CN-121974156-A - System for cyclic utilization of metal magnetic powder core cladding powder

Abstract

The invention discloses a system for recycling metal magnetic powder core cladding powder, which comprises a material platform, a pushing box, an annular collecting tank, a vacuum pump, a second conveying pipeline, a backflow prevention component and a backflow prevention component, wherein the material platform is used for bearing a high-stage material barrel, the annular collecting tank is positioned below the high-stage material barrel and is communicated through a first conveying pipeline, the annular collecting tank is arranged at the edge of the pushing box and is used for collecting powder overflowing from the pushing box, an air suction port of the vacuum pump is communicated with the collecting tank, the second conveying pipeline is connected between the collecting tank and the high-stage material barrel, the vacuum pump is used for providing negative pressure so as to convey the powder collected in the collecting tank to the high-stage material barrel through the second conveying pipeline, and the backflow prevention component is arranged on the second conveying pipeline and is used for preventing the powder in the pipeline from falling back to the collecting tank when the vacuum pump stops working. The invention aims to improve the recovery efficiency and reduce the waste rate.

Inventors

• YANG QINGLIN
• GU YANG
• TANG ZIYUAN
• LI QINGBO
• WU XIULING
• ZHANG WU
• DAI JIAN

Assignees

• 湖南特种金属材料有限责任公司

Dates

Publication Date

20260505

Application Date

20251230

Claims (10)

1. 1. A system for recycling coated powder of a metal magnetic powder core, the system comprising: the material platform (1) is used for bearing the high-platform charging basket (2); The pushing box (3) is positioned below the high-platform charging basket (2) and is communicated with the high-platform charging basket through a first conveying pipeline (6); the collecting groove (4) is arranged at the edge of the pushing box (3) and is used for collecting powder overflowed from the pushing box (3); A vacuum pump (5), the air suction port of which is communicated with the collecting tank (4); The second conveying pipeline (7) is connected between the collecting tank (4) and the high-level charging basket (2), and the vacuum pump (5) is used for providing negative pressure so as to convey the powder collected in the collecting tank (4) to the high-level charging basket (2) through the second conveying pipeline (7); and the backflow prevention component is arranged on the second conveying pipeline (7) and is used for preventing powder in the pipeline from falling back to the collecting tank (4) when the vacuum pump (5) stops working.
2. 2. A metal magnetic powder core cladding powder recycling system according to claim 1, characterized in that the inner side wall of the collecting tank (4) is provided with an inclined surface facing the tank bottom.
3. 3. The system for recycling the metal magnetic powder core cladding powder according to claim 2, wherein an included angle between the inclined surface and the horizontal plane is 30 degrees, and a lowest point at the bottom of the collecting tank (4) is provided with a material sucking port.
4. 4. A metal magnetic powder core cladding powder recycling system according to claim 3, wherein a filter screen is arranged on the inner side of the material suction port.
5. 5. A system for recycling coated powders of metal magnetic powder cores according to claim 1, characterized in that the backflow prevention means is an electromagnetically controlled unidirectional transmission gas valve, which is electrically connected to the control system of the vacuum pump (5) and configured to be opened when the vacuum pump (5) is started and closed when the vacuum pump (5) is stopped.
6. 6. A system for recycling coated powders of metal magnetic powder cores according to claim 5, characterized in that said electromagnetically controlled unidirectional transmission gas valve is mounted in a section of said second conveying duct (7) close to 1/3 to 1/2 of the height of said high-level bucket (2).
7. 7. A system for recycling coated powders of metal magnetic powder cores according to claim 1, characterized in that the vacuum pump (5) is a roots vacuum pump.
8. 8. A metal magnetic powder core coated powder recycling system according to claim 7, wherein the power of the roots vacuum pump is 5.5kW.
9. 9. The system for recycling the metal magnetic powder core cladding powder according to claim 1, wherein the first conveying pipeline (6) and the second conveying pipeline (7) are both wear-resistant polyurethane pipelines.
10. 10. A system for recycling coated metal powder according to any of claims 1-9, characterized in that the second transportation pipe (7) is laid partly along the plant upright or the wall.

Description

System for cyclic utilization of metal magnetic powder core cladding powder Technical Field The invention relates to the technical field of metal magnetic powder cores, in particular to a system for recycling coating powder of a metal magnetic powder core. Background In the metal magnetic powder core forming production process, powder raw materials are required to be conveyed into a pushing box below from a high platform charging basket 3m away from the ground through a conveying pipeline under the action of gravity, and then the powder is conveyed into a die platform of a die by the pushing box for forming processing. Due to the impact kinetic energy existing in the powder falling process, and the joint of the pushing box and the conveying pipeline is difficult to realize complete sealing, about 15% -20% of powder can overflow from the edge of the pushing box. Meanwhile, excessive powder can be continuously accumulated on the female die table of the die in the continuous production process, and the overflowed and accumulated powder cannot be timely recovered and reused, so that serious raw material waste is caused, special persons are required to regularly clean the female die table, the labor cost is increased, dust pollution is easily generated in the cleaning process, and the workshop production environment is influenced. The prior patent publication No. CN117699469A discloses a suction mechanism and application in magnetic powder collection, the core structure of the suction mechanism comprises a cannula, a stay bar, an elastic piece and a control system, the cannula is unfolded and stabilized through the stay bar, the elastic piece is used for energy storage, and an electromagnetic valve is used for controlling powder flow, but the application scene of the suction mechanism is limited to powder stack suction in a container, and the problems of high-altitude conveying, powder overflow collection or falling prevention are not involved. Disclosure of Invention The invention mainly aims to provide a system for recycling coated powder of a metal magnetic powder core, and aims to solve the problem of powder overflow waste in the existing magnetic powder core molding production. In order to achieve the above object, the present invention provides a system for recycling coated powder of a metal magnetic powder core, the apparatus comprising: The material platform is used for bearing the high-platform charging basket; The pushing box is positioned below the high-platform charging basket and is communicated with the high-platform charging basket through a first conveying pipeline; The collecting groove is arranged at the edge of the pushing box and is used for collecting powder overflowed from the pushing box; The air suction port of the vacuum pump is communicated with the collecting tank; The vacuum pump is used for providing negative pressure so as to convey the powder collected in the collecting tank to the high-stage charging basket through the second conveying pipeline; and the backflow prevention component is arranged on the second conveying pipeline and used for preventing powder in the pipeline from falling back to the collecting tank when the vacuum pump stops working. Optionally, the side wall of the collecting tank is provided with an inclined surface facing the tank bottom. Optionally, the included angle between the inclined plane and the horizontal plane is 30 degrees, and the lowest point of the bottom of the material collecting groove is provided with a material sucking opening. Optionally, a filter screen is arranged on the inner side of the material suction opening. Optionally, the backflow prevention component is an electromagnetic control unidirectional transmission air valve, and the air valve is in electrical signal connection with a control system of the vacuum pump and is configured to be opened when the vacuum pump is started and closed when the vacuum pump is stopped. Optionally, the electromagnetic control unidirectional transmission air valve is installed at a 1/3 to 1/2 height section of the second conveying pipeline close to the high platform charging basket. Optionally, the vacuum pump is a roots vacuum pump. Alternatively, the Roots vacuum pump has a power of 5.5kW. Optionally, the first conveying pipeline and the second conveying pipeline are both wear-resistant polyurethane pipelines. Optionally, the second conveying pipe section is laid along a shop floor or wall. The beneficial effects are that: (1) Through the annular collecting groove that encircles the setting of pushing away the magazine, can collect the powder that overflows from all directions without the dead angle, cooperate efficient vacuum negative pressure conveying system, can reduce the powder unrestrained rate from 15% -20% to below 3%, raw materials recycle promotes more than 85%. (2) By arranging the electromagnetic control unidirectional transmission air valve which is linked with the vacuum pump on the secon