Novel differential pressure die riser cooling system

Abstract

The utility model discloses a novel differential pressure die riser cooling system, and belongs to the technical field of cooling. The novel differential pressure die riser cooling system comprises a die, a cover plate and a water inlet and outlet pipeline, the mold comprises an annular water path; the cover plate covers the annular water path; the water inlet and outlet pipeline is connected with the annular water way and used for achieving circulation of cooling liquid in the annular water way. According to the novel differential pressure die riser cooling system, the annular water path is arranged on the die, so that the cooling system is relatively simple, and the design of the annular water path can reduce the influence of stress on the water path.

Description

TECHNICAL FIELD

[0001] The utility model relates to cooling technical field especially relates to a novel differential pressure mould riser cooling system. BACKGROUND

[0002] In the cooling technical field, the cooling technology of differential pressure mould influences the quality and production efficiency of differential pressure mould. In the related technology, the water path complexity of water cooling disc indirect type cooling is higher. Therefore, a cooling system is urgently needed to realize the cooling of differential pressure mould. SUMMARY

[0003] The utility model provides a novel differential pressure mould riser cooling system to solve above -mentioned problem. The technical scheme is as follows:

[0004] On the one hand, a novel differential pressure mould riser cooling system is provided, and the differential pressure mould cooling system comprises a mould, a cover plate and an inlet and outlet water pipeline, wherein the mould comprises an annular water path,

[0005] The cover plate covers the annular water path,

[0006] The inlet and outlet water pipeline is connected with the annular water path and is used for realizing the circulation of cooling liquid in the annular water path.

[0007] In a possible implementation, the number of cover plates is two, and the two cover plates comprise a first cover plate and a second cover plate, and the first cover plate and the second cover plate are sequentially covered on the annular water path.

[0008] In a possible implementation, the cover plate is fixed on the annular water path by welding to seal the annular water path.

[0009] In a possible implementation, there is a groove between the second cover plate covering the annular water path and the mould, and the groove is used for welding the cover plate.

[0010] In a possible implementation, before welding, the mould and the cover plate are heated to a first temperature range, and the welding process is carried out in a heat preservation container.

[0011] In a possible implementation, the structure of the annular water path matches the structure of the mould.

[0012] The technical scheme provided by the utility model brings at least the following beneficial effects:

[0013] The technical scheme provided by the utility model sets the annular water path on the mould, so that the cooling system is relatively simple. In addition, the annular water path directly arranged on the mould improves the cooling efficiency. Moreover, the annular design reduces the possibility of stress concentration leading to mould cracking. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a structural schematic diagram of a water-cooled plate indirect cooling system provided by related technologies;

[0016] Figure 2 This is a structural schematic diagram of a direct water cooling system provided by related technologies;

[0017] Figure 3 This is a schematic diagram of a novel differential pressure mold riser cooling system proposed in this utility model;

[0018] Figure 4 This is a schematic diagram of a cover plate structure proposed in this utility model.

[0019] Reference numerals: First cover plate 101, Second cover plate 102, Weld 103, Annular water channel 104. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this application clearer, the present invention will be described in further detail below with reference to the accompanying drawings.

[0021] It should be noted that the terms "first," "second," etc. (if applicable) in the specification of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of utility models consistent with some aspects of this application.

[0022] In the pursuit of precision machining and high-efficiency production in modern manufacturing, the cooling technology of differential pressure molds is related to the final quality of the product, affecting the overall efficiency and cost control of the production line. Related cooling technologies, such as... Figure 1The diagram shows indirect cooling via a water-cooled plate. While this method can control mold temperature to some extent, the heat transfer efficiency is low due to the intermediate layer (such as the water-cooled plate) between the cooling medium (water) and the mold surface. The cooling effect is often uneven, especially in cases of complex mold structures and uneven wall thicknesses. Cooling dead zones and overheated areas are difficult to avoid, directly affecting the dimensional accuracy and internal structural uniformity of the castings, thus reducing casting efficiency.

[0023] For example Figure 2 The direct water cooling method shown in the figure involves water acting directly on the internal water channels of the mold. The difference in thermal expansion and contraction between the mold material and the water under temperature changes can easily lead to stress concentration at the junction of the water channels. Over time, the accumulated stress eventually causes cracks to appear on the front of the mold cavity. In severe cases, it can even cause the mold to crack and leak water. This not only shortens the service life of the mold but may also lead to production interruption, requiring the redesign and manufacture of the mold core, which greatly increases production costs and time.

[0024] This invention provides a novel differential pressure mold riser cooling system, which achieves mold cooling while solving the aforementioned problems. See also... Figure 3 , Figure 3 This is a schematic diagram of a novel differential pressure mold riser cooling system provided by this utility model. Figure 3 A in the text is Figure 3 The cross-sectional view of B along line aa in the figure. The novel differential pressure mold riser cooling system includes a mold, a cover plate, and inlet and outlet water pipes; the mold includes an annular water channel 104; the cover plate covers the annular water channel 104; the inlet and outlet water pipes are connected to the annular water channel 104 to realize the circulation of coolant in the annular water channel 104.

[0025] As the foundation of the entire cooling system, the mold incorporates an annular water channel 104, which optimizes the flow path of the coolant and ensures that the coolant evenly covers the riser area of ​​the mold, thereby achieving efficient cooling. This invention does not limit the type of coolant used; for example, water may be used.

[0026] The annular water channel 104 is an internal structure of the mold. It can be arranged around the perimeter of the mold riser to form a closed cooling channel, allowing the coolant to fully contact the mold riser during flow, carrying away a large amount of heat and achieving rapid cooling. This invention does not limit the specific structure of the annular water channel 104; for example... Figure 3 The annular waterway 104 in the middle includes multiple loops.

[0027] The cover plate is a component that covers the annular waterway 104. It can be made of high-temperature-resistant and corrosion-resistant materials to ensure good sealing and stability in a high-temperature environment for a long time. The utility model does not limit the material of the cover plate, and can realize the effect of sealing the annular waterway 104. Through close fitting and sealing, the cover plate effectively prevents leakage of the cooling liquid and intrusion of external impurities, thereby ensuring stable operation of the cooling system.

[0028] The water inlet and outlet pipeline is a bridge connecting the annular waterway 104 and the external cooling liquid supply system. It is responsible for introducing the cooling liquid into the annular waterway 104 and discharging the cooled liquid from the system, respectively. The design of the water inlet and outlet pipeline needs to consider the flow characteristics and pressure loss of the cooling liquid to ensure that the cooling liquid can enter the annular waterway 104 with the best flow rate and pressure. The water inlet and outlet pipeline is connected to the annular waterway 104 through special connectors to form a complete cooling liquid circulation system. During the cooling process, the cooling liquid enters the annular waterway 104 from the water inlet pipeline, flows along the set path, absorbs the heat of the mold riser, and then is discharged from the water outlet pipeline to the system. Through continuous circulation, the cooling liquid can continuously take away the heat of the mold riser, achieving efficient cooling.

[0029] In one possible implementation, the number of cover plates is two, and the two cover plates include a first cover plate 101 and a second cover plate 102, and the annular waterway 104 is sequentially covered by the first cover plate 101 and the second cover plate 102.

[0030] The double-cover-plate design can improve the sealing, stability and cooling efficiency of the system. It should be noted that the utility model does not limit the number of cover plates, and the utility model only takes two layers as an example for illustration. The first cover plate 101 is the first cover plate directly covering the annular waterway 104. The first cover plate 101 and the annular waterway 104 are tightly fitted through precise fitting to prevent leakage of the cooling liquid during circulation. Since the cooling liquid will generate a certain pressure during circulation, the first cover plate 101 needs to have good pressure-bearing capacity to ensure that it remains stable under high pressure without deformation or damage.

[0031] The second cover plate 102 is the second cover plate covering the first cover plate 101, which can further enhance the sealing and stability of the system and provide additional protection against damage to the first cover plate 101 under extreme conditions. Optionally, the second cover plate 102 can also adopt a multi-layer structure or composite material to improve its overall performance. In addition to providing additional sealing and stability, the second cover plate 102 can also serve as a buffer and shock absorber, especially when the mold is subjected to external impact or vibration, to protect the underlying first cover plate 101 and annular waterway 104 from damage.

[0032] In one possible implementation, the cover plate is fixed on the annular waterway 104 by welding to seal the annular waterway 104.

[0033] Welding is a technique that melts and bonds two or more metal parts together by heating. In the new type of differential pressure mold riser cooling system, the welding between the cover plate and the annular waterway 104 is achieved by heating the contact surface of the two to a molten state and then cooling and solidifying. The welding connection has the characteristics of high strength, good sealing performance and strong durability.

[0034] Referring to Figure 4 , a cover plate structure schematic diagram is shown, Figure 4 , D in Figure 4 , a cross-sectional schematic diagram of C along the bb line in Figure 4 , E in Figure 4 , an enlarged schematic diagram of the box in D. In one possible implementation, there is a groove between the second cover plate 102 covering the annular waterway 104 and the mold, which is used for welding the cover plate.

[0035] The design of the groove is based on the requirements of the welding process and the functional requirements of the system. During the welding process, the groove provides enough space to accommodate welding materials (such as welding wire or electrode), and ensures that the molten pool generated during the welding process can be fully filled and solidified to form a strong weld 103. At the same time, the shape and size of the groove are also carefully calculated to ensure that the second cover plate 102 has good sealing performance and structural strength after welding with the mold. Among them, the groove is formed based on the shape of the second cover plate 102 which is wide at the bottom and narrow at the top.

[0036] The groove is usually located on the contact surface between the second cover plate 102 and the mold, and its shape can be V-shaped, U-shaped or other shapes, depending on the welding method and material characteristics. The depth, width and angle of the groove are optimized to ensure the quality of the welding and the reliability of the weld 103. In addition, the groove and its surrounding area usually need to be pretreated, such as cleaning, rust removal, sandblasting, etc., to ensure that the welding process is not affected by impurities.

[0037] During the welding process, the welding gun or torch moves along the edge of the groove, feeds the welding wire or electrode into the groove, and heats it to a molten state. As the welding gun moves, the molten welding material fills the groove and forms a weld 103. After cooling and solidification, the weld 103 firmly fixes the second cover plate 102 on the mold. The weld 103 formed by the welding groove has good sealing performance and can prevent the cooling liquid from leaking during circulation. The second cover plate 102 after welding and the mold form a strong connection, improving the overall structural strength of the system. The welded connection is permanent and reliable, which can ensure that the system can still operate stably in harsh environments.

[0038] In one possible implementation, before welding, the mold and the cover plate are heated to a first temperature range, and the welding process is carried out in an insulation container.

[0039] Preheating can reduce thermal stress and deformation generated during welding, and improve the quality and strength of the weld 103. Through preheating, the temperature of the mold and the cover plate gradually rises, so that the metal in the welding area is more easily melted during welding, while reducing thermal stress caused by temperature differences. The first temperature range is determined according to the material properties of the mold and the cover plate, the welding method, and the thermal physical properties of the welding material. The first temperature range in the present application can be a temperature interval, or a specific temperature, for example, 400 degrees Celsius.

[0040] Exemplarily, the present application does not limit the method of preheating, such as resistance heating, induction heating, flame heating, etc. The specific choice of heating method depends on the size, shape of the mold and cover plate, and the available heating equipment.

[0041] The insulation container is a closed space that can maintain a certain temperature range, used to provide a stable temperature environment during welding. The insulation container is made of high-temperature resistant material and has good heat preservation performance, which can reduce heat loss during welding and maintain stable temperature of the welding area. Welding in the insulation container can ensure that the welding area maintains a stable temperature during welding, which helps to reduce welding defects and improve the quality and strength of the weld 103. At the same time, the insulation container can also protect the welding area from external environmental interference, such as air flow, dust, etc. When welding in the insulation container, welding parameters such as welding current, voltage, welding speed, etc. need to be adjusted according to the material properties of the mold and the cover plate, the welding method, and the thermal physical properties of the welding material to ensure welding quality.

[0042] Through preheating and insulation welding, thermal stress and deformation generated during welding can be reduced, and the overall performance of the mold and the cover plate can be improved. Moreover, welding in the insulation container can maintain a stable temperature environment, thereby improving the welding efficiency.

[0043] In one possible implementation, the structure of the annular water channel 104 matches the structure of the mold.

[0044] The shape and size of the annular waterway 104 are generally determined according to the cooling needs of the mold. It can be regular annular, spiral or other complex shapes to adapt to different parts of the mold and cooling needs. At the same time, the size of the annular waterway 104 also needs to match the size of the mold to ensure that the cooling liquid can fully cover the cooling area of the mold. The annular waterway 104 can be made of corrosion-resistant, high-temperature-resistant and high-strength materials such as stainless steel, copper alloy, etc. Alternatively, in the embodiment of the utility model, the annular waterway 104 is formed by grooving the mold.

[0045] The cooling area of the mold is usually located at the part that needs to be cooled, such as the core, the cavity, etc. The shape and size of the cooling area may vary depending on the product, so the structure of the annular waterway 104 also needs to be adjusted accordingly.

[0046] Optionally, during the matching design process, simulation technology can be used to simulate the performance of the cooling system. Through simulation analysis, key parameters such as the flow of the cooling liquid in the annular waterway 104 and the temperature distribution can be predicted, and the design can be optimized according to the simulation results. This helps to ensure that the cooling system can achieve the expected cooling effect in actual application.

[0047] Through matching design, it can be ensured that the cooling liquid can be uniformly distributed in the cooling area of the mold, so as to effectively take away the heat. This helps to improve the efficiency of the cooling system and reduce the temperature fluctuation of the mold during the molding process. Matching design can ensure that the mold maintains stable performance and quality during long-term use. Through effective cooling, thermal stress and deformation of the mold due to overheating can be reduced, thereby prolonging the service life of the mold. Through optimization of the matching design, the complexity and maintenance cost of the cooling system can be reduced. At the same time, due to the improvement of the cooling efficiency, energy consumption and production cost can be reduced.

[0048] In summary, the technical scheme provided by the utility model sets the annular waterway on the mold, so that the cooling system is relatively simple. The annular waterway directly set on the mold improves the cooling efficiency, and different molds can set different waterways according to different cooling needs. Moreover, the annular design reduces the possibility of stress concentration leading to mold cracking. In addition, the heating and holding welding process during welding reduces the welding stress.

[0049] Those skilled in the art can understand that the structures shown in Figure 3 and Figure 4 do not constitute a limitation on the structure of the utility model, and can include more or fewer components than the drawings, or combine certain components, or use different component arrangements.

[0050] It should be understood that the plurality referred to herein refers to two or more than two. The association relationship of the associated objects described by "and / or" indicates that there can be three relationships, for example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally represents that the associated objects before and after it are in an "or" relationship.

[0051] The above is only an exemplary embodiment of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the principles of the present application shall be included in the protection scope of the present application.

Claims

1. A novel differential pressure mold feeder cooling system characterized by, The new differential pressure mold riser cooling system comprises a mold, a cover plate and an inlet and outlet water pipeline; the mold comprises an annular waterway; The cover plate covers the annular waterway; The inlet and outlet water pipeline is connected with the annular waterway for realizing the circulation of the cooling liquid in the annular waterway.

2. The novel differential pressure mold sprue cooling system according to claim 1, wherein, The number of the cover plates is two, and the two cover plates comprise a first cover plate and a second cover plate, and the first cover plate and the second cover plate are sequentially covered on the annular waterway.

3. The novel differential pressure mold sprue cooling system of claim 2, wherein, The cover plates are fixed on the annular waterway by welding to seal the annular waterway.

4. The novel differential pressure mold sprue cooling system of claim 3, wherein, There is a groove between the second cover plate covering the annular waterway and the mold, and the groove is used for welding the cover plate.

5. The novel differential pressure mold sprue cooling system of claim 4, wherein, Before welding, the mold and the cover plate are heated to a first temperature range, and the welding process is carried out in an insulation container.

6. The novel differential pressure mold feeder cooling system according to any one of claims 1-5, wherein, The structure of the annular waterway matches the structure of the mold.

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