JPH11123532A - Automatic molten metal pouring machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To appropriately control an automatic molten metal pouring machine when the automatic molten metal pouring machine becomes abnormal. SOLUTION: This molten metal pouring machine is provided with a ladle set along the carrying line of a mold and tilting mechanism for pouring the molten metal in the ladle into the mold by tilting the ladle. In the case of confirming the occurrence of the abnormal state which can not normally executed the pouring of the molten metal, in the automatic molten metal pouring machine, a control means 54 at the abnormal time for outputting a control signal forcedly returning back the ladle during pouring the molten metal to the non-pouring position of the molten metal to the control part 56 in the tilting mechanism.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic pouring machine for automatically pouring a molten metal into a mold.

[0002]

2. Description of the Related Art Conventionally, as shown in, for example, Japanese Patent Application Laid-Open No. Hei 7-185780, a holding furnace for holding a molten metal, and first driving means for inclining the holding furnace to draw out the molten metal from a spout thereof are disclosed. A ladle for receiving the molten metal from the spout, a hoist for suspending the ladle and transporting it from the installation position of the holding furnace to the pouring position of the mold (form), and detecting the weight of the ladle. A weight detection unit, comprising a program control unit, detects the weight of the ladle as an electric signal, monitors the detection output, when it reaches a preset input value,
The first driving means is controlled to stop the flow of molten metal from the spout, and at the time of pouring the individual molds (molds), the detection output from the weight detecting means is constantly monitored.
When the pouring amount of each mold reaches a set value, a tapping device configured to control the second driving means to return the inclination given to the ladle to the horizontal position and stop tapping is known. Have been.

[0003]

In the tapping apparatus described in the above publication, the amount of tapping into the mold is detected in accordance with a detection signal of a weight detecting means such as a load cell for detecting the weight of the ladle. At the time when the amount of hot water reaches the set value, the ladle during pouring which is in the inclined state is simply returned to the horizontal state and the tapping is stopped, so that the weight detecting means fails. In some cases, it has not been possible to prevent formation of a defective product due to an inappropriate amount of hot water with respect to the mold. Further, when an accident occurs in the casting line or when an abnormality occurs, such as when a person enters the work area where the pouring work is performed, it is desirable to stop the pouring work for the mold. In the above tapping device, no consideration was given.

The present invention has been made in view of such circumstances, and provides an automatic pouring machine that can appropriately control the automatic pouring machine when an abnormal situation occurs in the automatic pouring machine.

[0005]

The invention according to claim 1 is
In an automatic pouring machine equipped with a ladle installed along the mold conveying line and a tilting mechanism for tilting the ladle and pouring the molten metal in the ladle into the mold, a normal pouring operation is performed. When it is confirmed that an abnormal situation in which the ladle cannot be performed has occurred in the automatic pouring machine, a control signal for forcibly inverting the ladle during pouring to the non-pouring position is transmitted to the control unit of the tilting mechanism. At the time of abnormality.

[0006] According to the above configuration, when it is confirmed by the abnormal time control means that an abnormal situation has occurred in the automatic pouring machine, the ladle during pouring is forcibly inverted to the non-pouring position. A control signal is output to the control unit of the tilting mechanism, and the tapping operation from the ladle is automatically stopped.

According to a second aspect of the present invention, in the automatic pouring machine according to the first aspect, a tapping detecting means for detecting whether or not the molten metal is flowing out of a pouring port of the ladle, and an amount of the molten metal in the ladle. And an amount detector for detecting the amount of molten metal, and it is configured to determine whether or not an abnormal situation of the automatic pouring machine has occurred according to the detection signals of the molten metal detector and the molten metal amount detector.

[0008] According to the above construction, at the time of pouring work into the mold, it is determined whether or not an abnormal situation of the automatic pouring machine has occurred according to the detection signals of the tapping detecting means and the molten metal amount detecting means. If it is confirmed that something has happened,
A control signal for forcibly inverting the ladle during pouring to the non-pouring position is output to the control unit of the tilting mechanism, and the tapping operation from the ladle is automatically stopped.

According to a third aspect of the present invention, in the automatic pouring machine according to the second aspect, it is confirmed that the molten metal flows out of the pouring port of the ladle in accordance with the detection signal of the tapping detecting means, and When it is confirmed that the molten metal amount in the ladle has not changed according to the detection signal of the molten metal amount detecting means,
The automatic pouring machine is configured to determine that an abnormal situation has occurred.

[0010] According to the above configuration, at the time of pouring into the mold, it is confirmed that the molten metal is flowing out of the pouring port of the ladle in accordance with the detection signal of the tapping detecting means.
When it is confirmed that the amount of the molten metal in the ladle has not changed according to the detection signal of the molten metal amount detecting means, it is determined that a failure has occurred in one of the molten metal detecting means or the molten metal amount detecting means. Then, a control signal for forcibly inverting the ladle during pouring to the non-pouring position is output to the control section of the tilting mechanism.

According to a fourth aspect of the present invention, in the automatic pouring machine according to the second aspect, it is confirmed that the molten metal does not flow out of the pouring port of the ladle according to the detection signal of the tapping detecting means, and When it is confirmed that the amount of molten metal in the ladle has changed according to the detection signal of the molten metal amount detecting means,
The automatic pouring machine is configured to determine that an abnormal situation has occurred.

According to the above construction, at the time of pouring work to the casting mold, it is confirmed that the molten metal does not flow out of the pouring port of the ladle in accordance with the detection signal of the tapping detecting means. If it is confirmed that the amount of molten metal in the ladle has changed in response to the detection signal of the amount detecting means, it is determined that a failure has occurred in one of the above-mentioned molten metal detecting means and the amount of molten metal, and A control signal for forcibly inverting the ladle in the hot water to the non-pour position is output to the control unit of the tilting mechanism.

According to a fifth aspect of the present invention, in the automatic pouring machine according to the first to fourth aspects, a tapping detecting means for detecting whether or not molten metal is flowing from a pouring port of the ladle; Inversion detecting means for detecting that the ladle has been inverted to the hot water stop position. It is confirmed that the ladle has been inverted to the hot water stop position in accordance with the detection signal of the inversion detection means, and the detection signal of the hot water detection means is provided. When it is confirmed that the molten metal is flowing out of the pouring port of the ladle in response to the above, it is determined that an abnormal situation has occurred in the automatic pouring machine.

According to the above configuration, when the ladle in the tapping state is inverted to stop the tapping, it is confirmed that the ladle has been inverted to the tapping stop position in accordance with the detection signal of the inversion detecting means. Regardless, when it is confirmed that the molten metal is flowing out of the pouring port of the ladle according to the detection signal of the hot water detecting means, it is determined that an abnormal situation has occurred in the automatic pouring machine,
A control signal for forcibly inverting the ladle during pouring to the non-pouring position is output to the control section of the tilting mechanism.

According to a sixth aspect of the present invention, in the automatic pouring machine according to any one of the first to fifth aspects, an emergency operation is performed by an operator in an emergency such as when an accident occurs in a casting line. A stop switch is provided, and when it is confirmed that the emergency stop switch has been operated, it is determined that an abnormal situation has occurred in the automatic pouring machine.

According to the above arrangement, when an emergency stop switch is operated by an operator in an emergency such as when an accident occurs in the casting line, it is determined that an abnormal situation has occurred in the automatic pouring machine, and A control signal for forcibly inverting the ladle inside to the non-pour position is output to the control unit of the tilting mechanism.

According to a seventh aspect of the present invention, there is provided the automatic pouring machine according to any one of the first to sixth aspects, wherein the automatic pouring machine detects that a person has entered a work area where the pouring operation is performed. It is provided with a detecting means, and is configured to determine that an abnormal situation has occurred in the automatic pouring machine when it is confirmed that a person has entered the work area according to the detection signal of the entry detecting means. is there.

According to the above configuration, when it is confirmed that a person has entered the work area in which the pouring operation is performed according to the detection signal of the entry detecting means, an abnormal situation occurs in the automatic pouring machine. When the determination is made, a control signal for forcibly inverting the ladle during pouring to the non-pouring position is output to the control section of the tilting mechanism.

According to an eighth aspect of the present invention, in the automatic pouring machine according to any one of the first to seventh aspects, an overflow detecting means for detecting that the molten metal has overflowed from the mold during pouring work on the mold. And when it is confirmed that the molten metal overflows from the mold according to the detection signal of the overflow detecting means, it is determined that an abnormal situation has occurred in the automatic pouring machine.

According to the above configuration, when the molten metal overflows from the mold in accordance with the detection signal of the overflow detecting means during the pouring operation for the mold, an abnormal situation occurs in the automatic pouring machine. When the determination is made, a control signal for forcibly inverting the ladle during pouring to the non-pouring position is output to the control section of the tilting mechanism.

[0021]

1 and 2 show an embodiment of an automatic pouring machine according to the present invention. This automatic pouring machine transports the ladle 1 from a pouring position for the mold to a ladle receiving position for the ladle 1 from a pouring position for the molten metal into a mold conveyed by a mold conveying line described later. A conveying mechanism 2 for tilting, a tilting mechanism 3 for tilting the ladle 1 during pouring,
And a delivery means 4 for lowering the ladle 1 transported to the pouring position by the transport mechanism 2 and delivering the ladle 1 to the tilting mechanism 3.

The ladle 1 is provided with a pair of hooks 6 which are engaged with a hanging portion 5 provided on the transfer means 4 and a locked piece which is locked by a locking means described later provided on the tilting mechanism 3. 7, tilting operation means 8 for tilting the ladle 1 by manual operation in a state where the ladle 1 is transported by the transport mechanism 2, and a pouring port 9 for molten metal. In the vicinity of the pouring port 9,
A pair of left and right engaged parts 11 having a concave portion 10 of an upper constriction corresponding to a projection of an engaging part 12 provided in the tilting mechanism 3 is provided. The recess 10 is provided with a pair of opposing tapered surfaces disposed in the direction of pouring of the molten metal drawn out from the pouring port 9 of the ladle 1. The protrusion of the portion 12 is guided by the tapered surface and fits into the recess 10.

The transport mechanism 2 has a traveling carriage 14 traveling along a traveling rail 13 installed on a ceiling or the like.
As shown in FIG. 3, pouring positions 18 and 19 where a pair of tilting mechanisms 3 are installed in parallel along the transfer line 66 of the mold A.
From the hot-water receiving position 1 where the furnace 17 for holding the molten metal is installed in parallel
The ladle 1 is configured to be transported to the ladles 5 and 16. The ladle 1 received at the hot water receiving positions 15 and 16 is conveyed to the pouring positions 18 and 19 and transferred to the tilting mechanism 3.

The transport mechanism 2 has the pouring position 1
Positioning means 20 for positioning the ladle 1 conveyed to 8, 19 in the conveying direction is provided. As shown in FIG. 4, the positioning means 20 includes a support frame 21 installed along the transport rail 13 and a support frame 2.
A pair of swing arms 22 swingably supported by 1
And a drive cylinder 23 that swings and displaces the swing arm 22.

The traveling carriage 14 is positioned at the pouring position 1
When it was confirmed that the vehicle had stopped after reaching 8,19,
The swing arm 22 is driven by the drive cylinder 23 from the retracted position shown by the solid line to the holding position shown by the imaginary line, and a positioning arm 24 protruding from the traveling vehicle 14 is provided at the tip of the swing arm 23. By being held by the holding rollers 25, the displacement of the traveling carriage 14 in the traveling direction, that is, the transfer direction of the ladle 1 is corrected, and the ladle 1 is accurately positioned at the pouring positions 18 and 19. It has become.

The delivery means 4 includes a hanging portion 5 of the hook 6.
The ladle 1 hung by the hanging part 5 is moved from the upper transfer position shown in FIG. 1 to a lower placement position, and transferred to the tilting mechanism 3. It is configured to be. As shown in FIG. 2, a pair of inclined surfaces 26, 26 inclined in a downward constriction are disposed on the hanging portion 5 so as to face the installation direction of the transport rail 13, that is, the transport direction of the ladle 1. When the hook 6 is engaged with the hanging portion 5, the hook 6 is guided to the center of the hanging portion 5 along the inclined surfaces 26, 26, so that the hook 6 is moved in the transport direction of the ladle 1. 6 is locked in a positioned state.

As shown in FIG. 1, the tilting mechanism 3 is provided with a guide rail 27 installed in a direction perpendicular to the direction in which the ladle 1 is transported by the transport mechanism 2 and for pouring molten metal along the guide rail 27. A moving means comprising a traveling base 28 which travels from the forward operating position to the rear delivery position shown in FIG. 1, a receiving frame 29 installed on the traveling means comprising the traveling base 28, The transport platform 67 transports the traveling base 28 and the ladle 1 moved to the position along the transport direction of the ladle 1, and a load for detecting the total weight of the ladle 1 placed on the receiving frame 29. A sensor 30;
It has a guide portion 31 for guiding the molten metal drawn out from the pouring port 9 of the ladle 1 to a pouring position of the mold.

The receiving frame 29 has an engaging portion 12 having a tapered projection formed at the upper end, support rollers 32 and 33 for supporting the bottom and rear portions of the ladle 1, and a front end. And a rack gear 35 extending in an arc from the rear to the bottom with the support shaft 34 as a center, and the engaging portion 12 provided on the receiving frame 29 is provided.
And the engaged portion 11 provided on the ladle 1
Of the ladle 1 for the tilting mechanism 3
At the time of delivery, the ladle 1 is guided and positioned in the pouring direction by the guiding means.

That is, as shown in FIG.
In the state where the tilting mechanism 3 has been moved to the rearward transfer position by the moving means 8, the ladle 1 is lowered by the transfer means 4 to move the ladle 1 from the upper transport position to the lower mounting position shown in FIG. 5. 1 is moved into the concave portion 10 of the engaged portion 11 provided on the ladle 1,
2 is inserted into the ladle 1 so that the ladle 1 is positioned in the pouring direction, that is, in the traveling direction of the traveling base 28, and is placed on the supporting rollers 32, 33 of the receiving frame 29.
Is placed and supported.

The rack gear 35 of the receiving frame 29 is engaged with a driving gear 36 provided on the traveling base 28, and the driving gear 36 is driven to rotate by a driving motor 37, whereby the receiving frame 29 is rotated. The ladle 1 placed thereon is oscillatingly displaced with the support shaft 34 as a fulcrum, and from the initial position where the pouring port 9 is horizontal as shown by the solid line in FIG. The pouring port 9 is configured to be displaced to a tapping position in which the pouring hole 9 is lowered as shown by.

The receiving frame 29 includes a lock lever 38 whose tip is detachably engaged with the upper surface of the locked piece 7 protruding from the lower front surface of the ladle 1, and a lock lever 38. A lock means 40 having a driving cylinder 39 for driving is provided. When the ladle 1 is placed on the receiving frame 29, a lock lever 38 is driven by the driving cylinder 39 to move the tip end of the lock lever 38 to the engaged position. The ladle 1 is configured to be pressed against the upper surface of the stopper 7 to support the ladle 1 in a state where the ladle 1 is prevented from rising. As shown in FIG. 6, a support roller 41 abuts on the side wall surface of the ladle 1 to regulate the lateral movement thereof.
Is provided.

The tilting operation means 8 provided on the ladle 1
As shown in FIG. 7, a trunnion shaft 42 protruding from the side wall surface of the ladle 1, a worm wheel 43 fixed to the trunnion shaft 42, a worm gear 44 for driving the worm wheel 43, and a worm gear It has a bevel gear mechanism 45 for transmitting a driving force to 44 and an operation handle 46 for driving the bevel gear mechanism 45.
By rotating the operation handle 46, a driving force is transmitted to the trunnion shaft 42 via the bevel gear mechanism 45, the worm gear 44, and the worm wheel 43, and the trunnion shaft 42 is rotationally driven to rotate the ladle. 1 is tilted and displaced.

As shown in FIG. 8, the pouring guide 31 provided on the tilting mechanism 3 is swingably supported on a rotation shaft 47 provided on the transporting mechanism 3 as a fulcrum. At the same time, it is configured to be driven by a driving means 50 having a driving cylinder 48 and a driving lever 49 to swing and displace. In other words, the guide portion 31 swings from the lower pouring position indicated by the solid line in the drawing to the upper retracted position indicated by the imaginary line in accordance with the driving force of the driving means 50, thereby conveying the mold A. At the same time, the guide portion 31 is retracted upward so as not to come into contact with the mold A, and the guide portion 31 is positioned at a position corresponding to the pouring portion of the mold A when the molten metal is poured.
Is designed to descend.

In the above automatic pouring machine, as shown in FIG.
Pouring amount detecting means 5 for detecting required pouring amount for mold A
1, a remaining amount detecting means 52 for detecting a remaining amount of the molten metal stored in the ladle 1, a control for pouring the molten metal stored in the ladle 1 into the mold A, and A pouring control means 53 for controlling the ladle 1 with the remaining amount to be conveyed to the hot water receiving positions 15 and 16 to replenish the molten metal, and a case where it is confirmed that an abnormal situation has occurred during pouring. And an abnormal-time control means 54 for controlling the ladle 1 to return to the initial position.

The pouring amount detecting means 51 controls the pouring positions 18, 1 according to a control signal or the like output from the casting line.
The required pouring amount of the molten metal into the mold A sequentially conveyed to the mold 9 is detected, and this detection signal is outputted to the pouring control means 53. Further, the remaining amount calculating means 52
By subtracting the weight of the ladle 1 stored in advance from the total weight of the ladle 1 detected by the load cell 30, the remaining amount of the molten metal stored in the ladle 1 is obtained, and the detection of this remaining amount It is configured to output a signal to the pouring control means 53.

The pouring control means 53 determines whether or not it is possible to continue pouring with the ladle 1 currently pouring according to the output signals from the pouring amount detecting means 51 and the remaining amount calculating means 52 and the like. And if it is determined that it is possible, the pouring by the ladle 1 is continued; In addition to starting the pouring by the pot 1, the control signal for transporting the ladle 1 with the remaining amount of the molten metal to the receiving positions 15 and 16 to perform the hot receiving operation is transmitted to the transport mechanism controller 55 and the tilting mechanism. It is configured to output to the mechanism control unit 56.

The abnormal time control means 54 includes an emergency stop switch 57 operated by an operator in an emergency such as when an accident occurs in the casting line, and a person entering the work area where the pouring operation is performed. Entry detection means comprising a door switch 58 for detecting that the molten metal has overflown, overflow detection means comprising an overflow sensor 59 for detecting that the molten metal has overflowed from the mold A during the pouring operation for the mold A, An abnormal situation in which pouring cannot be performed normally according to the output signals of the hot water detecting means including the hot water sensor 60 such as a photo sensor for detecting whether or not the molten metal flows out of the melt 9 and the molten metal amount detecting means including the load sensor 30. When it is confirmed that the ladle 1 has occurred in the automatic pouring machine, the control signal for returning the ladle 1 to the initial position is transmitted to the tilting mechanism control. And is configured to output the section 56.

As shown in FIG.
A pair of ladles 1 are disposed at pouring positions 18 and 19 provided along 6, and the ladle 1 is selectively operated to perform pouring, and between the pouring positions 18 and 19. In the automatic pouring machine configured to carry the mold A with one mold A interposed therebetween, the control operation executed by the pouring control means 53 will be described based on the flowcharts shown in FIGS. explain. When the control operation is started, first, it is determined whether or not the ladle 1 currently being poured is the first machine disposed at the pouring position 18 on the upstream side in the transport direction of the mold A (step S1), and YES is determined. When the determination is made, the remaining amount W of the molten metal in the ladle 1 of the first machine detected by the remaining amount detecting means 52 is stored (step S2).

Next, at the time of input of the pouring start signal, at least one frame of the pouring position 18 disposed on the upstream side in the transport direction of the mold A detected by the pouring amount detecting means 51 is located upstream. The required pouring amount for the mold A arranged in a range from the located mold A to the installation position (the first machine) of the ladle 1 currently being poured, that is, the mold A transported to the current pouring position 18; After reading the required pouring amount for the mold A for two frames composed of the mold A located on the upstream side (step S3), based on the remaining amount W of the molten metal stored in the ladle 1 of the first unit. It is determined whether or not the two frames can be poured (step S4).

If the result of the determination in step S4 is NO, and it is confirmed that the ladle 1 of the first machine is not capable of pouring the mold A for the two frames, the downstream side in the transport direction of the mold A No. 2 installed at the pouring position 19 of
After outputting a control signal instructing to start pouring when the unmoulded mold A arrives (step S5), one frame that has reached the pouring position 18 based on the remaining amount W of the first unit. It is determined whether pouring of the mold A into the mold is possible (step S6). If YES is determined in the step S4, the process directly proceeds to the step S6 to determine whether or not the mold A can be poured.

If the determination in step S6 is YES, and it is confirmed that pouring of the mold A that has reached the pouring position 18 where the first pouring unit currently being poured is installed is possible, It is determined whether or not the pouring operation for the mold A has been completed (step S7). If the determination is NO, the ladle 1 of the first machine is detected while detecting the amount of pouring according to the detection signal of the load cell 30. Is output to the tilting mechanism control section 56 to cause the tilting to perform the pouring of the mold A (step S8).

Next, it is determined according to the output signal of the load cell 30 whether or not a predetermined amount of molten metal corresponding to the required amount of molten metal for the mold A has been poured from the ladle 1 of the first machine (step S9). If NO is determined, the process returns to step S8, and the pouring of the mold A is continued. If YES is determined in step S9 and it is confirmed that the pouring of the mold A is completed, the control signal for inverting the ladle 1 of the first unit and stopping the pouring of the mold A is provided. Is output to the tilting mechanism control unit 56 (step S10), and it is determined whether or not the tapping from the ladle 1 has stopped according to the detection signal of the tapping sensor 60 (step S11).

If the determination in step S11 is NO, 1
When it is confirmed that the hot water from the ladle 1 of the machine has not stopped, the process returns to the step S10, and the reversing operation of the ladle 1 is continued. Also, YES in the above step S11
When it is determined that the tapping from the ladle 1 has stopped, the pouring amount poured into the mold A is subtracted from the remaining amount W of the first unit stored in step S2. Thereby, the value of the remaining amount W of the molten metal stored in the storage means is corrected (step S12). Next, the above step S12
It is determined whether or not it is possible to pour the mold A of the next frame located on the upstream side of the pouring position 18 based on the remaining amount W of the molten metal corrected in step (step S13), and YES is determined. In this case, the process returns and the control operation is repeated.

If the determination in step S13 is NO, the control signal for transferring the ladle 1 of the first machine to the hot water receiving positions 15 and 16 and receiving the hot water in the ladle 1 is transmitted to the transport mechanism controller. The hot water reception control is executed by outputting to the tilt control mechanism 55 and the tilting mechanism control section 56 (step S14), and thereafter, the process returns.
If it is determined NO in step S6 and it is confirmed that pouring of the mold A that has reached the pouring position 18 where the ladle 1 currently being poured is installed is impossible,
The pouring from the ladle 1 to the mold A is prohibited, and the process proceeds to step S14 to execute hot water receiving control.

That is, the traveling base 28 of the tilting mechanism 3
Is moved from the front operation position to the rear delivery position, the hanging portion 5 of the delivery means 4 is lowered, and the hook 6 of the ladle 1 is engaged with the hanging portion 5. The ladle 1 is raised to the transport position by the
Thus, the ladle 1 is transported to the hot water receiving positions 15 and 16 and the molten metal is supplied from the holding furnace 17 into the ladle 1.

Next, after the ladle 1 is returned to the pouring positions 18 and 19 by the transport mechanism 2, the ladle 1 is lowered to the tilting mechanism 3 by the delivery means 4, and the ladle 1 is guided by the guiding means. Then, it is placed on the receiving frame 29 while positioning in the pouring direction. Then, the traveling base 28 of the tilting mechanism 3 is moved from the rear delivery position to the front operating position, and stands by. When the pouring start signal is input, the tilting mechanism 3 is operated to take a shot. By pouring the pan 1, the casting mold A is poured through the pouring port 9 and the guide portion 31.

When the determination in step S1 is NO, it is confirmed that the ladle 1 currently being poured is the second machine disposed at the pouring position 19 on the downstream side of the casting direction of the mold A. As shown in FIG.
After storing the remaining amount W of the molten metal in the ladle 1 of the second unit detected at step S15 (step S15), at the time of input of the pouring start signal, transport of the mold A detected by the pouring amount detecting means 51 Pouring position 18 arranged on the upstream side in the direction
From the mold A located at least one frame upstream of
The required pouring amount for the mold A arranged in the range to the installation position of the ladle 1 during the current pouring (unit 2), that is, the pouring position of the second unit from the mold A located upstream of the pouring position 18 The required pouring amount for the mold A for four frames up to the mold A conveyed to 19 is read (step S16).

Next, it is determined based on the remaining amount W of the molten metal accommodated in the ladle 1 of the second unit whether or not the four frames can be poured (step S17). If the determination in step S17 is NO, and it is confirmed by the ladle 1 of the second machine that pouring of the mold A for the four frames is not possible, the ladle 1 is determined based on the remaining amount W of the molten metal. Unit 19 pouring position 19
It is determined whether or not the pouring of the mold A for three frames located on the upstream side is possible (step S18), and if YES is determined, the pouring position 18 on the upstream side in the transport direction of the mold A is determined.
A control signal for instructing the first machine disposed in the first time to start pouring from the next time is output (step S19).

In addition, NO is determined in the above step S18, and the position 3 is located upstream from the pouring position 19 of the second unit.
If it is confirmed that pouring of the frame A into the mold A is impossible, after outputting a control signal instructing the first unit to start pouring from this time (step S
20) Based on the remaining amount W of the second unit, it is determined whether or not it is possible to pour one frame of the mold A that has reached the pouring position 19 (step S21). Next, it is determined whether or not the pouring operation for the mold A is completed (step S2).
2) If the determination is NO, the load cell 30
A control signal for tilting the ladle 1 of the second machine to execute the pouring of the mold A is output to the tilting mechanism control unit 56 while controlling the pouring amount according to the detection signal (step S23).

Thereafter, it is determined whether or not a predetermined amount of molten metal corresponding to the required amount of molten metal for mold A has been poured from ladle 1 of Unit 2 according to the output signal of load cell 30 (step S24). If the determination is made, the process returns to step S23, and the pouring of the mold A is continued. If YES is determined in step S24 and it is confirmed that pouring of mold A is completed, a control signal for inverting ladle 1 of Unit 2 to stop pouring of mold A Is output to the tilting mechanism control unit 56 (step S25), and it is determined whether or not the tapping from the ladle 1 has stopped according to the detection signal of the tapping sensor 60 (step S26).

If the determination in step S26 is NO,
When it is confirmed that the hot water from the ladle 1 of the unit has not stopped, the process returns to the step S25 and the reversing operation of the ladle 1 is continued. YES at step S26
When it is confirmed that the tapping from the ladle 1 has stopped, the molten metal poured into the mold A is subtracted from the remaining amount W of the second machine stored in the step S15. Then, the value of the remaining amount W of the molten metal stored in the storage means is corrected (step S27). Next, the above step S12
It is determined whether or not it is possible to pour the mold A of the next frame located on the upstream side of the pouring position 18 based on the remaining amount W of the molten metal corrected in step (step S28), and YES is determined. In this case, the process returns and the control operation is repeated.

If the determination in step S27 is NO, and it is confirmed that the pouring of the mold A of the next frame located on the upstream side of the pouring position 18 is impossible, the ladle of the second machine is used. The control signal is transmitted to the transport mechanism control unit 55 and the tilting mechanism control unit 56 to carry the hot water to the hot water receiving positions 15 and 16 and to receive the hot water into the ladle 1 (step S29). On the other hand, when it is determined as NO in the above step S21 and it is confirmed that pouring of the mold A that has reached the pouring position 19 where the ladle 1 currently being poured is installed is impossible, Pouring of molten metal from ladle 1 to mold A is prohibited, and the process returns to step S29 to execute hot water receiving control and then returns.

Next, the control operation executed by the abnormal time control means 54 will be described with reference to the flowcharts shown in FIGS. When the control operation starts, it is determined whether or not the emergency stop switch 57 has been operated (step S31). If the determination is YES, an alarm for notifying that an abnormal situation has occurred is activated ( Step S32), the control signal for returning the ladle 1 currently being poured to the initial position is sent to the tilting mechanism controller 5
6 to stop the tapping operation from the ladle 1 (step S33).

If NO is determined in step S31, it is determined whether the door switch 58 is ON (step S34). If YES is determined, step S32 is determined. To execute the control when an abnormality occurs. Next, the overflow sensor 59
It is determined whether or not the molten metal overflows from the mold A at the time of pouring according to the output signal of step S35 (step S35).
If determined to be S, the process proceeds to step S32 to execute control when an abnormality occurs. When the automatic pouring machine is operated, the determination operations of steps S31, S34, and S35 are executed at predetermined time intervals, and when it is confirmed that an abnormality has occurred, the control at the time of occurrence of the abnormality is performed. Is configured.

Next, at the time of input of the pouring start signal, a control signal for starting the pouring of the casting mold A by tilting the ladle 1 by the tilting mechanism 3 is output to the tilting mechanism controller 56 (step S36). The timer is set (step S37). When the timer expires, the ladle 1 is set in accordance with the detection signal of the tapping sensor 60.
It is determined whether or not the molten metal flows out of the pouring port 9 (step S38).

When the determination in step S38 is NO, and it is confirmed that the tapping of the ladle 9 has not started even though the predetermined time has elapsed since the start of the tilting of the ladle 1. In step S32, it is determined that a failure has occurred in the tapping sensor 60 or the tilting mechanism 3.
To activate an alarm for notifying that an abnormal situation has occurred, and to execute control at the time of occurrence of an abnormality for returning the ladle 1 currently being poured to the initial position.

If YES is determined in the above step S38,
If it is confirmed that the tapping has started, it is determined whether or not the remaining amount of the molten metal stored in the ladle 1 has changed according to the output signal of the load cell 30 (step S3).
9), NO is determined in this step S39, and although it is confirmed that the molten metal is flowing out of the pouring port 9 of the ladle 1 according to the detection signal of the molten metal sensor 60, the remaining molten metal remains. If it is confirmed that the amount has not changed, it is determined that a failure has occurred in the tapping sensor 60 or the load cell 30, and the process proceeds to step S32 to execute control when an abnormality occurs.

If the determination in step S39 is YES, the load cell determines whether or not a predetermined amount of molten metal corresponding to the required amount of molten metal for mold A has been poured from ladle 1 of Unit 1. The determination is made in accordance with the output signal of step 30 (step S40). If the determination is NO, the process returns to step S36 to continue the pouring operation. After outputting a control signal for inverting the pot 1 and stopping the pouring of the mold A to the tilting mechanism control unit 56 (step S4)
1) It is determined whether or not the timer for measuring the time until the ladle 1 returns to the hot water stop position has expired (step S42).

If NO is determined in step S42, the ladle 1 is inverted to the hot water stop position in accordance with a detection signal output from an angle detecting means (not shown) for detecting the tilt angle of the ladle 4. (Step S4)
3). If NO is determined in step S43, the process returns to step S41, and the reversing operation of the ladle 1 is continued. Further, when it is determined that the ladle 1 has been inverted to the hot water stop position when YES is determined in step S43 or YES is determined in step S42, control for stopping the inversion operation of the ladle 1 is performed. After outputting the signal to the tilting mechanism control unit 56 (step S44),
A timer is set (step S45).

When it is confirmed that the timer has timed out, it is determined whether or not the tapping from the pouring port 9 has stopped according to the detection signal of the tapping sensor 60 (step S46). In this step S46, N
If it is determined as O and it is confirmed that the tapping from the pouring port 9 has not stopped despite the lapse of a predetermined time from the end of the reversing operation of the ladle 1, the tapping sensor It is determined that a failure has occurred in the tilting mechanism 60 or the tilting mechanism 3, and the process proceeds to step S32, where control is performed when an abnormality occurs.

It is determined YES in the above step S46,
When it is confirmed that the tapping has stopped, it is determined whether or not the remaining amount of the molten metal stored in the ladle 1 has changed according to the output signal of the load cell 30 (step S4).
7) In spite of the determination of NO in step S47, it is confirmed that the flow of the molten metal has stopped from the pouring port 9 of the ladle 1 in accordance with the detection signal of the tapping sensor 60,
When it is confirmed that the remaining amount of the molten metal has changed, it is determined that a failure has occurred in the tapping sensor 60 or the load cell 30, and the process proceeds to step S32 to execute control at the time of occurrence of an abnormality. Also, in the above step S47, Y
If it is determined to be ES, it is determined that the pouring control has been executed normally, and the control operation ends.

The ladle 1 is provided along the transfer line 66 for the mold A as described above, and the tilting mechanism 3 for tilting the ladle 1 is provided. The tilting mechanism 3 tilts and displaces the ladle 1. In an automatic pouring machine configured to pour the molten metal in the ladle 1 into the mold A, it is abnormal that an abnormal situation in which pouring cannot be performed normally occurs in the automatic pouring machine. When it is confirmed by the hour control means 54, a control signal for forcibly inverting the ladle 1 during pouring to the non-pour position is output from the abnormal time control means 54 to the tilting mechanism control section 56. Therefore, when the abnormality occurs, the ladle 1 being poured is quickly returned to the initial position and the tapping operation is stopped, so that incomplete pouring control is executed and defective products are produced. Can be prevented.

That is, the molten metal amount detecting means comprising a molten metal sensor 60 for detecting whether molten metal is flowing out from the pouring port 9 of the ladle 1, and the load sensor 30 comprising the load sensor 30 for detecting the amount of molten metal in the ladle 1. In accordance with the detection signal output from the detecting means, it is determined whether or not the operation of pouring the molten metal in the ladle 1 into the mold A and the operation of terminating the pouring operation are properly performed. When it is confirmed that the pouring is not properly performed, it is determined that an abnormal situation has occurred in the automatic pouring machine, and the ladle 1 is returned to the initial position. As a result, it is possible to prevent in advance that defective products are generated, and that the molten metal overflows due to unnecessarily poured molten metal into the mold A.

For example, in the above embodiment, when the ladle 1 is tilted to start pouring into the mold A, the molten metal flows out from the pouring port 9 of the ladle 1 in accordance with the detection signal of the tapping detecting means. When it is confirmed that the amount of molten metal in the ladle 1 has not changed according to the detection signal of the molten metal amount detecting means, one of the molten metal detecting means and the molten metal amount detecting means has failed. Ladle 1
Is returned to the initial position, it is possible to effectively prevent the generation of defective products due to the execution of the pouring control based on the incorrect data detected by the faulty detecting means. .

In the above embodiment, the ladle 1 during pouring is
Is inverted to stop the pouring of the mold A, it is confirmed that the molten metal does not flow out of the pouring port 9 of the ladle 1 according to the detection signal of the molten metal detecting means, and When it is confirmed that the amount of molten metal in the ladle has changed in response to the detection signal, it is determined that a failure has occurred in one of the molten metal detection means and the molten metal amount detection means, and the ladle 1 is initialized. Since the ladle 1 is not inverted to the hot water stop position, it is erroneously determined to be in the hot water stop state and the inversion operation is stopped because the ladle 1 is not inverted to the hot water stop position. Overflow and the like can be prevented in advance. In addition, instead of the load sensor 30,
It may be configured to determine whether or not the amount of molten metal in the ladle 1 has changed according to the detection signal of the remaining amount detection means 53.

Further, as shown in the above embodiment, the ladle 1
Tap detection means comprising a tap sensor 60 for detecting whether or not molten metal is flowing out of the pouring port 9; and angle detection means for detecting the inclination angle of the ladle 1 or until the ladle 1 is inverted to the tap stop position. A reversing detecting means comprising a timer for measuring time is provided, and the ladle 1 during pouring is reversed so that the mold A
When the pouring of the ladle 1 is stopped, it is confirmed that the ladle 1 has been inverted to the hot water stop position in response to the detection signal of the inversion detecting means, but the ladle 1 is taken in accordance with the detection signal of the hot water detecting means. When it is confirmed that the tapping is not stopped from the pouring port 9 of the pot 1, it is determined that a fault has occurred in the tapping detecting means or the inversion detecting means, and the ladle 1 is returned to the initial position. Although the ladle 1 is not inverted to the hot water stop position, the molten metal overflows due to erroneously determined to be in the hot water stop state and the inversion operation is stopped, or It is possible to effectively prevent the reversal operation from continuing more than necessary when the ladle 1 is reversed.

In the above embodiment, the emergency stop switch 57 operated by the operator in an emergency such as when an accident occurs on the casting line is provided, and it is confirmed that the emergency stop switch 57 has been operated. In addition, since the ladle 1 is configured to be returned to the initial position when it is determined that an abnormal situation has occurred in the automatic pouring machine, the automatic pouring machine is stopped despite the casting line being stopped. Erroneous operation in which the pouring operation is continued can be prevented, and the casting line can be repaired while the pouring operation is stopped.

Further, in the above embodiment, there is provided an entry detecting means comprising a door switch 58 for detecting that a person has entered the work area in which the pouring operation is performed, and in response to a detection signal of the entry detecting means. When it is confirmed that a person has entered the work area, it is determined that an abnormal situation has occurred in the automatic pouring machine, and the ladle 1 is configured to return to the initial position. It is possible to prevent the pouring work from being performed in a state where a person has entered, thereby ensuring safety.

Further, in the above-described embodiment, an overflow detecting means comprising an overflow sensor 59 for detecting that the molten metal overflows from the mold A during the pouring operation on the mold is provided, and the mold is provided in accordance with a detection signal of the overflow detecting means. When the molten metal overflow is confirmed from A, it is determined that an abnormal situation has occurred in the automatic pouring machine and the ladle 1 is returned to the initial position. , Etc., the normal pouring control cannot be executed, and even if the overflow of the molten metal occurs, the overflow can be quickly eliminated. In addition, when an abnormality occurs in the automatic pouring machine, the ladle 1 does not always need to be returned to the initial position, and the ladle 1 is turned upside down to a non-pouring position where the tapping can be reliably prevented from the pouring port 9. May be configured.

In the above embodiment, the pouring amount detecting means 51 for detecting the pouring amount for the mold A and the remaining amount detecting means 52 for detecting the remaining amount of the molten metal contained in the ladle 1 are described.
And pouring control means 53 for controlling the ladle 1 disposed at the pouring positions 18 and 19 to perform pouring by selecting the ladle 1. The pouring amount detecting means 51 and the remaining amount detecting means 52 are provided. Is determined by the pouring control means 53 in accordance with the detection signal of whether or not pouring can be continued by the ladle 1 which is currently pouring. Since the ladle 1 is changed to start pouring by the ladle 1 on standby, the ladle 1 disposed at the pouring position 19 located on the downstream side in the transport direction of the mold A is upstream from the ladle 1. When changing to the other ladle 1 arranged at the pouring position 18 located on the side, the mold A not yet poured is prevented from passing through the other ladle 1, and the ladle is prevented. 1 can be properly executed.

In the above embodiment, the transfer line 66
A pair of ladles 1 at pouring positions 18 and 19 installed along
Has been described, but the transfer line 66
May be a structure in which three or more ladle 1 are arranged along. In this case, when switching from the ladle 1 currently being poured to the ladle 1 disposed upstream of the ladle 1, the ladle 1 is located at least one frame upstream of the pouring position where the ladle 1 is placed. The required pouring amount for the mold A arranged in the range from the located mold A to the installation position of the ladle 1 currently pouring is detected, and the ladle 1 currently pouring is detected based on the required pouring amount. By making a configuration to determine whether or not pouring can be continuously performed, it is possible to reliably prevent the unpoured mold A from passing through the other ladle 1.

In the above embodiment, the hot water receiving position 15,
A transport mechanism 2 for transporting the ladle 1 between the pouring position 16 and the pouring positions 18 and 19;
Tilting mechanism 3 for the ladle 1 installed in the ladle, transfer means 4 for lowering the ladle 1 transported to the pouring positions 18 and 19 by the transport mechanism 2 and transferring the ladle 1 onto the tilting mechanism 3, and this delivery When the ladle 1 is transferred onto the tilting mechanism 3 by the means 4, the engaging portion 12 for guiding and positioning the ladle 1 is used.
And a guiding means including the engaged portion 11,
Even when the pouring positions 15 and 16 and the pouring positions 18 and 19 are separated from each other, the receiving operation for replenishing the molten metal to the ladle 1 can be easily performed with a simple configuration. it can.

That is, the tilting mechanism 3 having a large weight
Is left at the pouring positions 18 and 19, and only the ladle 1 is moved from the pouring positions 18 and 19 by the transport mechanism 2 to the receiving position 1
Since it can be transported to 5 and 16 for hot water reception,
The structure can be simplified and the manufacturing cost can be kept low without increasing the size of the transport mechanism 2. Also,
Since the ladle 1 can be transferred from the transport mechanism 2 onto the tilting mechanism 3 while the ladle 1 is positioned by the guiding means, the ladle 1 is detached from the tilting mechanism 3 and transported as described above. Nevertheless, the tilting mechanism 3
The ladle 1 is placed in an appropriate state on the upper side, and the ladle 1 can be tilted and displaced by the tilting mechanism 3.

Further, after the ladle 1 is transferred from the transport mechanism 2 onto the tilting mechanism 3, another ladle 1 can be transported to the hot water receiving positions 15 and 16 by the transport mechanism 2, so that The plurality of ladles 1 can be sequentially conveyed by the conveying mechanism 2. Therefore, by arranging a plurality of ladles 1 at the pouring positions 18 and 19 and performing the pouring operation alternately, one of the ladles 1 is transported to the pouring position and the pouring operation is performed. While the casting is being performed, the pouring operation for the mold A can be performed by the other ladle 1 without stopping the casting line, so that the operation efficiency can be improved.

Further, in the above embodiment, the tilting means 8 for tilting the ladle 1 is provided while the ladle 1 is suspended by the transport mechanism 2, so that the operation of the automatic pouring machine is stopped. For example, when the ladle 1 is transported to the molten metal discharge position by the transport mechanism 3, the ladle is tilted and displaced by the tilting operation means 8 so that the molten metal in the ladle 1 is discharged to a discharge section such as a drain tank. , The occurrence of a situation in which the molten metal is hardened in the ladle 1 at the end of the pouring operation or the like can be prevented.

As shown in FIGS. 16 and 17,
An opening / closing lid 61 for opening / closing a hot water port of the ladle 1 is provided, and includes an opening / closing drive arm 62 arranged at the hot water receiving positions 15, 16 and a rotary cylinder (not shown) for operating the opening / closing drive arm 62. The opening and closing lid 61 may be configured to be opened and closed by a driving unit having a driving unit. That is, the drive shaft 63 installed at the upper end of the ladle 1
The opening / closing lid 61 is swingably supported by this. A balancer 64 slightly lighter than the weight of the opening / closing lid 61 is provided at both ends of the drive shaft 63, and a driven arm 65 is protruded from the balancer 64. When the driven arm 65 is pushed by the open / close drive arm 62, the drive shaft 63 is rotated and displaced, and the open / close lid 61 is rocked from the closed position shown in FIG. 16 to the open position shown in FIG. You may do so.

In the case where the opening / closing lid 61 for opening and closing the hot water port of the ladle 1 is provided as described above, and the driving section including the driving shaft 63 for driving the opening / closing lid 61 to open / close and the opening / closing driving arm 62 is provided. By opening the opening / closing lid 61 when performing a hot water receiving operation for replenishing the molten metal into the ladle 1 from the holding furnace 17, the hot water receiving operation can be easily performed, and the open / close operation after the hot water is received. With the lid 61 closed, the ladle 1 can be transported to the pouring positions 18 and 19 to perform the pouring operation. Therefore, it is possible to effectively prevent the temperature of the molten metal from lowering during the transportation of the ladle 1 and the pouring operation. When a balancer 64 corresponding to the weight of the opening / closing lid 61 is provided in a drive unit including the drive shaft 63 and the balancer 64 and the weight of the opening / closing lid 61 are balanced, the opening / closing lid 61 Has the advantage that it can be opened and closed with a light force.

[0078]

As described above, according to the present invention, a ladle provided along a mold conveying line, and the molten metal in the ladle is poured into the mold by tilting the ladle. In an automatic pouring machine equipped with a tilting mechanism, if it is confirmed that an abnormal situation in which pouring cannot be performed properly occurs in the automatic pouring machine, the ladle during pouring is forcibly removed. Since the abnormal time control means for outputting a control signal for inverting to the non-pour position to the control unit of the tilting mechanism is provided, the ladle during pouring is quickly returned to the initial position at the time of occurrence of the abnormality, and the tapping operation is performed. By stopping, there is an advantage that imperfect pouring control is executed and defective products can be effectively prevented.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of an automatic pouring machine according to the present invention.

FIG. 2 is a side view of the automatic pouring machine.

FIG. 3 is a plan view showing a structure of an installation part of the automatic pouring machine.

FIG. 4 is a plan view showing a configuration of a positioning unit.

FIG. 5 is a front view showing a specific configuration of a ladle tilting mechanism.

FIG. 6 is a side view showing a specific configuration of a tilting mechanism of a ladle.

FIG. 7 is a cross-sectional view showing a specific configuration of the tilt operation mechanism.

FIG. 8 is an explanatory diagram showing a specific configuration of a guide portion for molten metal.

FIG. 9 is a block diagram illustrating a specific configuration of a control unit.

FIG. 10 is a flowchart showing a first step of a pouring control operation.

FIG. 11 is a flowchart showing a second step of the pouring control operation.

FIG. 12 is a flowchart showing a third step of the pouring control operation.

FIG. 13 is a flowchart showing a fourth step of the pouring control operation.

FIG. 14 is a flowchart showing a first step of the control operation by the abnormal time control means.

FIG. 15 is a flowchart showing a second step of the control operation by the abnormal time control means.

FIG. 16 is an explanatory diagram showing a closed state of an opening / closing lid.

FIG. 17 is an explanatory diagram showing an open state of an opening / closing lid.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Ladle 3 Tilting mechanism 9 Pouring port 30 Load sensor (melt amount detection means) 54 Abnormality control means 56 Tilting mechanism control section 58 Door switch (entrance detection means) 59 Overflow sensor (overflow detection means) 60 Hot water sensor (outflow detection Means) 66 transfer line 67 transfer trolley A mold

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification code FI B22D 47/00 B22D 47/00

Claims (8)

[Claims] 1. An automatic pouring machine comprising: a ladle provided along a mold conveying line; and a tilting mechanism for tilting the ladle and pouring molten metal in the ladle into the mold. When it is confirmed that an abnormal situation in which pouring can not be performed normally occurs in the automatic pouring machine, the control signal for forcibly inverting the ladle during pouring to the non-pouring position is set to the above-described control signal. An automatic pouring machine comprising an abnormal time control means for outputting to a control section of a tilting mechanism. 2. A ladle detecting means for detecting whether or not molten metal is flowing from a pouring port of a ladle, and a molten metal amount detecting means for detecting an amount of molten metal in the ladle. 2. The automatic pouring machine according to claim 1, wherein it is configured to determine whether or not an abnormal situation has occurred in the automatic pouring machine according to a detection signal of the detecting means. 3. It is confirmed that the molten metal is flowing out of the pouring port of the ladle according to the detection signal of the molten metal detecting means, and the amount of the molten metal in the ladle is determined according to the detection signal of the molten metal amount detecting means. The automatic pouring machine according to claim 2, wherein it is configured to determine that an abnormal situation has occurred in the automatic pouring machine when it is confirmed that the automatic pouring machine has not changed. 4. It is confirmed that the molten metal does not flow out of the pouring port of the ladle according to the detection signal of the tapping detecting means,
And when it is confirmed that the amount of molten metal in the ladle has changed according to the detection signal of the molten metal amount detecting means, it is configured to determine that an abnormal situation has occurred in the automatic pouring machine. 3. The automatic pouring machine according to claim 2, wherein: 5. A ladle detecting means for detecting whether or not molten metal is flowing out of a pouring opening of a ladle, and a reversing detecting means for detecting that the ladle has been reversed to a ladle stop position. When it is confirmed that the ladle has been inverted to the hot water stop position according to the detection signal, and that it is confirmed that the molten metal is flowing out of the pouring port of the ladle according to the detection signal of the hot water detection means, The automatic pouring machine according to claim 1, wherein the automatic pouring machine is configured to determine that an abnormal situation has occurred. 6. An automatic pouring machine is provided with an emergency stop switch which is operated by an operator in an emergency such as when an accident occurs on a casting line, and when it is confirmed that the emergency stop switch is operated. The automatic pouring machine according to any one of claims 1 to 5, wherein it is configured to determine that an abnormal situation has occurred. 7. An entry detecting means for detecting that a person has entered a work area where a pouring operation is performed, and confirming that a person has entered the work area according to a detection signal of the entry detection means. The automatic pouring machine according to any one of claims 1 to 6, wherein it is configured to determine that an abnormal situation has occurred in the automatic pouring machine when the operation is performed. 8. An overflow detecting means for detecting that the molten metal overflows from the mold during pouring work on the mold, and when it is confirmed that the molten metal overflows from the mold according to a detection signal of the overflow detecting means. The automatic pouring machine according to any one of claims 1 to 7, wherein the automatic pouring machine is configured to determine that an abnormal situation has occurred.