Point contact type water cooling structure die

Abstract

A point contact type water cooling structure die comprises a die base, a cooling water channel communicated with a cooling water inlet and outlet pipe is arranged on the die base, a die cooling column is arranged in the cooling water channel, and the cooling water channel is fixedly connected with a cooling water channel cover plate. When water is used as a cooling medium, internal quality defects caused by too high cooling strength are avoided, meanwhile, the cooling strength is moderate, the casting production efficiency can be improved, air cooling use can be reduced, compressed air can be saved, and the production cost can be reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a mould technical field, concretely speaking, a point contact type water cooling structure mould. BACKGROUND

[0002] In recent years, with the rise of new energy vehicles, the automobile market is growing, and the market demand for automobile hubs is also increasing, and higher requirements are put forward for the design and quality of hub products. In the automobile hub products, low pressure casting aluminum alloy hub is widely used because of its high production efficiency, stable yield, low manufacturing cost and other advantages. In the casting of low pressure aluminum alloy hub, filling and solidification are two keys. When filling, the high temperature aluminum alloy melt fills the mold cavity. When solidifying, the aluminum alloy melt solidifies into a blank under the action of the mold and cooling.

[0003] There are two kinds of conventional low pressure aluminum alloy casting cooling methods. One is direct air cooling structure. Generally, the compressed cold air is directly blown to the mold to take away the heat of the mold surface and promote the solidification of the melt. The advantages are that the mold structure is relatively simple, the process adjustment is easy, the disadvantages are that the casting efficiency is low, noise is generated during use, a large amount of electric energy is needed to generate compressed air, and the cost is high. The other is water cooling. Generally, a passage is formed on the mold by drilling, and then cooling water is introduced into the pipeline to realize the cooling of the mold and the melt. The advantages of this method are high cooling efficiency, high casting efficiency, no noise during use, and more energy-saving compared with air cooling. However, due to the high cooling efficiency and fast cooling speed of water cooling, in order to avoid affecting the sequential solidification of the melt, leading to product quality defects, the position with thin wall thickness cannot be used. CONTENT OF THE UTILITY MODEL

[0004] Therefore, the utility model aims at providing a point contact type water cooling structure mould, which can improve the casting efficiency and reduce the manufacturing cost under the premise of ensuring the casting quality of aluminum alloy hub.

[0005] To achieve the above-mentioned purpose, the technical scheme of the utility model is as follows:

[0006] A point contact type water cooling structure mould, comprising a mold base, a cooling water channel communicating with a cooling water inlet and outlet pipe is arranged on the mold base, a mold cooling column is arranged in the cooling water channel, and the cooling water channel is fixedly connected with a cooling water channel cover plate.

[0007] In some embodiments, the cooling water channel is provided with a counterbore matched with the diameter of the mold cooling column, and the mold cooling column is fixedly installed in the counterbore.

[0008] In some embodiments, the mold cooling column is welded to the cooling water channel.

[0009] In some embodiments, the material of the mold cooling column comprises stainless steel.

[0010] In some embodiments, the material of the mold cooling column comprises copper.

[0011] In some embodiments, the material of the mold cooling column comprises aluminum alloy.

[0012] In some embodiments, the mold cooling column comprises a cuboid mold cooling column and / or a prism mold cooling column and / or a spherical mold cooling column.

[0013] Compared with the prior art, the point contact type water cooling structure mold has the following advantages:

[0014] The utility model discloses a point contact type water cooling structure mold with cooling efficiency between air cooling and water cooling. This patent sets up cooling column on one side of mold cooling device, and arranges a small water channel outside the cooling column, so that water cooling needs to be conducted to the mold and aluminum alloy melt through the cooling column, which weakens the water cooling efficiency, avoids the melt in the thin wall position from solidifying in advance to cause the flow to be cut off, and influences the casting quality. The cooling strength is close to the level of air cooling, can replace compressed air, improves the casting efficiency, and saves production cost at the same time. BRIEF DESCRIPTION OF DRAWINGS

[0015] The drawings constituting a part of the utility model are used to provide further understanding of the utility model, and the illustrative embodiment of the utility model and the explanation thereof are used to explain the utility model, and do not constitute improper limitation to the utility model. In the drawings:

[0016] Fig. 1 It is a schematic diagram of a point contact type water cooling structure mold of the utility model.

[0017] Fig. 2 It is a water inlet and outlet structure schematic diagram of a point contact type water cooling structure mold of the utility model.

[0018] Fig. 3 It is a mold water cooling column structure schematic diagram of a point contact type water cooling structure mold of the utility model.

[0019] Explanation of the drawings

[0020] 1. Mold drag, 2. Cooling water channel, 3. Mold cooling column, 4. Cooling water channel cover plate, 5. Cooling water inlet and outlet pipe. DETAILED DESCRIPTION

[0021] It should be explained that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict.

[0022] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings and embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] The following is for reference. Figs. 1 to 3 The point-contact water-cooled structural mold of this utility model is described in conjunction with the embodiments.

[0024] A point-contact water-cooled structural mold, Fig. 1 In the design, several mold cooling pillars 3 are designed at the locations on the bottom mold 1 where cooling is required. The material of the mold cooling pillars 3 can be designed as stainless steel, copper, aluminum alloy, etc., depending on the cooling intensity and thermal conductivity requirements. Cooling channels 2 are machined with countersunk holes according to the positions and diameters of the mold cooling pillars. The cooling channels 2 are then assembled with the mold cooling pillars 3, and welded at the joints to prevent leakage. Finally, the cooling channel cover 4, connecting the cooling inlet and outlet pipes 5, is welded onto the cooling channels 2. When cooling is activated, cooling water enters the cooling channels 2 through the cooling inlet and outlet pipes 5. As the activation time increases, the water level in the cooling channels rises. When the water level surpasses the mold cooling pillars 3, the temperature of the mold body is conducted to the water through the mold cooling pillars 3, achieving a cooling effect on the mold and the melt. The heated cooling water flows out from the outlet, continuing the cooling process. When cooling is deactivated, the cooling water stops flowing in, and the cooling water in the cooling channels 2 flows out from the outlet under gravity. The liquid level in the cooling channels 2 is lower than the mold cooling pillars 3, and cooling stops.

[0025] exist Fig. 2 In the middle, the water inlet and outlet pipes 5 of the bottom mold contact type are connected to the control cabinet, and water circulation cooling is formed through the cooling inlet and outlet pipes 5.

[0026] exist Fig. 3 In addition to the conventional cylindrical shape, the mold cooling column 3 can be designed as a cuboid, frustum, sphere, etc., according to the actual space of the mold, so it has strong applicability and can be applied to molds of different shapes.

[0027] Compared with existing technologies, the point-contact water-cooled structure mold of this utility model has the following advantages:

[0028] The purpose of this invention is to provide a novel cooling structure suitable for aluminum alloy wheel hub casting molds, with a cooling efficiency between air cooling and water cooling, which can cool relatively thin parts such as wheel spokes.

[0029] The utility model discloses a mould cooling column and cooling water channel are assembled, and are welded at the joint of both, avoid water leakage, finally cooling water channel cover plate of connecting inlet and outlet water pipe is welded on the water channel.

[0030] While using water as cooling medium, avoid the internal quality defect caused by too high cooling intensity, and moderate cooling intensity can improve casting production efficiency, reduce air cooling use, save compressed air and reduce production cost.

[0031] In the description of the utility model, it is understood that the orientation or positional relationship of the terms "center", "longitudinal", "transverse", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, a particular orientation structure and operation, and therefore cannot be understood as a limitation on the protection content of the utility model.

[0032] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0033] In the utility model, unless otherwise specifically defined and limited, the terms "installation", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, can be fixed connection, can be detachable connection, or integral; can be mechanical connection, or electrical connection or can communicate with each other; can be directly connected, or indirectly connected through an intermediate medium, can be the communication or interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0034] The above is only the preferred embodiment of the utility model, and does not limit the utility model, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A point-contact water-cooled structural mold, characterized in that, It includes a mold base, on which a cooling water channel is provided that connects to the cooling water inlet and outlet pipes. A mold cooling column is provided inside the cooling water channel, and the cooling water channel is fixedly connected to a cooling water channel cover plate.

2. The point-contact water-cooled structural mold according to claim 1, characterized in that, The cooling water channel is equipped with countersunk holes that match the diameter of the mold cooling column, and the mold cooling column is fixedly installed in the countersunk holes.

3. The point-contact water-cooled structural mold according to claim 2, characterized in that, The mold cooling column is welded to the cooling water channel.

4. The point-contact water-cooled structural mold according to claim 2, characterized in that, The mold cooling column is made of stainless steel.

5. The point-contact water-cooled structural mold according to claim 2, characterized in that, The mold cooling column is made of copper.

6. The point-contact water-cooled structural mold according to claim 2, characterized in that, The mold cooling column is made of aluminum alloy.

7. The point-contact water-cooled structural mold according to claim 2, characterized in that, Mold cooling columns include cuboid mold cooling columns and / or frustum-shaped mold cooling columns and / or spherical mold cooling columns.

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