A high-efficiency cooling type flow divider cone for a differential pressure mold and a differential pressure mold

Abstract

A high-efficiency cooling manifold cone and differential pressure mold for differential pressure molds are disclosed. The manifold cone body comprises, from bottom to top, a frustum, a gating section, a riser, and a manifold cone tip. An annular water channel is provided inside the manifold cone body, including inlets and outlets located on both sides of the frustum. The annular water channel starts from one edge of the inlet, extends along the edges of the frustum, riser, and manifold cone tip, and circles to the other edge of the frustum and gating section, ultimately connecting to the outlet. This differential pressure casting mold can reduce aluminum adhesion to the manifold cone, improve product efficiency, reduce product deformation, and enhance product mechanical properties, thereby reducing costs.

Description

Technical Field

[0001] This utility model relates to the field of differential pressure casting technology, specifically a high-efficiency cooling diverter cone and differential pressure mold for differential pressure molds. Background Technology

[0002] In differential pressure casting, the product riser needs to be cooled. Current cooling technology uses an internal orifice in the flow divider cone, through which heat is conducted via a point-cooling pipe to cool the riser. For example... Figure 3 A three-dimensional schematic diagram of a traditional flow divider cone for differential pressure casting mold is shown. It can be divided into the flow divider cone body 1, the cooling joint 15, the inlet 3, the outlet 4, the frustum of the flow divider cone 2, the cooling pipe 16, the cooling pipe insertion hole 17, the riser of the flow divider cone 13, and the top of the flow divider cone 14. During production, the molten aluminum enters from the top of the flow divider cone 14 and flows out through the riser 13. In this process, the inserted cooling pipe 16 enters the cooling pipe insertion hole 17 in the straight cylinder space through the inlet 3. The cooling water flows to the riser of the flow divider cone 13 and then returns, flowing through the gap between the cooling pipe 16 and the cooling pipe insertion hole 17, and finally flows out through the outlet 4, completing one cycle, thereby cooling the riser 13 and the top of the flow divider cone 14, and achieving the effect of cooling the molten aluminum. However, this traditional water circuit is limited to a single straight cylinder space, and the water circuit is far from the riser 13 to be cooled and the cooling area is uneven. Although this method is widely used in differential pressure casting, its disadvantages include poor resistance to aluminum adhesion, poor corrosion resistance, long production cycle time, product deformation, and substandard mechanical properties. Furthermore, due to limitations in current processing methods, the water channels cannot accommodate the irregular shape of the flow divider cone, resulting in uneven cooling area, low heat exchange efficiency, and consequently, aluminum adhesion to the flow divider cone surface, long cooling time, low production efficiency, product deformation, and poor mechanical properties. Utility Model Content

[0003] In view of this, the present invention aims to propose a high-efficiency cooling diverter cone and differential pressure mold for differential pressure molds. By cooling the product riser through the conformal water channel inside the diverter cone, the production cycle can be shortened, production efficiency can be improved, and problems such as aluminum adhesion to the diverter cone, product deformation and poor mechanical properties can be improved.

[0004] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0005] A high-efficiency cooling manifold cone and differential pressure mold for differential pressure molds include a manifold cone body, which comprises, from bottom to top, a frustum, a gate, a riser, and a manifold cone tip. An annular water channel is provided inside the manifold cone body. The annular water channel includes an inlet and an outlet located on both sides of the frustum. The annular water channel starts from one edge of the inlet and extends along the edges of the frustum, riser, and manifold cone tip, encircling the other edge of the frustum and gate, and finally connecting to the outlet.

[0006] In some embodiments, the inlet and outlet of the annular waterway are connected to the inlet and outlet waterways, respectively.

[0007] In some embodiments, the inlet and outlet water passages are perpendicular to the bottom of the diversion cone.

[0008] In some embodiments, the horizontal distance between the water inlet and the water outlet is 15 mm.

[0009] In some embodiments, the following components are connected in series between the inlet and outlet: an inlet channel, a second water channel section, a third water channel section, a fourth water channel section, a fifth water channel section, a sixth water channel section, and an outlet channel. The fourth water channel section is 15-20 mm away from the top surface of the diversion cone, the second and third water channels are 10-12 mm away from the surface of the riser, and the inlet and outlet channels are 15-20 mm away from the outer surface of the diversion cone body.

[0010] In some embodiments, the surface of the diversion cone body is provided with a coating.

[0011] In some embodiments, the shunt cone body is made using 3D printing.

[0012] A differential pressure mold, wherein the differential pressure mold is provided with any of the above embodiments of a high-efficiency cooling flow divider cone for differential pressure molds.

[0013] Compared with the prior art, the high-efficiency cooling flow divider cone and differential pressure mold of this utility model have the following advantages:

[0014] This utility model discloses a high-efficiency cooling manifold cone for differential pressure molds. Compared with traditional manifold cones, traditional manifold cones have poor cooling effect, high surface temperature during production, resulting in severe aluminum adhesion, long cooling time, and consequently, low product efficiency, deformation, and poor mechanical properties. The 3D-printed manifold cone, with its internal water channels custom-made to the mold shape, achieves uniform wall thickness, improves mold life, increases cooling area, and removes more heat in the same amount of time, thereby reducing surface temperature, solving the problems of aluminum adhesion, product deformation, and poor mechanical properties, and reducing riser cooling time, thus shortening the production cycle. Attached Figure Description

[0015] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0016] Figure 1 This is a schematic diagram of a high-efficiency cooling flow divider cone for differential pressure molds according to the present invention.

[0017] Figure 2 This is a schematic diagram of the annular water channel of a high-efficiency cooling diverter cone for differential pressure molds according to this utility model.

[0018] Figure 3 This is a schematic diagram of a traditional flow divider cone.

[0019] Figure 4 This is a temperature analysis diagram of a traditional flow divider cone.

[0020] Figure 5 This is a mold temperature analysis diagram of a high-efficiency cooling flow divider cone for differential pressure molds according to this utility model.

[0021] Explanation of reference numerals in the attached figures

[0022] 1. Diverter cone body; 2. Cone section; 3. Inlet; 4. Outlet; 5. Circular water passage; 6. Inlet water passage; 7. Second water passage section; 8. Third water passage section; 9. Fourth water passage section; 10. Fifth water passage section; 11. Sixth water passage section; 12. Outlet water passage; 13. Riser section; 14. Top of diverter cone; 15. Cooling connector; 16. Cooling pipe; 17. Cooling pipe insertion hole. Detailed Implementation

[0023] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0024] 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.

[0025] The following is for reference. Figures 1 to 5 The present invention describes, in conjunction with embodiments, a high-efficiency cooling flow divider cone for differential pressure molds and a differential pressure mold.

[0026] A high-efficiency cooling diverter cone and differential pressure mold for differential pressure molds include: a diverter cone body 1, a cone frustum 2, a water inlet 3, a water outlet 4, an annular water channel 5, a riser 13, and a diverter cone tip 14. During production, molten aluminum enters through the diverter cone tip 14, flows out through the riser 13 and the cone frustum 2, and cool water enters through the water inlet 3, flows through the water inlet channel 6 into the annular water channel 5, then through the water outlet channel 12, and finally flows out from the water outlet 4, completing one cycle.

[0027] At the bottom of the diversion cone body 1, the inlet 3 and the outlet 4 are located opposite each other on both sides of the frustum 1. The internal water channel structure between them is as follows: the water channel follows the shape of the diversion cone, starting from the right side of the frustum 2 and extending along the edges of the frustum 2, the diversion cone body 1, the riser 13 and the top of the diversion cone 14, and then around to the left edge of the frustum 2 and the riser 13, and finally connecting to the outlet 4. Thus, the following multiple water channel segments are connected in sequence in this internal water channel: inlet channel 6 → second water channel segment 7 → third water channel segment 8 → fourth water channel segment 9 → fifth water channel segment 10 → sixth water channel segment 11 → outlet channel 12. Preferably, these water passages are arranged approximately symmetrically to form the entire cooling circulation path, with the inlet 3 as the starting position of the water passage and the outlet 4 as the ending position. The distance between the inlet water passage 6, which is perpendicular to the bottom of the split cone and located on the side of the inlet 3, and the outlet water passage 12, which is located on the side of the outlet 4, is 15mm. The distance between the fourth water passage 9 and the top surface 13 of the split cone is 15-20mm. The distance between the second water passage 7 and the third water passage 8 and the surface of the riser 13 is 10-12mm. The distance between the inlet water passage 6 and the outlet water passage 12 and the outer surface of the split cone body 1 is 15-20mm.

[0028] Compared to the traditional method, this method has a uniform wall thickness, which prevents internal stress concentration and fatigue cracking during production and use due to alternating hot and cold temperatures. At the same time, the water channel distribution is not limited by traditional machining. The water channels are arranged in layers, increasing the heat exchange area by eight times.

[0029] Figure 4 , Figure 5 The mold temperature analysis diagrams for the traditional flow divider cone and the 3D printed flow divider cone according to this utility model show that, under the same inlet water pressure and cooling time, the surface temperature of the 3D printed flow divider cone (temperature 343.2°C) is 108.7°C lower than that of the traditional flow divider cone (temperature 451.9°C).

[0030] Preferably, a differential pressure mold according to the present invention includes the above-mentioned flow divider cone and its internal conformal water channel with a water channel diameter of 6mm. The flow divider cone and the conformal water channel are made of 3D printing special mold steel powder material.

[0031] 3D printing (also known as additive manufacturing or layer-by-layer manufacturing) is a technology that uses digital model files as a basis and employs powdered metals or plastics and other bondable materials to construct objects layer by layer. This technology was first proposed in the United States in the mid-1980s. 3D printing is commonly used in mold making and industrial design to create models, and has gradually been applied to the direct manufacturing of some products. It has profoundly impacted traditional processes, production lines, factory models, and supply chain structures, making it a representative disruptive technology in the manufacturing industry.

[0032] In some embodiments, by shortening the cooling time by 83s and reducing the cycle time, 50 molds were produced continuously, the mold temperature was collected, and compared with the ordinary split cone without reducing the cycle time. It can be seen that the cooling effect of the 3D printed split cone is significantly better than that of the ordinary split cone, which can reduce the temperature by about 108.7℃.

[0033] In some embodiments, the 3D printed flow divider cone was continuously produced on-machine for 21,000 cycles. The flow divider cone was in good condition, with a 33.3% increase in output, a yield rate of 97.3%, improved product deformation, and a 2.6% increase in mechanical strength. At the same time, the cost per kilogram was reduced by 0.33 yuan / kg. The lifespan and efficiency are being continuously explored and improved.

[0034] In some embodiments, the flow divider cone employs surface shot peening and ADT coating technology to improve surface hardness and roughness, remove internal stress, and simultaneously provide anti-aluminum adhesion and anti-corrosion effects, thereby increasing the lifespan of the flow divider cone.

[0035] Compared with existing technologies, the high-efficiency cooling flow divider cone and differential pressure mold of this invention have the following advantages:

[0036] Traditional manifolds suffer from poor cooling performance, resulting in high surface temperatures during production, severe aluminum adhesion, and prolonged cooling times. This leads to problems such as low product efficiency, deformation, and poor mechanical properties. 3D-printed manifolds, however, feature customizable internal water channels, enabling uniform wall thickness, extended mold life, and increased cooling area. They can remove more heat within the same timeframe, thus reducing surface temperature, resolving issues like aluminum adhesion, product deformation, and poor mechanical properties, while also shortening riser cooling time and production cycle time.

[0037] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to facilitate the description of this utility model and to simplify the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0038] Furthermore, 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 technical features indicated. Thus, 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 at least two, such as two, three, etc., unless otherwise explicitly specified.

[0039] 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, an electrical connection, or a connection that allows communication between them; 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0040] The above are merely preferred embodiments of the present utility model and are 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 shall be included within the protection scope of the present utility model.

Claims

1. A high-efficiency cooling diverging cone for a differential pressure mold, characterized by, The device includes a flow divider cone body, which, from bottom to top, comprises a frustum section, a gating section, a riser section, and a flow divider cone tip. An annular water channel is provided inside the flow divider cone body. The annular water channel includes inlets and outlets located on both sides of the frustum section. The annular water channel starts from one edge of the inlet and extends along the edges of the frustum section, riser section, and flow divider cone tip, encircling the other edge of the frustum section and gating section, and finally connecting to the outlet.

2. The high-efficiency cooling flow divider cone for differential pressure molds according to claim 1, characterized in that, The inlet and outlet of the ring-shaped waterway are connected to the inlet and outlet waterways, respectively.

3. The high-efficiency cooling flow divider cone for differential pressure molds according to claim 2, characterized in that, The inlet and outlet water passages are perpendicular to the bottom of the diversion cone.

4. The high-efficiency cooling flow divider cone for differential pressure molds according to claim 3, characterized in that, The horizontal distance between the water inlet and the water outlet is 15mm.

5. The high-efficiency cooling flow divider cone for differential pressure molds according to claim 3, characterized in that, The inlet and outlet are connected in series with the following sections: inlet, second, third, fourth, fifth, sixth, and outlet. The fourth section is 15-20 mm from the top surface of the diversion cone, the second and third sections are 10-12 mm from the surface of the riser, and the inlet and outlet are 15-20 mm from the outer surface of the diversion cone.

6. The high-efficiency cooling flow divider cone for differential pressure molds according to claim 3, characterized in that, The surface of the flow divider cone is coated.

7. The high-efficiency cooling flow divider cone for differential pressure molds according to claim 3, characterized in that, The flow divider cone body is made using 3D printing.

8. A differential pressure mold, characterized in that, The differential pressure mold is provided with the high-efficiency cooling flow divider cone for differential pressure molds as described in any one of claims 1-7.

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