Aluminum alloy wheel hub die casting mold

Abstract

The utility model relates to die casting die technical field, concretely is aluminium alloy wheel hub die casting die, including fixed mould, assembly groove and heat conduction plate, the fixed mould upper end is provided with movable die, the fixed mould and movable die opposite side face all are established with assembly groove, the assembly groove inner wall screw has heat conduction plate, the heat conduction plate both sides outer wall all are established with liquid exchange hole, the heat conduction plate inside is established with first cooling runner, the liquid exchange hole inner wall one side is established with adjusting hole, the adjusting hole inside is provided with the plug, and the plug occurs transverse movement, can make second cooling runner controlled intercommunication, reached the purpose that the heat conduction plate cooling range was adjusted, ensured the cooling range of heat conduction plate to be able to adapt the die core.

Description

Technical Field

[0001] This utility model relates to the field of die-casting mold technology, specifically to aluminum alloy wheel hub die-casting mold. Background Technology

[0002] Aluminum alloy wheels refer to automobile wheel hubs made of aluminum alloy materials. The wheel hub is a cylindrical component that supports the tire and is centrally mounted on the axle. Aluminum alloy wheels are usually produced using a die-casting process. The die-casting mold typically consists of a fixed mold, a moving mold, a gating system, and a venting system. The opening and closing of the fixed mold and the moving mold allows the mold core to open and close, thus enabling the die-casting and venting of the molded part. The gating system is used to smoothly and quickly introduce molten aluminum alloy into the mold cavity, allowing the molten metal to fill the cavity evenly. The venting system is used to remove air and excess molten aluminum alloy from the mold cavity to improve the quality of the casting.

[0003] While existing die-casting molds offer numerous advantages during use, they still suffer from several drawbacks. Firstly, their control over the cooling range is insufficient. Secondly, existing molds require changing the mold core to accommodate different sizes of aluminum alloy wheels during die-casting. Thirdly, the fixed cooling channels of the mold cannot adequately adapt to the dimensions of the formed parts, resulting in inefficient cooling of the aluminum alloy wheels. Utility Model Content

[0004] To address the problems in the existing technology, this utility model provides an aluminum alloy wheel hub die-casting mold.

[0005] The technical solution adopted by this utility model to solve its technical problem is an aluminum alloy wheel hub die-casting mold, including a fixed mold, an assembly groove and a heat-conducting plate. A moving mold is provided at the upper end of the fixed mold. An assembly groove is provided on the opposite surfaces of the fixed mold and the moving mold. A heat-conducting plate is screwed to the inner wall of the assembly groove. Fluid exchange holes are symmetrically provided on both outer walls of the heat-conducting plate. A first cooling channel is provided inside the heat-conducting plate. An adjustment hole is provided on one side of the inner wall of the fluid exchange hole. A plug is provided inside the adjustment hole.

[0006] By adopting the above technical solution, the moving mold, in conjunction with the matching drive rod, can achieve movement. The movement of the moving mold relative to the fixed mold enables the mold to open and close. The heat-conducting plate directly contacts the mold cavity, which can quickly dissipate the heat during the solidification of the aluminum alloy liquid. The liquid exchange hole, adjustment hole, and first cooling channel can form a circulating flow trajectory of the cooling medium, achieving precise cooling of the mold core and ensuring the cooling efficiency of the molded parts inside the mold core. By adjusting the delivery pressure of the cooling medium, the plug can be pushed to move laterally, thereby enabling the second cooling channel to be connected in a controlled manner. This achieves the purpose of adjusting the cooling range of the heat-conducting plate, ensuring that the cooling range of the heat-conducting plate can adapt to the required cooling range of the mold core, and can well adapt to the size of the molded parts, thus improving the versatility of the equipment.

[0007] Specifically, the heat-conducting plate is screwed to the outside of the mold core, the outside of the mold core is provided with a flow divider cone, the upper outer wall of the moving mold is provided with a pouring gate, and the flow divider cone is located inside the flow divider cone.

[0008] By adopting the above technical solution, the outer side of the mold core is connected to the heat-conducting plate, so that the heat can be directly discharged through the heat-conducting plate, ensuring uniform mold core temperature. The flow divider inside the sprue can evenly disperse the aluminum alloy liquid into the mold cavity, reducing turbulence and air holes. At the same time, it guides the molten metal to preferentially fill complex structures such as wheel hub spokes and rims, ensuring the integrity of the filling. The molten metal in the matching gating system can flow into the mold core through the sprue.

[0009] Specifically, the assembly groove has connecting holes on both sides of its inner wall, which correspond to the positions of the liquid exchange holes. The outer walls of both the fixed mold and the moving mold are provided with liquid inlet pipe joints, and the fixed mold and the moving mold are provided with liquid outlet pipe joints on the sides opposite to the liquid inlet pipe joints. The liquid inlet pipe joints and the liquid outlet pipe joints are threaded into the connecting holes.

[0010] By adopting the above technical solution, the inlet pipe joint and the outlet pipe joint are respectively connected to the matching cooling medium circulation device, so that the cooling medium can flow through the connecting hole inside the heat exchange hole, ensuring the continuous flow of the cooling medium and maintaining a stable cooling efficiency. The connecting hole and the heat exchange hole are bonded and fixed with a sealing ring to ensure the flow sealing of the cooling medium.

[0011] Specifically, a second cooling channel is provided on both outer walls of the first cooling channel. A one-way valve is provided on the inner side of the second cooling channel facing the first cooling channel. The other end of the second cooling channel is connected to the inside of the adjustment hole.

[0012] By adopting the above technical solution, the first cooling channel and the second cooling channel form a multi-stage cooling system. The first cooling channel serves as the main passage, and the second cooling channel serves as the auxiliary passage, forming a cooling network that combines main and auxiliary channels. This expands the cooling coverage area, ensuring that the cooling coverage meets the cooling needs of the mold core. It can guarantee both cooling effect and cooling efficiency. The one-way valve restricts the unidirectional flow of the cooling medium inside the second cooling channel, preventing the cooling medium from flowing back into the second cooling channel when it is flowing inside the first cooling channel, thus ensuring the flow pressure of the cooling medium.

[0013] Specifically, a sealing ring is bonded and fixed to the outer wall of the plug, and the sealing ring is in contact with the inner wall of the adjustment hole.

[0014] By adopting the above technical solution, the sealing ring ensures the positional stability of the plug and the inside of the regulating hole, and ensures that the flow trajectory of the cooling medium inside the regulating hole is controlled.

[0015] Specifically, both sides of the fixed mold and the moving mold have assembly holes, which correspond to the positions of the adjustment holes. A sealing block is threaded to one side of the inner wall of the assembly hole. A spring seat is provided on the opposite side of the sealing block and the plug. A support spring is provided inside the spring seat. The plug is elastically connected to the sealing block through the support spring.

[0016] By adopting the above technical solution, the support spring is connected to the plug through the sealing block, and the position of the plug can be automatically adjusted according to the pressure of the cooling medium, reducing manual intervention. When the pressure of the cooling medium increases, the pressure pushes the plug to overcome the elasticity of the support spring and move laterally, so that the plug is released from the blockage of the second cooling channel. Thus, the cooling medium inside the regulating hole can flow into the second cooling channel, realizing the active adjustment of the cooling medium coverage area. During maintenance, the support spring, plug and the cooling medium inside can be cleaned and maintained by disassembling the sealing block.

[0017] Specifically, the moving mold is provided with guide pillars arranged in a rectangular array on its outer side, and the guide pillars are movably installed inside the fixed mold.

[0018] By adopting the above technical solution, when the moving mold and the fixed mold are closed, the guide post is inserted into the pre-set guide hole inside the fixed mold, which can accurately align the moving mold and the fixed mold in the vertical direction when they are closed, ensuring the accuracy of the mold closing position.

[0019] The beneficial effects of this utility model are:

[0020] The aluminum alloy wheel hub die-casting mold of this utility model has a plug that moves laterally, which enables the second cooling channel to be connected in a controlled manner, thereby achieving the purpose of adjusting the cooling range of the heat-conducting plate and ensuring that the cooling range of the heat-conducting plate can adapt to the mold core.

[0021] The aluminum alloy wheel hub die-casting mold of this utility model has a liquid exchange hole, an adjustment hole, and a first cooling channel that can form a circulating flow trajectory of the cooling medium, thereby achieving precise cooling of the mold core and ensuring the cooling efficiency of the molded parts inside the mold core. Attached Figure Description

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

[0023] Figure 1 This is a schematic diagram showing the disassembly of the fixed mold structure of this utility model;

[0024] Figure 2 This is a disassembly diagram of the moving mold structure of this utility model;

[0025] Figure 3 This is a cross-sectional schematic diagram of the heat-conducting plate structure of this utility model;

[0026] Figure 4 This is an enlarged schematic diagram of the plug structure of this utility model.

[0027] In the diagram: 1. Fixed mold; 11. Mold core; 12. Flow divider cone; 13. Moving mold; 14. Liquid inlet pipe connector; 15. Sprue; 16. Guide pillar; 17. Drain pipe connector; 2. Assembly slot; 21. Connecting hole; 22. Assembly hole; 23. Sealing block; 3. Heat-conducting plate; 31. First cooling channel; 32. Second cooling channel; 33. Liquid exchange hole; 34. Adjustment hole; 35. Plug; 36. Support spring; 37. Sealing ring. Detailed Implementation

[0028] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0029] To save manpower and improve efficiency, as one embodiment of this utility model, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the aluminum alloy wheel hub die-casting mold of this utility model includes a fixed mold 1, an assembly groove 2 and a heat-conducting plate 3. A moving mold 13 is provided at the upper end of the fixed mold 1. The fixed mold 1 and the moving mold 13 are provided with assembly grooves 2 on opposite sides. The heat-conducting plate 3 is screwed to the inner wall of the assembly groove 2. Fluid exchange holes 33 are symmetrically provided on both outer walls of the heat-conducting plate 3. A first cooling channel 31 is provided inside the heat-conducting plate 3. An adjustment hole 34 is provided on one side of the inner wall of the fluid exchange hole 33. A plug 35 is provided inside the adjustment hole 34.

[0030] In use, the moving mold 13, in conjunction with the matching drive rod, can move. The movement of the moving mold 13 relative to the fixed mold 1 enables the mold to open and close. The heat-conducting plate 3 directly contacts the mold cavity, which can quickly dissipate the heat during the solidification of the aluminum alloy liquid. The liquid exchange hole 33, the adjustment hole 34, and the first cooling channel 31 can form a circulating flow trajectory of the cooling medium, achieving precise cooling of the mold core 11 and ensuring the cooling efficiency of the molded parts inside the mold core 11. By adjusting the delivery pressure of the cooling medium, the plug 35 can be pushed to move laterally, thereby enabling the second cooling channel 32 to be connected in a controlled manner. This achieves the purpose of adjusting the cooling range of the heat-conducting plate 3, ensuring that the cooling range of the heat-conducting plate 3 can meet the cooling range requirements of the mold core 11, and can well adapt to the size of the molded parts, thus improving the versatility of the equipment.

[0031] For die casting, for example, such as Figure 1 As shown, the heat-conducting plate 3 is screwed to the outside of the mold core 11, and the outside of the mold core 11 is provided with a flow divider cone 12. The upper outer wall of the moving mold 13 is provided with a pouring gate 15, and the flow divider cone 12 is located inside the flow divider cone 12.

[0032] During use, the outer side of the mold core 11 is connected to the heat conduction plate 3, so that the heat is directly discharged through the heat conduction plate 3, ensuring that the temperature of the mold core 11 is uniform. The flow divider cone 12 inside the pouring port 15 can evenly disperse the aluminum alloy liquid into the mold cavity, reducing turbulence and air holes. At the same time, it guides the molten metal to preferentially fill complex structures such as wheel hub spokes and rims, ensuring the integrity of the filling. The molten metal in the matching gating system can flow into the mold core 11 through the pouring port 15.

[0033] For example, to allow liquid to enter or exit, such as... Figure 1 As shown, both sides of the inner wall of the assembly groove 2 are provided with connecting holes 21, which correspond to the positions of the liquid exchange holes 33. Both sides of the outer walls of the fixed mold 1 and the moving mold 13 are provided with liquid inlet pipe joints 14. Both the fixed mold 1 and the moving mold 13 are provided with liquid outlet pipe joints 17 on the side opposite to the liquid inlet pipe joints 14. The liquid inlet pipe joints 14 and the liquid outlet pipe joints 17 are respectively threaded into the inside of the connecting holes 21.

[0034] During use, the inlet pipe connector 14 and the outlet pipe connector 17 are respectively connected to the matching cooling medium circulation device, so that the cooling medium can flow through the connecting hole 21 inside the heat exchange hole, ensuring continuous flow of the cooling medium and maintaining stable cooling efficiency. The connecting hole 21 and the heat exchange hole are bonded and fixed with a sealing ring 37 to ensure the flow and sealing of the cooling medium.

[0035] To control the cooling range, for example, such as Figure 3As shown, a second cooling channel 32 is provided on both outer walls of the first cooling channel 31. A one-way valve is provided on the inner side of the second cooling channel 32 facing the first cooling channel 31. The other end of the second cooling channel 32 is connected to the inside of the regulating hole 34.

[0036] In use, the first cooling channel 31 and the second cooling channel 32 form a multi-stage cooling system. The first cooling channel 31 serves as the main passage, and the second cooling channel 32 serves as the auxiliary passage, forming a cooling network that combines the main and auxiliary channels. This expands the cooling coverage area and ensures that the cooling coverage meets the cooling requirements of the mold core 11. It can ensure both cooling effect and cooling efficiency. The one-way valve restricts the unidirectional flow of the cooling medium inside the second cooling channel 32, preventing the cooling medium from flowing back into the second cooling channel 32 when it flows inside the first cooling channel 31, thus ensuring the flow pressure of the cooling medium.

[0037] For sealing purposes, exemplarily, such as Figure 4 As shown, a sealing ring 37 is bonded and fixed to the outer wall of the plug 35, and the sealing ring 37 is in contact with the inner wall of the adjustment hole 34.

[0038] During use, the sealing ring 37 ensures the positional stability of the plug 35 and the inside of the regulating hole 34, and ensures that the flow trajectory of the cooling medium inside the regulating hole 34 is controlled.

[0039] To adjust the cooling range, for example, such as Figure 3 As shown, assembly holes 22 are provided on both sides of the outer wall of the fixed mold 1 and the moving mold 13. The assembly holes 22 are corresponding to the adjustment holes 34. A sealing block 23 is threadedly connected to one side of the inner wall of the assembly hole 22. A spring seat is provided on the opposite side of the sealing block 23 and the plug 35. A support spring 36 is provided inside the spring seat. The plug 35 is elastically connected to the sealing block 23 through the support spring 36.

[0040] During use, the support spring 36 is connected to the plug 35 via the sealing block 23. The position of the plug 35 can be automatically adjusted according to the cooling medium pressure, reducing manual intervention. When the cooling medium delivery pressure increases, the pressure pushes the plug 35 to overcome the elasticity of the support spring 36 and move laterally, so that the plug 35 is released from the blockage of the second cooling channel 32. Thus, the cooling medium inside the regulating hole 34 can flow into the second cooling channel 32, realizing the active adjustment of the cooling medium coverage area. During maintenance, the support spring 36, the plug 35 and the cooling medium therein can be cleaned and maintained by disassembling the sealing block 23.

[0041] To guide the movement trajectory, for example, such as Figure 2 As shown, the moving mold 13 is provided with guide pillars 16 arranged in a rectangular array on its outer side, and the guide pillars 16 are movably installed inside the fixed mold 1.

[0042] When in use, when the moving mold 13 and the fixed mold 1 are closed, the guide post 16 is inserted into the pre-set guide hole inside the fixed mold 1, which can accurately align the moving mold 13 and the fixed mold 1 in the vertical direction when they are closed, ensuring the accuracy of the mold closing position.

[0043] When this invention is in use, the drive system of the die-casting machine is started, and the drive rod begins to push the moving mold 13 towards the fixed mold 1. During the movement, the guide column 16 continuously plays an auxiliary role, guiding the moving mold 13 to move smoothly in the vertical direction until the fixed mold 1 and the moving mold 13 are completely in contact. At this time, the closed mold cavity, which is composed of the mold core 11, the flow divider cone 12 and the heat-conducting plate 3, is formed. The aluminum alloy liquid is injected into the mold cavity through the pouring port 15, and the flow divider cone 12 disperses and guides the aluminum alloy liquid, so that it evenly fills the complex structural areas such as the wheel hub spokes and rims.

[0044] When the external cooling medium circulation device is started, the cooling medium flows in through the liquid inlet pipe joint 14, enters the liquid exchange hole 33 through the connecting hole 21, and then circulates along the first cooling channel 31 inside the heat conduction plate 3, quickly carrying away the heat generated when the aluminum alloy liquid solidifies. At this time, the one-way valve can restrict the flow direction of the cooling medium inside the first cooling channel 31, preventing the cooling medium from entering the second cooling channel 32, thus ensuring the flow pressure and cooling efficiency of the cooling medium.

[0045] The pumping pressure of the circulation device on the cooling medium is adjusted according to the overall size of the model and the required cooling range. When the pressure increases, it will push the plug 35 to overcome the elastic force of the support spring 36 and make it move laterally, thereby connecting the adjustment hole 34 with the second cooling channel 32. At this time, the cooling medium can enter the second cooling channel 32 through the adjustment hole 34, forming a multi-level cooling network with the first cooling channel 31, which expands the cooling coverage area.

[0046] It should be noted that this utility model is an aluminum alloy wheel hub die-casting mold. All components in this utility model are known to those skilled in the art, and their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0047] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An aluminum alloy wheel hub die-casting mold, characterized in that, The assembly includes a fixed mold (1), an assembly slot (2), and a heat-conducting plate (3). A moving mold (13) is provided on the upper end of the fixed mold (1). An assembly slot (2) is provided on the opposite side of the fixed mold (1) and the moving mold (13). A heat-conducting plate (3) is screwed to the inner wall of the assembly slot (2). Fluid exchange holes (33) are symmetrically provided on both outer walls of the heat-conducting plate (3). A first cooling channel (31) is provided inside the heat-conducting plate (3). An adjustment hole (34) is provided on one side of the inner wall of the fluid exchange hole (33). A plug (35) is provided inside the adjustment hole (34).

2. The aluminum alloy wheel hub die-casting mold according to claim 1, characterized in that, The heat-conducting plate (3) is screwed to the outside of the mold core (11), and a flow divider cone (12) is provided on the outside of the mold core (11). The upper outer wall of the moving mold (13) is provided with a pouring gate (15), and the flow divider cone (12) is located inside the pouring gate (15).

3. The aluminum alloy wheel hub die-casting mold according to claim 1, characterized in that, The assembly groove (2) has connecting holes (21) on both sides of its inner wall. The connecting holes (21) correspond to the positions of the liquid exchange holes (33). The outer walls of both sides of the fixed mold (1) and the moving mold (13) are provided with liquid inlet pipe joints (14). The fixed mold (1) and the moving mold (13) are provided with liquid outlet pipe joints (17) on the side opposite to the liquid inlet pipe joints (14). The liquid inlet pipe joints (14) and the liquid outlet pipe joints (17) are threaded into the connecting holes (21).

4. The aluminum alloy wheel hub die-casting mold according to claim 1, characterized in that, The outer walls on both sides of the first cooling channel (31) are provided with a second cooling channel (32). The second cooling channel (32) is provided with a one-way valve facing the inside of the first cooling channel (31). The other end of the second cooling channel (32) is connected to the inside of the regulating hole (34).

5. The aluminum alloy wheel hub die-casting mold according to claim 1, characterized in that, A sealing ring (37) is bonded to the outer wall of the plug (35), and the sealing ring (37) is in contact with the inner wall of the adjustment hole (34).

6. The aluminum alloy wheel hub die-casting mold according to claim 1, characterized in that, Assembly holes (22) are provided on both sides of the outer walls of the fixed mold (1) and the moving mold (13). The assembly holes (22) are corresponding to the adjustment holes (34). A sealing block (23) is threadedly connected to one side of the inner wall of the assembly hole (22). A spring seat is provided on the opposite side of the sealing block (23) and the plug (35). A support spring (36) is provided inside the spring seat. The plug (35) is elastically connected to the sealing block (23) through the support spring (36).

7. The aluminum alloy wheel hub die-casting mold according to claim 1, characterized in that, The moving mold (13) is provided with guide pillars (16) arranged in a rectangular array on the outside, and the guide pillars (16) are movably installed inside the fixed mold (1).

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