Water cooling mold for casting hub

Abstract

The utility model provides a water cooling die for casting hubs, which relates to the field of casting hubs and adopts the technical scheme that cooling channels are arranged in a bottom die, a side die and a top die, each cooling channel comprises a first channel and a second channel, a water inlet end of each first channel is communicated with a cooling water source, and a water outlet end of each second channel is communicated with a recycling water source. The device further comprises a partition cooling control assembly which is arranged outside the bottom die, the side dies and the top die, the partition cooling control assembly comprises a water outlet pipe and a water inlet pipe, a second valve is arranged on the water outlet pipe, the two ends of the water outlet pipe communicate with the first channel and a recycled water source correspondingly, and a third valve is arranged on the water inlet pipe. Two ends of the water inlet pipe are respectively communicated with the second channel and a cooling water source. According to the cooling device, the corresponding mold can be cooled in a partitioned mode, the uniform cooling effect is guaranteed, the temperature of the mold is changed according to a set curve, an ideal temperature field is continuously formed, and therefore the production efficiency and quality are guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of cast wheels, in particular to a water-cooling mold for cast wheels. Background Art

[0002] A wheel hub is a cylindrical metal component that supports the tire inside the tire contour and is centered on the axle. It is also called a rim, steel rim, wheel, or tire bell. There are many types of wheel hubs according to different diameters, widths, forming methods, and materials. Wheel hubs are cast through molds; the processing method of wheel hubs mainly relies on casting, which involves the use of molds. The molds are generally of a split structure, including an upper mold, a bottom mold, and multiple side molds, which together form a wheel hub cavity. Specifically, the main function of the upper mold is to be responsible for the forming of the back cavity surface of the wheel hub, the bottom mold is to form the front surface of the wheel hub, and the side molds are to form the rim surface; the importance of the mold is self-evident. It is not only the key equipment for forming but also acts as a heat exchanger. During the casting process, the heat exchange relationship between the mold and the molten metal is extremely close. Whether the temperature field distribution of the mold is uniform and whether the temperature is stable directly affect the quality of the casting, the service life of the mold, and the production efficiency.

[0003] In the prior art, cooling channels are arranged in each mold of the wheel hub, and cold water is passed through to cool the mold to ensure that the mold forms a relatively ideal temperature field.

[0004] In order to increase the heat exchange area, the cooling channels are in an S-shaped structure inside the mold. However, as the cooling water flows, its temperature continuously rises, and the cooling capacity gradually decreases, resulting in a relatively rapid temperature rise in the area of the mold close to the water outlet. The water-cooling effect of the wheel hub mold is uneven. This leads to, on the one hand, an extended cooling time of the mold, affecting the production efficiency, and on the other hand, it is difficult to ensure that the temperature of the mold changes according to the set curve, and it is impossible to continuously form a relatively ideal temperature field, affecting the product quality. Summary of the Utility Model

[0005] In order to solve the technical problem of uneven water-cooling effect of the wheel hub mold in the above prior art, the utility model provides a water-cooling mold for cast wheels, which can perform zoning cooling on the corresponding mold, ensure a uniform cooling effect, enable the temperature of the mold to change according to the set curve, continuously form a relatively ideal temperature field, and thus ensure the production efficiency and quality.

[0006] The technical solution adopted by the present utility model to solve the above technical problems is as follows: A water-cooling mold for a cast wheel hub, comprising a bottom mold, a side mold and a top mold. Cooling channels are provided inside the bottom mold, the side mold and the top mold. The cooling channels include a first channel and a second channel. The water inlet end of the first channel is connected to a cooling water source, and the water outlet end of the second channel is connected to a recovery water source. A partition cooling control assembly is further included. The partition cooling control assembly is arranged outside the bottom mold, the side mold and the top mold. The partition cooling control assembly includes a water outlet pipe and a water inlet pipe. A second valve is provided on the water outlet pipe. Two ends of the water outlet pipe are respectively connected to the first channel and the recovery water source. A third valve is provided on the water inlet pipe. Two ends of the water inlet pipe are respectively connected to the second channel and the cooling water source.

[0007] By segmenting the cooling channels and connecting them to the cooling water source respectively, the present utility model realizes partition cooling of the corresponding molds, avoids the phenomenon of uneven cooling caused by only using one cooling water source, improves the cooling efficiency of the molds, enables the temperature of the molds to change according to the set temperature change curve, continuously forms a relatively ideal temperature field, and further ensures the production efficiency and quality.

[0008] Further, both the first channel and the second channel are in an S-shaped structure. By setting it in an S-shaped structure, the contact area between the cooling water and the mold can be increased, and the cooling effect can be enhanced.

[0009] Further, the water outlet end of the first channel and the water inlet end of the second channel are adjacent. This ensures a better cooling effect in the middle area of the mold.

[0010] Further, the partition cooling control assembly further includes a connecting pipe. A first valve is provided on the connecting pipe. Two ends of the connecting pipe are respectively connected to the first channel and the second channel. The wall thickness of the area where the first channel is located is smaller than the wall thickness of the area where the second channel is located.

[0011] By setting the connecting pipe, the present utility model can reduce the cooling speed of the thick wall area corresponding to the second channel, avoid a large temperature difference between the obvious cooling effect of the thick wall area and the thin wall area, and ensure that the molds with uneven wall thickness can also achieve a relatively uniform cooling effect.

[0012] Further, the water inlet end of the first channel is connected to a cooling water source through a fourth valve, and the fourth valve is a regulating valve.

[0013] Further, the third valve is a regulating valve.

[0014] By using the regulating valve, the present utility model can adjust the water inflow of the cooling water and improve the control degree of the mold cooling process.

[0015] Further, temperature sensors are provided at positions corresponding to the first channel and the second channel on the outside of the bottom mold, the side mold, and the top mold. The temperature sensors are electrically connected to a control unit, and the control unit further includes a timing module. The first valve, the second valve, and the third valve are all electrically connected to the control unit.

[0016] By providing temperature sensors and a control module, accurate and closed-loop control of the mold cooling process can be achieved. The cooling water volume can be adjusted according to the actual temperature of the mold, improving the control accuracy of mold cooling.

[0017] As can be seen from the above technical solutions, the present utility model has the following advantages:

[0018] The present utility model provides a water-cooled mold for casting wheels. By segmenting the cooling channels and connecting them to the cooling water sources respectively, zonal cooling of the corresponding molds is realized, avoiding the phenomenon of uneven cooling caused by only using one cooling water source, improving the cooling efficiency of the mold, enabling the temperature of the mold to change according to the set temperature change curve, continuously forming a relatively ideal temperature field, and thus ensuring production efficiency and quality; by setting it in an S-shaped structure, the contact area between the cooling water and the mold can be increased, enhancing the cooling effect; by using regulating valves, the inflow of cooling water can be adjusted, improving the control degree of the mold cooling process; by providing a connecting pipe, the cooling speed of the thick-wall area corresponding to the second channel can be reduced, avoiding a large temperature difference between the obvious cooling effect of the thick-wall area and the thin-wall area, ensuring that molds with uneven wall thickness can also achieve a relatively uniform cooling effect; by providing temperature sensors and a control module, accurate and closed-loop control of the mold cooling process can be achieved. The cooling water volume can be adjusted according to the actual temperature of the mold, improving the control accuracy of mold cooling. Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions of the present utility model, the drawings required for description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0020] Figure 1 It is a schematic structural diagram of the top mold, bottom mold, or side mold in the specific embodiment of the present utility model.

[0021] In the figure, 1, cooling water source; 2, third valve; 3, recycling water source; 4, water inlet pipe; 5, second channel; 6, first channel; 7, first valve; 8, fourth valve; 9, second valve; 10, water outlet pipe. Specific Embodiments

[0022] In order to make the objectives, features, and advantages of the present utility model more obvious and understandable, the following will clearly and completely describe the technical solutions in the present utility model with reference to the accompanying drawings in the specific embodiments. Obviously, the embodiments described below are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments in this patent, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of this patent.

[0023] As Figure 1 shown, this specific embodiment provides a water-cooling mold for a casting wheel hub, including a bottom mold, a side mold, and a top mold. Cooling channels are provided in the bottom mold, the side mold, and the top mold. The cooling channels include a first channel 6 and a second channel 5. The water inlet end of the first channel 6 is connected to a cooling water source 1, and the water outlet end of the second channel 5 is connected to a recovery water source 3. A partition cooling control component is provided between the first channel 6 and the second channel 5. The partition cooling control component is arranged outside the bottom mold, the side mold, and the top mold. The partition cooling control component includes a water outlet pipe 10 and a water inlet pipe 4. A second valve 9 is provided on the water outlet pipe 10. The two ends of the water outlet pipe 10 are respectively connected to the water outlet end of the first channel 6 and the recovery water source 3. A third valve 2 is provided on the water inlet pipe 4. The two ends of the water inlet pipe 4 are respectively connected to the water inlet end of the second channel 5 and the cooling water source 1.

[0024] In this specific embodiment, by segmenting the cooling channels and respectively connecting them to the cooling water source 1, partition cooling of the corresponding mold is achieved, avoiding the phenomenon of uneven cooling caused by only using one cooling water source 1, improving the cooling efficiency of the mold, enabling the temperature of the mold to change according to the set temperature change curve, continuously forming a relatively ideal temperature field, and thus ensuring production efficiency and quality.

[0025] As Figure 1 shown, in order to improve the cooling efficiency, in this specific embodiment, both the first channel 6 and the second channel 5 are in an S-shaped structure. By setting it in an S-shaped structure, the contact area between the cooling water and the mold can be increased, enhancing the cooling effect. The water outlet end of the first channel 6 and the water inlet end of the second channel 5 are adjacent, which can ensure a better cooling effect in the middle of the mold.

[0026] As Figure 1As shown in the figure, due to the uneven thickness of the bottom mold, side mold and fixed mold, under the action of the molten aluminum, there is a phenomenon that the wall thickness area heats up slowly and the wall thickness area heats up quickly. In order to make the temperature difference in the areas with different mold thicknesses smaller and improve the consistency, in this specific embodiment, the partition cooling control assembly further includes a connecting pipe, and a first valve 7 is arranged on the connecting pipe. The two ends of the connecting pipe are respectively communicated with the water outlet end of the first channel 6 and the water inlet end of the second channel 5. The wall thickness of the area where the first channel 6 is located is smaller than the wall thickness of the area where the second channel 5 is located. That is, through the connecting pipe, the cooling water flowing through the first channel 6 can be used to cool the second channel 5. At this time, the cooling water has been heated up when flowing through the thin wall area, and the cooling effect on the second channel 5 decreases. At the same time, the wall of the corresponding area of the second channel 5 is thicker and its temperature is lower itself. Therefore, through the action of the connecting pipe, the temperature difference between the corresponding areas of the second channel 5 and the first channel 6 is smaller, ensuring that the mold with uneven wall thickness can also achieve a more uniform cooling effect.

[0027] In order to control the cooling process of the mold, the water inlet end of the first channel 6 is connected to a cooling water source 1 through a fourth valve 8. The fourth valve 8 is a regulating valve, the third valve 2 is a regulating valve, and both the first valve 7 and the second valve 9 can be butterfly valves; at the same time, temperature sensors are arranged at the positions corresponding to the first channel 6 and the second channel 5 outside the bottom mold, side mold and top mold. The temperature sensors are electrically connected to the control unit. The control unit further includes a timing module. The first valve 7, the second valve 9, the third valve 2 and the fourth valve 8 are all electrically connected to the control unit. By setting the temperature sensors and the control module, the cooling process of the mold can be accurately and closed-loop controlled, and the cooling water volume can be adjusted according to the actual temperature of the mold, improving the control accuracy of the mold cooling; in this specific embodiment, the temperature sensor uses a thermocouple.

[0028] The cooling process of this cast wheel water-cooled mold is as follows:

[0029] The control unit controls the fourth valve 8 and the third valve 2 to open and cool down at a set flow rate. Within the set time, when the control unit finds that the temperature change speed is inconsistent with the set temperature change curve, it controls the cooling water flow rate by adjusting the opening degrees of the fourth valve 8 and the third valve 2, thereby controlling the cooling speed. When it is found during the cooling process that the temperature difference between the two thermocouples transmitted back on the same mold exceeds the set threshold, the control unit controls the first valve 7 to open and closes the second valve 9 and the third valve 2, and adjusts the opening degree of the fourth valve 8.

[0030] It can be seen from the above specific embodiments that the present invention has the following beneficial effects:

[0031] 1. By segmenting the cooling channels and connecting them to the cooling water source 1 separately, the zonal cooling of the corresponding mold is achieved, avoiding the phenomenon of uneven cooling caused by only using one cooling water source 1, improving the cooling efficiency of the mold, enabling the temperature of the mold to change according to the set temperature change curve, continuously forming a relatively ideal temperature field, and thus ensuring the production efficiency and quality.

[0032] 2. By setting it into an S-shaped structure, the contact area between the cooling water and the mold can be increased, enhancing the cooling effect.

[0033] 3. By using a regulating valve, the water inflow of the cooling water can be adjusted, improving the control degree of the mold cooling process.

[0034] 4. By setting a connecting pipe, the cooling rate of the thick-walled area corresponding to the second channel 5 can be reduced, avoiding a large temperature difference between the obvious cooling effect of the thick-walled area and the thin-walled area, and ensuring that the mold with uneven wall thickness can also achieve a relatively uniform cooling effect.

[0035] 5. By setting a temperature sensor and a control module, the accurate and closed-loop control of the mold cooling process can be realized, and the cooling water volume can be adjusted according to the actual temperature of the mold, improving the control accuracy of the mold cooling.

[0036] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present utility model. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model. Therefore, the present utility model will not be limited to these embodiments shown herein, but rather will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A water-cooling mold for a casting wheel hub, comprising a bottom mold, a side mold and a top mold, characterized in that: The bottom mold, the side mold and the top mold are all provided with cooling channels, the cooling channels comprising a first channel (6) and a second channel (5), the water inlet end of the first channel (6) is connected to a cooling water source (1), the water outlet end of the second channel (5) is connected to a recycling water source (3), and also comprises a zoned cooling control component, the zoned cooling control component is arranged outside the bottom mold, the side mold and the top mold, the zoned cooling control component comprises a water outlet pipe (10) and a water inlet pipe (4), the water outlet pipe (10) is provided with a second valve (9), the two ends of the water outlet pipe (10) are respectively connected to the first channel (6) and the recycling water source (3), the water inlet pipe (4) is provided with a third valve (2), the two ends of the water inlet pipe (4) are respectively connected to the second channel (5) and the cooling water source (1).

2. The casting wheel hub water cooling mold according to claim 1, characterized in that: Both the first channel (6) and the second channel (5) are S-shaped structures.

3. The casting wheel hub water cooling mold according to claim 2, characterized in that: The water outlet end of the first channel (6) is adjacent to the water inlet end of the second channel (5).

4. The casting wheel hub water cooling mold according to claim 3, characterized in that: The zoned cooling control assembly also includes a connecting pipe, on which a first valve (7) is provided, and two ends of the connecting pipe are respectively connected to the first channel (6) and the second channel (5), and the wall thickness of the area where the first channel (6) is located is smaller than the wall thickness of the area where the second channel (5) is located.

5. The casting wheel hub water cooling mold according to claim 4, characterized in that: The water inlet end of the first channel (6) is connected to a cooling water source (1) via a fourth valve (8), and the fourth valve (8) is a regulating valve.

6. The casting wheel hub water cooling mold according to claim 5, characterized in that: The third valve (2) is a regulating valve.

7. The casting wheel hub water cooling mold according to claim 6, characterized in that: Temperature sensors are arranged at positions outside the bottom mold, the side mold and the top mold corresponding to the first channel (6) and the second channel (5), and the temperature sensors are electrically connected to a control unit. The control unit also includes a timing module, and the first valve (7), the second valve (9), the third valve (2) and the fourth valve (8) are all electrically connected to the control unit.

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