CN214487720U

CN214487720U - Powder screening machine of vibration material disk

Info

Publication number: CN214487720U
Application number: CN202120422851.0U
Authority: CN
Inventors: 王长春
Original assignee: Sichuan Weijia Additive Manufacturing Technology Co ltd
Current assignee: Sichuan Weijia Additive Manufacturing Technology Co ltd
Priority date: 2021-02-26
Filing date: 2021-02-26
Publication date: 2021-10-26
Anticipated expiration: 2031-02-26

Abstract

The utility model provides a powder screening machine of vibration material disk, screen cloth and spiral feed mechanism including screening barrel, screening barrel internal rotation setting, spiral feed mechanism feed hopper, be equipped with in the feed hopper and prevent stifled subassembly, prevent stifled subassembly including setting up the lifter in feed hopper and be a plurality of dispersion poles that the scattering is connected along the lifter, the lifter reciprocates along vertical direction through the drive assembly drive, drives a plurality of dispersion poles and reciprocates and is used for preventing that the material from piling up. The utility model discloses an avoid feed hopper's jam, set up the anti-blocking assembly that corresponds, prevent that the stifled subassembly includes a plurality of dispersion poles that are the scattering distribution on lifter and the lifter, a plurality of dispersion poles constitute the structure that roughly is the umbrella skeleton with the lifter, and the lifter can reciprocate under drive assembly's effect again, and then drives a plurality of dispersion poles up-and-down motion, and the lifter can be used for eliminating the crane span structure phenomenon of powder material in feed hopper with the elevating action of a plurality of dispersion poles.

Description

Powder screening machine of vibration material disk

Technical Field

The utility model relates to a powder screening machine technical field, in particular to powder screening machine of vibration material disk.

Background

The additive manufacturing technology is an emerging manufacturing technology. The technology is based on the principle of discrete material layer-by-layer stacking forming, and a product prototype or a part is stacked layer-by-layer through materials according to a three-dimensional CAD model of a product.

In order to ensure the balance of additive powder, the additive powder is screened out to screen out impurities in the powder before additive manufacturing.

Screening machine among the prior art is including the screening section of thick bamboo that is equipped with the screen tray and the spiral material feeding unit who is connected with the screening section of thick bamboo, and spiral material feeding unit's setting is mainly in order to reduce the raise dust of screening in-process, ensures that the production environment is favorable to operating personnel's health more. However, as the additive powder is a powdery material with smaller particles, a bridge phenomenon is easy to occur when the additive powder is introduced into the feeding funnel of the spiral feeding assembly, so that the feeding funnel is blocked, the feeding effect of the spiral feeding assembly is further influenced, and the screening efficiency of the screening machine is reduced.

SUMMERY OF THE UTILITY MODEL

Not enough to exist among the prior art, the utility model provides a powder screening machine of vibration material disk has solved among the prior art problem that the easy jam of feed hopper that sets up of the spiral feeding mechanism who sets up on the screening machine.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a powder screening machine for additive manufacturing comprises a screening cylinder, a screen and a spiral feeding mechanism, wherein the screen and the spiral feeding mechanism are rotatably arranged in the screening cylinder, the spiral feeding mechanism comprises a feeding channel communicated with the screening cylinder, a spiral conveying assembly and a feeding hopper, the spiral conveying assembly is arranged in the feeding channel and used for feeding, the feeding hopper is connected with the feeding channel, an anti-blocking assembly is arranged in the feeding hopper,

prevent stifled subassembly including setting up the lifter in feed hopper and being a plurality of dispersion poles that the scattering is connected along the lifter, the lifter reciprocates along vertical direction through the drive assembly drive, drives a plurality of dispersion poles and reciprocates and is used for preventing that the material from piling up.

Compared with the prior art, the utility model discloses following beneficial effect has: the utility model discloses a avoid feed hopper's jam, set up the corresponding anti-blocking subassembly, anti-blocking subassembly includes a plurality of dispersion poles that are the scattering distribution on lifter and the lifter, a plurality of dispersion poles and lifter constitute and roughly are the structure of umbrella skeleton, and the lifter can reciprocate under the effect of drive assembly again, and then drive a plurality of dispersion poles up and down movement, the lifting action of lifter and a plurality of dispersion poles can be used for eliminating the crane span structure phenomenon of powder material in feed hopper, avoid powder material to pile up in the feed hopper and block up feed hopper, and influence the whole screening efficiency of screening machine; and the lifter does not rotate the setting, but goes up and down to set up, can also reduce the more serious problem of raise dust that the lifter rotated and brought like this (under the circumstances that the lifter rotated the setting, arouse the raise dust that the air flow and then aroused the powder material more easily).

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of a part of the structure of the mounting base of the present invention.

In the figure: 1. a lifting rod; 2. a dispersion rod; 3. a feed channel; 4. a feeding blade; 5. a feed shaft; 6. a material guide chute; 7. screening the cylinder body; 8. a discharge pipe; 9. screening a screen; 10. a rotating shaft; 11. rotating the motor; 12. a discharge shaft; 13. a discharge blade; 14. a discharge opening; 15. a second transmission wheel; 16. a second drive belt; 17. a discharge duct; 18. a connecting shaft; 19. a brush layer; 20. a brush bar; 21. a first drive pulley; 22. a first drive belt; 23. a crank; 24. a conveying motor; 25. a connecting rod; 26. a mounting seat; 27. mounting a rod; 28. a spring telescopic rod; 29. a cross bar; 261. a slide rail; 262. and installing the through hole.

Detailed Description

The technical solution of the present invention will be further explained with reference to the accompanying drawings and embodiments.

As shown in fig. 1, the embodiment of the utility model provides a powder screening machine of additive manufacturing, including screen cloth 9 and the spiral feed mechanism that screening barrel 7, screening barrel 7 internal rotation set up.

As shown in fig. 1, the screw feeding mechanism includes a feeding channel 3, a screw conveying assembly and a feeding hopper connected with the feeding channel 3. The feeding channel 3 is horizontally arranged at the outer top of the screening cylinder 7 and is fixedly connected with the outer top of the screening cylinder 7, one end of the feeding channel 3 close to the screening cylinder 7 is provided with a material guide port, the material guide port is provided with a material guide groove 6 which is connected, the material guide groove 6 penetrates through the top of the screening cylinder 7, and the discharge end of the material guide groove 6 is positioned right above the screen 9; a feed inlet is arranged at one end of the feed channel 3 far away from the screening cylinder 7 and is connected with a feed hopper; in order to carry the material of deriving the feed inlet to the guide mouth for being convenient for, the utility model discloses set up the spiral delivery module in feedstock channel 3, it is concrete, the spiral delivery module includes feeding shaft 5 along 3 length direction settings of feedstock channel, along feeding blade 4 and the conveying motor 24 of setting outside feedstock channel 3 that 5 spiral winding of feeding shaft set up, feeding shaft 5 rotates with feedstock channel 3 to be connected and one end runs through feedstock channel 3 and is connected with conveying motor 24. The conveying motor 24 works to drive the feeding shaft 5 and the feeding blades 4 to rotate, materials guided by the feeding hopper are conveyed to the material guide opening, and then the materials enter the screen 9 to be screened and purified.

As shown in figure 1, because the utility model discloses the screening machine mainly used screening powder material that sets up, powder material takes place the crane span structure phenomenon easily in getting into feed hopper, causes feed hopper's jam, for avoiding this problem, the utility model discloses be equipped with in the feed hopper and prevent stifled subassembly, prevent stifled subassembly including setting up lifter 1 in feed hopper and along a plurality of dispersion poles 2 that lifter 1 is the scattering connection, lifter 1 reciprocates along vertical direction through the drive assembly drive, drives a plurality of dispersion poles 2 and reciprocates and is used for preventing that the material from piling up. The utility model discloses a avoid feed hopper's jam, set up the corresponding anti-blocking subassembly, anti-blocking subassembly includes lifter 1 and a plurality of dispersion poles 2 that are the scattering distribution on the lifter 1, a plurality of dispersion poles 2 and a lifter 1 constitute and roughly are the structure of umbrella skeleton, and lifter 1 can reciprocate under the effect of drive assembly, and then drive a plurality of dispersion poles 2 up-and-down motion, lifter 1 and a plurality of dispersion poles 2's elevating action can be used for eliminating the crane span structure phenomenon of powder material in feed hopper, avoid powder material to pile up in the feed hopper and block up feed hopper, and influence the whole screening efficiency of screening machine; and lifter 1 does not rotate the setting, but goes up and down the setting, can also reduce the more serious problem of raise dust that lifter 1 rotated and brought like this (under the condition that lifter 1 rotated the setting, arouse the air flow more easily and then arouse the raise dust of powder material).

As shown in fig. 1, the driving assembly is for driving the lifting rod 1 to move up and down, and since the screw conveying assembly is provided with the conveying motor 24, in order to effectively utilize the power, the driving assembly of the present invention comprises a crank 23 arranged on the feeding shaft 5, a connecting rod 25 hinged with the crank 23, and an installation rod 27 hinged with the connecting rod 25, wherein the installation rod 27 is connected with the lifting rod 1 through a cross rod 29; the installation rod 27 is connected with the fixed vertical sliding of the installation seat 26 of the outer wall of the feeding funnel, as shown in fig. 2, an installation through hole 262 is vertically arranged on the installation seat 26, a slide rail 261 which is convexly arranged is arranged on the inner wall of the installation through hole 262, the installation rod 27 penetrates through the installation through hole 262, and a slide groove which is matched with the slide rail 261 for use is arranged on the outer wall of the installation rod 27, so that the installation rod 27 is connected with the installation seat 26 in a vertical sliding mode. The cross rod 29 is connected with the mounting seat 26 fixed on the outer wall of the feeding hopper through a vertically arranged spring telescopic rod 28, and the spring telescopic rod 28 can be more beneficial to the up-and-down movement of the lifting rod 1. Conveying motor 24 rotates and drives pay-off axle 5 and crank 23 and rotate, and crank 23 rotates and drives installation pole 27 and slide from top to bottom on mount pad 26 under the effect of connecting rod 25, and at the effect of horizontal pole 29, installation pole 27 reciprocates and drives lifter 1 and reciprocate, and the physics that the driven dispersion pole 2 moved up and down in to feed hopper is stirred, prevents the crane span structure phenomenon in the feed hopper, avoids feed hopper to block up the problem that reduces screening machine work efficiency.

As shown in fig. 1, the screen 9 is horizontally arranged in the screening cylinder 7 and is connected with a vertically arranged rotating shaft 10, the rotating shaft 10 is rotatably connected with the screening cylinder 7, and the lower end of the rotating shaft 10 penetrates through the screening cylinder 7 and is connected with a rotating motor 11; in order to facilitate the rotation of the screen 9, the screen 9 arranged in the utility model is circular, so that the circumference side wall of the screen 9 arranged in the utility model is smoothly contacted with the inner wall of the screening cylinder 7 for facilitating the sliding and small gap arrangement between the screen 9 and the inner wall of the screening cylinder 7; in order to conveniently lead out the screening barrel 7 from the materials (impurities) intercepted on the screen cloth 9, a discharge pipe 8 used for leading out the materials intercepted by the screen cloth 9 is arranged on the screening barrel 7, and the discharge pipe 8 is provided with a valve. The rotation motor 11 work drives the axis of rotation 10 and screen cloth 9 and rotates the material to screen on the screen cloth 9, and the material that is less than screen cloth 9 mesh aperture drops to screen cloth 9 below, slides along screen cloth 9 for the material (generally impurity granule) of holding back on screen cloth 9 under the effect of centrifugal force, exports through discharging pipe 8 at last.

As shown in fig. 1, because the material that screen cloth 9 sieved is powdered material, the material is comparatively easy to bond on screen cloth 9, for avoiding screen cloth 9 to block up, the utility model discloses be equipped with brush-holder stud 20 in screening barrel 7, brush-holder stud 20 level set up and with screening barrel 7 inner wall fixed connection, be equipped with brush layer 19 on brush-holder stud 20 (brush layer 19 can be the plastics brush or the animal brush among the prior art), brush layer 19 and screen cloth 9 contact set up for brush-holder stud 20 can brush the material that bonds on removing screen cloth 9 when screen cloth 9 rotates, avoids the material adhesion to influence screen cloth 9's screening efficiency on screen cloth 9.

As shown in fig. 1, in order to facilitate the discharge of the material passing through the screen 9, the bottom of the screening cylinder 7 is inclined, and a discharge pipe 17 is connected to the inclined lower end of the bottom of the screening cylinder 7. Because the material of screening is the powder material, even if the interior bottom slope of screening barrel 7 sets up, the material is also inconvenient to be derived discharge conduit 17 smoothly, for convenient deriving the material in discharge conduit 17 in order, the utility model discloses the discharge conduit 17 level that sets up, discharge conduit 17 is equipped with discharge opening 14, be equipped with and rotate the axle 12 of being connected with discharge conduit 17 along its length direction in the discharge conduit 17, be equipped with the discharge blade 13 that the spiral winding set up on the axle 12 of unloading, the axle 12 of unloading is connected through coupling assembling and pay-off axle 5 and is made the rotation of pay-off axle 5 drive unloading axle 12 rotate. Unloading axle 12 rotates and can drive discharge vane 13 and rotate, and then carries the material in will sieving the barrel 7 towards the passageway of unloading in, leads out from discharge opening 14 at last, can set up the material frame etc. that connects that is used for receiving the material below discharge opening 14 for the collection of material.

As shown in fig. 1, because the utility model discloses the spiral delivery subassembly that sets up is equipped with conveyor motor 24, for effectively utilizing this conveyor motor 24's power, the utility model discloses the coupling assembling that sets up includes two first drive wheels 21, two second drive wheels 15, sets up first drive belt 22 between two first drive wheels 21 and sets up the second drive belt 16 between two second drive wheels 15, and one of them first drive wheel 21 and one of them second drive wheel 15 rotate the connecting axle 18 coaxial coupling of connecting through the screening barrel 7 outer wall, and another first drive wheel 21 and pay-off shaft 5 coaxial arrangement, another second drive wheel 15 and the coaxial setting of unloading shaft 12. The two first driving wheels 21, the two second driving wheels 15, the first driving belt 22 and the second driving belt 16 can effectively realize that the feeding shaft 5 rotates to drive the discharging shaft 12 to rotate, so that the power output of the whole screening machine is reduced, and the screening machine is more energy-saving and environment-friendly.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. The utility model provides a powder screening machine of additive manufacturing, includes the screen cloth and the spiral feed mechanism that screening barrel, screening barrel internal rotation set up, spiral feed mechanism includes the feedstock channel with screening barrel intercommunication, sets up the screw conveying subassembly that is used for the pay-off in feedstock channel and the feed hopper who is connected with feedstock channel, its characterized in that: an anti-blocking component is arranged in the feeding hopper,

2. The additive manufactured powder screening machine according to claim 1, wherein: the spiral conveying assembly comprises a feeding shaft arranged along the length direction of the feeding channel, feeding blades spirally wound along the feeding shaft and a conveying motor arranged outside the feeding channel, the feeding shaft is rotatably connected with the feeding channel, and one end of the feeding shaft penetrates through the feeding channel and is connected with the conveying motor.

3. The additive manufactured powder screening machine according to claim 2, wherein: the driving assembly comprises a crank arranged on the feeding shaft, a connecting rod hinged with the crank and a mounting rod hinged with the connecting rod, and the mounting rod is connected with the lifting rod through a cross rod;

the mounting rod is connected with a mounting seat fixed on the outer wall of the feeding hopper in a vertical sliding mode, and the cross rod is connected with the mounting seat fixed on the outer wall of the feeding hopper through a vertically arranged spring telescopic rod.

4. An additive manufactured powder screening machine according to claim 3, wherein: the screen is horizontally arranged in the screening cylinder and is connected with a vertically arranged rotating shaft, the rotating shaft is rotatably connected with the screening cylinder, and the lower end of the rotating shaft penetrates through the screening cylinder and is connected with a rotating motor;

the screen is round, the circumferential side wall of the screen is smoothly contacted with the inner wall of the screening cylinder,

the screening barrel is provided with a discharge pipe used for leading out materials intercepted by the screen, and the discharge pipe is provided with a valve.

5. The additive manufactured powder screening machine according to claim 4, wherein: the bottom in the screening cylinder is obliquely arranged, the lower end of the bottom in the screening cylinder is connected with a discharge pipeline,

the discharging pipeline is horizontally arranged, the discharging pipeline is provided with a discharging opening, a discharging shaft which is arranged along the length direction of the discharging pipeline and is connected with the discharging pipeline in a rotating mode is arranged in the discharging pipeline, discharging blades which are spirally wound are arranged on the discharging shaft, and the discharging shaft is connected with the feeding shaft through a connecting assembly to enable the feeding shaft to rotate and drive the discharging shaft to rotate.

6. The additive manufactured powder screening machine according to claim 5, wherein: the connecting assembly comprises two first driving wheels, two second driving wheels, a first driving belt arranged between the two first driving wheels and a second driving belt arranged between the two second driving wheels, wherein one first driving wheel and one second driving wheel are coaxially connected through a connecting shaft rotationally connected with the outer wall of the screening cylinder, the other first driving wheel is coaxially arranged with the feeding shaft, and the other second driving wheel is coaxially arranged with the discharging shaft.