Radiator die

By setting cooling tanks and clearance boxes in the radiator mold, and combining the alternating use of hot and cold water, the problem of coolant affecting molding quality during injection molding is solved, and rapid cooling and efficient production of the radiator shell are achieved.

CN223777689UActive Publication Date: 2026-01-09DONGGUAN YOUMEI TECH CO LTD
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Patent Information

Application Number
CN202520307388.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-25
Publication Date
2026-01-09
Estimated Expiration
2035-02-25

AI Technical Summary

Technical Problem

In the prior art, the continuous flow of coolant in the cooling channel of the radiator mold during the injection molding process can easily cause the injection molding material to solidify before it is formed, affecting the molding quality and efficiency.

Method used

A cooling tank and a relief box are set in the lower mold of the radiator mold. The lifting and lowering of the sealing plate is controlled by a hydraulic cylinder to achieve precise control of the coolant and avoid contact between the cooling tank and the molding tank. Combined with the alternating use of hot and cold water, the radiator shell is gradually cooled down.

Benefits of technology

This effectively avoids the solidification problem caused by the cooling of injection molding raw materials before molding, ensuring molding quality, while accelerating the production efficiency and cooling effect of the radiator shell and improving its practicality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of radiator dies, and discloses a radiator die which comprises a lower die, an upper die and a forming groove formed in the lower die, and a support is installed on the bottom face of the lower die. The cooling groove used for cooling the interior of the forming groove is formed in the lower die, the receding box communicated with the cooling groove is arranged, the sealing disc in the receding box is controlled to descend, and then the amount of liquid entering the position above the sealing disc is controlled; the liquid does not make contact with the adjacent face of the cooling groove and the forming groove, when the formed radiator shell needs to be cooled, the sealing disc ascends, the cooling groove is filled with cooled cold water, heat of the radiator shell is taken away, and the problem that the forming quality is affected due to the fact that raw materials are cooled in the flowing process is solved. And meanwhile, the radiator shell can be continuously cooled through cold water after being formed, so that the production efficiency of the radiator shell is improved, and the practicability is improved.
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Description

Technical Field

[0001] This utility model relates to the field of radiator mold technology, specifically a radiator mold. Background Technology

[0002] A radiator is a device that uses the principle of heat transfer to transfer heat energy from a heat source to the air or other media. Its working principle is based on heat conduction and convection heat transfer. By increasing the surface area, increasing the heat conduction path, and increasing the flow rate of the heat exchange medium, heat is dissipated from the heat source, thereby reducing the temperature of the heat source.

[0003] Radiators are made of different materials depending on their application and usage. Generally, radiator shells are injection molded. To improve the injection molding efficiency of radiator shells, existing technologies set up cooling channels in the outer mold, with cold water or coolant flowing in the channels to cool the radiator shell after injection molding and improve molding efficiency. However, in actual use, cooling is continuous, and the injection material needs to be molded before it can be cooled. If cooling is carried out during the injection process, the material may solidify before it is fully formed, affecting the molding effect and quality. Therefore, a radiator mold is proposed. Utility Model Content

[0004] In view of the shortcomings of the prior art, this utility model provides a radiator mold to solve the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a radiator mold, comprising a lower mold, an upper mold, and a forming groove formed on the lower mold. A bracket is installed on the bottom surface of the lower mold, and a cooling groove surrounding the forming groove is formed on the bottom surface of the lower mold. A relief box communicating with the cooling groove is installed on the bottom surface of the lower mold. A hydraulic cylinder is installed below the lower mold. The output end of the hydraulic cylinder passes through the relief box and is fixedly connected to a sealing disc that slides inside the relief box. An inlet pipe and an outlet pipe pass through the sealing disc, and the other ends of the inlet pipe and the outlet pipe both extend to the outside of the relief box.

[0006] Preferably, the water inlet pipe includes a sealing pipe located below the lower mold, the side wall of the sealing pipe has a sliding opening, a connecting pipe is slidably connected inside the sealing pipe, and a water supply pipe slidably connected to the sliding opening is connected to the connecting pipe. One end of the water supply pipe passes through the relief box and the sealing plate to supply water into the cooling tank. A hot water pipe and a cold water pipe are connected to the sealing pipe, and the hot water pipe and the cold water pipe respectively supply hot water and cold water to the connecting pipe.

[0007] Preferably, the hot water pipe and the cold water pipe are respectively connected to both ends of the sealing pipe, and the length of the connecting pipe is equal to the distance between the hot water pipe and the cold water pipe.

[0008] Preferably, a first baffle is fixedly connected to the inner wall of the upper end of the water supply pipe, and a connecting rod is fixedly connected to the bottom surface of the cooling tank. One end of the connecting rod passes through the first baffle and extends into the water supply pipe and is fixedly connected to a second baffle. Both the first baffle and the second baffle have staggered diversion ports.

[0009] Preferably, the water supply pipe has a drainage rate per minute higher than that of the water outlet pipe.

[0010] Preferably, the water supply pipe and the water outlet pipe are respectively inserted through the two ends of the sealing disc at symmetrical positions.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] This invention features a cooling tank within the lower mold for dissipating heat from the molding groove, and a relief box connected to the cooling tank. By controlling the descent of a sealing disc within the relief box, the amount of liquid entering above the sealing disc is controlled. During material input into the molding groove, the sealing disc descends, preventing the liquid from contacting the adjacent surfaces of the cooling tank and the molding groove. When heat dissipation is needed for the molded radiator shell, the sealing disc rises, filling the cooling tank with cooled water and carrying away the heat from the radiator shell. This avoids the problem of cooling during the material flow process, which could affect the molding quality. Furthermore, after molding, the material can continue to be cooled with cold water, accelerating the production efficiency of the radiator shell and improving its practicality.

[0013] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures pointed out in the description, claims, and drawings. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a cross-sectional schematic diagram of the overall structure of this utility model;

[0016] Figure 3 This is a cross-sectional schematic diagram of another state of the sealing disc of this utility model;

[0017] Figure 4 This is a detailed structural diagram of the water inlet pipe of this utility model;

[0018] Figure 5 This is a schematic diagram of the structure of the first baffle, the second baffle, and the connecting rod of this utility model.

[0019] In the diagram: 1. Lower mold; 2. Upper mold; 3. Forming groove; 4. Support; 5. Cooling groove; 6. Relief box; 7. Hydraulic cylinder; 8. Sealing disc; 9. Water inlet pipe; 91. Sealing pipe; 92. Sliding port; 93. Connecting pipe; 94. Cold water pipe; 95. Hot water pipe; 96. Water supply pipe; 10. Water outlet pipe; 11. First baffle; 12. Connecting rod; 13. Second baffle; 14. Diverter port. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-5This utility model discloses a radiator mold, comprising a lower mold 1, an upper mold 2, and a forming groove 3 formed on the lower mold 1. The forming groove 3, together with the upper mold 2, forms a forming cavity for the radiator shell. Raw material enters the forming cavity and cools to form the radiator shell. A support 4 is installed on the bottom surface of the lower mold 1, supporting the lower mold 1. A cooling groove 5 is formed on the bottom surface of the lower mold 1, surrounding the forming groove 3. A relief box 6 communicating with the cooling groove 5 is installed on the bottom surface of the lower mold 1. A hydraulic cylinder 7 is installed below the lower mold 1. The output end of the hydraulic cylinder 7 passes through the relief box 6 and is fixedly connected to a sealing disc 8 sliding within the relief box 6. A water inlet pipe 9 and a water outlet pipe 10 pass through the sealing disc 8, with the other ends of both pipes extending outside the relief box 6. After the radiator shell is formed, the hydraulic cylinder 7 drives the sealing disc 8 to rise until the upper surface of the sealing disc 8 is parallel to the bottom surface of the lower mold 1. Water flows into the internal space of the relief box 6 through the water inlet pipe 9 into the cooling groove 5. Cold water is supplied internally. After the cold water enters and fills the cooling tank 5, it carries away the heat from the radiator shell being formed in the forming tank 3, allowing it to cool and solidify rapidly. Simultaneously, the water that has absorbed heat is discharged through the outlet pipe 10, thus achieving rapid cooling of the radiator shell. After cooling is complete, the operator removes the radiator shell from the forming tank 3. At this time, the hydraulic cylinder 7 descends, which in turn drives the sealing plate 8 to descend, allowing the water in the cooling tank 5 to quickly enter the relief box 6, preventing the water from contacting the inner wall of the cooling tank 5 near the forming tank 3. Then, after the upper mold 2 and lower mold 3 are closed and the raw material is injected into the forming tank 3, the inlet pipe 9 continues to supply cold water to the relief box 6, which is then continuously discharged through the outlet pipe 10. This prevents the raw material still being supplied to the forming tank 3 from being cooled, avoiding the problem of cooling during the material's flow and affecting the forming quality. At the same time, after forming, it can continue to be cooled by cold water, accelerating the production efficiency of the radiator shell and improving its practicality.

[0022] The water inlet pipe 9 includes a sealing pipe 91 located below the lower mold 1. The sealing pipe 91 can be fixed on the worktable. A sliding opening 92 is provided on the side wall of the sealing pipe 91. A connecting pipe 93 is slidably connected inside the sealing pipe 91. A water supply pipe 96 is connected to the connecting pipe 93 and is slidably connected to the sliding opening 92. One end of the water supply pipe 96 passes through the relief box 6 and the sealing plate 8 to supply water to the relief box 6 and the cooling tank 5. A hot water pipe 95 and a cooling pipe 93 are connected to the sealing pipe 91. The hot water pipe 95 and the cooling pipe 93 respectively supply hot water and cold water to the connecting pipe 93. Thus, when cooling the formed radiator shell, hot water can be supplied to the cooling tank 5 first, and then gradually cooled down with cold water, thereby achieving gradual cooling of the radiator shell and preventing the radiator shell from suddenly encountering cold at high temperature, which would cause problems such as surface bubbles, thus improving practicality.

[0023] Hot water pipe 95 and cold water pipe 93 are connected to both ends of sealing pipe 91 respectively. The length of connecting pipe 93 is equal to the distance between hot water pipe 95 and cold water pipe 93. When hydraulic cylinder 7 drives sealing disc 8 to rise, sealing disc 8 drives water supply pipe 96 to rise. Water supply pipe 92 slides in sliding port 92 and drives connecting pipe 93 to rise in sealing pipe 91. When sealing pipe 91 is at its bottom, sealing pipe 91 completely blocks the connection between cold water pipe 93 and sealing pipe 91, and the connection between hot water pipe 95 and sealing pipe 91 is fully open. As connecting pipe 93 rises, the connection between cold water pipe 93 and sealing pipe 91 gradually opens. At the same time, the connection between hot water pipe 95 and sealing pipe 91 is gradually blocked by connecting pipe 93, thereby gradually reducing the water temperature delivered to cooling tank 5 through connecting pipe 93 and water supply pipe 96, realizing automatic water temperature control, gradually cooling the radiator shell, and improving practicality.

[0024] A first baffle 11 is fixedly connected to the inner wall of the upper end of the water conveying pipe 92. A connecting rod 12 is fixedly connected to the bottom surface of the cooling tank 5. One end of the connecting rod 12 passes through the first baffle 11 and extends into the water conveying pipe 92, where a second baffle 13 is fixedly connected. Both the first baffle 11 and the second baffle 13 have staggered diversion ports 14. The conveyed water passes through the diversion port 14 on the second baffle 13 along the water conveying pipe 92 and then through the diversion port 14 on the first baffle 13 into the cooling tank 5 to achieve water intake. When the raw material needs to be shaped, it does not need to be shaped. When cooling is required, the sealing disc 8 descends, which in turn causes the water delivery pipe 92 to descend, thereby bringing the first baffle 11 closer to the second baffle 13 until the first baffle 11 and the second baffle 13 are in complete contact. At this time, the first baffle 11 and the second baffle 13 block each other's diversion ports 14, thereby preventing water from continuing to flow into the cooling tank 5. At this time, water only needs to be drained through the drain pipe 10, and the water in the cooling tank 5 will continue to be discharged without increasing, ensuring that the raw material is stably formed after entering the forming tank 3 and reducing the impact of cooling.

[0025] The water flow rate of the water delivery pipe 92 is higher than that of the water outlet pipe 10. Therefore, when the radiator shell needs to be cooled, the water inflow into the cooling tank 5 is greater than the water outflow during the rising process of the sealing plate 8, thus ensuring sufficient cooling of the radiator shell. At the same time, when the raw material enters the molding tank 3 for molding, the sealing plate 8 descends, controlling the water delivery pipe 92 to stop water from continuing to flow in. The water in the cooling tank 5 falls into the relief box 6, and then the water is continuously discharged through the water outlet pipe 10, ensuring the molding quality and production efficiency of the radiator shell.

[0026] Water delivery pipe 92 and water outlet pipe 10 are respectively installed at symmetrical positions at both ends of sealing plate 10 to ensure that the water entering the cooling tank 5 can fully dissipate heat from the radiator shell before being discharged from the water outlet pipe 10, thereby improving the efficiency of heat exchange.

Claims

1. A radiator mold, comprising a lower mold (1), an upper mold (2), and a forming groove (3) formed on the lower mold (1), characterized in that, A bracket (4) is installed on the bottom surface of the lower mold (1). A cooling groove (5) is opened on the bottom surface of the lower mold (1) surrounding the forming groove (3). A relief box (6) communicating with the cooling groove (5) is installed on the bottom surface of the lower mold (1). A hydraulic cylinder (7) is installed below the lower mold (1). The output end of the hydraulic cylinder (7) passes through the relief box (6) and is fixedly connected to a sealing plate (8) that slides inside the relief box (6). A water inlet pipe (9) and a water outlet pipe (10) are passed through the sealing plate (8). The other ends of the water inlet pipe (9) and the water outlet pipe (10) both extend to the outside of the relief box (6).

2. A radiator mold according to claim 1, characterized in that, The water inlet pipe (9) includes a sealing pipe (91) located below the lower mold (1). The side wall of the sealing pipe (91) is provided with a sliding opening (92). A connecting pipe (93) is slidably connected inside the sealing pipe (91). A water supply pipe (96) slidably connected to the sliding opening (92) is connected to the connecting pipe (93). One end of the water supply pipe (96) passes through the relief box (6) and the sealing plate (8) to supply water into the cooling tank (5). A hot water pipe (95) and a cold water pipe (94) are connected to the sealing pipe (91). The hot water pipe (95) and the cold water pipe (94) respectively supply hot water and cold water to the connecting pipe (93).

3. A radiator mold according to claim 2, characterized in that, The hot water pipe (95) and the cold water pipe (94) are respectively connected to both ends of the sealing pipe (91), and the length of the connecting pipe (93) is equal to the distance between the hot water pipe (95) and the cold water pipe (94).

4. A radiator mold according to claim 2, characterized in that, The upper inner wall of the water supply pipe (96) is fixedly connected to a first baffle (11), and the bottom surface of the cooling tank (5) is fixedly connected to a connecting rod (12). One end of the connecting rod (12) passes through the first baffle (11) and extends into the water supply pipe (96) and is fixedly connected to a second baffle (13). Both the first baffle (11) and the second baffle (13) are provided with staggered diversion ports (14).

5. A radiator mold according to claim 4, characterized in that, The water supply pipe (96) has a higher drainage rate per minute than the water outlet pipe (10).

6. A radiator mold according to claim 2, characterized in that, The water supply pipe (96) and the water outlet pipe (10) are respectively installed at the two symmetrical positions of the sealing disc (8).