Liquid supply mechanism for casting machine and liquid supply method for casting machine

Abstract

The precision of the liquid amount of the molten liquid is improved, so that accurate liquid supply is realized. A liquid supply mechanism (10) for a casting machine is provided with: a ladle (11) that stores a melt (25) and supplies the melt to a liquid supply port of a casting machine (51); the mechanical arm (12) is used for controlling the position and the posture of the casting spoon (11); a melt supply unit (21) that injects melt (25) into the ladle (11); a liquid level detection sensor (31) capable of detecting the liquid level of the melt (25) injected into the ladle (11) from the melt supply unit (21); and a melt receiving tank (41) disposed directly below the ladle (11) when the melt (25) is injected into the ladle (11) from the melt supply unit (21). Furthermore, when the molten metal (25) is injected into the ladle (11) from the molten metal supply unit (21), the robot arm (12) keeps the posture of the ladle (11) in an inclined state, thereby intentionally enabling the molten metal (25) injected into the ladle (11) to overflow and spill into the molten metal receiving tank (41), and the storage amount of the molten metal (25) injected into the ladle (11) is always set to a predetermined amount.

Description

TECHNICAL FIELD

[0001] The present application relates to a liquid supply mechanism for a casting machine and a liquid supply method for a casting machine. BACKGROUND

[0002] When casting a die casting product using a die casting machine or the like, it is necessary to supply a prescribed amount of molten metal to an injection sleeve of the die casting machine or a cavity of a mold using a ladle. As a conventional general liquid supply method for a casting machine, a prescribed amount of molten metal is scooped up from a molten metal holding furnace using a ladle, and then supplied to the casting machine side. As a prior art document disclosing such a conventional general liquid supply method for a casting machine, Patent Document 1 below exists.

[0003] PRIOR ART DOCUMENT

[0004] PATENT DOCUMENT

[0005] Patent Document 1: Japanese Patent No. 6396052

[0006] Patent Document 2: Japanese Patent No. 6613106 SUMMARY

[0007] PROBLEMS TO BE SOLVED BY THE INVENTION

[0008] However, in the conventional technology disclosed in Patent Document 1 above, the molten metal holding furnace needs to be operated all the time to maintain the molten metal at a prescribed temperature, and thus there is a problem that a large amount of energy is consumed.

[0009] However, in order to solve the problems of the prior art described above, a mobile pressure vessel is proposed in Patent Document 2 above. This mobile pressure vessel is provided with a mechanism that maintains the molten metal at a prescribed temperature using an electric heater and discharges the molten metal using air pressure.

[0010] However, the mobile pressure vessel disclosed in Patent Document 2 has a problem in the precision of the amount of molten metal discharged using air pressure, and thus there is room for improvement in terms of use in actual manufacturing sites.

[0011] The present application was completed in view of the various problems in the prior art described above, and aims to reduce the loss of consumed energy by eliminating the molten metal holding furnace, and to achieve accurate liquid supply by improving the precision of the amount of molten metal.

[0012] MEANS FOR SOLVING THE PROBLEMS

[0013] Hereinafter, the present application will be described. Note that the reference numerals of the drawings are attached in parentheses in order to make the understanding of the present application easy, but the present application is not limited to the illustrated mode by this.

[0014] The casting machine liquid supply mechanism (10) of the present application includes a ladle (11) that stores molten metal (25) and supplies the molten metal to a casting machine (51) liquid supply port; a robot arm (12) that controls the position and attitude of the ladle (11); a molten metal supply portion (21) that injects molten metal (25) into the ladle (11); a liquid level detection sensor (31) that detects the liquid level of the molten metal (25) injected into the ladle (11) from the molten metal supply portion (21); and a molten metal receiving tank (41) that is disposed directly below the ladle (11) when molten metal (25) is injected into the ladle (11) from the molten metal supply portion (21). The casting machine liquid supply mechanism (10) is characterized in that, when molten metal (25) is injected into the ladle (11) from the molten metal supply portion (21), the robot arm (12) holds the attitude of the ladle (11) in a tilted state, thereby intentionally causing the molten metal (25) injected into the ladle (11) to overflow and spill into the molten metal receiving tank (41), and thereby always setting the storage amount of the molten metal (25) injected into the ladle (11) to a prescribed amount.

[0015] The other casting machine liquid supply mechanism (100) of the present application includes a ladle (11) that stores molten metal (25) and supplies the molten metal to a casting machine (51) liquid supply port; a robot arm (12) that controls the position and attitude of the ladle (11); a molten metal supply portion (21) that injects molten metal (25) into the ladle (11); a liquid level detection sensor (31) that detects the liquid level of the molten metal (25) injected into the ladle (11) from the molten metal supply portion (21); and a molten metal receiving tank (41) that is disposed directly below the ladle (11) when molten metal (25) is injected into the ladle (11) from the molten metal supply portion (21). The other casting machine liquid supply mechanism (100) is characterized in that, when molten metal (25) is injected into the ladle (11) from the molten metal supply portion (21), the robot arm (12) holds the attitude of the ladle (11) in a horizontal state, after molten metal (25) is injected into the ladle (11) in the horizontal state from the molten metal supply portion (21), the robot arm (12) tilts the ladle (11) to intentionally cause the molten metal (25) injected into the ladle (11) to spill into the molten metal receiving tank (41), and after a prescribed time has elapsed, the robot arm (12) restores the attitude of the ladle (11) to the horizontal state, thereby always setting the storage amount of the molten metal (25) remaining in the ladle (11) to a prescribed amount.

[0016] Further, in the liquid supply mechanism (10) for a casting machine of the present application, the molten metal supply part (21) can include at least one mobile pressure vessel, and the liquid level detection sensor (31) can send a stop instruction signal to stop the injection of the molten metal (25) into the ladle (11) to the mobile pressure vessel when detecting the liquid level of the molten metal (25) in the ladle (11) after the molten metal (25) injected into the ladle (11) starts to overflow and spill into the molten metal receiving tank (41), and the mobile pressure vessel can stop the injection of the molten metal (25) into the ladle (11) when receiving the stop instruction signal from the liquid level detection sensor (31).

[0017] Further, in the liquid supply mechanism (10) for a casting machine of the present application or another liquid supply mechanism (100) for a casting machine of the present application, two mobile pressure vessels can be provided with respect to a group of ladles (11) and a robot arm (12).

[0018] The liquid supply method for a casting machine of the present application is performed when supplying a casting machine (51) by using a liquid supply mechanism (10) for a casting machine, which has a ladle (11) that stores molten metal (25) and supplies the molten metal (25) to a supply port of the casting machine (51), a robot arm (12) that controls the position and attitude of the ladle (11), a molten metal supply part (21) that injects the molten metal (25) into the ladle (11), a liquid level detection sensor (31) that can detect the liquid level of the molten metal (25) injected into the ladle (11) from the molten metal supply part (21), and a molten metal receiving tank (41) that is disposed directly below the ladle (11) when the molten metal (25) is injected into the ladle (11) from the molten metal supply part (21), and the liquid supply method is characterized in that the attitude of the ladle (11) is maintained in a tilted state by the robot arm (12) when the molten metal (25) is injected into the ladle (11) from the molten metal supply part (21), thereby intentionally causing the molten metal (25) injected into the ladle (11) to overflow and spill into the molten metal receiving tank (41), and thereby always setting the storage amount of the molten metal (25) injected into the ladle (11) to a predetermined amount.

[0019] Another casting machine liquid supply method according to the present application, which is executed when liquid is supplied to a casting machine (51) by using a casting machine liquid supply mechanism (100) having: a ladle (11) that stores a molten metal (25) and supplies the molten metal (25) to a liquid supply port of the casting machine (51); a robot arm (12) that controls the position and attitude of the ladle (11); a molten metal supply part (21) that injects the molten metal (25) into the ladle (11); a liquid level detection sensor (31) that can detect the liquid level of the molten metal (25) injected into the ladle (11) from the molten metal supply part (21); and a molten metal receiving tank (41) that is disposed directly below the ladle (11) when the molten metal (25) is injected into the ladle (11) from the molten metal supply part (21), is characterized in that, when the molten metal (25) is injected into the ladle (11) from the molten metal supply part (21), the robot arm (12) maintains the attitude of the ladle (11) in a horizontal state, after the molten metal (25) is injected into the ladle (11) in the horizontal state from the molten metal supply part (21), the robot arm (12) tilts the ladle (11) to intentionally cause the molten metal (25) injected into the ladle (11) to spill into the molten metal receiving tank (41), and the robot arm (12) restores the attitude of the ladle (11) to the horizontal state after a prescribed time elapses, thereby always setting the storage amount of the molten metal (25) remaining in the ladle (11) to a prescribed amount.

[0020] Effects of the Invention

[0021] According to the present application, the molten metal holding furnace is eliminated, so that the loss of consumed energy can be reduced, and the accuracy of the liquid amount of the molten metal is improved, so that accurate liquid supply can be achieved. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 FIG. 1 is a side view showing a casting machine liquid supply mechanism according to the present embodiment, particularly showing a state in which a ladle constituting the casting machine liquid supply mechanism is located at a start position.

[0023] Figure 2 FIG. 2 is a side view showing the casting machine liquid supply mechanism according to the present embodiment, particularly showing a state in which a molten metal is injected into the ladle constituting the casting machine liquid supply mechanism.

[0024] Figure 3 FIG. 3 is a front view showing the casting machine liquid supply mechanism according to the present embodiment.

[0025] Figure 4 FIG. 4 is a plan view showing the casting machine liquid supply mechanism according to the present embodiment.

[0026] Figure 5is a view for explaining a casting machine liquid supply method executed by the casting machine liquid supply mechanism of the present embodiment.

[0027] Figure 6 is a view for explaining a casting machine liquid supply method executed by the casting machine liquid supply mechanism of the present embodiment.

[0028] Figure 7 is a view for explaining a casting machine liquid supply method executed by the casting machine liquid supply mechanism of the present embodiment.

[0029] Figure 8 is a view for explaining a casting machine liquid supply method executed by the casting machine liquid supply mechanism of the present embodiment.

[0030] Figure 9 is a view for explaining a casting machine liquid supply method executed by the casting machine liquid supply mechanism of the present embodiment.

[0031] Figure 10 is a view for explaining a casting machine liquid supply method executed by the casting machine liquid supply mechanism of the present embodiment.

[0032] Figure 11 is a view for explaining a casting machine liquid supply method executed by the casting machine liquid supply mechanism of the present embodiment.

[0033] Figure 12 is a view for explaining a casting machine liquid supply method executed by the casting machine liquid supply mechanism of the present embodiment.

[0034] Figure 13 is a side view showing another casting machine liquid supply mechanism of the present embodiment, particularly showing a state where a ladle constituting the casting machine liquid supply mechanism is positioned at a start position.

[0035] Figure 14 is a view for explaining a casting machine liquid supply method executed by the casting machine liquid supply mechanism of the present embodiment.

[0036] Figure 15 is a view for explaining a casting machine liquid supply method executed by the casting machine liquid supply mechanism of the present embodiment.

[0037] Figure 16 is a view for explaining a casting machine liquid supply method executed by the casting machine liquid supply mechanism of the present embodiment.

[0038] Figure 17 is a view for explaining a casting machine liquid supply method executed by the casting machine liquid supply mechanism of the present embodiment.

[0039] Figure 18is a view for explaining a casting machine liquid supply method executed by another casting machine liquid supply mechanism of the present embodiment.

[0040] Figure 19 is a view for explaining a casting machine liquid supply method executed by another casting machine liquid supply mechanism of the present embodiment. DETAILED DESCRIPTION

[0041] Hereinafter, a preferred embodiment of the present application will be described using the drawings. Note that the following embodiment does not limit the application of each technical solution, and furthermore, the combination of features described in the embodiment is not necessarily essential to the solution means of the application.

[0042] First, reference will be made to Figures 1-4 The detailed structure of the casting machine liquid supply mechanism of the present embodiment will be described. Here, Figure 1 and Figure 2 is a side view showing the casting machine liquid supply mechanism of the present embodiment, and in particular, in Figure 1 , the state in which the ladle constituting the casting machine liquid supply mechanism is positioned at the start position is shown, and in Figure 2 , the state in which the molten metal is injected into the ladle constituting the casting machine liquid supply mechanism is shown. Furthermore, Figure 3 is a front view showing the casting machine liquid supply mechanism of the present embodiment, Figure 4 is a plan view showing the casting machine liquid supply mechanism of the present embodiment.

[0043] As shown in Figures 1-4 , the casting machine liquid supply mechanism 10 of the present embodiment is configured to have a ladle 11 that stores molten metal 25 and supplies the molten metal to a liquid supply port of a casting machine 51, a robot arm 12 that controls the position and attitude of the ladle 11, a molten metal supply part 21 that injects the molten metal 25 into the ladle 11, a liquid level detection sensor 31 that can detect the liquid level of the molten metal 25 injected into the ladle 11 from the molten metal supply part 21, and a molten metal receiving tank 41 that is disposed directly below the ladle 11 when the molten metal 25 is injected into the ladle 11 from the molten metal supply part 21.

[0044] As shown in Figure 2 , the ladle 11 is a member that can store molten metal 25 such as an aluminum alloy. In the ladle 11 of the present embodiment, Figure 2 , the portion on the right side of the paper becomes a liquid overflow outlet when the molten metal 25 is injected from the molten metal supply part 21, and on the other hand, Figure 2 , the portion on the left side of the paper becomes a liquid injection port when the molten metal is supplied to the liquid supply port of the casting machine 51.

[0045] The robot arm 12 can move the ladle 11 to the position in Figure 3 and Figure 4The three positions indicated by reference numerals (A), (B), and (C) in the attached diagram are moved. Additionally, if... Figure 1 and Figure 2 By comparison, it is clear that the robotic arm 12 is configured to change the tilt angle of the casting spoon 11. That is, the robotic arm 12 of this embodiment can cover... Figure 3 as well as Figure 4 The position and orientation of the casting spoon 11 are controlled within the movable range of the three positions indicated by reference numerals (A), (B), and (C) in the attached drawing.

[0046] The molten metal supply unit 21 is configured as a movable pressure vessel and includes a mechanism for maintaining the molten metal at a predetermined temperature using an electric heater and for discharging the molten metal under pressure using air. Additionally, as... Figure 3 as well as Figure 4 As shown, regarding the molten metal supply unit 21 of this embodiment, two movable pressure vessels are provided relative to a set of casting ladles 11 and robotic arms 12. The reason why the casting machine supply mechanism 10 of this embodiment has two movable pressure vessels is that even if the molten metal 25 in one movable pressure vessel is exhausted, the molten metal 25 continues to be supplied by the other movable pressure vessel. By changing the movable pressure vessel filled with molten metal 25 during this period, the molten metal supply operation to the molten metal supply port of the casting machine 51 can be continuously performed. Thus, the casting machine supply mechanism 10 of this embodiment has two movable pressure vessels as molten metal supply units 21, thereby realizing a highly productive molten metal supply system.

[0047] The liquid level detection sensor 31 consists of three contact sensors, each with a different lower end position. In this embodiment, Figure 1 as well as Figure 2 The lower end of the contact sensor located on the left side of the paper is positioned at the lowest point (closest to the ground), and the lower ends of the contact sensors are positioned higher (away from the ground) as the contact sensor in the center and the contact sensor on the right side of the paper are positioned. Figure 2 As shown, the lower end is positioned at the lowest point. Figure 1 as well as Figure 2 The contact sensor located on the left side of the paper is the first to contact the molten metal 25 when it is poured into the casting ladle 11, and it also functions as a ground wire. Next, as... Figure 2As shown, the central contact sensor disposed at the lower end portion at the middle position is a contact sensor that detects the liquid surface of the molten metal 25 in the ladle 11 after the molten metal 25 that has just started to overflow from the molten metal 25 injected into the ladle 11 disposed in the inclined posture is spilled into the molten metal receiving tank 41. The central contact sensor is configured to be able to transmit a stop instruction signal that stops the injection of the molten metal 25 into the ladle 11 to the mobile pressure vessel that is the molten metal supply portion 21 when the contact sensor contacts the molten metal 25 in the ladle 11. The molten metal supply portion 21 of the mobile pressure vessel that receives the stop instruction signal from the liquid surface detection sensor 31 is configured to perform an operation to stop the injection of the molten metal 25 into the ladle 11 when the stop instruction signal from the liquid surface detection sensor 31 is received. Finally, the contact sensor disposed at the lower end portion at the highest position is a contact sensor that detects the liquid surface of the molten metal 25 in the ladle 11 after the molten metal 25 that has just started to overflow from the molten metal 25 injected into the ladle 11 disposed in the inclined posture is spilled into the molten metal receiving tank 41. The contact sensor disposed at the lower end portion at the highest position is configured to be able to transmit a stop instruction signal that stops the injection of the molten metal 25 into the ladle 11 to the mobile pressure vessel that is the molten metal supply portion 21 when the contact sensor contacts the molten metal 25 in the ladle 11. The molten metal supply portion 21 of the mobile pressure vessel that receives the stop instruction signal from the liquid surface detection sensor 31 is configured to perform an operation to stop the injection of the molten metal 25 into the ladle 11 when the stop instruction signal from the liquid surface detection sensor 31 is received. Figure 1 and Figure 2 The contact sensor disposed on the right side of the paper is a contact sensor for abnormality detection. In the case where the contact sensor disposed on the right side of the paper detects the molten metal 25, it is determined that an abnormality has occurred, and the operation of the molten metal supply mechanism 10 for the casting machine of the present embodiment is stopped.

[0048] As shown in Figure 2 , the molten metal receiving tank 41 is a member for recovering and reusing the spilled molten metal 25 when the molten metal 25 injected into the ladle 11 overflows. The molten metal receiving tank 41 of the present embodiment can be moved by using a forklift, a ceiling crane, or the like, which is not shown, and thus the recirculation of the solidified molten metal 25 can be performed.

[0049] The specific structure of the molten metal supply mechanism 10 for the casting machine of the present embodiment has been described above with reference to Figures 1-4 , but the molten metal supply mechanism 10 for the casting machine of the present embodiment is characterized in that, as shown in Figure 2 , the posture of the ladle 11 is maintained in the inclined state by the robot arm 12 when the molten metal 25 is injected into the ladle 11 from the molten metal supply portion 21. Thus, the posture of the ladle 11 is maintained in the inclined state by the robot arm 12, and the molten metal 25 is injected into the ladle 11 from the molten metal supply portion 21 in this state, and the molten metal 25 injected into the ladle 11 is intentionally caused to overflow and spill into the molten metal receiving tank 41, so that the storage amount of the molten metal 25 injected into the ladle 11 is always set to a prescribed amount. That is, the mobile pressure vessel that is the molten metal supply portion 21 of the present embodiment has a deficiency in the precision of the liquid amount of the molten metal discharged by air pressure, but by supplying the molten metal 25 to the ladle 11 in the inclined state, it is possible to always store an accurate amount of the molten metal 25 in the ladle 11. Thus, according to the molten metal supply mechanism 10 for the casting machine of the present embodiment, it is possible to achieve accurate molten metal supply by improving the precision of the liquid amount of the molten metal 25.

[0050] The specific structure of the molten metal supply mechanism 10 for the casting machine of the present embodiment has been described above. Next, the operation of the molten metal supply mechanism 10 for the casting machine of the present embodiment will be described with reference toFigures 5-12 The casting machine liquid supply method performed by the casting machine liquid supply mechanism 10 of the present embodiment will be described. Here, Figures 5-12 is a view for explaining the casting machine liquid supply method performed by the casting machine liquid supply mechanism of the present embodiment.

[0051] The initial state of the casting machine liquid supply mechanism 10 of the present embodiment is shown in Figure 5 . In the initial state shown in Figure 5 , the position of the ladle 11 mounted to the arm tip of the robot arm 12 becomes the initial position of the ladle 11.

[0052] By operating the robot arm 12 from the initial state shown in Figure 5 , the ladle 11 is lowered in the vertical direction to a position halfway between the liquid level detection sensor 31 and the molten metal receiving tank 41 as shown in Figure 6 , and further, the ladle 11 is moved horizontally in the direction of the molten metal supply part 21 as shown in Figure 7 , so that the ladle 11 is moved to a position sandwiched by the liquid level detection sensor 31 and the molten metal receiving tank 41. From the state shown in Figure 7 , the robot arm 12 is raised, and is set to a state in which the ladle 11 is tilted, so that the state shown in Figure 8 is achieved. Figure 8 The state shown in is a state in which the preparation for pouring the molten metal 25 into the ladle 11 is completed.

[0053] Figure 8 After the state shown in Figure 9 is achieved, the molten metal 25 is poured from the movable pressure vessel that is the molten metal supply part 21 toward the ladle 11, at this time, the robot arm 12 holds the posture of the ladle 11 in the tilted state, and further, the molten metal 25 poured into the ladle 11 is intentionally caused to overflow and spill into the molten metal receiving tank 41, so that the storage amount of the molten metal 25 poured into the ladle 11 can be always set to a prescribed amount. The situation of such an operation is shown in

[0054] In addition, moreover, at the time of the state shown in Figure 9 , that is, after the molten metal 25 poured into the ladle 11 disposed in the tilted posture has just started to overflow and spill into the molten metal receiving tank 41, the central contact sensor among the liquid level detection sensor 31 comes into contact with the molten metal 25 in the ladle 11, so that a stop instruction signal to stop the pouring of the molten metal 25 into the ladle 11 is transmitted to the movable pressure vessel that is the molten metal supply part 21. In the molten metal supply part 21 provided with the movable pressure vessel that receives the stop instruction signal from the liquid level detection sensor 31, the stop instruction signal from the liquid level detection sensor 31 is received, so that an operation to stop the pouring of the molten metal 25 into the ladle 11 is performed.

[0055] When the supply of the molten metal 25 from the movable pressurizing kettle as the molten metal supply part 21 to the ladle 11 is stopped, the state where the prescribed amount of the molten metal 25 is stored in the ladle 11 is obtained, and therefore the robot arm 12 is changed in posture as shown in FIG. 6A in such a manner that the ladle 11 is slightly lowered while becoming horizontal, and further, the ladle 11 is horizontally moved in a direction away from the molten metal supply part 21 as shown in FIG. 6B. Figure 10 Figure 11

[0056] Then, the robot arm 12 is driven to rotate from the state shown in FIG. 6B, and thereby the ladle 11 is moved to the position of the supply port of the casting machine 51. This state is shown in FIG. 6C. Figure 11 Figure 12 Figure 12 Figure 4 Figure 12 In the state shown in FIG. 6C, the robot arm 12 is driven to tilt the ladle 11, and thereby the supply of the molten metal 25 to the supply port of the casting machine 51 is performed.

[0057] Finally, when the supply of the molten metal 25 from the ladle 11 to the supply port of the casting machine 51 is completed as shown in FIG. 6D, the robot arm 12 is again driven to rotate to return the ladle 11 to the position of the initial position shown in FIG. 6A. By using the series of actions explained above, the execution of the casting machine supply method of the present embodiment is completed. Figure 12 Figure 5 Figures 5-12

[0058] According to the casting machine supply mechanism 10 and the casting machine supply method of the present embodiment described above, the molten metal holding furnace is dispensed with, and thereby the loss of consumed energy can be reduced, and the accuracy of the amount of the molten metal 25 is improved, and thereby accurate supply can be achieved. Thus, casting which is advantageous in cost, productivity, material yield, environment, and the like, compared with the prior art, can be performed.

[0059] The above describes the preferred embodiment of the present application. However, the scope of the technology of the present application is not limited to the range described in the above embodiment, and includes various modifications. Therefore, another casting machine supply mechanism 100 and a casting machine supply method performed using the casting machine supply mechanism 100 of the present embodiment will be explained using FIG. 7. Figures 13-19

[0060] Here, Figure 13 is a side view showing another casting machine supply mechanism of the present embodiment, and particularly shows the state where the ladle constituting the casting machine supply mechanism is positioned at the initial position. In addition, Figures 14-19 is a view for explaining a casting machine supply method performed by another casting machine supply mechanism of the present embodiment. ​​​​​​​​​​

[0061] First, the initial state of the liquid supply mechanism 100 for another casting machine in this embodiment is as follows: Figure 13 As shown in the image. Regarding... Figure 13 The structure of another casting machine liquid supply mechanism 100 shown in this embodiment is different from that shown in the description of the above embodiment. Figure 1 as well as Figure 5 The content is the same. Therefore, regarding the device structure of another casting machine liquid supply mechanism 100 of this embodiment, the description is omitted by using the same reference numerals as the above embodiment. However, the operation of another casting machine liquid supply mechanism 100 of this embodiment is different from that of the above embodiment, therefore, it will be referred to as... Figures 13-19 Explain the content of this action.

[0062] In another casting machine liquid supply mechanism 100 of this embodiment, in Figure 13 In the initial state shown, the position of the casting spoon 11 installed at the front end of the robotic arm 12 is the starting position of the casting spoon 11.

[0063] By from Figure 13 The initial state shown enables the robotic arm 12 to operate, thereby... Figure 14 As shown, the casting spoon 11 is lowered vertically to a position between the liquid level detection sensor 31 and the molten liquid receiving tank 41, and then, by means of... Figure 15 As shown, the casting spoon 11 is moved horizontally towards the molten metal supply section 21, thereby moving the casting spoon 11 to a position where it is clamped by the liquid level detection sensor 31 and the molten metal receiving tank 41. From Figure 15 Starting from the state where the robotic arm 12 maintains the casting ladle 11 in a horizontal position, the casting ladle 11 is raised, and then molten metal 25 is injected from the movable pressure vessel, which serves as the molten metal supply unit 21, toward the casting ladle 11, thereby achieving... Figure 16 The state shown. At this time, the amount of molten 25 poured into the casting ladle 11, which is kept in a horizontal state, is preferably set to be slightly more than the originally required amount. Such a setting can be controlled by receiving and utilizing a stop command signal from the liquid level detection sensor 31 by the molten supply unit 21 equipped with a movable pressure vessel.

[0064] After achieving Figure 16 After the indicated state, the robotic arm 12 tilts the casting ladle 11 to intentionally spill the molten 25 poured into the ladle 11 into the molten receiving tank 41. Such an action occurs in... Figure 17 As shown in the image.

[0065] 12 robotic arms Figure 17The state in which the ladle 11 is inclined as shown is maintained for a prescribed time, and after the prescribed time elapses, the robot arm 12 restores the posture of the ladle 11 to the horizontal state, thereby always setting the storage amount of the molten metal 25 remaining in the ladle 11 to the prescribed amount. The case of such an operation is shown in Figures 17-18 .

[0066] As shown in Figure 18 , after becoming a state in which the prescribed amount of the molten metal 25 is stored in the ladle 11, the robot arm 12 is driven to rotate, thereby moving the ladle 11 to the position of the supply port of the casting machine 51. This state is shown in Figure 19 . Figure 19 The position of the ladle 11 shown in Figure 4 is the same as the position shown by reference sign (C) in Figure 19 . In the state shown in , the robot arm 12 is driven to incline the ladle 11, thereby performing the supply of the molten metal 25 to the supply port of the casting machine 51.

[0067] Figure 19 Finally, when the supply of the molten metal 25 from the ladle 11 to the supply port of the casting machine 51 is completed as shown in Figure 13 , the robot arm 12 is again driven to rotate to return the ladle 11 to the position of the initial position shown in Figures 13-19 . By using the series of operations explained above, the execution of the other casting machine molten metal supply method of the present embodiment is completed.

[0068] According to the other casting machine molten metal supply mechanism 100 and the casting machine molten metal supply method of the present embodiment described above, it is possible to reduce the loss of consumed energy by abolishing the molten metal holding furnace, and it is possible to achieve accurate molten metal supply by improving the accuracy of the amount of the molten metal 25. In addition, according to the other casting machine molten metal supply mechanism 100 and the casting machine molten metal supply method of the present embodiment, it is possible to minimize the amount of the molten metal 25 intentionally spilled into the molten metal receiving pot 41 from the molten metal 25 injected into the ladle 11, and thus it is possible to efficiently perform the supply of the molten metal to the casting machine. Thus, it is possible to perform casting that is advantageous in terms of cost, productivity, material yield, environment, and the like, compared to the related art.

[0069] The above describes the preferred embodiments of the present application, but the technical scope of the present application is not limited to the range described in each of the above embodiments. Various modifications or improvements can be made to each of the above embodiments.

[0070] For example, in each of the above embodiments, two mobile pressure vessels are provided as the molten metal supply part 21, but the number of mobile pressure vessels constituting the molten metal supply part of the present application can be one or three or more.

[0071] Further, for example, in the ladle 11 of each of the above-described embodiments, a case is exemplified in which, Figure 2 the position on the right side of the paper in FIG. 25 becomes a liquid overflow outlet at the time of pouring the molten metal 25 from the molten metal supply part 21, and on the other hand, Figure 2 the position on the left side of the paper in FIG. 25 becomes a liquid supply inlet at the time of supplying the liquid to the casting machine 51, but as for the shape of the ladle of the present application, the direction used, and the like, they can be arbitrarily changed within a range in which the same effects as those of the above-described embodiments can be exerted.

[0072] It is apparent from the description of the patent technical solution that the manner in which such changes or improvements are made can also be included in the technical scope of the present application.

[0073] Explanation of Reference Numerals

[0074] 10, 100 liquid supply mechanism for casting machine, 11 ladle, 12 mechanical arm, 21 molten metal supply part, 25 molten metal, 31 liquid level detection sensor, 41 molten metal receiving tank.

Claims

1. A liquid supply mechanism for a casting machine, comprising: The casting ladle stores the molten metal and supplies it to the molten metal inlet of the casting machine; A robotic arm that controls the position and orientation of the casting spoon; A molten liquid supply unit that injects molten liquid into the casting ladle; A liquid level detection sensor is provided, which is capable of detecting the liquid level of the molten liquid injected into the casting ladle from the molten liquid supply section; as well as A molten metal receiving vessel is positioned directly below the casting ladle when molten metal is poured into it from the molten metal supply section. The liquid supply mechanism for the casting machine is characterized in that... When molten metal is injected into the casting ladle from the molten metal supply section, the robotic arm keeps the casting ladle in an inclined position, thereby intentionally causing the molten metal injected into the casting ladle to overflow and spill into the molten metal receiving tank, thus keeping the amount of molten metal stored in the casting ladle always at a predetermined amount.

2. A liquid supply mechanism for a casting machine, comprising: The casting ladle stores the molten metal and supplies it to the molten metal inlet of the casting machine; A robotic arm that controls the position and orientation of the casting spoon; A molten liquid supply unit that injects molten liquid into the casting ladle; A liquid level detection sensor is provided, which is capable of detecting the liquid level of the molten liquid injected into the casting ladle from the molten liquid supply section; as well as A molten metal receiving vessel is positioned directly below the casting ladle when molten metal is poured into it from the molten metal supply section. The liquid supply mechanism for the casting machine is characterized in that... When molten metal is injected into the casting ladle from the molten metal supply unit, the robotic arm keeps the casting ladle in a horizontal position. After the molten metal is injected into the horizontal casting ladle from the molten metal supply unit, the robotic arm tilts the casting ladle to intentionally spill the molten metal injected into the casting ladle into the molten metal receiving tank. After a predetermined time, the robotic arm restores the casting ladle to a horizontal position, thereby always keeping the amount of molten metal remaining in the casting ladle at a predetermined level.

3. The liquid supply mechanism for a casting machine according to claim 1, characterized in that, The molten metal supply unit includes at least one mobile pressurizing vessel. When the liquid level detection sensor detects that the molten liquid injected into the casting ladle has just begun to overflow and spill into the molten liquid receiving tank, it can send a stop command signal to the mobile pressurizing vessel to stop the injection of molten liquid into the casting ladle. When the mobile pressurizing vessel receives the stop command signal from the liquid level detection sensor, it stops injecting molten liquid into the casting ladle.

4. The liquid supply mechanism for a casting machine according to claim 2 or 3, characterized in that, In addition to a set of casting spoons and robotic arms, there are two mobile pressure vessels.

5. A method for supplying liquid to a casting machine, which is performed when supplying liquid to the casting machine using a liquid supply mechanism for a casting machine. The liquid supply mechanism for the casting machine includes: The casting ladle stores the molten metal and supplies it to the molten metal inlet of the casting machine; A robotic arm that controls the position and orientation of the casting spoon; A molten liquid supply unit that injects molten liquid into the casting ladle; A liquid level detection sensor is provided, which is capable of detecting the liquid level of the molten liquid injected into the casting ladle from the molten liquid supply section; as well as A molten metal receiving vessel is positioned directly below the casting ladle when molten metal is poured into it from the molten metal supply section. The liquid supply method for the casting machine is characterized in that... When molten metal is injected into the casting ladle from the molten metal supply section, the robotic arm keeps the casting ladle in an inclined position, thereby intentionally causing the molten metal injected into the casting ladle to overflow and spill into the molten metal receiving tank, thus keeping the amount of molten metal stored in the casting ladle always at a predetermined amount.

6. A method for supplying liquid to a casting machine, which is performed when supplying liquid to the casting machine using a liquid supply mechanism for a casting machine. The liquid supply mechanism for the casting machine includes: The casting ladle stores the molten metal and supplies it to the molten metal inlet of the casting machine; A robotic arm that controls the position and orientation of the casting spoon; A molten liquid supply unit that injects molten liquid into the casting ladle; A liquid level detection sensor is provided, which is capable of detecting the liquid level of the molten liquid injected into the casting ladle from the molten liquid supply section; as well as A molten metal receiving vessel is positioned directly below the casting ladle when molten metal is poured into it from the molten metal supply section. The liquid supply method for the casting machine is characterized in that... When molten metal is injected into the casting ladle from the molten metal supply unit, the robotic arm keeps the casting ladle in a horizontal position. After the molten metal is injected into the horizontal casting ladle from the molten metal supply unit, the robotic arm tilts the casting ladle to intentionally spill the molten metal injected into the casting ladle into the molten metal receiving tank. After a predetermined time, the robotic arm restores the casting ladle to a horizontal position, thereby always keeping the amount of molten metal remaining in the casting ladle at a predetermined level.

Images