High-temperature die-casting mold provided with rapid cooling water path

Abstract

The utility model relates to high temperature die -casting mould with quick cooling water route, including opposite setting fixed mould component and movable mould component, include: mould cavity, form in fixed mould component, cooling water route component is set up in fixed mould component, and is set in the outside of mould cavity, under the condition that liquid flows in cooling water route component, exchanges with the temperature of mould cavity to reduce the temperature of mould cavity. Through setting up cooling water route component, this high temperature die -casting mould can make metal liquid quick cooling in mould cavity, has solved the problem that metal liquid cools slowly in the prior art, is helpful to shorten the die -casting forming period, improves production efficiency, on the other hand can effectively improve product internal organization structure, reduces product surface crack and so on defects, has promoted the overall quality of product.

Description

Technical Field

[0001] This utility model relates to the field of die casting mold technology, and in particular to a high-temperature die casting mold with a rapid cooling water channel. Background Technology

[0002] Die casting molds are essential tools in the field of liquid casting and forging. Die casting, as a process performed on a die casting and forging machine, has a unique forming process. In the die casting process, molten metal first fills the cavity (i.e., the pressure chamber) of the die casting mold on the die casting and forging machine. Subsequently, pressure forging is carried out during the cooling process of the molten metal. This process can effectively improve the mechanical properties of the metal blank and ultimately produce high-quality die casting products.

[0003] However, current die-casting molds have revealed significant shortcomings in practical use. Currently, existing die-casting molds typically use a sprue bushing to allow molten metal to enter and eventually fill the casting cavity. However, the extremely high temperature of the molten metal entering the casting cavity leads to a series of serious problems. Firstly, the molten metal cannot cool rapidly within the casting cavity, directly negatively impacting the casting process, resulting in longer casting times, reduced production efficiency, and slow cooling affecting the internal microstructure and density uniformity of the die-cast parts, leading to reduced mechanical properties and unstable product quality. Secondly, prolonged exposure to high temperatures and slow cooling easily causes surface cracks, significantly affecting the product's appearance and integrity, and reducing yield. These problems not only increase production costs but also severely impact product quality and market competitiveness. Therefore, it is necessary to improve existing die-casting molds to address the slow cooling of the molten metal, thereby improving the quality and production efficiency of die-cast products. Utility Model Content

[0004] (a) Technical problems to be solved In view of the above-mentioned shortcomings and deficiencies of the prior art, this utility model provides a high-temperature die-casting mold with a rapid cooling water channel, which solves the technical problem that molten metal cannot be cooled rapidly in the casting cavity.

[0005] (II) Technical Solution To achieve the above objectives, the main technical solutions adopted by this utility model include: In a first aspect, embodiments of this utility model provide a high-temperature die-casting mold with a rapid cooling water channel.

[0006] The high-temperature die-casting mold with a rapid cooling water channel proposed in this embodiment of the invention includes a fixed mold assembly and a moving mold assembly arranged opposite to each other, comprising: The mold cavity is formed on the fixed mold assembly; The cooling water circuit assembly is located inside the fixed mold assembly and is fitted onto the outside of the mold cavity. When the liquid flows in the cooling water circuit assembly, it exchanges temperature with the mold cavity to reduce the temperature of the mold cavity.

[0007] Optionally, the cooling water circuit assembly includes: The cooling cavity is formed within the fixed mold assembly and is fitted onto the outside of the mold cavity; The water inlet is located on the fixed mold assembly and is connected to the cooling cavity; The water outlet is located on the fixed mold assembly and is connected to the cooling cavity.

[0008] Optionally, the inlet and outlet are respectively located on both sides of the cooling chamber, and there is a height difference between the inlet and outlet along the height direction of the cooling chamber.

[0009] Optionally, the cooling water circuit assembly also includes: Several guide rings are coaxially arranged in the cooling chamber, and guide ports are formed on the guide rings; In this case, adjacent guide ports are not on the same axis.

[0010] Optionally, the guide ring adjacent to the inlet and outlet has its guide opening located on the side away from the inlet and outlet.

[0011] Optionally, the cooling water circuit assembly also includes: Water-permeable holes are evenly distributed on the guide ring, wherein the diameter of the water-permeable holes is smaller than the diameter of the guide opening.

[0012] Optionally, the cooling water circuit assembly also includes: A sealing plate, which can be detachably installed at the bottom of the fixed mold assembly, is used to seal the cooling chamber.

[0013] Optionally, it also includes: Temperature sensors are installed in the inlet and outlet of the water.

[0014] Optionally, it also includes: The drive pump is connected to the outlet. When the temperature sensor detects that the temperature at the outlet is higher than the preset range, the drive pump increases the flow rate of the liquid in the outlet.

[0015] (III) Beneficial Effects The beneficial effects of this invention are as follows: The high-temperature die-casting mold with a rapid cooling water channel includes a fixed mold assembly, a moving mold assembly, a mold cavity, and a cooling water channel assembly. The cooling water channel assembly is located within the fixed mold assembly and fitted onto the outside of the mold cavity, ensuring maximum contact area between the cooling water channel assembly and the mold cavity, thus creating favorable conditions for efficient heat exchange. When liquid flows within the cooling water channel assembly, because the temperature of the coolant is lower than that of the mold cavity, the heat from the mold cavity is transferred to the coolant in the cooling water channel assembly through heat conduction. During continuous flow, the coolant continuously carries away the heat absorbed from the mold cavity, achieving temperature exchange with the mold cavity and effectively reducing its temperature. By incorporating the cooling water channel assembly, this high-temperature die-casting mold enables rapid cooling of the molten metal within the mold cavity, solving the problem of slow cooling of molten metal in existing technologies, helping to shorten the die-casting cycle and improve production efficiency. Furthermore, it effectively improves the internal structure of the product, reduces surface cracks and other defects, and enhances the overall quality of the product. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the high-temperature die-casting mold with a rapid cooling water channel according to the present invention. Figure 2 This is a three-dimensional cross-sectional structural diagram of the high-temperature die-casting mold with a rapid cooling water channel according to this utility model. Figure 3 This is a three-dimensional structural diagram of the guide ring of this utility model.

[0017] [Explanation of Labels in the Attached Image] 100-Fixed mold assembly, 200-Moving membrane assembly, 300-Mold cavity, 400-Cooling water circuit assembly, 500-Temperature detection sensor, 600-Drive pump; 410 - Cooling chamber, 420 - Flow guide ring, 430 - Sealing plate; 401 - Inlet, 402 - Outlet, 403 - Flow guide, 404 - Water permeable hole. Detailed Implementation

[0018] To better explain and facilitate understanding of this utility model, a detailed description of its specific embodiments is provided below with reference to the accompanying drawings. In this document, directional terms such as "upper" and "lower" are used interchangeably with... Figure 1 The orientation is used as a reference.

[0019] To better understand the above technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention can be understood more clearly and thoroughly, and that the scope of the present invention can be fully conveyed to those skilled in the art.

[0020] like Figures 1 to 3 As shown, this embodiment proposes a high-temperature die-casting mold with a rapid cooling water channel, including a fixed mold assembly 100 and a moving mold assembly 200 arranged opposite to each other, including: a mold cavity 300 formed on the fixed mold assembly 100; and a cooling water channel assembly 400 disposed inside the fixed mold assembly 100 and sleeved on the outside of the mold cavity 300. When the liquid in the cooling water channel assembly 400 flows, it exchanges temperature with the mold cavity 300 to reduce the temperature of the mold cavity 300.

[0021] The high-temperature die-casting mold with rapid cooling water channel provided in this embodiment includes a fixed mold assembly 100, a moving mold assembly 200, a mold cavity 300, and a cooling water channel assembly 400. The fixed mold assembly 100 and the moving mold assembly 200 cooperate with each other during the die-casting process to realize the opening and closing of the mold and the forming operation of the molten metal. Through precise positioning and cooperation, they ensure the accuracy and stability of the die-casting process. The mold cavity 300 is formed on the fixed mold assembly 100 and directly determines the final shape and dimensional accuracy of the die-cast part. It is specifically designed according to the specific shape and structure of the die-cast part to be produced. During die-casting, the molten metal is injected into the mold cavity 300 and gradually solidifies and forms the desired product shape as the temperature decreases.

[0022] The cooling water channel assembly 400 is disposed within the fixed mold assembly 100 and sleeved on the outside of the mold cavity 300, ensuring that the contact area between the cooling water channel assembly 400 and the mold cavity 300 is maximized, thus creating favorable conditions for efficient heat exchange. When liquid flows within the cooling water channel assembly 400, since the temperature of the coolant is lower than that of the mold cavity 300, the heat from the mold cavity 300 is transferred to the coolant in the cooling water channel assembly 400 through heat conduction. During the continuous flow of the coolant, it continuously carries away the heat absorbed from the mold cavity 300, achieving temperature exchange with the mold cavity 300, thereby effectively reducing the temperature of the mold cavity 300. By setting up a cooling water channel assembly 400, this high-temperature die-casting mold can rapidly cool the molten metal within the mold cavity 300, solving the problem of slow cooling of molten metal in the prior art. This helps to shorten the die-casting cycle and improve production efficiency. On the other hand, it can effectively improve the internal structure of the product, reduce defects such as surface cracks, and improve the overall quality of the product.

[0023] like Figure 2 As shown, in some examples, the cooling water channel assembly 400 includes: a cooling cavity 410 formed within the fixed mold assembly 100 and sleeved on the outside of the mold cavity 300; a water inlet 401 disposed on the fixed mold assembly 100 and communicating with the cooling cavity 410; and a water outlet 402 disposed on the fixed mold assembly 100 and communicating with the cooling cavity 410.

[0024] In this technical solution, the cooling cavity 410 is inside the fixed mold assembly 100 and is sleeved on the outside of the mold cavity 300. The cooling cavity 410 and the mold cavity 300 are separated by only one layer of mold material, which provides excellent physical conditions for efficient heat exchange between the two. Since the cooling cavity 410 surrounds the mold cavity 300, it can contact the mold cavity 300 in all directions and over a large area, thereby absorbing heat from the mold cavity 300 evenly and efficiently.

[0025] The inlet 401 is located on the fixed mold assembly 100 and is connected to the cooling chamber 410. Its main function is to provide an inlet channel for the low-temperature coolant in the cooling chamber 410. When the cooling system of the die-casting mold is working, the coolant is transported into the cooling chamber 410 through the inlet 401 via an external liquid delivery device. The outlet 402 is also located on the fixed mold assembly 100 and is connected to the cooling chamber 410. Its function is to provide an outlet channel for the coolant that has absorbed heat from the mold cavity 300. When the coolant flows in the cooling chamber 410 and carries away the heat from the mold cavity 300, its temperature rises. At this time, the high-temperature coolant flows out of the cooling water circuit assembly 400 through the outlet 402, is cooled by external cooling equipment, and then recirculates back into the cooling chamber 410 through the inlet 401 to participate in the cooling process.

[0026] like Figure 1 and Figure 2 As shown, in some examples, the inlet 401 and the outlet 402 are respectively located on both sides of the cooling chamber 410, and there is a height difference between the inlet 401 and the outlet 402 along the height direction of the cooling chamber 410.

[0027] In this technical solution, the inlet 401 and outlet 402 are located on both sides of the cooling cavity 410. When the coolant enters the cooling cavity 410 through the inlet 401, it can form a through-flow within the cavity, covering all areas of the cooling cavity 410 as much as possible, thereby ensuring comprehensive and uniform heat exchange. For example, if the inlet 401 and outlet 402 are located on the same side, the coolant may form a local short-circuit flow, causing some areas within the cooling cavity 410 to not fully contact the coolant, resulting in uneven cooling. This, in turn, leads to poor cooling effect of the mold cavity 300, affecting the quality of the die-cast part. The arrangement on both sides allows the coolant to flow fully within the cooling cavity 410 along a preset path, maximizing the absorption of heat dissipated from the mold cavity 300 and ensuring a uniform temperature reduction throughout the mold cavity.

[0028] Along the height direction of the cooling chamber 410, the inlet 401 and outlet 402 form a height difference. This height difference utilizes the gravity of the liquid, which helps to create natural convection of the coolant. When the low-temperature coolant enters the cooling chamber 410 from the inlet 401, due to the height difference, the coolant will naturally flow downwards under the influence of gravity. The height difference design effectively increases the flow path of the coolant within the cooling chamber 410. The longer flow path provides sufficient time for the coolant to exchange heat with the mold cavity 300, allowing the coolant to more fully absorb the heat from the mold cavity 300, thereby improving cooling efficiency.

[0029] like Figure 2 and Figure 3 As shown, in some examples, the cooling water circuit assembly 400 further includes: a plurality of guide rings 420, which are coaxially arranged in the cooling chamber 410, and guide ports 403 are formed on the guide rings 420; wherein adjacent guide ports 403 are not on the same axis; and water permeable holes 404, which are evenly distributed on the guide rings 420, wherein the diameter of the water permeable holes 404 is smaller than the diameter of the guide ports 403.

[0030] In this technical solution, several guide rings 420 are coaxially arranged in the cooling cavity 410, so that the coolant can be uniformly and stably guided when passing through the guide rings 420. At the same time, they together form a series of annular guide structures around the mold cavity 300, which helps to more effectively control the contact mode and area between the coolant and the mold cavity 300, thereby improving the heat exchange efficiency.

[0031] The guide ring 420 has guide ports 403 formed on it to change the flow direction of the coolant. The guide ports 403 change the originally relatively simple flow pattern of the coolant. Adjacent guide ports 403 are not on the same axis, and the staggered arrangement further enhances the complexity and diversity of the coolant flow. If adjacent guide ports 403 are on the same axis, the coolant may flow in a straight line or a relatively regular fixed streamline, making it difficult to achieve uniform cooling of the mold cavity 300 from all directions. However, the staggered guide ports 403 can continuously change the flow direction and streamline of the coolant, making it form an interlaced and turbulent flow pattern in the cooling cavity, which greatly increases the contact area and contact time between the coolant and the wall of the mold cavity 300, thereby significantly improving the cooling efficiency and uniformity.

[0032] Water-permeable holes 404 are evenly distributed on the guide ring 420, ensuring that the coolant can penetrate and circulate to a certain extent through the water-permeable holes 404 in all parts of the guide ring 420, avoiding the accumulation of coolant in local areas of the guide ring 420 and thus failing to fully exert its cooling effect, and ensuring the uniform distribution of coolant across the entire cross-section of the cooling chamber 410.

[0033] The diameter of the water inlet 404 is smaller than the diameter of the guide port 403. This is because the larger diameter of the guide port 403 can provide strong guidance for the mainstream coolant, forming a large-scale coolant flow path to cover the main area of ​​the cooling chamber 410. The smaller diameter of the water inlet 404 controls the coolant flow rate through the water inlet 404, enabling it to assist the mainstream coolant in achieving a more refined and uniform heat exchange, further improving the uniformity and comprehensiveness of cooling.

[0034] like Figure 2 As shown, in some instances, the guide ring 420 adjacent to the inlet 401 and the outlet 402 has a guide port 403 located on the side away from the inlet 401 and the outlet 402.

[0035] In this technical solution, the inlet 401 and outlet 402 are the channels for coolant to enter and exit the cooling chamber 410. If the guide port 403 on the adjacent guide ring 420 also faces the side of the inlet 401 or outlet 402, the coolant may flow directly to the outlet 402 after entering the cooling chamber 410 without sufficient circulation, forming a so-called "short-flow" phenomenon. Short-flow will prevent the coolant from fully exchanging heat with the mold cavity 300, reducing cooling efficiency. By placing the guide port 403 on the side away from the inlet 401 and outlet 402, this short-flow situation can be effectively prevented, guiding the coolant deep into the interior of the cooling chamber 410, ensuring that the coolant achieves sufficient and effective circulation throughout the cooling chamber, thereby improving heat exchange efficiency and cooling the mold cavity 300 more evenly.

[0036] By positioning the guide port 403 on the guide ring 420 adjacent to the inlet 401 and outlet 402 on the side away from them, the coolant is forced to change its flow direction when entering and leaving the area near the cooling chamber 410, flowing further away from the mold cavity 300. This allows the coolant to make more comprehensive contact with the outer peripheral wall of the mold cavity 300, increasing the contact area and contact time between the coolant and the mold cavity 300.

[0037] like Figure 2 As shown, in some instances, the cooling water circuit assembly 400 further includes a sealing plate 430, which is detachably mounted on the bottom of the fixed mold assembly 100 for sealing the cooling chamber 410.

[0038] In this technical solution, the primary function of the sealing plate 430 is to effectively seal the cooling chamber 410. In the entire cooling system, the coolant needs to circulate in a relatively enclosed space to ensure that it can flow along a predetermined path and fully exert its cooling effect. The sealing plate 430 is tightly installed at the bottom of the fixed mold assembly 100, forming a reliable barrier to prevent coolant leakage and ensure that the coolant flows stably and continuously in the cooling chamber 410.

[0039] The removable sealing plate 430 greatly facilitates the maintenance and repair of the cooling water circuit assembly 400. During long-term use of the die-casting mold, scale buildup and component damage may occur inside the cooling chamber 410. The removable sealing plate 430 allows maintenance personnel to easily open the cooling chamber 410 to directly inspect, clean, or replace damaged components.

[0040] like Figure 1 and Figure 2 As shown, in some examples, it also includes: a temperature detection sensor 500, which is respectively installed in the inlet 401 and the outlet 402; and a drive pump 600, which is connected to the outlet 402. When the temperature detection sensor 500 detects that the temperature of the outlet 402 is higher than a preset range, the drive pump 600 increases the flow rate of the liquid in the outlet 402.

[0041] In this technical solution, monitoring the temperature of the inlet 401 can obtain the basic temperature of the coolant before it enters the cooling chamber 410 in real time. This helps operators understand the initial state of the coolant and determine whether it meets the requirements for normal operation of the cooling system. If the inlet temperature is too high or too low, it may mean that there is a problem with the coolant supply. It is necessary to check and adjust it as soon as possible to prevent negative impacts on the subsequent cooling process.

[0042] Monitoring the temperature of the outlet 402 can directly reflect the final temperature state of the coolant after heat exchange between the coolant and the mold cavity 300 through the cooling chamber 410. The outlet temperature is an important indicator for measuring whether the cooling effect meets the requirements of the die casting production process. Through real-time monitoring, operators can keep track of whether the cooling system has effectively reduced the heat generated in the mold cavity 300 during the die casting process.

[0043] The drive pump 600 is connected to the outlet 402. When the temperature sensor 500 detects that the temperature of the outlet 402 is higher than a preset range, it indicates that the current cooling system is not effectively cooling the mold cavity 300, and the heat in the mold cavity 300 is not being adequately carried away by the coolant. In this situation, the drive pump 600 will activate, increasing the flow rate of the liquid in the outlet 402. By increasing the flow rate, the drive pump 600 can accelerate the circulation speed of the coolant within the cooling system. Faster circulation means that the coolant can pass through the cooling chamber 410 surrounding the mold cavity 300 more frequently, exchanging heat with the mold cavity 300, thereby reducing the temperature of the mold cavity 300.

[0044] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0045] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0046] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "beneath" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0047] In the description of this specification, the terms "one embodiment," "some embodiments," "embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0048] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make modifications, alterations, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A high-temperature die-casting die provided with a rapid cooling water channel, comprising a fixed die assembly (100) and a movable die assembly (200) arranged oppositely, characterized in that, include: A mold cavity (300) is formed on the fixed mold assembly (100); A cooling water channel assembly (400) is disposed inside the fixed mold assembly (100) and sleeved on the outside of the mold cavity (300). When the liquid flows in the cooling water channel assembly (400), it exchanges temperature with the mold cavity (300) to reduce the temperature of the mold cavity (300). The cooling water circuit assembly (400) includes: A cooling cavity (410) is formed within the fixed mold assembly (100) and fitted onto the outside of the mold cavity (300); A water inlet (401) is provided on the fixed mold assembly (100) and communicates with the cooling cavity (410); The water outlet (402) is disposed on the fixed mold assembly (100) and communicates with the cooling cavity (410); The inlet (401) and the outlet (402) are respectively located on both sides of the cooling chamber (410), and there is a height difference between the inlet (401) and the outlet (402) along the height direction of the cooling chamber (410).

2. The high-temperature die-casting mold provided with a rapid cooling water channel according to claim 1, characterized in that, The cooling water circuit assembly (400) also includes: A plurality of guide rings (420) are coaxially disposed in the cooling chamber (410), and a guide port (403) is formed on the guide ring (420). The adjacent guide ports (403) are not on the same axis.

3. The high-temperature die-casting mold with a rapid cooling water channel as described in claim 2, characterized in that: The guide ring (420) adjacent to the inlet (401) and the outlet (402) has a guide port (403) located on the side away from the inlet (401) and the outlet (402).

4. The high-temperature die-casting mold provided with a rapid cooling water channel according to claim 2, characterized in that, The cooling water circuit assembly (400) also includes: Water-permeable holes (404) are evenly distributed on the guide ring (420), wherein the diameter of the water-permeable holes (404) is smaller than the diameter of the guide port (403).

5. The high-temperature die-casting mold provided with a rapid cooling water channel according to claim 2, characterized in that, The cooling water circuit assembly (400) also includes: A sealing plate (430) is detachably installed at the bottom of the fixed mold assembly (100) for sealing the cooling chamber (410).

6. The high-temperature die-casting mold provided with a rapid cooling water channel according to claim 1, characterized in that, Also includes: Temperature detection sensors (500) are respectively installed in the water inlet (401) and the water outlet (402).

7. The high-temperature die-casting mold provided with a rapid cooling water channel according to claim 6, characterized in that, Also includes: A drive pump (600) is connected to the outlet (402). When the temperature detection sensor (500) detects that the temperature of the outlet (402) is higher than the preset temperature, the drive pump (600) increases the flow rate of the liquid in the outlet (402).

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