Wheel hub mold disc surface point ring combined cooling structure and wheel hub mold

Abstract

The utility model discloses a hub mould disc surface point ring combined cooling structure and a hub mould, which comprise a lower mould, the upper end face of the lower mould is provided with a side mould which is combined with the surface of the lower mould to form a hub forming cavity, the end part of the side mould is combined with an upper mould in a sealing way, and the upper mould is used for injecting and forming an aluminum solution to form a hub forming mould cavity. A circle of plum-blossom-shaped water channel cavity is formed in the disc face of the upper die, point cooling material drawing outer convex grooves and point cooling holes are evenly formed in the plum-blossom-shaped water channel cavity, then the end of the plum-blossom-shaped water channel cavity is covered with a water channel cover plate in a sealed welding mode, and therefore a water channel cavity is formed; according to the structure, heat can be rapidly taken away from the point cooling holes with the high temperature, the water flows out of the plum blossom water channel cavity, meanwhile, the whole disc face with the high temperature can be rapidly cooled, the casting cooling period of a product is shortened, and therefore the efficiency is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of wheel hub moulds, and in particular relates to a wheel hub mould disc surface point-ring combined cooling structure and a wheel hub mould. Background Art

[0002] Aluminum alloy wheels are generally produced by casting. The molds used for casting wheels mainly include an upper mold, a lower mold, a side mold and a base. The upper mold, the lower mold and the side mold are combined to form a casting cavity for the wheel to be cast. The lower mold and the side mold are fixed on the base. During pouring, the cavity is filled with material from the pouring port on the lower mold. For aluminum alloy wheels, the faster the cooling, the better the strength of the wheel, so it needs to be cooled during the pouring process. The existing cooling structure here basically uses a circular waterway structure welded in a circle. This structure can only cool the top, and the high-temperature hot spot cannot be effectively and quickly cooled. In addition, the process from water inlet to water outlet will also cause uneven cooling as the heat absorbed by the water gradually increases, making it difficult to control the mold temperature, thereby affecting the cooling speed and effect. Utility Model Content

[0003] The utility model aims to provide a hub mould disk surface spot ring combined cooling structure and a hub mould, so as to solve the problems raised in the above background technology.

[0004] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a wheel hub mold disk surface point ring combined cooling structure, comprising:

[0005] A lower mold, wherein the upper end surface of the lower mold is provided with a side mold which is combined with the surface of the lower mold to form a hub molding cavity, the end of the side mold is sealed and combined with an upper mold for injecting aluminum solution into the hub molding cavity, and the inner concave mold disk of the upper mold is provided with a plum blossom water channel cavity for cooling the molded hub;

[0006] The water channel cover plate is a plum blossom-shaped cover welded at the port of the plum blossom water channel cavity to form a plum blossom-shaped water channel. One side of the surface of the water channel cover plate is provided with an outlet pipe with a bent end for outputting cooling water. The end of the water channel cover plate is connected through the upper mold plate with an annular point cooling pipe for cooling water to enter and evenly cool the hub molded parts.

[0007] Preferably, the inner face away from the plum blossom water channel cavity is evenly provided with outer convex grooves for spot cooling, and the inner part of the plum blossom water channel cavity is evenly provided with spot cooling holes sunken into the outer convex grooves for spot cooling, so that the cooling water enters the plum blossom water channel cavity to cool down the formed wheel hub.

[0008] Preferably, the upper mold plate is fixed to the end of the water channel cover plate and positioning holes are evenly arranged on the surface of the upper mold plate, so that the spot cooling inlet pipe can be inserted into the positioning holes for sealing welding and positioning to prevent cooling water from leaking out.

[0009] Preferably, spot cooling inlet pipes are evenly arranged on the bottom surface of the annular spot cooling tube, and an upwardly extending water inlet pipe is arranged on one side of the end of the annular spot cooling tube, so that cooling water can enter the annular spot cooling tube through the spot cooling inlet pipe and enter the plum blossom water channel cavity for uniform heat dissipation.

[0010] Preferably, water inlets are evenly penetrated at positions of the water channel cover plate corresponding to the spot cooling holes, and the spot cooling inlet pipe on the annular spot cooling pipe penetrates into the spot cooling hole in the plum blossom water channel cavity through the water inlet.

[0011] Preferably, a branch pipe extending through and into the hub forming cavity is provided at the center of the waterway cover plate, and a diversion cone is provided at the vertical bottom end of the branch pipe for diverting the aluminum solution injected into the hub forming cavity, so that the aluminum solution injected into the hub forming cavity can flow evenly around.

[0012] In addition, in order to achieve the above-mentioned purpose, the utility model also provides a wheel hub mold, which includes the above-mentioned wheel hub mold disk surface point ring combined cooling structure.

[0013] Compared with the prior art, the technical effects and advantages of the utility model are as follows: the wheel hub mold disk point ring combined cooling structure and the wheel hub mold, a circle of plum blossom water channel cavity is made on the disk of the upper mold, and then the point cooling material outer convex grooves and point cooling holes are evenly arranged in the plum blossom water channel cavity, and then the water channel cover plate is covered and sealed and welded at the end of the plum blossom water channel cavity, so as to form a water channel cavity, and the cooling water is simultaneously transmitted to each point cooling hole through the water inlet pipe, and then the water is transmitted to the plum blossom water channel cavity and discharged from the water outlet pipe. This structure can quickly cool the water from the point cooling hole with a higher temperature. The heat is taken away from the hole, and the water flows out through the plum blossom water channel cavity, and at the same time, the entire disk with higher temperature can be quickly cooled. The cooling is relatively uniform and rapid, which greatly shortens the casting cooling cycle of the product, thereby greatly improving the efficiency. Now the wheel hub mold disk point ring combined cooling structure, the water inlet is first from the evenly distributed mold temperature The highest point cooling material convex groove and the point cooling water pipe enter the cooling water at the same time. At the same time, there are more cooling points and they are more uniform, and the entire disk surface can be quickly cooled through the plum blossom water channel, thereby greatly improving the cooling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the partial structure of the wheel hub mold of the utility model;

[0016] Figure 3This is a schematic diagram of the exploded structure of the upper mold of the utility model;

[0017] Figure 4 This is a schematic diagram of the top die structure of the utility model;

[0018] Figure 5 It is a schematic diagram of the back structure of the upper mold of the utility model.

[0019] In the figure: 1. lower die; 2. side die; 3. upper die; 4. plum blossom water channel cavity; 5. water channel cover plate; 6. water outlet pipe; 7. upper die pressure plate; 8. annular spot cooling pipe; 9. spot cooling convex groove; 10. spot cooling hole; 11. positioning perforation; 12. spot cooling inlet pipe; 13. water inlet pipe; 14. water inlet; 15. branch pipe; 16. diversion cone. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-5 The utility model provides a technical solution: a wheel hub mold disk point ring combined cooling structure, including:

[0022] A lower die 1, wherein the upper end surface of the lower die 1 is provided with a side die 2 which is combined with the surface of the lower die 1 to form a hub forming cavity, the surface of the lower die 1 is a conical arc surface extending upward, and the side die 2 is fixed to the upward arc surface of the end of the lower die 1 by bolts, and the upper die 3 can be covered at the port of the side die 2, the end of the side die 2 is sealed and combined with an upper die 3 for injecting aluminum solution into the hub forming cavity, and the upper die surface is recessed downward to the inside of the hub forming cavity, which is conducive to the injection of aluminum solution to form a hub forming part, and the inner concave die disk surface of the upper die 3 is provided with a plum blossom water channel cavity 4 for cooling the formed hub, which can make the cooling water flow into the plum blossom water channel cavity 4 to evenly absorb the heat generated by the hub workpiece, thereby accelerating the cooling of the hub part;

[0023] The water channel cover plate 5 is a plum blossom-shaped cover welded at the port of the plum blossom water channel cavity 4 to form a sealed plum blossom-shaped water channel, so that the cooling water flowing into the plum blossom water channel cavity 4 is dispersed in a plum blossom shape, and flows into the outer convex groove 9 of the spot cooling excavation for spot cooling and uniform cooling and heat absorption. One side of the surface of the water channel cover plate 5 is provided with a water outlet pipe 6 with a bent end for outputting cooling water, so that the water level in the plum blossom water channel cavity 4 can be raised and the cooling water can be output through the water outlet pipe 6. The end of the water channel cover plate 5 is penetrated by the upper mold plate 7 and connected with an annular spot cooling pipe 8 for cooling water to enter and uniformly cool the hub molding part, so that the cooling water input from the outside into the annular spot cooling pipe 8 can be formed into a ring and evenly enter the plum blossom water channel cavity 4 through the spot cooling inlet pipe 12, and flow into the outer convex groove 9 of the spot cooling excavation.

[0024] The inner face away from the plum blossom water channel cavity 4 is evenly provided with a spot cooling convex groove 9, which can cool the higher temperature point, and the inner face of the plum blossom water channel cavity 4 is evenly provided with a spot cooling hole 10 sunken into the spot cooling convex groove 9, which can take away the heat from the spot cooling hole 10 at the highest temperature of the hub molding part for heat dissipation. The upper mold plate 7 is fixed to the end of the water channel cover plate 5, and the surface of the upper mold plate 7 is evenly provided with positioning holes 11, so that the spot cooling inlet pipe 12 passes through the positioning holes 11 and is welded and sealed with solder, thereby strengthening the firmness and stability of the spot cooling inlet pipe 12 on the water channel cover plate 5. The bottom surface of the annular spot cooling pipe 8 is evenly provided with a spot cooling inlet pipe 12, and one side of the end of the annular spot cooling pipe 8 is provided with an upwardly extending water inlet pipe 13, so that cooling water enters the inner face of the annular spot cooling pipe 8 through the water inlet pipe 13 and is transported to the plum blossom water channel cavity 4 from the spot cooling inlet pipe 12 for spot cooling.

[0025] The water channel cover plate 5 is evenly penetrated with water inlets 14 at the positions corresponding to the spot cooling holes 10, so that the spot cooling inlet pipe 12 can pass through the water inlet 14 and enter the spot cooling hole 10 after being welded and sealed, and the spot cooling inlet pipe 12 on the annular spot cooling pipe 8 penetrates into the spot cooling hole 10 in the plum blossom water channel cavity 4 through the water inlet 14, which can cool down the high temperature points of the hub parts. The center position of the water channel cover plate 5 is provided with a branch pipe 15 extending through the inside of the hub molding cavity, and the vertical bottom end of the branch pipe 15 is provided with a diversion cone 16 for injecting and diverting the aluminum solution into the hub molding cavity, so that the aluminum solution injected into the hub molding cavity flows down through the branch pipe 15 to the diversion cone 16, so that the aluminum solution is evenly distributed and flows down into the hub molding cavity.

[0026] In addition, in order to achieve the above-mentioned purpose, the utility model also provides a wheel hub mold, which includes the above-mentioned wheel hub mold disk surface point ring combined cooling structure.

[0027] Specifically, when in use, the wheel hub mold is formed into a closed wheel hub molding cavity by the upper mold 3, the lower mold 1, and the side mold 2 after the mold is closed. The aluminum melt of about 700 degrees is injected into the wheel hub molding cavity from the branch pipe 15 to the diversion cone 16 through pressure, and the water outlet pipe 6 is connected to the external box for collecting cooling water. At the same time, the water inlet pipe 13 is connected to the container for storing cooling water through the pump body. The cooling water is transported to the annular spot cooling pipe 8 through the water inlet pipe 13. The cooling water in the annular spot cooling pipe 8 is transported to each spot cooling hole 10 in the plum blossom water channel cavity 4 through the evenly distributed spot cooling inlet pipe 12, and flows into the outer convex groove 9 of the spot cooling excavation to achieve the effect of cooling the highest temperature point. As the water level in the plum blossom water channel cavity 4 rises, the cooling water is transported upward through the water outlet pipe 6, so that the cooling water can be delivered to the plum blossom water channel cavity 4 and discharged from the water outlet pipe 6. This structure can quickly take away the heat from the point cooling hole 10 with higher temperature, and the water flowing out through the plum blossom water channel cavity 4 can also quickly cool down the entire high temperature disk surface. The relative cooling is more uniform and faster, which greatly shortens the casting cooling cycle of the product, thereby greatly improving the efficiency. The water is firstly fed into the point cooling pipe 12 at the convex part with the highest mold temperature in the uniformly distributed shape, and water is fed in at the same time. At the same time, there are more and more uniform cooling points, and the entire disk surface can be quickly cooled through the plum blossom water channel cavity 4, thereby improving the cooling effect.

[0028] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A wheel hub mold disk point ring combined cooling structure, characterized in that: include: A lower mold (1), wherein the upper end surface of the lower mold (1) is provided with a side mold (2) which is combined with the surface of the lower mold (1) to form a hub molding cavity, the end of the side mold (2) is sealed and combined with an upper mold (3) for injecting aluminum solution into the hub molding cavity, and the inner concave mold plate surface of the upper mold (3) is provided with a plum blossom water channel cavity (4) for cooling the molded hub; A water channel cover plate (5), the water channel cover plate (5) is a plum blossom-shaped cover welded at the end of the plum blossom water channel cavity (4) to form a plum blossom-shaped water channel, one side of the surface of the water channel cover plate (5) is provided with a water outlet pipe (6) with one end being bent and for outputting cooling water, and the end of the water channel cover plate (5) is connected through an upper mold plate (7) to be penetrated by a ring-shaped spot cooling pipe (8) for cooling water to enter and uniformly cool the hub molding.

2. The wheel hub mold disk point-ring combined cooling structure according to claim 1, characterized in that: The inner face away from the plum blossom water channel cavity (4) is evenly provided with external convex grooves (9) for spot cooling, and the inner part of the plum blossom water channel cavity (4) is evenly provided with spot cooling holes (10) sunken into the external convex grooves (9) for spot cooling.

3. The wheel hub mold disk point-ring combined cooling structure according to claim 2, characterized in that: The upper mold plate (7) is fixed to the end of the waterway cover plate (5) and positioning through holes (11) are evenly arranged on the surface of the upper mold plate (7).

4. The wheel hub mold disk point-ring combined cooling structure according to claim 3 is characterized by: The bottom surface of the annular spot cooling pipe (8) is evenly provided with spot cooling inlet pipes (12), and one side of the end of the annular spot cooling pipe (8) is provided with a water inlet pipe (13) extending upward.

5. The wheel hub mold disk point-ring combined cooling structure according to claim 4, characterized in that: The water channel cover plate (5) is evenly penetrated with water inlets (14) at positions corresponding to the spot cooling holes (10), and the spot cooling inlet pipe (12) on the annular spot cooling pipe (8) penetrates into the spot cooling hole (10) in the plum blossom water channel cavity (4) through the water inlet (14).

6. The wheel hub mold disk surface spot-ring combined cooling structure according to claim 1, characterized in that: A branch pipe (15) is provided at the center of the waterway cover plate (5) and extends through the inside of the hub molding cavity, and a diversion cone (16) is provided at the vertical bottom end of the branch pipe (15) for diverting the aluminum solution injected into the hub molding cavity.

7. A wheel hub mold, characterized in that: The wheel hub mold comprises the wheel hub mold disk surface point-ring combined cooling structure as described in any one of claims 1-6.

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