CN219129938U

CN219129938U - Titanium alloy fine powder gas screening device

Info

Publication number: CN219129938U
Application number: CN202320190249.8U
Authority: CN
Inventors: 郝国建; 于军; 姜洪涛; 马超
Original assignee: Jiangsu Zhongzhuan New Material Co ltd
Current assignee: Jiangsu Zhongzhuan New Material Co ltd
Priority date: 2023-02-13
Filing date: 2023-02-13
Publication date: 2023-06-06
Anticipated expiration: 2033-02-13

Abstract

The utility model discloses a titanium alloy fine powder gas screening device which comprises a screening cylinder and a feeding cylinder fixedly arranged at the top end of the screening cylinder, wherein the bottom end of the feeding cylinder is rotationally connected with a conical screen frame arranged in the screening cylinder, the bottom end of the conical screen frame is fixedly communicated with a discharging channel, the top end of the feeding cylinder is fixedly provided with a screening motor, the output end of the screening motor is fixedly provided with a driving shaft, and the bottom end of the driving shaft is fixedly provided with a uniformly distributed connecting rod.

Description

Titanium alloy fine powder gas screening device

Technical Field

The utility model relates to the technical field of 3D printing, in particular to a titanium alloy fine powder gas screening device.

Background

The titanium alloy metal powder is a common material in the 3D printing technology, and because the titanium alloy metal powder below 20 microns has the physical property of extremely easy agglomeration, the titanium alloy metal powder can easily block the meshes of a screen, and the screening work of a common screen is difficult to complete. Because the fine powder of the titanium alloy has the characteristic of inflammability and explosiveness, and the screening by using common air flow as power has a certain potential safety hazard, the screening work is performed by using an inert gas screening device. At present, the common titanium alloy micropowder gas screening device mainly comprises the steps of introducing inert gas under the vacuum condition, driving a net drum to rapidly rotate in a screening container by virtue of a motor, and causing the circulation of air flow in the container, so that titanium alloy micropowder powder passes through the screen drum to finish screening work. However, the applicant believes that the following disadvantages exist in the manner of sieving by only using airflow to drive the micro powder through the mesh drum:

the efficiency of titanium alloy micro powder passing through the screen cylinder is low, most micro powder can directly fall under the effect of gravity and be discharged from the coarse powder channel, and the problem of incomplete screening and multiple screening is caused.

Disclosure of Invention

The utility model aims to provide a titanium alloy fine powder gas screening device, which aims to solve the problems that the efficiency of passing titanium alloy fine powder through a screen cylinder is low and incomplete in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a gaseous screening ware of tiny powder of titanium alloy, includes screening section of thick bamboo and fixed last feed cylinder that sets up in screening section of thick bamboo top, the bottom of going up the feed cylinder rotates and is connected with the taper screen frame that sets up in screening section of thick bamboo inside, the bottom fixed intercommunication of taper screen frame has the unloading passageway, the top fixed mounting of going up the feed cylinder has screening motor, the fixed drive shaft that is provided with of output of screening motor, the bottom fixed of drive shaft is provided with evenly distributed's connecting rod, the inboard fixed connection of bottom and taper screen frame of connecting rod, the middle part of screening section of thick bamboo inner wall bottom is equipped with the coarse powder passageway, evenly distributed's fine powder collecting hopper has been seted up to the periphery of screening section of thick bamboo inner wall bottom, one side fixed intercommunication of going up the feed cylinder has the powder adding mechanism that is used for adding titanium alloy fine powder, relies on centrifugal force and inert gas's circulation to accelerate the miropowder and passes through the screen cloth, accomplishes the screening work of miropowder, and the passing rate of miropowder is high, and the problem that the mesh is blocked is difficult for appearing to screen cloth, sieves more thoroughly.

Preferably, the powder adding mechanism comprises a pushing cylinder and a storage hopper fixedly connected to the top end of the pushing cylinder, a speed reducing motor is fixedly arranged at one end of the pushing cylinder, a pushing auger positioned in the pushing cylinder is fixedly arranged at the output end of the speed reducing motor, and the powder adding mechanism is simple and convenient to add, stable in uniform speed and not easy to flow backwards.

Preferably, the bottom end fixing of screening section of thick bamboo is provided with the mounting bracket, the middle part of mounting bracket bottom is fixed be provided with the inside communicating coarse powder discharge port of coarse powder passageway, the periphery of mounting bracket bottom is fixed be provided with the inside communicating fine powder discharge port of fine powder collection fill, the middle part of coarse powder discharge port and the middle part of fine powder discharge port all fixed mounting have discharge valve, the titanium alloy miropowder after the discharge screening of being convenient for.

Preferably, one side of the feeding cylinder is fixedly communicated with an air inlet pipeline, so that inert gas is conveniently introduced, and screening effect and safety are improved.

Preferably, one side of the screening cylinder is fixedly communicated with an exhaust pipeline, and a filtering gauze is fixedly arranged on the inner side of the joint of the exhaust pipeline and the screening cylinder, so that circulated gas can be filtered, and micropowder and powder are prevented from being discharged.

Preferably, the top of coarse powder passageway is fixed and is provided with flange, the unloading passageway passes through flange and coarse powder passageway rotation to be connected, can make cone screen frame continuously fast, accomplishes the screening work of powder.

Preferably, the front fixed mounting of screening section of thick bamboo has the switch board, the fixed surface mounting of switch board has screening switch, gear motor and screening motor are all through screening switch and external power source electric connection, and easy operation is convenient.

Compared with the prior art, the utility model has the beneficial effects that: this gaseous screening ware of titanium alloy metal miropowder is flown by motor drive cone screen frame and is changeed, relies on centrifugal force and inert gas's circulation to accelerate the miropowder and passes through the screen cloth, accomplishes the screening work of miropowder, and the passing rate of miropowder is high, and the problem that the mesh jam is difficult for appearing, and the screening is more thorough, has avoided traditional gaseous screening ware to need screening titanium alloy miropowder drawback many times, and is more high-efficient convenient.

Drawings

FIG. 1 is a front cross-sectional view of a gas classifier of the present utility model;

FIG. 2 is a top cross-sectional view of the screen drum of the present utility model;

FIG. 3 is a schematic view of the structure of the conical screen frame of the present utility model;

fig. 4 is a front cross-sectional view of the powder adding mechanism of the present utility model.

In the figure: 1. a mounting frame; 2. a sieving cylinder; 3. a powder adding mechanism; 31. a storage hopper; 32. a pushing cylinder; 33. a speed reducing motor; 34. pushing the auger; 4. conical screen frame; 5. a connecting rod; 6. an air intake duct; 7. a drive shaft; 8. a screening motor; 9. a feeding cylinder; 10. a fine powder collection hopper; 11. a filter gauze; 12. an exhaust duct; 13. a connecting flange; 14. a meal passage; 15. a coarse powder discharge port; 16. a fine powder discharge port; 17. a discharge valve; 18. a switch board; 19. and a discharging channel.

Description of the embodiments

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

Referring to fig. 1-4, the utility model provides a titanium alloy fine powder gas screening device, which comprises a screening cylinder 2 and an upper charging cylinder 9 fixedly arranged at the top end of the screening cylinder 2, wherein the bottom end of the upper charging cylinder 9 is rotationally connected with a conical screen frame 4 arranged in the screening cylinder 2, the bottom end of the conical screen frame 4 is fixedly communicated with a discharging channel 19, the top end of the upper charging cylinder 9 is fixedly provided with a screening motor 8, the output end of the screening motor 8 is fixedly provided with a driving shaft 7, the bottom end of the driving shaft 7 is fixedly provided with uniformly distributed connecting rods 5, the bottom end of the connecting rods 5 is fixedly connected with the inner side of the conical screen frame 4, the middle part of the bottom end of the inner wall of the screening cylinder 2 is provided with coarse powder channels 14, the periphery of the bottom end of the inner wall of the screening cylinder 2 is provided with uniformly distributed fine powder collecting hoppers 10, one side of the upper charging cylinder 9 is fixedly communicated with a powder adding mechanism 3 for adding titanium alloy fine powder, one side of the upper charging cylinder 9 is fixedly communicated with an air inlet pipeline 6, one side of the screening cylinder 2 is fixedly communicated with an exhaust pipeline 12, the inner side of the exhaust pipeline 12 is fixedly connected with a screening cylinder 2, the inner side of the connection part of the screening cylinder 2 is fixedly provided with a screening motor 11, the coarse powder channel 14 is fixedly connected with a speed reducing motor 13, the upper side of the screening motor is fixedly connected with a power supply plate 18, the screening motor is fixedly connected with the screening motor 18, the upper side of the screening motor is fixedly connected with a power supply plate 18 through a power supply 18, the power supply 18 is fixedly connected with a reducing switch 33 and a power supply 18 through a rotary switch 18;

during the use, screening motor 8 then drives cone screen frame 4 through drive shaft 7 and connecting rod 5 and flies at screening section of thick bamboo 2 inside and change, and the fine powder of titanium alloy that is located cone screen frame 4 inside can get into screening section of thick bamboo 2 inside through cone screen frame 4 under the effect of centrifugal force to fall into in the fine powder collection fill 10, coarse powder then directly falls under the effect of gravity, and inside entering coarse powder passageway 14 through unloading passageway 19, accomplish screening work, screening efficiency is high, is difficult for appearing the jam of mesh.

Referring to fig. 1 and 4, further, the powder adding mechanism 3 includes a pushing cylinder 32 and a storage hopper 31 fixedly connected to the top end of the pushing cylinder 32, one end of the pushing cylinder 32 is fixedly provided with a speed reducing motor 33, and the output end of the speed reducing motor 33 is fixedly provided with a pushing auger 34 positioned inside the pushing cylinder 32;

when the titanium alloy powder feeding device is used, titanium alloy fine powder to be screened is added into the storage hopper 31, after the screening device is started, the gear motor 33 can work to drive the pushing auger 34 to slowly rotate, the titanium alloy fine powder is slowly pushed into the feeding cylinder 9, and uniform and quantitative addition of titanium alloy micro powder is realized.

Referring to fig. 1 and 2, further, the bottom end of the sieving barrel 2 is fixedly provided with a mounting frame 1, the middle part of the bottom end of the mounting frame 1 is fixedly provided with a coarse powder discharge port 15 communicated with the interior of the coarse powder channel 14, the periphery of the bottom end of the mounting frame 1 is fixedly provided with a fine powder discharge port 16 communicated with the interior of the fine powder collecting hopper 10, and the middle parts of the coarse powder discharge port 15 and the fine powder discharge port 16 are fixedly provided with discharge valves 17;

when the device is used, the titanium alloy fine powder in the conical screen frame 4 enters the screening cylinder 2 through the conical screen frame 4 under the action of centrifugal force and falls into the fine powder collecting hopper 10, and coarse powder directly falls into the coarse powder channel 14 through the blanking channel 19 under the action of gravity to complete screening separation of coarse powder and fine powder.

When the embodiment of the application is used, the following steps are adopted: after the titanium alloy fine powder to be screened is added into the storage hopper 31 and is screened, the speed reducing motor 33 works to drive the pushing auger 34 to slowly rotate, the titanium alloy fine powder is slowly pushed into the feeding cylinder 9, falls into the conical screen frame 4 under the action of gravity, the screening motor 8 drives the conical screen frame 4 to fly and rotate in the screening cylinder 2 through the driving shaft 7 and the connecting rod 5, the titanium alloy fine powder in the conical screen frame 4 enters the screening cylinder 2 under the action of centrifugal force through the conical screen frame 4 and falls into the fine powder collecting hopper 10, coarse powder directly falls into the coarse powder channel 14 through the blanking channel 19 under the action of gravity, inert gas enters the feeding cylinder 9 from the inside of the air inlet pipeline 6 in the screening process, the circulation of the titanium alloy fine powder is increased, the titanium alloy fine powder is floated, filtered through the conical screen frame 4 and then discharged through the filter screen 11, and the operator can respectively discharge the screened titanium alloy fine powder from the coarse powder discharge port 15 and the fine powder discharge port 16 by opening the discharge valve 17.

Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. The utility model provides a fine powder gas sifter of titanium alloy, includes screening section of thick bamboo (2) and fixed last feed cylinder (9) that set up on screening section of thick bamboo (2) top, its characterized in that: the utility model discloses a screening machine, including screening section of thick bamboo (2), screening section of thick bamboo (9), the bottom rotation of material loading section of thick bamboo (9) is connected with cone screen rack (4) that sets up in screening section of thick bamboo (2) inside, the bottom fixed intercommunication of cone screen rack (4) has unloading passageway (19), the top fixed mounting of material loading section of thick bamboo (9) has screening motor (8), the output of screening motor (8) is fixed to be provided with drive shaft (7), the bottom fixed of drive shaft (7) is provided with evenly distributed's connecting rod (5), the bottom of connecting rod (5) and the inboard fixed connection of cone screen rack (4), the middle part of screening section of thick bamboo (2) inner wall bottom is equipped with coarse powder passageway (14), evenly distributed's fine powder collecting hopper (10) have been seted up to the periphery of screening section of thick bamboo (2) inner wall bottom, one side fixed intercommunication of material loading section of thick bamboo (9) is used for adding titanium alloy fine powder adding mechanism (3).

2. A titanium alloy fine powder gas classifier as defined in claim 1, wherein: the powder adding mechanism (3) comprises a pushing cylinder (32) and a storage hopper (31) fixedly communicated with the top end of the pushing cylinder (32), one end of the pushing cylinder (32) is fixedly provided with a gear motor (33), and the output end of the gear motor (33) is fixedly provided with a pushing auger (34) positioned inside the pushing cylinder (32).

3. A titanium alloy fine powder gas classifier as defined in claim 1, wherein: the screening cylinder is characterized in that an installation frame (1) is fixedly arranged at the bottom end of the screening cylinder (2), a coarse powder discharge port (15) communicated with the interior of the coarse powder channel (14) is fixedly arranged in the middle of the bottom end of the installation frame (1), a fine powder discharge port (16) communicated with the interior of the fine powder collecting hopper (10) is fixedly arranged at the periphery of the bottom end of the installation frame (1), and a discharge valve (17) is fixedly arranged in the middle of the coarse powder discharge port (15) and in the middle of the fine powder discharge port (16).

4. A titanium alloy fine powder gas classifier as defined in claim 1, wherein: one side of the feeding cylinder (9) is fixedly communicated with an air inlet pipeline (6).

5. A titanium alloy fine powder gas classifier as defined in claim 1, wherein: an exhaust pipeline (12) is fixedly communicated with one side of the screening cylinder (2), and a filtering gauze (11) is fixedly arranged on the inner side of the joint of the exhaust pipeline (12) and the screening cylinder (2).

6. A titanium alloy fine powder gas classifier as defined in claim 1, wherein: the top end of the coarse powder channel (14) is fixedly provided with a connecting flange (13), and the blanking channel (19) is rotationally connected with the coarse powder channel (14) through the connecting flange (13).

7. A titanium alloy fine powder gas classifier as defined in claim 2, wherein: the screening cylinder (2) is characterized in that a switch plate (18) is fixedly arranged on the front surface of the screening cylinder (2), a screening switch is fixedly arranged on the surface of the switch plate (18), and the speed reducing motor (33) and the screening motor (8) are electrically connected with an external power supply through the screening switch.