A pouring system structure of a damping tower pressure casting mold

Abstract

The utility model relates to a kind of pouring system structure of damping tower die casting mould, including material cake cavity and two product runner cavities being communicated with the material cake cavity, two the product runner cavities include main runner cavity, two branch runner cavities, eight secondary branch runner cavities and product cavity, the one end of two the main runner cavities is communicated with the material cake cavity, two the branch runner cavities are symmetrically arranged, and one end is communicated with the other end of corresponding the main runner cavity, eight the secondary branch runner cavities are arranged at intervals, and wherein first and eighth the secondary branch runner cavities one end respectively communicates the other end of two the branch runner cavities, the other end of eight the secondary branch runner cavities is communicated with the product cavity, and the other end of each the secondary branch runner cavity is communicated with corresponding the product cavity and forms inner gate.The utility model can improve the technical problem that the production efficiency of existing damping tower is lower, and production cost is higher, and the rate of defective product is higher.

Description

Technical Field

[0001] This utility model relates to the field of die-casting mold technology, and in particular to a casting system structure for a shock-absorbing tower die-casting mold. Background Technology

[0002] Shock absorber towers play a crucial role in the vibration damping of automotive frames. These products are large in size and require high internal quality and mechanical performance. Typically, shock absorber towers are manufactured using die-casting molds, and ensuring the integrity of the casting system structure is fundamental to guaranteeing product quality. Nowadays, new energy vehicle shock absorber tower die-casting is beginning to use heat-treated raw materials, meaning high performance is required immediately after die-casting. This places even higher demands on the die-casting process, especially the casting system structure of the mold, to ensure the quality and performance of the product during the filling process. However, traditional shock absorber tower die-casting molds have simple casting system designs, typically producing one piece per mold, resulting in low production efficiency. Furthermore, post-die-casting heat treatment is required to obtain the desired casting, leading to high production costs, numerous processes, and a high product defect rate. Utility Model Content

[0003] This utility model addresses the technical problems of low production efficiency, high production cost, and high defect rate of existing shock absorber towers by providing a casting system structure for a shock absorber tower die-casting mold.

[0004] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0005] A casting system structure for a shock absorber tower die-casting mold includes a cake cavity and two product flow channel cavities, both connected to the cake cavity. Each product flow channel cavity includes a main flow channel cavity, two branch flow channel cavities, eight secondary branch flow channel cavities, and a product cavity. One end of each of the two main flow channel cavities is connected to the cake cavity. The two branch flow channel cavities are symmetrically arranged, and one end of each is connected to the other end of the corresponding main flow channel cavity. The eight secondary branch flow channel cavities are arranged at intervals, with one end of the first and eighth secondary branch flow channel cavities respectively connected to the two branch flow channels. At the other end of the cavity, one end of the second to fourth sub-branch channel cavities is connected to the side wall of one of the branch channel cavities, one end of the fifth to seventh sub-branch channel cavities is connected to the side wall of another branch channel cavity, and the other end of the eight sub-branch channel cavities is connected to the product cavity. The other end of each sub-branch channel cavity connected to the corresponding product cavity forms an ingate. The cross-sectional area of ​​the cake cavity is S1, and the sum of the cross-sectional areas of the sixteen ingates is equal to (1 / 11-1 / 9)*S1.

[0006] The beneficial effects of this utility model are as follows: the material enters from the cake cavity and is diverted to four branch flow channels through two main flow channels. Under the guidance of each branch flow channel, the two product cavities are simultaneously filled, and two identical shock absorbers are manufactured at the same time, which improves the injection efficiency of the product and solves the technical problems of low production efficiency, high production cost and high defect rate of existing shock absorbers. At the same time, the sum of the cross-sectional areas of the sixteen ingates is equal to (1 / 11-1 / 9)*S1, which can ensure the smooth entry of the material into the product cavity and ensure the density and performance of the product structure.

[0007] Based on the above technical solution, the present invention can be further improved as follows.

[0008] Furthermore, the cross-sectional area of ​​both main flow channels is S2, and the cross-sectional area of ​​each branch flow channel near the end of the corresponding main flow channel is S3, and S... 21 =2*(1.05-1.1)S3.

[0009] The beneficial effect of adopting the above-mentioned further scheme is to ensure that the material in the main channel cavity flows quickly and fully into its corresponding two branch channel cavities, thus ensuring sufficient and smooth material supply.

[0010] Furthermore, the sum of the cross-sectional areas of one end of the four sub-branch channels that are simultaneously connected to the same branch channel is S4, and S3 = (1.05-1.1)S4.

[0011] The beneficial effect of adopting the above-mentioned further scheme is to ensure that the branch flow channel cavity supplies sufficient and smooth material to the four secondary branch flow channel cavities connected to it.

[0012] Furthermore, the width and thickness of each branch flow channel cavity gradually decrease by 10% from one end to the other.

[0013] The beneficial effects of adopting the above-mentioned further scheme are as follows: as the width and thickness of the branch flow channel cavity gradually decrease, the cross-sectional area of ​​the flow channel becomes smaller near the end of the secondary branch flow channel cavity. According to the principle of fluid continuity, under the condition of constant flow rate, the reduction of cross-sectional area will increase the flow velocity. This can make the melt flow velocity through each secondary branch flow channel cavity more balanced, thereby filling each product molding cavity more evenly, avoiding the situation that some cavities are filled too quickly or too slowly, improving the consistency of product quality, and improving flow balance.

[0014] Furthermore, the eighth sub-branch flow channel of the two product flow channel cavities is close to each other, and in each product flow channel cavity, the thickness of the third to sixth sub-branch flow channel cavities is 10% thicker than the thickness of the remaining sub-branch flow channel cavities.

[0015] The beneficial effect of adopting the above-mentioned further solution is that it ensures that the material flowing out of the branch channel cavity fully enters the third to sixth sub-branch channel cavities, and ensures that the main positions in the product cavity are filled to form the filling effect of the product.

[0016] Furthermore, in each product runner cavity, the thickness of the ingate in the third to sixth sub-runner cavities is 10% thicker than the thickness of the ingate in the remaining sub-runner cavities.

[0017] The beneficial effect of adopting the above-mentioned further solution is that it ensures the filling of the main positions inside the product cavity to form the filling effect of the product.

[0018] Furthermore, both product flow channels further include an exhaust assembly, and both exhaust assemblies include a passive exhaust plate, a first active vacuum valve connected to the passive exhaust plate, a product air passage connected to the first active vacuum valve, and multiple product slag bags connected to the product air passages simultaneously. Each product slag bag is spaced apart and connected to the product cavity.

[0019] The beneficial effects of adopting the above-mentioned further solution are: by using a passive exhaust plate and a first active vacuum valve, the gas in the product cavity can be extracted in a timely manner, avoiding the formation of defects such as pores and bubbles in the product, thereby improving the density and surface quality of the product.

[0020] Furthermore, the cross-sectional area of ​​one end of the product gas passage that connects to the product residue cavity is S. 63 S 63 It is equal to (50%-55%) of the cross-sectional area of ​​the corresponding eight ingates.

[0021] The beneficial effect of adopting the above-mentioned further solution is that the ingate is the channel through which the melt enters the product molding cavity. During the casting process, as the melt is injected, the gas in the cavity needs to be discharged through the product gas channel. Designing S63 with eight ingate cross-sectional areas can roughly match the amount of gas generated during casting.

[0022] Furthermore, it also includes a sample forming cavity, which includes two sample branch flow channel cavities, a confluence cavity, and a sample cavity. One end of each of the two sample branch flow channel cavities is connected to one of the branch flow channel cavities of the two product flow channel cavities, and the other end is simultaneously connected to one end of the confluence cavity. The sample cavity is connected to the other end of the confluence cavity. The sample cavity is also connected to a sample residue bag cavity, and the sample residue bag cavity is connected to a second active vacuum valve through a first air extraction channel.

[0023] The beneficial effects of adopting the above-mentioned further scheme are as follows: while casting to form the product, the melt in the two branch flow channel cavities simultaneously enters the two test piece branch flow channel cavities, merges through the merging cavity, and then enters the test piece cavity to form a test piece. The blank test piece is approximately equivalent to the product body test piece. Test test pieces are produced simultaneously when producing the left and right parts in each mold, eliminating the need to take samples from the product body when testing performance, reducing product damage, and lowering costs.

[0024] Furthermore, the sample forming cavity also includes two second suction channels, one end of each of the two second suction channels is connected to the second active vacuum valve, and the other end is connected to the product cavity of the two product flow channel cavities respectively.

[0025] The beneficial effects of adopting the above-mentioned further solution are: by connecting the two second air extraction channels, the gas in the two product cavities can be further extracted by the second active vacuum valve, avoiding the formation of defects such as pores and bubbles in the product, and improving the density and surface quality of the product. Attached Figure Description

[0026] Figure 1 This is a structural diagram of the casting system of the shock absorber tower die-casting mold of this utility model;

[0027] Figure 2 For the present utility model Figure 1 A magnified view of a portion of the image;

[0028] Figure 3 For the present utility model Figure 2 First enlarged view of the area;

[0029] Figure 4 For the present utility model Figure 2 Second enlarged view of the area;

[0030] Figure 5 This is a partial structural cross-sectional view of the casting system structure of this utility model;

[0031] Figure 6 For the present utility model Figure 2 The third enlarged view;

[0032] The attached diagram lists the components represented by each number as follows:

[0033] 1. Material cake cavity;

[0034] 2. Mainstream cavity;

[0035] 3. Branch flow channel cavity;

[0036] 4. Secondary branch channel cavity; 41. Ingate; 42. Shear cavity;

[0037] 5. Product cavity;

[0038] 6. Exhaust assembly; 61. Passive exhaust plate; 62. First active vacuum valve; 63. Product air passage; 64. Product residue cavity;

[0039] 7. Specimen forming cavity; 71. Specimen branch flow channel cavity; 72. Merging cavity; 73. Specimen cavity; 74. Specimen slag bag cavity; 75. First evacuation channel; 76. Second active vacuum valve; 77. Second evacuation channel. Detailed Implementation

[0040] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0041] Example 1

[0042] like Figures 1 to 5 A casting system structure for a shock absorber tower die-casting mold includes a cake cavity 1 and two product flow channel cavities both connected to the cake cavity 1. Each product flow channel cavity includes a main flow channel cavity 2, two branch flow channel cavities 3, eight secondary branch flow channel cavities 4, and a product cavity 5. One end of each of the two main flow channel cavities 2 is connected to the cake cavity 1. The two branch flow channel cavities 3 are symmetrically arranged, and one end of each is connected to the other end of the corresponding main flow channel cavity 2. The eight secondary branch flow channel cavities 4 are arranged at intervals, with one end of the first and eighth secondary branch flow channel cavities 4 respectively connected to two branch flow channel cavities. At the other end of the flow channel cavity 3, one end of the second to fourth sub-branch flow channel cavities 4 is connected to the side wall of one of the branch flow channel cavities 3, one end of the fifth to seventh sub-branch flow channel cavities 4 is connected to the side wall of another branch flow channel cavity 3, and the other end of the eight sub-branch flow channel cavities 4 is connected to the product cavity 5. The other end of each sub-branch flow channel cavity 4 connected to the corresponding product cavity 5 forms an ingate 41. The cross-sectional area of ​​the cake cavity 1 is S1. The sum of the cross-sectional areas of the sixteen ingates 41 is equal to (1 / 11-1 / 9)*S1.

[0043] The beneficial effects of this embodiment are as follows: the material enters from the cake cavity 1 and is diverted to four branch flow channels 3 through two main flow channels 2. Under the guidance of each secondary flow channel 4, the material is simultaneously injected into the two product cavities 5, thereby creating two identical shock absorbers. This improves the injection efficiency of the product and addresses the technical problems of low production efficiency, high production cost, and high defect rate of existing shock absorbers. At the same time, the sum of the cross-sectional areas of the sixteen ingates 41 is equal to (1 / 11-1 / 9)*S1, which ensures the smooth entry of the material into the product cavity 5 and guarantees the density and performance of the product structure.

[0044] Based on the above embodiment, each end of the ingate 41 that connects to the product cavity 5 is provided with a shearing cavity 42, so as to shear and separate the parts formed at the secondary runner cavity 4 and the product cavity 5 during product molding.

[0045] Example 2

[0046] like Figures 1 to 3 Based on Example 1, the cross-sectional area of ​​both main channel cavities 2 is S2, and the cross-sectional area of ​​each branch channel cavity 3 near the corresponding main channel cavity 2 is S3, and S... 21 =2*(1.05-1.1)S3.

[0047] The beneficial effect of adopting the preferred scheme in the above embodiments is to ensure that the material in the main flow channel 2 flows quickly and fully into its corresponding two branch flow channels 3, thus ensuring sufficient and smooth material supply.

[0048] Example 3

[0049] like Figures 1 to 3 Based on Examples 1 and 2, the sum of the cross-sectional areas of one end of the four secondary branch flow channels 4 that are connected to the same branch flow channel 3 is S4, and S3 = (1.05-1.1)S4.

[0050] The advantage of adopting the preferred scheme in the above embodiments is that it ensures sufficient and smooth material supply from the branch flow channel cavity 3 to the four secondary branch flow channel cavities 4 connected to it.

[0051] Example 4

[0052] like Figures 1 to 3 Based on Examples 1-3, the width and thickness of each branch flow channel cavity 3 gradually decrease by 10% from one end to the other.

[0053] The beneficial effect of adopting the preferred scheme in the above embodiments is that as the width and thickness of the branch channel cavity 3 gradually decrease, the cross-sectional area of ​​the channel becomes smaller near the end of the secondary branch channel cavity 4. According to the principle of fluid continuity, under the condition of constant flow rate, the reduction of cross-sectional area will increase the flow velocity. This can make the melt flow velocity through each secondary branch channel cavity 4 more balanced, thereby filling each product molding cavity more evenly, avoiding the situation that some cavities are filled too quickly or too slowly, improving the consistency of product quality and improving flow balance.

[0054] The gradual change in width and thickness of each branch flow channel cavity 3 guides the flow of the melt within the flow channel, allowing it to be more evenly distributed into each secondary flow channel. As the flow resistance of the melt gradually changes in the main flow channel, it prompts the melt to be distributed in a more reasonable manner at different locations, reducing pressure differences caused by flow imbalance, thereby reducing the probability of product defects such as flash and insufficient material.

[0055] The width and thickness of each branch flow channel cavity 3 gradually decrease, so that after the melt in the flow channel cools and solidifies, the contact area and clamping force between the melt and the flow channel wall gradually decrease. This reduces the demolding difficulties caused by the adhesion of the solidified material to the flow channel, reduces the risk of damage to the mold and the product, and improves production efficiency.

[0056] Example 5

[0057] like Figures 1 to 3 Based on Examples 1-4, the eighth secondary branch channel cavity 4 of the two product flow channels is close to each other, and in each product flow channel cavity, the thickness of the third to sixth secondary branch channel cavity 4 is 10% thicker than the thickness of the other secondary branch channel cavity 4.

[0058] The beneficial effect of adopting the preferred solution in the above embodiments is that it ensures that the material flowing out of the branch channel cavity 3 fully enters the third to sixth sub-branch channel cavities 4, and ensures that the main positions in the product cavity 5 are filled to form the filling effect of the product.

[0059] Example 6

[0060] like Figures 1 to 3 Based on Examples 1-5, in each product runner cavity, the thickness of the ingate 41 of the third to sixth sub-branch runner cavity 4 is 10% thicker than the thickness of the ingate 41 of the other sub-branch runner cavities 4.

[0061] The advantage of adopting the preferred solution in the above embodiments is that it ensures that the filling of the main positions in the product cavity 5 forms the filling effect of the product.

[0062] Example 7

[0063] like Figure 1 , Figure 2 as well as Figure 4 Based on Examples 1-6, both product flow channels further include an exhaust assembly 6. Both exhaust assemblies 6 include a passive exhaust plate 61, a first active vacuum valve 62 connected to the passive exhaust plate 61, a product air passage 63 connected to the first active vacuum valve 62, and multiple product slag chambers 64 that are simultaneously connected to the product air passages 63. Each product slag chamber 64 is spaced apart and is connected to the product chamber 5.

[0064] The beneficial effects of the preferred scheme in the above embodiments are that the gas in the product cavity 5 is extracted in time by the passive exhaust plate 61 and the first active vacuum valve 62, avoiding the formation of defects such as pores and bubbles in the product, and improving the density and surface quality of the product. At the same time, the product slag enclosure 64 can collect slag and impurities generated during the casting process and prevent them from entering the product cavity 5, thereby reducing the impurity content of the product and improving the purity and performance of the product. Multiple product slag enclosures 64 are connected to the product cavity 5 and, together with the exhaust assembly 6, can form a relatively uniform pressure distribution in different parts of the cavity, so that the plastic melt fills the cavity more evenly and avoids problems such as product deformation and dimensional deviation caused by excessively high or low local pressure.

[0065] Because the gas can be quickly expelled, the melt can fill the cavity and cool and solidify more rapidly, thus shortening the molding cycle of a single product and improving production efficiency. Timely venting of gas from the cavity prevents the gas from corroding the mold surface under high temperature and pressure, thereby extending the mold's service life. The venting assembly 6 helps to even out the temperature distribution within the mold, reducing thermal stress caused by localized overheating or undercooling, lowering the risk of mold deformation and cracking, and further extending the mold's service life.

[0066] Based on the above embodiment, the product air passage 63 and the corresponding product flow channel cavity are located on both sides of the product cavity 5, and the product air passage 63 also includes a main air passage and multiple branch air passages, each branch air passage being connected to each product residue cavity 64.

[0067] Example 8

[0068] like Figure 2 and Figure 4 Based on Examples 1-7, the cross-sectional area of ​​one end of the product gas passage 63 that connects to the product residue cavity 64 is S. 63 S 63 It is equal to (50%-55%) of the cross-sectional area of ​​the corresponding eight ingates 41.

[0069] The beneficial effect of adopting the preferred solution in the above embodiments is that the ingate 41 is the channel for the melt to enter the product molding cavity. During the casting process, as the melt is injected, the gas in the cavity needs to be discharged through the product gas channel. Designing S63 to be 50%-55% of the cross-sectional area of ​​eight ingates 41 can roughly match the amount of gas generated during casting.

[0070] The well-designed S63 structure ensures that gas can be discharged quickly and smoothly, allowing the melt to fill the cavity more tightly. This improves the density and quality of the product, reduces the incidence of problems such as decreased product strength and poor appearance caused by porosity, and avoids the accumulation and flow of gas on the surface of the melt, thus effectively preventing the occurrence of gas lines and improving the surface finish and aesthetics of the product.

[0071] Because the gas can be expelled quickly, the melt can fill the cavity and cool and solidify more rapidly, thus shortening the molding cycle of a single product.

[0072] Example 9

[0073] like Figure 1 , Figure 2 as well as Figure 6 Based on embodiments 1-8, the casting system structure of the shock-absorbing tower die-casting mold of this utility model further includes a test piece forming cavity 7. The test piece forming cavity 7 includes two test piece branch flow channel cavities 71, a confluence cavity 72, and a test piece cavity 73. One end of each of the two test piece branch flow channel cavities 71 is connected to one of the branch flow channel cavities 3 of the two product flow channel cavities, and the other end is connected to one end of the confluence cavity 72. The test piece cavity 73 is connected to the other end of the confluence cavity 72. The test piece cavity 73 is also connected to a test piece slag encapsulation cavity 74. The test piece slag encapsulation cavity 74 is connected to a second active vacuum valve 76 through a first air extraction channel 75.

[0074] The beneficial effect of adopting the preferred scheme in the above embodiments is that, while casting to form the product, the melt in the two branch flow channel cavities 3 simultaneously enters the two test piece branch flow channel cavities 71, merges through the confluence cavity 72, and then enters the test piece cavity 73 to form a test piece. The blank test piece is approximately equivalent to the product body test piece. Test test pieces are produced simultaneously when producing the left and right parts in each mold, eliminating the need to take samples from the product body when testing performance, reducing product damage, and lowering costs.

[0075] The slag cavity 74 of the test piece can collect slag and impurities generated during the casting process, preventing them from entering the slag cavity 74 of the test piece, thereby reducing the impurity content of the test piece, improving the purity and performance of the test piece, and ensuring the equivalence of the test piece and the product.

[0076] Example 10

[0077] like Figure 2 and Figure 6 Based on Examples 1-9, the sample forming cavity 7 further includes two second vacuum channels 77. One end of each of the two second vacuum channels 77 is connected to a second active vacuum valve 76, and the other end is connected to the product cavity 5 of the two product flow channels respectively.

[0078] The beneficial effect of adopting the preferred solution in the above embodiments is that by connecting the two second air extraction channels 77, the gas in the two product chambers 5 is further extracted by the second active vacuum valve 76, avoiding the formation of defects such as pores and bubbles in the product, and improving the density and surface quality of the product.

[0079] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0080] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0081] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0082] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0083] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0084] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A casting system structure for a shock absorber tower die-casting mold, characterized in that, The system includes a cake chamber (1) and two product flow channels that are both connected to the cake chamber (1). Each product flow channel includes a main flow channel (2), two branch flow channels (3), eight secondary branch flow channels (4), and a product chamber (5). One end of each of the two main flow channels (2) is connected to the cake chamber (1). The two branch flow channels (3) are symmetrically arranged, and one end of each branch flow channel (3) is connected to the other end of the corresponding main flow channel (2). The eight secondary branch flow channels (4) are arranged at intervals, and one end of the first and eighth secondary branch flow channels (4) are respectively connected to the other end of the two branch flow channels (3). One end of the second to fourth sub-branch channel cavity (4) is connected to the side wall of one of the branch channel cavity (3), one end of the fifth to seventh sub-branch channel cavity (4) is connected to the side wall of another branch channel cavity (3), the other end of the eight sub-branch channel cavities (4) is connected to the product cavity (5), and the other end of each sub-branch channel cavity (4) connected to the corresponding product cavity (5) forms an ingate (41). The cross-sectional area of ​​the cake cavity (1) is S1, and the sum of the cross-sectional areas of the sixteen ingates (41) is equal to (1 / 11-1 / 9)*S1.

2. The casting system structure of the shock absorber tower die-casting mold according to claim 1, characterized in that, The cross-sectional area of ​​both main flow channels (2) is S2, and the cross-sectional area of ​​each branch flow channel (3) near the end of the corresponding main flow channel (2) is S3, and S 21 =2*(1.05-1.1)S3.

3. The casting system structure of a shock absorber tower die-casting mold according to claim 2, characterized in that, The sum of the cross-sectional areas of one end of the four sub-branch channels (4) that are connected to the same branch channel channel (3) is S4, and S3 = (1.05-1.1)S4.

4. The casting system structure of a shock absorber tower die-casting mold according to claim 2, characterized in that, The width and thickness of each branch flow channel cavity (3) decrease by 10% from one end to the other.

5. The casting system structure of a shock absorber tower die-casting mold according to claim 1, characterized in that, The eighth sub-branch channel cavity (4) of the two product flow channels is close to each other, and in each product flow channel cavity, the thickness of the third to sixth sub-branch channel cavity (4) is 10% thicker than the thickness of the remaining sub-branch channel cavities (4).

6. The casting system structure of a shock absorber tower die-casting mold according to claim 5, characterized in that, In each product runner cavity, the thickness of the ingate (41) of the third to sixth sub-runner cavities (4) is 10% thicker than the thickness of the ingate (41) of the remaining sub-runner cavities (4).

7. The casting system structure of a shock absorber tower die-casting mold according to any one of claims 1-6, characterized in that, Both product flow channels further include an exhaust assembly (6), and both exhaust assemblies (6) include a passive exhaust plate (61), a first active vacuum valve (62) connected to the passive exhaust plate (61), a product air passage (63) connected to the first active vacuum valve (62), and a plurality of product slag cavities (64) simultaneously connected to the product air passages (63). Each product slag cavity (64) is spaced apart and is connected to the product cavity (5).

8. The casting system structure of the shock absorber tower die-casting mold according to claim 7, characterized in that, The cross-sectional area of ​​one end of the product air passage (63) that connects to the product residue cavity (64) is S. 63 S 63 It is equal to (50%-55%) of the cross-sectional area of ​​the corresponding eight ingates (41).

9. The casting system structure of a shock absorber tower die-casting mold according to any one of claims 1-6, characterized in that, It also includes a sample forming cavity (7), which includes two sample branch flow channel cavities (71), a confluence cavity (72), and a sample cavity (73). One end of each of the two sample branch flow channel cavities (71) is connected to one of the two product flow channel cavities (3), and the other end is connected to one end of the confluence cavity (72). The sample cavity (73) is connected to the other end of the confluence cavity (72). The sample cavity (73) is also connected to a sample residue encapsulation cavity (74). The sample residue encapsulation cavity (74) is connected to a second active vacuum valve (76) through a first air extraction channel (75).

10. The casting system structure of a shock absorber tower die-casting mold according to claim 9, characterized in that, The sample forming cavity (7) also includes two second air extraction channels (77), one end of each of the two second air extraction channels (77) is connected to the second active vacuum valve (76), and the other end is connected to the product cavity (5) of the two product flow channel cavities respectively.

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