A process for metal die casting table tennis bat with magnesium-lithium alloy material

Abstract

The application relates to the table tennis manufacturing technical field, in particular to a process for metal-mold casting a table tennis bat by using a magnesium-lithium alloy material, a forming cavity is arranged in the inside of a mold, a pouring hole is communicated with one side of the forming cavity, a filling assembly is arranged in the inside of the forming cavity, a guide assembly is connected with one side of the filling assembly, a smooth moving assembly is connected with one side of the guide assembly, a water tank, a first water pump and a second water pump are fixedly connected with the outside of the mold, a heat exchanger is fixedly connected with the outside of the water tank, an input pipe is communicated with the input end of the heat exchanger, a third water pump is communicated with the other end of the input pipe, the other end of the third water pump is communicated with the water tank, and an output pipe is communicated with the output end of the heat exchanger; the magnesium-lithium alloy material is poured into the forming cavity in the inside of the mold, the table tennis bat is not limited by the material state, only needs to be directly poured after being melted, the production is very convenient, the integral setting is better in overall stability, the table tennis weight is more suitable for athletes and is not easy to be damaged.

Description

A process for casting ping-pong paddles using magnesium-lithium alloy materials. Technical Field

[0001] This invention relates to the field of table tennis manufacturing technology, specifically a process for casting table tennis rackets using magnesium-lithium alloy materials. Background Technology

[0002] Table tennis, known as China's "national sport," is a popular ball sport worldwide, encompassing offense, competition, and defense. Currently, the main material of popular table tennis rackets is wood. However, rackets used by professional athletes for training tend to be too light, and their production requires a single piece of wood. Using spliced ​​wood results in poor stability and complicated manufacturing processes. Therefore, this paper proposes a process for casting table tennis rackets using magnesium-lithium alloy materials. Summary of the Invention

[0003] The purpose of this invention is to provide a process for casting ping-pong paddles using magnesium-lithium alloy materials to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] As an optional solution of the process for casting a ping-pong paddle using a magnesium-lithium alloy material in a metal mold according to the present invention, the process includes: a mold, the mold having a forming cavity inside, a pouring hole connected to one side of the forming cavity, a filling component inside the forming cavity, a guide component connected to one side of the filling component, and a smoothing component connected to one side of the guide component.

[0006] A water tank, a first water pump, and a second water pump are fixedly connected to the outside of the mold. A heat exchanger is fixedly connected to the outside of the water tank. The input end of the heat exchanger is connected to an input pipe, and the other end of the input pipe is connected to a third water pump. The other end of the third water pump is connected to the water tank. The output end of the heat exchanger is connected to an output pipe, and the other end of the output pipe is connected to a filling assembly. The outside of the second water pump is fixedly connected to the water tank. The output and input ends of the first and second water pumps are both connected to connecting pipes. The other end of the connecting pipe at the output end of the second water pump is connected to the water tank, and the other end of the connecting pipe at the input end of the second water pump is connected to the filling assembly.

[0007] As an optional solution to the process of casting ping-pong paddles using magnesium-lithium alloy material in the present invention, wherein: a solenoid valve is installed on the outside of the connecting pipe at the input end of the first water pump, and the other end of the connecting pipe at the input end of the first water pump is connected to the filling component.

[0008] As an optional solution to the process of casting ping-pong paddles using magnesium-lithium alloy material in metal molds according to the present invention, the following features: a control switch is provided on one side of the smooth moving component, and the control switch is fixedly connected to the water tank. In use, the filling component is placed inside the molding cavity, and the third water pump is started to fill the filling component with coolant. While injecting the magnesium-lithium alloy liquid, the second and third water pumps are continuously started to achieve liquid recycling inside the filling component. At the same time, when the filling component is squeezed, its guide component is activated, which in turn squeezes the control switch. At this time, the first water pump and the solenoid valve are activated. The first water pump is used to extract a portion of the coolant squeezed from the filling component to prevent damage to the filling component. The guide component is set to ensure stable movement of the filling component, while the smooth moving component is used to drive the guide component to move stably. The heat exchanger is set for heat exchange to ensure that the liquid inside the filling component is in a low temperature state to ensure normal use of the filling component.

[0009] As an optional embodiment of the process for casting ping-pong paddles using magnesium-lithium alloy material in a metal mold according to the present invention, the filling assembly includes a high-temperature resistant soft filling layer, a support rod, and a side rod. The high-temperature resistant soft filling layer is disposed inside the molding cavity. A support rod is provided inside the high-temperature resistant soft filling layer. One end of the support rod is fixedly connected to a guide assembly, and the other end of the support rod is fixedly connected to a side rod. The other end of the side rod is fixedly connected to the high-temperature resistant soft filling layer. A sliding sleeve is slidably connected to the outside of the support rod, and the outside of the sliding sleeve is fixedly connected to the high-temperature resistant soft filling layer. Short water injection pipes and long water injection pipes are respectively provided on both sides of the support rod. The water pipe has a long water inlet pipe connected to an outlet pipe on its outer side, and a short water inlet pipe connected to a parallel connecting pipe on its outer side. In use, magnesium-lithium alloy liquid is injected into the molding hole through the pouring hole. At this time, the magnesium-lithium alloy liquid squeezes the high-temperature resistant soft filling layer. Simultaneously, the stable moving component drives the guiding component to move, which in turn causes the support rod to slide inside the sliding sleeve. The support rod also drives the side rod and the high-temperature resistant soft filling layer on the top to move. At this time, the liquid magnesium-lithium alloy material gradually squeezes the high-temperature resistant soft filling layer, thus achieving the slow filling of the molding hole with the liquid magnesium-lithium alloy material. This makes the liquid magnesium-lithium alloy material compact and less prone to air bubbles, ensuring the quality of the cast ping-pong paddle.

[0010] As an optional solution to the process of casting a ping-pong paddle using magnesium-lithium alloy material according to the present invention, wherein: a sealing layer is fixedly connected to the inner side of the sliding sleeve, and the sealing layer is disposed on the outer side of the support rod.

[0011] As an optional solution for the process of casting a ping-pong paddle using magnesium-lithium alloy material in metal mold according to the present invention, the sealing layer ensures that the cooling liquid of the high-temperature resistant soft filling layer is not easily leaked when the support rod slides, thus ensuring the cooling effect of the cooling liquid.

[0012] As an optional solution to the process of casting a ping-pong paddle using magnesium-lithium alloy material in a metal mold according to the present invention, the guiding assembly includes a horizontal rod, a guide post, and a spring. A connecting rod is slidably connected to the inner side of the horizontal rod. One end of the connecting rod is fixedly connected to the filling assembly, and the other end of the connecting rod is fixedly connected to the smooth movement assembly. Guide posts are provided on both sides of the connecting rod. One end of the guide post is fixedly connected to the horizontal rod, and a fixing frame is slidably connected to the outer side of the guide post. The outer side of the fixing frame is fixedly connected to the water tank.

[0013] As an optional solution to the process of casting ping-pong paddles using magnesium-lithium alloy material according to the present invention, wherein: a spring is provided on the outside of the guide post, one end of the spring is fixedly connected to the fixing frame, and the other end of the spring is fixedly connected to the transverse rod.

[0014] As an optional solution to the process of casting a ping-pong paddle using magnesium-lithium alloy material in metal molds as described in this invention, the connecting rod is fixedly connected to a baffle plate, which is located on the side facing the filling component. The baffle plate is used to drive the horizontal rod to move stably. At the same time, the outer side of the horizontal rod is connected to the short water injection pipe and the long water injection pipe to pull them to move, so as to avoid the short water injection pipe and the long water injection pipe folding and causing the water to be unable to drain. When the guide component moves, the connecting rod drives the baffle plate to move, and the baffle plate drives the horizontal rod to move. The horizontal rod drives the guide column to slide inside the fixed frame, and the guide column presses the control switch. At this time, the first water pump and the solenoid valve open. At this time, a part of the cooling liquid inside the high-temperature resistant soft filling layer is pumped into the water tank by the first water pump. The second water pump and the third water pump cooperate to realize the circulation of the cooling liquid. The first water pump is used to extract the cooling liquid squeezed inside the high-temperature resistant soft filling layer, so as to avoid the second water pump alone being unable to stably extract the water inside the high-temperature resistant soft filling layer, which would cause the high-temperature resistant soft filling layer to crack and be damaged.

[0015] As an optional solution for the process of casting a ping-pong paddle using magnesium-lithium alloy material according to the present invention, the smooth moving component includes a fixed frame and a motor. The outer side of the fixed frame is fixedly connected to a water tank, and the motor is fixedly connected inside the fixed frame. A threaded shaft is fixedly connected to the end of the motor spindle, and a threaded sleeve is screwed to the outer side of the threaded shaft. One side of the threaded sleeve is fixedly connected to a guide component, and a guide plate is fixedly connected to the outer side of the threaded sleeve. The outer side of the guide plate is slidably connected to the fixed frame. The rotation of the motor inside the smooth moving component drives the threaded shaft to rotate, and under the action of the guide plate, it drives the threaded sleeve to move, which is used to pull the guide component to move, and then drive the filling component to move. At this time, it can ensure that the high-temperature resistant soft filling layer inside the filling component is slowly squeezed, while the magnesium-lithium alloy liquid gradually fills the molding cavity to ensure the molding quality. Furthermore, the casting molding process is not limited by the material state, and the one-piece molding makes its integrity better. Moreover, the texture is slightly heavier than that of traditional wooden ping-pong paddles, ensuring a better feel and making it more suitable for athletes.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] This invention uses magnesium-lithium alloy material to be poured into the forming cavity inside the mold. The ping-pong paddle is not limited by the material state. It can be made by simply melting the magnesium-lithium alloy material and pouring it directly. The manufacturing process is very convenient, and the integrated design provides better overall stability.

[0018] Furthermore, during the casting process, the molding cavity of this device is equipped with a high-temperature resistant soft filling layer, which is filled with cooling water. There is no air inside the molding cavity. When casting, the liquid magnesium-lithium alloy material slowly squeezes the high-temperature resistant soft filling layer, and then the high-temperature resistant soft filling layer is slowly extracted. This ensures that the liquid magnesium-lithium alloy material fills the molding cavity little by little, ensuring that the ping-pong paddle body is compact and does not easily generate local air bubbles, thus ensuring the quality of the ping-pong paddle body.

[0019] Simultaneously, under the action of the smooth moving component, it can drive the support rod to pull the side rod, thereby moving one side of the high-temperature resistant soft filling layer. At this time, the high-temperature resistant soft filling layer slowly retracts. Under the action of the second water pump, long water injection pipe and short water injection pipe, the coolant inside the high-temperature resistant soft filling layer flows to prevent the liquid magnesium-lithium alloy material from scalding the surface of the high-temperature resistant soft filling layer. At the same time, the long water injection pipe and sliding sleeve are used to ensure the circulation of high-temperature liquid and low-temperature liquid.

[0020] Meanwhile, to ensure the stable sliding of the filling component, a guide component is provided to ensure that it moves along a predetermined trajectory. When the guide component moves, it will contact the control switch. At this time, the solenoid valve opens and the first water pump starts to receive the liquid discharged from the filling component, share the pressure with the second water pump, and ensure that the liquid inside the filling component is discharged normally. Attached Figure Description

[0021] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 is a schematic diagram of the filling component of the present invention;

[0023] Figure 3 is a cross-sectional view of the sliding sleeve of the present invention;

[0024] Figure 4 is a schematic diagram of the structure of the guide component of the present invention;

[0025] Figure 5 is a schematic diagram of the smooth movement component structure of the present invention.

[0026] In the diagram: 1. Mold; 2. Gating hole; 3. Molding cavity; 4. Filling assembly; 401. High-temperature resistant soft filling layer; 402. Support rod; 403. Side rod; 404. Long water injection pipe; 405. Short water injection pipe; 406. Sliding sleeve; 407. Sealing layer; 5. Guide assembly; 501. Horizontal rod; 502. Guide column; 503. Spring; 504. Fixing frame; 505. Connecting rod; 506. Baffle plate; 6. Smooth movement assembly; 601. Fixing frame; 602. Motor; 603. Threaded shaft; 604. Threaded sleeve; 605. Guide plate; 7. Water tank; 8. Control switch; 9. Heat exchanger; 10. Output pipe; 11. Input pipe; 12. First water pump; 13. Second water pump; 14. Connecting pipe; 15. Solenoid valve; 16. Third water pump. Detailed Implementation

[0027] Example 1:

[0028] Please refer to Figure 1. This invention provides a technical solution:

[0029] A process for casting ping-pong paddles using magnesium-lithium alloy materials includes a mold 1, a forming cavity 3 inside the mold 1, a pouring hole 2 connected to one side of the forming cavity 3, a filling component 4 inside the forming cavity 3, a guide component 5 connected to one side of the filling component 4, and a smoothing component 6 connected to one side of the guide component 5.

[0030] A water tank 7, a first water pump 12, and a second water pump 13 are fixedly connected to the outside of the mold 1. A heat exchanger 9 is fixedly connected to the outside of the water tank 7. The input end of the heat exchanger 9 is connected to an input pipe 11, and the other end of the input pipe 11 is connected to a third water pump 16. The other end of the third water pump 16 is connected to the water tank 7. The heat exchanger 9 is used to cool the high-temperature coolant. The output end of the heat exchanger 9 is connected to an output pipe 10, and the other end of the output pipe 10 is connected to the filling assembly 4. The outside of the second water pump 13 is fixedly connected to the water tank 7. The output and input ends of the first water pump 12 and the second water pump 13 are both connected to a connecting pipe 14. The other end of the connecting pipe 14 at the output end of the second water pump 13 is connected to the water tank 7, and the other end of the connecting pipe 14 at the input end of the second water pump 13 is connected to the filling assembly 4.

[0031] A solenoid valve 15 is installed on the outside of the connecting pipe 14 at the input end of the first water pump 12, and the other end of the connecting pipe 14 at the input end of the first water pump 12 is connected to the filling component 4. The first water pump 12 is used to pump out the amount of water that the second water pump 13 cannot pump out in time when the filling component 4 is squeezed.

[0032] A control switch 8 is provided on one side of the aforementioned smooth movement component 6, and the outer side of the control switch 8 is fixedly connected to the water tank 7.

[0033] Currently popular table tennis rackets are made primarily of wood. However, for professional athletes training, these rackets are relatively lightweight and require a single piece of wood for construction. Using spliced ​​wood results in poor stability and complicated manufacturing. In use, the filling component 4 is placed inside the molding cavity 3. The third water pump 16 is activated to fill the filling component 4 with coolant. While injecting the magnesium-lithium alloy liquid, the second and third water pumps 13 and 16 are continuously activated to achieve liquid recycling within the filling component 4. Simultaneously, when the filling component 4 is compressed, its guide component 5 is activated, which in turn compresses the control switch 8. At this time, the first water pump 12 and the solenoid valve 15... Upon startup, the first water pump 12 is used to extract a portion of the coolant squeezed out of the filling component 4 to prevent damage to the filling component 4. The guide component 5 is set to ensure the stable movement of the filling component 4, while the smooth movement component 6 is used to drive the guide component 5 to move stably. The heat exchanger 9 is set for heat exchange to ensure that the liquid inside the filling component 4 is in a low temperature state to ensure the normal use of the filling component 4. The ping-pong racket made by this process does not require cutting or splicing of the whole material, but can be directly poured. Moreover, the magnesium-lithium alloy liquid after pouring is more compact under the action of the filling component 4, making the ping-pong racket manufacturing process very simple.

[0034] Example 2

[0035] This embodiment is an improvement on Example 1. Please refer to Figures 1, 2, and 3. Specifically, the filling component 4 includes a high-temperature resistant soft filling layer 401, a support rod 402, and a side rod 403. The high-temperature resistant soft filling layer 401 is disposed inside the molding cavity 3. The support rod 402 is disposed inside the high-temperature resistant soft filling layer 401. One end of the support rod 402 is fixedly connected to the guide component 5, and the other end of the support rod 402 is fixedly connected to the side rod 403. The other end of the side rod 403 is fixedly connected to the high-temperature resistant soft filling layer 401. A sliding sleeve 406 is slidably connected to the outside of the support rod 402. The outside of the sliding sleeve 406 is fixedly connected to the high-temperature resistant soft filling layer 401. A short water injection pipe 405 and a long water injection pipe 404 are respectively disposed on both sides of the support rod 402. The outside of the long water injection pipe 404 is connected to the output pipe 10, and the outside of the short water injection pipe 405 is connected to a parallel connecting pipe 14.

[0036] During use, liquid magnesium-lithium alloy is injected into the molding hole 3 through the pouring hole 2. At this time, the liquid magnesium-lithium alloy squeezes the high-temperature resistant soft filler layer 401. Simultaneously, the smooth moving component 6 drives the guide component 5 to move, which in turn causes the support rod 402 to slide inside the sliding sleeve 406. The support rod 402 drives the side rod 403 and the top high-temperature resistant soft filler layer 401 to move. At this time, the liquid magnesium-lithium alloy material gradually squeezes the high-temperature resistant soft filler layer 401, thus achieving the slow filling of the molding hole 3 with the liquid magnesium-lithium alloy material. This makes the liquid magnesium-lithium alloy material compact and less prone to air bubbles, ensuring the quality of the cast ping-pong paddle. The short water injection pipe 405 and the long water injection pipe 404 are designed to ensure stable circulation of the coolant, achieving a good cooling effect.

[0037] Example 4

[0038] This embodiment is an improvement on the two implementation examples. Please refer to Figures 1, 2 and 3. Specifically, a sealing layer 407 is fixedly connected to the inner side of the sliding sleeve 406, and the sealing layer 407 is disposed on the outer side of the support rod 402.

[0039] The sealing layer 407 ensures that the cooling liquid in the high-temperature resistant soft filling layer 401 is not easily leaked when the support rod 402 slides, thus ensuring the cooling effect of the cooling liquid.

[0040] Example 5

[0041] This embodiment is an improvement on the previous four examples. Please refer to Figures 1 and 4. Specifically, the guide assembly 5 includes a horizontal rod 501, a guide post 502, and a spring 503. A connecting rod 505 is slidably connected to the inner side of the horizontal rod 501. One end of the connecting rod 505 is fixedly connected to the filling assembly 4, and the other end of the connecting rod 505 is fixedly connected to the smooth movement assembly 6. Guide posts 502 are provided on both sides of the connecting rod 505. One end of the guide post 502 is fixedly connected to the horizontal rod 501, and a fixing frame 504 is slidably connected to the outer side of the guide post 502. The outer side of the fixing frame 504 is fixedly connected to the water tank 7.

[0042] A spring 503 is provided on the outside of the guide post 502. One end of the spring 503 is fixedly connected to the fixing frame 504, and the other end of the spring 503 is fixedly connected to the transverse rod 501. The spring 503 is used to ensure that the transverse rod 501 moves stably to its original position when the guide assembly 5 is reset.

[0043] A baffle plate 506 is fixedly connected to the outer side of the connecting rod 505, and the baffle plate 506 is located on the side facing the filling component 4. The baffle plate 506 is used to drive the transverse rod 501 to move stably. At the same time, the outer side of the transverse rod 501 is connected to the short water injection pipe 405 and the long water injection pipe 404 to pull them to move, so as to avoid the short water injection pipe 405 and the long water injection pipe 404 from folding and causing the water to be unable to be discharged.

[0044] When the guide assembly 5 moves, the connecting rod 505 drives the baffle plate 506 to move, and the baffle plate 506 drives the transverse rod 501 to move. The transverse rod 501 drives the guide column 502 to slide inside the fixed frame 504, and the guide column 502 presses the control switch 8. At this time, the first water pump 12 and the solenoid valve 15 are opened. At this time, a part of the coolant inside the high-temperature resistant soft filling layer 401 is pumped into the water tank 7 by the first water pump 12. The second water pump 13 and the third water pump 16 cooperate to realize the circulation of coolant. The first water pump 12 is used to extract the coolant squeezed inside the high-temperature resistant soft filling layer 401, so as to avoid the second water pump 13 alone being unable to stably extract the water inside the high-temperature resistant soft filling layer 401, which would cause the high-temperature resistant soft filling layer 401 to crack and be damaged.

[0045] Example 6

[0046] This embodiment is an improvement on the previous five examples. Please refer to Figures 1 and 5. Specifically, the smooth moving component 6 includes a fixed frame 601 and a motor 602. The outer side of the fixed frame 601 is fixedly connected to the water tank 7. The motor 602 is fixedly connected inside the fixed frame 601. A threaded shaft 603 is fixedly connected to the end of the main shaft of the motor 602. A threaded sleeve 604 is screwed to the outer side of the threaded shaft 603. One side of the threaded sleeve 604 is fixedly connected to the guide component 5. A guide plate 605 is fixedly connected to the outer side of the threaded sleeve 604. The outer side of the guide plate 605 is slidably connected to the fixed frame 601.

[0047] The motor 602 inside the stable moving component 6 rotates, driving the threaded shaft 603 to rotate. Under the action of the guide plate 605, the threaded sleeve 604 moves, which is used to pull the guide component 5 to move, and then drive the filling component 4 to move. At this time, it can ensure that the high-temperature resistant soft filling layer 401 inside the filling component 4 is slowly squeezed, while the magnesium-lithium alloy liquid gradually fills the molding cavity 3, ensuring the molding quality. In addition, the casting molding process is set, which is not limited by the material state. The one-piece molding makes its integrity better, and the texture is slightly heavier than that of traditional wooden ping-pong paddles, ensuring that it has a better feel and is more suitable for athletes.

[0048] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be noted that due to the limitations of textual expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A process for casting ping-pong paddles using magnesium-lithium alloy materials, comprising a mold (1), characterized in that: The mold (1) has a molding cavity (3) inside, and a pouring hole (2) is connected to one side of the molding cavity (3). A filling component (4) is provided inside the molding cavity (3). A guide component (5) is connected to one side of the filling component (4). A smooth moving component (6) is connected to one side of the guide component (5). A water tank (7), a first water pump (12), and a second water pump (13) are fixedly connected to the outside of the mold (1). A heat exchanger (9) is fixedly connected to the outside of the water tank (7). An input pipe is connected to the input end of the heat exchanger (9). 11), the other end of the input pipe (11) is connected to the third water pump (16), and the other end of the third water pump (16) is connected to the water tank (7). The output end of the heat exchanger (9) is connected to the output pipe (10), and the other end of the output pipe (10) is connected to the filling assembly (4). The outside of the second water pump (13) is fixedly connected to the water tank (7). The output and input ends of the first water pump (12) and the second water pump (13) are both connected to the connecting pipe (14), and the other end of the connecting pipe (14) at the output end of the second water pump (13) is connected to the water tank (7). 7) Connecting, the other end of the connecting pipe (14) at the input end of the second water pump (13) is connected to the filling assembly (4); the filling assembly (4) includes a high-temperature resistant soft filling layer (401), a support rod (402) and a side rod (403). The high-temperature resistant soft filling layer (401) is disposed inside the molding cavity (3). The support rod (402) is provided inside the high-temperature resistant soft filling layer (401). One end of the support rod (402) is fixedly connected to the guide assembly (5), and the other end of the support rod (402) is fixedly connected to the side rod (5). 403), the other end of the side rod (403) is fixedly connected to the high temperature resistant soft filling layer (401), the outer side of the support rod (402) is slidably connected to the sliding sleeve (406), the outer side of the sliding sleeve (406) is fixedly connected to the high temperature resistant soft filling layer (401), the two sides of the support rod (402) are respectively provided with a short water injection pipe (405) and a long water injection pipe (404), the outer side of the long water injection pipe (404) is connected to the output pipe (10), and the outer side of the short water injection pipe (405) is connected to a connecting pipe (14) arranged side by side.

2. The process for casting ping-pong paddles using magnesium-lithium alloy materials according to claim 1, characterized in that: A solenoid valve (15) is installed on the outside of the connecting pipe (14) at the input end of the first water pump (12), and the other end of the connecting pipe (14) at the input end of the first water pump (12) is connected to the filling assembly (4).

3. The process for casting ping-pong paddles using magnesium-lithium alloy materials according to claim 1, characterized in that: The smooth moving component (6) is provided with a control switch (8) on one side, and the outside of the control switch (8) is fixedly connected to the water tank (7).

4. The process for casting ping-pong paddles using magnesium-lithium alloy material according to claim 1, characterized in that: A sealing layer (407) is fixedly connected to the inner side of the sliding sleeve (406), and the sealing layer (407) is located on the outer side of the support rod (402).

5. The process for casting ping-pong paddles using magnesium-lithium alloy material according to claim 1, characterized in that: The guide assembly (5) includes a horizontal rod (501), a guide post (502), and a spring (503). A connecting rod (505) is slidably connected to the inner side of the horizontal rod (501). One end of the connecting rod (505) is fixedly connected to the filling assembly (4), and the other end of the connecting rod (505) is fixedly connected to the smooth moving assembly (6). Guide posts (502) are provided on both sides of the connecting rod (505). One end of the guide post (502) is fixedly connected to the horizontal rod (501), and a fixing frame (504) is slidably connected to the outer side of the guide post (502). The outer side of the fixing frame (504) is fixedly connected to the water tank (7).

6. The process for casting ping-pong paddles using magnesium-lithium alloy material according to claim 5, characterized in that: A spring (503) is provided on the outside of the guide post (502). One end of the spring (503) is fixedly connected to the fixing frame (504), and the other end of the spring (503) is fixedly connected to the transverse rod (501).

7. The process for casting ping-pong paddles using magnesium-lithium alloy material according to claim 5, characterized in that: A baffle plate (506) is fixedly connected to the outside of the connecting rod (505), and the baffle plate (506) is located on the side facing the filling component (4).

8. The process for casting ping-pong paddles using magnesium-lithium alloy material according to claim 1, characterized in that: The smooth moving component (6) includes a fixed frame (601) and a motor (602). The fixed frame (601) is fixedly connected to the water tank (7) on the outside. The motor (602) is fixedly connected inside the fixed frame (601). A threaded shaft (603) is fixedly connected to the end of the main shaft of the motor (602). A threaded sleeve (604) is screwed to the outside of the threaded shaft (603). One side of the threaded sleeve (604) is fixedly connected to the guide component (5). A guide plate (605) is fixedly connected to the outside of the threaded sleeve (604). The outside of the guide plate (605) is slidably connected to the fixed frame (601).

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