CN211360651U

CN211360651U - Atmosphere protection device for laser vibration material disk production

Info

Publication number: CN211360651U
Application number: CN201921927298.5U
Authority: CN
Inventors: 张觉灵; 杨海西; 刘博�; 程业
Original assignee: Hebei Jingye Additive Material Manufacturing Technology Co ltd
Current assignee: Hebei Jingye Lide Additive Manufacturing Co ltd
Priority date: 2019-11-10
Filing date: 2019-11-10
Publication date: 2020-08-28
Anticipated expiration: 2029-11-10

Abstract

The utility model relates to the technical field of atmosphere protection devices, in particular to an atmosphere protection device for laser material increase production, which comprises a box body, wherein the front surface of the box body is provided with a door plate through a hinge, a lower annular tube is fixedly arranged at the bottom end of the inner wall of the box body, first through holes are uniformly distributed on the upper end surface of the lower annular tube, one end of the lower annular pipe is connected with the inlet end of the vacuum pump, the other end of the lower annular pipe is connected with the air inlet of the cyclone separator through a first connecting pipe, the outlet end of the cyclone separator is communicated with the transfer tank through a second connecting pipe, the second connecting pipe is also provided with an induced draft fan, the exit end of draught fan is close to mutually with the transfer jar, the upper end of transfer jar is connected with the one end of third connecting pipe, and during this device used, when laser vibration material disk production, can protect the material through inert gas.

Description

Atmosphere protection device for laser vibration material disk production

Technical Field

The utility model relates to an atmosphere protection device technical field especially relates to an atmosphere protection device for laser vibration material disk production.

Background

Metal additive manufacturing is the leading and most potential additive manufacturing technology and is an important development direction of advanced manufacturing technology. Selective Laser Melting (SLM) and near Net Shaping (LENS) Laser techniques in metal additive manufacturing have been rapidly developed in recent years.

The manufacturing of large-size metal components is a technical bottleneck which is difficult to break through in the SLM technology for a long time, because the technological characteristics of SLM layer-by-layer accumulative powder spreading determine that the size of a forming cylinder body is necessarily larger than the section size of a formed part, and no matter how large the formed part is, powder is spread layer-by-layer laser scanning forming is needed. The method comprises the following steps that (1) a molten pool is extremely high in temperature in the SLM forming process and needs to be filled with inert gas for protection, so that parts are prevented from being oxidized in the forming process, and the larger the size of the formed part is, the larger the space needing gas protection is; accordingly, the consumption of the inert gas is also large.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing an atmosphere protection device for laser additive manufacturing.

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

an atmosphere protection device for laser additive production comprises a box body, a door plate is arranged on the front surface of the box body through a hinge, a lower annular tube is fixedly arranged at the bottom end of the inner wall of the box body, first through holes are uniformly distributed on the upper end surface of the lower annular tube, one end of the lower annular pipe is connected with the inlet end of the vacuum pump, the other end of the lower annular pipe is connected with the air inlet of the cyclone separator through a first connecting pipe, the outlet end of the cyclone separator is communicated with the transfer tank through a second connecting pipe, the second connecting pipe is also provided with an induced draft fan, the outlet end of the induced draft fan is close to the transfer pot, the upper end of the transfer pot is connected with one end of a third connecting pipe, the top end of the inner wall of the box body is fixedly provided with an upper annular pipe, the lower end face of the upper annular pipe is provided with second through holes which are evenly distributed, and the upper annular pipe is communicated with the other end of the third connecting pipe.

Preferably, the second connecting pipe is further provided with a filter box, and a filter screen is arranged in the filter box.

Preferably, the upper end of the filter box is also provided with a cover plate through a screw.

Preferably, a valve is arranged on a discharge port at the lower end of the cyclone separator.

Preferably, valves are installed on the first connecting pipe and the second connecting pipe.

Preferably, the device also comprises a storage tank, wherein the outlet end of the storage tank is communicated with the transfer tank, and the outlet end of the storage tank is provided with a pressure reducing valve.

The utility model has the advantages that:

1. when this device uses, put into the box with laser vibration material disk equipment inside, shut the door plant, then through the vacuum pump with the interior evacuation of device, discharge inert gas to the transfer jar through the storage tank, then open valve and draught fan on first connecting pipe and the third connecting pipe, make inert gas at transfer jar and the inside circulation flow of box under the effect of draught fan, make there be protective gas in the box all the time, when laser vibration material disk production, can protect the material through inert gas.

2. When this device used, when laser vibration material disk production, the powder of production can flow into cyclone's inside earlier along the air current, carries out preliminary dust removal through cyclone, then removes dust through the filter screen carries out the secondary for inert gas can recycle, improves resource utilization.

Drawings

Fig. 1 is a schematic main sectional structure diagram of an atmosphere protection device for laser additive manufacturing according to the present invention;

fig. 2 is a schematic structural view of a laser additive manufacturing atmosphere protection device according to the present invention;

fig. 3 is a schematic top view of the lower annular tube of the atmosphere protection device for laser additive manufacturing according to the present invention.

In the figure: the device comprises a box body 1, a vacuum pump 2, a lower annular pipe 3, an upper annular pipe 4, a first connecting pipe 5, a cyclone separator 6, a second connecting pipe 7, a filter box 8, a filter screen 9, an induced draft fan 10, a transfer tank 11, a third connecting pipe 12, a door panel 13 and a storage tank 14.

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.

Referring to fig. 1-3, an atmosphere protection device for laser vibration material disk production, includes box 1, and there is door plant 13 in the front of box 1 through the hinge mounting, still is provided with rubber seal between door plant 13 and the box 1, the bottom mounting of box 1 inner wall is provided with down ring pipe 3, evenly distributed's first through-hole is seted up to the up end of ring pipe 3 down, the one end of ring pipe 3 is connected with the entrance point of vacuum pump 2 down, the other end of ring pipe 3 is connected with cyclone 6's air inlet through first connecting pipe 5 down, cyclone 6's exit end is linked together with transfer jar 11 through second connecting pipe 7, still install draught fan 10 on the second connecting pipe 7, the exit end of draught fan 10 is close to with transfer jar 11 mutually, the upper end of transfer jar 11 is connected with the one end of third connecting pipe 12, the top end of the inner wall of the box body 1 is fixedly provided with an upper annular pipe 4, the lower end face of the upper annular pipe 4 is provided with second through holes which are uniformly distributed, and the upper annular pipe 4 is communicated with the other end of the third connecting pipe 12.

Further, a filter box 8 is further installed on the second connecting pipe 7, and a filter screen 9 is arranged inside the filter box 8.

Further, the upper end of the filter box 8 is also provided with a cover plate through screws, and the filter screen 9 can be replaced or cleaned by opening the cover plate.

Furthermore, a valve is arranged on a discharge port at the lower end of the cyclone separator 6, and materials in the cyclone separator 6 can be discharged through the valve.

Further, valves are mounted on the first connecting pipe 5 and the second connecting pipe 7.

Further, the device also comprises a storage tank 14, wherein an outlet end of the storage tank 14 is communicated with the transfer tank 11, and a pressure reducing valve is installed on an outlet end of the storage tank 14.

In this embodiment, during this device uses, put into box 1 with laser vibration material disk equipment inside, door plate 13 has been closed, then through vacuum pump 2 with the interior evacuation of box 1, discharge inert gas to transfer jar 11 through storage tank 14, then open valve and draught fan 10 on first connecting pipe 5 and the third connecting pipe 12, make inert gas at transfer jar 11 and the internal circulation of box 1 flow under the effect of draught fan 10, inert gas is from box 1 first advance to go into lower ring pipe 3, then follow first connecting pipe 5 of entering in proper order of lower ring pipe 3, cyclone 6 and second connecting pipe 7, enter into transfer jar 11, rethread third connecting pipe 12 and last ring pipe 4 reentrant box 1, make and have protective gas in the box 1 all the time, when laser vibration material disk production, can protect the material through inert gas.

When this device used, when laser vibration material disk production, the powder of production can flow into cyclone 6's inside earlier along the air current, tentatively removes dust through cyclone 6, then removes dust through filter screen 9 carries out the secondary for inert gas can recycle, improves resource utilization.

After the device once production finishes, the inert gas in the transfer tank 11 can be reused, and when the air pressure is lower, the inert gas can be supplemented through the storage tank 14, so that the resource utilization rate 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 an atmosphere protection device for laser vibration material disk production, includes box (1), and there is door plant (13) in the front of box (1) through the hinge mounting, its characterized in that, the bottom mounting of box (1) inner wall is provided with down ring pipe (3), evenly distributed's first through-hole is seted up to the up end of ring pipe (3) down, the one end of ring pipe (3) is connected with the entrance point of vacuum pump (2) down, the other end of ring pipe (3) is connected with cyclone (6)'s air inlet through first connecting pipe (5) down, cyclone (6)'s exit end is linked together with transfer jar (11) through second connecting pipe (7), still install draught fan (10) on second connecting pipe (7), the exit end of draught fan (10) is close to with transfer jar (11) mutually, the upper end of transfer jar (11) is connected with the one end of third connecting pipe (12), the top end of the inner wall of the box body (1) is fixedly provided with an upper annular pipe (4), the lower end face of the upper annular pipe (4) is provided with second through holes which are uniformly distributed, and the upper annular pipe (4) is communicated with the other end of the third connecting pipe (12).

2. The atmosphere protection device for the laser additive manufacturing according to claim 1, wherein a filter box (8) is further installed on the second connecting pipe (7), and a filter screen (9) is arranged inside the filter box (8).

3. The atmosphere protection device for laser additive manufacturing according to claim 2, wherein a cover plate is further mounted on the upper end of the filter box (8) through screws.

4. The atmosphere protection device for laser additive manufacturing according to claim 3, wherein a valve is installed on a discharge port at the lower end of the cyclone separator (6).

5. The atmosphere protection device for laser additive manufacturing according to claim 4, wherein valves are installed on the first connecting pipe (5) and the second connecting pipe (7).

6. The atmosphere protection device for laser additive manufacturing according to claim 1 or 5, further comprising a storage tank (14), wherein an outlet end of the storage tank (14) is communicated with the transfer tank (11), and a pressure reducing valve is installed on the outlet end of the storage tank (14).