Drying equipment for magnetic powder

Abstract

The utility model belongs to the technical field of magnetic powder processing, and particularly relates to drying equipment for magnetic powder, which comprises a base, a feeding part and a discharging part are arranged on the base, a ramp is arranged between the feeding part and the discharging part, a sealing cover shell is arranged between the feeding part and the ramp, a circulation cavity is arranged in the sealing cover shell, an air outlet is arranged on the circulation cavity, and the air outlet is communicated with the feeding part and the discharging part. A heater is installed on the sealing cover shell, the output end of the heater penetrates through the sealing cover shell to be arranged in the circulation cavity, magnetic powder enters from the feeding port and is conveyed to the discharging port through the conveying belt, hot air is conveyed into the circulation cavity through the heater, and the hot air circulates into the containing cavity from the air outlet. The magnetic powder on the conveying belt is heated and degassed by the hot air at the moment, gas attached to the surface of the magnetic powder is removed, and due to the fact that the nine air outlets are formed, when the magnetic powder is conveyed on the conveying belt, the magnetic powder at different positions on the conveying belt can be heated; compared with the prior art, the magnetic powder drying device can dry magnetic powder and improve the quality of powder metallurgy workpieces.

Description

Technical Field

[0001] The utility model relates to the technical field of magnetic powder processing, and more specifically, to a drying device for magnetic powder. Background Art

[0002] Magnetic powder is a kind of hard magnetic single-domain particle. It is made into magnetic slurry with adhesives, solvents, etc., and coated on the surface of plastic or metal substrates to make magnetic recording materials such as magnetic tapes, disks, and magnetic cards. Magnetic powder is the core component of magnetic coatings and the main factor that determines the magnetic properties of magnetic recording media.

[0003] For example, the authorization announcement number CN212197119U discloses a magnetic powder conveying device, which includes a base and a loading part and a unloading part arranged on the base, and an inclined conveying part is also arranged between the loading part and the unloading part. The unloading part is arranged above the loading part, and a recovery mechanism is provided at the bottom of the unloading part. The recovery mechanism includes a recovery bin, the top of the recovery bin is connected with the unloading part, and an opening is provided on the side of the recovery bin away from the loading part.

[0004] In the above, conveying equipment is needed to transport the magnetic powder during the processing of the magnetic powder, but the existing magnetic powder conveying equipment does not have the function of drying the magnetic powder. Since the magnetic powder is in contact with the air for a long time, a small amount of moisture will adhere to its surface. If it cannot be dried, it will have a certain impact on the subsequent processing and affect the quality of powder metallurgy parts. Utility Model Content

[0005] In view of the shortcomings of the prior art, the utility model aims to provide a drying device for magnetic powder which can dry the magnetic powder and improve the quality of powder metallurgy products.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A drying device for magnetic powder comprises a base, on which a feeding part and a feeding part are provided, both of which are placed above the base and connected to the base, a feeding port for feeding magnetic powder is provided on the feeding part, a discharging port for discharging magnetic powder is provided on the discharging part, a ramp is provided between the feeding part and the discharging part, the ramp is inclined from one side of the feeding part to one side of the discharging part, a conveyor belt is provided on the ramp, a cover shell is provided between the feeding part and the ramp, the cover shell is placed above the feeding part and the ramp and are connected to the feeding part and the ramp, a containing chamber for magnetic powder circulation exists between the cover shell and the conveyor belt, the containing chamber is connected to the feeding port and the discharging port, a circulation chamber is provided in the cover shell, a plurality of air outlets connected to the containing chamber are provided on the circulation chamber, a heater is provided on the cover shell, and the output end of the heater passes through the cover shell and is placed in the circulation chamber.

[0008] The utility model is further configured as follows: a partition net is provided on the air outlet, the partition net is connected to the inner wall of the air outlet, a plurality of holes are opened on the partition net, and the holes are communicated with the air outlet.

[0009] The utility model is further configured as follows: a through hole is opened on the sealing cover shell, the through hole is connected with the flow chamber, and the output end of the heater is placed in the through hole.

[0010] The utility model is further configured as follows: a first filter screen and a second filter screen are provided at the feed inlet, the first filter screen is placed above the second filter screen, and the mesh diameter of the first filter screen is greater than the mesh diameter of the second filter screen.

[0011] The utility model is further configured as follows: a collecting frame is provided below the material discharge portion, and the collecting frame is placed below the second filter screen.

[0012] By adopting the above technical solution, the beneficial effects of the utility model are:

[0013] The magnetic powder enters from the feed port and is transported to the discharge port through the conveyor belt. The hot air is transmitted to the circulation chamber through the heater, and the hot air flows from the air outlet to the containing chamber. The hot air at this time heats and degases the magnetic powder on the conveyor belt and removes the gas attached to the surface of the magnetic powder. Since nine air outlets are installed, the magnetic powder at different positions on the conveyor belt can be heated when it is transported on the conveyor belt, which can dry the magnetic powder and improve the quality of powder metallurgy parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A three-dimensional diagram of an embodiment of the utility model;

[0015] Figure 2 A cross-sectional view of an embodiment of the utility model;

[0016] Figure 3 It is a schematic diagram of the structure between the utility model cover shell and the air outlet.

[0017] Base 1, loading part 2, unloading part 3, feeding port 4, discharging port 5, ramp 6, conveyor belt 7, sealing shell 8, accommodating chamber 9, circulation chamber 10, air outlet 11, heater 12, partition net 13, first filter net 14, second filter net 15, collecting frame 16. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0020] like Figures 1 to 3 As shown, the drying equipment for magnetic powder includes a base 1, on which a loading part 2 and a lowering part 3 are mounted. Both the loading part 2 and the lowering part 3 are placed above the base 1 and are integrally formed with the base 1.

[0021] A feed port 4 for feeding magnetic powder is provided on the upper material part 2, and a discharge port 5 for discharging magnetic powder is provided on the lower material part 3. A first filter screen 14 and a second filter screen 15 are installed at the feed port 4. The first filter screen 14 is placed above the second filter screen 15, and the mesh diameter of the first filter screen 14 is larger than the mesh diameter of the second filter screen 15.

[0022] A collecting frame 16 is installed below the unloading part 3, and the collecting frame 16 is placed below the second filter screen 15. A ramp 6 is installed between the loading part 2 and the unloading part 3 for the magnetic powder falling into the discharge port 5. The ramp 6 is inclined from one side of the loading part 2 to one side of the unloading part 3, and a conveyor belt 7 is installed on the ramp 6.

[0023] The magnetic powder enters from the feed port 4 and passes through the conveyor belt 7. The conveyor belt 7 flows the magnetic powder to the discharge port 5. The magnetic powder first passes through the first filter screen 14 and then passes through the second filter screen 15 for screening. After the screening, the magnetic powder falls into the collection frame 16.

[0024] A cover shell 8 is installed between the feeding part 2 and the ramp 6. The cover shell 8 is placed above the feeding part 2 and the ramp 6 and is connected to the feeding part 2 and the ramp 6. A receiving chamber 9 for magnetic powder circulation is present between the cover shell 8 and the conveyor belt 7. The receiving chamber 9 is connected to the feeding port 4 and the discharging port 5.

[0025] The cover shell 8 has a circulation chamber 10 therein, and nine air outlets 11 connected to the accommodating chamber 9 are formed in the circulation chamber 10. A partition net 13 is installed on the air outlet 11, and the partition net 13 is connected to the inner wall of the air outlet 11. The partition net 13 has a plurality of holes formed on it, and the holes are connected to the air outlet 11.

[0026] A through hole is provided on the cover shell 8 , which is connected to the flow chamber 10 . A heater 12 is installed on the cover shell 8 . The heater 12 is placed on the cover shell 8 on the feeding part 2 , and an output end of the heater 12 is placed in the flow chamber 10 through the through hole.

[0027] Working principle: Magnetic powder enters from the feed port 4 and is transported to the discharge port 5 through the conveyor belt 7. The hot air is transmitted to the circulation chamber 10 through the heater 12. The hot air flows from the air outlet 11 to the containing chamber 9. The hot air at this time heats and degases the magnetic powder on the conveyor belt 7 and removes the gas attached to the surface of the magnetic powder. Since nine air outlets 11 are installed, the magnetic powder at different positions on the conveyor belt 7 can be heated when it is transported on the conveyor belt 7, so the magnetic powder can be dried and the quality of powder metallurgy parts can be improved.

[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any common changes and substitutions made by those skilled in the art within the technical solution of the present invention should be included in the protection scope of the present invention.

Claims

1. A drying device for magnetic powder, comprising a base (1), characterized in that: The base (1) is provided with a loading portion (2) and a lowering portion (3), and the loading portion (2) and the lowering portion (3) are both placed above the base (1) and connected to the base (1). The upper material portion (2) is provided with a feeding port (4) for feeding magnetic powder, and the lower material portion (3) is provided with a discharging port (5) for discharging magnetic powder. A ramp (6) is also provided between the loading part (2) and the unloading part (3), the ramp (6) being inclined from one side of the loading part (2) to one side of the unloading part (3), and a conveyor belt (7) is provided on the ramp (6). A sealing shell (8) is provided between the feeding portion (2) and the ramp (6). The sealing shell (8) is placed above the feeding portion (2) and the ramp (6) and is connected to the feeding portion (2) and the ramp (6). A containing chamber (9) for the magnetic powder to flow is provided between the sealing shell (8) and the conveyor belt (7), and the containing chamber (9) is connected to the feed port (4) and the discharge port (5). The sealing shell (8) has a circulation chamber (10) therein, and the circulation chamber (10) is provided with a plurality of air outlets (11) which are connected to the accommodating chamber (9). A heater (12) is provided on the sealing shell (8), and an output end of the heater (12) passes through the sealing shell (8) and is placed in the flow chamber (10).

2. A drying device for magnetic powder according to claim 1, characterized in that: The air outlet (11) is provided with a partition net (13), the partition net (13) is connected to the inner wall of the air outlet (11), and a plurality of holes are opened on the partition net (13), which are in communication with the air outlet (11).

3. A drying device for magnetic powder according to claim 1, characterized in that: The sealing cover shell (8) is provided with a through hole, the through hole is connected to the flow chamber (10), and the output end of the heater (12) is placed in the through hole.

4. The drying device for magnetic powder according to claim 1, characterized in that: A first filter screen (14) and a second filter screen (15) are provided at the feed inlet (4); the first filter screen (14) is placed above the second filter screen (15); and the mesh diameter of the first filter screen (14) is greater than the mesh diameter of the second filter screen (15).

5. A drying device for magnetic powder according to claim 4, characterized in that: A collecting frame (16) is provided below the material discharge portion (3), and the collecting frame (16) is placed below the second filter screen (15).

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