Split type scratch-proof side die structure

Abstract

The utility model relates to the field of aluminum alloy hub casting molds, and discloses a split type scratch-proof side mold structure which comprises a side mold body, a mold splitting opening is formed in the side mold body, the mold splitting opening obliquely penetrates through the side mold body corresponding to a molded line of a spoke root part and a rim part of a hub blank, a split module is connected in the mold splitting opening in a sliding mode, and the split module is connected with the side mold body in a sliding mode. And the split module can not act synchronously with the side die body. When the side die is used, the split die blocks can move backwards in advance prior to the side die body, and move backwards towards the inclined upper part under the guide action of the inclined die splitting openings, so that the friction action between the split die blocks and the hub root part and the rim part of a hub blank is reduced, and the problem that the hub blank is damaged due to the bending molded line structure of the spoke root part and the rim part is solved. And the problems that the root part of the spoke and the rim part are scratched and the blank is deformed are solved. Through the arrangement of the cooling insert and the cooling water channel, the temperature conduction of the spoke root of the hub blank is accelerated, the cooling efficiency of the spoke root is improved, and the problem that the spoke root is prone to shrinkage porosity is solved.

Description

Technical Field

[0001] This utility model relates to the field of aluminum alloy wheel hub casting mold technology, and in particular to a split anti-scratch side mold structure. Background Technology

[0002] After the aluminum alloy wheel hub blank is cast in the mold, the mold opens to eject the wheel hub blank. During mold opening, the side mold cylinder pulls the side mold to open in all directions, causing the side mold to detach from the wheel hub blank. During this process, because the spoke roots and rims of the wheel hub blank have bent profiles, the horizontal outward movement of the side mold can easily cause scratches on the spoke roots and rims, and even lead to blank deformation, affecting the quality of the blank after casting. Simultaneously, the spoke roots of the wheel hub blank are a hot spot area during the casting process; due to the high pouring thickness and slow cooling rate, shrinkage defects are prone to occur, affecting the casting quality of the wheel hub. Currently, there is a lack of solutions in the existing technology that significantly improve these problems.

[0003] In view of this, developing a new type of split-type anti-scratch edge mold structure for practical production is an urgent problem to be solved. Utility Model Content

[0004] The purpose of this utility model is to provide a split anti-scratch side mold structure to address the above-mentioned problems, thereby solving the problem that existing side molds are prone to causing scratches and deformations on the spoke root and rim of wheel hub blanks during use, and at the same time solving the problem that existing side molds do not provide sufficient cooling for the spoke root, which easily leads to shrinkage defects.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A split-type anti-scratch side mold structure includes a side mold body with a parting opening. The parting opening obliquely penetrates the side mold body along the profile lines of the spoke root and rim of the wheel hub blank. A split module is slidably connected inside the parting opening, so that the split module can move independently of the side mold body. The front end of the split module is made according to the profile of the spoke root and rim of the wheel hub blank.

[0007] Preferably, the tail end of the split module is connected to a mold-separating cylinder, which serves as the power source for the split module to move forward and close the mold and move backward and open the mold within the mold-separating opening. The telescopic end of the mold-separating cylinder is connected to the split module, and its tail end is connected to the side mold body.

[0008] Preferably, the split module is provided with a cooling insert, which is made of a material with a thermal conductivity higher than that of mold steel, in order to accelerate the temperature conduction at the root of the wheel hub blank spoke.

[0009] Preferably, the split module has a cooling water channel to improve the cooling efficiency of the split module. The cooling water channel includes an inlet and an outlet that are respectively connected to the split module.

[0010] Preferably, the tail end of the split module is provided with a positioning structure for positioning and connecting the split module and the side mold body. The positioning structure includes a wedge-shaped positioning block that is fixedly connected to the split module. A positioning groove is opened on the side mold body corresponding to the wedge-shaped positioning block, and the wedge-shaped positioning block and the positioning groove are inserted into each other.

[0011] Preferably, the positioning structure further includes a limiting plate disposed at the tail end of the split module to limit the travel of the split module within the parting opening.

[0012] The beneficial effects of this utility model are as follows: By setting a split module on the side mold body, and enabling the split module to move independently of the side mold body, during mold opening, the split module and the side mold body detach independently from the wheel hub blank, with the split module moving backwards before the side mold body. Under the guidance of the inclined mold opening, the split module moves backwards obliquely upwards, reducing friction with the wheel hub blank's hub root and rim areas. This improves the problem of scratches and blank deformation at the hub root and rim areas caused by the bent profile structure of the wheel spoke root and rim areas during the horizontal outward movement of the side mold. The cooling inserts and cooling channels accelerate the temperature conduction at the hub blank's spoke root, improving the cooling efficiency at the spoke root and mitigating the problem of shrinkage defects easily occurring at the spoke root area. Simultaneously, the cooling inserts and cooling channels inside the split module provide targeted cooling only to the hub blank's spoke root, effectively avoiding interference with the cooling rate of other areas of the mold and preventing issues affecting process stability. Attached Figure Description

[0013] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a three-dimensional structural diagram of the present invention in the mold-opening state.

[0016] Figure 3 for Figure 2 Sectional view.

[0017] Figure 4 This is a plan view of the split module in this utility model.

[0018] In the diagram: 10--Side mold body; 11--Mold parting port; 20--Separated module; 21--Mold parting cylinder; 22--Cooling insert; 23--Cooling water channel; 24--Water inlet; 25--Water outlet; 26--Wedge-shaped positioning block; 27--Limiting plate. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] like Figure 1-4 As shown, a split-type anti-scratch side mold structure includes a side mold body 10. The side mold body 10 has a mold opening 11. The mold opening 11 obliquely penetrates the side mold body 10 according to the profile lines of the spoke root and rim of the wheel hub blank. A split module 20 is slidably connected inside the mold opening 11, so that the split module 20 can move independently of the side mold body 10. The front end of the split module 20 is made according to the profile of the spoke root and rim of the wheel hub blank. During mold opening, the split module 20 and the side mold body 10 detach independently from the wheel hub blank one after the other. The split module 20 moves backward in advance before the side mold body 10. Under the guidance of the inclined mold opening 11, the split module 20 moves backward obliquely upward, which reduces the friction with the wheel hub blank at the wheel hub root and rim. This improves the problem of scratches and blank deformation at the wheel hub root and rim caused by the bent profile structure at the wheel hub root and rim when the side mold moves horizontally outward.

[0021] Preferably, the tail end of the split module 20 is connected to a mold-separating cylinder 21, which serves as the power source for the split module 20 to move forward and close the mold within the mold-separating opening 11. Specifically, the telescopic end of the mold-separating cylinder 21 is connected to the split module 20, and its tail end is connected to the side mold body 10. When closing the mold, the mold-separating cylinder 21 pushes the split module 20 forward to its limit position, responsible for forming the spoke root and rim of the wheel hub blank; when opening the mold, the mold-separating cylinder 21 retracts and pulls the split module 20 backward, preferentially separating it from the wheel hub blank.

[0022] Preferably, the split module 20 is provided with a cooling insert 22, which is made of a material with a higher thermal conductivity than mold steel, such as copper alloy, to accelerate the temperature conduction at the root of the wheel hub blank spokes, improve the cooling efficiency at the root of the spokes, and mitigate the problem of shrinkage defects that easily occur at the root of the spokes. Simultaneously, the cooling insert 22 located inside the split module 20 provides targeted cooling only to the root of the wheel hub blank spokes, effectively avoiding interference with the cooling rate of other areas of the mold and preventing issues affecting process stability.

[0023] Preferably, such as Figure 4 As shown, the split module 20 has a cooling water channel 23 inside, which is used to improve the cooling efficiency of the split module 20. The cooling water channel 23 includes an inlet 24 and an outlet 25 that are respectively connected to the split module 20. In use, the cooling water source is connected to the inlet 24 to supply cooling water to the cooling water channel 23 to cool the split module 20, and then the water is discharged from the split module 20 through the outlet 25.

[0024] Preferably, such as Figure 4 As shown, the tail end of the split module 20 is provided with a positioning structure for positioning and connecting the split module 20 with the side mold body 10. The positioning structure includes a wedge-shaped positioning block 26 fixedly connected to the split module 20, and a positioning groove corresponding to the wedge-shaped positioning block 26 is provided on the side mold body 10. The wedge-shaped positioning block 26 is inserted into the positioning groove. In use, the mold-separating cylinder 21 pushes the split module 20 into the mold-separating opening 11, and the wedge-shaped positioning block 26 gradually extends into the positioning groove, forming a positioning effect on the split module 20, improving the positioning accuracy between the split module 20 and the side mold body 10, thereby ensuring the casting quality of the wheel hub blank.

[0025] Furthermore, the positioning structure also includes a limiting plate 27 disposed at the tail end of the split module 20, used to limit the split module 20 from over-travel into the cavity within the mold parting opening 11, thus preventing defective products. During mold closing, the mold parting cylinder 21 pushes the split module 20 into the mold parting opening 11. When it reaches the predetermined position, the limiting plate 27 will contact the outer wall of the side mold body 10, restricting the split module from continuing to move forward.

[0026] The above-disclosed embodiments are merely specific examples of this utility model, but this utility model is not limited thereto. For those skilled in the art, any modifications made without departing from the principle of this utility model should be considered as protected by this utility model.

Claims

1. A split-type anti-scratch edge mold structure, characterized in that: The mold includes a side mold body (10), on which a mold opening (11) is provided. The mold opening (11) is obliquely penetrating the side mold body (10) corresponding to the spoke root and rim part of the wheel hub blank. A split module (20) is slidably connected inside the mold opening (11), so that the split module (20) can move synchronously with the side mold body (10). The front end of the split module (20) is made according to the spoke root and rim part of the wheel hub blank.

2. The split-type anti-scratch edge mold structure according to claim 1, characterized in that: The tail end of the split module (20) is connected to a mold-separating cylinder (21), which serves as the power for the split module (20) to move forward and close the mold and move backward to open the mold in the mold-separating opening (11). The telescopic end of the mold-separating cylinder (21) is connected to the split module (20), and its tail end is connected to the side mold body (10).

3. The split-type anti-scratch edge mold structure according to claim 1, characterized in that: The split module (20) is provided with a cooling insert (22), which is made of a material with a thermal conductivity higher than that of mold steel, in order to accelerate the temperature conduction at the root of the wheel hub blank spoke.

4. The split-type anti-scratch edge mold structure according to claim 1, characterized in that: The split module (20) is provided with a cooling water channel (23) to improve the cooling efficiency of the split module (20). The cooling water channel (23) includes an inlet (24) and an outlet (25) that are respectively connected to the split module (20).

5. A split-type anti-scratch edge mold structure according to claim 1, characterized in that: The tail end of the split module (20) is provided with a positioning structure for positioning connection between the split module (20) and the side mold body (10). The positioning structure includes a wedge-shaped positioning block (26) fixedly connected to the split module (20). A positioning groove is provided on the side mold body (10) corresponding to the wedge-shaped positioning block (26). The wedge-shaped positioning block (26) is inserted into the positioning groove.

6. A split-type anti-scratch edge mold structure according to claim 5, characterized in that: The positioning structure also includes a limiting plate (27) disposed at the tail end of the split module (20) to limit the travel of the split module (20) within the mold opening (11).

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