Air filtering device for metal powder processing

Abstract

The invention belongs to the technical field of air filtering, particularly relates to an air filtering device for metal powder processing, and aims to solve the problems of short service life and difficulty in replacement of a filter screen plate in the background technology, the air filtering device comprises a bottom pipe, a top pipe is arranged on the outer wall of the top of the bottom pipe, and the top pipe is arranged on the outer wall of the top of the bottom pipe. A filter plate replacing mechanism for conveniently replacing the filter plate and a filter plate cleaning mechanism for prolonging the service life of the filter plate are arranged on the bottom pipe and the top pipe, each of the filter plate replacing mechanism and the filter plate cleaning mechanism comprises two parts, and one part is positioned in the bottom pipe and the top pipe. Under the action of the filter plate cleaning mechanism, the filter screen plate between the bottom pipe and the top pipe can be cleaned, the filter screen plate can be automatically cleaned in the pipeline, the cleaning difficulty is greatly reduced, the service life of the filter screen plate is prolonged, the filter screen plate can be quickly replaced through the action of the filter plate replacement mechanism, and the screen replacement time is saved.

Description

Technical Field

[0001] The invention relates to the technical field of air filtration, and in particular to an air filtration device for metal powder processing. Background Art

[0002] Metal powder processing refers to a manufacturing process that uses metal (or alloy) powder as raw material, and through certain forming processes and processing methods, the raw powder is pressed into shape or made into metal parts. This processing technology has the advantages of high precision, good wear resistance, high strength, good corrosion resistance, etc., and is widely used in aviation, aerospace, automobile, electronics, manufacturing and other fields.

[0003] During the processing of metal powder, it is necessary to transport the powder through a blower. In order to avoid the influence of air, a corresponding air filtration structure is generally set on the pipe of the blower so that the air can pass through the filter plate and be discharged from the upper end of the equipment. The metal powder is blocked by the filter plate and falls to the bottom of the pipe by gravity. However, the filter plate needs to be installed inside the pipe, which is inconvenient to clean. After the filter plate has been working for a period of time, the metal powder will be blocked in the inner net, the service life is short, and it is not easy to replace. Summary of the invention

[0004] In view of the deficiencies of the prior art, the present invention provides an air filter device for metal powder processing, which overcomes the deficiencies of the prior art and effectively solves the problems of low service life and difficulty in replacement of the filter screen plate.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] An air filter device for metal powder processing, comprising a bottom tube, a top tube is arranged on the top outer wall of the bottom tube, a top tube is arranged on the top outer wall of the bottom tube, and a filter plate replacement mechanism for facilitating the replacement of filter plates and a filter plate cleaning mechanism for increasing the service life of the filter plates are arranged on the bottom tube and the top tube, wherein the filter plate replacement mechanism and the filter plate cleaning mechanism each comprise two parts, one part is located inside the bottom tube and the top tube, and the other part is arranged outside the bottom tube and the top tube;

[0007] The filter plate replacement mechanism is composed of a conversion assembly and a filter assembly, wherein the conversion assembly is arranged on one side of the bottom pipe, and the filter assembly is installed on the outer wall of the conversion assembly, wherein the filter assembly includes two, which are respectively located on both sides of the conversion assembly;

[0008] The filter plate cleaning mechanism is composed of a top plate, a bottom plate, an upper cleaning assembly, a lifting assembly, a lower vibration assembly and a sealing assembly, wherein the top plate and the bottom plate are respectively welded to the outer walls of the top tube and the bottom tube, the upper cleaning assembly is installed on the outer wall of the top plate, the lower vibration assembly is installed on the outer wall of the bottom plate, the lifting assembly is arranged between the upper cleaning assembly and the lower vibration assembly, and the sealing assembly is arranged on the inner wall of the bottom tube.

[0009] Preferably, the conversion assembly is composed of a connecting column, a fixing seat, a groove, a center column, a steering wheel, an elastic member 1, a turning handle and a connecting frame, wherein the connecting column is welded to an outer wall of one side of the bottom tube, the fixing seat is welded to an outer wall of one end of the connecting column, the groove includes two grooves, which are respectively opened on both sides of the inner circle of the fixing seat, the center column is rotatably connected to the inner wall of the fixing seat, the steering wheel is installed at the bottom of the outer wall of the center column, the elastic member 1 includes two elastic members, which are respectively installed on the inner walls of both sides of the steering wheel, and one end of the elastic member 1 is embedded in the inner wall of the groove, the turning handle is welded to the outer wall of the top of the center column, and the connecting frame is welded to the top of the outer wall of the center column;

[0010] A positioning hole is provided at the center of the outer wall of the bottom of the fixing seat, and the center column is rotatably connected to the inner wall of the positioning hole.

[0011] Preferably, the filter assembly includes an outer frame fixedly connected to the outer walls on both sides of the connecting frame, two symmetrically distributed elastic parts installed on the inner wall of the outer frame, an inner plate slidably connected to the inner wall of the outer frame, and symmetrically distributed positioning grooves opened on the side walls of the inner plate, wherein one end of the second elastic part is embedded in the inner wall of the positioning groove, and the filter screen is installed on the inner wall of the inner plate.

[0012] Preferably, the upper cleaning assembly is composed of a servo motor, a limit tube, a limit plate, a nozzle, a pulley pair and an air pipe, wherein the servo motor is fixedly connected to the top outer wall of the top plate by screws, the limit tube is fixedly connected to the output shaft of the servo motor by a coupling, the limit plate is welded to the inner wall of one side of the top pipe, the nozzle is rotatably connected to the inner wall of one end of the limit plate, and nozzles distributed at equal distances are arranged at the bottom of the nozzle, the pulley pair is installed between the nozzle and the limit tube, and the air pipe runs through the interior of the top pipe and is rotatably connected to the outer wall of one end of the nozzle.

[0013] Preferably, the lifting assembly includes a limit rod slidably connected to the inner wall of the limit tube, a reciprocating screw welded to the outer wall of the bottom of the limit rod, an angle plate welded to the inner wall of the top plate and rotatably connected to the outer wall of the reciprocating screw, an internal threaded tube screwed to the outer wall of the reciprocating screw, a rectangular block welded to the outer wall of the bottom of the internal threaded tube, and the rectangular block is slidably connected to the inner wall of the bottom plate.

[0014] Preferably, the lower excitation assembly includes a long rod welded to the outer wall of the internally threaded tube, a connecting seat welded to the outer wall of one end of the long rod, and an internally threaded sleeve welded to the inner wall of the connecting seat, wherein the internally threaded sleeves include four, all of which are welded to the end of the connecting seat, and the excitation block is screwed to the inner wall of the internally threaded sleeve.

[0015] Preferably, the sealing assembly includes a sealing plate welded to the outer wall of the long rod, an arc-shaped groove opened on the inner wall on the other side of the bottom tube, and the sealing plate is slidably connected to the inner wall of the arc-shaped groove, a strip groove is opened on the outer wall on the other side of the bottom tube, and the strip groove runs through the interior of the arc-shaped groove.

[0016] Preferably, the second elastic member includes a card frame, a guide column welded to the inner wall of the card frame, and a spring fixedly connected between the card frame and the outer frame.

[0017] Preferably, lifting members are provided on the bottom tube and top tube as well as the top plate and bottom plate, and the lifting members include a cylinder fixedly connected between the top plate and the bottom plate, an axle pin welded to the top tube side wall flange, pin holes opened on the outer frame and the bottom tube side wall flange, and the axle pin is slidably connected to the inner wall of the pin hole.

[0018] Preferably, the top outer wall of the top pipe is fixedly connected to a top cover via a flange, an alarm is installed on the outer wall of the top cover, and a pressure gauge is installed on the pipe at the top of the top cover.

[0019] The beneficial effects of the present invention are:

[0020] 1. The air filter device for metal powder processing of the present invention can clean the filter screen plate between the bottom pipe and the top pipe under the action of the filter plate cleaning mechanism, and can automatically clean the filter screen plate inside the pipeline, which greatly reduces the difficulty of cleaning and increases the service life of the filter screen plate. The filter screen plate can be quickly replaced through the action of the filter plate replacement mechanism, saving the time of changing the screen;

[0021] 2. The air filter device for metal powder processing of the present invention can prevent the filter screen from shaking by sliding the inner plate into the position of the second elastic member, and has a quick positioning effect. The old filter screen can be taken out and a clean filter screen can be put in by rotating the handle to control the steering wheel, so that the positions of the two filter screens can be replaced, which greatly saves the replacement time.

[0022] 3. The air filtering device for metal powder processing of the present invention can control the rotation of the nozzle by driving the limit tube to rotate through the servo motor. The nozzle at the bottom of the nozzle can blow air downward to the filter screen, thereby cleaning the upper part of the filter screen. At the same time, the up and down movement of the internal threaded tube can control the long rod to drive the exciting block to continuously hit the filter screen back and forth, thereby cleaning the lower part of the filter screen. The integrated structure has a double cleaning effect, which increases the service life of the filter screen and extends the screen replacement cycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The overall structure of an air filter device for metal powder processing proposed by the present invention is shown in FIG. Figure 1 ;

[0024] Figure 2 The overall structure of an air filter device for metal powder processing proposed by the present invention is shown in FIG. Figure 2 ;

[0025] Figure 3 Schematic diagram of the internal structure of the bottom pipe and top pipe of an air filter device for metal powder processing proposed by the present invention Figure 1 ;

[0026] Figure 4 Schematic diagram of the internal structure of the bottom pipe and top pipe of an air filter device for metal powder processing proposed by the present invention Figure 2 ;

[0027] Figure 5 A schematic diagram of a conversion assembly of an air filter device for metal powder processing proposed by the present invention;

[0028] Figure 6 A schematic diagram of a filter assembly of an air filter device for metal powder processing proposed by the present invention;

[0029] Figure 7 This is a schematic diagram of the internal structure of the elastic member 2 of an air filter device for metal powder processing proposed by the present invention;

[0030] Figure 8 A schematic diagram of a filter plate cleaning mechanism of an air filter device for metal powder processing proposed by the present invention;

[0031] Fig. 9 This is a schematic diagram of the structure of a lifting component of an air filter device for metal powder processing proposed by the present invention;

[0032] Fig.10 This is a schematic diagram of the structure of a limit rod of an air filter device for metal powder processing proposed by the present invention;

[0033] Fig.11This is a schematic diagram of a sealing component of an air filter device for metal powder processing proposed by the present invention.

[0034] In the figure: 1, bottom pipe; 2, top pipe; 3, filter plate replacement mechanism; 31, conversion assembly; 311, connecting column; 312, fixing seat; 313, groove; 314, center column; 315, steering wheel; 316, elastic member 1; 317, turning handle; 318, connecting frame; 32, filter assembly; 321, outer frame; 322, elastic member 2; 323, inner plate; 324, positioning groove; 325, filter screen plate; 4, filter plate cleaning mechanism; 41, top plate; 42, bottom plate; 43, upper cleaning assembly; 431, servo motor; 432, limit tube; 433, limit plate; 434, spray pipe; 435. Pulley pair; 436. Air pipe; 44. Lifting assembly; 441. Limit rod; 442. Reciprocating screw rod; 443. Angle plate; 444. Internally threaded pipe; 445. Rectangular block; 45. Lower excitation assembly; 451. Long rod; 452. Connecting seat; 453. Internally threaded sleeve; 454. Excitation block; 46. Sealing assembly; 461. Sealing plate; 462. Arc groove; 463. Strip groove; 5. Card frame; 6. Guide column; 7. Spring; 8. Lifting piece; 81. Cylinder; 82. Axle pin; 83. Pin hole; 9. Positioning hole; 10. Top cover; 11. Alarm; 12. Barometer. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0036] Embodiment 1, refer to Figure 1-2 An air filtering device for metal powder processing includes a bottom tube 1, a top tube 2 is arranged on the top outer wall of the bottom tube 1, a top tube 2 is arranged on the top outer wall of the bottom tube 1, and a filter plate replacement mechanism 3 for facilitating replacement of filter plates and a filter plate cleaning mechanism 4 for increasing the service life of the filter plates are arranged on the bottom tube 1 and the top tube 2, wherein the filter plate replacement mechanism 3 and the filter plate cleaning mechanism 4 each include two parts, one part is located inside the bottom tube 1 and the top tube 2, and the other part is arranged outside the bottom tube 1 and the top tube 2.

[0037] In this embodiment, under the action of the filter plate cleaning mechanism 4, the filter screen plate 325 between the bottom pipe 1 and the top pipe 2 can be cleaned, and the filter screen plate 325 can be automatically cleaned inside the pipe, which greatly reduces the difficulty of cleaning and increases the service life of the filter screen plate 325. In addition, the filter screen plate 325 can be quickly replaced through the action of the filter plate replacement mechanism 3, saving the time for changing the screen.

[0038] Example 2, refer to Figure 3, an air filtering device for metal powder processing, the filter plate replacement mechanism 3 is composed of a conversion component 31 and a filter component 32, wherein the conversion component 31 is arranged on one side of the bottom pipe 1, and the filter component 32 is installed on the outer wall of the conversion component 31, wherein the filter component 32 includes two, which are respectively located on both sides of the conversion component 31.

[0039] In this embodiment, the inner plate 323 can prevent the filter plate 325 from shaking by sliding into the position of the elastic member 322, which has the effect of quick positioning, and by rotating the handle 317 to drive the steering wheel 315 to turn, the old filter plate 325 can be taken out and the clean filter plate 325 can be put in, thereby realizing the replacement of the positions of the two filter plates and greatly saving the replacement time.

[0040] Example 3, refer to Figure 3-4 , an air filtering device for metal powder processing, the filter plate cleaning mechanism 4 is composed of a top plate 41, a bottom plate 42, an upper cleaning component 43, a lifting component 44, a lower vibration component 45 and a sealing component 46, wherein the top plate 41 and the bottom plate 42 are respectively welded to the outer walls of the top pipe 2 and the bottom pipe 1, the upper cleaning component 43 is installed on the outer wall of the top plate 41, the lower vibration component 45 is installed on the outer wall of the bottom plate 42, the lifting component 44 is arranged between the upper cleaning component 43 and the lower vibration component 45, and the sealing component 46 is arranged on the inner wall of the bottom pipe 1.

[0041] In this embodiment, the rotation of the limit tube 432 is driven by the servo motor 431 to control the rotation of the nozzle 434. The nozzle at the bottom of the nozzle 434 can blow air downward to the filter screen 325, thereby cleaning the upper part of the filter screen 325. At the same time, the up and down movement of the internal threaded tube 444 can control the long rod 451 to drive the exciting block 454 to continuously hit the filter screen 325 back and forth, thereby cleaning the lower part of the filter screen 325. The integrated structure has a double cleaning effect, which increases the service life of the filter screen 325 and extends the screen replacement cycle.

[0042] Reference Figure 5The conversion assembly 31 is composed of a connecting column 311, a fixing seat 312, a groove 313, a center column 314, a steering wheel 315, an elastic member 316, a turning handle 317 and a connecting frame 318, wherein the connecting column 311 is welded to an outer wall of one side of the bottom tube 1, the fixing seat 312 is welded to an outer wall of one end of the connecting column 311, the groove 313 includes two grooves, which are respectively opened on both sides of the inner circle of the fixing seat 312, the center column 314 is rotatably connected to the inner wall of the fixing seat 312, the steering wheel 315 is installed at the bottom of the outer wall of the center column 314, the elastic member 316 includes two elastic members 316, which are respectively installed on the inner walls of both sides of the steering wheel 315, and one end of the elastic member 316 is embedded in the inner wall of the groove 313, the turning handle 317 is welded to the outer wall of the top of the center column 314, and the connecting frame 318 is welded to the top of the outer wall of the center column 314;

[0043] The elastic member 316 will be squeezed in the groove 313, and the elastic member 316 can be controlled to shrink by rotating the handle 317, thereby controlling the steering wheel 315 to turn, thereby facilitating the replacement of the two filter plates, taking out the old filter plate 325, and inserting a clean filter plate 325.

[0044] A positioning hole 9 is formed at the center of the outer wall of the bottom of the fixing seat 312 , and the center column 314 is rotatably connected to the inner wall of the positioning hole 9 .

[0045] Reference Figure 6 The filter assembly 32 includes an outer frame 321 fixedly connected to the outer walls on both sides of the connecting frame 318, a symmetrically distributed elastic member 322 installed on the inner wall of the outer frame 321, an inner plate 323 slidably connected to the inner wall of the outer frame 321, and a symmetrically distributed positioning groove 324 opened on the side wall of the inner plate 323, wherein one end of the elastic member 322 is embedded in the inner wall of the positioning groove 324, and the filter screen plate 325 is installed on the inner wall of the inner plate 323.

[0046] The inner plate 323 outside the filter screen plate 325 can slide its positioning groove 324 into the outer wall of the elastic member 322 along the position of the elastic member 322 to prevent the filter screen plate 325 from shaking, thereby achieving a quick positioning effect.

[0047] Reference Figure 8The upper cleaning assembly 43 is composed of a servo motor 431, a limiting tube 432, a limiting plate 433, a nozzle 434, a pulley pair 435 and an air pipe 436, wherein the servo motor 431 is fixedly connected to the top outer wall of the top plate 41 by screws, the limiting tube 432 is fixedly connected to the output shaft of the servo motor 431 by a coupling, the limiting plate 433 is welded to the inner wall of one side of the top pipe 2, the nozzle 434 is rotatably connected to the inner wall of one end of the limiting plate 433, and nozzles distributed equidistantly are arranged at the bottom of the nozzle 434, the pulley pair 435 is installed between the nozzle 434 and the limiting tube 432, and the air pipe 436 runs through the interior of the top pipe 2 and is rotatably connected to the outer wall of one end of the nozzle 434.

[0048] With the transmission cooperation of the pulley pair 435, the rotation of the limit tube 432 is driven by the servo motor 431 to control the rotation of the nozzle 434. When the air pipe 436 is connected, since the nozzle 434 is arranged above the filter screen 325, the nozzle at the bottom of the nozzle 434 can blow air downward toward the filter screen 325, thereby cleaning the upper part of the filter screen 325.

[0049] Reference Figure 8 and Fig.10 The lifting assembly 44 includes a limiting rod 441 slidably connected to the inner wall of the limiting tube 432, a reciprocating screw rod 442 welded to the outer wall of the bottom of the limiting rod 441, an angle plate 443 welded to the inner wall of the top plate 41 and rotatably connected to the outer wall of the reciprocating screw rod 442, an internal threaded tube 444 screwed to the outer wall of the reciprocating screw rod 442, and a rectangular block 445 welded to the outer wall of the bottom of the internal threaded tube 444, and the rectangular block 445 is slidably connected to the inner wall of the bottom plate 42.

[0050] As the servo motor 431 drives the limit tube 432 to rotate, it can control the limit rod 441 to rotate together, thereby driving the reciprocating screw rod 442 to rotate. Since the internal threaded tube 444 is screwed on the outer wall of the reciprocating screw rod 442, the internal threaded tube 444 and the rectangular block 445 will make a back and forth lifting motion, which is beneficial to control the back and forth lifting of the subsequent lower excitation component 45.

[0051] Reference Fig. 9 The lower excitation assembly 45 includes a long rod 451 welded to the outer wall of the internal threaded tube 444, a connecting seat 452 welded to the outer wall of one end of the long rod 451, and an internal threaded sleeve 453 welded to the inner wall of the connecting seat 452, wherein the internal threaded sleeve 453 includes four, all of which are welded to the end of the connecting seat 452, and the excitation block 454 is screwed to the inner wall of the internal threaded sleeve 453.

[0052] After the vibration block 454 is rotated inside the internal threaded sleeve 453 to adjust the height, as the internal threaded tube 444 rises and falls back and forth, the long rod 451 will drive the vibration block 454 to rise and fall back and forth together, and the vibration block 454 can continuously hit the filter screen plate 325, thereby achieving cleaning of the lower part of the filter screen plate 325.

[0053] Reference Fig.11 The sealing assembly 46 includes a sealing plate 461 welded to the outer wall of the long rod 451, an arc groove 462 opened on the inner wall of the other side of the bottom tube 1, and the sealing plate 461 is slidably connected to the inner wall of the arc groove 462, and a strip groove 463 is opened on the outer wall of the other side of the bottom tube 1, and the strip groove 463 runs through the interior of the arc groove 462.

[0054] Since the sealing plate 461 is installed on the long rod 451, when the long rod 451 moves up and down along the strip groove 463, the sealing plate 461 can slide along the inner wall of the arc groove 462, so that the inner and outer walls of the bottom tube 1 can always maintain a sealed state, thereby preventing metal powder from passing through the strip groove 463 and causing waste of raw materials.

[0055] Reference Figure 7 The second elastic member 322 includes a card frame 5, a guide column 6 welded to the inner wall of the card frame 5, and a spring 7 fixedly connected between the card frame 5 and the outer frame 321.

[0056] When the inner plate 323 outside the filter screen plate 325 is placed into the outer frame 321 , the clamping frame 5 inside the second elastic member 322 will press against the inner wall of the inner plate 323 under the action of the spring 7 , thereby fixing the inner plate 323 .

[0057] Reference Figure 1-2 A lifting member 8 is provided on the bottom tube 1 and the top tube 2 as well as the top plate 41 and the bottom plate 42, and the lifting member 8 includes a cylinder 81 fixedly connected between the top plate 41 and the bottom plate 42, an axle pin 82 welded to the side wall flange of the top tube 2, a pin hole 83 opened on the outer frame 321 and the side wall flange of the bottom tube 1, and the axle pin 82 is slidably connected to the inner wall of the pin hole 83.

[0058] When the cylinder 81 pushes the top plate 41 upward, the bottom tube 1 and the top tube 2 are controlled to separate from one of the outer frames 321 , and the shaft pin 82 is disengaged from the pin hole 83 , so that the outer frame 321 will not be blocked when rotating.

[0059] Reference Figure 1 The top outer wall of the top pipe 2 is fixedly connected with a top cover 10 through a flange, and an alarm 11 is installed on the outer wall of the top cover 10, and a pressure gauge 12 is installed on the pipe at the top of the top cover 10.

[0060] The barometer 12 is used to monitor the air pressure inside the pipe on the top of the top cover 10 in real time. When the air pressure is lower than the normal value, the filter plate 325 needs to be cleaned. When the air pressure is too low, the filter plate 325 needs to be replaced in time.

[0061] Working principle: the bottom pipe 1 and top pipe 2 in the device are a part of the filtering device, wherein the ends of the bottom pipe 1 and the top pipe 2 that are away from each other are fixed in a flexible connection manner, and the air pressure inside the pipe on the top of the top cover 10 is monitored by the barometer 12. When the air pressure is lower than the normal value, the servo motor 431 drives the limit pipe 432 to rotate and control the nozzle 434 to rotate, and then the nozzle at the bottom of the nozzle 434 can blow air downward to the filter screen 325. In this process, the up and down movement of the internal threaded tube 444 can control the long rod 451 to drive the exciting block 454 to continuously hit the filter screen 325 back and forth, so that the top and bottom of the filter screen 325 can be cleaned at the same time;

[0062] When the air pressure is too low and the filter screen 325 needs to be replaced, first, the top plate 41 is pushed upward by the cylinder 81 to control the bottom tube 1 and the top tube 2 to separate from one of the outer frames 321, and then the new filter screen 325 is placed in the inner plate 323, and then the steering wheel 315 is controlled to turn by rotating the handle 317, the old filter screen 325 is taken out, and a clean filter screen 325 is put in.

[0063] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0064] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0065] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An air filter device for metal powder processing, comprising a bottom tube (1), characterized in that: The top outer wall of the bottom tube (1) is provided with a top tube (2), the top outer wall of the bottom tube (1) is provided with a top tube (2), and a filter plate replacement mechanism (3) for facilitating the replacement of filter plates and a filter plate cleaning mechanism (4) for increasing the service life of the filter plates are provided on the bottom tube (1) and the top tube (2), wherein the filter plate replacement mechanism (3) and the filter plate cleaning mechanism (4) each comprise two parts, one part being located inside the bottom tube (1) and the top tube (2), and the other part being located outside the bottom tube (1) and the top tube (2); The filter plate replacement mechanism (3) is composed of a conversion assembly (31) and a filter assembly (32), wherein the conversion assembly (31) is arranged on one side of the bottom pipe (1), and the filter assembly (32) is installed on the outer wall of the conversion assembly (31), wherein the filter assembly (32) includes two, which are respectively located on both sides of the conversion assembly (31); The filter plate cleaning mechanism (4) is composed of a top plate (41), a bottom plate (42), an upper cleaning assembly (43), a lifting assembly (44), a lower vibration assembly (45) and a sealing assembly (46), wherein the top plate (41) and the bottom plate (42) are respectively welded to the outer walls of the top tube (2) and the bottom tube (1), the upper cleaning assembly (43) is mounted on the outer wall of the top plate (41), the lower vibration assembly (45) is mounted on the outer wall of the bottom plate (42), the lifting assembly (44) is arranged between the upper cleaning assembly (43) and the lower vibration assembly (45), and the sealing assembly (46) is arranged on the inner wall of the bottom tube (1).

2. The air filter device for metal powder processing according to claim 1, characterized in that: The conversion assembly (31) is composed of a connecting column (311), a fixing seat (312), a groove (313), a center column (314), a steering wheel (315), an elastic member (316), a turning handle (317) and a connecting frame (318), wherein the connecting column (311) is welded to an outer wall of one side of the bottom tube (1), the fixing seat (312) is welded to an outer wall of one end of the connecting column (311), and the groove (313) includes two grooves, which are respectively opened in the inner circle of the fixing seat (312) and the inner circle of the fixing seat (312). On both sides, the center column (314) is rotatably connected to the inner wall of the fixing seat (312), the steering wheel (315) is installed at the bottom of the outer wall of the center column (314), the elastic member (316) includes two, which are respectively installed on the inner walls of both sides of the steering wheel (315), and one end of the elastic member (316) is embedded in the inside of the groove (313), the turning handle (317) is welded to the top outer wall of the center column (314), and the connecting frame (318) is welded to the top of the outer wall of the center column (314); A positioning hole (9) is provided at the center of the outer wall at the bottom of the fixing seat (312), and the center column (314) is rotatably connected to the inner wall of the positioning hole (9).

3. The air filter device for metal powder processing according to claim 1, characterized in that: The filter assembly (32) comprises an outer frame (321) fixedly connected to the outer walls on both sides of the connecting frame (318), a second elastic member (322) symmetrically installed on the inner wall of the outer frame (321), an inner plate (323) slidably connected to the inner wall of the outer frame (321), and a symmetrically installed positioning groove (324) on the side wall of the inner plate (323), wherein one end of the second elastic member (322) is embedded in the inner wall of the positioning groove (324), and the filter screen plate (325) is installed on the inner wall of the inner plate (323).

4. The air filter device for metal powder processing according to claim 1, characterized in that: The upper cleaning assembly (43) is composed of a servo motor (431), a limiting tube (432), a limiting plate (433), a nozzle (434), a pulley pair (435) and an air pipe (436), wherein the servo motor (431) is fixedly connected to the top outer wall of the top plate (41) by means of screws, the limiting tube (432) is fixedly connected to the output shaft of the servo motor (431) by means of a coupling, the limiting plate (433) is welded to the inner wall of one side of the top pipe (2), the nozzle (434) is rotatably connected to the inner wall of one end of the limiting plate (433), and nozzles equidistantly distributed are arranged at the bottom of the nozzle (434), the pulley pair (435) is installed between the nozzle (434) and the limiting tube (432), and the air pipe (436) runs through the interior of the top pipe (2) and is rotatably connected to the outer wall of one end of the nozzle (434).

5. The air filter device for metal powder processing according to claim 1, characterized in that: The lifting assembly (44) comprises a limiting rod (441) slidably connected to the inner wall of the limiting tube (432), a reciprocating screw rod (442) welded to the outer wall of the bottom of the limiting rod (441), an angle plate (443) welded to the inner wall of the top plate (41) and rotatably connected to the outer wall of the reciprocating screw rod (442), an internal threaded tube (444) screwed to the outer wall of the reciprocating screw rod (442), and a rectangular block (445) welded to the outer wall of the bottom of the internal threaded tube (444), and the rectangular block (445) is slidably connected to the inner wall of the bottom plate (42).

6. The air filter device for metal powder processing according to claim 1, characterized in that: The lower excitation component (45) includes a long rod (451) welded to the outer wall of the internally threaded tube (444), a connecting seat (452) welded to the outer wall of one end of the long rod (451), and an internally threaded sleeve (453) welded to the inner wall of the connecting seat (452), wherein the internally threaded sleeve (453) includes four, all of which are welded to the end of the connecting seat (452), and the excitation block (454) is screwed to the inner wall of the internally threaded sleeve (453).

7. The air filter device for metal powder processing according to claim 1, characterized in that: The sealing assembly (46) comprises a sealing plate (461) welded to the outer wall of the long rod (451), an arc-shaped groove (462) provided on the inner wall of the other side of the bottom tube (1), and the sealing plate (461) is slidably connected to the inner wall of the arc-shaped groove (462), and a strip groove (463) is provided on the outer wall of the other side of the bottom tube (1), and the strip groove (463) runs through the interior of the arc-shaped groove (462).

8. The air filter device for metal powder processing according to claim 1, characterized in that: The second elastic member (322) comprises a card frame (5), a guide column (6) welded to the inner wall of the card frame (5), and a spring (7) fixedly connected between the card frame (5) and the outer frame (321).

9. The air filter device for metal powder processing according to claim 1, characterized in that: The bottom tube (1) and the top tube (2) as well as the top plate (41) and the bottom plate (42) are provided with a lifting member (8), and the lifting member (8) comprises a cylinder (81) fixedly connected between the top plate (41) and the bottom plate (42), an axle pin (82) welded to the side wall flange of the top tube (2), and a pin hole (83) provided on the outer frame (321) and the side wall flange of the bottom tube (1), and the axle pin (82) is slidably connected to the inner wall of the pin hole (83).

10. The air filter device for metal powder processing according to claim 1, characterized in that: The top outer wall of the top pipe (2) is fixedly connected to a top cover (10) via a flange, an alarm (11) is installed on the outer wall of the top cover (10), and a pressure gauge (12) is installed on the pipeline at the top of the top cover (10).

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