JPH10296415A - Casting line of rolling roll - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the pouring yield in the casting, and to facilitate the assembly and disassembly of a mold by loading the mold in which a lower die, a body die, and an upper die are set in an outer sleeve on a rotary table, and traveling a pouring device on a rail arranged on the upper part of the line. SOLUTION: An outer sleeve 21 of a mold 2 is loaded so as to be agreed with the axis of rotation of a rotary table 1. The outer sleeve 21 is cylindrical, and its lower part is covered with a bottom plate 211. A lower die 22, a body die 23, and an upper die 24 are stacked in the outer sleeve 21, and tightened to the outer sleeve 21 at an upper part of the outer sleeve by a cotter pin 25. A ladle is loaded on a pouring device, and the pouring device traveled on a rail, and stopped at a first casting device of the line of the casting device. When the rotation of the mold 2 is stationary, the ladle of the pouring device is inclined and the molten metal poured into the mold 2 from an upper mouth of the upper die 24. The heat insulation material is charged from an heat insulation material charging device to a part from the upper mouth of the mold 2 to a riser part.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a casting line for molten metal such as steel, and more particularly to a casting line suitable for casting a roll for rolling such as a ductile cast iron roll.

[0002]

2. Description of the Related Art As a conventional casting method using a material such as a ductile cast iron roll which may generate dross at the time of casting, there is a bottom casting stationary casting method.

FIG. 10 is a cross-sectional view of a casting mold 9 used in the lower casting stationary casting method. An upper die 92 and a lower die 93 for casting the journal of the roll are provided above and below a die 91 for forming the body of the roll. The upper die 92 and the lower die 93 are made of sand or steel inside a steel sleeve. The molds 921 and 931 are made of pottery, and the mold 91 of the body is coated on the inner surface. The lower mold 93 is large for attaching a gate mold 94, and a gate mold 94 and a funnel mold 95 are attached thereon.

A so-called weir portion 932 whose gate faces the lower mold cavity is connected in a manner close to a tangent to the inner peripheral surface of the lower mold cavity. The molten metal injected into the funnel enters the cavity of the lower mold 93 through the sprue, and the molten metal rotates while rotating the cavity of the lower mold 93, the cavity of the mold 91,
It accumulates in the cavity of the upper mold 92. Since the molten metal is rotating, even if dross is generated, the dross has a lower specific gravity than the molten metal, so that the dross gathers at the center of the roll and floats above the upper mold 92. Therefore, even if the molten metal is cooled and solidified, the dross is not caught in the inside or the surface of the roll, and the dross is separated.

[0005]

In such a lower casting stationary casting method, a long sprue having a length equal to the length of a roll is used, so that the molten metal used for casting includes a roll portion and a sprue portion. It is necessary only to cut off the gate after casting. That is, the casting injection yield was poor.

As the mold 9, a lower mold 93 having a lower portion of a gate and a cavity of a lower journal is first installed at a casting position, and a mold 91 is mounted and fixed thereon with bolts or clamps. An upper mold 92 is fixedly mounted on the upper part.
Further, a sprue mold 94 is mounted and fixed on the sprue portion of the lower mold 93 by bolts or clamps, and a funnel mold 95 is mounted and fixed thereon. Assembly of such molds must be performed at the casting site. In order to cast a roll having a length of about 2 m, a lower mold 93 is usually installed at the bottom of a pit having a depth of about 3 m, and the assembling work of the mold 9 is performed in the pit. For this reason, the assembling work took a long time in a place where the working environment is not very good, and thus an improvement has been desired.

[0007] Dismantling after casting has been more difficult than assembling. After the gate section 932 of the gate is broken and divided into a gate and a main body, the gate 94, the sleeves of the lower mold 93 and the upper mold 92, and the mold 91 are removed. These operations are performed at or near the casting place. The dismantling was difficult.

In view of the above, the present invention provides a casting line that improves casting casting yield, facilitates assembly and disassembly of the mold, shortens assembly / disassembly work time, and ensures safety. The purpose is to do.

Another object of the present invention is to provide a casting line that improves the workability of casting.

[0010]

According to the present invention, there is provided a roll casting line for rolling according to the present invention, which comprises a line of a casting device in which a plurality of roll casting devices are arranged, wherein the roll casting device is installed in an outer sleeve. The mold with the mold, body mold, and upper mold set is placed on the turntable, and the rail for the pouring device placed at the top along the line of this casting device and the rail It is characterized by having a pouring device that can run and stop pouring at a position corresponding to each roll casting device and pouring.

Preferably, the line of the casting apparatus is in a pit underground, and the rail of the pouring apparatus is on the floor. The pouring device is a traveling cart with a positioning mechanism, a tilting table mounted on the traveling cart and capable of mounting a pouring ladle, and a pouring ladle placed on the tilting table, A clamping mechanism provided on the tilting table for fixing the pouring ladle, a tilting mechanism for tilting the tilting table, a mechanism for measuring the weight of the pouring ladle, a mechanism for measuring the tilting angle of the tilting table, It is desirable to have a mechanism for controlling pouring based on the measured weight of the pouring ladle and the tilt angle of the pouring ladle.

In the casting line of the present invention, when the casting apparatus line is run on a rail provided across a pit provided therein, a plurality of casting apparatuses are installed in the pit. If it is running on the rail, it stops at each casting device, is positioned there, performs pouring, and when the casting of that casting device is completed, it travels to the next casting device. Stop.

Further, the tilting table of the pouring device is tilted around a tilting axis provided on the traveling carriage by a mechanism for controlling the tilting angle of the tilting table to control the pouring speed. The mechanism for controlling the tilt angle controls the pouring speed by feedback control.

Preferably, the pouring device is provided with a funnel so that the molten metal is guided to the mold when the pouring ladle is tilted. Further, it is preferable that the swash stop mechanism projects from the tilting axis of the tilting table toward the pouring ladle. This spar stop mechanism has an arm that can turn around the tilting center of the tilting table, and this arm can turn between the pouring ladle charging position and the raising position. Another arm that can rotate around the free end of the arm is attached, and the tip of the arm can be attached with a slash-stop member made of a piece of wood or the like.

[0015] Further, it is preferable that a device for charging a heat retaining agent is provided on the traveling vehicle, facing the tilting table of the pouring ladle. This heat retaining agent charging device includes a magazine having a plurality of rooms for holding the heat retaining agent, an input port opened under the magazine, a mechanism for rotating and sliding each room of the magazine above the input port, Has a chute that guides from the inlet to the mold. It is desirable to match the number of magazine rooms with the number of casting devices.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the casting line of the present invention,
An elongated pit 3 is formed on a floor where a roll is to be cast as shown in a longitudinal sectional view in FIG. 1 and a transverse sectional view in FIG. 2, and a line in which a casting device 4 for a roll is arranged is installed therein.
A rail 5 is laid on the floor above the pit 3 in parallel with the line of the casting device 4, and the pouring device 6 runs on the rail 5. In this figure, ten casting devices 4 are installed in the pit 3, and the turntable 1 is placed below each casting device 4.
On top of this, a mold 2 in which a lower mold, a body mold, and an upper mold are inserted and stacked in an outer sleeve is set.

FIG. 3 is a sectional view of the casting apparatus used here. Numeral 1 denotes a rotary table on which the mold 2 is placed and which rotates in the horizontal direction. The outer sleeve 21 is mounted so that its axis coincides with the rotary axis of the rotary table 1. The outer sleeve 21 has a cylindrical shape, and its lower part is closed by a bottom plate 211. The lower mold 22, the body mold 23, and the upper mold 24 are stacked in this, and the cotter pin 2 is placed on the upper part of the outer sleeve 21.
5 is fastened to the outer sleeve 21. The lower mold 22 forms a cavity of a journal portion of a roll with a sand mold 222 in a cylindrical steel sleeve 221, and an upper mold 24.
Similarly, a cavity is formed by a sand mold 242 in a steel sleeve 241. The body mold 23 also has a sleeve shape, and its inner surface is coated with a mold. Upper mold sleeve 241, trunk mold 23, lower mold sleeve 221
Both are large enough to enter the outer sleeve 21. An opening 212 is provided at the center of the bottom plate 211 of the outer sleeve 21 and at the sleeve 221 of the lower mold 22 thereof.
Used to dismantle rolls after casting.

Sand molds 242 and 222 are provided inside the steel sleeves 241 and 221 of the upper mold 24 and the lower mold 22, respectively.
An upper mold 24 and a lower mold 22 are prepared. Further, a mold is applied to the inner surface of the body mold 23 and dried. A lower mold 22, a body mold 23 in an outer sleeve 21 with a bottom plate 211,
The upper die 24 is inserted in the order of the upper die 24 and stacked, and the cotter pin 25 is inserted into a hole formed in the upper end of the outer sleeve 21 to fix the upper end of the upper die 24 to the outer sleeve 21. Since the mold 2 assembled in this manner can have the outside of the outer sleeve 21, it can be carried by a crane, a forklift, or the like. Therefore, the mold 2 assembled at the preparation place of the mold is easily transported to the casting place, and the rotating shaft and the outer sleeve 21 are placed on the turntable 1 installed at the casting place.
Place so that the axes of are aligned. The turntable 1 has a drive shaft of a motor connected to a turn shaft below the turntable 1, and the turntable 1 and the mold 2 can be rotated by driving the motor.

As the pouring device 6 used here, a device shown in a side view in FIG. 4 is suitable. Reference numeral 61 denotes a traveling carriage having a positioning function. Tilt table 62 on traveling cart 61
The pouring ladle 63 is placed on the tilting table 62. Further, the tilting table 62 is provided with a clamp mechanism 621, and the pouring ladle 63 is fixed to the tilting table 62 so that the pouring ladle 63 can be tilted together with the tilting table 62. A mechanism 65a for measuring the weight of a pouring ladle 63 in which molten metal is stored on the traveling carriage 61
And a mechanism for measuring the tilt angle of the tilt table 62. A mechanism for controlling the tilt angle of the tilting base based on the measured weight of the pouring ladle and the tilt angle of the pouring ladle (66 in FIG. 7).
1) is provided in the control section (66 in FIG. 7), and controls the tilting mechanism 64 of the tilting table to adjust the pouring speed and the pouring amount.

The pouring ladle 63 containing the molten metal is placed on the pouring device 6, and the pouring device 6 travels on the rail 5 and stops at the first casting device 4 in the line of the casting device. The power of the motor of the turntable 1 of the first casting apparatus 4 is turned on, and the pouring ladle of the pouring apparatus 6 is tilted in a state where the rotation of the casting mold 2 is in a steady state. Pour the water. When the pouring amount reaches the predetermined amount, the pouring ladle 63 is returned to its original position and the pouring is stopped. The drive of the turntable 1 is stopped before the molten metal in the mold 2 completely solidifies, but the mold 2 rotates by inertia for several minutes and stops. The heat retaining agent is supplied from the heat retaining agent supplying device 69 attached to the pouring device 6 to the feeder portion from the upper end of the mold 2.
The pouring device 6 is run and stopped at the second casting device 4, and casting is performed in the same manner. Casting is performed in the same manner for the third casting device and thereafter. When the molten metal in the pouring ladle 63 is exhausted, the empty pouring ladle is removed, replaced with a pouring ladle containing molten metal, and casting is continued.

In the mechanism for controlling the tilting angle of the tilting table, the rate of change from the measured weight of the pouring ladle is calculated as the pouring speed to the mold. The tilting mechanism 64 is controlled so that the pouring speed becomes a predetermined speed. The sum of the pouring amount into one mold, that is, the amount obtained by subtracting the weight of the pouring ladle at that time from the weight of the pouring ladle at the time of starting pouring, approaches the target pouring amount, and from the target pouring amount, When a predetermined amount is reached, the tilt of the pouring ladle is returned to stop pouring.

The pouring device 6 is preferably provided with a funnel 67 so that the molten metal is guided to the mold when the pouring ladle 63 is tilted. In addition, it is desirable that the swash stop mechanism 68 protrudes from the tilting shaft 622 of the tilting table 62 toward the pouring ladle 63. As shown in a partial cross-sectional side view in FIG. 5, the spar stop mechanism 68 has an arm 681 that can rotate around the tilt center of the tilting table 62, and the arm 681 is put into the pouring ladle 63. It can move between the position and the lifting position. Another arm 682 that can rotate around the free end of the arm is attached, and a slash-stopping member 683 made of a piece of wood or the like is attached to the tip of the arm 682. When the arm 681 is at the raised position, the slag stop member 683 is separated from the pouring ladle. When the arm 681 is set at the pouring position to the pouring ladle, the member 683 for preventing slag enters the pouring ladle 63 and floats on the upper surface of the molten metal, and the pouring ladle 63 is tilted to move the molten metal surface. Since the slag stop member 683 is floating at the pouring port 631 of the pouring ladle, the slag is prevented from coming out from the pouring port 631.

Further, it is preferable that a heat retaining agent charging device 69 is provided on the traveling vehicle 61 so as to face the tilting table 62 of the pouring ladle 63. FIG. 6 shows a side view of a main part of the heat retaining agent charging device 69. Since the heat insulating agent is put into the hot water of the mold, it is preferable that the heat insulating agent is dropped into the funnel 67 for pouring and guided to the mold. The heat retaining agent charging device 69 includes a magazine 691 having a plurality of rooms for retaining the heat retaining agent, and a charging port 69 opened under the magazine.
2, a mechanism for rotating and sliding each room of the magazine above the inlet, and a chute 6 for guiding the heat retaining agent from the inlet to the mold.
I have 93. It is desirable that the number of rooms of the magazine 691 be adjusted to the number of casting devices.

The control of the pouring device will be described with reference to FIG. This is a control block diagram focusing on the control unit. In FIG. 7, the control unit 66 of the pouring device is:
It is connected to a host computer, and information on the pouring device control conditions and pouring information is given from the host computer. The information on the pouring device control conditions includes the number of casting devices to be poured, the position of the casting device, the type of melting furnace that supplies hot water to the pouring ladle, and the like. Also, the pouring information includes a target pouring speed, a target pouring amount, a pouring amount of the pouring ladle, and a type of the pouring ladle. This control unit is a traveling vehicle 61
Motor, encoder 61a and, if necessary, a brake. The control unit 66 causes the motor and the brake to run and stop. The position of the traveling vehicle is detected by an encoder 61a attached to the axle or the like of the traveling vehicle and sent to the control unit 66. A tilt angle control mechanism 661 that is a part of the control unit 66 controls the tilt angle between the tilt table 62 and the pouring ladle 63 by moving the hydraulic cylinder of the tilt table tilt mechanism 64 via a hydraulic amplifier. .
The mechanism 661 for controlling the tilt angle is connected to the encoder 64a (mechanism for measuring the tilt angle) of the tilt mechanism 64 of the tilt table, the load cell 65a for measuring the weight of the pouring ladle, and the hot water sensor 65b. Each of them receives information on the tilt angle, the weight of the pouring ladle, and the presence or absence of hot water.

The control unit 66 casts the traveling vehicle based on the number of casting devices to be poured, the position of the casting device, the amount of hot water stored in the pouring ladle, and the target pouring amount of each casting device received from the host computer. The pouring device is run on a rail laid on the floor above the pit where the device is installed, and the pouring device is stopped immediately above the casting device to be poured. The casting device to be poured is started to rotate several minutes before pouring according to an instruction from the control unit, and is set to a steady operation. Therefore, the tilting table is tilted together with the pouring ladle via the tilting mechanism by operating the hydraulic amplifier of the pouring device to pour the molten metal into the mold of the casting device. When the pouring amount reaches the predetermined target pouring amount, the rotation of the casting apparatus is stopped, and the tilting of the pouring ladle is reversed by a mechanism for controlling the tilting angle of the control unit, thereby performing the draining operation. . If the amount of hot water remaining in the pouring ladle is equal to or greater than the target pouring amount of the casting device to be cast next, the pouring device goes to the next casting device and stops. This casting apparatus is also driven in rotation in advance, and has a steady rotation. Here, pouring is performed in the same manner as in the previous casting apparatus, and the remaining casting apparatuses are similarly cast sequentially. When the amount of hot water remaining in the pouring ladle is less than the target pouring amount of the casting machine to be cast next, that is, it is not enough, stop casting and replace with another pouring ladle containing molten metal. I do.

[0026] Even if a material such as ductile cast iron is liable to generate foreign matter such as dross, the rotational acceleration may be reduced by one.
By adding to the molten metal at 300 to 1330 ° C., the molten metal can be separated by the difference in buoyancy between the foreign material and the molten metal. The acceleration to be applied is preferably 0.3 to 3.5 G. The required acceleration varies depending on the temperature of the molten metal. However, at a temperature suitable for casting a roll, dross does not completely separate at an acceleration smaller than 0.3G.
The above acceleration is required. The greater the acceleration, the better the separation of dross and the like is performed. However, if the acceleration is too large, the outer peripheral portion of the cast molten metal becomes too high and the central portion is depressed, and the dross accumulates at the bottom. In addition, since the number of rotations must be increased to obtain a large acceleration, it is necessary to support the outer sleeve from the outer periphery. Therefore, the maximum acceleration that does not require support from the outer periphery is 3.5 G. To achieve an acceleration of 0.3 to 3.5 G, the rotation speed is set to 60 to 100 rpm.

The casting apparatus is started to rotate several minutes before pouring, and is set to a steady operation at the time of pouring. The molten metal such as ductile is poured from the pouring device through the upper end opening of the upper mold 24 of the mold 2. After the pouring is completed, the rotation drive is stopped in a state where the molten metal in the upper portion or the inside of the mold has not yet solidified. After that, it rotates by inertia for several minutes but stops. When the upper riser is not yet solidified, a heat insulator such as aluminum powder is added to the upper melt to generate heat and prevent shrinkage cavities.

When the temperature of the molten metal cast in the mold 2 is reduced to a temperature at which the mold is solidified and the mold can be separated, the cast for a roll is removed from the turntable 1 in the pit 3 together with the outer sleeve and the mold, and transported to a dismantling location. It is desirable that the dismantling place is provided with a dismantling device 7 as shown in FIGS. FIG. 8 is a plan view of the dismantling device 7, and FIG. 9 is a side view of the same. The disassembling device 7 has a gantry 71, and a moving table 72 having an extruding rod 721 is provided near one end thereof, and the moving table 72 moves in the length direction of the gantry 71 by hydraulic pressure. I have. Since the push rod 721 pushes the center of the casting for roll and the sleeve of the mold, the height of the shaft can be adjusted. A rolling table 73 is provided at the center on the gantry 71. The rolling table 73 is a can having an elongated hole 732 in the center of the bottom plate 731 and rolls around a shaft 733 in the width direction of the gantry 71.
A table 74 on which the outer sleeve is placed horizontally and a bar screen 75 are provided beside the rolling table 73 on the opposite side of the push rod 721 on the gantry. A sand discharge conveyor 76 is provided below the bar screen 75, and a mist nozzle 77 for spraying water is provided beside the bar screen 75.
A rotating metal brush 78 is provided above the bar screen 75.
Is provided.

The roll casting cast in the mold 2 in which the lower mold 22, the body mold 23, and the upper mold 24 are set in the outer sleeve 21 is placed upright on the rolling table 73 as it is.
The rolling table 73 rolls around its axis 733 so that the casting for the roll that has entered the outer sleeve 21 lays on the mounting table 74. The moving table 72 is moved in the direction of the roll casting by adjusting the height of the push rod 721 to the center position of the roll casting. The push rod 721 is located on the bottom plate 7 of the rolling table 73.
31, a long hole 732, a bottom plate 211 of the outer sleeve 21
Into the outer sleeve 21 through the central opening 212 of
It breaks through the sand mold 222 at the bottom of the lower mold 22 and reaches the casting for roll. Still further, as the moving table 72 advances, the push rod 7
21 extrudes the casting for rolls from the mold 2 and puts it on the bar screen 75. The sand attached to the roll casting falls from the bar screen 75 onto a sand discharge conveyor 76 below and is discharged. At this time, water is sprayed from a mist nozzle 77 provided beside the bar screen 75 to suppress dust and cool the roll casting. Then, the casting for a roll is carried to the next step.

After the movable table 72 returns to the original position, the push rod 721 is pulled out of the outer sleeve 21. Push rod 72
1 to the position of the sleeve of the lower mold 22 in the outer sleeve 21, and push the push rod 72 into the outer sleeve 21.
Then, the upper mold 24, the body mold 23, and the lower mold 22 are pushed out of the outer sleeve 21 onto the bar screen 75.
Most of the sand in the sand molds 222 and 242 attached to the mold 2 is removed from the sleeves 221 and 241 and is dropped onto the sand discharge conveyor 76 from between the bar screens 75 and discharged. The sand mold 222 of the lower mold 22 that is partially stuck to the sleeve 221 and does not fall off is driven into the rotating metal brush 78 at the bar screen 75 and scraped off.

As described above, since the roll casting that has been cast can be easily removed from the outer sleeve 21, the dismantling time is short, and the generation of dust can be suppressed. In the present invention, the long pouring gate was eliminated, so that the conventional pouring yield of 65% was improved to about 70%. What had been required about one hour to prepare a mold was reduced to 1/3 hour by the present invention. In addition, dismantling work, which conventionally took two hours for one person, took 0.5 hours for one person according to the present invention.
Saved time. Further, by using the casting line of the present invention, casting of 8 to 10 large rolling rolls can be continuously performed.

[0032]

According to the present invention, by preparing a mold and disassembling after casting at a place other than the casting place by rotating casting using a mold in which a lower mold, a body mold and an upper mold are set in an outer sleeve. As a result, even when casting in a pit, assembly and disassembly can be performed easily, quickly, and safely. In addition to improving the molten metal injection yield, it has become possible to obtain a sound roll casting in which foreign substances such as dross do not remain inside the product. In addition, casting can be performed continuously.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of an example of a casting line of the present invention.

FIG. 2 is a cross-sectional view of an example of the casting line of the present invention.

FIG. 3 is a sectional view of a casting apparatus used in the casting line of the present invention.

FIG. 4 is a side view of an example of a pouring device used in the present invention.

FIG. 5 is a side view showing, in partial cross section, an example of a spar stop mechanism attached to the pouring device.

FIG. 6 is a side view showing an example of a heat retaining agent charging device attached to the pouring device.

FIG. 7 is a block diagram of a control system centering on a control unit of the pouring device.

FIG. 8 is a plan view of the disassembly device.

FIG. 9 is a side view of the dismantling device.

FIG. 10 is a cross-sectional view of a casting mold used for a stationary bottom casting method.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 rotating table 2 mold 21 outer sleeve 211 bottom plate 212 opening 22 lower mold 221 sleeve 222 sand mold 23 trunk mold 24 upper mold 241 sleeve 242 sand mold 25 cotter pin 3 pit 4 casting device 5 rail 6 pouring device 61 traveling cart 61a encoder 62 Tilt table 621 Clamp mechanism 622 Tilt axis 63 Pouring ladle 631 Pouring port 64 Tilt mechanism 64a Encoder 65a Weight measuring mechanism 65b Hot water sensor 66 Control unit 661 Mechanism for controlling the tilt angle 67 Funnel 68 Slip stopper mechanism 681 Arm 682 Separate Arm 683 Slip stopper member 69 Insulation device 691 Magazine 692 Input port 693 Chute 7 Dismantling device 71 Mount 72 Moving table 721 Extruding rod 73 Rolling table 731 Bottom plate 732 Slot hole 733 Shaft 74 Table to be placed horizontally 75 Bar screen 76 Sand discharge conveyor 77 Mist nozzle 78 Metal brush 9 Mold 91 Mold 92 Upper mold 921 Mold 93 Lower mold 931 Mold 932 Weir part 94 Faucet 95 Funnel mold

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification code FI B22D 46/00 B22D 46/00

Claims (3)

[Claims] 1. A casting line having a casting apparatus line in which a plurality of roll casting apparatuses are arranged, wherein the roll casting apparatus comprises a mold in which a lower mold, a body mold, and an upper mold are set in an outer sleeve. A rail for a pouring device placed on the turntable and arranged along the line of the casting device, and traveling on the rail and stopping at a position corresponding to each roll casting device. A casting line for rolling rolls, characterized by having a pouring device capable of pouring. 2. The rolling roll casting line according to claim 1, wherein said casting device line is in a pit underground, and a rail of the pouring device is on a floor. 3. The pouring device according to claim 1, wherein the pouring device includes a traveling cart having a positioning mechanism, a tilting table mounted on the traveling cart and capable of mounting a pouring ladle, and a pouring tray mounted on the tilting table. A ladle, a clamp mechanism provided on the tilting table to fix the pouring ladle, and a tilting mechanism for tilting the tilting table,
A mechanism for measuring the weight of the pouring ladle, a mechanism for measuring the tilt angle of the tilting table, and a mechanism for controlling the pouring based on the measured weight of the pouring ladle and the tilt angle of the pouring ladle. 3. The casting line for a rolling roll according to claim 1, wherein