Alloy mold

Abstract

The utility model relates to the field of dies, in particular to an alloy die which comprises a die body and a metal layer, the die body is in a convex shape, the die is formed by compounding aluminum alloy sheets, the metal layer covers the outer surface of the die body, and the aluminum alloy sheets are exposed out of the bottom of the die body. The utility model aims to solve the technical problem of slow heat dissipation of the existing mold.

Description

Technical Field

[0001] This utility model relates to the field of molds, and specifically discloses an alloy mold. Background Technology

[0002] Vacuum forming is a process that uses vacuum to draw and soften plastic sheets onto a mold surface, where they are then cooled and shaped to obtain the final product. It is widely used across various industries. Currently, the industry primarily uses plaster molds and copper molds, but both have significant drawbacks:

[0003] 1. Plaster molds are mainly composed of calcium sulfate, which has low bending strength, poor wear resistance, and is easily crushed after being exposed to high temperatures. Therefore, they need to be replaced frequently, resulting in high mold costs and poor transparency of the produced products.

[0004] 2. Copper molds are prone to cracking, require plaster filling, are easily damaged, do not dissipate heat, and electroplating can easily cause environmental pollution, resulting in products with low transparency.

[0005] The two types of molds mentioned above have obvious drawbacks, so there is an urgent need for a mold that can dissipate heat quickly, has high product transparency, and a long service life. Utility Model Content

[0006] In view of this, the purpose of this utility model is to provide an alloy mold to solve the technical problem of slow heat dissipation in existing molds.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] An alloy mold includes a mold body and a metal layer. The mold body is convex in shape and is formed by pressing or bonding aluminum alloy sheets. The metal layer covers the outer surface of the mold body, with the aluminum alloy sheets exposed at the bottom. This design employs a mold body + metal layer structure. The mold body is formed by pressing aluminum alloy sheets, and the pressed mold body has dense pores inside, significantly improving its heat dissipation. During the vacuum forming process, high negative pressure draws plastic onto the mold for shaping. The high negative pressure also draws away heat from the mold body during air extraction, further improving the mold's heat dissipation efficiency and keeping it within an ideal range over a long period. This mold design greatly improves production efficiency and significantly reduces production costs.

[0009] Optionally, the thickness of the metal layer is 0.5-2mm. This thickness of the metal layer ensures both the strength of the mold and sufficient heat transfer efficiency, allowing heat to be quickly transferred into the mold body and then dissipated.

[0010] Optionally, the aluminum alloy sheets have a length of 1-5 mm, a width of 0.2-1 mm, and a thickness of 0.05-0.3 mm. The aluminum alloy sheets are all relatively small, which allows for an increase in the number of sheets and the spacing between them, thus improving heat dissipation efficiency.

[0011] Optionally, the mold body is provided with a plurality of heat dissipation holes, which extend upward from the mold body. The heat dissipation holes can further improve heat dissipation efficiency.

[0012] Alternatively, the heat dissipation holes are angled towards the outer side of the mold body. The angled heat dissipation holes are longer and cover a larger area.

[0013] Optionally, the distance between the top of the heat dissipation hole and the top of the mold body is greater than 20% of the height of the mold body. Limiting the height of the heat dissipation hole can ensure the strength of the mold.

[0014] Optionally, the diameter of the heat dissipation holes is less than 2 mm. Limiting the diameter of the heat dissipation holes can ensure the strength of the mold.

[0015] The working principle and beneficial effects of this solution are as follows:

[0016] This solution changes the current situation of using a single material for mold structure, transforming the single pure copper mold, alloy mold, etc. into a mold body + metal layer structure. The mold body is made of aluminum alloy sheet composite, which has sufficient strength, high heat dissipation efficiency, good thermal properties, and high temperature resistance. The metal layer is an alloy material, which has the advantages of high heat transfer efficiency and high strength. The combination of the two can solve the technical problem of slow heat dissipation of molds in the existing technology.

[0017] Other advantages, objectives, and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination and study, or may be learned from practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of Embodiment 1;

[0019] Figure 2 This is a structural schematic diagram from an upward-looking perspective of Embodiment 1;

[0020] Figure 3 This is a schematic diagram of the structure of Example 2;

[0021] Figure 4 This is a longitudinal sectional view of Example 3;

[0022] Figure 5This is a schematic diagram of the reinforcing frame in Example 3.

[0023] The following are labeled in the attached diagram: 1. Metal layer; 2. Mold body; 3. Heat dissipation hole; 4. Reinforcing frame. Detailed Implementation

[0024] The following detailed description illustrates the specific implementation method:

[0025] Example 1

[0026] An alloy mold, such as Figure 1 , Figure 2 As shown, it includes a mold body 2 and a metal layer 1.

[0027] The mold body 2 is convex in shape, and the mold is formed by pressing aluminum alloy sheet. The length of the aluminum alloy sheet is 2-2.5 mm, the width is 0.3-0.6 mm, and the thickness is 0.07 mm.

[0028] Metal layer 1 covers the outer surface of mold body 2, and aluminum alloy sheet is exposed at the bottom of mold body 2. The thickness of metal layer 1 is 1.5 mm.

[0029] In practice:

[0030] During vacuum forming, the high negative pressure draws in the air near the mold, causing the plastic sheet to quickly adhere to the alloy mold. At the same time, because the mold body 2 has several heat dissipation holes 3 and gaps inside, the air inside is also instantly drawn away, thereby reducing the temperature of the entire alloy mold and playing a role in rapid heat dissipation.

[0031] Example 2

[0032] like Figure 3 As shown, the mold body 2 is convex in shape, and the mold is formed by pressing aluminum alloy sheet. The length of the aluminum alloy sheet is 2-2.5 mm, the width is 0.3-0.6 mm, and the thickness is 0.07 mm.

[0033] Metal layer 1 covers the outer surface of mold body 2, and aluminum alloy sheet is exposed at the bottom of mold body 2. The thickness of metal layer 1 is 1.5 mm.

[0034] The mold body 2 has several heat dissipation holes 3 with a diameter of 1 mm. The heat dissipation holes 3 are arranged in a circular array, extending upward from the mold body and sloping towards the outer side of the mold body 2. The distance between the top of the heat dissipation hole 3 and the top of the mold body 2 is greater than 20% of the height of the mold body 2.

[0035] Example 3

[0036] like Figure 4 , Figure 5As shown, the difference between Example 3 and Example 1 is that the aluminum alloy sheet is bent into shape. After the aluminum alloy sheet is manufactured, it is rolled once with a steel roller, which bends the aluminum alloy sheet. When the bent aluminum alloy sheet is pressed, part of the sheet is folded. Folding increases the gap and improves the heat dissipation effect.

[0037] A reinforcing frame 4 is embedded in the mold body 2. The reinforcing frame 4 is formed by several reinforcing plates arranged in a crisscross pattern. The height of the reinforcing frame 4 is 2-5mm, and the reinforcing plates are 1-2mm away from the bottom of the mold body 2. There is still a significant difference in strength between the mold body 2 formed by compression molding and the mold formed by casting. In this embodiment, the addition of the reinforcing frame 4 can improve the overall strength of the mold body 2. For vacuum forming, the strength is sufficient.

[0038] The above description is merely an embodiment of this utility model, and common knowledge such as specific structures and characteristics in the solution is not described in detail here. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model, and these should also be considered within the protection scope of this utility model. These modifications and improvements will not affect the effectiveness of the implementation of this utility model or its practicality.

Claims

1. An alloy mold, characterized in that: It includes a mold body and a metal layer. The mold body is convex in shape and is made of aluminum alloy sheet composite. The metal layer covers the outer surface of the mold body and the bottom of the mold body exposes the aluminum alloy sheet.

2. The alloy mold according to claim 1, characterized in that: The thickness of the metal layer is 0.5-2 mm.

3. The alloy mold according to claim 2, characterized in that: The aluminum alloy sheet has a length of 1-5mm, a width of 0.2-1mm, and a thickness of 0.05-0.3mm.

4. An alloy mold according to claim 3, characterized in that: The mold body has several heat dissipation holes that extend upward from the mold body.

5. An alloy mold according to claim 4, characterized in that: The heat dissipation holes are angled toward the outside of the mold body.

6. An alloy mold according to claim 5, characterized in that: The distance between the top of the heat dissipation hole and the top of the mold body is greater than 20% of the height of the mold body.

7. An alloy mold according to claim 6, characterized in that: The diameter of the heat dissipation hole is less than 2mm.

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