Wear-resistant and durable rapid forming injection mold

The modular injection mold with integrated cooling and ejection systems addresses long formation times and contamination issues, ensuring rapid cooling, easy demolding, and a clean production environment.

CN223099878UActive Publication Date: 2025-07-15KEMEI CHUANGYAN AUTOMOTIVE TECH (SHANGHAI) CO LTD
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Patent Information

Application Number
CN202421747009.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-23
Publication Date
2025-07-15
Estimated Expiration
2034-07-23

AI Technical Summary

Technical Problem

The existing injection molds have a long forming time, a complex demolding process and are prone to contamination of the working environment.

Method used

A mold structure including liquid-cooled tube and air-cooled nozzle is designed, combining electric push rods and guide structures to achieve rapid cooling and convenient mold release, and prevent hot melt from adhering through the bottom plate flow guide groove.

Benefits of technology

Improves cooling efficiency, simplifies the mold release process, reduces the production cycle, and maintains the cleanliness of the production environment.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223099878U_ABST
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Abstract

The utility model relates to the technical field of injection molds, and discloses a wear-resistant and durable rapid forming injection mold which comprises an upper mold, a lower mold and a bottom plate, four supporting columns are connected to the middle of the upper surface of the bottom plate, the lower mold is connected to the upper surfaces of the supporting columns, and a discharging structure is connected between the bottom plate and the lower mold. The rear side of the upper surface of the bottom plate is connected with the upper supporting column, the upper supporting column is connected with the upper plate, the middle of the upper plate is fixedly connected with the air cylinder, the output end of the air cylinder penetrates through the upper plate and is connected with the upper die, the guide structure is arranged between the upper die and the lower die, and the upper supporting column and the lower die are connected with the cooling structure. The cooling device has the advantages of high cooling efficiency, convenience in demolding and avoidance of pollution to a working environment.
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Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, and particularly refers to a wear-resistant and durable rapid prototyping injection mold. Background Art

[0002] An injection mold is a tool used for plastic injection molding, also known as an injection mold. It is usually composed of components such as a mold base, a mold core, and a runner system. During the injection molding process, plastic particles are heated to a molten state and then injected into the mold. Once the plastic cools and solidifies, the mold is opened and the finished product can be removed from the mold.

[0003] At present, there are some problems in the molding process of injection molds. First of all, the molding time of injection molds is relatively long and the working efficiency is relatively low, which is mainly due to their complex manufacturing processes and processing steps. Secondly, the demolding process is rather troublesome and requires additional tools or operations to ensure that the finished product can be smoothly removed from the mold, which not only increases the production cycle but also reduces the production efficiency. In addition, during the injection process, the bottom plate is often easily contaminated, affecting the cleanliness of the working environment and the working efficiency of operators. Summary of the Utility Model

[0004] In order to solve the above various problems, the utility model proposes a wear-resistant and durable rapid prototyping injection mold with high cooling efficiency, convenient demolding, and avoiding environmental pollution of the work.

[0005] In order to solve the above technical problems, the technical solution proposed by the utility model is: a wear-resistant and durable rapid prototyping injection mold, including an upper mold, a lower mold, and a bottom plate. Four support columns are connected and arranged in the middle of the upper surface of the bottom plate. The lower mold is connected and arranged on the support columns. An ejection structure is connected between the bottom plate and the lower mold. An upper support column is connected to the rear side of the upper surface of the bottom plate. An upper plate is connected to the upper support column. A cylinder is fixedly connected in the middle of the upper surface of the upper plate. The output end of the cylinder passes through the upper plate and is connected to the upper mold. A guiding structure is arranged between the upper mold and the lower mold. A cooling structure is connected to the upper support column and the lower mold.

[0006] Further, the ejection structure includes an electric push rod connected and arranged in the middle of the upper surface of the bottom plate. A round hole is arranged in the middle of the lower mold. The extending end of the electric push rod is connected to a round plate that is slidably matched with the round hole.

[0007] Further, the guiding structure includes guiding rods connected and arranged at the four corners of the upper surface of the lower mold. Guiding holes adapted to each other are connected and arranged at the four corners of the lower surface of the upper mold.

[0008] Further, the cooling structure includes liquid cooling pipes connected to the front and rear sides of the lower mold. The liquid cooling pipes are communicated with an external liquid cooling device. L-shaped plates are connected to both sides of the upper support column. The extending ends of the L-shaped plates are connected with side plates. An air cooling nozzle is connected to the middle of the side plate. The air cooling nozzle is connected to an external air cooling device.

[0009] Further, the electric push rod is a waterproof electric push rod.

[0010] Further, a diversion groove is provided on the upper surface of the bottom plate.

[0011] The advantages of the present utility model compared with the prior art are as follows:

[0012] High cooling efficiency: The mold design includes liquid cooling pipes and air cooling nozzles. By combining the use of an external liquid cooling device and an air cooling device, the injection-molded articles can be effectively and rapidly cooled. This not only helps to improve production efficiency but also ensures the stability and consistency of the quality of the molded products.

[0013] Easy demolding: The mold structure is reasonably designed, including the use of a guiding structure and an electric push rod, so that the injection-molded articles after molding can be easily and rapidly separated from the mold. This not only saves production time but also helps to reduce the downtime in production and improves production efficiency.

[0014] Avoiding work environmental pollution: Through the design of the diversion groove on the bottom plate and the flushing with water, the adhesion of the hot melt to the mold can be effectively prevented, reducing the generation of waste and pollutants in the production process. This helps to keep the production environment clean and safe. Description of the Drawings

[0015] Figure 1 is a perspective view of the present utility model;

[0016] Figure 2 is a front view of the present utility model;

[0017] Figure 3 is a left view of the present utility model;

[0018] Figure 4 is a top view of the present utility model.

[0019] As shown in the figure: 1. Upper mold; 2. Lower mold; 3. Bottom plate; 4. Support column; 5. Upper support column; 6. Upper plate; 7. Cylinder; 8. Electric push rod; 9. Guide rod; 10. Liquid cooling pipe; 11. L-shaped plate; 12. Side plate; 13. Air cooling nozzle; 14. Diversion groove. Detailed Embodiment

[0020] The present utility model will be further described in detail below with reference to the drawings.

[0021] Combined with the attached Figure 1 There is a wear-resistant and durable rapid prototyping injection mold, which includes an upper mold 1, a lower mold 2 and a bottom plate 3. A diversion groove 14 is provided on the upper surface of the bottom plate 3. Four support columns 4 are connected and arranged in the middle of the upper surface of the bottom plate 3. The lower mold 2 is connected and arranged on the support columns 4. An ejection structure is connected between the bottom plate 3 and the lower mold 2. The ejection structure includes an electric push rod 8 connected and arranged in the middle of the upper surface of the bottom plate 3. A circular hole is provided in the middle of the lower mold 2. The extending end of the electric push rod 8 is connected with a circular plate that is slidably matched with the circular hole. The electric push rod 8 is a waterproof electric push rod.

[0022] Combined with the attached Figure 3 On the rear side of the upper surface of the bottom plate 3, an upper support column 5 is connected and arranged. An upper plate 6 is connected and arranged on the upper support column 5. A cylinder 7 is fixedly connected and arranged in the middle of the upper surface of the upper plate 6. The output end of the cylinder 7 passes through the upper plate 6 and is connected with the upper mold 1. A guiding structure is provided between the upper mold 1 and the lower mold 2. The guiding structure includes guiding rods 9 connected and arranged at the four corners of the upper surface of the lower mold 2. Guiding holes adapted to each other are connected and arranged at the four corners of the lower surface of the upper mold 1.

[0023] Combined with the attached Figure 3 A cooling structure is connected between the upper support column 5 and the lower mold 2. The cooling structure includes liquid cooling pipes 10 connected and arranged on the front and rear sides of the lower mold 2. The liquid cooling pipes 10 are communicated with an external liquid cooling device. L-shaped plates 11 are connected and arranged on both sides of the upper support column 5. The extending ends of the L-shaped plates 11 are connected with side plates 12. An air cooling nozzle 13 is connected and arranged in the middle of the side plates 12. The air cooling nozzle 13 is connected with an external air cooling device.

[0024] Working principle: When the present utility model is in use, running water is introduced into the bottom plate 3 and flows from left to right through the diversion groove 14. During the injection molding process, the hot melt material that falls on the bottom plate 3 quickly condenses and is washed away by the running water, and will not stick to the bottom plate 3. The cylinder 7 is started to extend, so that the upper mold 1 descends, the guiding holes and the guiding rods 9 are inserted into each other, and the upper mold 1 and the lower mold 2 are docked with each other. The hot melt injection material is injected from the injection hole of the lower mold 2. Then, the external liquid cooling device is started, and the liquid cooling material continuously passes through the liquid cooling pipes 10 to cool and form the injection molded article. After forming, the cylinder 7 is started to retract, so that the upper mold 1 rises. The waterproof electric push rod 8 is started to extend, so that the circular plate pushes out the injection molded material. At the same time, the external air cooling device is started, and cold air is sprayed from the air cooling nozzle 13 to quickly cool and shape the injection molded material. Taking out the injection molded material completes the injection molding work. The whole working process has rapid forming, small friction, small friction on the mold, the whole device is wear-resistant and durable, and has a long service life.

[0025] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the term "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. For those of ordinary skill in the art, the specific meaning of the above terms in the present utility model can be understood according to specific circumstances.

[0026] The above describes the present utility model and its implementation manners. Such description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present utility model, and the actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and, without departing from the purpose of the creation of the present utility model, design similar structural manners and embodiments to this technical solution without creative efforts, they shall fall within the protection scope of the present utility model.

Claims

1. A wear-resistant and durable rapid prototyping injection mold, comprising an upper mold (1), a lower mold (2) and a bottom plate (3), characterized in that: Four support columns (4) are connected and arranged at the middle of the upper surface of the bottom plate (3). The lower die (2) is connected and arranged on the support columns (4). A discharge structure is connected between the bottom plate (3) and the lower die (2). An upper support column (5) is connected to the rear side of the upper surface of the bottom plate (3). An upper plate (6) is connected to the upper support column (5). A cylinder (7) is fixedly connected and arranged at the middle of the upper surface of the upper plate (6). The output end of the cylinder (7) passes through the upper plate (6) and is connected with an upper die (1). A guiding structure is arranged between the upper die (1) and the lower die (2). A cooling structure is connected to the upper support column (5) and the lower die (2). The cooling structure includes liquid cooling pipes (10) connected to the front and rear sides of the lower die (2). The liquid cooling pipes (10) are communicated with an external liquid cooling device. L-shaped plates (11) are connected to both sides of the upper support column (5). The extending ends of the L-shaped plates (11) are connected with side plates (12). An air cooling nozzle (13) is connected to the middle of the side plates (12). The air cooling nozzle (13) is connected with an external air cooling device.

2. The wear-resistant and durable rapid prototyping injection mold according to claim 1, characterized in that: The discharge structure includes an electric push rod (8) connected to the middle of the upper surface of the bottom plate (3). A circular hole is provided in the middle of the lower die (2). The extending end of the electric push rod (8) is connected with a circular plate that is slidably matched with the circular hole.

3. A wear-resistant and durable rapid prototyping injection mold according to claim 1, characterized in that: The guiding structure includes guiding rods (9) connected to the four corners of the upper surface of the lower die (2). Guiding holes adapted to each other are connected to the four corners of the lower surface of the upper die (1).

4. The wear-resistant and durable rapid prototyping injection mold according to claim 2, wherein: The electric push rod (8) is a waterproof electric push rod.

5. A wear-resistant and durable rapid prototyping injection mold according to claim 1, characterized in that: A diversion groove (14) is provided on the upper surface of the bottom plate (3).