Liquid material extraction device for a cast part

Abstract

This invention relates to a liquid raw material extraction device for castings, comprising a pressure chamber and a pushing mechanism for expelling liquid from the pressure chamber. During operation, the pushing mechanism expels the liquid from the pressure chamber through an outlet, and simultaneously stirs the liquid as it is expelled. The pushing mechanism includes a pressure rod and a stirring rod, with the stirring rod housed within and coaxial with the pressure rod. A driving mechanism meshes with the pressure rod and stirring rod, driving them to rotate. The rotating stirring rod stirs the liquid within the pressure chamber, and the pressure rod gradually moves closer to the outlet to expel the liquid. When the driving mechanism rotates the pressure rod and stirring rod, the stirring rod rotates at a higher speed than the pressure rod. This device achieves a simple structure, low cost, small size, ease of use, and high efficiency, and is widely applicable to the extraction of high-temperature liquid metals.

Description

Technical Field

[0001] This invention relates to the field of liquid raw material extraction technology for castings, and more specifically, to a device for extracting liquid raw materials from castings. Background Technology

[0002] Currently, the extraction of liquid raw materials for castings is mostly done manually. Moreover, most of these liquid raw materials are produced by melting metal raw materials at high temperatures. They must be poured into molds before solidification. However, manually extracting liquid raw materials at high temperatures using containers is extremely unsafe and inefficient, and can no longer meet people's needs. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a liquid raw material extraction device for castings that is simple in structure, low in cost, and small in size, in view of the above-mentioned defects of the prior art.

[0004] The technical solution adopted by this invention to solve its technical problem is:

[0005] A liquid raw material extraction device for casting is constructed, comprising a pressure chamber and a pushing mechanism for expelling liquid from the pressure chamber; wherein the pressure chamber is provided with a liquid outlet, the pushing mechanism expelling liquid from the pressure chamber from the liquid outlet, and the pushing mechanism agitating the liquid while expelling the liquid from the pressure chamber.

[0006] The liquid raw material extraction device for castings of the present invention includes a pressing mechanism comprising a pressing rod that rotates within the pressing chamber and gradually moves toward the liquid outlet during rotation, thereby pressing out the liquid within the pressing chamber. The pressing rod also stirs the liquid within the pressing chamber during rotation.

[0007] The liquid raw material extraction device for castings according to the present invention includes a pressing mechanism comprising a pressure rod and a stirring rod, wherein the stirring rod is sleeved on the pressure rod or disposed inside the pressure rod, and the pressure rod and the stirring rod are coaxial; the stirring rod stirs the liquid in the pressure chamber when it rotates.

[0008] The liquid raw material extraction device for castings according to the present invention includes a pressure chamber with a liquid inlet, a pressure rod rotating within the pressure chamber, and liquid being drawn from the liquid inlet and expelled from the liquid outlet when the pressure rod rotates.

[0009] The liquid raw material extraction device for castings of the present invention wherein the pressure rod gradually moves toward the liquid outlet through linear or rotational motion to press out the liquid in the pressure chamber.

[0010] The liquid raw material extraction device for castings of the present invention includes a pressure rod that gradually moves closer to the liquid outlet by rotational movement to expel liquid from the pressure chamber, or the pressure rod that expels liquid from the pressure chamber by rotational movement; the pressure rod and the stirring rod are meshed with a driving mechanism, and the driving mechanism drives the pressure rod and the stirring rod to rotate.

[0011] In the liquid raw material extraction device for castings of the present invention, when the driving mechanism drives the pressure rod and the stirring rod to rotate, the rotational speed of the stirring rod is greater than the rotational speed of the pressure rod.

[0012] The liquid raw material extraction device for castings of the present invention includes a pressure chamber located inside a container, and an outlet penetrating the side wall of the container; the container is also provided with an inlet, which is located away from the outlet and connected to the pressure chamber; a first end of a pressure rod penetrates the bottom surface or side wall of the container and is rotatably connected to and sealed to the bottom surface or side wall of the container, and a second end of the pressure rod is located inside the pressure chamber of the container.

[0013] The liquid raw material extraction device for castings of the present invention includes a pressure rod that is threadedly connected to the bottom or side wall of the container; a first stirring blade is provided at the second end of the pressure rod; when the pressure rod rotates, it gradually moves closer to the liquid outlet to expel the liquid in the pressure chamber or gradually moves away from the liquid outlet; when the pressure rod rotates, it drives the first stirring blade to rotate and stir the liquid in the pressure chamber.

[0014] The first end of the pressure rod meshes with the driving end of the driving mechanism, and the driving mechanism drives the pressure rod to rotate.

[0015] The liquid raw material extraction device for castings of the present invention includes a stirring rod disposed inside a pressure rod, the stirring rod passing through the pressure rod, the stirring rod rotating and sealing within the pressure rod; the first end of the stirring rod and the first end of the pressure rod are both meshed with the driving end of the driving mechanism; the second end of the stirring rod is provided with a second stirring blade, and when the stirring rod rotates, it drives the second stirring blade to rotate and stir the liquid in the pressure chamber.

[0016] The liquid raw material extraction device for castings of the present invention includes a spiral groove on the side wall of the second end of the pressure rod, the spiral groove being directly opposite the liquid inlet, and the spiral groove being connected to the end face of the second end of the pressure rod.

[0017] The liquid raw material extraction device for castings of the present invention further includes a liquid outlet channel vertically provided on the side wall of the container, wherein a first end of the liquid outlet channel is connected to the liquid outlet and a second end is away from the liquid outlet; the liquid raw material extraction device for castings also includes a liquid outlet nozzle, which is fixedly connected to the container, wherein a first end of the liquid outlet nozzle is connected to the second end of the liquid outlet channel, and the liquid outlet nozzle is inclined and the second end is lower than the first end.

[0018] The beneficial effects of this invention are as follows: During operation, the pushing mechanism forces the liquid in the pressure chamber out of the outlet, and the pushing mechanism stirs the liquid while pressing it out; wherein, the pushing mechanism includes a pressure rod and a stirring rod, the stirring rod is disposed inside the pressure rod and is coaxial with the pressure rod, and the pressure rod and the stirring rod are meshed with a driving mechanism, the driving mechanism drives the pressure rod and the stirring rod to rotate; when the stirring rod rotates, it stirs the liquid in the pressure chamber, and the pressure rod gradually moves closer to the outlet through the rotational movement to press out the liquid in the pressure chamber; when the driving mechanism drives the pressure rod and the stirring rod to rotate, the rotational speed of the stirring rod is greater than the rotational speed of the pressure rod; it achieves a simple structure, low cost, small size, convenient use, high working efficiency, and is widely applicable to the extraction of high-temperature liquid metals. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. The drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a cross-sectional view of the pushing mechanism of the liquid raw material extraction device for castings according to a preferred embodiment of the present invention, close to the liquid outlet.

[0021] Figure 2 This is a cross-sectional view of the pushing mechanism of the liquid raw material extraction device for castings according to a preferred embodiment of the present invention, close to the liquid inlet.

[0022] Figure 3 This is a cross-sectional view of the pushing mechanism of the liquid raw material extraction device for castings according to a preferred embodiment of the present invention, close to the liquid outlet.

[0023] Figure 4 This is a cross-sectional view of the second end of the pressure rod of the liquid raw material extraction device for castings according to a preferred embodiment of the present invention, close to the liquid inlet.

[0024] Figure 5 This is a cross-sectional view of the pushing mechanism of the liquid raw material extraction device for castings according to a preferred embodiment of the present invention, close to the liquid inlet.

[0025] Figure 6This is a schematic diagram of a liquid raw material extraction device for castings according to a preferred embodiment of the present invention.

[0026] Figure 7 This is a cross-sectional view of the liquid raw material extraction device for castings according to a preferred embodiment of the present invention. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, a clear and complete description will be provided below in conjunction with the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the protection scope of the present invention.

[0028] Example 1

[0029] The liquid raw material extraction device for castings according to a preferred embodiment of the present invention is as follows: Figure 1 As shown, see also Figure 2 It includes a pressure chamber 100 and a pushing mechanism 200 for pushing out the liquid (not shown in the figure) in the pressure chamber 100; the pressure chamber 100 is provided with a liquid outlet 101, and the pushing mechanism 200 pushes out the liquid in the pressure chamber 100 from the liquid outlet 101. The pushing mechanism 200 stirs the liquid when pushing out the liquid in the pressure chamber 100.

[0030] like Figure 1 and Figure 2 As shown, the pushing mechanism 200 includes a pressure rod 201, which rotates inside the pressure chamber 100 and gradually moves closer to the liquid outlet 101 during rotation, thus expelling the liquid from the pressure chamber 100. The pressure rod 201 also stirs the liquid inside the pressure chamber 100 during rotation. The structure is simple, the cost is low, and the size is small.

[0031] like Figure 1 and Figure 2 As shown, the pressure chamber 100 is located inside the container 300, and the liquid outlet 101 penetrates through the side wall of the container 300; the container 300 is also provided with a liquid inlet 102, which is away from the liquid outlet 101 and is connected to the pressure chamber 100; the first end of the pressure rod 201 penetrates through the bottom surface or side wall of the container 300 and is rotatably connected to the bottom surface or side wall of the container 300 and sealed, and the second end of the pressure rod 201 is located inside the pressure chamber 100 of the container 300; the structure is simple, the cost is low, the size is small, and it meets different usage requirements.

[0032] like Figure 1 and Figure 2As shown, the pressure rod 201 is threadedly connected to the bottom or side wall of the container 300, i.e., rotatably connected through the threaded engagement; the second end of the pressure rod 201 is provided with a first stirring blade 2011. When the pressure rod 201 rotates, it gradually moves closer to the liquid outlet 101 to expel the liquid in the pressure chamber 100 or gradually moves away from the liquid outlet 101. When the pressure rod 201 rotates, it drives the first stirring blade 2011 to rotate and stir the liquid in the pressure chamber 100; the first end of the pressure rod 201 is connected to the drive mechanism (not shown in the figure). The drive ends mesh, and the drive mechanism drives the pressure rod 201 to rotate. While rotating, the pressure rod 201 generates an upward or downward linear motion. The second end of the pressure rod 201 matches the pressure chamber 100 of the container 300. Furthermore, the side wall of the second end of the pressure rod 201 is tightly attached to the inner side wall of the pressure chamber 100 of the container 300 and is sealed. The first stirring blade 2011 can be a protrusion (not shown in the figure) provided on the end face of the second end of the pressure rod 201 to reduce costs.

[0033] Example 2

[0034] The liquid raw material extraction device for castings in the preferred embodiment of the present invention is as follows: Figure 3 As shown, see also Figure 4 and Figure 6 The system includes a pressure chamber 100 and a pushing mechanism 200 for expelling liquid (not shown) from the pressure chamber 100. The pressure chamber 100 has an outlet 101. The pushing mechanism 200 expels the liquid from the pressure chamber 100 through the outlet 101 and stirs the liquid while expelling it. During operation, the pushing mechanism 200 expels the liquid from the pressure chamber 100 through the outlet 101 and stirs the liquid while expelling it. The pushing mechanism 200 includes a pressure rod 201 and a stirring rod 202. The stirring rod 202 is equipped with a pressure rod. The rod 201 is coaxial with the pressure rod 201. The pressure rod 201 and the stirring rod 202 are meshed with a drive mechanism (not shown in the figure). The drive mechanism drives the pressure rod 201 and the stirring rod 202 to rotate. When the stirring rod 202 rotates, it stirs the liquid in the pressure chamber 100. The pressure rod 201 gradually moves closer to the liquid outlet 101 through the rotational motion and squeezes out the liquid in the pressure chamber 100. When the drive mechanism drives the pressure rod 201 and the stirring rod 202 to rotate, the rotational speed of the stirring rod 202 is greater than that of the pressure rod 201. This design achieves a simple structure, low cost, small size, convenient use, and high working efficiency, and is widely applicable to the extraction of high-temperature liquid metals.

[0035] like Figure 3 and Figure 5As shown, the pressing mechanism 200 includes a pressure rod 201 and a stirring rod 202. The stirring rod 202 is sleeved on the pressure rod 201 or is installed inside the pressure rod 201. The pressure rod 201 and the stirring rod 202 are coaxial. When the stirring rod 202 rotates, it stirs the liquid in the pressure chamber 100 to reduce the volume and save costs.

[0036] like Figure 3 and Figure 5 As shown, the pressure rod 201 gradually moves closer to the liquid outlet 101 through linear or rotary motion to press out the liquid in the pressure chamber 100, thus meeting different usage requirements.

[0037] like Figure 3 and Figure 5 As shown, the pressure rod 201 gradually moves closer to the outlet 101 through rotational movement, pushing out the liquid from the pressure chamber 100.

[0038] Liquid; the pressure rod 201 and the stirring rod 202 are meshed with a drive mechanism, which drives the pressure rod 201 and the stirring rod 202 to rotate; using the drive mechanism to drive the pressure rod 201 and the stirring rod 202 simultaneously reduces costs, shrinks the product size, and improves the utilization rate of the drive mechanism; wherein, the pressure rod 201 and the stirring rod 202 can be driven to rotate through gear transmission.

[0039] like Figure 3 and Figure 5 As shown, when the drive mechanism drives the pressure rod 201 and the stirring rod 202 to rotate, the rotational speed of the stirring rod 202 is greater than that of the pressure rod 201; the speed difference between the pressure rod 201 and the stirring rod 202 can be adjusted by selecting drive gears of different sizes.

[0040] like Figure 3 and Figure 5 As shown, the pressure chamber 100 is located inside the container 300, and the liquid outlet 101 penetrates through the side wall of the container 300; the container 300 is also provided with a liquid inlet 102, which is away from the liquid outlet 101 and is connected to the pressure chamber 100; the first end of the pressure rod 201 penetrates through the bottom surface or side wall of the container 300 and is rotatably connected to the bottom surface or side wall of the container 300 and sealed, and the second end of the pressure rod 201 is located inside the pressure chamber 100 of the container 300; the structure is simple, the cost is low, the size is small, and it meets different usage requirements.

[0041] like Figure 3 and Figure 5 As shown, the stirring rod 202 is housed within the pressure rod 201, and the stirring rod 202 passes through the pressure rod 201. The stirring rod 202 rotates within the pressure rod 201 and provides sealing. Figure 4 As shown, the stirring rod 202 and the pressure rod 201 are rotatably connected and sealed, as shown. Figure 3 and Figure 5As shown, the pressure rod 201 and the stirring rod 202 move synchronously in a linear motion to meet different usage requirements; the first end of the stirring rod 202 and the first end of the pressure rod 201 are both meshed with the driving end of the driving mechanism; the second end of the stirring rod 202 is provided with a second stirring blade 2021, and when the stirring rod 202 rotates, it drives the second stirring blade 2021 to rotate and stir the liquid in the pressure chamber 100; the structure is simple, the cost is low, the size is small, and it is easy to use.

[0042] like Figure 3 and Figure 5 As shown, a liquid outlet channel 301 is vertically provided on the side wall of the container 300. The first end of the liquid outlet channel 301 is connected to the liquid outlet 101, and the second end is away from the liquid outlet 101. The liquid raw material extraction device for the casting also includes a liquid outlet nozzle 302, which is fixedly connected to the container 300. The first end of the liquid outlet nozzle 302 is connected to the second end of the liquid outlet channel 301. The liquid outlet nozzle 302 is inclined, and the second end is lower than the first end, so that the liquid (liquid raw material) in the liquid outlet nozzle 302 flows out naturally, avoiding clogging of the liquid outlet nozzle 302 after the liquid raw material solidifies. The liquid outlet channel 301 is provided inside the side wall of the container 300 or a separate pipe is provided as the liquid outlet channel 301. Further, the container 300 is placed inside the boiler 400, wherein the container 300 is fixedly connected to the mounting bracket 401, and the mounting bracket 401 is fixedly connected to the boiler 400. Figure 6 As shown, the container 300 and the pressing mechanism 200 can be made of ceramic. After the metal raw material is melted into liquid at high temperature, it is fed into the pressure chamber 100 of the container 300 through the inlet 102. The boiler 400 heats the container 300 to prevent the liquid raw material from solidifying. When it is necessary to extract the liquid raw material from the pressure chamber 100 of the container 300, the pressure rod 201 is driven to remove the liquid raw material from the pressure chamber 100, achieving quantity extraction. Furthermore, stirring the liquid can improve the tensile strength and smoothness of the solidified liquid raw material. For example, stirring molten aluminum can change the components of molten aluminum from long strips to round shapes (observable under a microscope at 100x magnification). Products made from stirred molten aluminum have higher smoothness and better tensile strength. Simultaneously, because the stirring of molten aluminum occurs within the sealed pressure chamber 100...

[0043] The stirring process further improves the smoothness and tensile strength of the formed aluminum products, thus better meeting the requirements of applications with high-quality aluminum products.

[0044] Example 3

[0045] The liquid raw material extraction device for castings in the preferred embodiment of the present invention is as follows: Figure 7As shown; it includes a pressure chamber 100 and a pushing mechanism 200 for expelling liquid (not shown) from the pressure chamber 100; the pressure chamber 100 is provided with a liquid outlet 101, and the pushing mechanism 200 expelles the liquid from the pressure chamber 100 through the liquid outlet 101, while stirring the liquid during the expulsion process; during operation, the pushing mechanism 200 expelles the liquid from the pressure chamber 100 through the liquid outlet 101, while stirring the liquid during the expulsion process; wherein, the pushing mechanism 200 includes a pressure rod 201 and a stirring rod 202, the stirring rod 202 being provided with a... The pressure rod 201 is coaxial with the pressure rod 201, and the pressure rod 201 and the stirring rod 202 are meshed with a driving mechanism (not shown in the figure). The driving mechanism drives the pressure rod 201 and the stirring rod 202 to rotate. When the stirring rod 202 rotates, it stirs the liquid in the pressure chamber 100. The pressure rod 201 gradually moves closer to the liquid outlet 101 through the rotational motion and squeezes out the liquid in the pressure chamber 100. When the driving mechanism drives the pressure rod 201 and the stirring rod 202 to rotate, the rotational speed of the stirring rod 202 is greater than that of the pressure rod 201. This design achieves a simple structure, low cost, small size, convenient use, and high working efficiency, and is widely applicable to the extraction of high-temperature liquid metals.

[0046] like Figure 7 As shown, the pressing mechanism 200 includes a pressure rod 201 and a stirring rod 202. The stirring rod 202 is sleeved on the pressure rod 201 or is installed inside the pressure rod 201. The pressure rod 201 and the stirring rod 202 are coaxial. When the stirring rod 202 rotates, it stirs the liquid in the pressure chamber 100 to reduce the volume and save costs.

[0047] like Figure 7 As shown, the pressure chamber 100 is provided with a liquid inlet 102, and the pressure rod 201 rotates inside the pressure chamber 100. When the pressure rod 201 rotates, it draws liquid from the liquid inlet 102 and pushes it out from the liquid outlet 101. The second end of the pressure rod 201 is provided with a water pump impeller without a center end so that the stirring rod 202 can pass through (not shown in the figure) and realize the extraction of liquid from the liquid inlet 102.

[0048] like Figure 7 As shown, the pressure rod 201 presses out the liquid in the pressure chamber 100 through rotational motion. Using rotational motion to press out the liquid is simpler and results in a smaller volume compared to using linear motion. The pressure rod 201 and the stirring rod 202 are meshed with a drive mechanism, which drives both the pressure rod 201 and the stirring rod 202 to rotate. Using a drive mechanism to simultaneously drive both the pressure rod 201 and the stirring rod 202 reduces costs, decreases product size, and improves the utilization rate of the drive mechanism. The rotation of the pressure rod 201 and the stirring rod 202 can be driven by gear transmission.

[0049] like Figure 7As shown, when the drive mechanism drives the pressure rod 201 and the stirring rod 202 to rotate, the rotational speed of the stirring rod 202 is greater than that of the pressure rod 201; the speed difference between the pressure rod 201 and the stirring rod 202 can be adjusted by selecting drive gears of different sizes.

[0050] like Figure 7 As shown, the pressure chamber 100 is located inside the container 300, and the liquid outlet 101 penetrates through the side wall of the container 300; the container 300 is also provided with a liquid inlet 102, which is away from the liquid outlet 101 and is connected to the pressure chamber 100; the first end of the pressure rod 201 penetrates through the bottom surface or side wall of the container 300 and is rotatably connected to the bottom surface or side wall of the container 300 and sealed, and the second end of the pressure rod 201 is located inside the pressure chamber 100 of the container 300; the structure is simple, the cost is low, the size is small, and it meets different usage requirements.

[0051] like Figure 7 As shown, the stirring rod 202 is housed inside the pressure rod 201, and the stirring rod 202 passes through the pressure rod 201. The stirring rod 202 rotates and seals within the pressure rod 201. The first end of the stirring rod 202 and the first end of the pressure rod 201 are meshed with the drive end of the drive mechanism. The second end of the stirring rod 202 is provided with a second stirring blade 2021. When the stirring rod 202 rotates, it drives the second stirring blade 2021 to rotate and stir the liquid in the pressure chamber 100. The structure is simple, the cost is low, the size is small, and it is easy to use.

[0052] like Figure 7 As shown, the side wall of the second end of the pressure rod 201 is provided with a spiral groove 2010, which is directly opposite the liquid inlet.

[0053] 102, the spiral groove 2010 is connected to the end face of the second end of the pressure rod 201; the spiral groove 2010 is provided at the second end of the pressure rod 201 to generate suction force in conjunction with the rotational movement of the pressure rod 201, and to draw liquid from the external container connected to the liquid inlet 102; wherein, the spiral groove 2010 is easy to process and manufacture, has low cost, is easy to install, and the spiral groove 2010 can generate large pressure at a very low rotational speed of the pressure rod 201, so as to expel the liquid.

[0054] like Figure 7As shown, a liquid outlet channel 301 is vertically provided on the side wall of the container 300. The first end of the liquid outlet channel 301 is connected to the liquid outlet 101, and the second end is away from the liquid outlet 101. The liquid raw material extraction device for the casting also includes a liquid outlet nozzle 302, which is fixedly connected to the container 300. The first end of the liquid outlet nozzle 302 is connected to the second end of the liquid outlet channel 301. The liquid outlet nozzle 302 is inclined, and the second end is lower than the first end, so that the liquid in the liquid outlet nozzle 302 ( The liquid raw material flows out naturally to avoid clogging the outlet 302 after solidification. The inlet 102 is lower than the outlet 302 to stop dispensing when the pressure rod 201 is not rotating. The outlet channel 301 is located inside the side wall of the container 300 or is provided as a separate pipe. Furthermore, the container 300 is placed inside the boiler 400, and the container 300 is fixedly connected to the mounting bracket 401, which is also fixedly connected to the boiler 400. Figure 6 As shown, the container 300 and the pressing mechanism 200 can be made of ceramic. After the metal raw material is melted into liquid material at high temperature, it is fed into the pressure chamber 100 of the container 300 through the liquid inlet 102. The boiler 400 heats the container 300 to ensure that the liquid material does not solidify. When it is necessary to extract the liquid material in the pressure chamber 100 of the container 300, the pressing rod 201 is driven to remove the liquid material in the pressure chamber 100, realizing the extraction according to the amount. Furthermore, stirring the liquid can improve the tensile strength and smoothness of the liquid material after solidification. For example, stirring the molten aluminum can stir the components of the molten aluminum from a long strip to a round shape (viewed under a microscope at 100x magnification). The products made from the stirred molten aluminum have higher smoothness and better tensile strength. At the same time, since the molten aluminum is stirred in the sealed pressure chamber 100, the smoothness and tensile strength of the formed aluminum product are further improved, which further meets the needs of scenarios with high requirements for the quality of aluminum products.

[0055] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A liquid raw material extraction device for castings, comprising a pressure chamber and a pushing mechanism for expelling liquid from the pressure chamber; characterized in that, The pressure chamber is provided with a liquid outlet, and the pushing mechanism pushes the liquid in the pressure chamber out of the liquid outlet. The pushing mechanism stirs the liquid when it pushes the liquid out of the pressure chamber. The pushing mechanism includes a pressure rod, which rotates in the pressure chamber and gradually moves closer to the liquid outlet during the rotation, pushing out the liquid in the pressure chamber. The pressure rod also stirs the liquid in the pressure chamber during the rotation. The pushing mechanism includes the pressure rod and the stirring rod. The stirring rod is sleeved on the pressure rod or internally disposed within the pressure rod, and the pressure rod and the stirring rod are coaxial. When the stirring rod rotates, it stirs the liquid in the pressure chamber. The pressure chamber is provided with a liquid inlet, and the pressure rod rotates within the pressure chamber. When the pressure rod rotates, it draws liquid from the liquid inlet and pushes it out from the liquid outlet. The pressure chamber is located inside the container, and the liquid outlet penetrates through the side wall of the container; the container is also provided with the liquid inlet, which is away from the liquid outlet and communicates with the pressure chamber; the first end of the pressure rod penetrates through the bottom surface or side wall of the container and is rotatably connected to the bottom surface or side wall of the container and sealed, and the second end of the pressure rod is located inside the pressure chamber of the container; The container is also provided with a vertical liquid outlet channel on its side wall. The first end of the liquid outlet channel is connected to the liquid outlet and the second end is away from the liquid outlet. The liquid raw material extraction device for the casting also includes a liquid outlet nozzle. The liquid outlet nozzle is fixedly connected to the container. The first end of the liquid outlet nozzle is connected to the second end of the liquid outlet channel. The liquid outlet nozzle is inclined and the second end is lower than the first end. The pressure rod gradually moves closer to the liquid outlet through rotational movement to expel the liquid in the pressure chamber. The pressure rod and the stirring rod are meshed with a driving mechanism, which drives the pressure rod and the stirring rod to rotate. When the driving mechanism drives the pressure rod and the stirring rod to rotate, the rotational speed of the stirring rod is greater than that of the pressure rod.

2. The liquid raw material extraction device for castings according to claim 1, characterized in that, The pressure rod is threadedly connected to the bottom or side wall of the container; the second end of the pressure rod is provided with a first stirring blade. When the pressure rod rotates, it gradually moves closer to the liquid outlet to expel the liquid in the pressure chamber or gradually moves away from the liquid outlet. When the pressure rod rotates, it drives the first stirring blade to rotate and stir the liquid in the pressure chamber; the first end of the pressure rod meshes with the driving end of the driving mechanism, and the driving mechanism drives the pressure rod to rotate.

3. The liquid raw material extraction device for castings according to claim 1, characterized in that, The stirring rod is disposed inside the pressure rod and passes through the pressure rod. The stirring rod rotates and is sealed inside the pressure rod. The first end of the stirring rod and the first end of the pressure rod are both meshed with the driving end of the driving mechanism. The second end of the stirring rod is provided with a second stirring blade. When the stirring rod rotates, it drives the second stirring blade to rotate and stir the liquid in the pressure chamber.

4. The liquid raw material extraction device for castings according to claim 3, characterized in that, The side wall of the second end of the pressure rod is provided with a spiral groove, which is directly opposite the liquid inlet and is connected to the end face of the second end of the pressure rod.

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