Next, the motor 19 is operated to rotate the screw shaft 15 to move the two mechanical hands 9 into the mold 1.
Of the reciprocating motor cylinder 26 while moving them closer to or away from each other so as to be located at a predetermined position within the width a of
The mechanical hand 9 is adjusted so as to come to the center of the mold 1. Therefore, the elevating motor cylinder 24 is extended, the elevating carriage 17 is lowered, the two mechanical hands 9 are lowered, and the lower part of each joint 8 is pushed into the molten steel 10 in the mold by a predetermined amount. The lift carriage 17 is stopped. Next, with the mechanical hand 9 gripping the metal fitting 8, the shutter cylinder 32 is contracted to operate, and the cooled metal material is put into the mold 1 to accelerate the solidification of the preceding molten steel 10 by the shell material. 8 and the preceding molten steel 10 are connected. At that time, the shutter-2 in the central part
8A and the shutter 28B, which is pin-connected to the shutter cylinder 32, are opened, so that the chilled metal article does not fall out of the mold 1. Next, after a lapse of a predetermined time, both mechanical hands 9 are opened, and the raising and lowering motor cylinder 24 is contracted to operate, whereby the mechanical hand 9 is pulled out from the mold. After that, the metal loading cart 3 is retracted. Then, a subsequent tundish for molten steel (not shown) is placed on the mold 1 and poured into the mold 1, while surrounding the metal piece 8 that was previously charged, and further, cooling the metal piece with a chilled metal piece to solidify it. Connect with the slab. Note that these operations are automatically performed.

Although the scissors type mechanical hand of this embodiment is attached to the metal loading cart, the present invention is not limited to this and may be attached to a tundisher. Further, there may be three scissor-type mechanical hands, and the number is determined by the opening area of the mold and the size of the metal joint.

[0016]

According to the present invention, a pair of clamp levers are provided.
With a scissor type mechanical hand consisting of a plurality of metal fittings that are put into the molten steel of the mold, and a hopper for cooling and supplying the metal fittings is provided in the metal input cart, the fittings are pushed into the molten steel and then cooled. The shell metal can immediately solidify the shell, improving the efficiency of operation.

[Brief description of drawings]

FIG. 1 is a side view of an embodiment of the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is a cross-sectional view of FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Mold, 3 ... Metal input cart, 8 ... Joint metal, 9 ... Mechanical hand, 9a ... Clamp lever, 10 ... Molten steel, 1
7 ... Lifting carriage, 27 ... Hopper

Claims (1)

(57) [Scope of utility model registration request] 1. A metal loading carriage (3) running on a casting floor is provided with a lifting carriage (17) capable of lifting and lowering, and a pair of clamp levers (9) is provided on the lifting carriage (17).
A plurality of scissor-type mechanical hands (9) consisting of a,), and (9a) are arranged side by side, and each of these mechanical hands (9) grips and hangs a small piece of joint material (8) to mold (1). Of molten steel (1
0) It can be pushed in and the metal loading cart
(3) A hopper (27) for supplying a cooled metal product, the discharge port of which faces the mold (1), is provided, and the metal product feeding device in a mold of a continuous casting facility is characterized.