High-efficiency cooling structure of semi-solid forming die

Abstract

The utility model discloses a kind of efficient cooling structure of semi-solid forming die, including die body, the die body is equipped with for forming the cavity of part to be formed and cooling system, the cooling system includes main liquid inlet manifold and main liquid outlet manifold, both parallel installation in the both sides of die body;The cavity includes forming area and gate area, the forming area is connected with cavity branch pipe, the gate area is connected with gate branch pipe, the import of the cavity branch pipe and gate branch pipe is communicated with main liquid inlet manifold, the outlet of the gate branch pipe is communicated with main liquid outlet manifold.The utility model has the beneficial effects: through the partition design of main liquid inlet manifold and main liquid outlet manifold, the independent cooling of forming area and gate area is realized, cooling is evenly efficient, and part quality is improved;It reaches the purpose of good cooling uniformity, high efficiency.

Description

Technical Field

[0001] This utility model relates to the field of metal or alloy forming mold technology, and specifically to a high-efficiency cooling structure for a semi-solid forming mold. Background Technology

[0002] Semi-solid forming technology is an advanced metal forming process. In this process, the cooling efficiency and uniformity of the mold directly determine the forming cycle, internal structure, mechanical properties, and surface quality of the finished product. Traditional mold cooling systems typically employ straight orifice or simple curved channel channels, with coolant flow mostly laminar, resulting in low heat exchange efficiency and difficulty in achieving differentiated and precise cooling for different areas of the mold (such as the high-temperature gate area and the cavity body). This easily leads to uneven cooling of the finished product, causing defects such as shrinkage cavities, deformation, and hot spots, while also limiting further reduction in production cycle time. Therefore, there is an urgent need for a mold structure that can achieve efficient, uniform, and controllable cooling. Utility Model Content

[0003] The present invention aims to solve the problems of poor cooling uniformity and low efficiency mentioned in the background art, and provides a high-efficiency cooling structure for semi-solid molding molds with good cooling uniformity and high efficiency.

[0004] A high-efficiency cooling structure for a semi-solid molding die includes a die body. The die body contains a cavity for forming a part to be molded and a cooling system. The cooling system includes a main inlet manifold and a main outlet manifold, which are installed parallel to each other on both sides of the die body. The cavity includes a forming area and a gate area. The forming area is connected to a cavity branch pipe, and the gate area is connected to a gate branch pipe. The inlets of both the cavity branch pipe and the gate branch pipe are connected to the main inlet manifold, and the outlet of the gate branch pipe is connected to the main outlet manifold.

[0005] By setting up parallel main inlet and outlet manifolds, a simple and efficient coolant delivery and recovery backbone network is formed, simplifying the complex piping layout inside the mold. The cavity is divided into a molding zone and a gate zone, each connected to the main inlet manifold via independent branch channels, enabling targeted cooling of different heat load areas of the mold. The gate zone typically solidifies first and requires stronger cooling, while the main cavity body needs uniform cooling to prevent defects. This design provides a basis for differentiated cooling, effectively improving the uniformity and controllability of cooling, thereby improving product quality. It achieves the goal of good cooling uniformity and high efficiency.

[0006] Preferably, a cooling insert is detachably installed on the mold body. The end face of the cooling insert forms the forming surface of the cavity. A spiral turbulent flow channel is provided within the cooling insert. The outlet of the cavity branch pipe is connected to the inlet of the spiral turbulent flow channel, and the outlet of the spiral turbulent flow channel is connected to the main liquid outlet manifold. The use of a detachable cooling insert makes the mold highly modular and flexible. When the product is changed or the mold is repaired, only the cooling insert needs to be replaced or maintained, reducing costs and downtime. The spiral turbulent flow channel within the insert forces the coolant to spiral forward, greatly enhancing the flow turbulence, breaking the thermal boundary layer, and significantly improving heat exchange efficiency. This allows heat from the cavity surface to be carried away more quickly, accelerating product solidification.

[0007] Preferably, a hollow column and spirally extending fins are installed at the center of the cooling insert. The fins are integrally formed with the central column, thereby creating a spiral turbulent flow channel. The cooling insert adopts an integrated structure of hollow column and spiral fins. The fins and the inner wall of the insert form a spiral turbulent flow channel, resulting in a compact and high-strength structure. The spiral fins guide the coolant to generate strong turbulence, achieving efficient and uniform cooling of the cavity molding surface.

[0008] Preferably, the mold body has an installation groove, the cooling insert is placed in the installation groove, and the tail of the cooling insert has a radially protruding shoulder. The side mold body has a groove that matches the shoulder, and a clamping nut is threaded into the groove. The clamping nut is axially connected to the shoulder, and the cooling insert is detachably connected to the mold body through the cooperation of the shoulder and the clamping nut. A sealing ring is embedded at the joint between the cooling insert and the installation hole. The cooperation of the shoulder and the clamping nut enables quick installation and fixation of the cooling insert, and the sealing ring ensures no leakage at the connection. This simplifies the mold assembly and disassembly process, improves maintenance efficiency, and ensures the sealing reliability of the cooling system.

[0009] Preferably, the mold body is further provided with an vent hole communicating with the installation position of the cooling insert, and the vent hole extends to the outside of the mold body. The vent hole can remove air at the installation position of the cooling insert, avoid cavitation, ensure that the coolant fills the flow channel, and improve cooling stability and efficiency; the vent hole extends to the outside of the mold, which is convenient for operators to monitor and vent air.

[0010] Preferably, the main inlet manifold has a first diversion hole on its wall that communicates with the inlets of the cavity branch pipe and the gate branch pipe, and the main outlet manifold has a second diversion hole on its wall that communicates with the outlet of the spiral turbulent flow channel and the gate branch pipe. The diversion hole design on the main inlet and main outlet manifolds allows the coolant to be evenly distributed through the cavity branch pipe and the gate branch pipe, reducing pressure loss, optimizing fluid distribution, and further improving cooling uniformity and system efficiency.

[0011] The beneficial effects of this utility model are as follows: the partitioned design of the main inlet manifold and the main outlet manifold enables independent cooling of the molding zone and the gate zone, resulting in uniform and efficient cooling and improved part quality; the spiral turbulent channel in the cooling insert enhances heat exchange, and the turbulent effect improves the cooling rate; the cooling insert is detachable, facilitating maintenance and replacement; thus, it achieves the goal of good cooling uniformity and high efficiency. Attached Figure Description

[0012] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

[0013] Figure 1 This is a cross-sectional schematic diagram of the present invention;

[0014] Figure 2 This is a schematic diagram of the cooling insert structure;

[0015] Figure 3 This is a split cross-sectional view of the cooling insert and the mold body mounting area.

[0016] The components are as follows: 1. Mold body, 2. Molding area, 3. Gating area, 4. Main inlet manifold, 41. First branch hole, 5. Main outlet manifold, 51. Second branch hole, 6. Cavity branch pipe, 7. Gating branch pipe, 8. Cooling insert, 9. Spiral turbulent flow channel, 10. Hollow column, 11. Spiral fin, 12. Shoulder, 13. Compression nut, 14. Mounting groove, 15. Sealing ring, 16. Vent hole, 17. Groove. Detailed Implementation

[0017] The present invention will be further described below with reference to specific embodiments, but the present invention is not limited to the embodiments.

[0018] In the description of this utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and "vertical" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying 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 limitations on this utility model.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; or they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] Furthermore, in the description of this utility model, unless otherwise stated, "multiple", "multiple groups", and "multiple roots" mean two or more.

[0021] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments;

[0022] like Figure 1 As shown, a high-efficiency cooling structure for a semi-solid molding mold includes a mold body 1. The mold body 1 is provided with a cavity for forming the part to be molded and a cooling system. The cooling system includes a main inlet manifold 4 and a main outlet manifold 5, which are installed in parallel on both sides of the mold body 1. The cavity includes a molding area 2 and a gate area 3. The molding area 2 is connected to a cavity branch pipe 6, and the gate area 3 is connected to a gate branch pipe 7. The inlets of both the cavity branch pipe 6 and the gate branch pipe 7 are connected to the main inlet manifold 4, and the outlet of the gate branch pipe 7 is connected to the main outlet manifold 5.

[0023] like Figure 2 As shown, a cooling insert 8 is detachably installed on the mold body 1. The end face of the cooling insert 8 forms the forming surface of the cavity. A spiral turbulent flow channel 9 is provided inside the cooling insert 8. The outlet of the cavity branch pipe 6 is connected to the inlet of the spiral turbulent flow channel 9. The outlet of the spiral turbulent flow channel 9 is connected to the main liquid outlet manifold 5.

[0024] A hollow column 10 is installed at the center of the cooling insert 8, and fins 11 extend spirally around the hollow column 10. The fins 11 and the hollow column 10 are integrally formed to form a spiral turbulent flow channel 9.

[0025] like Figure 3 As shown, the mold body 1 has an installation groove 14, and the cooling insert 8 is placed in the installation groove 14. The tail of the cooling insert 8 has a shoulder 12 that protrudes radially. The mold body 1 has a groove 17 that matches the shoulder 12. A clamping nut 13 is threaded into the groove 17. The clamping nut 13 is axially connected to the shoulder 12. The cooling insert 8 is detachably connected to the mold body 1 through the cooperation of the shoulder 12 and the clamping nut 13. A sealing ring 15 is embedded at the joint between the cooling insert 8 and the installation groove 14.

[0026] The mold body 1 is also provided with an exhaust hole 16 that communicates with the installation position of the cooling insert 8, and the exhaust hole 16 extends to the outside of the mold body 1.

[0027] The main inlet manifold 4 has a first branch hole 41 that communicates with the inlet of the cavity branch pipe 6 and the gate branch pipe 7. The main outlet manifold 5 has a second branch hole 51 that communicates with the outlet of the spiral turbulent channel 9 and the gate branch pipe 7.

[0028] One embodiment of this utility model:

[0029] like Figure 1 As shown, this structure is integrated into the mold body 1. For the molding area 2, its cooling core is a removable cooling insert 8. Figure 3 As shown, the cooling insert 8 is fixed by the shoulder 17 at its tail and the clamping nut 13 threadedly connected to the mounting groove 14 of the mold body 1, and is sealed by the sealing ring 15.

[0030] like Figure 1 and Figure 2 As shown, the cooling insert 8 has a spiral turbulent flow channel 9 inside, which is composed of a hollow column 10 and fins 11 spirally extending around it. The fins 11 and the inner wall of the insert form the spiral turbulent flow channel 9. After the coolant from the cavity branch channel 6 enters this spiral turbulent flow channel 9, it forms strong turbulence and performs efficient heat exchange with the insert end face that constitutes the cavity surface. The hot coolant after heat exchange flows from the channel outlet into the main outlet manifold 5 and is discharged in a concentrated manner.

[0031] like Figure 1 As shown, the coolant enters from the main inlet manifold 4, and is branched through the first branch hole 41 to the cavity branch pipe 6 and the gate branch pipe 7. The coolant in the cavity branch pipe 6 enters the spiral turbulent flow channel 9 of the cooling insert 8, forming turbulent cooling of the cavity surface, and then flows into the main outlet manifold 4 from the outlet. The coolant in the gate branch pipe 7 flows directly into the main outlet manifold 5. Figure 3 As shown, vent 16 removes air to ensure the coolant is full.

[0032] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although this utility model has been described in detail with reference to the embodiments, those skilled in the art should understand that modifications and equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A high-efficiency cooling structure for a semi-solid molding die, comprising a die body (1), wherein the die body (1) is provided with a cavity for forming a part to be molded and a cooling system, characterized in that, The cooling system includes a main inlet manifold (4) and a main outlet manifold (5), which are installed in parallel on both sides of the mold body (1); the cavity includes a molding area (2) and a gate area (3), the molding area (2) is connected to a cavity branch pipe (6), the gate area (3) is connected to a gate branch pipe (7), the inlets of the cavity branch pipe (6) and the gate branch pipe (7) are connected to the main inlet manifold (4), and the outlet of the gate branch pipe (7) is connected to the main outlet manifold (5).

2. The high-efficiency cooling structure for a semi-solid molding die according to claim 1, characterized in that, A cooling insert (8) is detachably installed on the mold body (1). The end face of the cooling insert (8) forms the forming surface of the cavity. A spiral turbulent flow channel (9) is provided inside the cooling insert (8). The outlet of the cavity branch pipe (6) is connected to the inlet of the spiral turbulent flow channel (9). The outlet of the spiral turbulent flow channel (9) is connected to the main liquid outlet manifold (5).

3. The high-efficiency cooling structure for a semi-solid molding die according to claim 2, characterized in that, The cooling insert (8) has a hollow column (10) installed at its center and fins (11) spirally extending around the hollow column (10). The fins (11) are integrally formed with the hollow column (10) to form a spiral turbulent flow channel (9).

4. The high-efficiency cooling structure for a semi-solid molding die according to claim 3, characterized in that, The mold body (1) is provided with an installation groove (14), the cooling insert (8) is placed in the installation groove (14), the tail of the cooling insert (8) has a shoulder (12) protruding radially, the mold body (1) is provided with a groove (17) matching the shoulder (12), the groove (17) is threaded with a clamping nut (13), the clamping nut (13) is axially connected to the shoulder (12), the cooling insert (8) is detachably connected to the mold body (1) through the cooperation of the shoulder (12) and the clamping nut (13), and a sealing ring (15) is embedded at the joint between the cooling insert (8) and the installation groove (14).

5. The high-efficiency cooling structure for a semi-solid molding die according to claim 4, characterized in that, The mold body (1) is also provided with an exhaust hole (16) that communicates with the installation position of the cooling insert (8), and the exhaust hole (16) extends to the outside of the mold body (1).

6. The high-efficiency cooling structure for a semi-solid molding die according to claim 1, characterized in that, The main inlet manifold (4) has a first branch hole (41) on its wall that is connected to the inlet of the cavity branch pipe (6) and the gate branch pipe (7). The main outlet manifold (5) has a second branch hole (51) on its wall that is connected to the outlet of the spiral turbulent channel (9) and the gate branch pipe (7).

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