CN219899119U

CN219899119U - Powder sieving auxiliary device for 3D printing

Info

Publication number: CN219899119U
Application number: CN202320708891.0U
Authority: CN
Inventors: 袁彬
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-04-03
Filing date: 2023-04-03
Publication date: 2023-10-27
Anticipated expiration: 2033-04-03

Abstract

The utility model belongs to the technical field of screening devices, and particularly relates to a 3D printing powder screening auxiliary device which comprises a main body and a screening component arranged in the main body, wherein the screening component comprises a screening plate obliquely arranged in the main body and a fixing plate arranged on one side surface of the main body, one side of the fixing plate is provided with a first motor, an output shaft of the first motor penetrates through the main body and extends into the main body and is connected with a cam shaft rotatably connected in the main body, 3D printing powder can be screened during use, multi-stage screening can be performed, screening precision is improved, the thickness of the powder is more uniform, screened powder can be pushed out through a set shifting plate, the motor, a screw and a first belt pulley during use, accumulation caused by screening out of the powder is prevented, scattering caused during powder taking out is avoided, and the powder is spread in a material receiving box in a flat mode.

Description

Powder sieving auxiliary device for 3D printing

Technical Field

The utility model belongs to the technical field of screening devices, and particularly relates to a powder screening auxiliary device for 3D printing.

Background

After the laser selective melting and forming, the metal powder needs to be recovered, sieved and reused; at present, two main powder screening modes are adopted, namely, manual powder screening is adopted, powder is placed on a screen, shaking is carried out by hand, and large particles and impurities are filtered out; secondly, using a vibrating powder sieving machine to filter powder in a vibrating mode;

through investigation publication (bulletin) number: CN216026074 discloses a 3D printing metal powder drum-type powder screening device, which discloses a 3D printing metal powder drum-type powder screening device in the technology, comprising a frame, a powder screening box arranged on the frame, a discharge opening arranged at the bottom of the powder screening box, and a switch valve arranged at the discharge opening; a cylindrical screen is arranged in the powder screening box and driven by a driving motor to rotate; one end of the screen is provided with an open mouth, the side wall of the powder screening box is provided with a mounting mouth corresponding to the open mouth, the outer wall of the mounting mouth is provided with a cover door, one side of the cover door is pivoted with the outer wall of the powder screening box, the other side of the cover door is mutually buckled with the other side of the cover door, and the like; the blanking pipe swings along with the cover door to enter and exit the open mouth, so that normal feeding is not affected, the screen mesh can be cleaned or replaced conveniently, and the technical effects of convenient use and operation and the like are achieved;

although this design can prevent to cause the problem that the dust flies upward, most screen the metal powder through single screening mode, this design makes the metal powder screening not perfect enough when in actual use, causes the metal powder thickness after the screening different, reduces the printing quality of 3D printing.

In order to solve the problems, the utility model provides a powder sieving auxiliary device for 3D printing.

Disclosure of Invention

To solve the problems set forth in the background art. The utility model provides a powder screening auxiliary device for 3D printing, which can screen metal powder for multiple times, improve the screening quality of the metal powder, and can push a metal powder pile flat when the metal powder is taken out and put in order to prevent the metal powder from scattering when the metal powder is taken out.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a 3D printing screen powder auxiliary device, comprising a main body, and a screen assembly installed in the main body;

the screening subassembly is including the slope setting is in sieve in the main part and install the fixed plate of main part one side surface, motor one is installed to one side of fixed plate, motor one's output shaft runs through the main part, and extends to in the main part, and be connected with the camshaft that rotates to connect in the main part, the main part internal rotation is connected with the screen drum, just be located one side of sieve is installed the stand pipe, the one end of stand pipe extends to set up in the screen drum, install belt pulley one on motor one's the output shaft, the roller of screen drum runs through the main part, and extends to one side of main part, and be connected with the belt pulley two phases that set up main part one side, belt pulley one with belt pulley two are connected through the belt.

As a preferable mode of the 3D printing screen powder auxiliary device of the present utility model, a bracket is installed in the screen cylinder.

In the powder sieving auxiliary device for 3D printing of the present utility model, the guide pipe is preferably inclined toward the screen cylinder.

The utility model relates to a powder screening auxiliary device for 3D printing, which is preferable and further comprises a leveling component arranged in a main body, wherein the leveling component comprises a screw rod rotatably connected in the main body, a sliding block in threaded connection with the outer surface of the screw rod and a belt pulley III arranged on one side of the main body, one end of the screw rod penetrates through the main body and is connected with the belt pulley III, the belt pulley III is connected with a belt pulley II through a belt, a shell is arranged on the bottom surface of the sliding block, a motor II is arranged in the shell, and a shifting sheet is arranged on an output shaft of the motor II.

As the powder sieving auxiliary device for 3D printing, the powder sieving auxiliary device for 3D printing is preferable, and a material receiving box is inserted into a groove formed in one side surface of the main body.

As the powder sieving auxiliary device for 3D printing, the main body is internally provided with the support plate above the screw rod, and the bottom surface of the support plate is provided with the sliding groove matched with the sliding block.

As the powder sieving auxiliary device for 3D printing, the powder sieving auxiliary device for 3D printing is preferable, and a screen is inserted into a sliding groove formed in one side surface of the main body.

As the powder sieving auxiliary device for 3D printing, the powder sieving auxiliary device for 3D printing is preferable, the fixing block is fixed on the inner wall of the main body and positioned below the sieve plate, the guide rod is connected in the through hole formed in the surface of the fixing block in a sliding manner, and one end of the guide rod, which is far away from the fixing block, is arranged on the bottom surface of the sieve plate.

Compared with the prior art, the utility model has the beneficial effects that:

1. the screening component is added on the basis, and the 3D printed powder can be screened through the set screen plate, the screen cylinder, the guide pipe and the cam shaft when in use, so that the multi-stage screening can be performed, the screening precision is improved, and the thickness of the powder is more uniform;

2. meanwhile, the pushing assembly is further added on the basis, and through the poking plate, the motor, the screw and the first belt pulley, when the powder box is used, the sieved powder can be pushed flat, the powder is prevented from being screened out to cause accumulation, and the powder cannot be scattered when taken out, so that the powder is spread in the material receiving box.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a cross-sectional view of FIG. 1 in accordance with the present utility model;

FIG. 3 is a schematic view of the structure of the screen drum, pulley II and bracket of the present utility model;

FIG. 4 is a schematic view of a guide tube according to the present utility model;

FIG. 5 is a schematic view of a pushing assembly according to the present utility model;

FIG. 6 is a schematic view of the structure of the screen according to the present utility model.

In the figure:

1. a main body;

2. a screen assembly; 201. a sieve plate; 202. a cam shaft; 203. a screen drum; 204. a fixing plate; 205. a first motor; 206. a guide rod; 207. a fixed block; 208. a guide tube; 209. a belt pulley II; 210. a bracket; 211. a first belt pulley;

3. a pushing assembly; 301. a belt pulley III; 302. a screw; 303. a support plate; 304. a slide block; 305. a housing; 306. a second motor; 307. a pulling piece; 308. a screen; 310. and (5) receiving a material box.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

As shown in fig. 1-6;

A3D prints and uses screening powder auxiliary device, including main part 1.

In this embodiment: through investigation publication (bulletin) number: CN216026074 discloses a 3D printing metal powder drum-type powder screening device, which discloses a 3D printing metal powder drum-type powder screening device in the technology, comprising a frame, a powder screening box arranged on the frame, a discharge opening arranged at the bottom of the powder screening box, and a switch valve arranged at the discharge opening; a cylindrical screen is arranged in the powder screening box and driven by a driving motor to rotate; one end of the screen is provided with an open mouth, the side wall of the powder screening box is provided with a mounting mouth corresponding to the open mouth, the outer wall of the mounting mouth is provided with a cover door, one side of the cover door is pivoted with the outer wall of the powder screening box, the other side of the cover door is mutually buckled with the other side of the cover door, and the like; the blanking pipe swings along with the cover door to enter and exit the open mouth, so that normal feeding is not affected, the screen mesh can be cleaned or replaced conveniently, and the technical effects of convenient use and operation and the like are achieved;

although the design can prevent the problem of dust flying, the metal powder is mostly screened by a single screening mode, the design ensures that the metal powder is not fully screened in actual use, the screened metal powder has different thickness, the printing quality of 3D printing is reduced, and the like.

According to the above, in order to be able to screen 3D printed metal powders finer, it also comprises a screen assembly 2 mounted inside the body 1; the screening assembly 2 comprises a screening plate 201 obliquely arranged in a main body 1 and a fixing plate 204 arranged on one side surface of the main body 1, a first motor 205 is arranged on one side of the fixing plate 204, an output shaft of the first motor 205 penetrates through the main body 1 and extends into the main body 1 and is connected with a cam shaft 202 rotatably connected in the main body 1, a screening cylinder 203 is rotatably connected in the main body 1, a guide pipe 208 is arranged in the main body 1 and positioned on one side of the screening plate 201, one end of the guide pipe 208 extends into the screening cylinder 203, a first belt pulley 211 is arranged on the output shaft of the first motor 205, a roller shaft of the screening cylinder 203 penetrates through the main body 1 and extends to one side of the main body 1 and is connected with a second belt pulley 209 arranged on one side of the main body 1, and the first belt pulley 211 is connected with the second belt pulley 209 through a belt.

In this embodiment: the first motor 205 on the fixed plate 204 drives the first belt pulley 211, the first belt pulley 211 drives the second belt pulley 209 to rotate simultaneously, and the output shaft of the first motor 205 directly drives the cam shaft 202 to push the sieve 201, so that the sieve 201 performs primary screening on powder, finer powder directly falls into the screen 308 in the main body 1 to be screened again, the larger powder can move to the guide pipe 208 in the main body 1 through the guide strip arranged on the sieve 201 to reach the required thickness degree, the rest powder is fed into the screen drum 203 to be screened again through the guide pipe 208, the powder attached to the surface of large-particle powder can fall off, and then the powder directly slides onto the screen 308 through the inclined plane arranged in the main body 1, so that the screening precision of the powder can be improved, and the thickness of the screened powder can reach the requirement.

In an alternative embodiment: a bracket 210 is installed in the screen cylinder 203.

In this embodiment: the support 210 prevents the screen cylinder 203 from tilting to one side, and improves the stability of the screen cylinder 203 during screening.

In an alternative embodiment: the guide tube 208 is inclined toward the screen cylinder 203.

In this embodiment: powder is fed into the screen cylinder 203 without affecting the normal rotation of the screen cylinder 203.

According to the above, in order to enable the metal powder in the receiving box 310 to be flattened, the flattening assembly 3 is further included, which is installed in the main body 1, the flattening assembly 3 includes a screw rod 302 rotatably connected in the main body 1, a slider 304 screwed on the outer surface of the screw rod 302, and a third pulley 301 provided on one side of the main body 1, one end of the screw rod 302 penetrates through the main body 1 and is connected with the third pulley 301, the third pulley 301 is connected with the second pulley 209 through a belt, a housing 305 is installed on the bottom surface of the slider 304, a second motor 306 is installed in the housing 305, and a pulling sheet 307 is installed on the output shaft of the second motor 306.

In this embodiment: the belt pulley II 209 drives the belt pulley III 301, so that the belt pulley III 301 drives the screw rod 302 in the support plate 303 to rotate, the screw rod 302 can drive the shell 305 on the sliding block 304 and the motor II 306 to move in a sliding groove formed in the bottom surface of the support plate 303, the motor II 306 drives the poking plate 307 to rotate, the powder after secondary screening is uniformly distributed in the material receiving box 310, and after the material receiving box 310 is full, the metal powder in the material receiving box 310 can be flattened by controlling the motor II 306 to reduce the speed.

In an alternative embodiment: a material receiving box 310 is inserted into a groove formed on one side surface of the main body 1.

In this embodiment: the falling powder was caught and collected.

In an alternative embodiment: a support plate 303 is arranged in the main body 1 and above the screw 302, and a chute matched with the slide block 304 is arranged on the bottom surface of the support plate 303.

In this embodiment: the screen powder falling from the upper part can be blocked to fall into the second motor 306, the poking piece 307 is guided, and meanwhile the motor and the poking piece 307 are prevented from shaking during operation.

In an alternative embodiment: a screen 308 is inserted into a chute formed on one side surface of the main body 1.

In this embodiment: and (3) sieving the metal powder again, so that the sieving precision is improved.

The inner wall of the main body 1 and below the screen plate 201 are fixed with a fixing block 207, through holes formed in the surface of the fixing block 207 are slidably connected with a guide rod 206, and one end of the guide rod 206, far away from the fixing block 207, is mounted on the bottom surface of the screen plate 201.

In this embodiment: the screen plate 201 can be stably rocked up and down in the main body 1.

The working principle and the using flow of the utility model are as follows: the first motor 205 on the fixed plate 204 drives the first belt pulley 211, the first belt pulley 211 drives the second belt pulley 209 to rotate simultaneously, and the output shaft of the first motor 205 directly drives the cam shaft 202 to push the sieve plate 201, the sieve plate 201 slides in the fixed block 207 through the guide rod 206, so that the sieve plate 201 performs primary screening on powder, finer powder directly falls into the sieve plate 308 in the main body 1 to screen again to the required thickness degree, larger powder can move to the guide tube 208 in the main body 1 through the guide strip arranged on the sieve plate 201, the rest powder can be fed into the sieve barrel 203 through the guide tube 208 to screen again, the powder attached to the surface of large-particle powder can be removed through the cover plate behind the main body 1, then the screened large-particle powder can directly slide onto the sieve plate 308 through the inclined plane arranged in the main body 1, the screened powder can be screened accurately, the screened powder thickness can reach the requirement, and the belt pulley three 209 drives the sieve plate 301 to drive the screw 302 in the support plate 303 to rotate, so that the screw 302 drives the shell 304 on the slide block 304 and the motor 305 to move to the second motor 307 in the chute 310 to be evenly distributed in the chute 310, and the chute 310 can be evenly distributed in the chute 310 after the chute is fully connected.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. 3D prints with screening powder auxiliary device, including main part (1), its characterized in that: also comprises a screening assembly (2) mounted in the main body (1);

the screening assembly (2) comprises a screening plate (201) obliquely arranged in a main body (1) and a fixing plate (204) arranged on one side surface of the main body (1), one side of the fixing plate (204) is provided with a first motor (205), an output shaft of the first motor (205) penetrates through the main body (1) and extends to the inside of the main body (1) and is connected with a cam shaft (202) rotationally connected in the main body (1), a screening cylinder (203) is rotationally connected in the main body (1), a guide tube (208) is arranged in the main body (1) and is positioned at one side of the screening plate (201), one end of the guide tube (208) extends to the inside of the screening cylinder (203), one end of the first motor (205) is provided with a first belt pulley (211), and a roller shaft of the first motor (203) penetrates through the main body (1) and extends to one side of the main body (1) and is connected with a second belt pulley (209) arranged at one side of the main body (1), and the first belt pulley (211) is connected with the second belt pulley (209).

2. The 3D printing screen powder assisting device according to claim 1, wherein: a bracket (210) is arranged in the screen cylinder (203).

3. The 3D printing screen powder assisting device according to claim 1, wherein: the guide pipe (208) is arranged obliquely towards one side of the screen cylinder (203).

4. The 3D printing screen powder assisting device according to claim 1, wherein: still including installing the pushing away flat subassembly (3) in main part (1), pushing away flat subassembly (3) are in including rotating screw rod (302) and threaded connection in main part (1) slider (304) and setting of screw rod (302) surface are in belt pulley three (301) of main part (1) one side, the one end of screw rod (302) is run through main part (1) and with belt pulley three (301) are connected, belt pulley three (301) pass through the belt with belt pulley two (209) are connected, shell (305) are installed to slider (304) bottom surface, install motor two (306) in shell (305), plectrum (307) are installed to the output shaft of motor two (306).

5. The 3D printing screen assist device as defined in claim 4, wherein: a material receiving box (310) is inserted in a groove formed in one side surface of the main body (1).

6. The 3D printing screen assist device as defined in claim 4, wherein: a support plate (303) is arranged in the main body (1) and above the screw rod (302), and a sliding groove matched with the sliding block (304) is formed in the bottom surface of the support plate (303).

7. The 3D printing screen assist device as defined in claim 4, wherein: a screen (308) is inserted into a chute formed in one side surface of the main body (1).

8. The 3D printing screen powder assisting device according to claim 1, wherein: the inner wall of main part (1) just is located sieve (201) below is fixed with fixed block (207), sliding connection has guide bar (206) in the through-hole of fixed block (207) surface offer, guide bar (206) keep away from the one end of fixed block (207) is installed the bottom surface of sieve (201).