CN116174294A - High-efficient screening plant of 3D metal powder production with automatic clear stifled function - Google Patents

Abstract

The invention discloses a 3D metal powder production high-efficiency screening device with an automatic blockage removing function, which comprises a box body, wherein the top end of the box body is provided with a feeding mechanism, the lower end of the feeding mechanism is also provided with a shaking mechanism, and the left side of the box body is provided with a self-cleaning mechanism; the feed mechanism includes: the device comprises a feeding cavity, a plurality of transmission gears, a plurality of rotating parts, a plurality of swinging plates, toothed plates and hydraulic push rods; the invention has the beneficial effects that the device relates to the technical field of screening of metal powder, and the device drives the rolling brush to clean residual metal powder on the screening grid through the scraping plate, and simultaneously has the autorotation effect on the rolling brush, so that bristles of the rolling brush are inserted into screening holes of the screening grid, and further a better cleaning effect is achieved.

Description

High-efficient screening plant of 3D metal powder production with automatic clear stifled function

Technical Field

The invention relates to the technical field of screening of metal powder, in particular to a 3D metal powder production efficient screening device with an automatic blockage cleaning function.

Background

The metal powder refers to a group of metal particles having a size of less than 1 mm. Including single metal powders, alloy powders, and certain refractory compound powders having metallic properties, are the primary raw materials for powder metallurgy.

When aiming at metal powder production, screening operation is needed, however, application number CN202011611739.8 discloses an automatic frequency modulation 3D printing metal powder vibrating screen powder machine, which belongs to the technical field of D printing and comprises a bottom plate and a screening box, wherein a conveying cavity, a screening cavity II and a screening cavity I are sequentially arranged in the screening box from left to right, a plurality of screening frames are sequentially arranged in the screening cavity II and the screening cavity I from top to bottom respectively, the left end of a conveying plate is communicated with the conveying cavity, and powder can sequentially pass through the screening frames in the screening cavity I through the conveying cavity, then is conveyed to the screening frames in the screening cavity II through the conveying cavity, and then is continuously screened, so that the screening precision can be improved, the device can be avoided from being too high, and the operation is convenient; the screening box is moved left and right to screen, and the striking ball is driven to collide with the fixed block, so that the screening box can be further driven to vibrate, the screening speed can be increased through vibration of the screening box, and the working efficiency can be improved;

above-mentioned device adopts the guide cylinder to drive screening case reciprocating motion's mode at in-service use for screening frame begins reciprocating motion, and then realizes the screening effect to the powder, but when using, to the screening frame, this mode is because the density of metal powder self is easy to bond at the surface of screening frame, leads to screening effect relatively poor, and the screening frame can't realize self-cleaning's function simultaneously, after using the shorter time to the metal powder, needs the staff to open the observation window to dismantle the screening frame through external tool, just can accomplish the clearance operation to the screening frame, and simultaneously when screening, to the remaining metal powder in the sieve mesh gap, the clearance is comparatively hard, because of this, research in depth to above-mentioned problem, has the case to produce.

Disclosure of Invention

The invention aims to solve the problems, designs a 3D metal powder production high-efficiency screening device with an automatic blockage removing function, and solves the existing XX.

The technical scheme of the invention for achieving the purpose is as follows: the 3D metal powder production efficient screening device with the automatic blockage removing function comprises a box body, wherein a feeding mechanism is arranged at the top end of the box body, a shaking mechanism is further arranged at the lower end of the feeding mechanism, and a self-cleaning mechanism is arranged at the left side of the box body;

the feed mechanism includes: the device comprises a feeding cavity, a plurality of transmission gears, a plurality of rotating parts, a plurality of swinging plates, toothed plates and hydraulic push rods;

the feeding cavity is arranged at the top end of the box body, the transmission gears are respectively rotatably arranged in the cavity of the side wall of the feeding cavity, the transmission gears are mutually meshed, the rotating parts are respectively arranged on the transmission gears, the swinging plates are respectively arranged on the outer sides of the outer walls of the rotating parts, the hydraulic push rods are arranged in the cavity of the side wall of the feeding cavity, and the top ends of the toothed plates are connected with the telescopic ends of the hydraulic push rods and are mutually meshed with one transmission gear.

Preferably, the shaking mechanism comprises: the device comprises a separation cavity, a partition plate, two driving parts, two turntables, two spherical seats, two fans and a screening grid;

the separation chamber is arranged at the bottom end of the feeding chamber, the partition plate is arranged in the separation wall, the two driving parts are respectively embedded in the separation chamber, the two turntables are respectively arranged at the driving ends of the two driving parts, the two spherical seats are respectively rotatably arranged on the partition plate, the other end of the spherical seats is eccentrically arranged on the two spherical seats, the two fans are respectively arranged on the two spherical seats, and the screening grid is arranged in the box and positioned at the front side of the air outlet end of the fans.

Preferably, the self-cleaning mechanism comprises: the device comprises a double-shaft cleaning driver, two driving gears, two driven gears, two scraping plates and a cleaning structure;

the double-shaft cleaning driver is arranged at the top end of the box body, the driving gear is arranged at the driving end of the double-shaft cleaning driver, the driven gears are respectively rotatably arranged on the wall surface of the top end of the box body, the driven gears are meshed with each other, the top ends of the scraping plates are respectively arranged on the driving gears, and the cleaning structure is arranged on the scraping plates.

Preferably, the cleaning structure includes: a plurality of springs, a plurality of plugboards and two rolling brushes;

the springs are respectively arranged on the two scraping plates, the inserting plates are respectively movably inserted on the two scraping plates, and two ends of the two rolling brushes are respectively rotatably arranged on the inserting plates.

Preferably, the bottom ends of the two scraping plates are provided with limiting structures;

the limit structure comprises: a limit rail and two movable rollers;

the limiting rail is arranged in the box body, the two movable rollers are respectively arranged at the bottom ends of the two scraping plates, and the outer edge parts of the two movable rollers are tightly attached to the limiting rail.

Preferably, the cleaning structure includes: the device comprises a driving bevel gear, a threaded rod, a driven bevel gear, two limiting guide rods and a U-shaped cleaning plate;

the driving bevel gear is arranged at the driving end of the double-shaft cleaning driver, the threaded rod is rotatably arranged in the box body, the driven bevel gear is arranged at the top end of the threaded rod and meshed with the driving bevel gear, the two limiting guide rods are respectively arranged in the box body, the middle part of the U-shaped cleaning plate is in threaded connection with the outer side of the outer wall of the threaded rod, and the two ends of the U-shaped cleaning plate can be sleeved on the outer sides of the outer walls of the two limiting guide rods in a vertically movable mode.

Preferably, the U-shaped cleaning plate is provided with an inclined plane.

Preferably, a dredging component is further arranged at the bottom end of the U-shaped cleaning plate;

the dredging assembly comprises: a sleeve and an annular brush;

the sleeve sets up in the bottom of U-shaped clearance board, the annular brush equidistance respectively sets up in telescopic inside, and contacts with the threaded rod.

Preferably, the bottom of box is provided with the drawer, a plurality of shell fragment is installed on the top of drawer, and a plurality of fixture block is installed respectively on the shell fragment, and a plurality of the fixture block joint has the filter, the both ends of filter are provided with the buckle hand groove.

Preferably, a uniform conveying structure is arranged at the bottom of the feeding cavity;

the uniform delivery structure includes: a rotating motor, two rotating parts and a plurality of baffle plates;

the rotating motor is arranged at one end of the feeding cavity, two rotating pieces are rotatably arranged in the feeding cavity, one rotating piece is connected with the driving end of the rotating motor, and a plurality of baffle plates are respectively arranged at the outer sides of the outer walls of the two rotating pieces.

The 3D metal powder production high-efficiency screening device with the automatic blockage clearing function, which is manufactured by utilizing the technical scheme of the invention, has the following beneficial effects;

1. the metal powder is screened by wind power generated by the fan, compared with a screening device in a comparison document, the device is more novel in structure, meanwhile, the metal powder is prevented from being fully accumulated at the middle part of the screening frame through orderly blanking of the feeding structure, the screening efficiency is improved, and meanwhile, a better screening effect is achieved;

2. the device drives the rolling brush to start to move through the scraping plate, the rolling brush pushes residual metal powder on the screening grid, so that the residual metal powder on the screening grid is cleaned, meanwhile, in the moving process of the rolling brush, the effect of autorotation can be achieved, bristles of the rolling brush are inserted into screening holes of the screening grid, and therefore a better cleaning effect is achieved, meanwhile, the inserting plate is always supported under the supporting force of the spring, the bristles of the rolling brush are further inserted into through holes of the screening grid, the situation that the metal powder is residual on the screening grid is effectively prevented, and the cleaning effect on the screening grid is facilitated; meanwhile, the U-shaped cleaning plate can be used for treating metal powder adhered to the wall surface of the box body, and the use requirement in actual production can be met.

Drawings

Fig. 1 is a schematic diagram of a front cross-sectional structure of a 3D metal powder production efficient screening device with an automatic blockage removing function.

Fig. 2 is a schematic diagram of a test cross-section structure of a 3D metal powder production high-efficiency screening device with an automatic blockage removal function.

Fig. 3 is a schematic diagram of a three-dimensional structure of a rolling brush of a 3D metal powder production efficient screening device with an automatic blockage removing function.

Fig. 4 is a schematic diagram of a three-dimensional structure of a U-shaped cleaning plate of a 3D metal powder production efficient screening device with an automatic blocking cleaning function.

Fig. 5 is a schematic diagram of a partial enlarged structure of a 3D metal powder production efficient screening device with an automatic blockage removing function according to the present invention.

Fig. 6 is a schematic diagram of a three-dimensional structure of a striker plate of a 3D metal powder production efficient screening device with an automatic blocking clearing function.

Fig. 7 is a schematic diagram of a spherical seat structure of a 3D metal powder production efficient screening device with an automatic blockage removing function.

Fig. 8 is a schematic diagram of a partial enlarged structure of a 3D metal powder production efficient screening device with an automatic blockage removing function.

Fig. 9 is a schematic diagram of a partial enlarged structure of a 3D metal powder production efficient screening device with an automatic blockage removing function.

In the figure: 1. the box body, 2, a feeding chamber, 3, a transmission gear, 4, a rotating part, 5, a swinging plate, 6, a toothed plate, 7, a hydraulic push rod, 8, a separation cavity, 9, a baffle plate, 10, a driving part, 11, an eccentric disc, 12, a spherical seat, 13, a fan, 14, a screening grid, 15, a double-shaft cleaning driver, 16, a driving gear, 17, a driven gear, 18, a scraping plate, 19, a spring, 20, a plugboard, 21, a rolling brush, 22, a limiting track, 23, a moving roller, 24, a driving bevel gear, 25, a threaded rod, 26, a driven bevel gear, 27, a limiting guide rod, 28, a U-shaped cleaning plate, 29, a sleeve, 30, an annular brush, 31, a drawer, 32, a spring plate, 33, a clamping block, 34, a filter plate, 35, a buckling groove, 36, a rotating motor, 37, a rotating part, 38 and a baffle plate.

Detailed Description

The invention is described in detail below with reference to the accompanying drawings, as shown in fig. 1-9, a 3D metal powder production high efficiency screening device with an automatic blockage removal function.

Examples: the utility model provides a high-efficient screening plant of 3D metal powder production with automatic clear stifled function, includes box 1, and the top of box 1 is provided with feed mechanism, and rocking mechanism is still installed to feed mechanism's lower extreme, and self-cleaning mechanism is installed in box 1's left side;

the feed mechanism includes: the feeding device comprises a feeding chamber 2, a plurality of transmission gears 3, a plurality of rotating pieces 4, a plurality of swinging plates 5, toothed plates 6 and hydraulic push rods 7;

the material loading cavity 2 sets up on the top of box 1, and a plurality of drive gear 3 rotationally are arranged in the cavity of material loading cavity 2 lateral wall respectively, and a plurality of drive gear 3 intermesh, a plurality of rotating member 4 are installed respectively on a plurality of drive gear 3, and a plurality of swinging plate 5 are arranged in the outer wall outside of a plurality of rotating member 4 respectively, and hydraulic push rod 7 sets up in the cavity of material loading cavity 2 lateral wall, and the top of pinion rack 6 is connected with the flexible end of hydraulic push rod 7, and with one of them drive gear 3 intermesh.

In the concrete implementation process, it is to be noted that when the device sieves metal powder, at first start the rocking mechanism, then pour metal powder into the inside of material loading cavity 2, then hydraulic push rod 7 begins reciprocating type extension and shrink, drive pinion rack 6 and begin reciprocating motion, because pinion rack 6 meshes with drive gear 3, and then make rotating member 4 begin to rotate, under the rotatory effect of rotating member 4, make swinging plate 5 begin to rotate, prevent because metal powder's density is piled up in material loading cavity 2, the phenomenon that can't fall, in the outlet whereabouts in-process of metal powder from material loading cavity 2 bottom, rocking mechanism's swing blows metal powder to screening net 14 department and then reaches the effect of screening, further improve screening quality.

Preferably, further, the rocking mechanism includes: a compartment 8, a partition 9, two driving members 10, two turntables, two spherical seats 12, two fans 13 and a screening grid 14;

the partition chamber 8 is arranged at the bottom end of the feeding chamber 2, the partition 9 is arranged in the partition wall, the two driving parts 10 are respectively embedded in the partition chamber 8, the two turntables are respectively arranged at the driving ends of the two driving parts 10, the two spherical seats 12 are respectively rotatably arranged on the partition 9, the other end of the two turntables is eccentrically arranged on the two spherical seats 12, the two fans 13 are respectively arranged on the two spherical seats 12, the screening grid 14 is arranged in the box body 1 and is positioned at the front side of the air outlet ends of the two fans 13.

In the specific implementation process, when the metal powder falls from the bottom of the feeding chamber 2, the driving piece 10 inside the separation chamber 8 is started to drive the turntable to start rotating, because the spherical seat 12 is eccentrically connected to the turntable, when the eccentric disc 11 rotates, the spherical seat 12 rotates on the partition plate 9 under the limitation of the shape of the spherical seat 12, so as to realize the shaking of the fan 13, along with the falling of the metal powder, the fan 13 blows the metal powder to the screening grid 14, part of the metal powder can pass through the screening grid 14, the other part of the metal powder cannot pass through the screening grid 14, and under the condition of screening the metal powder for a long time, the screening grid 14 is adhered with the metal powder, and the screening grid 14 and the inside of the box 1 are cleaned by the self-cleaning mechanism.

Preferably, further, the self-cleaning mechanism comprises: a double-shaft cleaning drive 15, two driving gears 16, two driven gears 17, two scrapers 18 and a cleaning structure;

the double-shaft cleaning driver 15 is arranged at the top end of the box body 1, the driving gear 16 is arranged at the driving end of the double-shaft cleaning driver 15, the two driven gears 17 are respectively rotatably arranged on the wall surface at the top end of the box body 1, the two driven gears 17 are meshed with each other, the top ends of the two scraping plates 18 are respectively arranged on the two driving gears 16, and the cleaning structure is arranged on the two scraping plates 18.

In the specific implementation process, it should be noted that when the screening grid 14 and the inside of the box 1 are cleaned, the dual-shaft driving member 10 starts to rotate, and drives the driving gear 16 to start rotating, so that the driven gear starts rotating, and as the two driven gears 17 are meshed with each other, the scraping plates 18 on the two driven gears 17 start rotating with the two driven gears 17 as axes respectively, and in the rotating process, the cleaning assembly moves along with the rotation, so as to further realize the cleaning effect on the screening grid 14.

Preferably, further, the cleaning structure includes: a plurality of springs 19, a plurality of insertion plates 20 and two rolling brushes 21;

the springs 19 are respectively arranged on the two scrapers 18, the plugboards 20 are respectively movably inserted on the two scrapers 18, and two ends of the two rolling brushes 21 are respectively rotatably arranged on the plugboards.

In the specific implementation process, it is to be noted that, in the process of the rotation of the scraper 18, the rolling brush 21 is driven to start to move, the rolling brush 21 pushes the residual metal powder on the screening grid 14, and then the residual metal powder on the screening grid 14 is cleaned, meanwhile, in the process of the movement of the rolling brush 21, the self-rotation effect can be achieved, the bristles of the rolling brush 21 are inserted into the screening holes of the screening grid 14, and then the better cleaning effect is achieved, meanwhile, the inserting plate 20 is always supported under the supporting force of the spring 19, so that the bristles of the rolling brush 21 are more deeply inserted into the through holes of the screening grid 14, and the situation that the metal powder remains on the screening grid 14 is effectively prevented.

Preferably, further, the bottom ends of the two scrapers 18 are provided with limiting structures;

the limit structure comprises: a limit rail 22 and two moving rollers 23;

the limiting rail 22 is arranged in the box body 1, two movable rollers 23 are respectively arranged at the bottom ends of the two scraping plates 18, and the outer edge parts of the two movable rollers 23 are tightly attached to the limiting rail 22.

In the specific implementation process, it should be noted that, when the scraper 18 rotates, the limiting rail 22 plays a role in limiting and guiding the scraper 18, and meanwhile, the moving roller 23 disposed at the bottom end of the scraper 18 starts to move at the limiting rail 22, so that the rotation of the scraper 18 is smoother.

Preferably, further, the cleaning structure includes: a drive bevel gear 24, a threaded rod 25, a driven bevel gear 26, two limit guide rods 27 and a U-shaped cleaning plate 28;

the driving bevel gear 24 is arranged at the driving end of the double-shaft cleaning driver 15, the threaded rod 25 is rotatably arranged in the box body 1, the driven bevel gear 26 is arranged at the top end of the threaded rod 25 and is meshed with the driving bevel gear 24, the two limiting guide rods 27 are respectively arranged in the box body 1, the middle part of the U-shaped cleaning plate 28 is in threaded connection with the outer side of the outer wall of the threaded rod 25, and the two ends of the U-shaped cleaning plate can be sleeved on the outer sides of the outer walls of the two limiting guide rods 27 in a vertically movable mode.

In the specific implementation process, it should be noted that, in the process of moving the driving scraper 18, the double-shaft cleaning driver 15 drives the driving bevel gear 24 to start rotating, and because the driving bevel gear 24 and the driven bevel gear 26 start rotating, the threaded rod 25 starts rotating, under the limitation of the threads of the threaded rod 25, the U-shaped cleaning plate 28 is driven to start moving up and down on the threaded rod 25, and the limiting guide rod 27 performs the guiding and limiting function on the U-shaped cleaning plate 28.

Preferably, the U-shaped cleaning plate 28 is beveled.

In a specific implementation process, the lower surface of the U-shaped cleaning plate 28 is provided to facilitate scraping of the metal powder adhered to the wall surface of the box body 1.

Preferably, further, the bottom end of the U-shaped cleaning plate 28 is also provided with a dredging assembly;

the mediation subassembly includes: a sleeve 29 and an annular brush 30;

the sleeve 29 is arranged at the bottom end of the U-shaped cleaning plate 28, and the annular brushes 30 are respectively equidistantly arranged inside the sleeve 29 and are in contact with the threaded rod 25.

In the specific implementation process, during the moving process of the U-shaped cleaning plate 28, the sleeve 29 is driven to start moving, and during the moving process, the annular brush 30 cleans the thread of the threaded rod 25, so as to prevent the moving obstacle of the U-shaped cleaning plate 28.

Preferably, further, the bottom of the box 1 is provided with a drawer 31, the top of the drawer 31 is provided with a plurality of elastic sheets 32, a plurality of clamping blocks 33 are respectively installed on the plurality of elastic sheets 32, the plurality of clamping blocks 33 are clamped with a filter plate 34, and both ends of the filter plate 34 are provided with buckling grooves 35.

In the specific implementation process, it should be noted that the metal powder which is not cleaned by the sieving grid 14 and the rolling brush 21 falls on the filter plate 34 for secondary sieving, part of the metal powder falls inside the drawer 31, the other part of the metal powder remains on the filter plate 34, then the worker pulls the drawer 31, the filter plate 34 can be pulled upwards through the handle groove 35 on the filter plate 34, and under the extrusion action of the edge of the filter plate 34, the clamping block 33 contracts under the action of the spring 19, so that the filter plate 34 is detached.

Preferably, even conveying structures are arranged at the bottom of the feeding chamber 2;

the uniform conveying structure comprises: a rotary motor 36, two rotary members 37, and a plurality of striker plates 38;

the rotating electrical machine 36 is disposed at one end of the feeding chamber 2, two rotating members 37 are rotatably mounted in the feeding chamber 2, one of the rotating members 37 is connected with the driving end of the rotating electrical machine 36, and a plurality of baffle plates 38 are respectively disposed outside the outer walls of the two rotating members 37.

In the specific implementation process, it should be noted that, in the process of the metal powder falling from the interior of the feeding chamber 2, the rotating motor 36 starts to rotate, and then drives the rotating member 37 to start rotating, so that the material between the baffle plates 38 starts to fall orderly.

The above technical solution only represents the preferred technical solution of the present invention, and some changes that may be made by those skilled in the art to some parts of the technical solution represent the principles of the present invention, and the technical solution falls within the scope of the present invention.

Claims (10)

1. The 3D metal powder production efficient screening device with the automatic blockage removing function comprises a box body and is characterized in that a feeding mechanism is arranged at the top end of the box body, a shaking mechanism is further arranged at the lower end of the feeding mechanism, and a self-cleaning mechanism is arranged at the left side of the box body;

the feed mechanism includes: the device comprises a feeding cavity, a plurality of transmission gears, a plurality of rotating parts, a plurality of swinging plates, toothed plates and hydraulic push rods;

the feeding cavity is arranged at the top end of the box body, the transmission gears are respectively rotatably arranged in the cavity of the side wall of the feeding cavity, the transmission gears are mutually meshed, the rotating parts are respectively arranged on the transmission gears, the swinging plates are respectively arranged on the outer sides of the outer walls of the rotating parts, the hydraulic push rods are arranged in the cavity of the side wall of the feeding cavity, and the top ends of the toothed plates are connected with the telescopic ends of the hydraulic push rods and are mutually meshed with one transmission gear.

2. The 3D metal powder production efficient screening device with an automatic blockage removal function according to claim 1, wherein the shaking mechanism comprises: the device comprises a separation cavity, a partition plate, two driving parts, two turntables, two spherical seats, two fans and a screening grid;

the separation chamber is arranged at the bottom end of the feeding chamber, the partition plate is arranged in the separation wall, the two driving parts are respectively embedded in the separation chamber, the two turntables are respectively arranged at the driving ends of the two driving parts, the two spherical seats are respectively rotatably arranged on the partition plate, the other end of the spherical seats is eccentrically arranged on the two spherical seats, the two fans are respectively arranged on the two spherical seats, and the screening grid is arranged in the box and positioned at the front side of the air outlet end of the fans.

3. The 3D metal powder production efficient screening device with an automatic blockage removal function according to claim 1, wherein the self-cleaning mechanism comprises: the device comprises a double-shaft cleaning driver, two driving gears, two driven gears, two scraping plates and a cleaning structure;

the double-shaft cleaning driver is arranged at the top end of the box body, the driving gear is arranged at the driving end of the double-shaft cleaning driver, the driven gears are respectively rotatably arranged on the wall surface of the top end of the box body, the driven gears are meshed with each other, the top ends of the scraping plates are respectively arranged on the driving gears, and the cleaning structure is arranged on the scraping plates.

4. A 3D metal powder production high efficiency screening device with automatic blockage removal function according to claim 3, wherein the cleaning structure comprises: a plurality of springs, a plurality of plugboards and two rolling brushes;

the springs are respectively arranged on the two scraping plates, the inserting plates are respectively movably inserted on the two scraping plates, and two ends of the two rolling brushes are respectively rotatably arranged on the inserting plates.

5. The 3D metal powder production high-efficiency screening device with the automatic blockage removing function according to claim 3, wherein limiting structures are arranged at the bottom ends of the two scraping plates;

the limit structure comprises: a limit rail and two movable rollers;

the limiting rail is arranged in the box body, the two movable rollers are respectively arranged at the bottom ends of the two scraping plates, and the outer edge parts of the two movable rollers are tightly attached to the limiting rail.

6. A 3D metal powder production high efficiency screening device with automatic blockage removal function according to claim 3, wherein the cleaning structure comprises: the device comprises a driving bevel gear, a threaded rod, a driven bevel gear, two limiting guide rods and a U-shaped cleaning plate;

the driving bevel gear is arranged at the driving end of the double-shaft cleaning driver, the threaded rod is rotatably arranged in the box body, the driven bevel gear is arranged at the top end of the threaded rod and meshed with the driving bevel gear, the two limiting guide rods are respectively arranged in the box body, the middle part of the U-shaped cleaning plate is in threaded connection with the outer side of the outer wall of the threaded rod, and the two ends of the U-shaped cleaning plate can be sleeved on the outer sides of the outer walls of the two limiting guide rods in a vertically movable mode.

7. The 3D metal powder production high-efficiency screening device with an automatic blockage removing function according to claim 6, wherein the U-shaped cleaning plate is provided with an inclined plane.

8. The 3D metal powder production high-efficiency screening device with the automatic blockage removing function according to claim 7, wherein a dredging assembly is further arranged at the bottom end of the U-shaped cleaning plate;

the dredging assembly comprises: a sleeve and an annular brush;

the sleeve sets up in the bottom of U-shaped clearance board, the annular brush equidistance respectively sets up in telescopic inside, and contacts with the threaded rod.

9. The efficient 3D metal powder production screening device with automatic blockage removal function according to claim 1, wherein a drawer is arranged at the bottom end of the box body, a plurality of elastic sheets are arranged at the top end of the drawer, a plurality of clamping blocks are respectively arranged on the elastic sheets, the clamping blocks are clamped with filter plates, and buckling grooves are formed in the two ends of the filter plates.

10. The 3D metal powder production high-efficiency screening device with the automatic blockage removal function according to claim 1, wherein a uniform conveying structure is arranged at the bottom of the feeding chamber;

the uniform delivery structure includes: a rotating motor, two rotating parts and a plurality of baffle plates;

the rotating motor is arranged at one end of the feeding cavity, two rotating pieces are rotatably arranged in the feeding cavity, one rotating piece is connected with the driving end of the rotating motor, and a plurality of baffle plates are respectively arranged at the outer sides of the outer walls of the two rotating pieces.

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