CN211552311U

CN211552311U - Powder drying device for 3D printing

Info

Publication number: CN211552311U
Application number: CN201922426241.3U
Authority: CN
Inventors: 杨方; 黎旨钦; 梁振华; 陈求发
Original assignee: Foshan Mili3d Technology Co ltd
Current assignee: Foshan Mili3d Technology Co ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-09-22
Anticipated expiration: 2029-12-30

Abstract

The utility model discloses a 3D prints and uses powder drying device belongs to 3D and prints technical field, which comprises a tank body, jar body top outer wall installs the motor through the bolt, and the motor is inside to rotate through the shaft coupling and be connected with the axis of rotation, the axis of rotation runs through jar body and extends to jar internal portion, and axis of rotation circumference outer wall installs a plurality of cross arrangement's helical blade through the bolt, the internal portion of jar has seted up the cavity, and the internal portion packing of cavity has the low temperature heat source. The utility model discloses in through motor work, helical blade rotates along with the axis of rotation, and then reaches the purpose of stirring metal powder, and jar body top spiro union has into heat pipe, bottom spiro union to go out the heat pipe, makes the device be in low temperature heating's state always, reaches the even purpose of metal powder being heated, and then improves metal powder's drying effect, and jar body top inner wall installs electrostatic eliminator, eliminates the harm that metal powder looks mutual friction produced static.

Description

Powder drying device for 3D printing

Technical Field

The utility model relates to a 3D prints technical field, especially relates to a 3D prints and uses powder drying device.

Background

One of 3D printing, which is a rapid prototyping technology, is also called additive manufacturing, which is a technology for constructing an object by layer-by-layer printing using an adhesive material such as powdered metal or plastic based on a digital model file, and 3D printing is generally implemented by a digital technical material printer, is often used to manufacture a model in the fields of mold manufacturing, industrial design, and the like, and is then gradually used for direct manufacturing of some products, and there are already parts printed using this technology, which is applied to jewelry, footwear, industrial design, construction, engineering and construction, automobiles, aerospace, dental and medical industries, education, geographic information systems, civil engineering, guns, and other fields.

The metal powder material is a raw material of a metal 3D printing process, the basic performance of the powder has a great relationship with the quality of a final formed product, the requirements of metal 3D printing on the powder mainly lie in chemical composition, particle shape, particle size distribution, fluidity, recycling property and the like, the metal powder material can meet the basic requirements of metal 3D printing on the powder after being dried, but the existing powder drying device for 3D printing has the problem of poor powder drying effect caused by nonuniform heating.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that exists among the prior art, and the powder drying device is used in 3D printing that proposes.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a powder drying device for 3D printing comprises a tank body, wherein a motor is installed on the outer wall of the top end of the tank body through a bolt, the interior of the motor is rotatably connected with a rotating shaft through a coupler, the rotating shaft penetrates through the tank body and extends into the interior of the tank body, a plurality of spiral blades which are arranged in a crossed mode are installed on the outer wall of the circumference of the rotating shaft through bolts, a cavity is formed in the tank body, a low-temperature heat source is filled in the cavity, a heat inlet pipe is connected to the outer wall of the top end of the tank body in a screwed mode and penetrates through the tank body and extends into the cavity, a heat outlet pipe is connected to the outer wall of the bottom end of the tank body in a screwed mode and extends into the cavity, a nitrogen pipe is connected to one side of the outer wall of the circumference of the tank body in a screwed, the vacuum pump inlet end is spliced with a vacuum tube, the bottom end of the tank body is connected with a discharge tube in a threaded mode, and a valve is installed inside the discharge tube through a bolt.

Preferably, a sealing sleeve is sleeved at the joint of the rotating shaft, the tank body and the cavity.

Preferably, a feed inlet is formed in the outer wall of the top end of the tank body, a flip cover is hinged to one side of the feed inlet, and sealing gaskets are connected to the inner walls of the four sides of the feed inlet through glue injection.

Preferably, the inner wall of the tank body is provided with a temperature sensor through a bolt.

Preferably, a D-type fire extinguisher is installed on one side of the circumferential outer wall of the tank body through a mounting frame.

Preferably, the outer wall of the bottom end of the tank body is provided with a supporting leg through a bolt.

Preferably, the inlet end of the vacuum tube is sleeved with a protective cover through a bolt, and the outer wall of one side of the protective cover is provided with a vibration meter through a bolt.

The utility model has the advantages that:

1. the utility model provides a pair of 3D prints and uses powder drying device, through motor work, helical blade rotates along with the axis of rotation, and then reaches stirring metal powder's purpose, and jar body top spiro union has into heat pipe, the bottom spiro union has out the heat pipe, makes the device be in low temperature heating's state always, reaches the even purpose of metal powder being heated, and then improves metal powder's drying effect, and jar body top inner wall installs electrostatic eliminator, eliminates the harm that metal powder looks mutual friction produced static.

2. The utility model provides a pair of 3D prints and uses powder drying device, before getting into jar internal portion through metal powder, the nitrogen gas pipe fills jar internal portion with nitrogen gas, avoid the metal powder oxidation, improve metal powder's qualification rate, be provided with seal cover and seal gasket through the device, avoid the device to take place gas leakage, influence the use of vacuum pump, and jar body circumference outer wall one side installs D type fire extinguisher through the mounting bracket, D type fire extinguisher can be effectively with fuel (the combustible metal of lighting) and oxygen separation, avoid the emergence of D type conflagration, guarantee operational environment's security.

3. The utility model provides a pair of 3D prints and uses powder drying device has cup jointed the protection casing through the vacuum tube entrance point, when avoiding the vacuum pump just beginning to bleed, takes out metal powder inside the vacuum pump, and the metal powder that the vibrometer attaches the protection casing surface shakes and falls, avoids the protection casing to block up, and then improves the work efficiency of vacuum pump.

Drawings

Fig. 1 is a schematic structural diagram of a 3D printing powder drying device provided by the present invention;

fig. 2 is a schematic top view of the powder drying device for 3D printing according to the present invention;

fig. 3 is a schematic side view of the powder drying device for 3D printing according to the present invention;

fig. 4 is a schematic structural diagram of a 3D printing powder drying device provided by embodiment 2 of the present invention.

In the figure: 1 motor, 2 static eliminator, 3 nitrogen gas pipe, 4 cavities, 5 tank bodies, 6 heat outlet pipes, 7 supporting legs, 8 discharge pipes, 9 rotating shafts, 10 temperature and humidity sensors, 11D type fire extinguisher, 12 vacuum pumps, 13 helical blades, 14 heat inlet pipes, 15 feed inlets, 16 flip covers, 17 vacuum pipes, 18 protective covers and 19 vibration meters.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Example 1

Referring to fig. 1-3, a powder drying device for 3D printing comprises a tank body 5, a motor 1 is mounted on the outer wall of the top end of the tank body 5 through bolts, the inside of the motor 1 is rotatably connected with a rotating shaft 9 through a coupler, the rotating shaft 9 penetrates through the tank body 5 and extends to the inside of the tank body 5, a plurality of spiral blades 13 which are arranged in a crossed manner are mounted on the outer wall of the circumference of the rotating shaft 9 through bolts, a cavity 4 is formed in the tank body 5, a low-temperature heat source is filled in the cavity 4, a heat inlet pipe 14 is screwed on the outer wall of the top end of the tank body 5, the heat inlet pipe 14 penetrates through the tank body 5 and extends to the inside of the cavity 4, a heat outlet pipe 6 is screwed on the outer wall of the bottom end of the tank body 5, the heat outlet pipe 6 penetrates through the tank body 5 and, the outer wall in backup pad top has vacuum pump 12 through bolt fixed mounting, and vacuum pump 12 entrance point is pegged graft and is had

vacuum tube

17, and 5 bottom spiro unions in the jar body have discharging pipe 8, and the valve is installed through the bolt inside discharging pipe 8.

In the utility model, the sealing sleeve is sleeved at the joint of the rotating shaft 9, the tank body 5 and the cavity 4, so as to avoid air leakage and avoid vacuum;

a feed inlet 15 is formed in the outer wall of the top end of the tank body 5, feeding is carried out through the feed inlet 15, a turnover cover 16 is hinged to one side of the feed inlet 15, and sealing gaskets are connected to the inner walls of four sides of the feed inlet 15 through glue injection, so that the device is enabled to be airtight;

the inner wall of the tank body 5 is provided with a temperature sensor 10 through a bolt, the temperature inside the tank body 5 is monitored in real time through the temperature sensor 10, and metal powder inside the tank body 5 is ensured to be always in a low-temperature drying environment;

a D-type fire extinguisher 11 is installed on one side of the circumferential outer wall of the tank body 5 through a mounting frame, and the D-type fire extinguisher 11 can effectively separate fuel (ignited combustible metal) from oxygen so as to avoid D-type fire;

supporting legs 7 are installed on the outer wall of the bottom end of the tank body 5 through bolts, and installation space is provided for the hot water outlet pipe 6 and the discharging pipe 8.

The working principle is as follows: through the work of the motor 1, the helical blade 13 rotates along with the rotating shaft 9, so that the purpose of stirring the metal powder is achieved, the top end of the tank body 5 is in threaded connection with the heat inlet pipe 14, the bottom end of the tank body is in threaded connection with the heat outlet pipe 6, the device is always in a low-temperature heating state, the purpose of uniformly heating the metal powder is achieved, the drying effect of the metal powder is further improved, and the electrostatic eliminator 2 is arranged on the inner wall of the top end of the tank body 5, so that the harm of static electricity generated by mutual; before metal powder gets into jar body 5 inside, nitrogen gas pipe 3 is full of nitrogen gas with jar body 5 inside packing, avoid the metal powder oxidation, improve metal powder's qualification rate, be provided with seal cover and seal gasket through the device, avoid the device to take place gas leakage, influence vacuum pump 12's use, and jar body 5 circumference outer wall one side installs D type fire extinguisher 11 through the mounting bracket, D type fire extinguisher 11 can be effectively with fuel (the combustible metal of lighting) and oxygen separation, avoid the emergence of D type conflagration, guarantee operational environment's security.

Example 2

Referring to fig. 4, in the powder drying device for 3D printing, further, a protective cover 18 is sleeved at an inlet end of the vacuum tube 17 through a bolt, and a vibrator 19 is installed on an outer wall of one side of the protective cover 18 through a bolt.

The working principle is as follows: the protective cover 18 is sleeved at the inlet end of the vacuum tube 17, so that when the vacuum pump 12 starts to pump air, metal powder is pumped into the vacuum pump 12, the metal powder attached to the surface of the protective cover 18 is shaken off by the vibration meter 19, the protective cover 18 is prevented from being blocked, and the working efficiency of the vacuum pump 12 is improved.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a 3D prints and uses powder drying device, includes jar body (5), its characterized in that, jar body (5) top outer wall installs motor (1) through the bolt, and motor (1) inside is rotated through the shaft coupling and is connected with axis of rotation (9), axis of rotation (9) run through jar body (5) and extend to jar body (5) inside, and axis of rotation (9) circumference outer wall installs a plurality of cross arrangement's helical blade (13) through the bolt, jar body (5) inside has seted up cavity (4), and cavity (4) inside is filled with the low temperature heat source, jar body (5) top outer wall spiro union has into heat pipe (14), and advances heat pipe (14) run through jar body (5) and extend to cavity (4) inside, jar body (5) bottom outer wall spiro union has out heat pipe (6), and goes out heat pipe (6) and run through jar body (5) and extend to cavity (4) inside, the utility model discloses a vacuum cleaner, including jar body (5), jar body (5) circumference outer wall one side spiro union has nitrogen gas pipe (3), jar body (5) top inner wall installs electrostatic eliminator (2) through the bolt, jar body (5) circumference outer wall one side installs the backup pad through the bolt, and backup pad top outer wall has vacuum pump (12) through bolt fixed mounting, vacuum pump (12) entrance point is pegged graft and is had vacuum tube (17), jar body (5) bottom spiro union has discharging pipe (8), and discharging pipe (8) inside installs the valve through the bolt.

2. The powder drying device for 3D printing according to claim 1, wherein a sealing sleeve is sleeved at the joint of the rotating shaft (9) and the tank body (5) and the cavity (4).

3. The 3D printing powder drying device according to claim 2, wherein a feed inlet (15) is formed in the outer wall of the top end of the tank body (5), a turnover cover (16) is hinged to one side of the feed inlet (15), and sealing gaskets are connected to the inner walls of four sides of the feed inlet (15) through glue injection.

4. The 3D printing powder drying device according to claim 2, wherein the inner wall of the tank body (5) is provided with a temperature sensor (10) through a bolt.

5. The 3D printing powder drying device according to claim 2, wherein a D-type fire extinguisher (11) is mounted on one side of the outer circumferential wall of the tank body (5) through a mounting frame.

6. The 3D printing powder drying device according to claim 2, wherein the outer wall of the bottom end of the tank body (5) is provided with a supporting leg (7) through a bolt.

7. The 3D printing powder drying device according to claim 6, wherein the inlet end of the vacuum tube (17) is sleeved with a protective cover (18) through a bolt, and a vibrator (19) is mounted on the outer wall of one side of the protective cover (18) through a bolt.