Aluminum die-casting forming die

Abstract

The invention relates to an aluminum die-casting forming die which comprises a fixed die device and a movable die device, and the fixed die device and the movable die device are closed to form a forming cavity and a cavity runner. The forming cavity comprises a first area and a second area. The first area comprises a first space, a first annular groove and a plurality of reinforcing grooves. The second area comprises a second space, a second ring groove and a plurality of forming grooves; the cavity flow channel comprises a main flow channel, a plurality of injection channels and supplement flow channels distributed on the two sides of the main flow channel, the main flow channel extends to the two sides from the injection opening, and the injection channels correspond to the reinforcing grooves in a one-to-one mode. The supplementary flow channel comprises a first flow channel and a second flow channel, the first flow channel is communicated with the side direction of the first ring groove, and the second flow channel is communicated with the second area. The number of the injection channels is large, molten metal flows towards the direction of the second area without blocking through the reinforcing grooves, the first area and the second area can be rapidly filled with the molten metal, and the overall molten metal filling balance is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of molds, in particular to an aluminum die-casting mold. Background Art

[0002] In the die-casting process of some large-area thin-walled aluminum shells, the product area is large and the wall thickness in each area is small. For example, the existing large-sized aluminum alloy street lamp lampshades are different from conventional aluminum alloy castings. Lampshade products have the characteristics of thin walls, wide areas and reserved holes in the lateral molding structure.

[0003] One type of lampshade product includes a wiring area for wiring and a lighting area for lighting fixtures. These areas need to be separated and molded, yet still integrated and coordinated. For example, Publication No. CN219541668U provides a venting structure for an aluminum die-casting mold for a streetlight lampshade. Publication No. CN210412470U also provides a mold for a high-heat-dissipating streetlight lampshade.

[0004] The aforementioned street lamp shade is a small-sized shade that can be molded using conventional aluminum die-casting. This method utilizes a small number of large injection openings, a narrow metal injection range, and a short molding time. However, molding a large, thin-walled lampshade requires not only a long flow channel, but also the metal injection method and flow path, which both affect the final molding quality. Conventional injection channels with large openings also suffer from technical issues such as uneven flow and uncontrollable flow area balance, thus requiring improvement. Summary of the Invention

[0005] In order to overcome the problems existing in the related art, an embodiment of the present invention provides an aluminum die-casting mold to solve the technical problems of uneven flow and unstable molding in the die-casting processing of large-area lampshades.

[0006] According to a first aspect of an embodiment of the present invention, an aluminum die-casting mold is provided, the mold comprising a fixed mold device and a movable mold device, wherein the fixed mold device and the movable mold device are combined to form a molding cavity and a mold cavity flow channel, wherein the molding cavity comprises a first area and a second area: The first zone includes a first space, an annular first ring groove, and a plurality of reinforcing grooves spaced apart and arranged in parallel, wherein the reinforcing grooves face the second zone and intersect the first ring groove at both ends. The second zone includes a second space, a second annular groove and a plurality of forming grooves, and the ends of the forming grooves intersect with the second annular groove; The cavity flow channel includes a main flow channel, a plurality of injection channels and supplementary flow channels distributed on both sides of the main flow channel, the main flow channel extends from the injection port to both sides, and the injection channels correspond to the reinforcement grooves one by one; The supplementary flow channel includes a first flow channel and a second flow channel, the first flow channel is connected to the side of the first annular groove, and the second flow channel is connected to the second area.

[0007] In one embodiment, the cross-sectional width of the injection channel gradually decreases from the main flow channel toward the reinforcement groove.

[0008] In one embodiment, the first area and the second area have a plurality of communicating auxiliary flow channels.

[0009] In one embodiment, the supplementary flow channel further includes a third flow channel, and the third flow channel is connected to the intersection of the first area and the second area.

[0010] In one embodiment, the second flow channel and the third flow channel are provided in the fixed mold device, and the main flow channel and the first flow channel are provided in the movable mold device.

[0011] In one embodiment, the movable mold device includes a movable mold core assembly, and the movable mold core assembly includes a main core seat and an auxiliary core seat embedded in the main core seat, the auxiliary core seat corresponds to the second area, and the main core seat corresponds to the first area.

[0012] In one embodiment, the movable mold device is provided with an auxiliary heating mechanism, and the auxiliary heating mechanism heats the second zone.

[0013] In one embodiment, the auxiliary heating mechanism includes a plurality of mold temperature flow channels extending deep into the auxiliary core seat.

[0014] In one embodiment, the width dimension of the first zone is B, 600 mm ≤ B ≤ 900 mm, and the length dimensions of the first zone and the second zone are L, 400 mm ≤ L ≤ 800 mm.

[0015] In one embodiment, the mold further comprises an ejection mechanism installed on the movable mold device, wherein the ejection mechanism comprises a plurality of first ejector pins located in the first area and a plurality of second ejector pins located in the second area; In the area between the two reinforcement grooves, the first ejector pins are distributed in two rows with staggered spacing, and the first ejector pins in the first area are distributed symmetrically.

[0016] The technical solution provided by the embodiment of the present invention may include the following beneficial effects: the first zone and the second zone are two parallel intersecting molding areas, the first annular groove and the second annular groove are arranged at intervals, and the first zone and the second zone are separated and molded independently, which can correspond to the circuit area and the lighting area of the molded lampshade. The mold cavity flow channel is injected into the first zone through the first annular groove and the reinforcement groove, and the injection channel corresponds to the reinforcement groove one by one. There are many injection channels and the molten metal flows unobstructed toward the second zone through the reinforcement groove. The molten metal can quickly fill the first zone and the second zone and improve the balance of the overall molten metal filling. The supplementary flow channel can further supplement the first zone and the second zone from the side, thereby improving the filling efficiency of the first space and the second space. In addition, the supplementary flow channels are distributed on both sides of the molding cavity, which can keep the temperature around the molding area stable and maintain the fluidity of the molten metal in the large-area molding cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0018] Figure 1 The figure is a schematic structural diagram of an aluminum die-casting mold according to an embodiment.

[0019] Figure 2 The figure shows a cross-sectional structure diagram of an aluminum die-casting mold according to one embodiment.

[0020] Figure 3 FIG1 is a schematic front view of a movable mold device according to one embodiment.

[0021] Figure 4 yes Figure 3 Enlarged schematic diagram of point A in the middle.

[0022] Figure 5 FIG. 1 is an exploded schematic diagram illustrating a movable mold core assembly according to one embodiment.

[0023] Figure 6 The figure is a schematic diagram showing the arrangement of a mold temperature flow channel on an auxiliary core holder according to one embodiment.

[0024] Figure 7 FIG. 1 is a schematic diagram illustrating a fixed mold device according to an embodiment.

[0025] In the figure, there are shown the fixed mold device 10; the fixed mold core assembly 11; the fixed mold seat 12; the injection port 13; the movable mold device 20; the movable mold core assembly 21; the main core seat 211; the auxiliary core seat 212; the cooling channel 213; the accommodating groove 214; the small hole portion 2141; the large hole portion 2142; the mold temperature flow channel 215; the molding surface 216; the ejection mechanism 22; the first ejector pin 221; the second ejector pin 222; the third ejector pin 223; the molding cavity 30; the first zone 31; the reinforcement groove 311; the first annular groove 312; the second zone 32; the second annular groove 321; the molding groove 322; the auxiliary flow groove 33; the lateral molding slider mechanism 40; the cavity flow channel 50; the main flow channel 51; the supplementary flow channel 52; the first flow channel 521; the second flow channel 522; the third flow channel 523; the injection channel 53; the wide mouth portion 531; and the tapered mouth portion 532. DETAILED DESCRIPTION

[0026] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inside", "outside" and the like indicate directions or positional relationships, they are based on the directions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0027] like Figures 1 to 4 As shown, the present invention provides an aluminum die-casting mold, which includes a fixed mold assembly 10 and a movable mold assembly 20. The fixed mold assembly 10 includes a fixed mold base 12 and a fixed mold core assembly 11 mounted on the fixed mold base 12. The movable mold assembly 20 is provided with a movable mold core assembly 21. The space formed by the fixed mold core assembly 11 and the movable mold core assembly 21 is a molding cavity 30 and a cavity flow channel 50. The fixed mold assembly 10 is provided with an injection port 13, which is connected to the cavity flow channel 50.

[0028] The molding cavity 30 includes a first region 31 and a second region 32. The first region 31 is located between the cavity runner 50 and the second region 32. The cavity runner 50, the first region 31, and the second region 32 are arranged in this order. The cavity runner 50 is connected to the injection port 13, allowing molten metal to flow along the cavity runner 50 to fill the molding cavity 30.

[0029] The first region 31 includes a first space, an annular first annular groove 312, and multiple parallel and spaced reinforcement grooves 311. The reinforcement grooves 311 face toward the second region 32 and intersect with the first annular groove 312 at both ends. The first annular groove 312 is an annular structure, and the reinforcement grooves 311 are located within the annular region of the first annular groove 312. The reinforcement grooves 311 connect to the first annular groove 312 to form a reinforcement structure.

[0030] Two adjacent reinforcement grooves 311 are arranged in parallel, and the reinforcement grooves 311 are parallel groove structures, and the reinforcement grooves 311 extend toward the second area 32. The reinforcement grooves 311 are heat dissipation ribs or reinforcement ribs of the shell part.

[0031] An elongated molding surface 216 is formed between two adjacent reinforcement grooves 311 . The aluminum die-casting mold further includes an ejector mechanism 22 mounted on the movable mold device 20 . The ejector mechanism 22 includes a plurality of ejector pins that are telescopically movable on the molding surface 216 .

[0032] The second region 32 is adjacent to the first region 31 and includes a second space, a second annular groove 321, and multiple molding grooves 322. The ends of the molding grooves 322 intersect with the second annular grooves 321. The second space and the first space are continuous, forming a single housing structure. Optionally, the surface of the first space is flush with the surface of the second space, forming a flat housing structure. Alternatively, the surface of the first space is offset from the surface of the second space, forming a stepped housing structure.

[0033] The molding groove 322 is located within the area surrounding the second annular groove 321. It comprises a grid-like structure of intersecting grooves in both the horizontal and vertical directions, with both ends extending into the second annular groove 321. The first and second regions 31 and 32 are two parallel, intersecting molding areas. The first annular groove 312 and the second annular groove 321 are spaced apart, allowing for separate molding of the first and second regions 31 and 32, corresponding to the wiring and lighting areas of the lampshade.

[0034] The cavity runner 50 includes a main channel 51, a plurality of injection channels 53 and supplementary runners 52 distributed on both sides of the main channel 51. The main channel 51 extends from the injection port 13 to both sides, and the injection channels 53 correspond one-to-one to the reinforcement groove 311. The main channel 51 has a symmetrically distributed runner structure, wherein the cross-sectional width of the main channel 51 gradually decreases from the injection port 13 to both sides, and the injection channels 53 are formed in a partially concave shape along one side of the main channel 51. The position of each injection channel 53 corresponds one-to-one to the reinforcement groove 311. It is worth mentioning that it is not used in the existing injection channel 53. The existing injection channel 53 has a large bottom width and depth, and the depth dimension and opening dimension of the intersection with the cavity part gradually decrease. In this embodiment, the injection channel 53 is a vertical channel, and the cross-sectional width of the injection channel 53 is basically the same as the cross-sectional dimension of the downward depression from the molding surface 216 to match the groove structure of the reinforcement groove 311.

[0035] The injection channel 53 of the vertical channel structure is aligned with the reinforcement groove 311. The molten metal injected into the injection channel 53 can flow directly along the reinforcement groove 311. The reinforcement groove 311 constitutes an extended channel directly reaching the second area 32, thereby reducing the flow resistance of the molten metal. Moreover, the injection channel 53 and the reinforcement groove 311 match and correspond to each other, which can expand the flow area of the molten metal and reduce the molding defects of the reinforcement groove 311.

[0036] The cavity runner 50 is injected into the first area 31 through the first annular groove 312 and the reinforcement groove 311. Moreover, the injection channels 53 correspond one-to-one with the reinforcement groove 311. There are many injection channels 53 and the molten metal flows unimpeded toward the second area 32 through the reinforcement groove 311. The molten metal can quickly fill the first area 31 and the second area 32, and improve the balance of the overall molten metal filling.

[0037] The supplemental flow channel 52 includes a first flow channel 521 and a second flow channel 522. The first flow channel 521 connects to the side of the first annular groove 312, while the second flow channel 522 connects to the second section 32. The supplemental flow channel 52 bends at both ends of the main flow channel 51 to form a curved flow channel. The first flow channel 521 connects to the middle area of the side of the first section 31, while the second flow channel 522 connects to the middle area of the side of the second section 32.

[0038] The supplementary flow channel 52 can further supplement the first area 31 and the second area 32 from the side, thereby improving the filling efficiency of the first space and the second space. In addition, the supplementary flow channel 52 is distributed on both sides of the forming cavity 30, which can maintain a stable temperature around the forming area and maintain the fluidity of the molten metal within the large area of the forming cavity 30.

[0039] like Figures 2 to 4As shown, the injection channel 53 is a trumpet-mouth structure with a concave structure, and the cross-sectional dimensions of the injection channel 53 perpendicular to the concave direction are basically the same. Accordingly, the injection channel 53 and the reinforcement groove 311 are aligned and have the same height, reducing the flow resistance of the molten metal.

[0040] Furthermore, the cross-sectional width of the injection channel 53 gradually decreases from the main flow channel 51 toward the reinforcement groove 311 to maintain the flow efficiency and continuity of the injected molten metal, and to keep the flow rate and pressure of the injected molten metal in the injection channel 53 stable.

[0041] In an optional embodiment, the injection channel 53 includes a wide mouth portion 531 and a tapered mouth portion 532. The wide mouth portion 531 intersects with the main channel 51, and the tapered mouth portion 532 gradually decreases from the wide mouth portion 531 toward the reinforcement groove 311 to form a tapered hole injection shape. Multiple injection channels 53 arranged in parallel form multiple tapered hole injection shapes, which can improve the flow efficiency of the molten metal.

[0042] The number of the injection channels 53 is substantially the same as the number of the reinforcement grooves 311 , and they are symmetrically distributed with the injection port 13 as the center, so as to achieve balanced flow of various molten metals.

[0043] The first annular groove 312 and the second annular groove 321 are two annular groove structures spaced apart from each other, with a partition wall between the first annular groove 312 and the second annular groove 321. The first area 31 and the second area 32 are connected through the first space and the second space.

[0044] In one embodiment, the first zone 31 and the second zone 32 have a plurality of auxiliary flow grooves 33 connected to each other. The number of auxiliary flow grooves 33 is less than the number of reinforcement grooves 311. Preferably, the auxiliary flow grooves 33 connect the first annular groove 312 and the second annular groove 321, thereby increasing the connection area between the first zone 31 and the second zone 32. Preferably, the auxiliary flow grooves 33 are located in the extension direction of part of the reinforcement grooves 311 to reduce the partial flow resistance of the molten metal. Furthermore, four auxiliary flow grooves 33 are provided, and the four auxiliary flow grooves 33 are centrally spaced. The other reinforcement grooves 311 flow through the first zone 31 and guide part of the molten metal to converge toward the center of the other side of the first annular groove 312 and enter the second zone 32, thereby changing the flow direction and circulation pressure of the molten metal, achieving flow path adjustment, filling pressure adjustment, and filling direction adjustment between the first zone 31 and the second zone 32, and improving the overall filling quality.

[0045] like Figure 4 and Figure 7As shown, to further increase the filling speed of the molten metal in the first and second zones 31, 32, the supplementary flow channel 52 further includes a third flow channel 523, which is connected to the intersection of the first and second zones 31, 32. The third flow channel 523 is part of the supplementary flow channel 52 and can replenish the molten metal in the intersection of the first and second zones 31, 32, thereby allowing the molten metal to quickly fill the first and second spaces.

[0046] In a preferred embodiment, the second and third runners 522 and 523 are disposed in the fixed mold assembly 10, while the main runner 51 and first runner 521 are disposed in the movable mold assembly 20. The second and third runners 522 and 523 are formed by recessing from the surface of the fixed mold core assembly 11, while the main runner 51 and first runner 521 are formed by recessing from the surface of the mold core assembly 21. When the fixed and movable mold core assemblies 11 and 21 are closed, the first, second, and third runners 521, 522, and 523 form a continuous supplemental runner 52. The supplemental runners 52, disposed separately in the fixed and movable mold core assemblies 11 and 21, adjust the flow path of the molten metal and the heat distribution in the mold, thereby improving overall molding quality.

[0047] like Figures 4 to 6 As shown, preferably, the movable core assembly 21 includes a main core holder 211 and an auxiliary core holder 212 embedded in the main core holder 211. The auxiliary core holder 212 corresponds to the second region 32, and the main core holder 211 corresponds to the first region 31. The main core holder 211 is provided with a concave receiving groove 214, and the auxiliary core holder 212 is embedded in the receiving groove 214, thereby forming the second region 32 in combination with the groove wall of the receiving groove 214. The main core holder 211 and the auxiliary core holder 212 are assembled and connected, and the auxiliary core holder 212 can be changed in style and shape to achieve second regions 32 with different shapes and structures.

[0048] Optionally, the wall of the receiving groove 214 is stepped, the auxiliary core holder 212 is fixedly engaged with the small hole portion 2141 of the receiving groove 214, and the space between the auxiliary core holder 212 and the large hole portion 2142 of the receiving groove 214 forms a second annular groove 321. The molding space shape is controllable and the assembly precision is high.

[0049] More importantly, the auxiliary core holder 212 is independently provided and can adapt to different heating methods and slag and exhaust methods to further improve the molding quality.

[0050] The auxiliary core holder 212 is independently provided and is located at the distal end of the injection port 13 where the molten metal is injected. Due to the long flow path required for the molten metal, the molten metal temperature is easily reduced, affecting the fluidity of the molten metal in the second zone 32. Preferably, the movable mold device 20 is provided with an auxiliary heating mechanism to heat the second zone 32.

[0051] The auxiliary heating mechanism independently heats the second zone 32 to increase its temperature. Furthermore, the auxiliary heating mechanism heats the auxiliary core holder 212, thereby providing localized heating. Preferably, a thermal insulation layer is provided between the auxiliary core holder 212 and the receiving groove 214 to reduce the impact of the auxiliary heating mechanism on the temperature of the main core holder 211, thereby improving the thermal energy utilization of the auxiliary core holder 212 and maintaining a controllable temperature.

[0052] Therefore, the separate arrangement of the auxiliary core holder 212 and the main core holder 211 can also realize independent heating of the auxiliary core holder 212. Optionally, the auxiliary heating mechanism can adopt heating wire heating, mold temperature controller heating, heating fluid flow heating and other mold heating methods.

[0053] Preferably, the auxiliary heating mechanism includes multiple mold temperature channels 215 extending deep into the auxiliary core holder 212. These channels 215 are spaced apart and connected to a mold temperature controller, thereby controlling the temperature of the auxiliary core holder 212 and minimizing the impact on the temperature of the main core holder 211. Specifically, the channels 215 are arranged in two rows, each containing at least three channels 215. These two rows of channels 215 are staggered to maintain temperature uniformity across the auxiliary core holder 212.

[0054] Further preferably, the two rows of mold temperature channels 215 are close to the second annular groove 321 to reduce the influence of the temperature difference between the auxiliary core seat 212 and the main core seat 211 on the fluidity of the molten metal.

[0055] The auxiliary core holder 212 and the main core holder 211 are separately arranged. The aluminum die-casting mold is provided with a cooling mechanism on the movable mold assembly 20. The cooling mechanism is distributed in the lower space of the first zone 31 and the second zone 32, thereby reducing the temperature of the molten metal in the first zone 31 and the second zone 32, thereby shortening the molding time. Optionally, the cooling mechanism includes a plurality of cooling channels 213 provided on the movable mold assembly 20. The cooling channels 213 are staggered and connected to a cooling device. The fluid flows within the cooling channels 213 to achieve temperature control.

[0056] In one embodiment, the width of the first region 31 is B, 600mm ≤ B ≤ 900mm, and the length of the first region 31 and the second region 32 is L, 400mm ≤ L ≤ 800mm. The molding cavity 30 provides a large molding space to accommodate large, thin-walled lampshade housing products. The width of the first region 31 and the width of the second region 32 are substantially the same, thereby forming a thin-walled lampshade housing that is approximately rectangular. For example, the width and length dimensions are set as follows: 600mm*400mm, 650mm*450mm, 650mm*500mm, 700mm*500mm, 800mm*550mm, 900mm*600mm, and 900mm*800mm.

[0057] Since the thin-walled lampshade shell has a large overall area and a thin wall thickness, it needs to be ejected by the ejection mechanism 22 after the molten metal is cooled and formed. During the process of leaving the molding cavity 30, the aluminum casting is easily deformed by the ejection force of the ejection mechanism 22, especially for large-area aluminum castings.

[0058] like Figures 1 to 4 As shown, in one embodiment, the ejection mechanism 22 includes a plurality of first ejector pins 221 located in the first region 31 and a plurality of second ejector pins 222 located in the second region 32. In the region between the two reinforcement grooves 311, the first ejector pins 221 are arranged in two rows with staggered spacing, and the first ejector pins 221 in the first region 31 are symmetrically distributed.

[0059] The first ejector pin 221 can abut against the housing portion of the first area 31 , and the second ejector pin 222 can abut against the housing portion of the second area 32 . Furthermore, the ejection mechanism 22 includes a plurality of third ejector pins 223 abutting against the cavity flow channel 50 .

[0060] The ejection mechanism 22 needs to be adaptively designed based on product characteristics to improve the product's ejection qualification rate. In this embodiment, the top surfaces of the first ejector pins 221 are located on the molding surfaces 216 corresponding to two adjacent reinforcement grooves 311. Furthermore, the two rows of first ejector pins 221 are staggered, meaning that the two rows of first ejector pins 221 are not aligned in a straight line in a transverse direction perpendicular to the reinforcement grooves 311.

[0061] The two rows of first ejector pins 221 are staggered and arranged to form a grid-like, multi-point support structure, significantly increasing the effective support area. Furthermore, the two rows of first ejector pins 221 are located close to the reinforcement grooves 311 on either side of the forming surface 216, facilitating the ejection of the corresponding reinforcement ribs. The staggered arrangement of the two rows of first ejector pins 221 prevents concentrated ejection force, significantly improving ejection stability and minimizing deformation.

[0062] The second ejector pins 222 eject the aluminum die-cast shell portion corresponding to the second area 32 , wherein the second ejector pins 222 are distributed in multiple rows at intervals, wherein the second ejector pins 222 are distributed at the molding grooves 322 , and at least some of the second ejector pins 222 are located at the intersection of the molding grooves 322 to form multiple rows of ejection.

[0063] The first ejector pin 221 and the second ejector pin 222 are ejected synchronously to improve the ejection force consistency of the thin-walled lampshade shell.

[0064] In one embodiment, the aluminum die-casting mold further includes at least one lateral forming slider mechanism 40, which is located in the second region 32. The lateral forming slider mechanism 40 is slidably disposed in the second region 32 to form lateral holes or shapes in the second region 32, for example, forming features such as threading holes for a thin-walled lampshade housing on the side of the second region 32.

[0065] Optionally, the lateral forming slider mechanism 40 includes a forming block and a driving member connected to the forming block, the driving member drives the forming block to telescopically move, wherein the forming block extends into the second annular groove 321 and abuts against the side of the auxiliary core seat 212 to form a lateral forming hole space.

[0066] It should be understood that the present application is not limited to the precise structure described above and shown in the accompanying drawings, and that various modifications and variations may be made without departing from the scope thereof. This application is intended to cover any variations, uses, or adaptations of the present invention that follow the general principles of this application and include common knowledge or customary techniques in the art that are not disclosed herein.

Claims

1. An aluminum die-casting mold, comprising a fixed mold assembly and a movable mold assembly, wherein the fixed mold assembly and the movable mold assembly are combined to form a molding cavity and a mold cavity flow channel, characterized in that: The molding cavity includes a first area and a second area: The first zone includes a first space, an annular first ring groove, and a plurality of reinforcing grooves spaced apart and arranged in parallel, wherein the reinforcing grooves face the second zone and intersect the first ring groove at both ends. The second zone includes a second space, a second annular groove and a plurality of forming grooves, and the ends of the forming grooves intersect with the second annular groove; The cavity flow channel includes a main flow channel, a plurality of injection channels and supplementary flow channels distributed on both sides of the main flow channel, the main flow channel extends from the injection port to both sides, and the injection channels correspond to the reinforcement grooves one by one; The supplementary flow channel includes a first flow channel and a second flow channel, the first flow channel is connected to the side of the first annular groove, and the second flow channel is connected to the second area.

2. The aluminum die-casting mold according to claim 1, characterized in that: The cross-sectional width of the injection channel gradually decreases from the main flow channel to the reinforcement groove.

3. The aluminum die-casting mold according to claim 1, characterized in that: The first area and the second area have a plurality of auxiliary flow channels connected to each other.

4. The aluminum die-casting mold according to claim 1, characterized in that: The supplementary flow channel further includes a third flow channel connected to the intersection of the first area and the second area.

5. The aluminum die-casting mold according to claim 4, characterized in that: The second flow channel and the third flow channel are arranged on the fixed mold device, and the main flow channel and the first flow channel are arranged on the movable mold device.

6. The aluminum die-casting mold according to claim 1, characterized in that: The movable mold device includes a movable mold core assembly, and the movable mold core assembly includes a main core seat and an auxiliary core seat embedded and installed in the main core seat. The auxiliary core seat corresponds to the second area, and the main core seat corresponds to the first area.

7. The aluminum die-casting mold according to claim 6, characterized in that: The movable mold device is provided with an auxiliary heating mechanism, and the auxiliary heating mechanism heats the second zone.

8. The aluminum die-casting mold according to claim 7, characterized in that: The auxiliary heating mechanism includes a plurality of mold temperature flow channels extending deep into the auxiliary core seat.

9. The aluminum die-casting mold according to claim 1, characterized in that: The width dimension of the first zone is B, 600mm≤B≤900mm, and the length dimensions of the first zone and the second zone are L, 400mm≤L≤800mm.

10. The aluminum die-casting mold according to claim 1, characterized in that: Also included is an ejection mechanism installed on the movable mold device, the ejection mechanism including a plurality of first ejector pins located in the first area and a plurality of second ejector pins located in the second area; In the area between the two reinforcement grooves, the first ejector pins are distributed in two rows with staggered spacing, and the first ejector pins in the first area are distributed symmetrically.

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