Motorcycle hub casting rapid cooling mold

Abstract

The utility model discloses a motorcycle wheel hub casting rapid cooling mould which comprises a wheel hub casting mould, a rapid cooling mechanism is installed on the outer side of the wheel hub casting mould, the rapid cooling mechanism comprises a spray cooling assembly A covering one side of the wheel hub casting mould, one side of the spray cooling assembly A is connected with a spray cooling assembly B, and the other side of the spray cooling assembly B is connected with a cooling mechanism. A spray cooling assembly D is mounted on the other side of the spray cooling assembly B, and a spray cooling assembly C is arranged between the spray cooling assembly D and the spray cooling assembly B. According to the rapid cooling mold for casting the motorcycle hub, the spray cooling assembly A, the spray cooling assembly B, the spray cooling assembly C and the spray cooling assembly D are installed above the four sets of side faces of the hub casting mold correspondingly, so that the purpose of conducting dead-angle-free water cooling heat dissipation on the just-formed high-temperature hub is achieved, and the situation that the mold temperature in the heat dissipation dead-angle area is too high is avoided; therefore, the molten metal in the area is low in solidification speed, and shrinkage cavities, shrinkage porosity, bubbles and the like are easy to appear.

Description

Technical Field

[0001] This utility model relates to the field of casting molds, specifically a rapid cooling mold for casting motorcycle wheel hubs. Background Technology

[0002] A casting mold is a tool that shapes a blank into a casting. Casting molds are essential key equipment in casting production, used in every stroke of the equipment, and play a crucial role in casting production. Currently, automotive aluminum wheel casting molds all use open-type air cooling. While this can dissipate some heat, the cooling air in open-type air cooling systems tends to scatter, affecting the internal structure of other local areas (X-ray casting internal structure), resulting in poor overall mold temperature control, low yield rate in quality control, low recycling rate of compressed air energy, wasted costs, significant environmental noise impact, and poor directional solidification of castings. Therefore, improvements are needed.

[0003] To solve the above problems, after searching, Chinese Patent No. CN213856954U was found, which discloses a circulating air cooling mold for casting wheel hubs. The mold body includes a mold body and a cooling system. The mold body includes a side wall and a lower end with a channel hole. The cooling system includes an air inlet pipe, a first cooling channel, a second cooling channel, a first connecting pipe and several air outlet pipes connected in sequence. The first cooling channel and the second cooling channel are both located in the side wall.

[0004] Although the above-mentioned device has a high yield rate in quality control, high energy efficiency, and low impact on environmental noise, effectively improving the production environment, in actual use, the air-cooled heat dissipation method causes airflow to impact the outside of the casting mold, which can easily create heat dissipation dead zones. The mold temperature in the heat dissipation dead zone area is too high, resulting in a slow solidification rate of the molten metal in that area, which can easily lead to defects such as shrinkage cavities, shrinkage porosity (internal holes), and bubbles. Utility Model Content

[0005] The purpose of this invention is to provide a rapid cooling mold for casting motorcycle wheel hubs, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, a rapid cooling mold for motorcycle wheel hub casting is provided, comprising a wheel hub casting mold, a rapid cooling mechanism installed on the outer side of the wheel hub casting mold, and the rapid cooling mechanism including a spray cooling component A covering one side of the wheel hub casting mold, a spray cooling component B connected to one side of the spray cooling component A, and a spray cooling component D installed on the other side of the spray cooling component A, while a spray cooling component C is disposed between the spray cooling component D and the spray cooling component B.

[0007] Furthermore, the rapid cooling mechanism also includes a medium pipe and a connecting clamp. The medium pipe is square and has a cooling medium inlet pipe installed at its top. The connecting clamp is fixedly wrapped around the outside of the spray cooling components A, B, C and D.

[0008] Furthermore, the connecting hoop is square, and two sets of connecting hoops are arranged in parallel; the four sets of spray cooling components are connected by the two sets of connecting hoops to form an integrated spray device.

[0009] Furthermore, the spray cooling components A, B, C, and D are distributed in a positive direction, and are respectively installed above the four sides of the wheel hub casting mold, with a mold core provided on the surface of the wheel hub casting mold.

[0010] Furthermore, the four sets of spray cooling components have the same structure. The spray cooling component A includes a fixed base, a pressurizing pipe A, a pressurizing pipe B, a fixing clip, a receiving pipe, a docking post, and a positioning base. The fixed base is L-shaped and has a docking post fixedly installed at its bottom. At the same time, the end of the docking post away from the fixed base is connected to the positioning base.

[0011] Furthermore, the positioning seat is inserted into the positioning groove opened at the bottom of the wheel hub casting mold and fixed by countersunk holes and bolts, and both it and the positioning groove are fan-shaped.

[0012] Furthermore, a receiving tube is fixedly installed on the inner side of the middle part of the fixed base, and the cross-section of the receiving tube is semi-circular. At the same time, multiple sets of pressurizing tubes A and B, which are equally distributed, are fixedly installed on both sides of the receiving tube.

[0013] Furthermore, the multiple sets of pressurizing pipes A and B are fixed on the inner wall of the fixing base by two sets of fixing clips, and multiple sets of atomizing nozzles are installed equidistantly on both pressurizing pipes A and B.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: the coolant enters the interior of the medium pipe and is sprayed out through multiple sets of downward-sloping atomizing nozzles on the booster pipe A and booster pipe B, so as to carry out all-round water cooling of the wheel hub on the wheel hub casting mold. Since the spray cooling components A, B, C and D are respectively installed on the four sides of the wheel hub casting mold, the purpose of water cooling and heat dissipation of the high temperature wheel hub after it is formed is achieved without dead angles, avoiding the mold temperature in the heat dissipation dead angle area is too high, which will cause the metal liquid in that area to solidify slowly and easily produce defects such as shrinkage cavities, shrinkage porosity and bubbles. Attached Figure Description

[0015] Figure 1This is a front view schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a side view of the structure of this utility model;

[0017] Figure 3 This is a bottom view of the structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the rapid cooling mechanism of this utility model.

[0019] Figure 5 This is a cross-sectional view of the rapid cooling mechanism of this utility model.

[0020] The following are the labeling elements in the diagram: 100, wheel hub casting mold; 11, mold core; 12, positioning groove; 200, rapid cooling mechanism; 21, spray cooling component A; 211, fixing seat; 212, pressurizing pipe A; 213, pressurizing pipe B; 214, fixing clip; 215, receiving pipe; 216, docking post; 217, positioning seat; 22, spray cooling component B; 23, spray cooling component C; 24, spray cooling component D; 25, medium pipe; 26, connecting clamp. Detailed Implementation

[0021] Please see Figure 1-5 This utility model provides a rapid cooling mold for casting motorcycle wheel hubs, including a wheel hub casting mold 100. A rapid cooling mechanism 200 is installed on the outside of the wheel hub casting mold 100. The rapid cooling mechanism 200 includes a spray cooling component A21 covering one side of the wheel hub casting mold 100. A spray cooling component B22 is connected to one side of the spray cooling component A21, and a spray cooling component D24 is installed on the other side. A spray cooling component C23 is disposed between the spray cooling component D24 and the spray cooling component B22.

[0022] Working principle: When the wheel casting mold 100 is demolded, and the wheel on the wheel casting mold 100 needs to be cooled, the coolant enters the interior of the medium pipe 25 and then enters the pressurization pipes A212 and B213 inside the spray cooling components A21, B22, C23, and D24 respectively. The coolant is then sprayed out through multiple sets of downward-sloping atomizing nozzles on the pressurization pipes A212 and B213, providing comprehensive water cooling for the wheel on the wheel casting mold 100. Since the spray cooling components A21, B22, C23, and D24 are installed above the four sides of the wheel casting mold 100, they achieve comprehensive water cooling of the newly formed high-temperature wheel, preventing excessively high mold temperatures in heat dissipation dead zones, which can lead to slow solidification of the molten metal in those areas and defects such as shrinkage cavities, porosity, and bubbles.

[0023] In a preferred embodiment, the rapid cooling mechanism 200 also includes a medium pipe 25 and a connecting clamp 26. The medium pipe 25 is square and a cooling medium inlet pipe is installed on its top. The connecting clamp 26 is fixedly wrapped around the outside of the spray cooling assembly A21, spray cooling assembly B22, spray cooling assembly C23 and spray cooling assembly D24.

[0024] The connecting clamp 26 is square, and two sets of connecting clamps 26 are arranged in parallel; the four sets of spray cooling components are connected by two sets of connecting clamps 26 to form an integrated spray device.

[0025] Spray cooling components A21, B22, C23 and D24 are distributed in a positive direction, and are respectively installed on the upper sides of the four sets of sides of the wheel hub casting mold 100. A mold core 11 is provided on the surface of the wheel hub casting mold 100.

[0026] like Figure 2-5As shown: When the wheel hub casting mold 100 is demolded, this water-cooling system is used. First, the coolant is distributed through the medium pipe 25 to the pressurization pipes A212 and B213 within the spray cooling components A21, B22, C23, and D24, and then sprayed out from multiple sets of downward-sloping atomizing nozzles. This all-around water cooling method can achieve 360° coverage of the wheel hub without dead angles, ensuring uniform cooling of all parts of the wheel hub. Compared with traditional air cooling, which is prone to heat dissipation dead angles, this greatly improves cooling efficiency and uniformity, effectively avoiding defects such as shrinkage cavities, porosity, and bubbles caused by local overheating, and significantly improving the internal quality and structural strength of the wheel hub. The spray cooling components A21, B22, C23, and D24 are installed on the four sides of the wheel hub casting mold 100, respectively. Their reasonable layout can dissipate heat from the high temperature of the newly formed wheel hub. Water has a much higher specific heat capacity than air, so it can absorb more heat under the same conditions, quickly remove heat from the wheel hub, accelerate solidification, shorten the production cycle, and improve production efficiency. At the same time, rapid and uniform cooling can make the microstructure of the wheel hub more compact, improve the overall performance of the product, reduce the probability of deformation and dimensional deviation during subsequent processing, reduce scrap rate, lower production costs, and enhance the product's market competitiveness.

[0027] In a preferred embodiment, the four sets of spray cooling components have the same structure. The spray cooling component A21 includes a fixed base 211, a pressurizing pipe A212, a pressurizing pipe B213, a fixing clip 214, a receiving pipe 215, a docking post 216, and a positioning base 217. The fixed base 211 is L-shaped, and the docking post 216 is fixedly provided at its bottom. At the same time, the end of the docking post 216 away from the fixed base 211 is connected to the positioning base 217.

[0028] The positioning seat 217 is inserted into the positioning groove 12 opened at the bottom of the wheel hub casting mold 100 and fixed by countersunk holes and bolts, and both it and the positioning groove 12 are fan-shaped.

[0029] A receiving tube 215 is fixedly installed on the inner side of the middle part of the fixed base 211, and the cross-section of the receiving tube 215 is semi-circular. At the same time, multiple sets of pressurizing tubes A212 and pressurizing tubes B213 are fixedly installed on both sides of the receiving tube 215.

[0030] Multiple sets of booster pipes A212 and B213 are fixed on the inner wall of the fixing base 211 by two sets of fixing clips 214, and multiple sets of atomizing nozzles are installed equidistantly on both booster pipes A212 and B213.

[0031] like Figure 1-5As shown: The rapid cooling mechanism 200 is installed on the wheel hub casting mold 100 via four sets of positioning seats 217 and positioning grooves 12. The positioning seats 217 are screwed into the positioning grooves 12 at the bottom of the wheel hub casting mold 100. A docking sleeve for inserting docking posts 216 is installed at the end of the positioning seats 217. The four sets of docking posts 216 can be pulled out from the inside of the docking sleeve, allowing for rapid disassembly of the rapid cooling mechanism 200 from the wheel hub casting mold 100 and preventing movement interference between the rapid cooling mechanism 200 and the wheel hub casting mold 100 during mold opening and closing. The docking of the four sets of positioning seats 217 with the positioning grooves 12 at the bottom of the wheel hub casting mold 100 ensures that the rapid cooling mechanism 200 is firmly fixed to the wheel hub casting mold 100 during operation, providing a solid foundation for efficient cooling. The docking sleeve at the end of the positioning seats 217 for inserting docking posts 216 ensures a secure connection between the two. The tight and precise connection ensures the accuracy of the cooling mechanism's installation position, allowing the cooling operation to act more effectively on the wheel hub and improve the cooling effect. When it is necessary to disassemble the rapid cooling mechanism 200, the four sets of docking posts 216 can be easily pulled out from inside the docking cylinder, making the operation simple and efficient and greatly saving disassembly time. It can avoid motion interference between the rapid cooling mechanism 200 and the wheel hub casting mold 100 during the mold opening and closing process. During the wheel hub casting process, the mold opening and closing actions are frequent and require high spatial positioning accuracy. If the rapid cooling mechanism cannot be disassembled in time, it is very likely to collide with the moving mold and cause interference, which will not only damage the rapid cooling mechanism 200 and the wheel hub casting mold 100, resulting in high maintenance costs and downtime, but may also affect the quality of the wheel hub being cast, producing scrap. This quick disassembly design can effectively avoid such risks, ensure the smooth progress of the casting process, improve production efficiency, and reduce production costs.

Claims

1. A rapid cooling mold for motorcycle wheel hub casting, comprising a wheel hub casting mold (100), characterized in that: A rapid cooling mechanism (200) is installed on the outside of the wheel hub casting mold (100), and the rapid cooling mechanism (200) includes a spray cooling assembly A (21) covering one side of the wheel hub casting mold (100). A spray cooling assembly B (22) is connected to one side of the spray cooling assembly A (21), and a spray cooling assembly D (24) is installed on the other side. Meanwhile, a spray cooling assembly C (23) is provided between the spray cooling assembly D (24) and the spray cooling assembly B (22). The rapid cooling mechanism (200) also includes a medium pipe (25) and a connecting clamp (26). The medium pipe (25) is square and has a cooling medium inlet pipe installed at its top. The connecting clamp (26) is fixedly wrapped around the outside of the spray cooling assembly A (21), spray cooling assembly B (22), spray cooling assembly C (23), and spray cooling assembly D (24). The connecting clamp (26) is square and two sets of connecting clamps (26) are arranged in parallel. The four sets of spray cooling assemblies are connected by two sets of the medium pipe (25). The connecting hoop (26) is connected to form an integrated spray device; the spray cooling components A (21), B (22), C (23) and D (24) are distributed in the positive direction, and the spray cooling components A (21), B (22), C (23) and D (24) are respectively installed on the four sides of the wheel hub casting mold (100), and the wheel hub casting mold (100) is provided with a mold core (11).

2. The rapid cooling mold for casting motorcycle wheel hubs according to claim 1, characterized in that: The four sets of spray cooling components have the same structure. The spray cooling component A (21) includes a fixed base (211), a pressurizing pipe A (212), a pressurizing pipe B (213), a fixing clip (214), a receiving pipe (215), a docking post (216), and a positioning seat (217). The fixed base (211) is "L" shaped, and a docking post (216) is fixedly installed at its bottom. At the same time, the end of the docking post (216) away from the fixed base (211) is connected to the positioning seat (217).

3. The rapid cooling mold for casting motorcycle wheel hubs according to claim 2, characterized in that: The positioning seat (217) is inserted into the positioning groove (12) at the bottom of the wheel hub casting mold (100) and fixed by countersunk holes and bolts, and both the positioning seat (217) and the positioning groove (12) are fan-shaped.

4. The rapid cooling mold for casting motorcycle wheel hubs according to claim 2, characterized in that: The middle inner side of the fixed base (211) is fixedly provided with a receiving tube (215), and the cross section of the receiving tube (215) is semi-circular. At the same time, multiple sets of equally distributed booster tubes A (212) and booster tubes B (213) are fixedly provided on both sides of the receiving tube (215).

5. A rapid cooling mold for casting motorcycle wheel hubs according to claim 4, characterized in that: Multiple sets of the pressurizing pipes A (212) and B (213) are fixed on the inner wall of the fixed base (211) by two sets of fixing clips (214), and multiple sets of atomizing nozzles are installed at equal intervals on both the pressurizing pipes A (212) and B (213).

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