CN206965383U - A kind of circulating purifying device in 3D printing equipment - Google Patents
A kind of circulating purifying device in 3D printing equipment Download PDFInfo
- Publication number
- CN206965383U CN206965383U CN201720855343.5U CN201720855343U CN206965383U CN 206965383 U CN206965383 U CN 206965383U CN 201720855343 U CN201720855343 U CN 201720855343U CN 206965383 U CN206965383 U CN 206965383U
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- filter core
- purifying device
- blowback
- printing equipment
- circulating purifying
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Abstract
Circulating purifying device in a kind of 3D printing equipment disclosed in the utility model, the circulating purifying device in a kind of 3D printing equipment include the tracheae being connected with forming unit, are connected with blower fan and filter core on tracheae in turn and form closure pipeline with forming unit；The both ends of each filter core are respectively arranged with intake valve and air outlet valve, and backflush unit is additionally provided with each filter core.Circulating purifying device of the present utility model is used alternatingly by using more filter core parallel connections, avoids the inconvenience that filter element replacing in print procedure is brought, ensure that continuing for print job；The backflush unit that each filter core carries, the impurity adsorbed on saturation filter core can be blown off, filter core is returned into recycling state, accomplish that each filter core recycles；It is simple in construction, it is easy to use, there is good practical value.
Description
Technical field
The utility model belongs to 3D printing equipment technical field, and in particular to the circularly purifying dress in a kind of 3D printing equipment
Put.
Background technology
Selective laser fusing (SLM) is a kind of method of metalwork direct forming, is the latest development of increases material manufacturing technology
Achievement.The technology is basic thought based on Quick-forming, using " increment " manufacture successively melted, passes through three-dimensional CAD mould
Type direct forming has a part of geometry in particular, and metal dust is completely melt in forming process, produces metallurgical binding.Using
The metal parts that this technology can manufacture is that traditional machining means can not manufacture, shape and structure is complicated, is that laser is rapid-result soon
One of Main way of shape technology application.
Selective laser melting unit is generally divided into formation zone and gas circulation purifying area, and formation zone is used for laser printing zero
Part, the recyclegas that gas circulation purifying area is used for inside filtering purifying equipment；Gas circulation purifying area is utilized with formation zone and followed
Ring gas piping connects, and produces pressure difference by the blower fan in pipeline, produces near the print job face of formation zone and uniformly blow
Wind effect, the impurity such as caused flue dust or particle during laser sintering powder is taken away, carries the recyclegas edge of impurity
Recycle gas line and enter gas circulation purifying area, impurity is filtered when passing through purifying filter element, and clean gas enters herein
Enter formation zone, recycle.One group of filter core is installed in gas circulation purification part in the prior art, under pressure difference caused by blower fan,
The recyclegas of carrier's impurity enters from cartridge top, is flowed out after filter core purifies from bottom, and impurity is fallen by filter element filtering.
After equipment runs a period of time, filter core is gradually filled by impurity, is finally reached saturation state, it is necessary to change filter core in time, no
Printing effect will then be influenceed.
If filter core reaches saturation state during equipment prints, now need time-out printing to work, open net
Change cabinet to be changed filter core.Due to needing to change filter core, the closed environment for circulating wind path is destroyed, and the oxygen in closed environment contains
Amount steeply rises, and starts again at before print job, it is necessary to inert gas to device interior gas displacement into inert gas, so as to
Metal oxidation does not occur for workpiece during ensureing laser sintered metal dust, ensures print quality.
Utility model content
The purpose of this utility model is to provide the circulating purifying device in a kind of 3D printing equipment, solves existing circulation
The problem of influence printing effect, filter core can not recycle when purifier changes filter core.
The utility model is the technical scheme adopted is that the circulating purifying device in a kind of 3D printing equipment includes and shaping
The tracheae that unit is connected, it is connected with blower fan and filter core on tracheae in turn and forms closure pipeline with forming unit；Each filter core
Both ends be respectively arranged with intake valve and air outlet valve, be additionally provided with backflush unit in each filter core.
It is of the present utility model to be further characterized in that,
Filter core quantity is no less than two and parallel with one another each other.
Backflush unit includes being arranged on barrel strainer inside filter core, covered with flat plate cover at the top of filter screen, is set on flat plate cover
Blowback air inlet pipe is equipped with, blowback blast pipe is additionally provided with filter screen.
Blowback air inlet pipe is by flat plate cover and passes filter core outer wall, and blowback intake valve is provided with blowback air inlet pipe；
Blowback blast pipe passes filter core side wall and is provided with blowback air bleeding valve.
Receiver is additionally provided with close to filter core one end of intake valve.
The beneficial effects of the utility model are：Circulating purifying device in a kind of 3D printing equipment of the utility model is by adopting
It is used alternatingly with more filter core parallel connections, avoids the inconvenience that filter element replacing in print procedure is brought, ensure that continuing for print job；
The backflush unit that each filter core carries, the impurity adsorbed on saturation filter core can be blown off, filter core is returned into recycling shape
State, accomplish that each filter core recycles；It is simple in construction, it is easy to use, there is good practical value.
Brief description of the drawings
Fig. 1 is the structural representation of the circulating purifying device in a kind of 3D printing equipment of the utility model；
Fig. 2 is the structural representation of filter core in the circulating purifying device in a kind of 3D printing equipment of the utility model.
In figure, 1. forming units, 2. blowback routes, 3. print job faces, 4. circulation wind paths, 5. tracheaes, 6. blowback air inlets
Pipe, 7. blower fans, 8. intake valves, 9. air outlet valves, 10. blowback intake valves, 11. blowback blast pipes, 12. filter cores, 13. blowbacks exhaust
Valve, 14. filter screens, 15. flat plate covers, 16. receivers, 17. air inlet routes, 18. blowback routes.
Embodiment
The utility model is described in detail with reference to the accompanying drawings and detailed description.
Circulating purifying device in a kind of 3D printing equipment of the utility model, as shown in figure 1, including with the phase of forming unit 1
The tracheae 5 of connection, it is connected with blower fan 7 and filter core 12 on tracheae 5 in turn and forms closure pipeline with forming unit 1；Each filter core
12 both ends are respectively arranged with intake valve 8 and air outlet valve 9, and intake valve 8 and air outlet valve 9 control the gas into filter core 12 to lead to respectively
Road folding, backflush unit is additionally provided with each filter core 12；It is provided with print job face 3 in forming unit 1, the gas in tracheae 5
The impurity in body purging print job face 3, and carry it and enter in filter core 12.
The quantity of filter core 12 is no less than two and parallel with one another each other, and each filter core 12 passes through the He of intake valve 8 thereon
Air outlet valve 9 opens the work of filtration, purification, ensures the lasting progress in printing-forming.
As shown in Fig. 2 backflush unit includes being arranged on the barrel strainer 14 inside filter core 12, filter screen 14 is nested in filter core 12
Inside, the top of filter screen 14 are provided with blowback air inlet pipe 6 on flat plate cover 15, are additionally provided with filter screen 14 anti-covered with flat plate cover 15
Blow blast pipe 11；Blowback air inlet pipe 6 is by flat plate cover 15 and passes the outer wall of filter core 12, and being provided with blowback in blowback air inlet pipe 6 enters
Air valve 10, for controlling the folding of blowback air inlet pipe 6；Blowback blast pipe 11 passes the side wall of filter core 12 and is provided with blowback row
Air valve 13, for controlling the folding of blowback blast pipe 11.
Receiver 16 is additionally provided with close to one end of filter core 12 of intake valve 8, purge gas will be attached to the outer wall of filter screen 14
Impurity is blown off, and impurity is collected in receiver 16, ensures that filter core 12 can circulate multiple utilization.
The course of work of circulating purifying device of the present utility model：
When in normal purification process, blower fan 7 is opened, gas purges print job face 3 in tracheae 5, after carrying impurity
Direction is as shown in circulation wind path 4, now, opens the intake valve 8 and air outlet valve 9 of the first filter core, closes the valve of other filter cores 12,
Gas with impurity is entered to purify in the first filter core by circulation wind path 4, and after gas enters filter screen 14, impurity is filtered in filter screen
Outside 14, direction such as air inlet route 17；
When long lasting for purification, first group of filter core saturation, its intake valve 8 and air outlet valve 9 are closed, by the filter core of saturation
The circulatory system is isolated, now opens the second filter core or the intake valve 8 and air outlet valve 9 of other filter cores, continues filtration, purification work
Make；
After end-of-job is purified, the filter core 12 after saturation can carry out blowback recycling, close each saturation filter core
12 intake valve 8 and air outlet valve 9, opens blowback intake valve 10, blowback air bleeding valve 13, and blowback air inlet pipe 6 is by the gas band of high pressure
Enter in filter screen 14, filter screen 14 is inside and outside to produce pressure difference, the impurity that the outer surface of filter screen 14 is adhered to is blown off, and be collected into receiver 16
Interior, excessive gas is discharged from blowback blast pipe 11, and as shown in blowback route 2, receiver 16 detachably clears up the miscellaneous of collection in direction
Matter.By blowback, filter screen 14 returns to the state that can be re-used, and filter core 12 may be reused.
Circulating purifying device of the present utility model, in use,
A) filter core 12 can be changed in print procedure, while not time-out printing works, and saves and is individually replaced the He of filter core 12
Substitution gas time again, while ensure that print quality；
B) saturation filter core 12 is isolated out circulating purification system, using backflush unit, will can be adsorbed on saturation filter core 12
Impurity is blown off, and filter core 12 is returned to the state that can be reused, and accomplishes that each filter core repeatedly uses.
Claims (5)
1. the circulating purifying device in a kind of 3D printing equipment, it is characterised in that including the tracheae being connected with forming unit (1)
(5) blower fan (7) and filter core (12), are connected with tracheae (5) in turn and forms closure pipeline with forming unit (1)；Each filter core
(12) both ends are respectively arranged with intake valve (8) and air outlet valve (9), and backflush unit is additionally provided with each filter core (12).
2. the circulating purifying device in a kind of 3D printing equipment according to claim 1, it is characterised in that described filter core
(12) quantity is no less than two and parallel with one another each other.
3. the circulating purifying device in a kind of 3D printing equipment according to claim 1, it is characterised in that described blowback
Unit includes being arranged on the internal barrel strainer (14) of filter core (12), and filter screen (14) top is covered with flat plate cover (15), flat plate cover
(15) blowback air inlet pipe (6) is provided with, blowback blast pipe (11) is additionally provided with filter screen (14).
4. the circulating purifying device in a kind of 3D printing equipment according to claim 3, it is characterised in that described blowback
Air inlet pipe (6) is by flat plate cover (15) and passes filter core (12) outer wall, and blowback air inlet pipe is provided with blowback intake valve on (6)
(10)；
Described blowback blast pipe (11) passes filter core (12) side wall and is provided with blowback air bleeding valve (13).
5. the circulating purifying device in a kind of 3D printing equipment according to claim 3, it is characterised in that close to described
Filter core (12) one end of intake valve (8) is additionally provided with receiver (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720855343.5U CN206965383U (en) | 2017-07-14 | 2017-07-14 | A kind of circulating purifying device in 3D printing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720855343.5U CN206965383U (en) | 2017-07-14 | 2017-07-14 | A kind of circulating purifying device in 3D printing equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206965383U true CN206965383U (en) | 2018-02-06 |
Family
ID=61402479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720855343.5U Active CN206965383U (en) | 2017-07-14 | 2017-07-14 | A kind of circulating purifying device in 3D printing equipment |
Country Status (1)
| Country | Link |
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| CN (1) | CN206965383U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108970266A (en) * | 2018-09-21 | 2018-12-11 | 天津镭明激光科技有限公司 | A kind of dust-extraction unit and dust removal method of increasing material manufacturing laser formation equipment |
| CN109248508A (en) * | 2018-11-29 | 2019-01-22 | 北京柯林柯尔科技发展有限公司 | A kind of filter device and method of metal 3D printer |
| CN110434329A (en) * | 2018-05-04 | 2019-11-12 | 吴江中瑞机电科技有限公司 | Not parking replacement filter cartridge construction |
| CN112060579A (en) * | 2020-09-29 | 2020-12-11 | 湖南华曙高科技有限责任公司 | Circulation filtering device for manufacturing three-dimensional object and filtering method thereof |
| CN112569703A (en) * | 2019-09-29 | 2021-03-30 | 广东汉邦激光科技有限公司 | Gas filtering device and three-dimensional printing system |
| CN113413688A (en) * | 2021-06-18 | 2021-09-21 | 威斯坦(厦门)实业有限公司 | Double-filter-element dust removal system applied to small 3D printer and control method thereof |
| CN113877352A (en) * | 2021-11-11 | 2022-01-04 | 四川莱斯特真空科技有限公司 | Dust filter and system thereof |
| CN115501718A (en) * | 2022-10-13 | 2022-12-23 | 南京中科煜宸激光技术有限公司 | Circulating filtering system and filtering method for selective laser melting equipment |
| CN117582752A (en) * | 2024-01-19 | 2024-02-23 | 苏州双恩智能科技有限公司 | Metal 3D printing filtering and purifying circulating system and filtering treatment method |
-
2017
- 2017-07-14 CN CN201720855343.5U patent/CN206965383U/en active Active
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110434329A (en) * | 2018-05-04 | 2019-11-12 | 吴江中瑞机电科技有限公司 | Not parking replacement filter cartridge construction |
| CN108970266A (en) * | 2018-09-21 | 2018-12-11 | 天津镭明激光科技有限公司 | A kind of dust-extraction unit and dust removal method of increasing material manufacturing laser formation equipment |
| CN109248508A (en) * | 2018-11-29 | 2019-01-22 | 北京柯林柯尔科技发展有限公司 | A kind of filter device and method of metal 3D printer |
| CN112569703A (en) * | 2019-09-29 | 2021-03-30 | 广东汉邦激光科技有限公司 | Gas filtering device and three-dimensional printing system |
| CN112060579A (en) * | 2020-09-29 | 2020-12-11 | 湖南华曙高科技有限责任公司 | Circulation filtering device for manufacturing three-dimensional object and filtering method thereof |
| CN112060579B (en) * | 2020-09-29 | 2022-08-16 | 湖南华曙高科技股份有限公司 | Circulating filter device for manufacturing three-dimensional object and filtering method thereof |
| CN113413688A (en) * | 2021-06-18 | 2021-09-21 | 威斯坦(厦门)实业有限公司 | Double-filter-element dust removal system applied to small 3D printer and control method thereof |
| CN113877352A (en) * | 2021-11-11 | 2022-01-04 | 四川莱斯特真空科技有限公司 | Dust filter and system thereof |
| CN115501718A (en) * | 2022-10-13 | 2022-12-23 | 南京中科煜宸激光技术有限公司 | Circulating filtering system and filtering method for selective laser melting equipment |
| CN117582752A (en) * | 2024-01-19 | 2024-02-23 | 苏州双恩智能科技有限公司 | Metal 3D printing filtering and purifying circulating system and filtering treatment method |
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