Multi-variety adjustable low pressure casting machine

Abstract

The application discloses a multi-variety adjustable low-pressure casting machine and relates to the casting technical field.The application comprises a workbench, the inner wall of the workbench is provided with a low-pressure casting furnace, the side surface of the low-pressure casting furnace is fixedly provided with a feeder, the top of the workbench is fixedly provided with two symmetrical material taking frames, the outer wall of the low-pressure casting furnace is fixedly provided with a connecting pipe, the inner wall of the workbench is fixedly penetrated with a liquid lifting pipe, and the outer wall of the liquid lifting pipe is fixedly penetrated in the top of the low-pressure casting furnace. The low-pressure casting furnace, the feeder, the material taking frame, the connecting pipe, the liquid lifting pipe, the driving assembly, the electric push rod one, the long block, the upper mold and the lower mold are matched, the casted casting is conveniently taken, the casting with different shapes can be adjusted, the production flexibility and adaptability are ensured, the corresponding machine does not need to be selected according to different shapes, and the production efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of casting technology, specifically to a multi-variety adjustable low-pressure casting machine. Background Technology

[0002] Low-pressure casting machines are equipment used for casting metals such as aluminum alloys and zinc alloys. They use gas pressure lower than atmospheric pressure to inject molten metal into a mold. This equipment is simple to operate, suitable for mass production, and is especially suitable for castings with complex shapes. Common application areas include automotive, electronics, and machinery manufacturing.

[0003] Chinese patent CN203972818U discloses a multi-variety adjustable low-pressure casting machine. A frame-type machine frame is fixed above the four corners of the base plate worktable. A portal-shaped monorail electric hoist lifting mechanism is fixed in the middle of the frame. Symmetrically vertically parallel lifting adjustment device slides are fixed on both sides of the machine frame, parallel to the monorail electric hoist lifting mechanism. Lifting adjustment devices are symmetrically arranged within the two lifting adjustment device slides. Guide rods are inserted at the four corners of the lifting adjustment devices. A mold-closing template is fixed to the inner end of the guide rod, and a cylinder seat is fixed to the outer end of the guide rod. An opening and closing cylinder is fixed in the middle between the cylinder seat and the lifting adjustment device. This multi-variety adjustable low-pressure casting machine greatly increases the rigidity of the worktable, reduces weight, improves mold-closing conditions, enhances product quality, is easy to use, and saves energy.

[0004] However, the current low-pressure casting machine has the following problems: the height, length or width of the low-pressure casting machine can only be adjusted for a certain type of item to be cast, making it difficult to adjust and cast different shapes of castings. Therefore, it limits the flexibility and adaptability of production. In addition, the selection of the corresponding machine according to different shapes requires frequent readjustment or setting, which will reduce production efficiency. Therefore, we have proposed a multi-variety adjustable low-pressure casting machine. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a multi-variety adjustable low-pressure casting machine, which solves the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solution: a multi-variety adjustable low-pressure casting machine, including a worktable, a low-pressure casting furnace is provided on the inner wall of the worktable, a feeder is fixed on the side of the low-pressure casting furnace, two symmetrical material picking frames are fixed on the top of the worktable, a connecting pipe is fixed on the outer wall of the low-pressure casting furnace, a liquid riser is fixedly passed through the inner wall of the worktable, and the lower part of the outer wall of the liquid riser is fixedly passed through the top of the low-pressure casting furnace. A drive assembly is provided on the side of the worktable, the drive assembly is provided with multiple moving ends, and a lower mold is fixed on the side of each of the multiple moving ends. The casting grooves of the multiple lower molds are different. An electric push rod is fixed on the top support of the worktable. A long block is slidably installed on the telescopic end of the electric push rod, and an upper mold corresponding to the number of lower molds is fixed on the bottom of the long block.

[0007] The side of the workbench is provided with an anti-blocking device, which includes an electric push rod II. The outer wall of the fixed end of the electric push rod II is fixed to the side of the workbench. A connecting frame is fixed to the top of the telescopic end of the electric push rod II. Multiple guide cone columns are rotatably installed on the top of the connecting frame. A crushing column is fixed to the top of each of the multiple guide cone columns. A circular groove corresponding to the lower mold slot is opened on the top of the workbench.

[0008] A support plate is fixed to the side of the workbench, a vertical frame is fixed to the side of the support plate, a horizontal frame is fixed to the bottom of the vertical frame, a movable ring is fixed to the side of the horizontal frame, a fixed frame is fixed to the inner wall of the workbench, a track column is rotatably installed on the top of the fixed frame, an elastic telescopic rod is fixed to the top of the track column, the telescopic end of the elastic telescopic rod is fixed to the bottom of the guide cone column, and the telescopic end of the elastic telescopic rod is fixed through the bottom of the connecting frame.

[0009] The drive assembly includes a fixed block, a motor is fixed to the side of the fixed block, a threaded rod is fixed to the output shaft of the motor, and multiple threaded blocks are threadedly connected to the outer wall of the threaded rod. The threaded blocks are provided as the moving end of the drive assembly. A limiting rod for limiting the sliding position of the lower mold is fixed to the side of the worktable by a bracket. The inner wall of the lower mold is provided with slots for aluminum liquid to enter through the riser pipe. A vertical rod is fixed to the side of the lower mold, and the upper mold is slidably mounted on the outer wall of the vertical rod.

[0010] Each of the threaded blocks has a trapezoidal block fixed to its top. A T-shaped sliding plate is slidably installed on the inner wall of the support plate. A positioning wedge for positioning the trapezoidal block is fixed to the bottom of the T-shaped sliding plate. A spring is provided between the T-shaped sliding plate and the support plate.

[0011] According to the above technical solution, the top of the T-shaped sliding plate is provided with an anti-contamination device, which includes a triangular bracket. The bottom of the triangular bracket is fixed to the top of the T-shaped sliding plate. Multiple spheres are fixed to the side of the triangular bracket. A moving block is slidably installed on the side of the worktable. Several hemispherical blocks are fixed to the side of the moving block. A limiting block is fixed to the side of the worktable. A spring is provided between the moving block and the limiting block. A multi-impact plate is fixedly connected to the bottom of the moving block. A silicon carbide filter plate is fixed to the inner wall of the feeder. A support block is snapped into the inner wall of the feeder.

[0012] According to the above technical solution, several hemispherical blocks are located on the displacement trajectories of multiple spheres, and the feeder and silicon carbide filter plate are both located on the displacement trajectories of multiple striking plates.

[0013] According to the above technical solution, an annular inclined groove is provided on the outer wall of the track column, and an abutment block for sliding installation inside the annular inclined groove of the track column is fixedly connected inside the movable ring.

[0014] This invention provides a multi-variety adjustable low-pressure casting machine. It has the following beneficial effects:

[0015] (1) The present invention facilitates the removal of castings after casting by using a low-pressure casting furnace, feeder, material picking frame, connecting pipe, riser pipe, drive assembly, electric push rod, long block, upper mold, and lower mold. Thus, it can adjust the casting to produce castings of different shapes, ensuring the flexibility and adaptability of production. It also eliminates the need to select the corresponding machine according to different shapes, thus improving production efficiency. At the same time, through the cooperation of the lower mold, limit rod, trapezoidal block, support plate, T-shaped sliding plate, positioning wedge, and spring, the reset of the positioning wedge will position the trapezoidal block. The positioning of the trapezoidal block will enable the lower mold to be positioned through the threaded block, thereby ensuring that the slot of the lower mold is located directly above the riser pipe. This avoids misalignment between the slot of the lower mold and the riser pipe, which would lead to uneven aluminum flow and casting defects such as porosity and inclusions.

[0016] (2) In this invention, through the cooperation of a silicon carbide filter plate and a feeder, the molten aluminum passes through the silicon carbide filter plate, which filters out oxide inclusions in the molten aluminum, thus making the obtained molten aluminum purer and ensuring that the casting has higher mechanical properties, surface smoothness and strength. At the same time, through the cooperation of a triangular bracket, a ball, a moving block, a hemispherical block, a limiting block, a spring, a multi-beating plate, a silicon carbide filter plate and a T-shaped sliding plate, the reciprocating motion of the moving block will drive the multi-beating plate to continuously beat the feeder and the silicon carbide filter plate, thereby avoiding the aluminum The liquid residue remains inside the feeder, and can vibrate the oxide inclusions filtered by the silicon carbide filter plate off the surface of the silicon carbide filter plate, preventing the oxide inclusions from constantly blocking the surface of the silicon carbide filter plate and causing the aluminum liquid to have difficulty passing through the silicon carbide filter plate; at the same time, through the cooperation of the support block and the feeder, the oxide inclusions vibrated off will accumulate on the top of the support block, and then the operator can remove the support block from the bottom of the feeder. Therefore, the support block can bring down the oxide inclusions on the top for cleaning, thereby avoiding the problem of oxide inclusions accumulating in the feeder.

[0017] (3) In this invention, through the cooperation of electric push rod II, connecting frame, guide cone column, crushing column, circular groove, and lower mold, the upward movement of the connecting frame will drive the guide cone column to move upward and stretch the extension end of the elastic telescopic rod. The movement of the guide cone column will drive the crushing column to insert into the groove and circular groove of the lower mold, thereby breaking up the solidified aluminum liquid in the groove of the lower mold and avoiding the problem of solidified aluminum liquid clogging the groove of the lower mold. At the same time, through the cooperation of guide cone column, crushing column, circular groove, vertical frame, horizontal frame, moving ring, track column, and elastic telescopic rod, the rotation of the track column will drive the elastic telescopic rod to rotate, the rotation of the elastic telescopic rod will drive the guide cone column to rotate, the rotation of the guide cone column will drive the crushing column to rotate, and the rotation of the crushing column will further improve the effect of crushing solidified aluminum liquid. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the entire invention;

[0019] Figure 2 This is a schematic diagram of the structure of the threaded block in this invention;

[0020] Figure 3 For the present invention Figure 2 Schematic diagram of the structure at point A in the middle;

[0021] Figure 4 This is a schematic diagram of the structure of the lower mold of the present invention;

[0022] Figure 5 This is a schematic diagram of the structure of the pollution prevention device of the present invention;

[0023] Figure 6This is a schematic diagram of a partial structure of the anti-clogging device of the present invention. Figure 1 ;

[0024] Figure 7 This is a schematic diagram of a partial structure of the anti-clogging device of the present invention. Figure 2 ;

[0025] Figure 8 For the present invention Figure 7 Schematic diagram of the structure at point B;

[0026] Figure 9 For the present invention Figure 7 Schematic diagram of the structure at point C.

[0027] In the diagram: 1. Workbench; 2. Low-pressure casting furnace; 201. Feeder; 202. Material handling frame; 3. Connecting pipe; 4. Lifting pipe; 5. Drive assembly; 51. Fixing block; 52. Motor; 53. Threaded rod; 54. Threaded block; 6. Electric push rod one; 7. Long block; 8. Anti-pollution device; 81. Triangular bracket; 82. Sphere; 83. Moving block; 84. Hemispherical block; 85. Restricting block; 86. Spring two; 87. Multiple striking plate; 88. Silicon carbide filter Plate; 89. Support block; 9. Anti-blocking device; 91. Electric push rod II; 92. Connecting frame; 93. Guide cone column; 94. Crushing column; 95. Circular groove; 96. Vertical frame; 97. Horizontal frame; 98. Moving ring; 99. Track column; 910. Elastic telescopic rod; 911. Fixed frame; 10. Upper mold; 11. Lower mold; 12. Limiting rod; 13. Trapezoidal block; 14. Support plate; 15. T-shaped sliding plate; 16. Positioning inclined block; 17. Spring I. Detailed Implementation

[0028] 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.

[0029] Please see Figures 1-9One embodiment of the present invention is as follows: a multi-variety adjustable low-pressure casting machine, including a workbench 1, a low-pressure casting furnace 2 disposed on the inner wall of the workbench 1, a feeder 201 fixed on the side of the low-pressure casting furnace 2, two symmetrical material picking frames 202 fixed on the top of the workbench 1, a connecting pipe 3 fixed on the outer wall of the low-pressure casting furnace 2, a liquid riser 4 fixedly passing through the inner wall of the workbench 1, and the lower part of the outer wall of the liquid riser 4 fixedly passing through the top of the low-pressure casting furnace 2, a drive assembly 5 disposed on the side of the workbench 1, the drive assembly 5 being provided with multiple moving ends, each of the multiple moving ends having a lower mold 11 fixed on its side, the casting grooves of the multiple lower molds 11 being different, an electric push rod 6 fixedly fixed on the top support of the workbench 1, a long block 7 slidably mounted on the telescopic end of the electric push rod 6, and a corresponding number of lower molds 11 fixedly fixed at the bottom of the long block 7. The upper mold 10 and the drive assembly 5 include a fixed block 51, a motor 52 fixed to the side of the fixed block 51, a threaded rod 53 fixed to the output shaft of the motor 52, and multiple threaded blocks 54 threadedly connected to the outer wall of the threaded rod 53. The threaded blocks 54 are the moving end of the drive assembly 5. The side of the worktable 1 is fixed with a limiting rod 12 for limiting the sliding position of the lower mold 11 by a bracket. The inner wall of the lower mold 11 is provided with slots for aluminum liquid to enter through the riser pipe 4. A vertical rod is fixed to the side of the lower mold 11, and the upper mold 10 is slidably installed on the outer wall of the vertical rod. With the above structure, it is convenient to remove the castings after casting, so it is possible to adjust the casting to produce castings of different shapes, ensuring the flexibility and adaptability of production, and eliminating the need to select the corresponding machine according to different shapes, thus increasing production efficiency.

[0030] A trapezoidal block 13 is fixed to the top of each of the multiple threaded blocks 54. A support plate 14 is fixed to the side of the worktable 1. A T-shaped sliding plate 15 is slidably installed on the inner wall of the support plate 14. A positioning inclined block 16 for positioning the trapezoidal block 13 is fixed to the bottom of the T-shaped sliding plate 15. A spring 17 is provided between the T-shaped sliding plate 15 and the support plate 14. With the above structure, the reset of the positioning inclined block 16 will position the trapezoidal block 13. The positioning of the trapezoidal block 13 will be achieved by the threaded block 54 to position the lower mold 11, thereby ensuring that the slot of the lower mold 11 is located directly above the riser pipe 4, avoiding misalignment between the slot of the lower mold 11 and the riser pipe 4, which would cause uneven aluminum flow and casting defects such as porosity and inclusions.

[0031] A contamination prevention device 8 is provided on the top of the T-shaped sliding plate 15. The contamination prevention device 8 includes a triangular bracket 81, the bottom of which is fixed to the top of the T-shaped sliding plate 15. Multiple spheres 82 are fixed to the side of the triangular bracket 81. A moving block 83 is slidably mounted on the side of the worktable 1. Several hemispherical blocks 84 are fixed to the side of the moving block 83. A limiting block 85 is fixed to the side of the worktable 1. A spring 86 is provided between the moving block 83 and the limiting block 85. A multi-impact plate 87 is fixedly connected to the bottom of the moving block 83. A silicon carbide filter plate 88 is fixed to the inner wall of the feeder 201. A support block 89 is engaged with the inner wall of the feeder 201. Several hemispherical blocks 84 are located on the displacement trajectory of multiple spheres 82. The feeder 201 and the silicon carbide filter plate 88 are both located on the displacement trajectory of the multi-impact plate 87. Through the above structure, the aluminum liquid will pass through the silicon carbide filter plate 88, and the silicon carbide filter plate 88 will filter the aluminum liquid. The process filters out oxide inclusions in the molten aluminum, resulting in a purer molten aluminum and ensuring that the castings have higher mechanical properties, surface smoothness, and strength. The reciprocating motion of the moving block 83 causes the multiple striking plates 87 to continuously strike the feeder 201 and the silicon carbide filter plate 88, preventing molten aluminum from remaining inside the feeder 201. It also vibrates the oxide inclusions filtered by the silicon carbide filter plate 88 off its surface, preventing them from obstructing the filter plate and hindering the molten aluminum from passing through. Simultaneously, the dislodged oxide inclusions accumulate on top of the support block 89, which can then be removed from the bottom of the feeder 201 by the operator. This allows the support block 89 to remove the oxide inclusions from the top for cleaning, preventing their accumulation in the feeder 201.

[0032] In operation, molten aluminum is first poured into the low-pressure casting furnace 2 through the feeder 201. Based on the desired shape of the casting, the motor 52 is started. The output shaft of the motor 52 causes the threaded rod 53 to rotate. The rotation of the threaded rod 53 causes multiple threaded blocks 54 to move. The movement of the threaded blocks 54 moves the lower mold 11. The movement of the lower mold 11, in turn, moves the upper mold 10 via the vertical rod. The movement of the upper mold 10 then moves the long block 7 along the bottom of the telescopic end of the electric push rod 6, thereby moving the slot of the lower mold 11, which has the same shape as the casting, above the riser pipe 4. Then, the electric push rod 6 is activated. The telescopic end of the electric push rod 6 pushes the long block 7 downward. The downward movement of the long block 7 causes the upper mold 10 to move downward along the outer wall of the vertical rod, thereby bringing the upper mold 10 into contact with the lower mold 11. Then, the compressed air is discharged into the low-pressure casting furnace 2 through the connecting pipe 3 by the air compressor on the outer wall. With the help of the pressure above the molten aluminum, the molten aluminum is forced to flow upward through the connecting pipe 3 into the corresponding chamber of the lower mold 11, thus waiting for the casting to form. After the casting is completed, if other shapes need to be cast, the above operation is simply repeated. When not in use... The upper mold 10 and lower mold 11 are positioned within the material handling frame 202, facilitating the handling of the finished castings. This allows for the production of castings in various shapes, ensuring flexibility and adaptability in production. Furthermore, it eliminates the need to select the appropriate machine for each shape, thus improving production efficiency. When the threaded block 54 moves the lower mold 11 to the riser pipe 4, the movement of the threaded block 54 causes the trapezoidal block 13 to move. As the trapezoidal block 13 moves, its inclined surface abuts against the inclined surface of the positioning inclined block 16, pushing the positioning inclined block 16 upwards. The movement of the positioning inclined block 16 then moves the T... The T-shaped sliding plate 15 moves upward along the inner wall of the support plate 14 and compresses the spring 17. When the trapezoidal block 13 moves to the middle of the positioning inclined block 16, the spring 17 will drive the T-shaped sliding plate 15 and the positioning inclined block 16 to reset through its own elasticity. The reset of the positioning inclined block 16 will position the trapezoidal block 13. The positioning of the trapezoidal block 13 will enable the lower mold 11 to be positioned through the threaded block 54, thereby ensuring that the slot of the lower mold 11 is located directly above the riser pipe 4, avoiding misalignment between the slot of the lower mold 11 and the riser pipe 4, which would cause uneven flow of aluminum liquid and result in casting defects such as porosity and inclusions.

[0033] As molten aluminum is poured into the low-pressure casting furnace 2 through the feeder 201, it passes through a silicon carbide filter plate 88. The filter plate 88 removes oxide inclusions from the molten aluminum, resulting in a purer molten aluminum and ensuring the castings have higher mechanical properties, surface smoothness, and strength. As the T-shaped sliding plate 15 moves upward, it drives the triangular support 81 upward. This upward movement of the triangular support 81 drives the ball 82 upward. The ball 82's movement contacts the hemispherical block 84, pushing it away from the ball 82. The movement of the hemispherical block 84 causes the moving block 83 to press against the second spring 86. When the ball 82 no longer contacts the hemispherical block 84, the second spring 86, through its own elasticity, causes the moving block 83 and the hemispherical block 84 to reset. The reciprocating motion causes the moving block 83 to move back and forth. This reciprocating motion of the moving block 83 causes the multiple striking plates 87 to continuously strike the feeder 201 and the silicon carbide filter plate 88. This prevents molten aluminum from remaining inside the feeder 201 and shakes the oxide inclusions filtered by the silicon carbide filter plate 88 off its surface, preventing the oxide inclusions from obstructing the surface of the silicon carbide filter plate 88 and hindering the passage of molten aluminum. The oxide inclusions shaken off accumulate on top of the support block 89, which is then removed from the bottom of the feeder 201 by the operator. Thus, the support block 89 can remove the oxide inclusions from the top for cleaning, preventing the accumulation of oxide inclusions in the feeder 201.

[0034] Please see Figures 1-9 Based on the above embodiments, in another embodiment of the present invention, an anti-blocking device 9 is provided on the side of the workbench 1. The anti-blocking device 9 includes an electric push rod 91. The outer wall of the fixed end of the electric push rod 91 is fixed to the side of the workbench 1. A connecting frame 92 is fixed to the top of the telescopic end of the electric push rod 91. Multiple guide cone columns 93 are rotatably installed on the top of the connecting frame 92. A breaking column 94 is fixed to the top of each of the multiple guide cone columns 93. A circular groove 95 corresponding to the slot of the lower mold 11 is opened on the top of the workbench 1. With the above structure, the upward movement of the connecting frame 92 will drive the guide cone columns 93 to move upward and stretch the telescopic end of the elastic telescopic rod 910. The movement of the guide cone columns 93 will drive the breaking column 94 to insert into the slot and the circular groove 95 of the lower mold 11, thereby breaking up the solidified aluminum liquid in the slot of the lower mold 11 and avoiding the problem of the solidified aluminum liquid blocking the slot of the lower mold 11.

[0035] A vertical frame 96 is fixed to the side of the support plate 14, a horizontal frame 97 is fixed to the bottom of the vertical frame 96, and a moving ring 98 is fixed to the side of the horizontal frame 97. A fixed frame 911 is fixed to the inner wall of the worktable 1. A track column 99 is rotatably mounted on the top of the fixed frame 911. An elastic telescopic rod 910 is fixed to the top of the track column 99. The telescopic end of the elastic telescopic rod 910 is fixed to the bottom of the guide cone column 93. The telescopic end of the elastic telescopic rod 910 is fixed to the bottom of the connecting frame 92. An annular inclined groove is opened on the outer wall of the track column 99. An abutment block for sliding installation inside the annular inclined groove of the track column 99 is fixedly connected inside the moving ring 98. With the above structure, the rotation of the track column 99 will drive the elastic telescopic rod 910 to rotate. The rotation of the elastic telescopic rod 910 will drive the guide cone column 93 to rotate. The rotation of the guide cone column 93 will drive the crushing column 94 to rotate. The rotation of the crushing column 94 will further improve the effect of crushing solidified aluminum liquid.

[0036] In use, when the slot of the lower mold 11 to be used is directly above the riser pipe 4, the slot of the lower mold 11 in the material pick-up frame 202 will be directly above the circular groove 95. After the casting is removed from the material pick-up frame 202, the electric push rod 2 91 is activated. The output shaft of the electric push rod 2 91 will drive the connecting frame 92 to move upward. The upward movement of the connecting frame 92 will drive the guide cone column 93 to move upward and stretch the telescopic end of the elastic telescopic rod 910. The movement of the guide cone column 93 will drive the crushing column 94 to insert into the slot and circular groove 95 of the lower mold 11, thereby crushing the solidified aluminum liquid in the slot of the lower mold 11. This avoids the problem of aluminum molten solids clogging the slot of the lower mold 11; and the movement of the triangular bracket 81 will drive the vertical bracket 96 to move, the movement of the vertical bracket 96 will drive the horizontal bracket 97 to move, the movement of the horizontal bracket 97 will drive the contact block inside the moving ring 98 to move back and forth along the inner wall of the annular inclined groove of the track column 99, thereby causing the track column 99 to rotate, the rotation of the track column 99 will drive the elastic telescopic rod 910 to rotate, the rotation of the elastic telescopic rod 910 will drive the guide cone column 93 to rotate, the rotation of the guide cone column 93 will drive the crushing column 94 to rotate, and the rotation of the crushing column 94 will further improve the effect of crushing aluminum molten solids.

[0037] The above description is only a preferred embodiment of the present invention, but 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 inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A multi-variety adjustable low-pressure casting machine, including a worktable (1), characterized in that: The inner wall of the workbench (1) is provided with a low-pressure casting furnace (2). A feeder (201) is fixed on the side of the low-pressure casting furnace (2). Two symmetrical material picking frames (202) are fixed on the top of the workbench (1). A connecting pipe (3) is fixed on the outer wall of the low-pressure casting furnace (2). A liquid riser (4) is fixed through the inner wall of the workbench (1). The lower part of the outer wall of the liquid riser (4) is fixed through the top of the low-pressure casting furnace (2). A drive assembly (5) is provided on the side of the workbench (1). The drive assembly (5) is provided with multiple moving ends. A lower mold (11) is fixed on the side of each of the multiple moving ends. The casting grooves of the multiple lower molds (11) are different. An electric push rod (6) is fixed on the top support of the workbench (1). A long block (7) is slidably installed on the telescopic end of the electric push rod (6). An upper mold (10) corresponding to the number of lower molds (11) is fixed on the bottom of the long block (7). The workbench (1) is provided with an anti-blocking device (9) on its side. The anti-blocking device (9) includes an electric push rod (91). The outer wall of the fixed end of the electric push rod (91) is fixed to the side of the workbench (1). A connecting frame (92) is fixed to the top of the telescopic end of the electric push rod (91). Multiple guide cone columns (93) are rotatably installed on the top of the connecting frame (92). A breaking column (94) is fixed to the top of each of the multiple guide cone columns (93). A circular groove (95) corresponding to the slot of the lower mold (11) is opened on the top of the workbench (1). A support plate (14) is fixed to the side of the workbench (1), a vertical frame (96) is fixed to the side of the support plate (14), a horizontal frame (97) is fixed to the bottom of the vertical frame (96), a moving ring (98) is fixed to the side of the horizontal frame (97), a fixed frame (911) is fixed to the inner wall of the workbench (1), a track column (99) is rotatably installed on the top of the fixed frame (911), an elastic telescopic rod (910) is fixed to the top of the track column (99), the telescopic end of the elastic telescopic rod (910) is fixed to the bottom of the guide cone column (93), and the telescopic end of the elastic telescopic rod (910) is fixed to the bottom of the connecting frame (92). The drive assembly (5) includes a fixed block (51), a motor (52) is fixed to the side of the fixed block (51), a threaded rod (53) is fixed to the output shaft of the motor (52), and a plurality of threaded blocks (54) are threaded to the outer wall of the threaded rod (53). The threaded blocks (54) are provided as the moving end of the drive assembly (5). The side of the worktable (1) is fixed with a limiting rod (12) for limiting the sliding position of the lower mold (11) by a bracket. The inner wall of the lower mold (11) is provided with slots for entering the aluminum liquid through the riser pipe (4). A vertical rod is fixed to the side of the lower mold (11), and the upper mold (10) is slidably installed on the outer wall of the vertical rod. A trapezoidal block (13) is fixed to the top of each of the multiple threaded blocks (54). A T-shaped sliding plate (15) is slidably installed on the inner wall of the support plate (14). A positioning inclined block (16) for positioning the trapezoidal block (13) is fixed to the bottom of the T-shaped sliding plate (15). A spring (17) is provided between the T-shaped sliding plate (15) and the support plate (14).

2. The multi-variety adjustable low-pressure casting machine according to claim 1, characterized in that: The top of the T-shaped sliding plate (15) is provided with an anti-pollution device (8). The anti-pollution device (8) includes a triangular bracket (81). The bottom of the triangular bracket (81) is fixed to the top of the T-shaped sliding plate (15). Multiple spheres (82) are fixed on the side of the triangular bracket (81). A moving block (83) is slidably installed on the side of the workbench (1). Several hemispherical blocks (84) are fixed on the side of the moving block (83). A limiting block (85) is fixed on the side of the workbench (1). A spring (86) is provided between the moving block (83) and the limiting block (85). A multi-striking plate (87) is fixedly connected to the bottom of the moving block (83). A silicon carbide filter plate (88) is fixed on the inner wall of the feeder (201). A support block (89) is snapped onto the inner wall of the feeder (201).

3. The multi-variety adjustable low-pressure casting machine according to claim 2, characterized in that: Several hemispherical blocks (84) are located on the displacement trajectory of multiple spheres (82), and the feeder (201) and silicon carbide filter plate (88) are both located on the displacement trajectory of the multi-beating plate (87).

4. The multi-variety adjustable low-pressure casting machine according to claim 1, characterized in that: An annular groove is provided on the outer wall of the track column (99), and an abutment block for sliding installation inside the annular groove of the track column (99) is fixedly connected to the inside of the moving ring (98).

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