High-precision die-casting device for casting non-ferrous metal

Abstract

The invention discloses a high-precision die casting device for non-ferrous metal casting, and relates to the technical field of non-ferrous metal casting, the high-precision die casting device comprises a rack and a spraying assembly, a driving seat is slidably connected to the middle of the rack, the spraying assembly is arranged on one side of the driving seat, the spraying assembly comprises a guide frame, and the guide frame is arranged on one side of the driving seat; and an electric push rod is fixed in the guide frame, a driving plate is arranged at the end of the electric push rod, and a piston plate is fixed to one side of the driving plate. The electric push rod is in linkage with the first spring seat to drive the ejection mechanism in a graded mode, the ejection rod automatically ejects a workpiece during discharging, a hydraulic system is triggered through secondary pushing to supply a release agent to the two nozzles, synchronous spraying and supplementary coating of the double mold cavities are achieved, and when the ejection rod resets subsequently, the extension spring can retract the second nozzle to avoid collision, so that the production efficiency is improved. According to the design, the processes of demolding, spraying and liquid supplementing are integrated into a single power source, and the continuous casting efficiency is remarkably improved.

Description

Technical Field

[0001] The present invention relates to the technical field of non-ferrous metal casting, and specifically to a die-casting device for high-precision non-ferrous metal casting. Background Art

[0002] Non-ferrous metals, also known as non-ferrous metals in the narrow sense, refer to all metals except iron and iron-based alloys, and can be divided into heavy metals, light metals, precious metals and rare metals. During the casting process of non-ferrous metals, a die-casting device is required to press and form them.

[0003] Currently, during the die-casting process of non-ferrous metals, in order to prevent the product from adhering firmly to the mold locally during the demolding process and causing tearing, which affects the product accuracy, it is usually necessary to spray a demolding agent on the inner wall of the mold to ensure the smooth demolding of the new casting and protect the surface of the mold. However, since manual reapplication to the inner wall of the mold is required after each unloading, it is time-consuming and laborious during operation. Summary of the Invention

[0004] The purpose of the present invention is to provide a die-casting device for high-precision non-ferrous metal casting to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A die-casting device for high-precision non-ferrous metal casting, including a frame and a spraying assembly. A driving seat is slidably connected to the middle of the frame. The spraying assembly is arranged on one side of the driving seat, and the spraying assembly includes a guiding frame. A guiding frame is arranged on one side of the driving seat, and an electric push rod is fixed inside the guiding frame. A driving plate is arranged at the end of the electric push rod, and a piston plate is fixed on one side of the driving plate. The piston plate is slidably connected to the outside of a fixed box. A first one-way valve is arranged at the top of the fixed box, and the top of the first one-way valve is connected to a liquid storage tank through a pipeline. A second one-way valve is arranged in the middle of one side of the fixed box, and the end of the second one-way valve is connected to a flow dividing plate. First spring seats are arranged at the upper and lower ends of one side of the flow dividing plate, and a push rod is rotatably connected to the other side of the flow dividing plate. A partition is arranged inside one end of the push rod, and tension springs are fixed on both sides of the partition, and the ends of the tension springs are fixed to a first spray head. A second spray head is arranged at the end of the push rod.

[0006] Further, the flow dividing plate is slidably connected to the guiding frame, and the push rods are arranged in an array on one side of the flow dividing plate.

[0007] Further, the first spray head is slidably connected to the push rod, and the push rod is slidably connected to the moving mold.

[0008] Further, a fixed mold is installed inside one end of the frame, and a dual-shaft motor is fixed outside the other end of the frame. The output shaft of the dual-shaft motor is connected to a gear commutator, and a screw rod is installed on the output shaft of the gear commutator. The screw rod is threadedly connected to the driving seat, and a moving mold is fixed on the other side of the driving seat.

[0009] Further, a protective component is arranged outside the other end of the ejector rod. The protective component includes a fixed ring. The fixed ring is fixed on the outer peripheral surface of the ejector rod. A second spring seat is arranged on one side of the fixed ring. A sliding sleeve is fixed at the end of the second spring seat. A support plate is rotatably connected to one side of the sliding sleeve.

[0010] Further, a limiting plate is fixed on the other side of the sliding sleeve. A guiding groove is formed inside the limiting plate. A sliding column is slidably connected inside the guiding groove. A rotating shaft is fixed at the end of the sliding column. And an end cover is arranged at one end of the rotating shaft.

[0011] Further, the rotating shaft is rotatably connected to the ejector rod, and the ejector rod is slidably connected to the sliding sleeve.

[0012] Further, a uniform distribution component is connected to the bottom of the driving plate. The uniform distribution component includes a connecting rod. The connecting rod is rotatably connected to the bottom of the driving plate. The lower end of the connecting rod is rotatably connected to a sliding plate. And a limiting strip is slidably connected to one side of the sliding plate.

[0013] Further, the cross section of the limiting strip is an isosceles trapezoid, and the limiting strip is fixedly connected to the flow dividing plate.

[0014] Further, tooth plates are symmetrically arranged on both sides of the sliding plate. A tooth ring is meshed with one side of the tooth plate. And the tooth ring is fixedly connected to the ejector rod.

[0015] The present invention provides a die-casting device for precision non-ferrous metal casting, having the following beneficial effects:

[0016] 1. In the present invention, the electric push rod is linked with the first spring seat to drive the ejection mechanism in stages. When unloading, the ejector rod automatically ejects the workpiece. The secondary push triggers the hydraulic system to supply the release agent to the two nozzles, realizing synchronous spray coating in the double mold cavities. And when the ejector rod resets later, the tension spring can retract the second nozzle to avoid bumping, and automatically replenish the release agent in the fixed box. This design integrates the processes of demoulding, spraying, and liquid replenishment into a single power source, significantly improving the continuous casting efficiency. At the same time, it avoids the process interruption caused by manual coating, and ensures the forming quality and dimensional accuracy of non-ferrous metal parts.

[0017] 2. The opening and closing state of the end cover of the present invention is jointly controlled by the ejector rod. During the die-casting process, the end cover can shield the second nozzle to prevent molten metal from invading. After demolding, the displacement of the ejector rod triggers the rotation of the end cover to avoid the spraying path. When the ejector rod retracts, the return spring drives the end cover to automatically return to its protective position. This structure realizes the adaptive switching of the working state of the nozzle, eliminates the risk of manual operation, extends the service life of the precision nozzle, and is especially suitable for the automation protection requirements in high-temperature die-casting environments.

[0018] 3. The connecting rod of the present invention drives the ejector rod to rotate through the toothed plate and the rack, thereby expanding the coverage range of the release agent during the subsequent spraying process. And the rotational centrifugal force cooperates with the hydraulic push to ensure the smooth deployment of the first nozzle. This design realizes the uniform coating of the inner wall of the moving die, improves the film-forming consistency of the release agent, and at the same time avoids the risk of sticking die caused by local missed coating. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall three-dimensional right view structure of a die-casting device for high-precision non-ferrous metal casting according to the present invention;

[0020] Figure 2 It is a schematic diagram of the overall three-dimensional left view structure of a die-casting device for high-precision non-ferrous metal casting according to the present invention;

[0021] Figure 3 It is a schematic diagram of the internal structure of the guide frame of a die-casting device for high-precision non-ferrous metal casting according to the present invention;

[0022] Figure 4 It is a schematic diagram of the internal structure of the fixed box of a die-casting device for high-precision non-ferrous metal casting according to the present invention;

[0023] Figure 5 It is a schematic diagram of the partial structure of the ejector rod of a die-casting device for high-precision non-ferrous metal casting according to the present invention;

[0024] Figure 6 It is a schematic diagram of the three-dimensional structure of the protection component of a die-casting device for high-precision non-ferrous metal casting according to the present invention;

[0025] Figure 7 It is a schematic diagram of the three-dimensional structure of the sliding column of a die-casting device for high-precision non-ferrous metal casting according to the present invention;

[0026] Figure 8 It is a schematic diagram of the three-dimensional structure of the uniform distribution component of a die-casting device for high-precision non-ferrous metal casting according to the present invention.

[0027] In the figure: 1, frame; 2, fixed mold; 3, double-shaft motor; 4, gear commutator; 5, screw; 6, drive seat; 7, moving mold; 8, spraying assembly; 801, guide frame; 802, electric push rod; 803, drive plate; 804, piston plate; 805, fixed box; 806, first one-way valve; 807, liquid storage tank; 808, second one-way valve; 809, flow dividing plate; 810, first spring seat; 811, ejector rod; 812, partition board; 813, tension spring; 814, first spray head; 815, second spray head; 9, protection assembly; 901, fixed ring; 902, second spring seat; 903, sliding sleeve; 904, support plate; 905, limiting plate; 906, guide groove; 907, sliding column; 908, rotating shaft; 909, end cover; 10, uniform distribution assembly; 1001, connecting rod; 1002, sliding plate; 1003, limiting strip; 1004, toothed plate; 1005, toothed ring. Detailed implementation mode

[0028] Please refer to Figures 1 to 5 , the present invention provides a technical solution: a die-casting device for casting non-ferrous metals with high precision, including a frame 1 and a spraying assembly 8. A fixed mold 2 is arranged inside one end of the frame 1, and a double-shaft motor 3 is fixed outside the other end of the frame 1. The output shaft of the double-shaft motor 3 is connected to a gear commutator 4, and a screw 5 is arranged on the output shaft of the gear commutator 4. A drive seat 6 is slidably connected to the middle of the frame 1. The screw 5 is threadedly connected to the drive seat 6, and a moving mold 7 is fixed on the other side of the drive seat 6. The spraying assembly 8 is arranged on one side of the drive seat 6, and the spraying assembly 8 includes a guide frame 801. A guide frame 801 is arranged on one side of the drive seat 6, and an electric push rod 802 is fixed inside the guide frame 801. The end of the electric push rod 802 is provided with a drive plate 803, and a piston plate 804 is fixed on one side of the drive plate 803. The piston plate 804 is slidably connected to the outside of a fixed box 805, and a first one-way valve 806 is arranged on the top of the fixed box 805. The top of the first one-way valve 806 is connected to a liquid storage tank 807 through a pipeline. A second one-way valve 808 is arranged in the middle of one side of the fixed box 805, and the end of the second one-way valve 808 is connected to a flow dividing plate 809. The upper and lower ends of one side of the flow dividing plate 809 are provided with first spring seats 810, and the other side of the flow dividing plate 809 is rotatably connected to an ejector rod 811. A partition board 812 is arranged inside one end of the ejector rod 811, and tension springs 813 are fixed on both sides of the partition board 812. The ends of the tension springs 813 are fixed to a first spray head 814, and a second spray head 815 is arranged at the end of the ejector rod 811. The flow dividing plate 809 is slidably connected to the guide frame 801, and the ejector rods 811 are arranged in an array on one side of the flow dividing plate 809. The first spray head 814 is slidably connected to the ejector rod 811, and the ejector rod 811 is slidably connected to the moving mold 7;

[0029] The specific operation is as follows. After the non-ferrous metal is die-cast and formed, the double-shaft motor 3 drives the screw 5 to rotate through the gear commutator 4, so that the driving seat 6 drives the moving mold 7 to separate from the fixed mold 2. Then, during demoulding, the electric push rod 802 pushes the driving plate 803 under the limit of the guide frame 801. At this time, due to the large elastic force of the first spring seat 810, it will preferentially drive the flow dividing plate 809 to move towards the driving seat 6, so that the ejector rod 811 pushes out the workpiece inside the cavity of the moving mold 7, facilitating unloading. And after unloading, as the electric push rod 802 continues to advance, the end of the ejector rod 811 can be located between the fixed mold 2 and the moving mold 7. At this time, the groove inside the guide frame 801 will limit the further movement of the convex block on the side of the flow dividing plate 809, and the first spring seat 810 will contract due to the pressure. The piston plate 804 will squeeze the release agent in the fixed box 805 into the flow dividing plate 809 through the second one-way valve 808 and enter the ejector rod 811, making the internal pressure continue to increase. Thus, it can use hydraulic pressure to squeeze the first spray head 814, so that the first spray head 814 extends out from the inside of the ejector rod 811. And the outlet of the first spray head 814 is inclined, so it can spray and coat the inner wall of the moving mold 7. At the same time, the second spray head 815 can also be used to spray and coat the surface of the fixed mold 2. Therefore, there is no need to add additional equipment to automatically spray and coat the release agent inside the mold after demoulding, ensuring the quality and precision during the continuous casting of non-ferrous metal parts. And when the electric push rod 802 drives the driving plate 803 to move back after spraying and coating, the tension spring 813 can pull the first spray head 814 under the limit of the partition plate 812, making it automatically retract into the ejector rod 811 to avoid collision and damage with the moving mold 7. At the same time, as the space between the fixed box 805 and the piston plate 804 gradually increases, the release agent in the liquid storage tank 807 can be automatically added to the fixed box 805 through the first one-way valve 806, without frequent manual replenishment, making the operation time-saving and labor-saving.

[0030] Please refer to Figures 5 to 7 On the outer side of the other end of the ejector rod 811, a protection component 9 is provided. The protection component 9 includes a fixed ring 901. The fixed ring 901 is fixed on the outer peripheral surface of the ejector rod 811. And a second spring seat 902 is arranged on one side of the fixed ring 901. The end of the second spring seat 902 is fixed with a sliding sleeve 903. And a support plate 904 is rotatably connected to one side of the sliding sleeve 903. A limiting plate 905 is fixed on the other side of the sliding sleeve 903. And a guide groove 906 is opened inside the limiting plate 905. A sliding column 907 is slidably connected inside the guide groove 906. And the end of the sliding column 907 is fixed with a rotating shaft 908. And an end cover 909 is arranged at one end of the rotating shaft 908. The rotating shaft 908 is rotatably connected to the ejector rod 811. And the ejector rod 811 is slidably connected to the sliding sleeve 903;

[0031] The specific operation is as follows. During die-casting molding, the second spring seat 902 will push the sliding sleeve 903, causing the sliding column 907 to be located below the limiting plate 905. At this time, the end cover 909 will shield and protect the end of the ejector rod 811, preventing the molten metal from entering the second spray head 815 during die-casting molding and damaging it. After demolding, when the end of the ejector rod 811 quickly moves between the fixed mold 2 and the moving mold 7, the support plate 904 will fit with the driving seat 6, thereby restricting the continuous movement of the support plate 904. During this process, since the elastic force of the second spring seat 902 is less than that of the first spring seat 810, the second spring seat 902 will be compressed first, causing the sliding column 907 to slide along the guiding groove 906 in the limiting plate 905 and rotate half a circle. Therefore, before spraying, the end cover 909 can automatically be moved away from the outside of the second spray head 815 through the rotating shaft 908, avoiding blocking the spraying operation of the second spray head 815. After spraying, when the distance between the fixed ring 901 and the driving seat 6 increases, with the reset of the limiting plate 905, similarly, the end cover 909 can automatically move back to protect the second spray head 815, without the need for additional manual operation, which is more convenient.

[0032] Please refer to Figure 4 and Figure 8 , a uniform distribution assembly 10 is connected to the bottom of the driving plate 803, and the uniform distribution assembly 10 includes a connecting rod 1001. The bottom of the driving plate 803 is rotatably connected to the connecting rod 1001, and the lower end of the connecting rod 1001 is rotatably connected to a sliding plate 1002. One side of the sliding plate 1002 is slidably connected to a limiting strip 1003. The cross-section of the limiting strip 1003 is an isosceles trapezoid, and the limiting strip 1003 is fixedly connected to the flow dividing plate 809. Tooth plates 1004 are symmetrically arranged on both sides of the sliding plate 1002, and a toothed ring 1005 is meshed with one side of the tooth plates 1004, and the toothed ring 1005 is fixedly connected to the ejector rod 811;

[0033] The specific operation is as follows. When the driving plate 803 drives the piston plate 804 to extrude the mold release agent inside the fixed box 805, it will also push the sliding plate 1002 through the connecting rod 1001. At the same time, the limiting strip 1003 restricts the moving direction of the sliding plate 1002, making it can only move vertically. Therefore, when the connecting rod 1001 drives the sliding plate 1002 to move downward, all the ejector rods 811 can be rotated through the tooth plates 1004 and the toothed ring 1005. Thus, the spraying range of the first spray head 814 can be expanded to fully cover the inner wall of the moving mold 7, which is beneficial to improving the uniformity during spraying. And when the ejector rod 811 rotates, the centrifugal force can also be utilized to assist the smooth movement of the first spray head 814 out of the ejector rod 811, ensuring the normal operation of the first spray head 814.

[0034] In summary, for the die-casting device for non-ferrous metal casting with high precision, during use, first, the electric push rod 802 contracts, causing the driving plate 803 to pull the flow dividing plate 809 through the first spring seat 810, which can drive the end of the ejector rod 811 to retract into the moving die 7. At this time, the distance between the fixed ring 901 and the driving seat 6 increases, and the second spring seat 902 will push the sliding sleeve 903, so that the sliding column 907 is located below the limiting plate 905, and the end cover 909 will shield and protect the end of the ejector rod 811, preventing the molten metal from entering the second nozzle 815 and damaging it during the die-casting process;

[0035] Secondly, the double-shaft motor 3 will drive the screw rod 5 to rotate through the gear commutator 4, thereby controlling the closing of the moving die 7 and the fixed die 2 through the driving seat 6. Subsequently, the die-casting forming operation can be carried out. After the non-ferrous metal is die-cast and formed, the driving seat 6 is used to drive the separation of the moving die 7 and the fixed die 2. Then, the electric push rod 802 pushes the driving plate 803 under the limitation of the guiding frame 801. At this time, due to the large elastic force of the first spring seat 810, it will first drive the flow dividing plate 809 to move towards the driving seat 6, so that the ejector rod 811 pushes out the workpiece inside the cavity of the moving die 7, facilitating unloading. And after unloading, as the electric push rod 802 continues to advance, when the end of the ejector rod 811 is about to move between the fixed die 2 and the moving die 7, the support plate 904 will fit with the driving seat 6, thereby restricting the continuous movement of the support plate 904. During this process, since the elastic force of the second spring seat 902 is less than that of the first spring seat 810, the second spring seat 902 will be compressed first, causing the sliding column 907 to slide along the guiding groove 906 in the limiting plate 905 and rotate half a circle. Therefore, before spraying, the end cover 909 can be automatically moved away from the outside of the second nozzle 815 through the rotating shaft 908, avoiding blocking the spraying operation of the second nozzle 815;

[0036] Then, when the end of the ejector rod 811 is located between the stationary mold 2 and the moving mold 7, the groove inside the guide frame 801 restricts the further movement of the bump on the side of the manifold plate 809. The first spring seat 810 will contract due to the pressure, and the piston plate 804 will squeeze the mold release agent in the fixed box 805 through the second one-way valve 808 into the manifold plate 809 and then into the ejector rod 811, continuously increasing the internal pressure thereof. Thus, the first spray head 814 can be hydraulically squeezed to extend from the inside of the ejector rod 811. Since the outlet of the first spray head 814 is inclined, the inner wall of the moving mold 7 can be spray-coated for supplementary coating. At the same time, the second spray head 815 can also be used to spray-coat the surface of the stationary mold 2. Therefore, there is no need to add any additional equipment to automatically coat the inside of the mold with the mold release agent after demolding, ensuring the quality and precision during the continuous casting of non-ferrous metal parts. Meanwhile, the drive plate 803 will also push the sliding plate 1002 through the connecting rod 1001. At the same time, the limiting strip 1003 restricts the moving direction of the sliding plate 1002 to make it move vertically only. Therefore, when the connecting rod 1001 drives the sliding plate 1002 to move downward, all the ejector rods 811 can be rotated through the toothed plate 1004 and the toothed ring 1005. Thus, the spraying range of the first spray head 814 can be expanded to fully cover the inner wall of the moving mold 7, which is beneficial to improving the uniformity during spraying. And when the ejector rod 811 rotates, the centrifugal force can be used to assist the first spray head 814 to smoothly move out of the ejector rod 811 to ensure the normal operation of the first spray head 814;

[0037] Finally, when the electric push rod 802 drives the drive plate 803 to move back after the supplementary coating, the tension spring 813 can pull the first spray head 814 under the limitation of the partition plate 812 to automatically retract it into the ejector rod 811 to avoid collision and damage with the moving mold 7. And the end cover 909 will rotate back to shield and protect the end of the ejector rod 811. At the same time, as the space between the fixed box 805 and the piston plate 804 gradually increases, the mold release agent in the liquid storage tank 807 can be automatically added to the fixed box 805 through the first one-way valve 806 without frequent manual replenishment, which is efficient and convenient.

[0038] It should be noted that in this article, the term "including", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements but also includes other elements not explicitly listed, or further includes elements inherent to such a process, method, article or device.

[0039] In this article, specific examples are used to elaborate on the principles and implementation modes of the present invention. The description of the above examples is only for helping to understand the method and its core idea of the present invention. The above is only the preferred implementation mode of the present invention. It should be noted that due to the limited nature of literal expression and objectively existing infinite specific structures, for those of ordinary skill in the art, without departing from the principles of the present invention, several improvements, embellishments or changes can be made, or the above technical features can be combined in an appropriate manner; these improvements, embellishments, changes or combinations, or directly applying the concept and technical solution of the invention to other occasions without improvement, shall all be regarded as the protection scope of the present invention.

Claims

1. A die-casting device for the casting of non-ferrous metals with high precision, characterized in that, It includes a frame (1) and a spraying assembly (8). A driving seat (6) is slidably connected to the middle of the frame (1). The spraying assembly (8) is arranged on one side of the driving seat (6), and the spraying assembly (8) includes a guiding frame (801). The guiding frame (801) is arranged on one side of the driving seat (6), and an electric push rod (802) is fixed inside the guiding frame (801). The end of the electric push rod (802) is provided with a driving plate (803), and a piston plate (804) is fixed on one side of the driving plate (803). The outer side of the piston plate (804) is slidably connected to a fixed box (805), and a first one-way valve (806) is arranged on the top of the fixed box (805). The top of the first one-way valve (806) is connected to a liquid storage tank (807) through a pipeline. A second one-way valve (808) is arranged in the middle of one side of the fixed box (805), and the end of the second one-way valve (808) is connected to a flow dividing plate (809). First spring seats (810) are arranged at the upper and lower ends on one side of the flow dividing plate (809), and a push rod (811) is rotatably connected to the other side of the flow dividing plate (809). A partition plate (812) is arranged inside one end of the push rod (811), and tension springs (813) are fixed on both sides of the partition plate (812). The ends of the tension springs (813) are fixed to a first spray head (814), and a second spray head (815) is arranged at the end of the push rod (811).

2. The die-casting device for casting non-ferrous metals with high precision according to claim 1, characterized in that, The flow dividing plate (809) is slidably connected to the guiding frame (801), and the push rods (811) are distributed in an array on one side of the flow dividing plate (809).

3. A die-casting device for casting non-ferrous metals with high precision according to claim 1, characterized in that, The first spray head (814) is slidably connected to the push rod (811), and the push rod (811) is slidably connected to the moving die (7).

4. A die-casting device for precision non-ferrous metal casting according to claim 1, characterized in that, A fixed die (2) is arranged inside one end of the frame (1), and a double-shaft motor (3) is fixed on the outer side of the other end of the frame (1). The output shaft of the double-shaft motor (3) is connected to a gear commutator (4), and a screw rod (5) is arranged on the output shaft of the gear commutator (4). The screw rod (5) is threadedly connected to the driving seat (6), and a moving die (7) is fixed on the other side of the driving seat (6).

5. The die-casting device for precision non-ferrous metal casting according to claim 4, characterized in that, A protective assembly (9) is arranged on the outer side of the other end of the push rod (811), and the protective assembly (9) includes a fixing ring (901). The fixing ring (901) is fixed on the outer peripheral surface of the push rod (811), and a second spring seat (902) is arranged on one side of the fixing ring (901). The end of the second spring seat (902) is fixed to a sliding sleeve (903), and a supporting plate (904) is rotatably connected to one side of the sliding sleeve (903).

6. The die-casting device for casting non-ferrous metals with high precision according to claim 5, characterized in that, A limiting plate (905) is fixed on the other side of the sliding sleeve (903), and a guiding groove (906) is formed inside the limiting plate (905). A sliding column (907) is slidably connected to the guiding groove (906), and a rotating shaft (908) is fixed to the end of the sliding column (907). An end cover (909) is arranged at one end of the rotating shaft (908).

7. A die-casting device for precision non-ferrous metal casting according to claim 6, characterized in that, The rotating shaft (908) is rotatably connected to the ejector rod (811), and the ejector rod (811) is slidably connected to the sliding sleeve (903).

8. A die-casting device for precision non-ferrous metal casting according to claim 6, characterized in that, A uniform distribution assembly (10) is connected to the bottom of the driving plate (803), and the uniform distribution assembly (10) includes a connecting rod (1001). The connecting rod (1001) is rotatably connected to the bottom of the driving plate (803), the lower end of the connecting rod (1001) is rotatably connected to a sliding plate (1002), and a limiting strip (1003) is slidably connected to one side of the sliding plate (1002).

9. A die-casting device for precision non-ferrous metal casting according to claim 8, characterized in that, The cross-section of the limiting strip (1003) is an isosceles trapezoid, and the limiting strip (1003) is fixedly connected to the flow dividing plate (809).

10. A die-casting device for high-precision non-ferrous metal casting according to claim 8, characterized in that, Tooth plates (1004) are symmetrically arranged on both sides of the sliding plate (1002), and a toothed ring (1005) is engaged with one side of the tooth plate (1004), and the toothed ring (1005) is fixedly connected to the ejector rod (811).

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