Integrated semi-solid magnesium alloy high-pressure casting mold for new energy automobile

Abstract

The utility model belongs to the technical field of automobile part casting molds, and provides an integrated semi-solid magnesium alloy high-pressure casting mold for a new energy automobile, which comprises a movable mold assembly, a fixed mold assembly, a sliding block mechanism, a sealing assembly, an exhaust assembly and a pouring system, the sealing assembly is arranged between the movable mold assembly and the fixed mold assembly, a sealing cavity is formed between the movable mold assembly and the fixed mold assembly, a product cavity is further formed between the movable mold assembly and the fixed mold assembly, and the product cavity comprises three cavities used for forming a first main body part, a second main body part and a third main body part respectively; the sliding block mechanism is arranged on the movable mold assembly; the exhaust assembly comprises an exhaust part; the pouring system comprises a pouring gate. Compared with the prior art, the pouring gates are asymmetrically distributed along the product cavity, semi-solid magnesium alloy slurry can be guided to be filled in a stable laminar flow state, air entrapment, turbulent flow and impact are reduced, the defects of cold shut and shrinkage porosity of products are reduced, and the forming precision and mechanical property of the integrated vehicle-mounted decoration plate are improved.

Description

Technical Field

[0001] This utility model belongs to the field of automotive parts casting mold technology, specifically relating to an integrated semi-solid magnesium alloy high-pressure casting mold for new energy vehicles. Background Technology

[0002] New energy vehicle interior trim panels are mostly integrated long strip structures, usually consisting of multiple main body sections arranged in sequence. They have a large overall size span and high requirements for structural continuity. Currently, they are mostly made of aluminum alloy die casting or ordinary injection molding, which have problems such as excessive weight, insufficient strength, and low molding precision.

[0003] Semi-solid magnesium alloys have advantages such as low density, high specific strength, and good molding fluidity, making them suitable for the lightweight requirements of new energy vehicles. However, when used for die casting of integrated long strip automotive trim panels, conventional high-pressure casting molds have obvious defects: First, the gating system is mostly symmetrically laid out, and the flow rate of the semi-solid slurry is uneven, which easily leads to defects such as air entrapment, cold shuts, and shrinkage porosity. The density and mechanical properties of the product are difficult to meet the assembly requirements of automotive trim panels. Second, the venting of the corresponding areas of the cavity segments is mismatched, and the gas at the end of the slurry filling cannot be discharged in time, forming pores and surface defects. Third, the sealing effect of the parting surface is poor, and it is difficult to establish stable vacuum-assisted molding, affecting the internal quality of the product. Fourth, the connection position of the multi-segment main body is prone to filling lag and dimensional deviation, and the forming area of ​​the slider is prone to flash and scratches.

[0004] Furthermore, the existing mold gate cross-section and spacing design are unreasonable, making it difficult for the slurry to maintain a laminar flow filling state, exacerbating internal defects in the product; the venting structure is mostly a straight-through type, which cannot effectively prevent molten metal splashing, leading to blockage of the venting channel and an increased product scrap rate; the sealing components have insufficient high-temperature resistance and compression capacity, resulting in seal failure and a decrease in vacuum after long-term use. In summary, the existing mold structure is difficult to adapt to the high-pressure casting requirements of integrated semi-solid magnesium alloy automotive trim panels, and there is still considerable room for improvement.

[0005] Therefore, it is necessary to provide an integrated semi-solid magnesium alloy high-pressure casting mold for new energy vehicles to solve the above-mentioned technical problems. Utility Model Content

[0006] The purpose of this utility model is to provide an integrated semi-solid magnesium alloy high-pressure casting mold for new energy vehicles, so as to solve the problems of uneven slurry filling, poor venting, poor sealing effect, and unstable vacuum degree in the die casting process of integrated semi-solid magnesium alloy vehicle trim panels, which lead to defects such as porosity, cold shut, shrinkage porosity, and dimensional deviation in the product, and thus cannot meet the requirements of lightweight and high-precision assembly of new energy vehicles.

[0007] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: an integrated semi-solid magnesium alloy high-pressure casting mold for new energy vehicles is proposed, comprising: a mold for forming vehicle trim panels, wherein the vehicle trim panels include a first main body, a second main body, and a third main body arranged in sequence, and the mold includes: a moving mold assembly, a fixed mold assembly, a slider mechanism, a sealing assembly, an venting assembly, and a gating system;

[0008] The sealing assembly is disposed between the moving mold assembly and the fixed mold assembly, and forms a sealing cavity between them. A product cavity located within the sealing cavity is also formed between the moving mold assembly and the fixed mold assembly. The product cavity includes three chambers that are sequentially connected and are respectively used to form the first main body, the second main body, and the third main body.

[0009] The slider mechanism is mounted on the moving mold assembly and is located on one side of the cavity corresponding to the first main body.

[0010] The exhaust assembly includes exhaust components corresponding to the three chambers and the slider mechanism;

[0011] The gating system includes gating gates corresponding to the three chambers; wherein...

[0012] Each of the aforementioned venting components is located within the sealed cavity, and each of the aforementioned cavities corresponds to at least one of the aforementioned gates and at least one of the aforementioned venting components; the gates of the gating system are asymmetrically distributed along the product cavity to guide the semi-solid magnesium alloy slurry to fill in a laminar flow manner; the venting component corresponding to each of the aforementioned cavities corresponds at least to the last arrival position of the material inlet of each of the aforementioned cavities.

[0013] In the aforementioned integrated semi-solid magnesium alloy high-pressure casting mold for new energy vehicles, the gating system includes: two first gates corresponding to the chamber corresponding to the second main body, one second gate corresponding to the chamber corresponding to the first main body, and one third gate corresponding to the chamber corresponding to the third main body; and the two first gates are respectively close to the chamber corresponding to the first main body and the chamber corresponding to the third main body, forming an asymmetrical feeding layout.

[0014] In the aforementioned integrated semi-solid magnesium alloy high-pressure casting mold for new energy vehicles, the cross-sectional areas of the two first gates are different. The cross-sectional area of ​​the first gate near the first main body is 1.2-1.5 times that of the first gate near the third main body.

[0015] In the aforementioned integrated semi-solid magnesium alloy high-pressure casting mold for new energy vehicles, the center line connecting each of the gates does not pass through the geometric center of the product cavity, and the difference in gate spacing between two adjacent cavities is 10%-20% of the total transverse length of the vehicle trim panel.

[0016] In the aforementioned integrated semi-solid magnesium alloy high-pressure casting mold for new energy vehicles, the exhaust component consists of exhaust zones respectively disposed on the moving mold assembly and the fixed mold assembly and corresponding to each other. Each exhaust zone has multiple protrusions distributed at intervals, and the protrusions on the moving mold assembly and the protrusions on the fixed mold assembly are arranged in a cross pattern to form a barrier exhaust structure.

[0017] In the aforementioned integrated semi-solid magnesium alloy high-pressure casting mold for new energy vehicles, the exhaust assembly further includes a vacuum valve disposed outside the fixed mold assembly or the moving mold assembly, and the vacuum valve is connected to the exhaust component through an exhaust channel.

[0018] In the aforementioned integrated semi-solid magnesium alloy high-pressure casting mold for new energy vehicles, the sealing component includes an annular sealing groove disposed on the parting surface of the moving mold component or the fixed mold component. The annular sealing groove penetrates the coverage area of ​​the slider mechanism, and a sealing ring is disposed within the annular sealing groove. When the moving mold component and the fixed mold component are pressed together, the sealing ring is compressed and fills the annular sealing groove.

[0019] In the aforementioned integrated semi-solid magnesium alloy high-pressure casting mold for new energy vehicles, the position of the venting component is set according to the last arrival position of the corresponding chamber feed, and the distance between the center of the venting component and the nearest gate center is 30%-50% of the longitudinal length of the chamber.

[0020] In the aforementioned integrated semi-solid magnesium alloy high-pressure casting mold for new energy vehicles, the sealing ring is made of high-temperature resistant fluororubber, with a rectangular cross-section and a side length 0.2-0.5 mm longer than the depth of the annular sealing groove, ensuring an effective seal is formed when the moving mold assembly and the fixed mold assembly are pressed together.

[0021] In the aforementioned integrated semi-solid magnesium alloy high-pressure casting mold for new energy vehicles, the slider mechanism includes a slider body and a hydraulic cylinder. The slider body has a contoured boss on one side that fits into the cavity corresponding to the first main body. The hydraulic cylinder is connected to the slider body and is used to drive the slider body to slide along the moving mold assembly.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] (1) The gate is asymmetrically distributed along the product cavity, which can guide the semi-solid magnesium alloy slurry to fill in a stable laminar flow state, reduce air entrapment, turbulence and impact, reduce product cold shut and shrinkage defects, and improve the molding accuracy and mechanical properties of integrated vehicle trim panels.

[0024] (2) Each chamber is independently equipped with a gate and an exhaust device. The exhaust device corresponds to the last position of the slurry, realizing segmented and precise exhaust. With the help of the sealing chamber and vacuum valve, the gas in the mold cavity can be quickly discharged, significantly reducing the porosity and surface defects of the product.

[0025] (3) The sealing component runs through the slider mechanism area. The high-temperature resistant sealing ring has a reasonable compression amount and forms a complete sealing cavity when the mold is closed, ensuring stable and reliable vacuum-assisted molding and improving the density of the product.

[0026] (4) The slider mechanism is equipped with a contour boss to accurately form the side structure of the first main body. The asymmetrical gate is combined with the differentiated cross section design to make the filling rhythm of the three chambers coordinated and consistent, avoiding forming defects at the connection position. Attached Figure Description

[0027] Figure 1 It is a flat view of the vehicle's interior trim panel.

[0028] Figure 2 This is a perspective view of an integrated semi-solid magnesium alloy high-pressure casting mold for new energy vehicles according to this utility model.

[0029] Figure 3 yes Figure 2 A 3D view omitting the fixed mold components.

[0030] Figure 4 yes Figure 3 A magnified view of a portion of point A in the middle.

[0031] Figure 5 This is a plan view of the moving mold assembly.

[0032] Figure 6 This is a plan view of the fixed mold assembly.

[0033] In the figure, 10 is the vehicle trim panel; 11 is the first main body; 12 is the second main body; 13 is the third main body; 100 is the moving mold assembly; 200 is the fixed mold assembly; 300 is the slider mechanism; 310 is the slider body; 320 is the hydraulic cylinder; 400 is the sealing assembly; 410 is the annular sealing groove; 420 is the sealing ring; 500 is the venting assembly; 510 is the venting area; 511 is the protrusion; 520 is the vacuum valve; 600 is the gating system; 610 is the first gate; 620 is the second gate; and 630 is the third gate. Detailed Implementation

[0034] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0035] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indicator will also change accordingly.

[0036] like Figures 1 to 6 As shown, an integrated semi-solid magnesium alloy high-pressure casting mold for new energy vehicles is used to form a vehicle trim panel 10. The vehicle trim panel 10 includes a first main body 11, a second main body 12 and a third main body 13 arranged in sequence. The mold includes a moving mold assembly 100, a fixed mold assembly 200, a slider mechanism 300, a sealing assembly 400, an venting assembly 500 and a gating system 600.

[0037] A sealing component 400 is disposed between the moving mold component 100 and the fixed mold component 200. In the mold-closed state, it forms a sealed cavity between the mating surfaces of the two components. After the moving mold component 100 and the fixed mold component 200 are closed, a product cavity is formed inside the sealed cavity. The product cavity includes three chambers connected in sequence. The three chambers correspond to the first main body 11, the second main body 12, and the third main body 13 of the molded vehicle trim panel 10, respectively. The three chambers are continuously connected to achieve integrated molding of the vehicle trim panel 10. This configuration enables one-time die casting of the product, eliminating subsequent assembly and splicing processes, and effectively improving production efficiency and the overall structural strength of the product.

[0038] The slider mechanism 300 is assembled on the moving mold assembly 100 and is located on one side of the corresponding cavity of the first main body 11. It is used to form the irregular structure and assembly features on the side of the first main body 11 to avoid interference when the product is demolded.

[0039] This arrangement ensures the precision of the slider and cavity fit, stabilizes the molding of complex side structures, reduces the probability of demolding damage and flash, and improves the product's appearance quality and assembly dimensional accuracy.

[0040] The exhaust assembly 500 includes exhaust components corresponding to the three chambers and the slider mechanism 300, respectively. All exhaust components are arranged inside the sealed cavity to maintain the stability of the cavity vacuum environment.

[0041] Each chamber is equipped with at least one gate and at least one vent. The gate is used for injecting semi-solid magnesium alloy slurry, and the vent is used to expel residual gas from the chamber.

[0042] The gating system 600 has gates that are asymmetrically distributed along the product cavity, allowing the semi-solid magnesium alloy slurry to fill the cavity smoothly in a laminar flow state. The exhaust device corresponding to each cavity is arranged at least at the last arrival position of the material in that cavity, so as to achieve efficient gas discharge at the end of the cavity.

[0043] Independent venting in different zones can prevent gas from interfering with each other in different chambers, quickly vent the gas inside the cavity, and significantly reduce internal defects such as porosity and shrinkage in the product.

[0044] The gating system 600 includes two first gates 610 corresponding to the second main body 12 chamber, a second gate 620 corresponding to the first main body 11 chamber, and a third gate 630 corresponding to the third main body 13 chamber. The two first gates 610 are respectively close to the first main body 11 chamber and the third main body 13 chamber, forming an asymmetrical feeding layout.

[0045] Asymmetric multi-gate zone feeding can shorten the slurry flow path, balance the filling rhythm of the three chambers, and reduce temperature decay and cold shut defects caused by long-distance flow.

[0046] The two first gates 610 have different cross-sectional areas. The cross-sectional area of ​​the first gate 610 near the first main body 11 is 1.2-1.5 times that of the first gate 610 near the third main body 13. By adjusting the slurry flow rate and flow rate through the difference in cross-sectional size, the second main body 12 is filled evenly and smoothly connected with the adjacent chambers.

[0047] Differentiated cross-section design can precisely control the filling speed of each area, eliminate the discontinuity and confluence traces at the junction of the three main sections, and improve the consistency of product appearance and structural continuity.

[0048] When the gates are asymmetrically distributed along the product cavity, the center line connecting each gate does not pass through the geometric center of the product cavity, and the difference in the gate spacing between two adjacent cavities is 10%-20% of the total transverse length of the vehicle trim panel 10, thus optimizing the slurry filling path and maintaining laminar filling stability.

[0049] This spacing setting can prevent the slurry from colliding and forming turbulence, ensuring a smooth and orderly filling process and reducing defects such as air entrapment and inclusions.

[0050] The venting components are venting areas 510 respectively provided on the moving mold assembly 100 and the fixed mold assembly 200 and corresponding to each other. Each venting area 510 has multiple protrusions 511 distributed at intervals. The protrusions 511 on the moving mold assembly 100 and the protrusions 511 on the fixed mold assembly 200 are arranged in a cross pattern to form a barrier-type venting structure.

[0051] The cross-barrier structure can effectively block molten metal from entering the exhaust channel while ensuring smooth gas discharge, preventing channel blockage and product flash, and reducing the frequency of mold cleaning and product scrap rate.

[0052] The venting assembly 500 also includes a vacuum valve 520 disposed outside the fixed mold assembly 200 or the moving mold assembly 100, and the vacuum valve 520 is connected to the venting component through the venting channel.

[0053] After mold closing, vacuum valve 520 is activated, which can quickly extract the gas in the sealed cavity and mold cavity, establish a stable vacuum environment, improve the filling density of semi-solid magnesium alloy slurry, and improve the internal quality and mechanical properties of the product.

[0054] The sealing assembly 400 includes an annular sealing groove 410 disposed on the parting surface of the moving mold assembly 100 or the fixed mold assembly 200. The annular sealing groove 410 penetrates the coverage area of ​​the slider mechanism 300, and a sealing ring 420 is disposed in the annular sealing groove 410. When the moving mold assembly 100 and the fixed mold assembly 200 are pressed together, the sealing ring 420 is compressed and fills the annular sealing groove 410 to form a complete sealing structure.

[0055] The annular sealing groove 410 runs through and covers the entire slider area, eliminating sealing breaks at the slider position, ensuring the reliability of the sealing around the entire cavity, and providing stable sealing conditions for vacuum die casting.

[0056] The sealing ring 420 is made of high-temperature resistant fluororubber with a rectangular cross-section. The side length is 0.2-0.5 mm longer than the depth of the annular sealing groove 410, ensuring that the sealing ring 420 generates appropriate compression when the moving mold assembly 100 and the fixed mold assembly 200 are pressed together, thus forming an effective seal. This material and dimensional design ensures stable sealing of the sealing ring 420 under high-temperature and high-pressure conditions, resulting in a long service life and reduced mold maintenance costs.

[0057] The position of the vent is set according to the final arrival position of the material in the corresponding cavity, and the distance between the center of the vent and the center of the nearest gate is 30%-50% of the longitudinal length of the cavity. This ensures that the gas can be discharged in time when the slurry fills to the end of the cavity, eliminating dead zones where gas can stagnate. Precise positioning of the vent allows the gas to be discharged synchronously with the slurry, minimizing the occurrence of porosity defects and improving the quality of product molding.

[0058] The slider mechanism 300 includes a slider body 310 and a hydraulic cylinder 320. The slider body 310 has a contoured boss on one side that fits into the cavity corresponding to the first main body 11. The hydraulic cylinder 320 is connected to the slider body 310 and is used to drive the slider body 310 to slide along the set direction of the moving mold assembly 100.

[0059] The contour-following boss can precisely match the cavity contour, stably forming the side structure of the product. The 320 hydraulic cylinder drive ensures smooth slider movement and accurate positioning, balancing the forming of complex structures with smooth demolding, and improving the stability of the production process.

[0060] In actual operation, the moving mold assembly 100 and the fixed mold assembly 200 close together, the sealing assembly 400 forms a sealed cavity, and the vacuum valve 520 is activated to extract air from the sealed cavity and the mold cavity.

[0061] Semi-solid magnesium alloy slurry is smoothly filled into three chambers in a laminar flow state through asymmetrically arranged gates. During the filling process, gas is continuously discharged from the corresponding exhaust device. The slider mechanism 300 simultaneously completes the side structure forming of the first main body 11.

[0062] After filling, the mold is held under pressure and cooled. When the mold is opened, the slider mechanism 300 exits first, and then the product is ejected from the mold, finally obtaining an integrated vehicle trim panel 10 with high molding precision and few internal defects, which meets the requirements of lightweight and high-performance assembly for new energy vehicles.

[0063] In addition, the mold in this solution also includes an ejection mechanism for the vehicle trim panel 10; the gating system 600 includes a runner connecting the main runner and each gate, and a sprue bushing (gate bushing) disposed within the fixed mold assembly 200 and having the main runner. Since the above structures are all conventional technologies in the art, they will not be described in detail here.

[0064] It should be noted that in this utility model, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly defined. The terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two elements or the interaction between two elements, unless otherwise explicitly defined. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0065] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0066] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. An integrated semi-solid magnesium alloy high-pressure casting mold for new energy vehicles, used for molding vehicle trim panels, the vehicle trim panels comprising a first main body, a second main body, and a third main body arranged sequentially, characterized in that, The mold includes: a moving mold assembly, a fixed mold assembly, a slider mechanism, a sealing assembly, a venting assembly, and a gating system; The sealing assembly is disposed between the moving mold assembly and the fixed mold assembly, and forms a sealing cavity between them. A product cavity located within the sealing cavity is also formed between the moving mold assembly and the fixed mold assembly. The product cavity includes three chambers that are sequentially connected and are respectively used to form the first main body, the second main body, and the third main body. The slider mechanism is mounted on the moving mold assembly and is located on one side of the cavity corresponding to the first main body. The exhaust assembly includes exhaust components corresponding to the three chambers and the slider mechanism; The gating system includes gating gates corresponding to the three chambers; wherein... Each of the aforementioned venting components is located within the sealed cavity, and each of the aforementioned cavities corresponds to at least one of the aforementioned gates and at least one of the aforementioned venting components; the gates of the gating system are asymmetrically distributed along the product cavity to guide the semi-solid magnesium alloy slurry to fill in a laminar flow manner; the venting component corresponding to each of the aforementioned cavities corresponds at least to the last arrival position of the material inlet of each of the aforementioned cavities.

2. The integrated semi-solid magnesium alloy high-pressure casting mold for new energy vehicles as described in claim 1, characterized in that, The gating system includes: two first gates corresponding to the chambers of the second main body, a second gate corresponding to the chambers of the first main body, and a third gate corresponding to the chambers of the third main body; and the two first gates are respectively close to the chambers of the first main body and the chambers of the third main body, forming an asymmetrical feeding layout.

3. The integrated semi-solid magnesium alloy high-pressure casting mold for new energy vehicles as described in claim 2, characterized in that, The two first gates have different cross-sectional areas. The first gate closest to the chamber corresponding to the first main body has a cross-sectional area that is 1.2 to 1.5 times that of the first gate closest to the chamber corresponding to the third main body.

4. The integrated semi-solid magnesium alloy high-pressure casting mold for new energy vehicles as described in claim 1, characterized in that, The center line connecting the gates does not pass through the geometric center of the product cavity, and the difference in gate spacing between two adjacent cavities is 10%-20% of the total transverse length of the vehicle trim panel.

5. The integrated semi-solid magnesium alloy high-pressure casting mold for new energy vehicles as described in claim 1, characterized in that, The venting components are venting areas respectively disposed on the moving mold assembly and the fixed mold assembly and corresponding to each other. Each venting area has multiple protrusions distributed at intervals, and the protrusions on the moving mold assembly and the protrusions on the fixed mold assembly are arranged in a cross pattern to form a barrier-type venting structure.

6. The integrated semi-solid magnesium alloy high-pressure casting mold for new energy vehicles as described in claim 1, characterized in that, The exhaust assembly also includes a vacuum valve disposed outside the fixed mold assembly or the moving mold assembly, and the vacuum valve is connected to the exhaust component through an exhaust channel.

7. The integrated semi-solid magnesium alloy high-pressure casting mold for new energy vehicles as described in claim 1, characterized in that, The sealing assembly includes an annular sealing groove disposed on the parting surface of the moving mold assembly or the fixed mold assembly. The annular sealing groove penetrates the coverage area of ​​the slider mechanism, and a sealing ring is disposed within the annular sealing groove. When the moving mold assembly and the fixed mold assembly are pressed together, the sealing ring is compressed and fills the annular sealing groove.

8. The integrated semi-solid magnesium alloy high-pressure casting mold for new energy vehicles as described in claim 1, characterized in that, The position of the vent is set according to the last arrival position of the corresponding chamber feed, and the distance between the center of the vent and the nearest gate center is 30%-50% of the longitudinal length of the chamber.

9. The integrated semi-solid magnesium alloy high-pressure casting mold for new energy vehicles as described in claim 7, characterized in that, The sealing ring is made of high-temperature resistant fluororubber and has a rectangular cross-section. The side length is 0.2-0.5 mm longer than the depth of the annular sealing groove to ensure an effective seal when the moving mold assembly and the fixed mold assembly are pressed together.

10. The integrated semi-solid magnesium alloy high-pressure casting mold for new energy vehicles as described in claim 1, characterized in that, The slider mechanism includes a slider body and a hydraulic cylinder. The slider body has a contoured boss on one side that fits into the cavity corresponding to the first main body. The hydraulic cylinder is connected to the slider body and is used to drive the slider body to slide along the moving mold assembly.

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