Injection molding machine for rapid forming of household appliance plastic parts

By introducing a cooling fan and water circulation system into the injection molding machine, combined with an electric push rod, rapid mold cooling and efficient production are achieved, solving the problem of low cooling efficiency in traditional injection molding machines and improving production efficiency and product quality.

CN223618182UActive Publication Date: 2025-12-02GUIZHOU HOUWEI OPTOELECTRONICS TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202423071270.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-12
Publication Date
2025-12-02
Estimated Expiration
2034-12-12

AI Technical Summary

Technical Problem

Traditional injection molding machines have inefficient cooling methods, resulting in slow mold cooling, which affects production efficiency and product quality. They may also deform or wear due to excessively high temperatures, affecting mold life.

Method used

It adopts a cooling fan and water circulation system, and uses a multi-stage cooling method with heat dissipation pipes and cooling box. Combined with electric push rods, it realizes rapid closing and opening of mold, improves cooling efficiency and shortens injection cycle.

Benefits of technology

It improves the cooling efficiency and production efficiency of molds, reduces product deformation and cracking, extends mold life, reduces energy consumption and water waste, and improves product quality.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model discloses an injection molding machine for rapid molding of household appliance plastic parts, which belongs to the technical field of injection molding equipment and comprises a workbench, one end of the upper surface of the workbench is fixedly connected with a first mounting plate, and the other end of the upper surface of the workbench is fixedly connected with a second mounting plate. A plurality of heat dissipation fans are fixedly connected to the side, facing the injection molding machine body, of the second mounting plate, a forming mold is fixedly connected to the upper surface of the workbench, a plurality of heat dissipation pipes are arranged at the upper end and the lower end of the interior of the forming mold, and supporting frames are fixedly connected to the two ends of the lower surface of the workbench; and a circulating mechanism is fixedly connected to the interior of one supporting frame. According to the utility model, through the arrangement of the radiating pipe, the device not only improves the cooling efficiency, but also ensures the rapid cooling of the mold and improves the product quality, and through the arrangement of the circulating mechanism, the device not only obviously reduces the waste of water resources, but also reduces the energy consumption in the whole injection molding process.
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Description

Technical Field

[0001] This utility model relates to the field of injection molding equipment technology, and in particular to an injection molding machine for rapid prototyping of plastic parts for household appliances. Background Technology

[0002] With the rapid development of the home appliance industry, the demand for plastic parts is increasing, especially for home appliance plastic parts with exquisite appearance and precision structure requirements, such as TV shells, refrigerator plastic shells, and washing machine plastic covers. The production of these plastic parts is inseparable from injection molding machines, and the performance and technical level of injection molding machines directly affect the quality and production efficiency of plastic parts.

[0003] Traditional injection molding machines rely on a single cooling method, such as simply using the mold's own heat dissipation or simple air cooling. This results in low cooling efficiency, slow mold cooling and molding speed, which affects production efficiency and product quality. Furthermore, due to poor cooling, the mold may deform or wear due to excessive temperature during operation, thus affecting the mold's lifespan and product quality. To address these issues, this utility model provides an injection molding machine for rapid prototyping of plastic parts for household appliances. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an injection molding machine for rapid prototyping of plastic parts for household appliances.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An injection molding machine for rapid prototyping of plastic parts for household appliances includes a worktable. A first mounting plate is fixedly connected to one end of the upper surface of the worktable. An electric push rod is fixedly connected inside the first mounting plate. The telescopic end of the electric push rod is fixedly connected to the injection molding machine body. A second mounting plate is fixedly connected to the other end of the upper surface of the worktable. Several cooling fans are fixedly connected to the side of the second mounting plate facing the injection molding machine body. A molding die is fixedly connected to the upper surface of the worktable. Several heat dissipation pipes are provided at the upper and lower ends of the molding die. Support frames are fixedly connected to both ends of the lower surface of the worktable. A circulation mechanism is fixedly connected inside one of the support frames.

[0007] As a further improvement of this utility model, the circulation mechanism includes a water storage tank fixedly connected to one side of the interior of one of the support frames. A water pump is fixedly connected to the front of the water storage tank. The inlet end of the water pump is connected to the water storage tank. A water delivery pipe is fixedly connected to the outlet end of the water pump. A first connecting pipe is fixedly connected to the other end of the water delivery pipe. The first connecting pipe is fixedly connected to one side of several heat dissipation pipes. A cooling box is fixedly connected to the other side of the interior of the support frame.

[0008] As a further improvement of this utility model, the other side of several heat dissipation pipes is fixedly connected to the same second connecting pipe, the other end of the second connecting pipe is fixedly connected to an output pipe, and the other end of the output pipe is fixedly connected to a cooling box.

[0009] As a further improvement of this utility model, a circulation pipe is fixedly connected between the water storage tank and the cooling tank, and an electromagnetic valve is provided on the surface of the circulation pipe.

[0010] As a further improvement of this utility model, a reinforcing rod is fixedly connected to the surface of the output tube, and the lower surface of the reinforcing rod is fixedly connected to the workbench.

[0011] As a further improvement of this utility model, a mold cover is fixedly connected to the output end of the injection molding machine body, and a feeding funnel is fixedly connected to the upper surface of the injection molding machine body.

[0012] The beneficial effects of this utility model are:

[0013] By installing heat dissipation pipes, a water pump circulates cooling water from the storage tank into the heat dissipation pipes during use, directly cooling the molding die. The cooling water flowing within the heat dissipation pipes effectively removes heat from the die, and the auxiliary cooling fan further accelerates heat dissipation. This not only improves cooling efficiency but also ensures rapid cooling of the die. Rapid and uniform cooling helps plastic parts maintain a stable shape and size during molding, reducing quality problems such as deformation and cracking caused by uneven cooling, thus improving product quality.

[0014] By setting up a circulation mechanism, during use, the cooling water absorbs heat from the mold in the heat dissipation pipe and then flows into the output pipe through the second connecting pipe. At this time, the strong airflow of the cooling fan accelerates the heat release of the cooling water in the output pipe, so that the cooling water is partially cooled before entering the cooling box. This achieves multi-stage utilization and efficient heat dissipation. After preliminary heat dissipation, the cooling water enters the cooling box for more thorough cooling treatment, ensuring that the cooling water can return to a suitable temperature and prepare for the next cooling cycle. This device not only significantly reduces water waste but also reduces energy consumption in the entire injection molding process.

[0015] By setting up the molding die, the electric push rod is activated during use to quickly move the main body of the injection molding machine and the mold cover, realizing the rapid closing and opening of the mold, shortening the injection molding cycle, and thus improving production efficiency. This is especially important for the large-scale production of plastic parts for home appliances, as it can significantly reduce production time and effectively increase output.

[0016] In summary, this utility model demonstrates significant beneficial effects in improving production efficiency, optimizing cooling effect, saving energy and reducing consumption, simplifying operation, and extending mold life. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of an injection molding machine for rapid prototyping of plastic parts for household appliances, as proposed in this utility model.

[0018] Figure 2 This is a schematic diagram of the molding die of an injection molding machine for rapid prototyping of plastic parts for household appliances, as proposed in this utility model.

[0019] Figure 3 This is a schematic diagram of the circulation mechanism of an injection molding machine for rapid prototyping of plastic parts for household appliances, as proposed in this utility model.

[0020] Figure 4 This is a side view of an injection molding machine for rapid prototyping of plastic parts for household appliances, as proposed in this utility model.

[0021] In the diagram: 1. Workbench, 2. First mounting plate, 3. Electric push rod, 4. Injection molding machine body, 5. Second mounting plate, 6. Cooling fan, 7. Molding mold, 8. Heat dissipation pipe, 9. Support frame, 10. Water tank, 11. Water pump, 12. Water supply pipe, 13. First connecting pipe, 14. Second connecting pipe, 15. Output pipe, 16. Circulation pipe, 17. Solenoid valve, 18. Reinforcing rod, 19. Mold cover, 20. Feeding funnel, 21. Cooling box. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Reference Figures 1-4 An injection molding machine for rapid prototyping of plastic parts for household appliances includes a worktable 1. A first mounting plate 2 is fixedly connected to one end of the upper surface of the worktable 1. An electric push rod 3 is fixedly connected inside the first mounting plate 2. The telescopic end of the electric push rod 3 is fixedly connected to the injection molding machine body 4. A second mounting plate 5 is fixedly connected to the other end of the upper surface of the worktable 1. Several cooling fans 6 are fixedly connected to the side of the second mounting plate 5 facing the injection molding machine body 4. A molding die 7 is fixedly connected to the upper surface of the worktable 1. Several heat dissipation pipes 8 are provided at the upper and lower ends of the molding die 7. Support frames 9 are fixedly connected to both ends of the lower surface of the worktable 1. A circulation mechanism is fixedly connected inside one of the support frames 9.

[0024] In this utility model, the circulation mechanism includes a water storage tank 10 fixedly connected to one side of the interior of one of the support frames 9. A water pump 11 is fixedly connected to the front of the water storage tank 10. The inlet end of the water pump 11 is connected to the water storage tank 10, and the outlet end of the water pump 11 is fixedly connected to a water delivery pipe 12. The other end of the water delivery pipe 12 is fixedly connected to a first connecting pipe 13, which is fixedly connected to one side of several heat dissipation pipes 8. A cooling box 21 is fixedly connected to the other side of the interior of the support frame 9, and the other side of the several heat dissipation pipes 8 is fixedly connected to the same second connecting pipe 14. The other end of 4 is fixedly connected to an output pipe 15, and the other end of the output pipe 15 is fixedly connected to a cooling box 21. When the water pump 11 is started, the cooling water inside the water storage tank 10 is input into the heat dissipation pipe 8 through the water supply pipe 12 and the first connecting pipe 13. The cooling water moves in the heat dissipation pipe 8 and carries away the heat of the molding mold 7. Then it enters the output pipe 15 through the second connecting pipe 14. At this time, the strong wind of the cooling fan 6 accelerates the heat release of the cooling water in the output pipe 15, so that the cooling water is partially cooled before entering the cooling box 21, realizing multi-stage utilization and efficient heat dissipation.

[0025] A circulation pipe 16 is fixedly connected between the water storage tank 10 and the cooling tank 21. A solenoid valve 17 is provided on the surface of the circulation pipe 16. A reinforcing rod 18 is fixedly connected to the surface of the output pipe 15. The lower surface of the reinforcing rod 18 is fixedly connected to the worktable 1. A mold cover 19 is fixedly connected to the output end of the injection molding machine body 4. The cooling water inside the cooling tank 21 can be circulated back into the water storage tank 10 for reuse through the circulation pipe 16 and the solenoid valve 17. A feeding funnel 20 is fixedly connected to the upper surface of the injection molding machine body 4. Raw materials are input into the injection molding machine body 4 through the feeding funnel 20.

[0026] In use, the raw material is first fed into the injection molding machine body 4 through the feeding funnel 20. The electric push rod 3 is then activated to move the injection molding machine body 4 and the mold cover 19 until the mold cover 19 and the molding die 7 are closed. The injection molding machine body 4 is then started to begin the injection operation. After the liquid raw material is injected into the molding die 7 by the injection molding machine body 4, the water pump 11 is activated to pump the cooling water inside the water storage tank 10 into the heat dissipation pipe 8 through the water supply pipe 12 and the first connecting pipe 13. The cooling water moves within the heat dissipation pipe 8 and carries away the heat from the molding die 7. The water enters the output pipe 15 through the second connecting pipe 14. At the same time, the cooling fan 6 is started to dissipate heat from the molding mold 7 and the cooling water in the output pipe 15. After the cooling water is initially cooled in the output pipe 15, it enters the cooling box 21 for cooling. After cooling is completed, the solenoid valve 17 is opened to allow the cooling water in the cooling box 21 to return to the water storage tank 10 through the circulation pipe 16. Finally, after the mold inside the molding mold 7 is cooled and formed, the electric push rod 3 is started again to push the mold cover 19 to separate from the molding mold 7. The mold inside the molding mold 7 is then removed to complete the processing.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An injection molding machine for rapid prototyping of plastic parts for household appliances, comprising a worktable (1), characterized in that, One end of the upper surface of the workbench (1) is fixedly connected to a first mounting plate (2), and an electric push rod (3) is fixedly connected inside the first mounting plate (2). The telescopic end of the electric push rod (3) is fixedly connected to the injection molding machine body (4). The other end of the upper surface of the workbench (1) is fixedly connected to a second mounting plate (5). Several cooling fans (6) are fixedly connected to the side of the second mounting plate (5) facing the injection molding machine body (4). A molding mold (7) is fixedly connected to the upper surface of the workbench (1). Several heat dissipation pipes (8) are provided at the upper and lower ends of the molding mold (7). Support frames (9) are fixedly connected to both ends of the lower surface of the workbench (1). A circulation mechanism is fixedly connected inside one of the support frames (9).

2. The injection molding machine for rapid prototyping of plastic parts for household appliances according to claim 1, characterized in that, The circulation mechanism includes a water tank (10) fixedly connected to one side of the inside of one of the support frames (9). A water pump (11) is fixedly connected to the front of the water tank (10). The inlet end of the water pump (11) is connected to the water tank (10). A water delivery pipe (12) is fixedly connected to the outlet end of the water pump (11). A first connecting pipe (13) is fixedly connected to the other end of the water delivery pipe (12). The first connecting pipe (13) is fixedly connected to one side of several heat dissipation pipes (8). A cooling box (21) is fixedly connected to the other side inside the support frame (9).

3. The injection molding machine for rapid prototyping of plastic parts for household appliances according to claim 2, characterized in that, The other side of several heat dissipation pipes (8) is fixedly connected to the same second connecting pipe (14), the other end of the second connecting pipe (14) is fixedly connected to an output pipe (15), and the other end of the output pipe (15) is fixedly connected to a cooling box (21).

4. The injection molding machine for rapid prototyping of plastic parts for household appliances according to claim 2, characterized in that, A circulation pipe (16) is fixedly connected between the water storage tank (10) and the cooling tank (21), and a solenoid valve (17) is provided on the surface of the circulation pipe (16).

5. The injection molding machine for rapid prototyping of plastic parts for household appliances according to claim 3, characterized in that, A reinforcing rod (18) is fixedly connected to the surface of the output tube (15), and the lower surface of the reinforcing rod (18) is fixedly connected to the workbench (1).

6. The injection molding machine for rapid prototyping of plastic parts for household appliances according to claim 1, characterized in that, The output end of the injection molding machine body (4) is fixedly connected to a mold cover (19), and the upper surface of the injection molding machine body (4) is fixedly connected to a feeding funnel (20).