A low-pressure casting mold flow divider cone structure

Abstract

This utility model relates to the field of low-pressure casting mold technology for aluminum alloy wheel hubs, and discloses a flow divider cone structure for a low-pressure casting mold. The structure includes a flow divider cone body with two inclined cooling water channels inside. One end of each channel extends to the top of the flow divider cone body, penetrating the outer wall, while the other end converges and connects in the lower central area of ​​the flow divider cone body, forming a "V"-shaped water channel structure. An inlet pipe and an outlet pipe are welded to connect the two cooling water channels. This utility model eliminates the traditional water distributor structure, directly integrating and connecting the cooling water channels with the flow divider cone body as the core. This improves the stability and sealing of the connection, reduces the risk of leakage, and extends the service life of the mold. Simultaneously, it eliminates additional parts such as the water distributor, copper gasket, water distributor lock nut, and water distributor connector, simplifying the overall structure and reducing the cost of parts procurement, processing, and assembly. It is applicable to various low-pressure casting aluminum alloy wheel hub molds.

Description

Technical Field

[0001] This utility model relates to the field of low-pressure casting mold technology for aluminum alloy wheel hubs, and in particular to a flow divider cone structure for low-pressure casting molds. Background Technology

[0002] In the low-pressure casting process of aluminum alloy wheels, the flow divider cone, as the upper mold, is a key component, primarily responsible for cooling the riser and diverting the flow, directly affecting the wheel forming quality and production efficiency. (See attached...) Figure 1 As shown, the flow divider cone is typically connected to the cooling water pipe via a distributor, with the distributor and flow divider cone connected by threads and sealed using a copper gasket. However, this structure has significant drawbacks: firstly, under the long-term high-temperature and high-pressure casting environment, the threaded connection is prone to copper gasket seal failure due to vibration and thermal expansion and contraction, leading to water leakage. This not only affects the cooling effect but may also damage the mold, scrap the product, and increase production and maintenance costs. Secondly, the distributor requires additional parts such as distributor lock nuts and distributor connectors, which not only increases the cost of parts procurement and assembly but also increases the processing difficulty and production cycle due to the complex structure.

[0003] Therefore, there is an urgent need for a new type of flow divider cone that can solve the leakage problem, simplify the structure to reduce costs, and at the same time ensure the cooling effect, so as to meet the actual needs of low-pressure casting process. Utility Model Content

[0004] The purpose of this utility model is to provide a flow divider cone structure for low-pressure casting molds to address the above-mentioned problems, thereby solving the problems of complex flow divider cone structures, poor stability in use, and high manufacturing and maintenance costs in existing low-pressure casting molds.

[0005] The technical solution adopted in this utility model is as follows: A low-pressure casting mold diversion cone structure includes a diversion cone body. The diversion cone body has two inclined cooling water channels inside. One end of each cooling water channel extends to the top of the diversion cone body and penetrates the outer wall. The other ends of the two cooling water channels converge and connect in the lower central area of ​​the diversion cone body to form a "V" shaped water channel structure. The inlet pipe and outlet pipe are welded to connect the two cooling water channels.

[0006] Preferably, the included angle between the two cooling channels can be set to 8°-22° depending on the size of the splitter cone and the cooling requirements.

[0007] Preferably, the diameter of the drill hole for the cooling water channel is 6-12 mm.

[0008] Preferably, the welding points of the inlet pipe, outlet pipe and the diversion cone body are provided with annular reinforcing ribs, and the annular reinforcing ribs are welded to the diversion cone body, the inlet pipe and the outlet pipe.

[0009] Preferably, the inner wall of the cooling water channel is provided with turbulence protrusions, which are distributed in a spiral shape along the water flow direction. The beneficial effects of this utility model are as follows: This utility model eliminates the traditional water distributor and threaded connection structure, adopting a connection method where the inlet pipe, outlet pipe, and the diversion cone body are directly welded together. This improves the sealing performance and structural stability of the connection, avoids the leakage risk caused by the failure of the copper gasket seal in traditional threaded connections, reduces the risk of mold damage and product scrap due to leakage, and extends the service life of the mold. It eliminates additional parts such as the water distributor, copper gasket, water distributor lock nut, and water distributor connector, simplifying the overall structure and reducing the cost of parts procurement, processing, and assembly. Simultaneously, the V-shaped cooling water channel is formed by directly drilling holes in the diversion cone body, simplifying the processing technology, reducing manufacturing difficulty and production cycle, and comprehensively saving costs. The V-shaped water channel structure increases the heat exchange contact area between the cooling water and the diversion cone body; the 8°-22° angle design ensures smooth water flow and avoids uneven cooling; 6-12mm The aperture ensures both water flow rate and body strength; the spiral turbulent ridges on the inner wall of the waterway create turbulent flow of cooling water, enhancing heat exchange efficiency and further improving the cooling rate of critical areas of the riser. Attached Figure Description

[0010] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0011] Figure 1 This is a schematic diagram of an existing flow divider cone.

[0012] Figure 2-3 This is a schematic diagram of the structure of this utility model.

[0013] In the diagram: 10--Flow divider cone body; 11--Cooling water channel; 12--Inlet pipe; 13--Outlet pipe; 14--Annular reinforcing rib; 15--Turbulence protrusion. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0015] like Figure 2-3As shown, a low-pressure casting mold flow divider cone structure includes a flow divider cone body 10. Two inclined cooling water channels 11 are formed inside the flow divider cone body 10. One end of each cooling water channel 11 extends to the top of the flow divider cone body 10 and penetrates the outer wall. The other ends of the two cooling water channels 11 converge and connect in the lower central area of ​​the flow divider cone body 10, forming a "V"-shaped water channel structure. An inlet pipe 12 and an outlet pipe 13 are welded to connect the two cooling water channels 11. In use, cooling water enters one of the cooling water channels 11 through the inlet pipe 12 and exits through the other cooling water channel 11, thereby cooling the flow divider cone body 10.

[0016] This embodiment eliminates the traditional water distributor structure and the threaded connection relying on copper gaskets for sealing, directly integrating and connecting the cooling water channels 11 with the flow divider cone body 10 as the core. This significantly improves the stability and sealing of the connection, reduces the risk of leakage, and thus lowers the risk of mold damage and product scrap caused by leakage, extending the service life of the mold. At the same time, it eliminates additional parts such as the water distributor, copper gasket, water distributor lock nut, and water distributor connector, simplifying the overall structure and reducing the cost of parts procurement, processing, and assembly. Furthermore, the flow divider cone body 10 uses a drilling process to form the V-shaped cooling water channels 11, which is simple in structure and easy to process, further reducing the manufacturing difficulty and production cycle.

[0017] Preferably, the included angle between the two cooling water channels 11 can be set to 8°-22° according to the size of the split cone and the cooling requirements. More preferably, it is 12-15°. This angle range can ensure the smooth transition of cooling water flow in the confluence area, avoid uneven cooling caused by local eddies, and ensure the uniform distribution of cooling water channels 11 inside the split cone body 10, thereby improving the cooling coverage of the riser area.

[0018] Preferably, the diameter of the drill hole in the cooling water channel 11 is 6-12mm. This size range can ensure the cooling water flow rate and meet the cooling efficiency while avoiding a decrease in the structural strength of the diverter cone body 10 due to excessively large hole diameter.

[0019] Preferably, the welding points of the inlet pipe 12, the outlet pipe 13 and the diversion cone body 10 are provided with annular reinforcing ribs 14. The annular reinforcing ribs 14 are welded to the diversion cone body 10, the inlet pipe 12 and the outlet pipe 13, which not only enhances the connection strength between the joint and the body, but also further prevents possible minor leakage and improves the long-term stability of the structure.

[0020] Preferably, such as Figure 3As shown, the inner wall of the cooling water channel 11 is provided with turbulent ridges 15, which are spirally distributed along the water flow direction. This causes the cooling water to form turbulence within the cooling water channel 11, enhancing the heat exchange efficiency with the channel wall and increasing the cooling rate of the critical area of ​​the riser. The above-disclosed embodiments are merely specific examples of this utility model, but this utility model is not limited thereto. For those skilled in the art, any modifications made without departing from the principle of this utility model should be considered as protected by this utility model.

Claims

1. A low pressure casting die diverging cone structure, characterized by: The device includes a flow divider cone body (10), which has two inclined cooling water channels (11) inside. One end of each cooling water channel (11) extends to the top of the flow divider cone body (10) and penetrates the outer wall. The other ends of the two cooling water channels (11) converge and connect in the lower central area of ​​the flow divider cone body (10) to form a "V" shaped water channel structure. The inlet pipe (12) and outlet pipe (13) are welded to connect the two cooling water channels (11).

2. A low pressure casting die divergent cone structure according to claim 1, wherein: The included angle between the two cooling water channels (11) is 8°-22°.

3. A low pressure casting die divergent cone structure according to claim 1, wherein: The diameter of the borehole in the cooling water channel (11) is 6-12 mm.

4. A low pressure casting die divergent cone structure according to claim 1, wherein: The inlet pipe (12), outlet pipe (13) and the diversion cone body (10) are provided with annular reinforcing ribs (14), and the annular reinforcing ribs (14) are welded to the diversion cone body (10), inlet pipe (12) and outlet pipe (13).

5. The flow divider cone structure for a low-pressure casting mold according to claim 1, characterized in that: The inner wall of the cooling water channel (11) is provided with turbulence protrusions (15), which are spirally distributed along the water flow direction.

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