Injection mold with cooling structure

Abstract

This utility model belongs to the field of mold technology and discloses an injection mold with a cooling structure, including a lower mold. A water storage tank is provided on one side of the lower mold, and a drain pipe and a water inlet pipe are provided on the water storage tank. A cooling cavity is opened inside the lower mold, and an air inlet mechanism is provided on the side of the lower mold near the water storage tank. This utility model can cool the bottom of the injection groove of the lower mold, accelerate the cooling rate of the workpiece, and the serpentine copper tube inside the lower mold is easy to disassemble and assemble. The serpentine copper tube can be directly slid into the cooling cavity, so that both ends of the serpentine copper tube pass through to the outside of the lower mold, and the drain pipe and water inlet pipe are respectively rotated to connect to the two ends of the serpentine copper tube. At this time, the sealing plate will seal the opening of the cooling cavity to prevent excessive loss of cold air in the cooling cavity. The cooling water in the water storage tank is transported to the serpentine copper tube for circulation, and the cooling water circulating in the serpentine copper tube will be discharged into the drain pipe.

Description

Technical Field

[0001] This utility model belongs to the field of mold technology, specifically an injection mold with a cooling structure. Background Technology

[0002] A mold is a tool used in industrial production to obtain desired products through methods such as injection molding, blow molding, extrusion, die casting, forging, smelting, and stamping. In short, a mold is a tool used to create shaped objects; this tool is composed of various parts, and different molds are composed of different parts. It mainly achieves the shaping of the object by changing the physical state of the material being molded. Often called the "mother of industry," injection molds require cooling and demolding after injection molding.

[0003] A search revealed that patent CN223071891U discloses an injection mold with a cooling structure, aiming to solve the technical problem of inconvenient disassembly of fixed copper tubes. The mold includes a lower mold body and an upper mold body, as well as a cooling structure. The cooling structure is arranged on the lower mold body and includes a fixing frame, retaining rings, and a copper tube. The fixing frame is sleeved on the lower mold body. Several retaining rings are sequentially fixed to the top side of the fixing frame. The copper tube is engaged with the retaining rings. This invention has the advantage of enabling quick removal of the copper tube sleeved on the lower mold body, facilitating copper tube processing.

[0004] While existing technologies offer the advantage of quick removal of copper tubing, their placement around the perimeter of the mold results in minimal cooling of the injection groove in the center. Water cooling alone is also insufficient for effectively lowering the mold's temperature, thus reducing the overall cooling rate. Therefore, we provide an injection mold with a cooling structure to address these issues. Utility Model Content

[0005] To address the problems mentioned in the background section, this invention provides an injection mold with a cooling structure.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an injection mold with a cooling structure, including a lower mold, a water tank on one side of the lower mold, a drain pipe and a water inlet pipe on the water tank, a cooling cavity inside the lower mold, an air inlet mechanism on the side of the lower mold near the water tank, a serpentine copper tube inside the cooling cavity, both ends of the serpentine copper tube sliding through to the outside of the lower mold, the top ends of the drain pipe and the water inlet pipe being threadedly connected to the two ends of the serpentine copper tube via rotary joints, a plurality of connecting frames connected to the surface of the serpentine copper tube, a waterproof and breathable membrane fixedly connected to the top of each connecting frame, and a sealing plate for sealing the cooling cavity on the side of the serpentine copper tube away from the water tank.

[0007] Preferably, the air intake mechanism includes a mounting groove, which is opened on the side of the lower mold and communicates with the cooling cavity. The inner wall of the mounting groove is detachably connected to a mounting mesh plate, and an electric fan is mounted on the mounting mesh plate.

[0008] Preferably, the sealing plate is inserted into the opening of the cooling chamber, and two fixing blocks are fixedly connected to the surface of the cooling chamber, both of which are fixedly connected to the sealing plate.

[0009] Preferably, the water storage tank is equipped with a submersible pump, and the submersible pump is connected to the bottom end of the water inlet pipe.

[0010] Preferably, the inner wall of the water storage tank is fixedly connected to a grid, and the top of the grid is open.

[0011] Preferably, a cover plate is provided above the water storage tank, and the cover plate is located on the grid.

[0012] Preferably, a water thermometer is provided on one side of the water storage tank, and the water thermometer is used to measure the water temperature in the water storage tank. The surface of the water storage tank is provided with a capacity scale.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This invention, through the coordinated arrangement of a lower mold, water tank, inlet pipe, drain pipe, serpentine copper tube, cooling chamber, connecting frame, waterproof and breathable membrane, sealing plate, and air inlet mechanism, can cool the bottom of the injection groove of the lower mold, accelerating the cooling rate of the workpiece. The serpentine copper tube within the lower mold is easy to install and remove; it can be slid directly into the cooling chamber, with both ends extending to the outside of the lower mold. The drain pipe and inlet pipe are then rotatably connected to the ends of the serpentine copper tube. The sealing plate then provides cooling... The opening of the cavity is sealed to prevent excessive loss of cold air from the cooling cavity. Then, the cooling water in the water tank is transported to the serpentine copper tube through the water inlet pipe for circulation. The cooling water that has circulated in the serpentine copper tube will be discharged into the drain pipe and finally flow back to the water tank for circulation. In this process, it works in conjunction with the air inlet mechanism so that the cold air flowing in the cooling cavity and the cold air emitted by the cooling water in the serpentine copper tube can cool the injection tank of the lower mold, thereby accelerating the cooling rate of the workpiece, facilitating subsequent maintenance and replacement, and improving the overall practicality of the device. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a side view of the structure of this utility model;

[0017] Figure 3 This is a top sectional view of the present invention;

[0018] Figure 4 This is a schematic diagram of the serpentine copper tube of this utility model;

[0019] Figure 5 This is a schematic diagram of the internal structure of the water storage tank of this utility model.

[0020] In the diagram: 1. Lower mold; 2. Water tank; 3. Water thermometer; 4. Sealing plate; 5. Water inlet pipe; 6. Cover plate; 7. Drain pipe; 8. Mounting mesh plate; 9. Electric fan; 10. Serpentine copper pipe; 11. Waterproof and breathable membrane; 12. Connecting frame; 13. Cooling chamber; 14. Grille; 15. Submersible pump; 16. Fixing block; 17. Mounting groove. Detailed Implementation

[0021] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figure 1-5 As shown, this embodiment proposes an injection mold with a cooling structure, including a lower mold 1. A water tank 2 is provided on one side of the lower mold 1, located on the left side of the lower mold 1. The water tank 2 is filled with cooling water, and a drain pipe 7 and a water inlet pipe 5 are provided on the water tank 2, both extending into the water tank 2. A cooling chamber 13 is provided inside the lower mold 1, located below the injection groove of the lower mold 1. After the workpiece is injected into the injection groove, the cooling temperature in the cooling chamber 13 can be used to cool the workpiece. The opening of the cooling chamber 13 is located on the right side of the lower mold 1. An air inlet mechanism is provided on the side of the lower mold 1 near the water tank 2. On the left side of 1, a serpentine copper tube 10 is installed inside the cooling chamber 13. The serpentine copper tube 10 is designed for easy disassembly within the cooling chamber 13. Both ends of the serpentine copper tube 10 slide through to the outside of the lower mold 1, allowing for easy removal of both ends within the cooling chamber 13. The top ends of the drain pipe 7 and the inlet pipe 5 are threadedly connected to both ends of the serpentine copper tube 10 via rotary joints. Several connecting frames 12 are connected to the surface of the serpentine copper tube 10. A waterproof and breathable membrane 11 is fixed to the top of each connecting frame 12. The waterproof and breathable membrane 11 is an existing, mature component and will not be described in detail here. It prevents water leakage from the serpentine copper tube 10 and ensures the discharge of cold air from within the serpentine copper tube 10. A sealing plate 4 for sealing the cooling chamber 13 is provided on the side of the tube 10 away from the water tank 2. This structure allows the serpentine copper tube 10 to be easily disassembled and assembled within the lower mold 1. When the serpentine copper tube 10 is connected to the water tank 2, it is simply slid directly into the cooling chamber 13, allowing both ends of the serpentine copper tube 10 to extend to the outside of the lower mold 1. Then, the drain pipe 7 and the inlet pipe 5 are rotatably connected to the two ends of the serpentine copper tube 10. At this time, the sealing plate 4 seals the opening of the cooling chamber 13, preventing excessive loss of cold air from the cooling chamber 13. Then, the inlet pipe 5 is used to transport the cooling water from the water tank 2 into the serpentine copper tube 10 for circulation, allowing the serpentine copper tube to circulate. The cooling water flowing through the serpentine copper tube 10 is discharged into the drain pipe 7 and eventually flows back into the water storage tank 2 for circulation. In this process, it works in conjunction with the air intake mechanism to accelerate the cooling efficiency in the cooling chamber 13. Therefore, after the workpiece on the lower mold 1 is injection molded, the cold air in the cooling chamber 13 can be used to cool the injection tank of the lower mold 1, thereby accelerating the cooling rate of the workpiece. In addition, the serpentine copper tube 10 is easy to separate from the lower mold 1, which facilitates subsequent maintenance and replacement and improves the overall practicality of the device. The machinery, parts and equipment in this device all adopt conventional models in the existing technology, and the circuit connection adopts conventional connection methods in the existing technology, which will not be described in detail here.

[0023] like Figure 1As shown, the air intake mechanism includes a mounting groove 17, which is located on the side of the lower mold 1 and communicates with the cooling cavity 13. A mounting mesh plate 8 is detachably connected to the inner wall of the mounting groove 17, and an electric fan 9 is mounted on the mounting mesh plate 8. With the above structure, the operation of the electric fan 9 can blow filtered external air into the cooling cavity 13. Since the waterproof and breathable membrane 11 has a breathable function, the cooling water flowing in the serpentine copper pipe 10 will exhaust some of the cold air into the cooling cavity 13. The operation of the electric fan 9 greatly improves the cooling effect in the cooling cavity 13, thereby ensuring the cooling of the workpiece in the injection tank of the lower mold 1. Moreover, this mechanism can be easily disassembled from the lower mold 1 for replacement or maintenance. Specifically, the screws at the four corners of the mounting mesh plate 8 can be removed from the inner wall of the mounting groove 17. When the mounting mesh plate 8 is removed from the mounting groove 17, the serpentine copper pipe 10 can be removed from the cooling cavity 13, making it convenient for personnel to clean the cooling cavity 13.

[0024] like Figure 1 , Figure 3 and Figure 4 As shown, the sealing plate 4 is inserted into the opening of the cooling chamber 13. Two fixing blocks 16 are fixedly connected to the surface of the cooling chamber 13. Both fixing blocks 16 are fixedly connected to the sealing plate 4. With the above structure, the sealing plate 4 can be connected to the serpentine copper tube 10. When the serpentine copper tube 10 is located in the cooling chamber 13 and connected to the water inlet pipe 5 and the drain pipe 7, the sealing plate 4 will close the opening of the cooling chamber 13, thereby preventing the cold air in the cooling chamber 13 from being discharged at will. This is beneficial for using the cooling in the cooling chamber 13 to cool the workpiece in the injection tank of the lower mold 1.

[0025] like Figure 5 As shown, a submersible pump 15 is installed in the water storage tank 2, and the submersible pump 15 is connected to the bottom end of the water inlet pipe 5. With the submersible pump 15 installed, the cooling water in the water storage tank 2 is transported to the serpentine copper pipe 10 through the water inlet pipe 5, and flows from the other end of the serpentine copper pipe 10 to the drain pipe 7, thereby realizing the circulation of cooling water.

[0026] like Figure 5 As shown, a grid 14 is fixed to the inner wall of the water storage tank 2, and the top of the grid 14 is open. With the grid 14 set up, personnel can put the frozen ice crystal box into the grid 14, which can absorb the surrounding heat to melt and release cold air to cool the cooling water in the water storage tank 2. It can also be recycled. The ice crystal box is an existing mature component. Its composition and form are usually made of polymer, gel or ice crystal powder mixed with water. It is liquid or solid like jelly and is placed in a sealed container. It will not be described in detail here.

[0027] like Figure 1 , Figure 2 and Figure 5 As shown, a cover plate 6 is provided above the water storage tank 2, and the cover plate 6 is located on the grid 14. The cover plate 6 can prevent external dust from entering the water storage tank 2.

[0028] like Figure 1 , Figure 2 and Figure 5 As shown, a water thermometer 3 is installed on one side of the water storage tank 2, and the water thermometer 3 is used to measure the water temperature in the water storage tank 2. The surface of the water storage tank 2 is provided with a capacity scale. With the setting of the water thermometer 3, it is convenient for personnel to observe the water temperature in the water storage tank 2, so as to facilitate the replacement of the ice crystal box in the grille 14. The capacity scale allows personnel to easily observe the water volume in the water storage tank 2, so as to add water.

[0029] The working principle and usage process of this utility model are as follows: After the workpiece completes injection molding in the injection groove of the lower mold 1, the cooling water in the water storage tank 2 is transported to the inlet pipe 5 and the serpentine copper pipe 10 by the operation of the submersible pump 15. The water then flows through the other end of the serpentine copper pipe 10 to the drain pipe 7, and finally flows back to the water storage tank 2 for circulation. During the circulation of the cooling water in the serpentine copper pipe 10, the cold air inside it will be released through the waterproof and breathable membrane 11, thereby cooling the cooling chamber 13. Furthermore, personnel place the frozen ice crystal box in the grid 14 to cool the cooling water in the water storage tank 2, ensuring the cooling effect in the serpentine copper pipe 10. At the same time, the operation of the electric fan 9 will blow air into the cooling chamber 13, thereby accelerating the cooling of the cooling chamber 13. The flow effect within 3, combined with the dual cooling of the electric fan 9 and the serpentine copper tube 10, improves the cooling rate of the bottom of the injection tank. When the serpentine copper tube 10 needs to be disassembled for maintenance, simply remove the drain pipe 7 and the inlet pipe 5 from both ends of the serpentine copper tube 10, and then slide the serpentine copper tube 10 to the right to pull it out. The operation is more convenient. When re-fixing the serpentine copper tube 10 in the lower mold 1, simply slide the serpentine copper tube 10 into the cooling cavity 13 and pass both ends of the serpentine copper tube 10 through the outside of the lower mold 1. The drain pipe 7 and the inlet pipe 5 are respectively connected to the two ends of the serpentine copper tube 10 through the rotary joint, which can quickly complete the fixing of the serpentine copper tube 10. At this time, the sealing plate 4 will also seal the opening of the cooling cavity 13.

[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. Content not described in detail in this specification belongs to the prior art known to those skilled in the art.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An injection mold with a cooling structure, comprising a lower mold (1), characterized in that: A water storage tank (2) is provided on one side of the lower mold (1). A drain pipe (7) and a water inlet pipe (5) are provided on the water storage tank (2). A cooling chamber (13) is provided inside the lower mold (1). An air inlet mechanism is provided on the side of the lower mold (1) near the water storage tank (2). A serpentine copper tube (10) is provided inside the cooling chamber (13). Both ends of the serpentine copper tube (10) slide through to the outside of the lower mold (1). The top ends of the drain pipe (7) and the water inlet pipe (5) are threadedly connected to the two ends of the serpentine copper tube (10) through rotary joints. Several connecting frames (12) are connected to the surface of the serpentine copper tube (10). A waterproof and breathable membrane (11) is fixed to the top of each connecting frame (12). A sealing plate (4) for sealing the cooling chamber (13) is provided on the side of the serpentine copper tube (10) away from the water storage tank (2).

2. The injection mold with a cooling structure according to claim 1, characterized in that: The air intake mechanism includes an installation groove (17), which is located on the side of the lower mold (1) and communicates with the cooling cavity (13). The inner wall of the installation groove (17) is detachably connected to an installation mesh plate (8), and an electric fan (9) is installed on the installation mesh plate (8).

3. The injection mold with a cooling structure according to claim 1, characterized in that: The sealing plate (4) is inserted into the opening of the cooling chamber (13), and two fixing blocks (16) are fixedly connected to the surface of the cooling chamber (13). Both fixing blocks (16) are fixedly connected to the sealing plate (4).

4. The injection mold with a cooling structure according to claim 1, characterized in that: The water storage tank (2) is equipped with a submersible pump (15), and the submersible pump (15) is connected to the bottom end of the water inlet pipe (5).

5. An injection mold with a cooling structure according to claim 1, characterized in that: The inner wall of the water storage tank (2) is fixedly connected with a grid (14), and the top of the grid (14) is open.

6. An injection mold with a cooling structure according to claim 5, characterized in that: The water storage tank (2) is provided with a cover plate (6) on top, and the cover plate (6) is located on the grid (14).

7. An injection mold with a cooling structure according to claim 1, characterized in that: A thermometer (3) is provided on one side of the water storage tank (2), and the thermometer (3) is used to measure the water temperature in the water storage tank (2). The surface of the water storage tank (2) is provided with a capacity scale value.

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