One-time forming die for aluminum part production

By setting water inlet holes and vent holes in the aluminum parts production mold, the problems of slow heat dissipation and thermal expansion and contraction of the casting mold are solved, and rapid cooling and precise molding are achieved.

CN224058696UActive Publication Date: 2026-03-31ANHUI CHANGHONG MACHINERY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-18
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

Existing casting molds have poor heat dissipation, which leads to longer casting time, and the thermal expansion and contraction of the molds affects the precision of the castings.

Method used

A one-time molding die was designed. By setting water inlet and vent holes in the die, the coolant and air flow are used to quickly dissipate heat and expel air from the die, preventing the effects of thermal expansion and contraction.

Benefits of technology

This method enables rapid and uniform cooling of the mold, improves the cooling efficiency of the casting, and ensures the precision and quality of the casting.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of dies, and discloses a one-time forming die for aluminum piece production, which comprises a lower die, the top of the lower die is movably connected with an upper die, the bottom of the lower die is fixedly connected with a fixed base, and the lower die comprises a die body. The front and back surfaces of the top of the mold body are movably connected with a connecting piece, lower connecting holes are formed in the positions, close to the two sides, of the top of the connecting piece, water inlet holes are formed in the positions, close to the middle, of the two sides of the front surface of the connecting piece, and water outlet holes are formed in the two sides of the front surface of the connecting piece; the water inlet holes are formed in the positions, close to the middle, of the connecting piece and the mold body, cooling liquid enters the middle position of the mold body from the water inlet holes and leaves from the water outlet holes in the edge after taking away a large amount of heat, so that the inner wall between the mold body and the forming cavity is rapidly and evenly cooled, and rapid cooling of an aluminum casting is facilitated.
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Description

Technical Field

[0001] This utility model relates to the field of mold technology, and more specifically to a one-time forming mold for aluminum parts production. Background Technology

[0002] Aluminum parts refer to components or parts made of aluminum or aluminum alloys. Aluminum is a silvery-white, light metal with a melting point of 660℃ and a boiling point of 2327℃. Aluminum spontaneously forms an oxide film in humid air, which effectively protects the metal from corrosion. Aluminum parts come in various types, including profiles (such as aluminum profiles, aluminum tubes, and aluminum rods), sheets (such as aluminum plates, aluminum foil, and coils), and castings (such as aluminum castings and aluminum granules). These types are processed by various methods such as casting, forging, rolling, and extrusion. Casting requires casting molds, which are essential components of the casting process. These molds include gravity casting molds, high-pressure casting molds (die casting molds), low-pressure casting molds, and extrusion casting molds. Casting molds are one of the most important pieces of equipment in casting production and have a significant impact on the quality of castings.

[0003] During the use of casting molds, the heat from the casting is transferred to the mold. Existing casting molds have poor heat dissipation, which makes the workpiece forming time longer and is not conducive to processing. Secondly, the upper and lower molds of casting molds are usually connected by machine support. During casting, the air between the upper and lower molds can easily cause the gap between the upper and lower molds to increase due to thermal expansion and contraction, which affects the accuracy of the casting. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a one-time forming mold for aluminum parts production, so as to solve the problems existing in the background art.

[0005] This utility model provides the following technical solution: a one-time forming mold for aluminum parts production, including a lower mold, an upper mold movably connected to the top of the lower mold, a fixed base fixedly connected to the bottom of the lower mold, the lower mold including a mold body, connecting members movably connected to the top front and back of the mold body, lower connecting holes opened near the sides of the top of the connecting members, water inlet holes opened near the center of the front sides of the connecting members, and water outlet holes opened on the front sides of the connecting members.

[0006] Furthermore, the upper mold has an injection hole at the top center, a first vent hole at the top front and back near the center, and upper connection holes at the four corners of the top.

[0007] Furthermore, a forming cavity is provided in the middle of the bottom of the upper mold, and upper connecting posts are fixedly connected to the two sides of the bottom front and back of the upper mold near the middle position. The upper connecting posts and the lower connecting holes are mutually compatible.

[0008] Furthermore, a center plate is fixedly connected to the top center of the mold body, and limit blocks are fixedly connected to the top front and back of the center plate, and limit plates are fixedly connected to the top four corners of the center plate.

[0009] Furthermore, the top four corners of the mold body are fixedly connected with lower connecting pillars, which are adapted to the upper connecting holes, and a second vent hole is opened in the middle of the top of the lower connecting pillar.

[0010] Furthermore, a connecting ring groove is provided on the outer side of the lower connecting column, and an air inlet is provided on the front and back of the connecting ring groove. The inner center of the air inlet is connected to the second exhaust hole.

[0011] The technical effects and advantages of this utility model are as follows:

[0012] 1. This utility model has a water inlet hole. Molten metal enters the casting mold through the injection hole in the middle of the top of the upper mold. Heat is dissipated from the center to the surrounding area. By opening water inlets in the connecting parts and near the middle of the mold body, coolant enters the middle of the mold body through the water inlet hole. After taking away a large amount of heat, it leaves through the water outlet hole at the edge, so that the inner wall between the mold body and the forming cavity is cooled quickly and evenly, which is beneficial to the rapid cooling of aluminum castings.

[0013] 2. This utility model has a first vent hole. When the upper mold and the lower mold are connected, the air remaining around the connection between the upper mold and the lower mold enters the lower connecting column through the air inlet hole on the connecting ring groove, and then is discharged from the second vent hole. When the molten metal enters the molding cavity and dissipates heat to cause the air to expand, the air is discharged from the first vent hole, which is conducive to the discharge of air in the casting mold and prevents the thermal expansion and contraction of air from affecting the precision of the aluminum casting. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the lower mold of this utility model.

[0016] Figure 3 This is a cross-sectional structural diagram of the water inlet and water outlet of this utility model.

[0017] Figure 4 This is a schematic diagram of the upper mold of this utility model.

[0018] Figure 5This is a schematic diagram of the bottom structure of the upper mold of this utility model.

[0019] The attached figures are labeled as follows: 1. Lower mold; 101. Mold body; 102. Connector; 103. Lower connecting hole; 104. Water inlet hole; 105. Water outlet hole; 2. Upper mold; 201. Liquid injection hole; 202. First vent hole; 203. Upper connecting hole; 204. Molding cavity; 205. Upper connecting post; 3. Fixed base; 4. Center plate; 401. Limiting block; 402. Limiting plate; 5. Lower connecting post; 501. Second vent hole; 502. Connecting ring groove; 503. Air inlet hole. Detailed Implementation

[0020] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The one-time molding die for aluminum parts production involved in this utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] Reference Figures 1-5 This utility model provides a one-time forming mold for aluminum parts production, including a lower mold 1, an upper mold 2 movably connected to the top of the lower mold 1, and a fixed base 3 fixedly connected to the bottom of the lower mold 1. The lower mold 1 includes a mold body 101, and a connector 102 movably connected to the top front and back of the mold body 101. The connector 102 has lower connecting holes 103 near the sides of its top, water inlet holes 104 near the center of both sides of its front, and water outlet holes 105. Molten metal enters the casting mold through the injection hole 201 in the center of the top of the upper mold 2. Heat is dissipated from the center to the surrounding area. By opening the water inlet holes 104 near the center of the connector 102 and the mold body 101, coolant enters the center of the mold body 101 through the water inlet holes 104, carries away a large amount of heat, and leaves through the edge water outlet holes 105, so that the inner wall between the mold body 101 and the forming cavity 204 is cooled quickly and evenly, which is beneficial for the rapid cooling of the aluminum casting.

[0022] In a preferred embodiment, the upper mold 2 has a liquid injection hole 201 at the top center, a first vent hole 202 at the top front and back near the center, and upper connecting holes 203 at the four corners of the top. When the molten metal enters the molding cavity 204 and dissipates heat to cause the air to expand, the air is discharged from the first vent hole 202, which helps to discharge the air in the casting mold and prevents the thermal expansion and contraction of the air from affecting the accuracy of the casting.

[0023] In a preferred embodiment, a molding cavity 204 is provided in the middle of the bottom of the upper mold 2, and upper connecting posts 205 are fixedly connected to the two sides of the bottom front and back of the upper mold 2 near the middle position. The upper connecting posts 205 and the lower connecting holes 103 are adapted to each other.

[0024] In a preferred embodiment, a center plate 4 is fixedly connected to the top center of the mold body 101, a limiting block 401 is fixedly connected to the top front and back of the center plate 4, and a limiting plate 402 is fixedly connected to the top four corners of the center plate 4.

[0025] In a preferred embodiment, the top four corners of the mold body 101 are fixedly connected with lower connecting posts 5, the lower connecting posts 5 and the upper connecting holes 203 are adapted to each other, and a second vent hole 501 is opened in the middle of the top of the lower connecting posts 5.

[0026] In a preferred embodiment, a connecting ring groove 502 is provided on the outer side of the lower connecting post 5, and an air inlet 503 is provided on the front and back sides of the connecting ring groove 502. The inner center of the air inlet 503 is connected to the second exhaust hole 501. When the upper mold 2 and the lower mold 1 are movably connected, the air remaining around the connection between the upper mold 2 and the lower mold 1 enters the lower connecting post 5 through the air inlet 503 on the connecting ring groove 502, and then is discharged through the second exhaust hole 501, which helps to reduce the air in the casting mold.

[0027] The working principle of this utility model is as follows: When the upper mold 2 and the lower mold 1 are connected, the groove around the forming cavity 204 cooperates with the limiting block 401 and the limiting plate 402 to limit the movement. The upper connecting column 205 and the lower connecting hole 103 cooperate to connect and fix each other, and the lower connecting column 5 and the upper connecting hole 203 cooperate to connect and fix each other. The air remaining around the connection between the upper mold 2 and the lower mold 1 enters the lower connecting column 5 through the air inlet 503 on the connecting ring groove 502, and then is discharged through the second exhaust hole 501, which helps to reduce the air in the casting mold. When the molten metal enters the forming cavity 204, it dissipates heat and causes the residual air to expand. During expansion, air is discharged from the first vent 202, which helps to expel air from the casting mold and prevents the thermal expansion and contraction of air from affecting the precision of the casting. Molten metal enters the casting mold through the injection hole 201 at the top center of the upper mold 2. Heat is dissipated from the center to the surrounding area. By opening water inlet holes 104 near the center of the connector 102 and the mold body 101, coolant enters the center of the mold body 101 through the water inlet holes 104. After carrying away a large amount of heat, it leaves through the edge water outlet holes 105, which allows the inner wall between the mold body 101 and the forming cavity 204 to cool quickly and evenly, which is beneficial for the rapid cooling of the aluminum casting.

[0028] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A disposable forming mold for the production of aluminum pieces, comprising a lower mold (1), characterized in that: The top of the lower mold (1) is movably connected with an upper mold (2), and the bottom of the lower mold (1) is fixedly connected with a fixed base (3), the lower mold (1) comprises a mold body (101), the top front and back surface of the mold body (101) is movably connected with a connecting piece (102), the top of the connecting piece (102) is provided with a lower connecting hole (103) near the both sides, the front of the connecting piece (102) is provided with a water inlet hole (104) near the both sides of the middle part, and the front of the connecting piece (102) is provided with a water outlet hole (105) on both sides.

2. A disposable forming mold for aluminum product according to claim 1, characterized in that: The top of the upper mold (2) is provided with a liquid injection hole (201) in the middle part, the top of the upper mold (2) is provided with a first exhaust hole (202) near the middle part of the front and back surface, and the top of the upper mold (2) is provided with an upper connecting hole (203) at the four corners.

3. A disposable forming mold for the production of aluminum pieces according to claim 2, characterized in that: The bottom of the upper mold (2) is provided with a forming cavity (204) in the middle part, and the bottom of the upper mold (2) is fixedly connected with an upper connecting column (205) near the both sides of the middle part of the front and back surface, the upper connecting column (205) and the lower connecting hole (103) are matched with each other.

4. The disposable forming mold for producing an aluminum member according to claim 1, characterized by: The top of the mold body (101) is fixedly connected with a center plate (4) in the middle part, the top of the center plate (4) is fixedly connected with a limiting block (401) on the front and back surface, and the top of the center plate (4) is fixedly connected with a limiting plate (402) at the four corners.

5. A disposable forming mold for producing an aluminum piece according to claim 1, characterized in that: The top of the mold body (101) is fixedly connected with a lower connecting column (5) at the four corners, the lower connecting column (5) and the upper connecting hole (203) are matched with each other, and the top of the lower connecting column (5) is provided with a second exhaust hole (501) in the middle part.

6. A disposable forming mold for the production of aluminum pieces according to claim 5, characterized in that: The outer side of the lower connecting column (5) is provided with a connecting ring groove (502), the front and back surface of the connecting ring groove (502) is provided with an air inlet hole (503), and the inside of the air inlet hole (503) is in communication with the second exhaust hole (501).