A circulating air-cooling mold for a cast wheel hub

Abstract

The present invention belongs to the technical field of hub processing, and discloses a casting hub circulating air cooling mold, which includes a mold body and a cooling system. The mold body includes a side wall and a lower end provided 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 a plurality of air outlet pipes that are connected in sequence. The first cooling channel and the second cooling channel are both arranged in the side wall, and the second cooling channel is located below the first cooling channel. A plurality of air outlet pipes are all connected to the channel hole. Compressed air sequentially passes through the air inlet pipe, the first cooling channel, the second cooling channel, the first connecting pipe, and the air outlet pipes, and finally the compressed air with heat is discharged. The cooling system adopts circulating air cooling, the air is not easy to mix randomly, the cooling effect is good, the temperature control difference of the mold is small, the yield rate of quality control is high, the utilization rate of energy consumption is high, the impact on environmental noise is small, the production environment is effectively improved, and the directional sequential solidification is good when casting parts are cooled.

Description

Technical Field

[0001] The present invention relates to the technical field of hub processing, and particularly relates to a circulating air cooling mold for a cast hub. Background Art

[0002] A casting mold refers to a tool that can form a blank into a cast part. A casting mold is a key process equipment necessary in the production of cast parts, and is a tool that needs to be used in each stroke of the equipment. It plays a crucial role in the production of cast parts. With the continuous development of technology, there is a large demand space for aluminum and magnesium alloy wheels in the fields of aviation and transportation equipment, especially in the automotive manufacturing industry. The existing manufacturing methods of magnesium and aluminum alloy wheels using traditional equipment are to deform solid metals at a certain temperature and pressure, such as casting and spinning. Their products have high mechanical properties and can meet the needs of high-performance vehicles. However, during the casting process of the wheels, the mold heats up severely, generating a large amount of heat, and it is difficult to dissipate the heat in a timely manner, resulting in a relatively high temperature inside the mold. Excessive temperature is likely to cause changes in the mold size and easily affect the accuracy of the cast products.

[0003] Existing automotive aluminum wheel casting molds all use open-air cooling to cool the molds. Although it can dissipate a certain amount of heat from the molds, the cooling air of the open-air cooling is prone to random flow, affecting the internal structure (X-Ray internal structure of the casting) of other local positions, having poor overall mold temperature control, low yield rate of quality control, low recycling rate of compressed air energy consumption, causing waste of costs, and having a greater impact on environmental noise, which is not conducive to production. The directional sequential solidification of the casting is poor. Therefore, improvements are needed. Summary of the Invention

[0004] The purpose of the present invention is to provide a circulating air cooling mold for a cast hub, which can improve the open-air cooling system of the existing cast hub mold into a circulating cooling system, improve the yield rate of quality control, reduce production costs, have little impact on environmental noise, and have good directional sequential solidification of the casting.

[0005] To achieve this purpose, the present invention adopts the following technical solutions:

[0006] A circulating air cooling mold for a cast hub, comprising:

[0007] A mold body, the mold body includes a side wall and a lower end portion, and a channel hole is provided in the lower end portion;

[0008] Cooling system, the cooling system includes an intake pipe, a first cooling channel, a second cooling channel, a first connecting pipe, and a plurality of outlet pipes. The first cooling channel is arranged in the side wall and connected to the intake pipe; the second cooling channel is arranged in the side wall and located below the first cooling channel, and the second cooling channel is communicated with the first cooling channel; one end of the first connecting pipe is connected to the second cooling channel; the other end of the first connecting pipe is connected to a plurality of the outlet pipes, and the other ends of the plurality of outlet pipes are all communicated with the channel holes.

[0009] Preferably, an inner cavity is formed by the side wall and the lower end portion. A first annular groove is arranged on the side of the side wall close to the inner cavity, and a first cover plate is covered outside the first annular groove. The first annular groove and the first cover plate form the first cooling channel.

[0010] Preferably, a second annular groove is arranged on the side of the side wall close to the inner cavity, and a second cover plate is covered outside the second annular groove. The second annular groove and the second cover plate form the second cooling channel.

[0011] Preferably, a plurality of grooves are arranged on the side of the side wall close to the inner cavity. The plurality of grooves are all communicated with the first annular groove and the second annular groove, and a third cover plate is covered outside each of the plurality of grooves. The grooves and the third cover plate form a first channel that communicates the first cooling channel and the second cooling channel.

[0012] Preferably, the first connecting pipe includes an annular channel pipe and a plurality of straight pipes. The annular channel pipe is connected to the plurality of outlet pipes, and one end of each of the plurality of straight pipes is connected to the second cooling channel, and the other end is connected to the annular channel pipe.

[0013] Preferably, the plurality of straight pipes are uniformly arranged along the radial direction of the annular channel pipe, and the annular channel pipe and the second cooling channel are arranged on the same horizontal plane.

[0014] Preferably, the outlet pipes are perpendicular to the plane where the annular channel pipe is located.

[0015] Preferably, the outlet pipes are perpendicular to the plane where the lower end portion is located.

[0016] Preferably, a second connecting pipe is connected to the first cooling channel, and the second connecting pipe is connected to the second cooling channel.

[0017] Preferably, a plurality of second channels communicating with the channel holes are arranged in the lower end portion, and the other ends of the outlet pipes communicate with the channel holes through the second channels.

[0018] Advantages of the present invention: A cooling system is provided inside the mold body. The first cooling channel and the second cooling channel are both arranged inside the side wall, and the second cooling channel is located below the first cooling channel. The air inlet pipe is connected to the first cooling channel, and the first cooling channel is communicated with the second cooling channel. The first connecting pipe communicates the second cooling channel and the air outlet pipe. When the casting wheel hub circulating air cooling mold provided by the present invention is cooled, compressed air flows into the first cooling channel through the air inlet pipe. The compressed air in the first cooling channel flows into the second cooling channel. The compressed air in the second cooling channel flows into the air outlet pipe through the first connecting pipe, and then flows into the channel hole through the air outlet pipe, and finally discharges the compressed air with heat. The cooling system adopts circulating air cooling, the air is not easy to mix randomly, the cooling is uniform and the cooling effect is better. The temperature control difference of the mold is small, the stability is strong, the yield rate of quality control is high, the utilization rate of compressed air is high, the utilization rate of energy consumption is high, the influence on environmental noise is small, effectively improving and optimizing the production environment, and the directional sequential solidification is good when cooling the casting. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of the casting wheel hub circulating air cooling mold provided by the present invention;

[0020] Figure 2 is a schematic structural diagram of a way of communicating the first cooling channel and the second cooling channel in the casting wheel hub circulating air cooling mold provided by the present invention;

[0021] Figure 3 is a schematic structural diagram of another way of communicating the first cooling channel and the second cooling channel in the casting wheel hub circulating air cooling mold provided by the present invention.

[0022] In the figure:

[0023] 10. Mold body; 101. Side wall; 102. Lower end part; 103. Channel hole; 20. Cooling system; 201. Air inlet pipe; 202. First cooling channel; 2021. First annular groove; 2022. First cover plate; 203. Second cooling channel; 2031. Second annular groove; 2032. Second cover plate; 204. First connecting pipe; 2041. Annular channel pipe; 2042. Straight pipe; 205. Air outlet pipe; 206. Second connecting pipe; 207. First channel; 2071. Groove; 2072. Third cover plate; 208. Second channel. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The present invention will be further described in detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present invention, rather than limiting the present invention. In addition, it should be noted that for the sake of description, only parts related to the present invention are shown in the drawings, not all structures.

[0025] In the description of the present invention, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral body; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] In the present invention, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "above and to the upper side", and "on the upper surface" of the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "below and to the lower side", and "on the lower surface" of the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0027] In the description of this embodiment, the orientation or positional relationships such as "upper", "lower", "left", and "right" are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0028] The present invention provides a casting wheel hub circulating air cooling mold, such as Figures 1 to 3As shown, it includes a mold body 10 and a cooling system 20. The cooling system 20 is arranged inside the mold body 10. The mold body 10 includes a side wall 101 and a lower end portion 102, and the lower end portion 102 is provided with a channel hole 103; the cooling system 20 includes an air inlet pipe 201, a first cooling channel 202, a second cooling channel 203, a first connecting pipe 204 and a plurality of air outlet pipes 205. The air inlet pipe 201 is connected with compressed air. The first cooling channel 202 is arranged inside the side wall 101 and is connected with the air inlet pipe 201; the second cooling channel 203 is arranged inside the side wall 101 and is located below the first cooling channel 202, and the second cooling channel 203 is communicated with the first cooling channel 202; one end of the first connecting pipe 204 is connected with the second cooling channel 203, the other end of the first connecting pipe 204 is connected with a plurality of air outlet pipes 205, and the other ends of the plurality of air outlet pipes 205 are all communicated with the channel hole 103. When the cooling system 20 works, the compressed air enters the first cooling channel 202 through the air inlet pipe 201, cools down near the first cooling channel 202, and then the compressed air in the first cooling channel 202 enters the second cooling channel 203, the temperature near the second cooling channel 203 drops, and then the compressed air in the second cooling channel 203 flows into the air outlet pipes 205 through the first connecting pipe 204, and finally flows out of the channel hole 103 through the air outlet pipes 205.

[0029] Optionally, an inner cavity is formed between the side wall 101 and the lower end portion 102. By setting the inner cavity, the thickness of the side wall 101 and the lower end portion 102 can be effectively reduced, and at the same time, the heat dissipation area of the mold body 10 is increased, and sufficient and effective cooling can be carried out.

[0030] Furthermore, a plurality of second channels 208 communicating with the channel hole 103 are arranged inside the lower end portion 102. The other ends of the air outlet pipes 205 are communicated with the channel hole 103 through the second channels 208. By arranging the second channels 208 in the lower end portion 102, on the one hand, it is convenient for the compressed air in the air outlet pipes 205 to be discharged, and on the other hand, the cooling capacity of the lower end portion 102 can be enhanced, ensuring the cooling efficiency of the cooling system 20 for the mold body 10.

[0031] On one side of the side wall 101 close to the inner cavity, a first annular groove 2021 is provided. A first cover plate 2022 is provided outside the first annular groove 2021. The first annular groove 2021 and the first cover plate 2022 form a first cooling channel 202. On one side of the side wall 101 close to the inner cavity, a second annular groove 2031 is provided. The second annular groove 2031 is below the first annular groove 2021. A second cover plate 2032 is provided outside the second annular groove 2031. The second annular groove 2031 and the second cover plate 2032 form a second cooling channel 203. By providing the first cooling channel 202 formed by the first annular groove 2021 and the first cover plate 2022, and the second cooling channel 203 formed by the second annular groove 2031 and the second cover plate 2032, on the one hand, materials can be saved and production costs can be reduced. On the other hand, both the first cooling channel 202 and the second cooling channel 203 are integrally formed with the mold body 10, and the cooling effect is good.

[0032] As a way for the first cooling channel 202 and the second cooling channel 203 to communicate, as Figure 2 shown, the first cooling channel 202 is connected with a second connecting pipe 206. The second connecting pipe 206 is arranged in the inner cavity and is connected with the second cooling channel 203, so as to realize the communication between the first cooling channel 202 and the second cooling channel 203. By arranging the second connecting pipe 206 in the inner cavity, on the one hand, the communication between the first cooling channel 202 and the second cooling channel 203 is realized. On the other hand, the second connecting pipe 206 exposed in the inner cavity can also increase the contact area with the outside, so as to further enhance the cooling capacity of the cooling system 20.

[0033] As another way for the first cooling channel 202 and the second cooling channel 203 to communicate, as Figure 3 shown, on one side of the side wall 101 close to the inner cavity, a plurality of grooves 2071 are provided. The plurality of grooves 2071 all communicate the first annular groove 2021 and the second annular groove 2031. A third cover plate 2072 is provided outside each of the plurality of grooves 2071. A first channel 207 is formed between the groove 2071 and the third cover plate 2072. The first channel 207 communicates the first cooling channel 202 and the second cooling channel 203. On the one hand, materials can be saved and production costs can be reduced. On the other hand, the first channel 207 is integrally formed with the mold body 10, and the cooling effect is good.

[0034] The first connecting pipe 204 includes an annular channel pipe 2041 and a plurality of straight pipes 2042. The annular channel pipe 2041 is connected with a plurality of air outlet pipes 205. One ends of the plurality of straight pipes 2042 are all connected with the second cooling channel 203, and the other ends are connected with the annular channel pipe 2041. The design of the annular channel pipe 2041 can increase the contact area with the outside, so that part of the heat of the compressed air passing through the annular channel pipe 2041 can be dissipated to the outside, and the structure is stable.

[0035] Optionally, a plurality of straight pipes 2042 are uniformly arranged along the radial direction of the annular channel pipe 2041, and the annular channel pipe 2041 and the second cooling channel 203 are arranged on the same horizontal plane. By uniformly arranging the straight pipes 2042 along the radial direction of the annular channel pipe 2041, the stability of the annular channel pipe 2041 and the second cooling channel 203 is enhanced; when the annular channel pipe 2041 and the second cooling channel 203 are arranged on the same horizontal plane, the distance between the annular channel pipe 2041 and the second cooling channel 203 is small. On the one hand, the length of the straight pipe 2042 can be saved, that is, the cost is saved. On the other hand, the second cooling channel 203 and the annular channel pipe 2041 can support each other, and its structure is more stable.

[0036] Furthermore, the air outlet pipe 205 is perpendicular to the plane where the annular channel pipe 2041 is located. At this time, the air outlet pipe 205 can not only be used for the flow of air, but also support the annular channel pipe 2041, ensuring that the annular channel pipe 2041 is in a structurally stable state, avoiding the situation that the annular channel pipe 2041 deflects downward due to its own weight and presses and even breaks the straight pipe 2042 connected to it, reducing the damage risk of the cooling system 20.

[0037] Even further, the air outlet pipe 205 is perpendicular to the plane where the lower end portion 102 is located, further enhancing the supporting effect. At this time, the second cooling channel 203 can be supported both horizontally and vertically and is not easily displaced; the annular channel pipe 2041 and the second cooling channel 203 support each other horizontally, and the annular channel pipe 2041 is supported by the supporting air outlet pipe 205 vertically.

[0038] As a preferred technical solution, the intake pipe 201, the straight pipe 2042, and the air outlet pipe 205 are arranged in a staggered manner, so as to ensure that the compressed air can fully flow in the first cooling channel 202, the second cooling channel 203, and the annular channel pipe 2041, ensuring the cooling efficiency and having a good cooling effect.

[0039] When the casting wheel hub circulating air cooling mold provided by the present invention is cooled, the compressed air flows into the first cooling channel 202 through the intake pipe 201, the compressed air in the first cooling channel 202 flows into the second cooling channel 203, the compressed air in the second cooling channel 203 flows into the air outlet pipe 205 through the first connecting pipe 204, then flows into the channel hole 103 through the air outlet pipe 205, and finally discharges the compressed air with heat. The cooling system 20 adopts circulating air cooling, the air is not easily disorderly, the cooling effect is good, the temperature control difference of the mold is small, the stability is strong, the yield rate of quality control is high, the utilization rate of compressed air is high, and at the same time the utilization rate of energy consumption is high. The cooling system 20 has little impact on the environmental noise during operation, effectively improves and optimizes the production environment, and the directional sequential solidification is good when the circulating air cooling cools the casting.

[0040] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limitations on the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the claims of the present invention.

Claims

1. A circulating air-cooling mold for a cast wheel hub, characterized in that, Comprising: A mold body (10), the mold body (10) includes a side wall (101) and a lower end portion (102), and a channel hole (103) is provided in the lower end portion (102); A cooling system (20), the cooling system (20) includes an intake pipe (201), a first cooling channel (202), a second cooling channel (203), a first connecting pipe (204), and a plurality of outlet pipes (205). The first cooling channel (202) is provided in the side wall (101) and is connected to the intake pipe (201); the second cooling channel (203) is provided in the side wall (101) and is located below the first cooling channel (202), and the second cooling channel (203) is communicated with the first cooling channel (202); one end of the first connecting pipe (204) is connected to the second cooling channel (203); the other end of the first connecting pipe (204) is connected to a plurality of the outlet pipes (205), and the other ends of the plurality of outlet pipes (205) are all communicated with the channel hole (103); The side wall (101) and the lower end portion (102) form an inner cavity. A first annular groove (2021) is provided on one side of the side wall (101) close to the inner cavity, and a first cover plate (2022) is covered outside the first annular groove (2021). The first annular groove (2021) and the first cover plate (2022) form the first cooling channel (202); The first connecting pipe (204) includes an annular channel pipe (2041) and a plurality of straight pipes (2042). The annular channel pipe (2041) is connected to a plurality of the outlet pipes (205), and one ends of the plurality of straight pipes (2042) are all connected to the second cooling channel (203), and the other ends are connected to the annular channel pipe (2041); The plurality of straight pipes (2042) are all arranged radially and uniformly along the annular channel pipe (2041), and the annular channel pipe (2041) and the second cooling channel (203) are arranged on the same horizontal plane.

2. The circulating air-cooling mold for a cast wheel hub according to claim 1, characterized in that, A second annular groove (2031) is provided on one side of the side wall (101) close to the inner cavity, and a second cover plate (2032) is covered outside the second annular groove (2031). The second annular groove (2031) and the second cover plate (2032) form the second cooling channel (203).

3. The circulating air-cooling mold for a cast wheel hub according to claim 2, characterized in that, A plurality of grooves (2071) are provided on one side of the side wall (101) close to the inner cavity. The plurality of grooves (2071) are all communicated with the first annular groove (2021) and the second annular groove (2031), and a third cover plate (2072) is covered outside each of the plurality of grooves (2071). The groove (2071) and the third cover plate (2072) form a first channel (207) that communicates the first cooling channel (202) and the second cooling channel (203).

4. The circulating air-cooling mold for a cast wheel hub according to claim 1, characterized in that, The outlet pipe (205) is perpendicular to the plane where the annular channel pipe (2041) is located.

5. The circulating air-cooling mold for a cast wheel hub according to claim 4, characterized in that, The outlet pipe (205) is perpendicular to the plane where the lower end portion (102) is located.

6. The circulating air-cooling mold for a cast wheel hub according to claim 1 or 2, characterized in that, The first cooling channel (202) is connected to a second connecting pipe (206), and the second connecting pipe (206) is connected to the second cooling channel (203).

7. The circulating air-cooling mold for a cast wheel hub according to any one of claims 1-3, characterized in that, A plurality of second channels (208) communicating with the channel hole (103) are provided in the lower end portion (102), and the other end of the air outlet pipe (205) communicates with the channel hole (103) through the second channels (208).

Images