Self-heat-dissipation forced cooling structure of hub side die

Abstract

The utility model relates to the field of aluminum alloy hub casting, and discloses a hub side die self-heat-dissipation forced cooling structure which comprises a side die body, a plurality of heat dissipation grooves are formed in a back cavity of the side die body at intervals, the heat dissipation grooves are formed along the vertical direction of the side die body, a reinforcing rib plate is supported in the back cavity of the side die body along the horizontal direction, and the reinforcing rib plate is connected with the side die body. A cooling air pipe corresponding to the heat dissipation groove is arranged in the back cavity of the side die body, a plurality of air outlets are formed in the cooling air pipe, and the cooling air pipe is communicated with compressed air. The heat dissipation grooves are formed in the side die body, so that the heat dissipation area of the back cavity of the side die body is increased, rapid heat dissipation of the die is facilitated, on the other hand, the thickness of the side die body is reduced, heat dissipation efficiency is further improved, arrangement of cooling air paths is reduced or omitted, the current situation that die pipelines are disordered in arrangement and connection is improved, and production cost is reduced. Consumption of compressed air is saved, the rim shrinkage porosity defect is effectively overcome, meanwhile, operation efficiency is guaranteed, and noise pollution of the operation environment is relieved.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum alloy wheel hub casting, in particular to a wheel hub side mold self-heating and strong cooling structure. Background Art

[0002] The increasing market demand for a wider variety of aluminum alloy wheels is placing higher demands on the wheel casting process. Currently, for large-size wheels (20-22-inch products), and other specialized wheel structures, the finished rim thickness can reach 6-9mm. This thick blank accumulates significant heat in the wheel mold side molds during the casting process, leading to slow heat dissipation. This restricts production efficiency and easily creates shrinkage defects beneath the rim, impacting casting quality. Currently, the on-site solution is to add side mold air cooling mechanisms to cool the side molds. This typically requires adding four or more cooling air ducts to the mold specifically for cooling the side molds. Therefore, each set of molds has more cooling air ducts than conventional side molds, resulting in messy mold pipeline layout and connection, which is not conducive to mold inspection and maintenance; at the same time, the layout of four cooling pipelines increases the consumption of compressed air and raises production costs; although the above measures have a certain degree of improvement effect on the rim shrinkage, they have not achieved obvious effect on efficiency improvement; and since the cooling parameters need to be re-studied and explored, the overall correction time is long, which is not conducive to process stability.

[0003] Based on this, developing a self-heating and strong cooling structure for the hub side mold and studying improvement methods on the mold body to improve the rim shrinkage and improve production efficiency are issues that need to be solved urgently. Utility Model Content

[0004] The purpose of this utility model is to provide a hub side mold self-heating and strong cooling structure to solve the problem that the existing hub casting mold cannot meet the efficient cooling requirements of special structure hubs such as large size and thick blank.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A wheel hub side mold self-heating and strong cooling structure comprises a side mold body, a back cavity of the side mold body is provided with a plurality of heat dissipation grooves spaced apart from each other, and the heat dissipation grooves are opened along the vertical direction of the side mold body.

[0007] Preferably, the heat dissipation groove has a depth of 20-30 mm, a width of 15-25 mm, and a spacing between adjacent heat dissipation grooves of 20-30 mm.

[0008] Preferably, the heat dissipation groove is formed in the back cavity of the side mold body by milling.

[0009] Preferably, the heat dissipation groove can also be cast integrally with the side mold body during production.

[0010] Preferably, the back cavity of the side mold body is provided with a reinforcing rib plate, and the reinforcing rib plate is supported in the back cavity of the side mold body along the horizontal direction.

[0011] Preferably, a cooling air duct is provided in the back cavity of the side mold body corresponding to the heat dissipation groove, a plurality of air outlets are opened on the cooling air duct, and the cooling air duct is connected to compressed air.

[0012] Preferably, the air outlet is arranged at a certain inclination angle relative to the back cavity of the side mold body, so that the compressed air forms a stable airflow and circulates efficiently along the back cavity of the side mold body.

[0013] Preferably, the inclination angle of the air outlet relative to the vertical direction is 40-60°.

[0014] The beneficial effects of the present invention are as follows: by arranging heat dissipation grooves on the side mold body, the present invention increases the heat dissipation area of ​​the back cavity of the side mold body on the one hand, which is beneficial to the rapid heat dissipation of the mold; on the other hand, the multiple heat dissipation grooves thin the thickness of the side mold body to a certain extent, further improving the heat dissipation efficiency. When casting a large-sized and thick wheel hub blank, the heat dissipation grooves can effectively improve the heat dissipation efficiency of the side mold body, thereby reducing or eliminating the need for the layout of the cooling air duct, improving the current situation of messy layout and connection of the mold pipeline, saving the consumption of compressed air, effectively improving the rim shrinkage defect, and ensuring the working efficiency. The setting of the cooling air duct further improves the heat dissipation efficiency of the mold body. The setting of the reinforcing rib plate avoids the problem of the side mold body being deformed due to the influence of the setting of the heat dissipation grooves on the strength of the side mold body, thereby ensuring the structural strength of the side mold body and the casting accuracy of the wheel hub blank. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0016] Figure 1 It is a structural diagram of the present utility model.

[0017] Figure 2 for Figure 1 Section view in the AA direction.

[0018] Figure 3 for Figure 1 Cross-sectional view along the BB direction.

[0019] In the figure: 10--side mold body; 11--heat dissipation groove; 20--reinforcement rib plate; 30--cooling air duct; 31--air outlet; DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] like Figure 1-3 As shown, a wheel hub side mold self-heating and strong cooling structure includes a side mold body 10. The back cavity of the side mold body 10 is provided with a plurality of heat dissipation grooves 11 spaced apart. The heat dissipation grooves 11 are arranged along the vertical direction of the side mold body 10, forming a heat dissipation structure with a plurality of heat dissipation fins. The provision of the heat dissipation grooves 11, on the one hand, increases the heat dissipation area of ​​the back cavity of the side mold body 10, facilitating rapid heat dissipation from the mold; on the other hand, the multiple heat dissipation grooves 11 reduce the thickness of the side mold body 10 to a certain extent, further improving heat dissipation efficiency. For the casting of large-sized and thick wheel hub blanks, the heat dissipation grooves 11 can effectively improve the heat dissipation efficiency of the side mold body 10, thereby reducing or eliminating the need for cooling air ducts. This improves the existing situation of complex mold piping layout and connections, saves compressed air consumption, effectively improves rim shrinkage defects, and ensures operational efficiency. Furthermore, fewer cooling air ducts reduce wind noise, improving noise pollution in the working environment.

[0022] Preferably, the heat dissipation grooves 11 have a depth of 20-30 mm, a width of 15-25 mm, and a spacing of 20-30 mm between adjacent heat dissipation grooves 11 , thereby improving the heat dissipation efficiency of the heat dissipation grooves 11 while ensuring a certain structural strength of the side mold body 10 .

[0023] The heat dissipation groove 11 can be formed in the back cavity of the side mold body 10 by milling, realizing the modification of the existing mold. The heat dissipation groove 11 can also be cast integrally with the side mold body 10 during production, which can save the subsequent machining process and reduce the mold processing cost.

[0024] In order to strengthen the structural strength of the side mold body 10, the back cavity of the side mold body 10 is provided with a reinforcing rib 20. The reinforcing rib 20 is supported in the back cavity of the side mold body 10 along the horizontal direction to avoid the strength of the side mold body 10 being affected by the setting of the heat dissipation groove 11, causing the side mold body 10 to deform, thereby ensuring the structural strength of the side mold body 10 and further ensuring the casting accuracy of the wheel hub blank.

[0025] As a preferred embodiment, a cooling air duct 30 is provided in the back cavity of the side mold body 10 corresponding to the heat dissipation groove 11. Figure 2-3As shown, the cooling duct 30 is provided with a plurality of air outlets 31. These ducts communicate with compressed air, accelerating heat dissipation from the back cavity of the side mold body 10. During operation, compressed air is sprayed through the air outlets 31 into the back cavity of the side mold body 10 and then blown out along the heat dissipation grooves 11, dissipating heat from the back cavity of the side mold body 10. The provision of the cooling duct 30 further improves the heat dissipation efficiency of the mold body, ensuring efficient wheel hub production.

[0026] Preferably, the air outlet 31 is arranged at a certain inclination angle relative to the back cavity of the side mold body 10, so that the compressed air forms a stable airflow and efficiently circulates along the back cavity of the side mold body 10. More preferably, the inclination angle of the air outlet 31 relative to the vertical direction is 40-60 degrees.

[0027] The above disclosure is only a specific embodiment of the present invention, but the present invention is not limited thereto. For ordinary technicians in this field, without departing from the principle of the present invention, any deformation made should be deemed to be protected by the present invention.

Claims

1. A hub side mold self-heating and strong cooling structure, characterized by: It comprises a side mold body (10), a plurality of heat dissipation grooves (11) are provided at intervals on the back cavity of the side mold body (10), and the heat dissipation grooves (11) are opened along the vertical direction of the side mold body (10); A cooling air duct (30) is provided in the back cavity of the side mold body (10) corresponding to the heat dissipation groove (11), and a plurality of air outlets (31) are provided on the cooling air duct (30), and the cooling air duct (30) is connected to compressed air; The air outlet (31) is arranged at a certain inclination angle relative to the back cavity of the side mold body (10), so that the compressed air forms a stable airflow and circulates efficiently along the back cavity of the side mold body (10).

2. The hub side mold self-heating and strong cooling structure according to claim 1, characterized in that: The heat dissipation groove (11) has a depth of 20-30 mm and a width of 15-25 mm, and the spacing between adjacent heat dissipation grooves (11) is 20-30 mm.

3. The hub side mold self-heating and strong cooling structure according to claim 1, characterized in that: The heat dissipation groove (11) is formed in the back cavity of the side mold body (10) by milling.

4. The hub side mold self-heating and strong cooling structure according to claim 1, characterized in that: The heat dissipation groove (11) and the side mold body (10) are integrally cast.

5. The hub side mold self-heating and strong cooling structure according to claim 1, characterized in that: The back cavity of the side mold body (10) is provided with a reinforcing rib plate (20), and the reinforcing rib plate (20) is supported in the back cavity of the side mold body (10) along the horizontal direction.

6. The hub side mold self-heating and strong cooling structure according to claim 1, characterized in that: The inclination angle of the air outlet (31) relative to the vertical direction is 40-60°.

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