Non-ferrous metal die-casting die with multiple segments of demolding tracks

Abstract

The invention discloses a non-ferrous metal die-casting die with multiple segments of demolding tracks, and relates to the technical field of dies, the non-ferrous metal die-casting die comprises a support, an auxiliary plate A, an auxiliary plate B, a lower die, an upper die, a filling port and a fastening bolt, the auxiliary plate A and the auxiliary plate B are supported by the support, the lower die is fixedly connected to the top of the support, the upper die is arranged on the lower die, and the filling port is arranged on the upper die. The injection port is formed in the upper mold, the lower mold and the upper mold are fixedly connected through a fastening bolt, the double-dislocation-preventing butt joint assembly and the mold cavity vibration defoaming assembly are further included, the inner mold A and the inner mold B are placed through the arrangement of a placing bin and a limiting bin correspondingly, and a butt joint protruding block and a concave notch are matched and clamped; by means of the structure, accurate positioning between the inner molds can be achieved, the problem that dislocation is prone to occurring when fastening is conducted only through bolts in the prior art is effectively solved, the mold butt joint precision is improved, and therefore the size precision and the appearance quality of a formed product are guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of molds, in particular to a die-casting mold for nonferrous metals with multiple demoulding tracks. Background Art

[0002] In modern industrial production, non-ferrous metals are widely used in aerospace, automotive, and electronic communications due to their low density, high strength, and excellent corrosion resistance. Die casting is a key process in the manufacture of non-ferrous metal parts, and the performance of its molds plays a decisive role in product quality and production efficiency.

[0003] At present, traditional non-ferrous metal die-casting molds have many limitations in structural design and functional realization. In terms of mold splicing, bolt fastening is often used to connect the upper and lower molds. The stability of this single fastening method depends on the degree of tightening and the number of bolts, and it is difficult to cope with the complex stress conditions in the die-casting process of multi-stage demolding trajectories. In actual production, the mold is very prone to slight misalignment under the repeated stress generated by high temperature, high pressure and multi-stage demolding. Once misalignment occurs, not only will the size of the molding cavity change, resulting in excessive product dimensional accuracy, but also gaps will be generated at the parting surface, causing the molten metal to overflow and form flash burrs, increasing subsequent processing costs. More seriously, misalignment will disrupt the flow and solidification rules of the molten metal, causing internal defects such as pores, shrinkage holes, and cracks, significantly reducing the mechanical properties and reliability of the product, and even causing the product to be directly scrapped.

[0004] At the same time, in the metal solution infusion process, existing technologies are difficult to effectively solve the problem of bubble introduction. When the metal solution is injected into the mold circulation molding channel, it inevitably comes into contact with air. Air easily mixes into the solution to form bubbles. If these bubbles are not discharged in time during the solidification process of the metal solution, they will remain inside the product, forming surface pores, subcutaneous pores, and loose defects, which not only affect the appearance quality of the product, but also significantly reduce the density and thermal conductivity of the product, making it less corrosion-resistant, and seriously restricting the application and development of non-ferrous metal products in high-end fields. Therefore, the research and development of new technologies and devices that can effectively solve the problems of mold anti-misalignment and metal solution defoaming is of great significance to improving the quality and production efficiency of non-ferrous metal die-casting.

[0005] Therefore, the present invention proposes a die-casting mold for nonferrous metals with multiple demoulding tracks to solve the above problems. Summary of the Invention

[0006] In view of this, the technical problem to be solved by the present invention is to propose a die-casting mold for non-ferrous metals with multiple demoulding tracks to solve the problems existing in the prior art.

[0007] To achieve the above object, the present invention provides the following technical solutions: A die-casting mold for non-ferrous metals with multi-stage demolding trajectories, comprising: a support tray, an auxiliary plate A, an auxiliary plate B, a lower mold, an upper mold, a filling port, and fastening bolts. The auxiliary plate A and the auxiliary plate B are supported by the support tray. The lower mold is fixedly connected to the top of the support tray. The upper mold is disposed on the lower mold. The filling port is opened on the upper mold. The lower mold and the upper mold are fixedly connected by the fastening bolts. It further includes: a double anti-misalignment docking component and a mold cavity vibration defoaming component. The mold cavity vibration defoaming component is disposed on the double anti-misalignment docking component; The double anti-misalignment docking component is used for the mold docking work during metal casting; The mold cavity vibration defoaming component is used for the bubble elimination work during metal casting.

[0008] As an improvement, the double anti-misalignment docking component includes a placement cavity opened on the lower mold, and an inner mold A is placed in the placement cavity.

[0009] As an improvement, a diversion member is fixedly connected to the inner mold A. A liquid injection channel is opened on the inner mold A. Docking bumps are fixedly connected to the four corners of the inner mold A.

[0010] As an improvement, an inner mold B is disposed on the inner mold A, and recessed notches are opened at the four corners of the inner mold B.

[0011] As an improvement, a limiting cavity is opened on the bottom surface of the upper mold.

[0012] As an improvement, the mold cavity vibration defoaming component includes an auxiliary rod inserted into the auxiliary plate B. A limiting column cavity is opened at the bottom end of the auxiliary rod. Elliptical concave holes are equidistantly opened along the axis at the bottom end of the auxiliary rod.

[0013] As an improvement, a vertical groove is opened on the auxiliary plate A. A micro driver is fixedly connected in the vertical groove on the auxiliary plate A. A rotating column is fixedly connected to the upper end of the micro driver. A plugging column body is fixedly connected to the upper end of the rotating column. A fluid cavity is opened in the rotating column, and a spring is fixedly connected in the fluid cavity.

[0014] As an improvement, a perforated disc is slidably connected in the fluid cavity. The perforated disc is fixedly connected to the upper end of the spring. A knocking rod is fixedly connected to the upper end of the perforated disc.

[0015] As an improvement, the auxiliary rod is fixedly connected to the bottom end of the inner mold A.

[0016] Compared with the prior art, the present invention provides a die-casting mold for non-ferrous metals with multi-stage demolding trajectories, having the following beneficial effects: 1. Through the design of the double anti-misalignment docking component, the present invention can bring the following benefits: Improve docking accuracy: By setting up the placement bin and the restriction bin to place the inner mold A and the inner mold B respectively, and the matching engagement of the docking bump and the recessed notch, accurate positioning between the inner molds can be achieved, effectively avoiding the misalignment problem that easily occurs when only fastened by bolts in the traditional method, improving the docking accuracy of the molds, and thus ensuring the dimensional accuracy and appearance quality of the molded product; Enhance structural stability: The placement bin and the restriction bin provide a stable placement environment for the inner molds, restricting the freedom of movement of the inner molds during the docking process, and the engagement of the docking bump and the recessed notch further increases the connection strength and stability between the molds; The above double anti-misalignment structure can withstand the high temperature, high pressure generated during the die-casting process and the complex stresses during multi-stage demolding, reducing the possibility of misalignment of the molds due to factors such as vibration and uneven stress, and improving the service life of the molds; Reduce the rejection rate: Since it can effectively prevent the misalignment of the molds, the molding quality of the product is significantly improved, reducing problems such as flash burrs, dimensional deviations, and internal defects caused by mold misalignment, thereby reducing the rejection rate of the product, improving production efficiency, and reducing production costs.

[0017] 2. Through the design of the mold cavity vibration defoaming component, the present invention can bring the following benefits: Improve the appearance quality of the product: By applying vibration during the solidification process of the molten metal, it can prompt the internal bubbles to quickly discharge to the surface and burst, effectively avoiding the formation of surface pores and subcutaneous pores, making the surface of the molded metal product smooth and flat, without the need for additional complex surface treatment to cover the pore defects, greatly improving the appearance quality of the product and meeting the strict requirements for appearance of high-end products; Enhance the internal performance of the product: Eliminating the bubbles in the molten metal can effectively solve internal defect problems such as porosity, significantly improving the density of the product, which greatly enhances the mechanical properties of the metal product, such as strength, hardness, toughness, etc., reducing the risk of product failure caused by internal defects, and enhancing the reliability and durability of the product in practical applications; Improve production stability: The stable and efficient defoaming process reduces the product quality fluctuations caused by bubble problems and reduces the rejection rate; During the production process, there is no need to frequently adjust process parameters or stop for maintenance due to bubble defects, ensuring the continuity of the production process, helping enterprises to achieve stable large-scale production, and enhancing the executability of the production plan.

[0018] 3. Through the design of the auxiliary rod in the mold cavity vibration defoaming component, the present invention can bring the following benefits: Optimize the heat dissipation effect and improve the heat dissipation efficiency: The auxiliary rod can contact the non-ferrous metal solution, increasing the heat dissipation area, enabling the heat of each part of the solution to be transferred to the outside of the mold more quickly, accelerating the heat dissipation speed, shortening the solidification time of the product, and improving the production efficiency; and through the reasonable distribution of the auxiliary rods, the heat dissipation is balanced and strong, which can make the heat dissipation of the non-ferrous metal solution more uniform in each part, avoiding local overheating or overcooling, reducing defects such as product deformation and cracking caused by thermal stress, and improving the dimensional accuracy and quality stability of the product; Enhance the vibration force conduction and defoam efficiently: The auxiliary rod, as the conduction medium of the vibration force, can accurately and quickly transfer the vibration force generated by the vibration source to each part of the metal solution, making the bubbles in the solution subject to uniform external force, easier to float and discharge, effectively improving the defoaming effect, reducing defects such as pores and looseness inside the product, and improving the density and mechanical properties of the product; Precisely control and reduce energy loss: Since the auxiliary rod can accurately transfer the vibration force to the designated position, the operator can flexibly adjust the vibration parameters according to the structure and process requirements of the product, realizing precise control of the defoaming process and adapting to the production needs of different types and specifications of products. Brief Description of the Drawings

[0019] Figure 1 It is the external view of the present invention; Figure 2 It is the disassembled view of the main structure of the present invention; Figure 3 It is the disassembled view of the main structure of the present invention from another perspective; Figure 4 It is the related structure diagram of inner mold A and inner mold B in the present invention; Figure 5 It is the related structure diagram of the lower mold and inner mold A in the present invention; Figure 6 It is the present invention Figure 5 The enlarged view of the structure at A in the present invention; Figure 7 It is the related structure diagram of auxiliary plate A, auxiliary plate B, lower mold, and auxiliary rod in the present invention; Figure 8 It is the present invention Figure 7 The enlarged view of the structure at B in the present invention; Figure 9 It is the working state diagram of the cavity vibration defoaming component in the present invention.

[0020] In the figure: 1. Support bracket; 2. Auxiliary plate A; 3. Auxiliary plate B; 4. Lower mold; 5. Upper mold; 6. Filling port; 7. Tightening bolt; 8. Dual anti-displacement docking component; 801. Placement bin; 802. Inner mold A; 803. Flow guide; 804. Liquid injection channel; 805. Docking bump; 806. Inner mold B; 807. Concave notch; 808. Restriction bin; 9. Mold cavity vibration defoaming component; 901. Auxiliary rod; 902. Restriction column cavity; 903. Oval concave hole; 904. Micro driver; 905. Rotating column; 9051. Insertion column body; 906. Fluid cavity; 907. Spring; 908. Perforated disc; 909. Knocking rod. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] The present invention will be further described in detail below with reference to the drawings and embodiments.

[0023] Embodiment: Please refer to Figures 1 to 6 as shown: To solve the problems mentioned in the technical solutions, the embodiment of the present application provides a die-casting mold for non-ferrous metals with multiple-stage demolding trajectories, including: support bracket 1, auxiliary plate A 2, auxiliary plate B 3, lower mold 4, upper mold 5, filling port 6, fastening bolt 7. The auxiliary plate A 2 and the auxiliary plate B 3 are supported by the support bracket 1. The lower mold 4 is fixedly connected to the top of the support bracket 1. The upper mold 5 is arranged on the lower mold 4. The filling port 6 is opened on the upper mold 5. The lower mold 4 and the upper mold 5 are fixedly connected by the fastening bolt 7. It further includes: a dual anti-displacement docking component 8 and a mold cavity vibration defoaming component 9. The mold cavity vibration defoaming component 9 is arranged on the dual anti-displacement docking component 8; The dual anti-displacement docking component 8 is used for the mold docking work during metal casting; the dual anti-displacement docking component 8 includes a placement bin 801 opened on the lower mold 4. An inner mold A 802 is placed in the placement bin 801. A flow guide 803 is fixedly connected to the inner mold A 802. A liquid injection channel 804 is opened on the inner mold A 802. Docking bumps 805 are fixedly connected to the four corners of the inner mold A 802. An inner mold B 806 is arranged on the inner mold A 802. Concave notches 807 are opened at the four corners of the inner mold B 806. A restriction bin 808 is opened on the bottom surface of the upper mold 5.

[0024] Among them: The auxiliary plate A2 is provided with a vertical groove adapted to the rotating column 905, and the auxiliary plate B3 is provided with a vertical groove adapted to the auxiliary rod 901. However, the inner cavity diameter of the vertical groove adapted to the auxiliary rod 901 is larger than the inner cavity diameter of the vertical groove adapted to the rotating column 905, so that the auxiliary rod 901 can be in a state of being supported by the auxiliary plate A2.

[0025] The double anti-displacement docking assembly 8 is used for the mold docking work during metal casting.

[0026] The placement bin 801 is adapted to the inner mold A802.

[0027] The inner mold B806 is provided with a through hole for the penetration of the flow guiding member 803 on the inner mold A802, so as to receive the metal solution poured from the filling port 6.

[0028] The docking bump 805 is adapted to the recessed notch 807.

[0029] The limiting bin 808 is adapted to the inner mold B806.

[0030] On the basis that the lower mold 4 and the upper mold 5 are docked by the fastening bolts 7, the inner mold A802 is placed in the placement bin 801, and the inner mold B806 is placed in the limiting bin 808. This is a primary docking action; the docking bump 805 on the inner mold A802 is adaptively engaged with the recessed notch 807 on the inner mold B806. This is a primary docking action.

[0031] A further embodiment: Please refer to Figures 6 to 9 as shown: The mold cavity vibration defoaming assembly 9 is used for the bubble elimination work during metal casting. The mold cavity vibration defoaming assembly 9 includes an auxiliary rod 901 inserted into the auxiliary plate B3. A limiting column cavity 902 is provided at the bottom end of the auxiliary rod 901. Elliptical concave holes 903 are equidistantly arranged along the axis at the bottom end of the auxiliary rod 901. A vertical groove is provided on the auxiliary plate A2, and a micro driver 904 is fixedly connected in the vertical groove on the auxiliary plate A2. A rotating column 905 is fixedly connected to the upper end of the micro driver 904. A plugging column body 9051 is fixedly connected to the upper end of the rotating column 905. A fluid cavity 906 is provided in the rotating column 905. A spring 907 is fixedly connected in the fluid cavity 906. A perforated disc 908 is slidably connected in the fluid cavity 906. The perforated disc 908 is fixedly connected to the upper end of the spring 907. A knocking rod 909 is fixedly connected to the upper end of the perforated disc 908. The auxiliary rod 901 is fixedly connected to the bottom end of the inner mold A802.

[0032] Among them: The mold cavity vibration defoaming assembly 9 is used for the bubble elimination work during metal casting.

[0033] In addition to being used for heat dissipation, the auxiliary rod 901 can also be used for vibration conduction work.

[0034] The insertion column 9051 is adapted to the limiting column cavity 902 and is used to maintain the axial alignment of the auxiliary rod 901 and the rotating column 905.

[0035] The fluid cavity 906 is filled with non-Newtonian fluid, which can be used indirectly in cooperation with the perforated disc 908 to prevent the knocking rod 909 from performing a knocking action when the micro driver 904 stalls, avoiding loosening of the docking die.

[0036] The knocking rod 909 is used to perform a knocking action on the auxiliary rod 901, so as to eliminate the bubbles in the molten metal in the die through the vibration transmission of the auxiliary rod 901.

[0037] The working principle of all the contents in the above embodiments is as follows: The following is the working process of the double anti-displacement docking component 8: During use, first place the inner die A802 in the placement bin 801. At this time, the auxiliary rod 901 on the auxiliary plate B3 will penetrate into the liquid injection channel 804 on the inner die A802. Further, the inner die B806 is buckled on the inner die A802. At this time, the docking convex block 805 and the recessed notch 807 are used as the docking components for buckling. After docking, use a high-temperature resistant fixing part for fixing operation. Further, after the inner die A802 and the inner die B806 are connected, dock the upper die 5 and the lower die 4. At this time, the inner die B806 will be restricted in the restriction bin 808. Further, then fix the lower die 4 and the upper die 5 tightly by the fastening bolt 7; Further, after the above fixing action is completed, pour the molten metal into the die through the filling port 6. The molten metal will be transferred from the filling port 6 and the flow guide 803 to the liquid injection channel 804 to complete the filling work; Further, by setting the placement bin 801 and the restriction bin 808 to place the inner die A802 and the inner die B806 respectively, and the matching engagement of the docking convex block 805 and the recessed notch 807, accurate positioning between the inner dies can be achieved, effectively avoiding the misalignment problem that is prone to occur when only relying on bolts for fastening in the traditional method, improving the docking accuracy of the die, and thus ensuring the dimensional accuracy and appearance quality of the molded product; At the same time, the placement bin 801 and the restriction bin 808 provide a stable placement environment for the inner die, restricting the movement freedom of the inner die during the docking process, and the engagement of the docking convex block 805 and the recessed notch 807 further increases the connection strength and stability between the dies; the above double anti-displacement structure can withstand the high temperature, high pressure generated during the die-casting process and the complex stresses during multi-stage demolding, reducing the possibility of misalignment of the die due to vibration and uneven stress, and improving the service life of the die; Moreover, since it can effectively prevent die misalignment, the forming quality of the product is significantly improved, reducing problems such as flash burrs, dimensional deviations, and internal defects caused by die misalignment. As a result, the rejection rate of the product is reduced, production efficiency is increased, and production costs are lowered.

[0038] Please refer to the above working process Figures 1 to 6 .

[0039] The following is the working process of the cavity vibration defoaming component 9: Furthermore, after the non-ferrous metal solution filling is completed, the micro driver 904 is started. The micro driver 904 will drive the rotating column 905 to rotate. During the rotation of the rotating column 905, the plug column 9051 will cooperate with the limiting column cavity 902 at the bottom end of the auxiliary rod 901, so as to stably maintain the axis alignment of the auxiliary rod 901 and the rotating column 905. Furthermore, as the rotating column 905 rotates, the knocking rod 909 will move into and then away from the elliptical concave hole 903. During this process, the perforated disc 908 at the bottom end of the elliptical concave hole 903 will slide in the fluid cavity 906 opened in the rotating column 905, and the spring 907 will be repeatedly compressed. At the same time, during this process, the knocking rod 909 will have an impact on the auxiliary rod 901 every time it enters the elliptical concave hole 903, so as to transmit this vibration to the metal solution through the auxiliary rod 901, thereby completing the defoaming treatment work. It should be noted that the number of cavity vibration defoaming components 9 and the rotation speed of the micro driver 904 can be controlled according to specific conditions; Furthermore, through the design of the cavity vibration defoaming component 9, vibration can be applied during the solidification process of the molten metal, which can prompt internal bubbles to quickly discharge to the surface and burst, effectively avoiding the formation of surface pores and subcutaneous pores, making the surface of the formed metal product smooth and flat, without the need for additional complex surface treatment to cover pore defects, greatly improving the appearance quality of the product, and meeting the strict requirements for appearance of high-end products; Moreover, eliminating bubbles in the molten metal can effectively solve internal defect problems such as porosity, significantly improve the density of the product, which greatly enhances the mechanical properties of the metal product, such as strength, hardness, toughness, etc., reduces the risk of product failure caused by internal defects, and enhances the reliability and durability of the product in practical applications; The stable and efficient defoaming process reduces the product quality fluctuations caused by bubble problems and lowers the rejection rate; during the production process, there is no need to frequently adjust process parameters or stop for maintenance due to bubble defects, ensuring the continuity of the production process, which helps enterprises achieve stable large-scale production and improve the executability of production plans.

[0040] Furthermore, the auxiliary rod 901 can come into contact with the non-ferrous metal solution, increasing the heat dissipation area, enabling the heat of each part of the solution to be transferred to the outside of the mold more quickly, accelerating the heat dissipation speed, shortening the solidification time of the product, and improving production efficiency. Moreover, through the reasonable distribution of the auxiliary rod 901, with strong heat dissipation balance, the heat dissipation of the non-ferrous metal solution can be more uniform in each part, avoiding local overheating or overcooling, reducing defects such as product deformation and cracking caused by thermal stress, and improving the dimensional accuracy and quality stability of the product. At the same time, as the conduction medium of the vibration force, the auxiliary rod 901 can accurately and quickly transfer the vibration force generated by the vibration source to each part of the metal solution, enabling the bubbles in the solution to be uniformly affected by the external force and making it easier to float and discharge, effectively improving the defoaming effect, reducing defects such as pores and looseness inside the product, and improving the density and mechanical properties of the product. And because the auxiliary rod 901 can accurately transfer the vibration force to the specified position, the operator can flexibly adjust the vibration parameters according to the structure and process requirements of the product to achieve precise control of the defoaming process and meet the production requirements of different types and specifications of products.

[0041] Please refer to the above working process Figures 6 to 9 。

[0042] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0043] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A die-casting mold for non-ferrous metals with a multi-stage demolding trajectory, comprising: Support bracket (1), auxiliary plate A (2), auxiliary plate B (3), lower mold (4), upper mold (5), filling port (6), fastening bolt (7). The auxiliary plate A (2) and auxiliary plate B (3) are supported by the support bracket (1). The lower mold (4) is fixedly connected to the top of the support bracket (1). The upper mold (5) is arranged on the lower mold (4). The filling port (6) is opened on the upper mold (5). The lower mold (4) and the upper mold (5) are fixedly connected by the fastening bolt (7). It is characterized in that it further includes: a double anti-misalignment docking component (8) and a mold cavity vibration defoaming component (9). The mold cavity vibration defoaming component (9) is arranged on the double anti-misalignment docking component (8). The double anti-misalignment docking component (8) is used for the mold docking work during metal casting. The mold cavity vibration defoaming component (9) is used for the bubble elimination work during metal casting.

2. The die-casting mold for non-ferrous metals with a multi-stage demolding trajectory according to claim 1, wherein: The double anti-misalignment docking component (8) includes a placement cavity (801) opened on the lower mold (4), and an inner mold A (802) is placed in the placement cavity (801).

3. The die-casting mold for non-ferrous metals with multi-stage demolding trajectories according to claim 2, characterized in that: A diversion member (803) is fixedly connected to the inner mold A (802). A liquid injection channel (804) is opened on the inner mold A (802). Docking bumps (805) are fixedly connected to the four corners of the inner mold A (802).

4. A die-casting mold for non-ferrous metals with a multi-stage demolding trajectory according to claim 2, characterized in that: An inner mold B (806) is arranged on the inner mold A (802), and recessed notches (807) are opened at the four corners of the inner mold B (806).

5. A die-casting mold for non-ferrous metals with a multi-stage demolding trajectory according to claim 1, characterized in that: A limiting cavity (808) is opened on the bottom surface of the upper mold (5).

6. A die-casting mold for non-ferrous metals with a multi-stage demolding trajectory according to claim 1, characterized in that: The mold cavity vibration defoaming component (9) includes an auxiliary rod (901) inserted on the auxiliary plate B (3). A limiting column cavity (902) is opened at the bottom end of the auxiliary rod (901). Elliptical concave holes (903) are equidistantly opened along the axis at the bottom end of the auxiliary rod (901).

7. A die-casting mold for non-ferrous metals with a multi-stage demolding trajectory according to claim 1, characterized in that: A vertical groove is opened on the auxiliary plate A (2). A micro driver (904) is fixedly connected in the vertical groove on the auxiliary plate A (2). A rotating column (905) is fixedly connected to the upper end of the micro driver (904). A plugging column body (9051) is fixedly connected to the upper end of the rotating column (905). A fluid cavity (906) is opened in the rotating column (905). A spring (907) is fixedly connected in the fluid cavity (906).

8. A die-casting mold for non-ferrous metals with a multi-stage demolding trajectory according to claim 7, characterized in that: A perforated disc (908) is slidably connected in the fluid cavity (906). The perforated disc (908) is fixedly connected to the upper end of the spring (907). A knocking rod (909) is fixedly connected to the upper end of the perforated disc (908).

9. A die-casting mold for non-ferrous metals with a multi-stage demolding trajectory according to claim 6, characterized in that: The auxiliary rod (901) is fixedly connected to the bottom end of the inner mold A (802).

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