Stainless steel powder metallurgy filtering device

Abstract

The utility model discloses a stainless steel powder metallurgy filtering device which comprises an outer cylinder and a horizontal type filtering cylinder, pipelines are installed at the two ends of the horizontal type filtering cylinder, the pipelines are installed in an inner ring of a sealing bearing and extend outwards, a first sealing plug is arranged in the pipeline on one side, a second sealing plug is arranged in the pipeline on the other side, and the first sealing plug is connected with the second sealing plug. An air outlet pipe is mounted between the first sealing plug and the second sealing plug, a plurality of air outlet holes are formed in the upper half part of the air outlet pipe, a driving mechanism for driving the horizontal filter cartridge to rotate is mounted at one end of the outer barrel, and an air cylinder for driving the first sealing plug and the second sealing plug to move is mounted at the other end of the outer barrel. According to the utility model, the structure is simple, the internal powder can quickly pass through the filter holes in the lower half part of the horizontal filter cartridge through the vibration, gravity and rotation of the horizontal filter cartridge, and the air flow can be sprayed upwards through the air outlet pipe, so that the powder can pass through the filter holes in the upper half part of the filter cartridge; and the utilization rate and the filtering efficiency of the horizontal filter cartridge are improved.

Description

Technical Field

[0001] This utility model relates to the field of stainless steel powder filtration technology, specifically to a stainless steel powder metallurgy filtration device. Background Technology

[0002] Stainless steel powder is made from tiny stainless steel particles through atomization, mechanical grinding, or chemical methods. It is widely used in additive manufacturing (3D printing), powder metallurgy, surface engineering, and other fields.

[0003] However, impurities (such as slag and incompletely atomized coarse particles) may be generated during the stainless steel powder manufacturing process. In this case, it is necessary to remove excessively large or excessively fine particles by sieving (filtration).

[0004] Currently, filtration is generally carried out using filter cartridges. However, the current filter cartridges have a simple structure and typically filter by vibration. This structure usually only utilizes the filter holes in the lower half of the filter cartridge, preventing powder from passing through the filter holes in the upper half. This results in insufficient utilization of the filter holes and affects filtration efficiency. Summary of the Invention

[0005] The technical problem to be solved by this utility model is to provide a stainless steel powder metallurgy filtration device that allows powder to pass through the lower half of a horizontal filter cylinder through vibration and gravity, while airflow can push some powder upwards, thereby solving the problems mentioned in the background art.

[0006] This utility model is achieved through the following technical solution: a stainless steel powder metallurgy filtration device, comprising an outer cylinder and a horizontal filter cylinder. The outer cylinder has through holes at both ends, and sealed bearings are installed on the inner ring surfaces of the through holes. The horizontal filter cylinder is disposed inside the outer cylinder, and pipes are installed at both ends of the horizontal filter cylinder. The pipes are all installed in the inner rings of the sealed bearings and extend outward. A first sealing plug is provided in one pipe and a second sealing plug is provided in the other pipe. An air outlet pipe is installed between the first sealing plug and the second sealing plug. The upper half of the air outlet pipe has multiple air outlet holes. A drive mechanism for rotating the horizontal filter cylinder is installed at one end of the outer cylinder, and a cylinder for moving the first sealing plug and the second sealing plug is installed at the other end of the outer cylinder.

[0007] As a preferred technical solution, the outer cylinder is provided with a bottom plate, and multiple support columns are installed between the bottom plate and the outer cylinder. A discharge pipe is installed at the end of the outer cylinder facing the bottom plate, and a filter membrane is installed in each of the air outlet holes.

[0008] As a preferred technical solution, the drive mechanism includes a motor and a drive wheel. The drive wheel is mounted on the motor shaft. The pipe and the bedroom filter cartridge are driven by the drive wheel. A first fixing frame is installed between the motor and the outer cylinder.

[0009] As a preferred technical solution, the piston rod of the cylinder is mounted on the first sealing plug, a second fixing bracket is installed between the cylinder and the outer cylinder, the inner side of the first sealing plug is provided with a channel communicating with the air outlet pipe, and the outer end face of the first sealing plug is provided with an air inlet pipe communicating with the channel.

[0010] As a preferred technical solution, a vibrator is installed on the outer wall surface of the outer cylinder.

[0011] As a preferred technical solution, a feed hopper is installed on the pipe facing the cylinder, and the inner opening of the feed hopper is sealed by a first sealing plug.

[0012] As a preferred technical solution, the outer cylinder, pipe, bedroom filter cylinder, first sealing plug and second sealing plug are all made of stainless steel.

[0013] The beneficial effects of this utility model are as follows: This utility model has a simple structure. The horizontal filter cylinder, through vibration, gravity, and rotation, allows the powder inside to pass quickly through the filter holes in the lower half of the horizontal filter cylinder. Meanwhile, the air outlet pipe can spray air upwards, allowing the powder to pass through the filter holes in the upper half of the filter cylinder, thus increasing the utilization rate and filtration efficiency of the horizontal filter cylinder. Furthermore, the outward movement of the first and second sealing plugs allows for the rapid removal of filtered impurities, facilitating processing. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a side view of the present invention;

[0017] Figure 3 This is a schematic diagram of the structure of the horizontal filter cartridge of this utility model.

[0018] Figure 4 This is a cross-sectional view of the present invention.

[0019] The components are as follows: 1. Outer cylinder; 2. Pipe; 3. Second sealing plug; 4. Motor; 5. Drive wheel; 7. Feed hopper; 8. Cylinder; 9. Vibrator; 10. Discharge pipe; 11. Base plate; 12. First sealing plug; 13. Air inlet pipe; 14. Sealed bearing; 15. Filter cylinder; 16. Air outlet pipe; 17. Air outlet hole. Detailed Implementation

[0020] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0021] All features disclosed in this specification, or all steps in all disclosed methods or processes, may be combined in any way, except for mutually exclusive features and / or steps.

[0022] Any feature disclosed in this specification (including any appended claims, abstract, and drawings) may be replaced by other equivalent or similar features, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.

[0023] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a stainless steel powder metallurgy filtration device of this utility model includes an outer cylinder 1 and a horizontal filter cylinder 15. The outer cylinder 1 has through holes at both ends, and a sealing bearing 14 is installed on the inner ring surface of each through hole. The horizontal filter cylinder 15 is disposed inside the outer cylinder 1, and pipes 2 are installed at both ends of the horizontal filter cylinder 15. The pipes 2 are installed in the inner ring of the sealing bearings 14 and extend outward. A first sealing plug 12 is provided in one side of the pipe 2, and a second sealing plug 3 is provided in the other side of the pipe 2. An air outlet pipe 16 is installed between the first sealing plug 12 and the second sealing plug 3. The upper half of the air outlet pipe 16 is provided with multiple air outlet holes 17. A drive mechanism for rotating the horizontal filter cylinder 15 is installed at one end of the outer cylinder 1, and a cylinder 8 for moving the first sealing plug 12 and the second sealing plug 3 is installed at the other end of the outer cylinder 1.

[0024] In this embodiment, the outer cylinder 1 is provided with a bottom plate 11, and multiple support columns are installed between the bottom plate 11 and the outer cylinder 1. A discharge pipe 10 is installed at the end of the outer cylinder 1 facing the bottom plate 11, and a filter membrane is installed in each of the air outlets 17. The filter screen can intercept stainless steel powder, preventing stainless steel powder from entering the air outlet.

[0025] In this embodiment, the driving mechanism includes a motor 4 and a driving wheel 5. The driving wheel 5 is mounted on the rotating shaft of the motor 4. The pipe 2 and the bedroom filter cartridge 15 are driven by the driving wheel 5. A first fixing frame is installed between the motor 4 and the outer cylinder 1.

[0026] The drive wheel can be a gear, and the pipe can be fitted with teeth. The rotation of the pipe and the bedroom filter cartridge is driven by the meshing of the gears to ensure the efficiency of the rotation.

[0027] In this embodiment, the piston rod of the cylinder 8 is mounted on the first sealing plug 12, and a second fixing bracket is installed between the cylinder 8 and the outer cylinder 1. The inner side of the first sealing plug 12 is provided with a channel communicating with the air outlet pipe 16, and the outer end face of the first sealing plug 12 is provided with an air inlet pipe 13 communicating with the channel. One end of the air inlet pipe is connected to an air compressor pump through a pipe. The air compressor pump can spray gas upward, which can make the stainless steel powder rotating upward pass through the filter holes of the upper part of the horizontal filter cylinder. The thrust of the airflow can make the filtered stainless steel powder move downward in an arc shape along the inner wall of the outer cylinder until it is discharged from the discharge pipe, so as to complete the gas convection.

[0028] In this embodiment, a vibrator 9 is installed on the outer wall surface of the outer cylinder 1.

[0029] In this embodiment, a feed hopper 7 is installed on the pipe 2 facing the cylinder 8, and the inner opening of the feed hopper 7 is sealed by a first sealing plug 12.

[0030] In this embodiment, the outer cylinder 1, pipe 2, bedroom filter cylinder 15, first sealing plug 12 and second sealing plug 3 are all made of stainless steel, which avoids rusting and increases service life. The outer ring surfaces of the first sealing plug and the second sealing plug are both smooth, which reduces friction with the pipe. Rubber rings can be embedded on the outer ring surfaces of the first sealing plug and the second sealing plug to increase the sealing between them and the pipe.

[0031] When in use, the cylinder is activated, causing the piston rod of the first cylinder to retract. The movement of the piston rod drives the first sealing plug and the second sealing plug. After the first sealing plug moves away from the inside of the feed hopper, the stainless steel powder can be poured into the pipeline along the feed pipe. After the piston rod of the cylinder extends, the first sealing plug can push the stainless steel powder and push it into the horizontal filter cartridge, and seal the opening on the inside of the feed hopper again to ensure the sealing of the opening on the outside of the pipeline.

[0032] After the above is completed, start the vibrator and motor. The vibration energy generated by the vibrator acts on the horizontal filter cartridge. The start of the motor drives the drive wheel, which in turn drives the pipe and the horizontal filter cartridge to rotate. Through vibration and rotation, the stainless steel powder inside can quickly pass through the filter holes in the lower half of the horizontal filter cartridge until it is discharged from the discharge pipe.

[0033] One end of the air inlet pipe is connected to an air compressor pump via an air pipe. The air compressor pump can inject gas into the air outlet pipe along the air inlet pipe and channel until it is discharged from the air outlet. The gas sprayed upward can come into contact with the stainless steel powder carried to the top by the horizontal filter cartridge, so that the stainless steel powder can pass through the filter holes in the upper part of the horizontal filter cartridge, increasing the utilization rate and filtration efficiency of the horizontal filter cartridge.

[0034] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions conceived without inventive effort should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope defined in the claims.

Claims

1. A stainless steel powder metallurgy filtration device, characterized by: The device includes an outer cylinder (1) and a horizontal filter cylinder (15). The outer cylinder (1) has through holes at both ends, and sealed bearings (14) are installed on the inner ring surface of the through holes. The horizontal filter cylinder (15) is located inside the outer cylinder (1). Pipes (2) are installed at both ends of the horizontal filter cylinder (15). The pipes (2) are installed in the inner ring of the sealed bearings (14) and extend outward. A first sealing plug (12) is provided in one pipe (2), and a second sealing plug (3) is provided in the other pipe (2). An air outlet pipe (16) is installed between the first sealing plug (12) and the second sealing plug (3). The upper half of the air outlet pipe (16) is provided with multiple air outlet holes (17). A drive mechanism for rotating the horizontal filter cylinder (15) is installed at one end of the outer cylinder (1), and a cylinder (8) for moving the first sealing plug (12) and the second sealing plug (3) is installed at the other end of the outer cylinder (1).

2. The stainless steel powder metallurgy filtration device of claim 1, wherein: The outer cylinder (1) is provided with a bottom plate (11), and multiple support columns are installed between the bottom plate (11) and the outer cylinder (1). A discharge pipe (10) is installed at the end of the outer cylinder (1) facing the bottom plate (11), and a filter membrane is installed in each of the air outlets (17).

3. The stainless steel powder metallurgy filtration device of claim 1, wherein: The drive mechanism includes a motor (4) and a drive wheel (5). The drive wheel (5) is mounted on the shaft of the motor (4). The pipe (2) and the horizontal filter cylinder (15) are driven by the drive wheel (5). A first fixed frame is installed between the motor (4) and the outer cylinder (1).

4. The stainless steel powder metallurgy filtration device of claim 1, wherein: The piston rod of the cylinder (8) is mounted on the first sealing plug (12). A second fixing bracket is installed between the cylinder (8) and the outer cylinder (1). The inner side of the first sealing plug (12) is provided with a channel communicating with the air outlet pipe (16). An air inlet pipe (13) communicating with the channel is installed on the outer end face of the first sealing plug (12).

5. The stainless steel powder metallurgy filtration device of claim 1, wherein: A vibrator (9) is installed on the outer wall surface of the outer cylinder (1).

6. The stainless steel powder metallurgy filtration device of claim 1, wherein: A feed hopper (7) is installed on the pipe (2) facing the cylinder (8), and the inner opening of the feed hopper (7) is sealed by a first sealing plug (12).

7. The stainless steel powder metallurgy filtration device of claim 1, wherein: The outer cylinder (1), pipe (2), horizontal filter cylinder (15), first sealing plug (12) and second sealing plug (3) are all made of stainless steel.

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