Double-hole type small-area profile mold

Abstract

The utility model relates to a double-hole type small-area profile mold. Comprising an upper die and a lower die, a first die core head and a second die core head are arranged in the center of the upper die side by side, a first connecting support is arranged on the side, away from the second die core head, of the first die core head, and a second connecting support is arranged on the side, away from the first die core head, of the second die core head; a bridge opening type support is arranged between the first mold core head and the second mold core head, a sinking type cavity and a forming cavity are formed in the center of the lower mold, the sinking type cavity and the forming cavity are coaxially arranged, and the sinking type cavity is arranged above the forming cavity. By arranging the first connecting support and the second connecting support, it is guaranteed that the upper die core heads have enough supporting strength, meanwhile, the bridge opening type support is arranged between the two core heads, and the flow speed of molten metal between the core heads is increased while the supporting strength of the core heads is guaranteed. According to the utility model, die materials can be saved, and the production efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of profile processing, in particular to a double-hole small-area profile die. Background Art

[0002] In recent years, aluminum alloys have been widely used in the automotive field. With the vigorous promotion and application of sustainable development, automobile lightweighting has become a trend of automobile progress, especially some small-hole and small-area aluminum profiles are more widely used in automobiles. The mold for processing small-hole and small-area aluminum profiles is equipped with multiple corresponding core heads. During the processing of traditional molds, the mold core head will be deformed due to insufficient support strength, resulting in eccentricity of the profile. Secondly, due to the provision of multiple core heads, the flow rate of the molten metal between the core heads will be different from the flow rate on both sides of the core heads, affecting production efficiency and the quality of the profile. Summary of the invention

[0003] The utility model provides a double-hole small-area profile die to solve the eccentricity problem of small-area profiles with small holes mentioned in the background technology.

[0004] The technical solution of the utility model is as follows: a double-hole small-area profile mold, comprising an upper mold and a lower mold, a first mold core head and a second mold core head are arranged side by side in the center of the upper mold, a first connecting support is arranged on the side of the first mold core head away from the second mold core head, a second connecting support is arranged on the side of the second mold core head away from the first mold core head, a bridge hole type support is arranged between the first mold core head and the second mold core head, a sunken cavity and a molding cavity are arranged in the center of the lower mold, the sunken cavity is arranged coaxially with the molding cavity and the sunken cavity is arranged above the molding cavity.

[0005] Furthermore, a limited cavity is provided on the edge of the lower mold, and a limited step is correspondingly provided on the upper mold.

[0006] Furthermore, a positioning column is arranged in the limiting cavity, and a positioning hole is correspondingly arranged in the upper mold.

[0007] Furthermore, the upper die is provided with a threaded through hole, the lower die is provided with a corresponding threaded blind hole, and the bolt passes through the threaded through hole and is threadedly connected with the threaded blind hole.

[0008] Furthermore, the first connecting support and the second connecting support each include two supporting legs, and the supporting legs on the same side are arranged at an angle therebetween.

[0009] Advantages of the present utility model: By providing the first connection support and the second connection support, a four-bridge connection support is formed in the present utility model, ensuring sufficient support strength for the upper die core head. Meanwhile, a bridge-hole type support is provided between the two core heads, which increases the flow rate of the molten metal between the core heads while ensuring the support strength of the core heads. The present utility model can save die materials, and the profiles formed by using this die have stable dimensions and greatly improved production efficiency. Description of the Drawings

[0010] Figure 1 It is a schematic cross-sectional structure view of the upper die of the present utility model.

[0011] Figure 2 It is a top view of the upper die of the present utility model.

[0012] Figure 3 It is a schematic cross-sectional structure view of the lower die of the present utility model.

[0013] Figure 4 It is a top view of the lower die of the present utility model. Detailed Embodiments

[0014] In order to enable those skilled in the art to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. The described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0015] In the embodiments of the present utility model, Figure 1 and Figure 3 are schematic structural views provided according to the specific structure of a double-hole small-area profile die of the present utility model. As shown in Figure 1 and Figure 3 shown, the present utility model includes an upper die 1 and a lower die 2. The first die core head 8 and the second die core head 9 are arranged side by side at the center of the upper die 1. As shown in Figure 2 shown, a first connection support 4 is provided on the side of the first die core head 8 facing away from the second die core head 9, a second connection support 6 is provided on the side of the second die core head 9 facing away from the first die core head 8, a bridge-hole type support 10 is provided between the first die core head 8 and the second die core head 9. A sunken cavity 3 and a forming cavity 12 are provided at the center of the lower die 2. The sunken cavity 3 and the forming cavity 12 are coaxially arranged and the sunken cavity 3 is arranged above the forming cavity 12.

[0016] In an embodiment of the present utility model, as shown in Figure 3As shown, a limiting cavity 13 is provided at the edge of the lower die 2, and a corresponding limiting step 11 is provided on the upper die 1. A positioning post 14 is provided in the limiting cavity 13, and a corresponding positioning hole 7 is provided on the upper die 1.

[0017] In an embodiment of the present utility model, as Figure 2 and Figure 4 shown, a threaded through hole 5 is provided through the upper die 1, and a corresponding threaded blind hole 15 is provided in the lower die 2. A bolt passes through the threaded through hole 5 and is threadedly connected to the threaded blind hole 15.

[0018] In an embodiment of the present utility model, as Figure 2 shown, both the first connection support and the second connection support each include two support feet, and the support feet on the same side are arranged at an angle.

[0019] The main purpose of the present utility model is to solve the problem of eccentricity of two small holes in the profile. First, considering that the area of this profile is small and there are two small holes, the outer shape of the mold adopts an outer shape specification of 118×90.

[0020] The mold is composed of an upper die 1 and a lower die 2. The two small core heads on the upper die of the mold adopt a four-bridge connection support method to ensure that the two small core heads on the mold have sufficient strength support. Considering that the flow rate between the two small core heads on the mold is slower than that on both sides, the middle bridge-shaped support is deepened, so that the flow rate in the cavity remains uniform. The lower die of the mold adopts a sunken cavity, so that the flowing material transitions to the forming cavity through the sunken cavity, making the size more stable.

[0021] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solutions of the present utility model and are not restrictive. Although the present utility model has been described in detail with reference to the examples, those of ordinary skill in the art should understand that the technical solutions of the present utility model can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present utility model, and they should all be covered within the scope of the claims of the present utility model.

Claims

1. A double-hole small-area profile mold, comprising an upper mold (1) and a lower mold (2), characterized in that: A first mold core head (8) and a second mold core head (9) are arranged side by side at the center of the upper mold (1); a first connecting support (4) is arranged on the side of the first mold core head (8) facing away from the second mold core head (9); a second connecting support (6) is arranged on the side of the second mold core head (9) facing away from the first mold core head (8); a bridge hole type support (10) is arranged between the first mold core head (8) and the second mold core head (9); a sunken cavity (3) and a molding cavity (12) are arranged at the center of the lower mold (2); the sunken cavity (3) and the molding cavity (12) are arranged coaxially and the sunken cavity (3) is arranged above the molding cavity (12).

2. The double-hole small-area profile mold according to claim 1, characterized in that: A limiting cavity (13) is provided on the edge of the lower die (2), and a limiting step (11) is correspondingly provided on the upper die (1).

3. The double-hole small-area profile mold according to claim 2, characterized in that: A positioning column (14) is provided in the limiting cavity (13), and a positioning hole (7) is correspondingly provided in the upper die (1).

4. The double-hole small-area profile mold according to claim 1, characterized in that: The upper die (1) is provided with a threaded through hole (5), and the lower die (2) is provided with a corresponding threaded blind hole (15). The bolt passes through the threaded through hole (5) and is threadedly connected to the threaded blind hole (15).

5. The double-hole small-area profile mold according to claim 1, characterized in that: The first connecting support (4) and the second connecting support (6) each comprise two supporting legs, and the supporting legs on the same side are arranged at an angle.

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