Pouring cup structure of hub casting mold

Abstract

The utility model relates to the technical field of hub casting, and discloses a sprue cup structure of a hub casting mold, which comprises a sprue cup body, and a heat preservation structure is arranged on the outer wall of the sprue cup body corresponding to a cooling structure of the casting mold and is used for isolating the cooling effect of the cooling structure of the casting mold on the sprue cup body. According to the pouring cup, the heat preservation structure is arranged corresponding to the mold cooling structure, so that the cooling effect of the mold cooling structure on the pouring cup body is effectively isolated, and the cooling strength of the cooling structure on the pouring cup body is reduced, so that the situation that the part of the pouring cup body is cooled and solidified in advance due to poor cooling is avoided; and therefore, the casting quality of products is ensured. Through the application of the cooling structure, the bad cooling of the pouring cup caused by the cooling structure is effectively relieved in the production efficiency improvement process, so that the cooling structure can fully play a role in cooling the casting mold, and a powerful guarantee is provided for the improvement of the production efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of hub casting, in particular to a sprue cup structure of a hub casting mold. Background Art

[0002] With the rapid development of the automotive industry, as an automotive parts manufacturer, how to increase production and improve efficiency has become a necessary and urgent problem to be solved. At the same time, the shape structure of aluminum alloy wheels is becoming more and more complex, greatly increasing the production difficulty, forcing effective improvement and adjustment in on-site production. The improvement of the casting efficiency of aluminum alloy wheels drives the elevation of the overall temperature field of the casting mold. To improve production efficiency, it is necessary to strengthen the mold cooling efficiency. However, due to the shape of the product, there is not enough space in the mold to place the cooling air or cooling water in a suitable cooling position. Especially for the sprue cup part of the mold, if the air holes are set too far away, it will lead to insufficient cooling intensity in the peripheral area of the sprue cup, and the efficiency cannot be effectively improved. If the air holes are drilled too deep, it will cause premature cooling and solidification in the area close to the sprue cup part, resulting in interception and affecting the feeding effect, bringing great troubles to production, and the scrap rate continues to rise, restricting the improvement of production efficiency.

[0003] Based on this, developing a new sprue cup structure for hub casting molds and applying it to actual production is an urgent problem to be solved at present. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a sprue cup structure of a hub casting mold for the above problems, so as to solve the problem that in the process of increasing production and improving efficiency of the existing hub casting mold, premature cooling and solidification are likely to occur in the sprue cup part, resulting in interception and affecting the feeding effect, restricting the improvement of production efficiency.

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

[0006] A sprue cup structure of a hub casting mold includes a sprue cup body, and a heat preservation structure is arranged on the outer wall of the sprue cup body corresponding to the cooling structure of the casting mold, for isolating the cooling and temperature reduction effect of the cooling structure of the casting mold on the sprue cup body.

[0007] Preferably, the heat preservation structure is a heat preservation cylinder sleeved on the sprue cup body, and the heat preservation cylinder is a cylindrical shell structure formed by enclosing an inner ring, an outer ring, a top wall and a bottom wall, having a hollow inner cavity.

[0008] Preferably, the hollow inner cavity is a vacuum chamber.

[0009] Preferably, the hollow inner cavity is filled with a heat preservation cotton layer.

[0010] Preferably, the heat preservation structure is a heat preservation sleeve sleeved on the outer wall of the sprue cup body corresponding to the mold cooling structure. The heat preservation sleeve is a solid sleeve structure and is made of high-temperature resistant heat preservation material.

[0011] Preferably, a positioning platform for installing and positioning the heat preservation structure is arranged on the sprue cup body, and the outer diameter of the positioning platform is larger than the inner diameter of the heat preservation structure.

[0012] Preferably, the heat preservation structure is a heating wire arranged on the outer wall of the sprue cup body. The heating wire is spirally wound around the outer wall of the sprue cup body corresponding to the mold cooling structure.

[0013] The beneficial effects of the present utility model are as follows:

[0014] The heat preservation structure arranged on the outer wall of the sprue cup body of the present utility model corresponding to the cooling structures such as the air cooling channel and the water cooling channel of the casting mold effectively isolates the cooling effect of the cooling structure of the casting mold on the sprue cup body, reduces the cooling intensity of the cooling structure on the sprue cup body, thereby avoiding problems such as premature cooling and solidification of the sprue cup body part caused by poor cooling and interception of the feeding channel, and ensuring the casting quality of the product. Through the application of the present utility model, during the process of improving production efficiency, the adverse cooling caused by the cooling structure to the sprue cup can be effectively alleviated. Therefore, the cooling structure can fully play the role of cooling and temperature reduction for the casting mold, providing a strong guarantee for the improvement of production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present utility model will be further described in detail below in conjunction with the drawings and specific embodiments.

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

[0017] Figure 2 It is a schematic cross-sectional structural diagram of the first embodiment of the present utility model.

[0018] Figure 3 It is a schematic cross-sectional structural diagram of the second embodiment of the present utility model.

[0019] Figure 4 It is a schematic structural diagram of the third embodiment of the present utility model.

[0020] In the figure: 1 - sprue cup body; 11 - positioning platform; 2 - heat preservation structure; 21 - heat preservation cylinder; 211 - hollow inner cavity; 22 - heat preservation sleeve; 23 - heating wire. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0022] As shown in Figures 1-4 , a sprue cup structure of a wheel hub casting mold includes a sprue cup body 1. A heat preservation structure 2 is provided on the outer wall of the sprue cup body 1 corresponding to cooling structures such as an air cooling channel and a water cooling channel of the casting mold, so as to isolate the cooling effect of the cooling structure of the casting mold on the sprue cup body 1, reduce the cooling intensity of the cooling structure on the sprue cup body 1, thereby avoiding problems such as premature cooling and solidification of the sprue cup body 1 part caused by poor cooling, and interception of the feeding channel, ensuring the casting quality of the product.

[0023] First Embodiment:

[0024] As shown in Figure 2 , as a first implementation manner, the heat preservation structure 2 may be a heat preservation cylinder 21 sleeved on the sprue cup body 1. The heat preservation cylinder 21 is a cylindrical shell structure formed by enclosing an inner ring, an outer ring, a top wall and a bottom wall, having a hollow inner cavity 211. During use, the inner ring of the shell structure is sleeved on the outer wall of the sprue cup body 1, and the heat preservation cylinder 21 that closes the shell structure can slow down the temperature conduction rate through the hollow inner cavity 211, thereby realizing the isolation of the cooling effect of the cold mold cooling structure on the sprue cup body 1.

[0025] Preferably, a vacuum operation is performed on the hollow inner cavity 211 of the heat preservation cylinder 21 to form a vacuum chamber in the hollow inner cavity 211, further reducing the temperature conduction speed and improving the heat preservation effect.

[0026] Preferably, a heat preservation cotton layer is filled in the hollow inner cavity 211 to improve the heat preservation effect. The heat preservation cotton layer can be made of rock wool.

[0027] Second Embodiment:

[0028] As a second embodiment, as shown in Figure 3 , the heat preservation structure 2 is a heat preservation sleeve 22 sleeved on the outer wall of the sprue cup body 1 corresponding to the mold cooling structure. The heat preservation sleeve 22 is a solid sleeve structure. The cooling effect of the mold cooling structure on the sprue cup body 1 is isolated through the heat preservation sleeve 22. The heat preservation sleeve 22 is made of a high-temperature heat preservation material.

[0029] Preferably, a positioning table 11 for installing and positioning the heat preservation structure 2 is provided on the sprue cup body 1. The outer diameter of the positioning table 11 is greater than the inner diameter of the heat preservation structure 2, so that the heat preservation structure 2 can be clamped on the positioning table 11.

[0030] Third Embodiment:

[0031] As Figure 4 shown, as the third embodiment, the heat preservation structure 2 is a heating wire 23 disposed on the outer wall of the sprue cup body 1, and the heating wire 23 is spirally wound around the outer wall of the sprue cup body 1 corresponding to the mold cooling structure. Through the heating effect of the heating wire 23, the temperature of the sprue cup body 1 is actively maintained to resist the adverse cooling of the mold cooling structure on the sprue cup body 1.

[0032] The specific embodiments of the present utility model disclosed above are only for illustration, but the present utility model is not limited thereto. For those of ordinary skill in the art, any modifications made without departing from the principle of the present utility model shall be considered as belonging to the protection scope of the present utility model.

Claims

1. A pouring cup structure of a wheel hub casting mold, characterized in that: It comprises a pouring cup body (1), wherein a heat-insulating structure (2) is provided on the outer wall of the pouring cup body (1) corresponding to the cooling structure of the casting mold, and is used to isolate the cooling effect of the cooling structure of the casting mold on the pouring cup body (1); The heat-insulating structure (2) is a heat-insulating cylinder (21) sleeved on the pouring cup body (1); the heat-insulating cylinder (21) is a cylindrical shell structure having a hollow inner cavity (211) formed by an inner ring, an outer ring, a top wall and a bottom wall; the hollow inner cavity (211) is a vacuum chamber, and the hollow inner cavity (211) is filled with a heat-insulating cotton layer; The pouring cup body (1) is provided with a positioning platform (11) for mounting and positioning the heat-insulating structure (2); the outer diameter of the positioning platform (11) is greater than the inner diameter of the heat-insulating structure (2).

2. The pouring cup structure of a wheel hub casting mold according to claim 1, characterized in that: The heat-insulating structure (2) comprises a heat-insulating sleeve (22) which is sleeved on the outer wall of the pouring cup body (1) in correspondence with the mold cooling structure; the heat-insulating sleeve (22) is a solid sleeve structure; and the heat-insulating sleeve (22) is made of a high-temperature resistant heat-insulating material.

3. The pouring cup structure of a wheel hub casting mold according to claim 1, characterized in that: The heat-insulating structure (2) comprises a heating wire (23) arranged on the outer wall of the pouring cup body (1); the heating wire (23) is spirally wound on the outer wall of the pouring cup body (1) corresponding to the mold cooling structure.

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