Casting equipment for producing and processing aluminum dumbbell castings

Abstract

The invention discloses casting equipment for producing and processing aluminum dumbbell castings, and belongs to the field of casting equipment, the casting equipment comprises a base, one side of the top of the base is fixedly connected with a lifting seat, the top of the lifting seat is fixedly connected with a first servo motor, and the output end of the first servo motor is fixedly connected with a first threaded rod. When argon enters the annular pipe and is sprayed out through the multiple gas outlet pipes and molten aluminum enters the conical barrel, the argon forms an inert gas protection layer, contact between outside oxygen and the molten aluminum is effectively isolated, the molten aluminum is prevented from generating oxide inclusions in the pouring process, the argon enters the molten aluminum to form bubbles, the bubbles slowly float upwards under the action of buoyancy, and therefore the molten aluminum is prevented from generating bubbles. In the process, the bubbles collide with oxide inclusions in molten aluminum, and inclusion particles are adsorbed on the surfaces of the bubbles by means of the surface tension effect, so that impurities in a casting can be reduced, the influence of the impurities on the density of the casting is avoided, the density of the casting is effectively improved, and the strength of the casting is improved.

Description

Technical Field

[0001] This invention relates to the field of casting equipment, and more specifically, to a casting equipment for the production and processing of aluminum dumbbell castings. Background Technology

[0002] Dumbbells are a widely used piece of equipment in the sports and fitness field, used for strength training and muscle building. With increasing health awareness and the development of the fitness industry, the demand for dumbbells is constantly increasing. To meet the needs of large-scale production and cost reduction, casting has become an important method for producing dumbbell castings. Casting can produce dumbbells of various shapes and sizes to meet the needs of different users. Casting involves pouring molten metal into a casting cavity that conforms to the shape of the part, and then allowing it to cool and solidify.

[0003] Existing metal casting machines rely on simple locating pins and a few clamping points to fix the mold, which may make it difficult to accurately position the mold during installation. This is especially true for molds with complex shapes or large sizes, where even small deviations can affect the quality of the casting.

[0004] To address the aforementioned technical problems, Chinese Patent Application No. CN120155553A discloses a metal casting equipment for dumbbell casting production. By using multiple clamping components to clamp and fix the central mold, it can provide uniform clamping force, enabling the mold to maintain an accurate position and posture during the casting process and preventing displacement or shaking due to external forces. This helps ensure the dimensional and shape accuracy of the casting and reduces casting defects caused by mold offset. However, when aluminum liquid is poured, the high-temperature aluminum liquid is easily oxidized to form an oxide film. During pouring, the oxide film is rolled into the casting to form slag inclusions, and pores appear inside the casting. The solidification rate of the aluminum liquid is uneven, and shrinkage stress causes shrinkage cavities, resulting in low density of the casting, poor internal porosity, and serious pore defects, which affects the strength of the dumbbell structure. Summary of the Invention

[0005] In view of the problems existing in the prior art, the purpose of this invention is to provide a casting equipment for the production and processing of aluminum dumbbell castings.

[0006] To solve the above problems, the present invention adopts the following technical solution.

[0007] A casting equipment for producing aluminum dumbbell castings includes a base, a lifting seat fixedly connected to one side of the top of the base, a first servo motor fixedly connected to the top of the lifting seat, a first threaded rod fixedly connected to the output end of the first servo motor, a lifting plate threadedly connected to the outer surface of the first threaded rod, a furnace fixedly connected inside the lifting plate, an electromagnetic valve fixedly connected to the bottom of the furnace, electric slide rails arranged on both sides inside the base, a moving plate slidably connected inside the electric slide rails, a fixed mold fixedly connected to the top of the moving plate, a moving mold sleeved on the top of the fixed mold, and a slag removal component provided on the top of the moving mold.

[0008] The impurity removal assembly includes an injection port fixed to the top of the fixed mold and an air pump fixed to one side of the lifting seat. The output end of the air pump is fixedly connected to a telescopic hose. A conical cylinder is fixedly connected to the top of the injection port. An annular tube is fixedly connected to the inner side of the conical cylinder. Air outlets are evenly distributed on the outer surface of the annular tube. A fixed cylinder is fixedly connected to the top of the conical cylinder. A heating cylinder is fixedly connected to the outer surface of the conical cylinder. Heating fins are fixedly connected inside the heating cylinder. An anti-splash assembly to prevent aluminum liquid from splashing is provided inside the fixed cylinder.

[0009] Furthermore, one side of the telescopic hose is fixedly connected to one side of the heating cylinder, the interior of the heating cylinder is interconnected with the interior of the annular tube, and the air pump is connected to an external argon gas pipeline.

[0010] Furthermore, mounting bases are fixedly connected to both sides of the top of the movable plate, an electric push rod is fixedly connected to the top of the mounting base, a fixed column is fixedly connected to the output end of the electric push rod, the bottom of the fixed column is fixedly connected to the edge of the moving mold, a through groove is opened inside the mounting base, the fixed column slides in the through groove inside the mounting base, and a cylinder is fixedly connected to the middle of the bottom of the fixed mold.

[0011] Furthermore, the splash-proof assembly includes a telescopic cylinder that slides inside the fixed cylinder. The top of the telescopic cylinder is fixedly connected to the connecting ring. The inside of the connecting ring is symmetrically connected to the extrusion rods. An extrusion plate is fixedly connected to one side of the two extrusion rods that are close to each other. A magnet is fixedly connected to the bottom of the connecting ring. A drive frame is slidably connected to the outer surface of the telescopic cylinder.

[0012] Furthermore, the inner side of the drive frame is provided with an inclined surface, one side of the extrusion rod is in contact with the inclined surface of the drive frame, the magnet is attracted and fixed to the drive frame, the outer side of the magnet is provided with a heat insulation layer, and the magnet is a high-temperature resistant samarium cobalt magnet or an alnico magnet.

[0013] Furthermore, an oxygen removal assembly is provided on one side of the top of the moving mold. The oxygen removal assembly includes a fixed tube fixed to one side of the top of the fixed mold. A horizontal plate is fixedly connected to the top of the inner surface of the fixed tube, a spring is fixedly connected to the bottom of the horizontal plate, and a sealing plug is fixedly connected to the bottom of the spring.

[0014] Furthermore, the sealing plug seals the bottom of the fixed tube, the bottom of the moving mold has a receiving groove, the sealing plug is located inside the receiving groove, the bottom of the sealing plug is flush with the bottom of the moving mold, and the fixed tube is connected to an external argon gas pipeline.

[0015] Furthermore, a cooling assembly is provided at the bottom of the fixed mold. The cooling assembly includes a circular plate slidably connected inside the fixed mold and water pipes symmetrically fixed at the bottom of the fixed mold. A cooling cavity is opened inside the circular plate. Telescopic pipes are symmetrically fixedly connected to the bottom of the circular plate. The water pipes pass through the interior of the movable plate and extend out of the interior of the base. The telescopic pipes slide against each other inside the water pipes.

[0016] Furthermore, the bottom of the movable plate is provided with an ejection assembly, which includes a second servo motor fixed to the bottom of the movable plate and a circular cavity opened inside the movable plate. The output end of the second servo motor is fixedly connected to a second threaded rod, and the outer surface of the second threaded rod is threadedly connected to a rising plate. The top sides of the rising plate are fixedly connected to push rods.

[0017] Furthermore, the top of the ejector pin is fixedly connected to the bottom of the circular plate, and the ejector pin and the fixed mold slide and adapt to each other.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This solution incorporates a purification component. Argon gas enters the interior of the heating cylinder, and the heating fins, when energized, heat the argon gas. The heated argon gas slows down heat loss from the molten aluminum, preventing the low-temperature argon from lowering the surface temperature of the molten aluminum. The argon gas then enters the annular tube and is ejected through multiple outlet pipes. When the molten aluminum enters the conical cylinder, it comes into contact with the argon gas, forming an inert gas protective layer that effectively isolates external oxygen from contacting the molten aluminum, preventing the formation of oxide inclusions during casting. Furthermore, the argon gas forms bubbles in the molten aluminum. These bubbles rise slowly under buoyancy and collide with oxide inclusions in the molten aluminum. Surface tension helps adsorb the inclusion particles onto the bubble surface, reducing impurities inside the casting and preventing them from affecting the casting's density. This effectively improves the density and strength of the casting.

[0019] 2. This solution incorporates anti-splash components, which can fix the telescopic cylinder to the outer surface of the solenoid valve, ensuring that the telescopic cylinder will not slip off the outer surface of the solenoid valve. During pouring, the molten aluminum enters the interior of the conical cylinder through the telescopic cylinder, reducing the contact time between the molten aluminum and oxygen, and preventing the high-temperature molten aluminum from splashing out.

[0020] 3. This solution incorporates an oxygen removal component to supply argon gas into the fixed tube. The argon gas pushes the sealing plug, causing it to detach from the inside of the fixed tube. The argon gas then smoothly enters the interior of the mold, expelling the air inside. Once the air is expelled, the supply of argon gas to the interior of the mold stops, and the sealing plug resets to seal the fixed tube, effectively preventing secondary oxidation of the molten aluminum.

[0021] 4. This solution utilizes a combination of deoxygenation, impurity removal, and cooling components. Before pouring, the deoxygenation component removes all air from the mold, preventing air from being trapped in the molten aluminum. During pouring, argon gas is heated to maintain the flow temperature of the molten aluminum while isolating it from oxygen, preventing cold shut defects. After the casting is filled, rapid heat exchange occurs immediately through the cooling component. This effectively solves the problem of simultaneously overcoming surface oxidation and internal shrinkage porosity in dumbbell castings, further improving the overall mechanical strength and yield of the castings. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the impurity removal component structure of the present invention; Figure 3 This is a schematic cross-sectional view of the conical cylinder structure of the present invention; Figure 4 This is a schematic diagram of the splash-proof component structure of the present invention; Figure 5 This is a schematic diagram of the oxygen removal component structure of the present invention; Figure 6 This is a schematic diagram of the cooling component structure of the present invention; Figure 7 This is a schematic diagram of the ejector assembly structure of the present invention.

[0023] Explanation of the labels in the diagram: 1. Base; 2. Lifting seat; 3. First servo motor; 4. First threaded rod; 5. Lifting plate; 6. Impurity removal components; 61. Inlet; 62. Air pump; 63. Telescopic hose; 64. Heating cylinder; 65. Splash-proof assembly; 651. Telescopic cylinder; 652. Drive frame; 653. Extrusion rod; 654. Extrusion plate; 655. Connecting ring; 656. Magnet; 66. Deoxygenation assembly; 661. Fixed pipe; 662. Sealing plug; 663. Horizontal plate; 664. Spring; 67. Conical tube; 68. Heating fins; 69. Annular tube; 610. Exhaust pipe; 611. Fixed tube; 7. Cooling assembly; 71. Circular plate; 72. Cooling chamber; 73. Expansion tube; 74. Water pipe; 75. Ejector assembly; 751. Second servo motor; 752. Second threaded rod; 753. Ejector rod; 754. Rising plate; 755. Circular cavity; 8. Moving plate; 9. Mounting base; 10. Electric push rod; 11. Moving mold; 12. Furnace; 13. Electric slide rail; 14. Fixed mold; 15. Fixed column; 16. Solenoid valve. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0025] Please see Figures 1 to 7 A casting equipment for producing aluminum dumbbell castings includes a base 1, a lifting seat 2 fixedly connected to one side of the top of the base 1, a first servo motor 3 fixedly connected to the top of the lifting seat 2, a first threaded rod 4 fixedly connected to the output end of the first servo motor 3, a lifting plate 5 threadedly connected to the outer surface of the first threaded rod 4, a furnace 12 fixedly connected inside the lifting plate 5, an electromagnetic valve 16 fixedly connected to the bottom of the furnace 12, electric slide rails 13 arranged on both sides inside the base 1, a moving plate 8 slidably connected inside the electric slide rails 13, a fixed mold 14 fixedly connected to the top of the moving plate 8, a moving mold 11 sleeved on the top of the fixed mold 14, and a slag removal component 6 for removing impurities on the top of the moving mold 11.

[0026] like Figure 2 - Figure 4 As shown, the impurity removal component 6 includes an injection port 61 fixed to the top of the fixed mold 14 and an air pump 62 fixed to one side of the lifting seat 2. The output end of the air pump 62 is fixedly connected to a telescopic hose 63. A conical cylinder 67 is fixedly connected to the top of the injection port 61. An annular tube 69 is fixedly connected to the inner side of the conical cylinder 67. Air outlet pipes 610 are evenly distributed on the outer surface of the annular tube 69. A fixed cylinder 611 is fixedly connected to the top of the conical cylinder 67. A heating cylinder 64 is fixedly connected to the outer surface of the conical cylinder 67. Heating fins 68 are fixedly connected inside the heating cylinder 64. An anti-splash component 65 to prevent aluminum liquid from splashing is provided inside the fixed cylinder 611.

[0027] One side of the telescopic hose 63 is fixedly connected to one side of the heating cylinder 64, the interior of the heating cylinder 64 is connected to the interior of the annular tube 69, and the air pump 62 is connected to the external argon gas pipeline.

[0028] Mounting bases 9 are fixedly connected to both sides of the top of the movable plate 8. An electric push rod 10 is fixedly connected to the top of the mounting base 9. A fixed column 15 is fixedly connected to the output end of the electric push rod 10. The bottom of the fixed column 15 is fixedly connected to the edge of the moving mold 11. A through groove is opened inside the mounting base 9. The fixed column 15 slides in the through groove inside the mounting base 9. A cylinder is fixedly connected to the middle of the bottom of the fixed mold 14.

[0029] When casting the dumbbell part, the required raw materials are transported to the interior of the furnace 12 for high-temperature melting. After melting, the moving mold 11 is moved towards the fixed mold 14 by the electric push rod 10 driving the fixed column 15, so that the moving mold 11 and the fixed mold 14 close. The moving plate 8 and the fixed mold 14 are moved to the bottom of the furnace 12 by the electric slide rail 13, so that the fixed cylinder 611 is directly below the solenoid valve 16. At this time, the aluminum liquid inside the furnace 12 is transported to the interior of the fixed cylinder 611 by controlling the solenoid valve 16. The aluminum liquid enters the interior of the fixed mold 14 through the fixed cylinder 611, the conical cylinder 67 and the injection port 61. Before pouring the aluminum liquid, the air pump 62 is turned on to transport the external argon gas into the air pump 62. The argon gas enters the interior of the heating cylinder 64 to heat the fins. The 68 circuit generates heat to raise the temperature of the argon gas. The heated argon gas slows down the heat loss of the molten aluminum, preventing the low-temperature argon gas from lowering the surface temperature of the molten aluminum. The argon gas enters the interior of the annular tube 69 and is ejected through multiple outlet pipes 610. When the molten aluminum enters the interior of the conical cylinder 67, it comes into contact with the argon gas, which forms an inert gas protective layer. This effectively isolates the molten aluminum from external oxygen, preventing the formation of oxide inclusions during the casting process. Furthermore, the argon gas forms bubbles in the molten aluminum. These bubbles rise slowly under buoyancy and collide with oxide inclusions in the molten aluminum. Through surface tension, the inclusion particles are adsorbed onto the surface of the bubbles, thereby reducing impurities inside the casting and preventing impurities from affecting the density of the casting. This effectively improves the density and strength of the casting.

[0030] like Figure 3 - Figure 4 As shown, the splash-proof assembly 65 includes a telescopic cylinder 651 that slides inside the fixed cylinder 611. A connecting ring 655 is fixedly connected to the top of the telescopic cylinder 651. An extrusion rod 653 is symmetrically slidably connected inside the connecting ring 655. An extrusion plate 654 is fixedly connected to one side of the two extrusion rods 653 that are close to each other. A magnet 656 is fixedly connected to the bottom of the connecting ring 655. A drive frame 652 is slidably connected to the outer surface of the telescopic cylinder 651.

[0031] The inner side of the drive frame 652 is provided with a slope, one side of the extrusion rod 653 is in contact with the slope of the drive frame 652, the magnet 656 is attracted and fixed to the drive frame 652, the outer side of the magnet 656 is provided with a heat insulation layer, and the magnet 656 is a high temperature resistant samarium cobalt magnet or alnico magnet.

[0032] When pouring molten aluminum, the aluminum is directly exposed to the outside environment, resulting in a high degree of oxidation, numerous impurities, and a tendency for molten aluminum to splash, causing burns to workers. Before pouring, the telescopic cylinder 651 is pulled out from inside the fixed cylinder 611 and fitted onto the outlet of the solenoid valve 16. At this point, the drive frame 652 is pushed upwards, and its inclined surface contacts one side of the extrusion rod 653. As the drive frame 652 moves upwards, the two extrusion rods 653 approach each other, clamping the solenoid valve 16 through the extrusion plate 654. Simultaneously, the drive frame 652 is attracted and fixed by the magnet 656, ensuring that the telescopic cylinder 651 does not slip off the outer surface of the solenoid valve 16. During pouring, the molten aluminum enters the conical cylinder 67 through the telescopic cylinder 651, reducing the contact time between the molten aluminum and oxygen, and preventing the hot molten aluminum from splashing out.

[0033] like Figure 5 As shown, a deoxygenation assembly 66 is provided on one side of the top of the moving mold 11. The deoxygenation assembly 66 includes a fixed tube 661 fixed to one side of the top of the fixed mold 14. A horizontal plate 663 is fixedly connected to the top of the inner surface of the fixed tube 661. A spring 664 is fixedly connected to the bottom of the horizontal plate 663. A sealing plug 662 is fixedly connected to the bottom of the spring 664.

[0034] The sealing plug 662 seals the bottom of the fixed tube 661. The bottom of the moving mold 11 has a storage groove, and the sealing plug 662 is located inside the storage groove. The bottom of the sealing plug 662 is flush with the bottom of the moving mold 11. The fixed tube 661 is connected to the external argon gas pipeline.

[0035] Before casting, the interior of the fixed mold 14 contains a large amount of air. When the molten aluminum enters the interior of the fixed mold 14, it comes into contact with the oxygen inside the fixed mold 14, causing secondary oxidation on the surface of the molten aluminum to form a new oxide film. Before the telescopic cylinder 651 is placed on the outer surface of the solenoid valve 16, argon gas is supplied into the fixed tube 661. The argon gas pushes the sealing plug 662, causing the sealing plug 662 to detach from the inside of the fixed tube 661. The argon gas smoothly enters the interior of the fixed mold 14, expelling the air inside the fixed mold 14. After the air is expelled, the supply of argon gas to the interior of the fixed mold 14 is stopped. At this time, the sealing plug 662 is no longer under force, and the spring 664 drives the sealing plug 662 to reset. The sealing plug 662 seals the fixed tube 661 again. Then the telescopic cylinder 651 is placed on the outer surface of the solenoid valve 16, and casting is carried out again.

[0036] like Figure 6As shown, a cooling assembly 7 is provided at the bottom of the fixed mold 14. The cooling assembly 7 includes a circular plate 71 slidably connected inside the fixed mold 14 and water pipes 74 symmetrically fixed at the bottom of the fixed mold 14. A cooling cavity 72 is opened inside the circular plate 71. Telescopic pipes 73 are symmetrically fixedly connected to the bottom of the circular plate 71. The water pipes 74 pass through the interior of the movable plate 8 and extend out of the interior of the base 1. The telescopic pipes 73 slide against each other inside the water pipes 74.

[0037] like Figure 6 - Figure 7 As shown, the bottom of the movable plate 8 is provided with an ejector assembly 75. The ejector assembly 75 includes a second servo motor 751 fixed to the bottom of the movable plate 8 and a circular cavity 755 opened inside the movable plate 8. The output end of the second servo motor 751 is fixedly connected to a second threaded rod 752. The outer surface of the second threaded rod 752 is threadedly connected to a rising plate 754. The top two sides of the rising plate 754 are fixedly connected to push rods 753.

[0038] The top of the ejector pin 753 is fixedly connected to the bottom of the circular plate 71, and the ejector pin 753 and the fixed mold 14 slide and adapt to each other.

[0039] After the casting is completed, cooling water is supplied to the interior of one of the water pipes 74. The cooling water enters the interior of the cooling chamber 72 through the interior of the telescopic pipe 73 via the water pipe 74. The aluminum liquid in the cooling chamber 72 transfers heat to the water flow inside the cooling chamber 72 through heat transfer. The water flow carries away the heat and discharges the heat-carrying water to the outside through the other water pipe 74, thereby accelerating the cooling speed of the casting. After cooling, the second servo motor 751 drives the second threaded rod 752 to rotate. The rising plate 754 drives the two push rods 753 to push the circular plate 71 upward. The circular plate 71 ejects the casting inside the fixed mold 14 and demolds it, reducing the drawbacks of manual removal.

[0040] Usage: Before casting, argon gas is supplied into the fixed tube 661. The argon gas pushes the sealing plug 662, causing the sealing plug 662 to detach from the fixed tube 661. The argon gas smoothly enters the interior of the fixed mold 14, expels the air inside the fixed mold 14. After the air is expelled, the supply of argon gas to the interior of the fixed mold 14 is stopped, forming a slightly positive pressure inert environment. This completely eliminates the formation of internal pores caused by air being drawn in after the aluminum liquid enters the fixed mold 14. At this time, the sealing plug 662 is no longer under force, and the spring 664 drives the sealing plug 662 to reset. The sealing plug 662 seals the fixed tube 661 again. The telescopic cylinder 651 is pulled out from the inside of the fixed cylinder 611 and fitted onto the outlet of the solenoid valve 16. At this time, the drive frame 652 is pushed upward, and the inclined surface of the drive frame 652 contacts one side of the extrusion rod 653. As the drive frame 652 moves upward, the two extrusion rods 653 approach each other and clamp the solenoid valve 16 through the extrusion plate 654. At the same time, the drive frame 652 is attracted and fixed by the magnet 656, which can ensure that the telescopic cylinder 651 will not slip off the outer surface of the solenoid valve 16. During the pouring, the aluminum liquid enters the inside of the conical cylinder 67 through the telescopic cylinder 651, isolating the contact between air and aluminum liquid and reducing the contact time between aluminum liquid and oxygen. The air pump 62 is turned on to deliver argon gas from the outside into the air pump 62. The argon gas enters the heating cylinder 64. The heating fins 68 are energized to generate temperature to heat the argon gas. The argon gas enters the annular pipe 69 and is ejected through multiple outlet pipes 610. The electromagnetic valve 16 is controlled to deliver the molten aluminum inside the furnace 12 into the fixed cylinder 611. When the molten aluminum enters the conical cylinder 67, it comes into contact with the argon gas. The argon gas forms an inert gas protective layer, which effectively isolates the molten aluminum from external oxygen and prevents the formation of oxide inclusions during the casting process. The argon gas also forms bubbles in the molten aluminum. The bubbles rise slowly under the action of buoyancy and collide with the oxide inclusions in the molten aluminum. The inclusion particles are adsorbed onto the surface of the bubbles by the action of surface tension. The heated argon gas can slow down the heat loss of the molten aluminum. The high temperature argon gas compensates for the heat loss of the molten aluminum when it flows through the pipeline and maintains the high fluidity of the molten aluminum.

[0041] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and its improved concepts, should be covered within the scope of protection of the present invention.

Claims

1. A casting equipment for producing aluminum dumbbell castings, comprising a base (1), a lifting seat (2) fixedly connected to one side of the top of the base (1), a first servo motor (3) fixedly connected to the top of the lifting seat (2), a first threaded rod (4) fixedly connected to the output end of the first servo motor (3), a lifting plate (5) threadedly connected to the outer surface of the first threaded rod (4), a furnace (12) fixedly connected inside the lifting plate (5), an electromagnetic valve (16) fixedly connected to the bottom of the furnace (12), electric slide rails (13) provided on both sides inside the base (1), a moving plate (8) slidably connected inside the electric slide rails (13), a fixed mold (14) fixedly connected to the top of the moving plate (8), and a moving mold (11) sleeved on the top of the fixed mold (14); Its features are: The top of the moving mold (11) is provided with a slag removal component (6). The impurity removal component (6) includes an injection port (61) fixed on the top of the fixed mold (14) and an air pump (62) fixed on one side of the lifting seat (2). The output end of the air pump (62) is fixedly connected to a telescopic hose (63). A conical cylinder (67) is fixedly connected to the top of the injection port (61). An annular tube (69) is fixedly connected to the inner side of the conical cylinder (67). An air outlet pipe (610) is evenly opened on the outer surface of the annular tube (69). A fixed cylinder (611) is fixedly connected to the top of the conical cylinder (67). A heating cylinder (64) is fixedly connected to the outer surface of the conical cylinder (67).

2. The casting equipment for producing aluminum dumbbell castings according to claim 1, characterized in that: Heating fins (68) are fixedly connected inside the heating cylinder (64). A splash-proof component (65) to prevent aluminum liquid from splashing is provided inside the fixed cylinder (611). One side of the telescopic hose (63) is fixedly connected to one side of the heating cylinder (64). The inside of the heating cylinder (64) is connected to the inside of the annular pipe (69). The air pump (62) is connected to an external argon gas pipeline.

3. The casting equipment for producing aluminum dumbbell castings according to claim 1, characterized in that: Mounting bases (9) are fixedly connected to both sides of the top of the movable plate (8). An electric push rod (10) is fixedly connected to the top of the mounting base (9). A fixed column (15) is fixedly connected to the output end of the electric push rod (10). The bottom of the fixed column (15) is fixedly connected to the edge of the moving mold (11). A through groove is opened inside the mounting base (9). The fixed column (15) slides inside the through groove of the mounting base (9). A cylinder is fixedly connected to the middle of the bottom of the fixed mold (14).

4. The casting equipment for producing aluminum dumbbell castings according to claim 2, characterized in that: The splash-proof assembly (65) includes a telescopic cylinder (651) that slides inside a fixed cylinder (611). The top of the telescopic cylinder (651) is fixedly connected to the connecting ring (655). The inside of the connecting ring (655) is symmetrically connected to the extrusion rods (653). The two extrusion rods (653) are fixedly connected to an extrusion plate (654) on the side where they are close to each other. The bottom of the connecting ring (655) is fixedly connected to a magnet (656). The outer surface of the telescopic cylinder (651) is slidably connected to a drive frame (652).

5. The casting equipment for producing aluminum dumbbell castings according to claim 4, characterized in that: The inner side of the drive frame (652) is provided with an inclined surface, one side of the extrusion rod (653) is in contact with the inclined surface of the drive frame (652), the magnet (656) is attracted and fixed to the drive frame (652), the outer side of the magnet (656) is provided with a heat insulation layer, and the magnet (656) is a high temperature resistant samarium cobalt magnet or an aluminum nickel cobalt magnet.

6. The casting equipment for producing aluminum dumbbell castings according to claim 1, characterized in that: A deoxygenation assembly (66) is provided on one side of the top of the moving mold (11). The deoxygenation assembly (66) includes a fixed tube (661) fixed on one side of the top of the fixed mold (14). A horizontal plate (663) is fixedly connected to the top of the inner surface of the fixed tube (661). A spring (664) is fixedly connected to the bottom of the horizontal plate (663). A sealing plug (662) is fixedly connected to the bottom of the spring (664).

7. The casting equipment for producing aluminum dumbbell castings according to claim 6, characterized in that: The sealing plug (662) seals the bottom of the fixed tube (661). The bottom of the moving mold (11) has a storage groove. The sealing plug (662) is located inside the storage groove. The bottom of the sealing plug (662) is flush with the bottom of the moving mold (11). The fixed tube (661) is connected to the external argon gas pipeline.

8. The casting equipment for producing aluminum dumbbell castings according to claim 1, characterized in that: A cooling assembly (7) is provided at the bottom of the fixed mold (14). The cooling assembly (7) includes a circular plate (71) slidably connected inside the fixed mold (14) and water pipes (74) symmetrically fixed at the bottom of the fixed mold (14). A cooling cavity (72) is provided inside the circular plate (71). Telescopic pipes (73) are symmetrically fixedly connected to the bottom of the circular plate (71). The water pipes (74) penetrate the interior of the movable plate (8) and extend out of the interior of the base (1). The telescopic pipes (73) slide against each other inside the water pipes (74).

9. The casting equipment for producing aluminum dumbbell castings according to claim 1, characterized in that: The bottom of the movable plate (8) is provided with an ejection assembly (75). The ejection assembly (75) includes a second servo motor (751) fixed to the bottom of the movable plate (8) and a circular cavity (755) opened inside the movable plate (8). The output end of the second servo motor (751) is fixedly connected to a second threaded rod (752). The outer surface of the second threaded rod (752) is threadedly connected to a rising plate (754). The top sides of the rising plate (754) are fixedly connected to push rods (753).

10. The casting equipment for producing aluminum dumbbell castings according to claim 9, characterized in that: The top of the ejector pin (753) is fixedly connected to the bottom of the circular plate (71), and the ejector pin (753) and the fixed mold (14) slide and adapt to each other.

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