Mother alloy rotary continuous casting device

Abstract

The utility model discloses a mother alloy rotary continuous casting device which comprises a rotary workbench, eight mounting holes distributed in an annular array mode are formed in the surface of the rotary workbench, casting molds are arranged in the mounting holes, bubble eliminating assemblies are arranged under six of the mounting holes, and the bubble eliminating assemblies are arranged on the surface of the rotary workbench. The bubble eliminating assembly is arranged at the top end of the fixed base, a driving assembly used for driving the rotary workbench to rotate at a certain angle is arranged between the rotary workbench and the fixed base, a mounting frame is arranged on the bubble eliminating assembly, and a transducer is mounted at the top end of the inner side of the mounting frame. An ultrasonic generator is mounted at the bottom end of the inner side of the mounting frame, and an arc-shaped groove is formed in the top end of the mounting frame. According to the utility model, internal air in casting melt in the casting mold is eliminated through differential ultrasonic vibration frequencies, so that the defects of air holes, shrinkage cavities and the like in a casting piece are reduced, and the quality of master alloy casting is improved.

Description

A rotary continuous casting apparatus for master alloys Technical Field

[0001] This utility model relates to the technical field of master alloy casting equipment, specifically a master alloy rotary continuous casting device. Background Technology

[0002] In the casting production of master alloys (such as high-temperature alloys and precision alloys), the efficiency of casting and the internal quality of castings are the core indicators of concern. Traditional master alloy casting mostly adopts a single-mold static casting method, that is, after a single mold completes casting, it needs to wait for cooling or be transferred to cooling equipment. During this period, the casting process needs to be paused, resulting in low production efficiency. In order to improve efficiency, some technologies adopt multi-mold rotation operation and achieve continuous casting through casting robots and handling robots.

[0003] A search revealed that patent publication number CN211990902U discloses a rotary continuous casting device for master alloys, belonging to the field of casting equipment technology. The device includes a rotary platform, molds, an tundish, and transition pieces. The rotary platform is horizontally positioned with a drive mechanism at its bottom. Several molds are circumferentially arranged on the upper surface of the rotary platform with the rotation center as the center. The tundish receives and diverts the molten raw material from the melting furnace, and has a drain outlet at its bottom directly opposite the mold opening. Several transition pieces are located at the top of the molds, connecting the openings of adjacent molds to prevent molten metal from spilling between them during casting. This rotary continuous casting device for master alloys eliminates the need for a diversion plate, reducing the flow distance of the molten metal and minimizing loss. Transition pieces are located at the top of adjacent molds, allowing the molten metal to fall onto and flow along them into the molds on either side, further reducing molten metal loss.

[0004] In practical use, existing rotary continuous casting equipment for master alloys is prone to defects such as porosity and shrinkage cavities when the molten casting solidifies in the mold due to insufficient air removal. These defects directly affect the mechanical properties and reliability of the master alloy. Therefore, a rotary continuous casting equipment for master alloys is designed. Summary of the Invention

[0005] In view of the defects or deficiencies of the master alloy rotary continuous casting device, the purpose of this utility model is to provide a master alloy rotary continuous casting device that eliminates the internal air in the molten casting in the casting mold by differentiating ultrasonic vibration frequencies, reduces defects such as porosity and shrinkage cavities in the casting, and improves the quality of master alloy casting.

[0006] To achieve the above-mentioned objectives, the present invention adopts the following technical solution:

[0007] This utility model provides a master alloy rotary continuous casting device, including a rotary worktable. The surface of the rotary worktable has eight mounting holes arranged in a ring array. A casting mold is installed in the mounting holes. A bubble elimination component is installed directly below six of the mounting holes. The bubble elimination component is installed at the top of a fixed base. A drive component for driving the rotary worktable to rotate at a certain angle is provided between the rotary worktable and the fixed base.

[0008] The bubble elimination assembly is provided with a mounting bracket, a transducer is installed on the inner top of the mounting bracket, an ultrasonic generator is installed on the inner bottom of the mounting bracket, and an arc-shaped groove is formed at the top of the mounting bracket.

[0009] Preferably, the bottom of the rotary table is provided with four connecting rods arranged in a ring array, and the other end of the connecting rods is equipped with an arc-shaped slider. The bottom end of the arc-shaped slider is set on the ring-shaped slide rail, and the arc-shaped slider and the ring-shaped slide rail are slidably connected. The ring-shaped slide rail is installed on the top of the fixed base.

[0010] Preferably, the drive assembly is provided with a rotating shaft, the top end of which is installed at the center of the bottom end of the rotary table, the bottom end of which is installed in a bearing seat, and the bearing seat is installed at the center of the top end of the fixed base.

[0011] Preferably, a driven pulley is installed on the circumferential outer wall of the rotating shaft. The driven pulley is connected to the driving pulley via a transmission belt. The driving pulley is installed on the output shaft of the stepper motor. The stepper motor is installed on one side of the top of the fixed base. Both the stepper motor and the bearing housing are located inside the annular slide rail.

[0012] Preferably, the circumferential outer wall of the casting mold and the wall of the mounting hole are in a clearance fit.

[0013] Compared with existing technologies, one or more of the above technical solutions have the following beneficial effects:

[0014] 1. In this utility model, through a series of coordinated structural arrangements, when this equipment continuously casts molten master alloy, the external casting robot pours the molten master alloy into the casting mold at the casting position. Then, the stepper motor on the drive component starts and drives the rotary table to rotate at a certain angle. After the rotary table rotates at a certain angle, the external casting robot pours the molten master alloy into the casting mold at the casting position again. During the process of the external casting robot pouring the molten master alloy into the casting mold at the casting position, the external transport robot will transport the casting mold after casting to the external cooling equipment for cooling and install the uncast mold into the mounting hole on the rotary table. This realizes continuous casting of molten master alloy without manual intervention, which not only reduces labor costs but also reduces errors caused by manual operation, improves production stability, and greatly improves production efficiency.

[0015] 2. In this utility model, through a series of coordinated structural arrangements, when the casting mold after casting is indirectly rotated at a certain angle and moved to the transport position, the casting mold will pass through six bubble elimination components in sequence. When the casting mold is located on top of the bubble elimination components, the bottom end of the casting mold contacts the top of the mounting frame. The six bubble elimination components will generate vibrations at different frequencies. The six bubble elimination components eliminate the air in the molten casting inside the casting mold with different vibration frequencies, thereby realizing the elimination of internal air in the molten casting inside the casting mold through differentiated ultrasonic vibration frequencies, reducing defects such as porosity and shrinkage cavities in the casting, and improving the quality of the master alloy casting. Attached Figure Description

[0016] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0017] Figure 1 is a schematic diagram of the overall three-dimensional structure of this utility model.

[0018] Figure 2 is a structural diagram of the fixed base and the bubble elimination component of this utility model.

[0019] Figure 3 is a schematic diagram of the structure of the rotary worktable of this utility model.

[0020] Figure 4 is a structural schematic diagram of the drive component of this utility model.

[0021] Figure 5 is a structural schematic diagram of the bubble elimination component of this utility model.

[0022] Figure 6 is a structural schematic diagram of the casting mold of this utility model.

[0023] In the picture:

[0024] 100. Fixed base; 110. Circular slide rail;

[0025] 200. Bubble elimination assembly; 210. Mounting bracket; 211. Arc-shaped groove; 220. Transducer; 230. Ultrasonic generator;

[0026] 300. Drive assembly; 310. Shaft; 320. Driven pulley; 330. Driven pulley; 340. Stepper motor;

[0027] 400. Casting mold;

[0028] 500. Rotary worktable; 510. Mounting hole; 520. Connecting rod; 530. Arc-shaped slider. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0030] As shown in Figures 1-6, a master alloy rotary continuous casting device includes a rotary worktable 500. The surface of the rotary worktable 500 has eight mounting holes 510 arranged in a ring array. A casting mold 400 is installed in the mounting holes 510. A bubble elimination component 200 is installed directly below six of the mounting holes 510. The bubble elimination component 200 is installed at the top of a fixed base 100. A drive component 300 for driving the rotary worktable 500 to rotate at a certain angle is installed between the rotary worktable 500 and the fixed base 100.

[0031] The bubble elimination assembly 200 is provided with a mounting bracket 210. A transducer 220 is installed on the inner top of the mounting bracket 210, and an ultrasonic generator 230 is installed on the inner bottom of the mounting bracket 210. An arc-shaped groove 211 is opened on the top of the mounting bracket 210. The coordinated arrangement of the ultrasonic generator 230 and the transducer 220 can make the top of the mounting bracket 210 vibrate at a certain frequency. When the bottom of the casting mold 400 contacts the top of the mounting bracket 210, the vibration of the top of the mounting bracket 210 will be transmitted to the casting mold 400, so that the air in the molten casting inside the casting mold 400 is discharged to the outside.

[0032] The bottom of the rotary table 500 is provided with four connecting rods 520 arranged in a ring array, and the other end of the connecting rods 520 is equipped with an arc-shaped slider 530. The bottom end of the arc-shaped slider 530 is set on the ring slide rail 110, and the arc-shaped slider 530 and the ring slide rail 110 are slidably connected. The ring slide rail 110 is installed on the top of the fixed base 100. The arrangement of the arc-shaped slider 530 and the ring slide rail 110 plays a role in limiting and guiding the rotation of the rotary table 500, thereby enhancing the stability of the rotary table 500 during rotation.

[0033] The drive assembly 300 is provided with a rotating shaft 310. The top end of the rotating shaft 310 is installed at the center of the bottom end of the rotary table 500. The bottom end of the rotating shaft 310 is installed in a bearing seat, and the bearing seat is installed at the center of the top end of the fixed base 100.

[0034] A driven pulley 320 is mounted on the circumferential outer wall of the rotating shaft 310. The driven pulley 320 is connected to the driving pulley 330 via a transmission belt. The driving pulley 330 is mounted on the output shaft of the stepper motor 340. The stepper motor 340 is mounted on one side of the top of the fixed base 100. The stepper motor 340 and the bearing housing are both located inside the annular slide rail 110. When the stepper motor 340 starts, it will drive the driving pulley 330 to rotate at a certain angle. When the driving pulley 330 rotates at a certain angle, it will drive the driven pulley 320 and the rotating shaft 310 to rotate at a certain angle. When the rotating shaft 310 rotates at a certain angle, it will drive the rotary table 500 to rotate at a certain angle.

[0035] The outer circumferential wall of the casting mold 400 and the wall of the mounting hole 510 are in clearance fit. Because the outer circumferential wall of the casting mold 400 and the wall of the mounting hole 510 are in clearance fit, it is convenient for the handling robot to carry out the handling operation of the casting mold 400.

[0036] Working Principle: During operation, when an external power source is connected and the molten master alloy is continuously poured, the external casting robot pours the molten master alloy into the casting mold 400 at the casting position. Then, the stepper motor 340 on the drive assembly 300 starts, causing the rotary table 500 to rotate at a certain angle. After the rotary table 500 rotates, the external casting robot pours the molten master alloy into the casting mold 400 again. During this process, an external transport robot moves the completed casting mold 400 to an external cooling device for cooling and installs the uncast mold into the mounting hole 510 on the rotary table 500. This achieves continuous pouring of the molten master alloy without the need for external cooling. Manual intervention not only reduces labor costs but also minimizes errors caused by manual operation, improves production stability, and significantly increases production efficiency. When the casting mold 400, after casting, rotates at a certain angle and moves to the transport position, it passes through six bubble elimination components 200 in sequence. When the casting mold 400 is on top of the bubble elimination components 200, its bottom end contacts the top of the mounting bracket 210. The six bubble elimination components 200 will generate vibrations at different frequencies. These six bubble elimination components 200 eliminate air in the molten casting inside the casting mold 400 at different vibration frequencies, thereby achieving the elimination of internal air in the molten casting inside the casting mold 400 through differentiated ultrasonic vibration frequencies. This reduces defects such as porosity and shrinkage cavities in the castings and improves the quality of the master alloy casting.

[0037] The above description is merely a preferred embodiment of this utility model and is not intended to limit the invention. For those skilled in the art, various modifications and variations can be made to this invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the protection scope of this invention.

Claims

1. A rotary continuous casting apparatus for master alloys, comprising a rotary worktable (500), characterized in that: The surface of the rotary table (500) has eight mounting holes (510) arranged in a ring array. A casting mold (400) is provided in the mounting holes (510). A bubble elimination component (200) is provided directly below six of the mounting holes (510). The bubble elimination component (200) is located at the top of the fixed base (100). A drive component (300) for driving the rotary table (500) to rotate at a certain angle is provided between the rotary table (500) and the fixed base (100). A mounting bracket (210) is provided on the bubble elimination component (200). A transducer (220) is installed on the inner top of the mounting bracket (210). An ultrasonic generator (230) is installed on the inner bottom of the mounting bracket (210). An arc-shaped groove (211) is provided at the top of the mounting bracket (210).

2. The rotary continuous casting apparatus for master alloys according to claim 1, characterized in that: The bottom of the rotary worktable (500) is provided with four connecting rods (520) arranged in a ring array, and the other end of the connecting rods (520) is equipped with an arc-shaped slider (530). The bottom end of the arc-shaped slider (530) is set on the ring slide rail (110), and the arc-shaped slider (530) and the ring slide rail (110) are slidably connected. The ring slide rail (110) is installed on the top of the fixed base (100).

3. The rotary continuous casting apparatus for master alloys according to claim 1, characterized in that: The drive assembly (300) is provided with a rotating shaft (310), the top end of which is installed at the center of the bottom end of the rotary table (500), the bottom end of which is installed in a bearing seat, and the bearing seat is installed at the center of the top end of the fixed base (100).

4. The rotary continuous casting apparatus for master alloys according to claim 3, characterized in that: A driven pulley (320) is installed on the circumferential outer wall of the rotating shaft (310). The driven pulley (320) is connected to the driving pulley (330) via a transmission belt. The driving pulley (330) is installed on the output shaft of the stepper motor (340). The stepper motor (340) is installed on one side of the top of the fixed base (100). The stepper motor (340) and the bearing seat are both located inside the annular slide rail (110).

5. The rotary continuous casting apparatus for master alloys according to claim 1, characterized in that: The circumferential outer wall of the casting mold (400) and the wall of the mounting hole (510) are in clearance fit.

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