Graphite press forming dustless injection device
By introducing a dust-free injection hood and dust removal components into the graphite pressing and molding device, the problem of dust pollution was solved, and dust-free operation and high-quality graphite product production were achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN DEJINLAI IND CO LTD
- Filing Date
- 2025-08-15
- Publication Date
- 2026-07-07
AI Technical Summary
Traditional graphite pressing and molding injection equipment generates a large amount of dust during use, which pollutes the environment, endangers health, and affects product quality.
A graphite pressing and molding device including a dust-free filling hood and a dust removal component was designed. Graphite dust is conveyed by a screw feeder and a drive motor, and dust is collected by a dust removal fan and a dust suction pipe to ensure dust-free operation.
This technology enables dust-free operation during the graphite pressing process, protecting the working environment and the health of operators while ensuring the quality of the products.
Smart Images

Figure CN224464940U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of graphite material processing equipment, specifically a graphite pressing and molding dust-free injection device. Background Technology
[0002] Graphite materials are widely used in new energy, metallurgy, semiconductor and other fields due to their high temperature resistance, good electrical conductivity and strong chemical stability. The production of graphite products requires the following processes: "graphite powder mixing → injection → pressing → calcination → graphitization". Among them, the injection process is the core step that determines the key properties of the product such as density uniformity and strength. As an important industrial raw material, graphite needs to go through the pressing process during manufacturing.
[0003] A common headache in the use of traditional graphite compression molding injection equipment is the generation of large amounts of dust. This dust not only severely pollutes the working environment, making the workplace dirty and messy, but also poses potential health hazards to operators. Prolonged exposure to environments with high concentrations of dust can lead to respiratory diseases, skin allergies, and other health problems in severe cases. In addition, the flying dust can also affect the quality of graphite products, as it may adhere to the surface of the products, causing surface defects and even affecting their overall performance and service life.
[0004] Therefore, this utility model provides a dust-free injection device for graphite pressing and molding to solve the above problems. Utility Model Content
[0005] (a) Technical problems to be solved
[0006] This invention provides a dust-free injection device for graphite pressing and molding, which aims to solve the problems mentioned in the background art.
[0007] (II) Technical Solution
[0008] To achieve the above objectives, this utility model provides the following technical solution: It includes a feeding device frame, with a graphite silo fixedly installed at the upper end of the feeding device frame. A conveying pipe is provided at the right end of the graphite silo, and a connecting pipe is fixedly installed at the lower end of the conveying pipe. A dust-free feeding hood is fixedly installed at the lower end of the connecting pipe. A spiral feeding rod is rotatably installed inside the lower end of the graphite silo. A drive motor is fixedly installed on the left side of the graphite silo, and the output shaft of the drive motor is fixedly connected to the spiral feeding rod. The right end of the spiral feeding rod is movably inserted into the conveying pipe. A cover plate is rotatably installed at the upper opening of the graphite silo. A dust removal component is provided inside the feeding device frame.
[0009] As a preferred technical solution of this application, the lower end of the dust-free filling hood is provided with a sealing skirt, which is made of silicone material.
[0010] As a preferred technical solution of this application, a material dispersing disc is fixedly installed at the connection between the upper end of the dust-free material dispensing hood and the connecting pipe, and multiple sets of inclined discharge pipes are arranged in a ring at the lower end of the material dispensing disc.
[0011] As a preferred technical solution of this application, the dust removal component includes a mounting plate, which is fixedly installed inside the lower end of the injection device frame. Two sets of dust removal fans are fixedly installed on the upper side of the mounting plate. A suction pipe is fixedly installed at the right end opening of the two sets of dust removal fans. The suction pipe is connected to the dust-free injection hood. A control valve is provided at the connection between the two sets of dust removal fans and the two sets of suction pipes. A return pipe is provided at the left end opening of the two sets of dust removal fans. The upper end of the return pipe is fixedly connected to the dust removal fan.
[0012] As a preferred technical solution of this application, the vacuum tube is provided with a detection sensor.
[0013] As a preferred technical solution of this application, the dust-free filling hood is made of transparent acrylic sheet, and the connecting tube is composed of foldable flexible tube.
[0014] As a preferred technical solution of this application, the upper opening of the material dispersing disc is the same size as the opening at the connection between the connecting pipe and the dust-free material dispersing hood, and the upper inner center of the material dispersing disc is cone-shaped.
[0015] (III) Beneficial Effects
[0016] By incorporating dust removal components, the graphite dust in the graphite hopper is transported out via a screw feeder and drive motor, and then fed onto the graphite product molding die through a conveying pipe, connecting pipe, and dust-free injection hood. This timely collection and treatment of the generated dust prevents dust from flying around, achieving dust-free operation during the graphite pressing and molding injection process. This effectively avoids the harm of dust to the working environment and operators, while ensuring the quality of the graphite products. Attached Figure Description
[0017] Figure 1 This is a front view schematic diagram of a dust-free injection device for graphite pressing and molding;
[0018] Figure 2 This is a schematic diagram of the right-side structure of a graphite pressing and molding dust-free injection device;
[0019] Figure 3 This is a front view structural cross-sectional schematic diagram of a graphite pressing and molding dust-free injection device;
[0020] Figure 4 This is a schematic cross-sectional view of the cleanroom filling hood in a graphite pressing and molding cleanroom filling device, viewed from the right.
[0021] Figure 5 This is a front view schematic diagram of the dust removal component in a graphite pressing and molding dust-free injection device;
[0022] Figure 6 This is a front view structural cross-sectional diagram of the dispensing and dispersing disc in a graphite pressing and dust-free dispensing device.
[0023] In the diagram: 1. Injection device frame; 2. Graphite silo; 3. Conveying pipe; 4. Connecting pipe; 5. Dust-free injection hood; 6. Screw feeder; 7. Drive motor; 8. Cover plate; 9. Injection dispersion disc; 10. Inclined discharge pipe; 11. Sealing skirt; 12. Mounting plate; 13. Dust removal fan; 14. Suction pipe; 15. Control valve; 16. Detection sensor; 17. Return pipe. Detailed Implementation
[0024] 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.
[0025] This utility model provides a dust-free injection device for graphite pressing and molding, such as... Figure 1-6 As shown, the graphite pressing and molding dust-free injection device includes an injection device frame 1. A graphite silo 2 is fixedly installed at the upper end of the injection device frame 1. A conveying pipe 3 is provided at the right end of the graphite silo 2. A connecting pipe 4 is fixedly installed at the lower end of the conveying pipe 3. A dust-free injection cover 5 is fixedly installed at the lower end of the connecting pipe 4. A spiral feeding rod 6 is rotatably installed inside the lower end of the graphite silo 2. A drive motor 7 is fixedly installed on the left side of the graphite silo 2. The output shaft of the drive motor 7 is fixedly connected to the spiral feeding rod 6. The right end of the spiral feeding rod 6 is movably inserted into the conveying pipe 3. A cover plate 8 is rotatably installed at the upper opening of the graphite silo 2. A dust removal component is provided inside the injection device frame 1.
[0026] When graphite dust is stored in the graphite silo 2, it is guided to the conveying pipe 3 by the conveying action of the screw feeder 6 and the drive motor 7, and finally put into the graphite product molding die through the connecting pipe 4 and the dust-free injection hood 5. During this process, the dust removal component can collect and treat the generated dust in time, preventing the spread of dust.
[0027] The lower end of the dust-free filling hood 5 is provided with a sealing skirt 11, which is made of silicone material.
[0028] The silicone sealing skirt 11 has good sealing and elasticity, which can ensure a tight fit between the dust-free injection hood 5 and the graphite product molding die to form a closed injection space, prevent dust leakage, and further improve the dust removal effect of the device.
[0029] A material dispersing disc 9 is fixedly installed at the connection between the upper end of the dust-free material dispensing hood 5 and the connecting pipe 4. Multiple sets of inclined discharge pipes 10 are arranged in a ring at the lower end of the material dispensing disc 9.
[0030] By using the injection dispersion plate 9 and multiple sets of inclined discharge pipes 10, the graphite powder guided and conveyed by the conveying pipe 3 and connecting pipe 4 can be evenly dispersed into the mold.
[0031] The dust removal assembly includes a mounting plate 12, which is fixedly installed inside the lower end of the injection device frame 1. Two sets of dust removal fans 13 are fixedly installed on the upper side of the mounting plate 12. Dust suction pipes 14 are fixedly installed at the right end openings of the two sets of dust removal fans 13. The dust suction pipes 14 are connected to the dust-free injection hood 5. Control valves 15 are provided at the connection points between the two sets of dust removal fans 13 and the two sets of dust suction pipes 14. Return pipes 17 are provided at the left end openings of the two sets of dust removal fans 13. The upper end of the return pipes 17 is fixedly connected to the dust removal fans 13.
[0032] During the process of graphite dust being guided to the conveying pipe 3 and then fed onto the graphite product molding die through the connecting pipe 4 and the dust-free injection hood 5, the dust splashed inside the dust-free injection hood 5 is sucked out through the dust suction pipe 14 by the suction fan 13 and recycled into the graphite silo 2 through the return pipe 17, ensuring full utilization of the graphite dust raw material.
[0033] A detection sensor 16 is installed on the suction pipe 14.
[0034] The sensor 16 is used to detect the airflow speed of the suction pipe 14, thereby controlling the dust absorption effect according to actual needs and improving the flexibility and practicality of the device.
[0035] The dust-free filling hood 5 is made of transparent acrylic sheet, and the connecting pipe 4 is composed of foldable flexible hose.
[0036] The dust-free injection hood 5, made of transparent acrylic sheet, facilitates observation of the graphite dust conveying process, ensuring the accuracy and stability of the injection process. The connecting pipe 4, composed of foldable flexible hoses, has good flexibility and adaptability, and its shape and length can be adjusted according to actual needs, further improving the practicality and convenience of the device.
[0037] The upper opening of the material dispersing disc 9 is the same size as the opening at the connection between the connecting pipe 4 and the dust-free material dispersing hood 5. The upper inner center of the material dispersing disc 9 is cone-shaped.
[0038] The conical injection dispersion disc 9 helps to evenly distribute graphite dust into the mold, ensuring uniform injection and improving the quality of graphite products.
[0039] Working Principle: During operation, graphite powder raw material is first added into the graphite silo 2. Then, the drive motor 7 is started. The output shaft of the drive motor 7 drives the screw feeder 6 to rotate in the lower end of the graphite silo 2, thereby guiding the graphite powder raw material into the conveying pipe 3 through the conveying action of the screw feeder 6 and the drive motor 7. After passing through the connecting pipe 4 and the dust-free injection hood 5, it is finally delivered onto the graphite product molding die. During this process, two sets of dust removal fans 13 are started. Through the suction action of the two sets of dust removal fans 13, the flying dust generated in the dust-free injection hood 5 is removed. The splashed dust is sucked out through the suction pipe 14 and recycled into the graphite hopper 2 through the return pipe 17. The airflow speed of the suction pipe 14 can be detected by the detection sensor 16, so the dust absorption effect can be controlled according to actual needs, improving the flexibility and practicality of the device. When the graphite dust raw material enters the dust-free injection hood 5 from the connecting pipe 4, the graphite dust raw material is dispersed by the injection dispersion plate 9 and multiple sets of inclined discharge pipes 10 set in the dust-free injection hood 5, and the graphite dust raw material is evenly fed into the graphite product molding mold.
[0040] 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. A dust-free injection device for graphite pressing and molding, comprising an injection device frame (1), characterized in that: A graphite silo (2) is fixedly installed at the upper end of the injection device frame (1). A conveying pipe (3) is provided at the right end of the graphite silo (2). A connecting pipe (4) is fixedly installed at the lower end of the conveying pipe (3). A dust-free injection hood (5) is fixedly installed at the lower end of the connecting pipe (4). A spiral feeding rod (6) is rotatably installed inside the lower end of the graphite silo (2). A drive motor (7) is fixedly installed on the left side of the graphite silo (2). The output shaft of the drive motor (7) is fixedly connected to the spiral feeding rod (6). The right end of the spiral feeding rod (6) is movably inserted into the conveying pipe (3). A cover plate (8) is rotatably installed at the upper opening of the graphite silo (2). A dust removal component is provided inside the injection device frame (1).
2. The graphite pressing and molding dust-free injection device according to claim 1, characterized in that: The lower end of the dust-free filling hood (5) is provided with a sealing skirt (11), which is made of silicone material.
3. The graphite pressing and molding dust-free injection device according to claim 1, characterized in that: The upper end of the dust-free injection hood (5) is fixedly installed at the connection point with the connecting pipe (4) and the injection dispersion disc (9) is provided with multiple sets of inclined discharge pipes (10) in a ring at the lower end of the injection dispersion disc (9).
4. The graphite pressing and molding dust-free injection device according to claim 1, characterized in that: The dust removal assembly includes a mounting plate (12), which is fixedly installed in the lower end of the injection device frame (1). Two sets of dust removal fans (13) are fixedly installed on the upper side of the mounting plate (12). A suction pipe (14) is fixedly installed at the right end opening of the two sets of dust removal fans (13). The suction pipe (14) is connected to the dust-free injection hood (5). A control valve (15) is provided at the connection between the two sets of dust removal fans (13) and the two sets of suction pipes (14). A return pipe (17) is provided at the left side opening of the two sets of dust removal fans (13). The upper end of the return pipe (17) is fixedly connected to the dust removal fan (13).
5. The graphite pressing and molding dust-free injection device according to claim 4, characterized in that: A detection sensor (16) is provided on the suction pipe (14).
6. The graphite pressing and molding dust-free injection device according to claim 1, characterized in that: The dust-free filling hood (5) is made of transparent acrylic sheet, and the connecting pipe (4) is composed of foldable flexible hose.
7. The graphite pressing and molding dust-free injection device according to claim 3, characterized in that: The upper opening of the material dispersing disc (9) is the same size as the opening at the connection between the connecting pipe (4) and the dust-free material dispersing hood (5), and the upper inner center of the material dispersing disc (9) is cone-shaped.