Self-cooling assembly of precision mold

Abstract

The utility model relates to the technical field of dies, in particular to a self-cooling assembly of a precision die, which comprises a die. A water tank for supporting the mold is arranged below the mold; a water supply assembly is installed in the water inlet chamber and comprises a water pump fixed to the bottom in the water inlet chamber, a first bent pipe is installed at a water outlet of the water pump, and a second bent pipe is arranged above the first bent pipe; when the mold is arranged at the top of the water tank, the second connecting port is inserted into the water inlet hole, the first connecting port is inserted into the water drainage hole, at the moment, the water pump conveys a cooling water source in the water inlet cavity into the multiple cooling flow channels, and when the cooling water source flows in the cooling flow channels, the cooling water source can take away heat of the mold; therefore, the cooling effect on the mold is achieved; by means of the design, the precise mold can be directly cooled, and the strict requirements of the mold for cooling efficiency and quality in the high-speed and high-precision pouring process are met.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, specifically to a self-cooling component for precision molds. Background Technology

[0002] During the use of molds, especially in processes such as injection molding and die casting, molds absorb a large amount of heat due to contact with high-temperature materials. If the mold temperature is too high, it will affect the quality of the molded product. At the same time, excessively high temperatures will also accelerate mold wear, reduce mold life, and increase production costs; therefore, rapid cooling of molds is essential.

[0003] Utility model patent with authorization announcement number CN202222203560.X discloses a self-cooling mold for pump body casting. The self-cooling mold for pump body casting includes an upper mold, a pouring pipe, a lower mold, a guide rod, and a guide groove. The top of the lower mold has a guide groove. The bottom of the upper mold is fixedly connected to the guide rod. The outer wall of the guide rod is detachably connected to the inner wall of the guide groove. The top of the lower mold is movably connected to the bottom of the upper mold. The top of the upper mold is embedded in the pouring pipe. A cooling seat is provided directly below the lower mold. A support strip is fixedly connected to the inner wall of the cooling seat. A limit strip is fixedly connected to the outer wall of the lower mold. The bottom of the limit strip overlaps with the top of the support strip. Through the coordination of the tie rod, fixing plate, protective cover, graphite heat-conducting plate, heat dissipation plate, cooling seat, limiting strip, and support strip, the support strip can support the limiting strip, which facilitates the installation of the lower mold inside the cooling seat. The graphite heat-conducting plate and heat dissipation plate transfer heat from the lower mold to the coolant, thereby cooling the lower mold during the pouring process and accelerating the cooling of the pump body. At the same time, the tie rod can adjust the position of the protective cover up and down, which facilitates the inspection of the coolant in the cooling seat and also prevents excessive evaporation of the coolant.

[0004] Although the self-cooling mold for pump body casting has the advantage of convenient mold cooling, the device still has the following problems in practical use: The device transfers heat from the lower mold through a graphite heat-conducting plate and a heat dissipation plate, thereby transferring the heat to the coolant through the heat dissipation plate, thus cooling the lower mold during the pouring process. However, this heat transfer-based cooling method has significant drawbacks. The heat transfer process is constrained by various factors such as material thermal conductivity, contact area, and temperature difference, making it difficult to significantly improve cooling efficiency. Simultaneously, due to the accumulation of thermal resistance during heat transfer between multi-layered structures, some heat cannot be effectively transferred to the coolant, resulting in poor cooling performance and failing to meet the stringent requirements for cooling efficiency and quality in high-speed, high-precision pouring processes. Therefore, we propose a self-cooling component for precision molds. Utility Model Content

[0005] This invention aims to at least partially solve one of the technical problems in related technologies. Therefore, one objective of this invention is to provide a self-cooling component for precision molds, which directly cools the precision mold, thus meeting the stringent requirements for cooling efficiency and quality in high-speed, high-precision casting processes.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A self-cooling assembly for a precision mold includes a mold, with guide pillars fixed at the four corners of the top of the mold; a mold cavity is opened at the top of the mold, and a drain cavity and a water inlet cavity are opened at the front and rear sides of the interior of the mold, with a drain hole and a water inlet hole respectively opened at the bottom of the drain cavity and the water inlet cavity; and multiple cooling channels are opened between the drain cavity and the water inlet cavity for supplying cooling water to cool the mold.

[0008] The bottom of the mold is equipped with a water tank for supporting the mold. The top of the water tank has a drain chamber and a water inlet chamber on the front and back sides respectively. A hollow drain shell is installed at the opening of the drain chamber. The drain shell has multiple first connection ports that are plugged into the drain holes. Multiple drain ports are installed at the bottom of the drain shell.

[0009] A water supply assembly is installed in the water inlet chamber. The water supply assembly includes a water pump fixed at the bottom of the water inlet chamber. A first bend is installed at the outlet of the water pump. A second bend is provided above the first bend. A filter assembly for filtering the cooling water source is installed between the second bend and the first bend to prevent impurities from entering the cooling channel. A hollow water inlet shell is fixed at the top of the second bend. Multiple second connection ports communicating with the water inlet holes are fixed at the top of the water inlet shell.

[0010] In addition, the self-cooling component of the precision mold proposed in the above application may also have the following additional technical features:

[0011] Specifically, brackets are fixedly connected to the left and right side walls of the drainage chamber and the water inlet chamber near the top by bolts. The brackets have a U-shaped cross-section. Both ends of the drainage shell and the water inlet shell are inserted into the openings of the corresponding brackets. Connecting bolts are installed at both ends of the drainage shell and the water inlet shell, and the ends of the connecting bolts are threaded to the brackets.

[0012] Specifically, the water tank has an inlet pipe and a drain pipe installed on the upper and lower sides of its front and rear walls, respectively, and the inlet pipe and drain pipe are connected to the inlet chamber and the drain chamber, respectively.

[0013] Specifically, guide rods are fixed at both the front and rear ends of the top of the water tank, and connecting blocks are fixed on the front and rear walls of the mold. Two fixing holes are opened on the connecting blocks, and the guide rods are inserted into the corresponding fixing holes.

[0014] Specifically, the multiple cooling channels are arranged side by side in the horizontal direction, and the cross-sectional shape of the cooling channels is wavy.

[0015] Specifically, the bottom of the mold is pressed against the top of the water tank, and the top area of ​​the water tank is larger than the bottom area of ​​the mold.

[0016] Specifically, the filter assembly includes a box with an open top, and both the second bend and the first bend are connected to the box; a cover plate is provided on the top of the box, and fixing bolts are provided at the four corners of the cover plate, which are threaded to the box; multiple fixing brackets are fixed at the bottom of the cover plate, the fixing brackets are inserted into the box, and a filter screen for filtering cooling water is fixed at the opening of the fixing bracket.

[0017] Specifically, the dimensions of the fixing frame are adapted to the internal cavity dimensions of the box, and the cross-sectional shape of the fixing frame is U-shaped.

[0018] Specifically, positioning strips are fixed on both outer walls of the fixing frame, and multiple positioning grooves are opened on both inner walls of the box opening, with the positioning strips and positioning grooves interlocking.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] By using a water tank located below the mold: when the mold is placed on top of the water tank, the second connection port is inserted into the water inlet hole, and the first connection port is inserted into the drain hole. At this time, the water pump delivers the cooling water source in the water inlet chamber to multiple cooling channels. When the cooling water source flows in the cooling channels, it can carry away the heat of the mold itself, thereby achieving the effect of cooling the mold. This design has a better cooling effect than the heat transfer cooling method, and can directly cool the precision mold, meeting the stringent requirements for cooling efficiency and quality in high-speed, high-precision casting processes. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present invention;

[0022] Figure 2 This is a schematic diagram of the mold structure in Embodiment 1 of this utility model;

[0023] Figure 3 This is a cross-sectional view of the mold in Embodiment 1 of this utility model;

[0024] Figure 4 This is a cross-sectional view of the water tank in Embodiment 1 of this utility model;

[0025] Figure 5 This is a schematic diagram of the water supply component in Embodiment 1 of this utility model;

[0026] Figure 6 This is an exploded view of the filter assembly in Embodiment 2 of this utility model;

[0027] Figure 7 This is a schematic diagram showing the installation position of the nut in Embodiment 3 of this utility model;

[0028] In the picture:

[0029] 1. Mold; 10. Mold cavity; 11. Guide pillar; 12. Connecting block; 120. Fixing hole; 13. Water inlet cavity; 130. Water inlet hole; 14. Drainage cavity; 140. Drainage hole; 15. Cooling channel;

[0030] 2. Water tank; 20. Guide rod; 200. Nut; 21. Water inlet chamber; 22. Drainage chamber; 24. Drainage pipe; 25. Bracket; 27. Drainage housing; 270. First connection port; 271. Drainage outlet;

[0031] 3. Water supply components; 30. Water pump; 31. First bend; 32. Filter assembly; 320. Box body; 321. Cover plate; 322. Fixing bolts; 323. Fixing bracket; 324. Filter screen; 33. Second bend; 34. Water inlet housing; 340. Second connection port. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1

[0033] Please see Figures 1-5As shown, a self-cooling assembly for a precision mold includes a mold 1, with guide pillars 11 fixed at each of the four corners of the top of the mold 1; a mold cavity 10 is formed on the top of the mold 1, and drainage chambers 14 and water inlet chambers 13 are formed on the front and rear sides of the interior of the mold 1, with drainage holes 140 and water inlet holes 130 respectively at the bottom of the drainage chambers 14 and water inlet chambers 13; multiple cooling channels 15 are formed between the drainage chambers 14 and water inlet chambers 13 for supplying cooling water to cool the mold 1; a water tank 2 is provided below the mold 1 to support the mold 1, with drainage chambers 22 and water inlet chambers 21 formed on the front and rear sides of the top of the water tank 2; a hollow drainage shell 27 is installed at the opening of the drainage chamber 22, and multiple first drain holes 140 are installed on the drainage shell 27 to engage with the drainage holes 140. A first connection port 270 and multiple drain ports 271 are installed at the bottom of the drain housing 27. The first connection port 270 and the drain ports 271 are fused and fixed to the drain housing 27. A water supply assembly 3 is installed in the water inlet chamber 21. The water supply assembly 3 includes a water pump 30 fixed at the bottom of the water inlet chamber 21. A first bend pipe 31 is installed at the outlet of the water pump 30. A second bend pipe 33 is provided above the first bend pipe 31. A filter assembly 32 for filtering the cooling water source to prevent impurities from entering the cooling channel 15 is installed between the second bend pipe 33 and the first bend pipe 31. A hollow water inlet housing 34 is fixed at the top of the second bend pipe 33. Multiple second connection ports 340 connected to the water inlet hole 130 are fixed at the top of the water inlet housing 34. The second connection ports 340 are fused and fixed to the water inlet housing 34.

[0034] In this embodiment, brackets 25 are bolted to the upper sides of both the left and right side walls of the drainage chamber 14 and the water inlet chamber 13. The brackets 25 have a U-shaped cross-section. Both ends of the drainage housing 27 and the water inlet housing 34 are inserted into the openings of the corresponding brackets 25. Connecting bolts are threaded through both ends of the drainage housing 27 and the water inlet housing 34, and the ends of the connecting bolts are threaded to the brackets 25. The U-shaped brackets 25 are designed to fit the connecting bolts, allowing for quick positioning during installation and ensuring a tight connection between components. The connecting bolts also facilitate the disassembly and assembly of the water inlet housing 34 and the drainage housing 27, meeting subsequent maintenance needs.

[0035] In this embodiment, water inlet pipes and drain pipes 24 are installed on the front and rear walls of the water tank 2 at the upper and lower sides, respectively. The water inlet pipes and drain pipes 24 are connected to the water inlet chamber 13 and the drain chamber 14, respectively. The water inlet pipes can replenish the cooling water required by the cooling system in a timely manner, while the drain pipes can discharge the coolant after absorbing heat.

[0036] In this embodiment, guide rods 20 are fixed to the top of the water tank 2 at both the front and rear ends, and connecting blocks 12 are fixed to the front and rear walls of the mold 1. Two fixing holes 120 are formed on the connecting blocks 12, and the guide rods 20 are inserted into the corresponding fixing holes 120. During mold 1 installation, the guide rods 20 provide precise positioning, making the installation process more efficient. Furthermore, when the mold 1 is in operation, this connection method enhances the stability of the mold, reduces shaking and displacement, and ensures production accuracy.

[0037] In this embodiment, multiple cooling channels 15 are arranged side by side in the horizontal direction, and the cross-sectional shape of the cooling channels 15 is wavy. This shape increases the contact area between the cooling channels 15 and the mold 1, and extends the flow path of the cooling water source. When the coolant flows in the wavy channels, it can more fully absorb the heat of the mold 1, thereby significantly improving the cooling efficiency and ensuring uniform cooling of all parts of the mold 1.

[0038] In this embodiment, the bottom of the mold 1 abuts against the top of the water tank 2, and the top area of ​​the water tank 2 is larger than the bottom area of ​​the mold 1. The larger top area of ​​the water tank 2 provides stable support for the mold, making the mold 1 more stable during operation.

[0039] Understandably, the top of the second connection port 340 is flush with the bottom of the inlet chamber 13, and the top of the first connection port 270 is flush with the bottom of the drain chamber 14. This design ensures smooth flow of coolant. It allows unobstructed water inflow, quickly filling the inlet chamber 13; during drainage, it also completely drains the coolant from the chamber, preventing residue, improving cooling efficiency and effectiveness, and ensuring stable operation of the cooling system.

[0040] In practical use, the user first turns on the power supply of the water pump 30, and the water pump 30 starts to work. At this time, the cooling water source in the water inlet chamber 21 enters the first bend pipe 31 through the water pump 30. The water source then enters the second bend pipe 33 after being filtered by the filter assembly 32, and then enters the water inlet housing 34 through the second bend pipe 33. Next, the cooling water source enters the water inlet chamber 13 through multiple second connection ports 340 and enters multiple wave-shaped cooling channels 15. As the cooling water source flows, the cooling water source can carry away the heat of the mold 1 itself, thereby achieving the effect of cooling and reducing the temperature of the mold 1. Finally, the water source enters the drain housing 27 through the drain chamber 14 and the first connection port 270, and the water source is discharged into the drain chamber 22 through the drain outlet 271. Example 2

[0041] Please see Figure 6As shown, the embodiment provides the following technical solution based on embodiment 1: The filter assembly 32 includes a box 320 with an open top, and the second bend 33 and the first bend 31 are both connected to the box 320; a cover plate 321 is provided on the top of the box 320, and fixing bolts 322 are provided at the four corners of the cover plate 321, which are threadedly connected to the box 320; multiple fixing brackets 323 are fixed at the bottom of the cover plate 321, and the fixing brackets 323 are inserted into the box 320. A filter screen 324 for filtering cooling water is fixed at the opening of the fixing bracket 323. When the cooling water flows through, the filter screen 324 can effectively intercept impurities. This detachable structural design facilitates the periodic cleaning and replacement of the filter screen 324, avoids clogging of the cooling channel 15, and ensures the stable operation of the cooling system.

[0042] In this embodiment, the dimensions of the fixing bracket 323 are adapted to the internal cavity dimensions of the housing 320, and the cross-sectional shape of the fixing bracket 323 is U-shaped. This fitted structure ensures that the fixing bracket 323 is securely installed within the housing 320, preventing it from shaking under the impact of water flow. This not only improves the filtration effect but also facilitates the disassembly and cleaning of the filter screen 324, ensuring that the filter assembly 32 always maintains a good working condition.

[0043] In this embodiment, positioning strips are fixed to both outer walls of the mounting bracket 323, and multiple positioning slots are provided on both inner walls of the opening of the housing 320, with the positioning strips interlocking with the positioning slots. When installing the mounting bracket 323, the positioning strips and positioning slots provide precise positioning, ensuring the mounting bracket 323 is accurately installed within the housing 320. This tight fit further enhances the stability of the mounting bracket 323 within the housing 320, ensuring reliable operation of the filter assembly 32 and improving filtration efficiency.

[0044] Understandably, a sealing ring is provided between the cover plate 321 and the box body 320. When the fixing bolt 322 is tightened, the sealing ring is compressed and deformed, filling the gap between the cover plate 321 and the box body 320 to prevent cooling water leakage. In addition, the connection between the second bend 33 and the box body 320 adopts a hot-melt welding process to enhance the sealing of the connection and ensure the stable operation of the cooling system.

[0045] In actual use, the water source enters the box 320 through the second bend pipe 33. At the same time, the water source passes through multiple filter screens 324, and the impurities in the water source are filtered by the filter screens 324. The filtered water source then enters the second bend pipe 33. Example 3

[0046] Please see Figure 7 As shown, the difference between this embodiment and embodiment 1 is that the outer wall of the guide rod 20 is provided with a threaded groove, and a nut 200 is threadedly connected to the threaded groove, and the nut 200 abuts against the top of the connecting block 12.

[0047] With the above settings, this design can firmly lock the mold 1, preventing it from shifting up and down or shaking due to vibration or other factors during operation, enhancing the stability of the connection between the mold 1 and the water tank 2, and ensuring the stable and efficient operation of the cooling system.

[0048] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A self-cooling component for a precision mold, characterized in that: The mold (1) is provided with guide pillars (11) fixed at the four corners of the top of the mold (1); the top of the mold (1) is provided with a mold cavity (10); the interior of the mold (1) is provided with a drain cavity (14) and a water inlet cavity (13) on the front and rear sides; the bottom of the drain cavity (14) and the water inlet cavity (13) are respectively provided with a drain hole (140) and a water inlet hole (130); a plurality of cooling channels (15) are provided between the drain cavity (14) and the water inlet cavity (13) for supplying cooling water to cool the mold (1); A water tank (2) for supporting the mold (1) is provided below the mold (1). The top of the water tank (2) is provided with a drain chamber (22) and a water inlet chamber (21) on the front and rear sides respectively. A hollow drain shell (27) is installed at the opening of the drain chamber (22). The drain shell (27) is provided with multiple first connection ports (270) that are plugged into the drain hole (140). Multiple drain outlets (271) are installed at the bottom of the drain shell (27). A water supply assembly (3) is installed in the water inlet chamber (21). The water supply assembly (3) includes a water pump (30) fixed at the bottom of the water inlet chamber (21). A first bend (31) is installed at the outlet of the water pump (30). A second bend (33) is provided above the first bend (31). A filter assembly (32) for filtering the cooling water source is installed between the second bend (33) and the first bend (31) to prevent impurities from entering the cooling channel (15). A hollow water inlet shell (34) is fixed at the top of the second bend (33). A number of second connection ports (340) connected to the water inlet hole (130) are fixed at the top of the water inlet shell (34).

2. The self-cooling assembly for a precision mold according to claim 1, characterized in that: The left and right side walls of the drainage chamber (14) and the water inlet chamber (13) are fixedly connected to brackets (25) by bolts near the top. The cross-sectional shape of the brackets (25) is U-shaped. The two ends of the drainage shell (27) and the water inlet shell (34) are inserted into the openings of the corresponding brackets (25). The two ends of the drainage shell (27) and the water inlet shell (34) are provided with connecting bolts, and the ends of the connecting bolts are threaded to the brackets (25).

3. The self-cooling assembly for precision molds according to claim 1, characterized in that: The water tank (2) has an inlet pipe and a drain pipe (24) installed on the front and rear walls at the top and bottom sides respectively. The inlet pipe and the drain pipe (24) are connected to the inlet chamber (13) and the drain chamber (14) respectively.

4. The self-cooling assembly for a precision mold according to claim 1, characterized in that: The top of the water tank (2) is fixed with guide rods (20) at both the front and rear ends. The front and rear walls of the mold (1) are fixed with connecting blocks (12). Two fixing holes (120) are opened on the connecting blocks (12). The guide rods (20) are inserted into the corresponding fixing holes (120).

5. The self-cooling assembly for a precision mold according to claim 1, characterized in that: The multiple cooling channels (15) are arranged side by side in the horizontal direction, and the cross-sectional shape of the cooling channels (15) is wavy.

6. The self-cooling assembly for a precision mold according to claim 1, characterized in that: The bottom of the mold (1) is pressed against the top of the water tank (2), and the top area of ​​the water tank (2) is greater than the bottom area of ​​the mold (1).

7. The self-cooling assembly for a precision mold according to claim 1, characterized in that: The filter assembly (32) includes a box (320) with an open top, and the second bend (33) and the first bend (31) are connected to the box (320); a cover plate (321) is provided on the top of the box (320), and fixing bolts (322) are provided at the four corners of the cover plate (321), and the fixing bolts (322) are threaded to the box (320); multiple fixing brackets (323) are fixed at the bottom of the cover plate (321), the fixing brackets (323) are inserted into the box (320), and a filter screen (324) for filtering cooling water is fixed at the opening of the fixing bracket (323).

8. The self-cooling assembly for a precision mold according to claim 7, characterized in that: The dimensions of the fixing frame (323) are adapted to the internal cavity dimensions of the box body (320), and the cross-sectional shape of the fixing frame (323) is square.

9. The self-cooling assembly for a precision mold according to claim 7, characterized in that: The outer walls of both sides of the fixed frame (323) are fixed with positioning strips, and the inner walls of the box body (320) are provided with multiple positioning grooves, and the positioning strips are inserted into the positioning grooves.

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