CN105328183A - Inert gas circulation and purification device for three-dimensional metal printer - Google Patents
Inert gas circulation and purification device for three-dimensional metal printer Download PDFInfo
- Publication number
- CN105328183A CN105328183A CN201510633093.6A CN201510633093A CN105328183A CN 105328183 A CN105328183 A CN 105328183A CN 201510633093 A CN201510633093 A CN 201510633093A CN 105328183 A CN105328183 A CN 105328183A
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- Prior art keywords
- gas
- inert gas
- metal
- vacuum forming
- printing equipment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/003—Apparatus, e.g. furnaces
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Filtering Materials (AREA)
Abstract
The invention provides an inert gas circulation and purification device for a three-dimensional metal printer. The inert gas circulation and purification device comprises a gas filter, a heat exchanger, a gas circulation pump and a vacuum molding bin. The vacuum molding bin is connected with the gas filter through a waste gas outlet pipeline. The gas filter is further connected with the heat exchanger. The heat exchanger is connected with a gas inlet of the gas circulation pump through a gas delivery pipeline. A gas outlet of the gas circulation pump is connected with the vacuum molding bin. By means of the circulation and purification device, the vacuum molding bin of the three-dimensional metal printer can be protected to work safely and stably, inert gas in the vacuum molding bin can be used effectively and circularly, cost is saved, and the structure is simple.
Description
Technical field
The invention belongs to metal 3 D-printing equipment technical field, be specifically related to a kind of inert gas circulating purifying device of metal 3 D-printing equipment.
Background technology
3 D Printer, also claim three-dimensional printer (3DPrinter, be called for short 3DP) to be a kind of technique of rapid shaping, adopt the mode layering of piling up layer by layer to produce threedimensional model, its running is similar to conventional printer.Metal three-dimensional printer needs to use the metal of inert gas to melting to protect, and present metal three-dimensional printer is all disposable utilization to inert gas, and use rear direct discharge, consumption is very large.
Summary of the invention
For solving the problem that existing metal three-dimensional printer inert gas can not recycle; the present invention proposes a kind of inert gas circulating purifying device of metal 3 D-printing equipment; this circulating purifying device can not only protect the work of the vacuum forming storehouse energy safety and stability of metal three-dimensional printer; and inert gas in vacuum forming storehouse can be utilized by Efficient Cycle; save cost, and structure is simple.
Technical scheme of the present invention is achieved in that
A kind of inert gas circulating purifying device of metal 3 D-printing equipment, comprise pneumatic filter, heat exchanger, gas circulator and vacuum forming storehouse, described vacuum forming storehouse is connected with described pneumatic filter by waste gas outlet pipe, described pneumatic filter is also connected with described heat exchanger, described heat exchanger is connected by the air inlet of gas pipeline with described gas circulator, and the gas outlet of described gas circulator is connected with described vacuum forming storehouse.
Further, also comprise inert gas inlet duct, described inert gas inlet duct is connected with described vacuum forming.
Further, described inert gas inlet duct comprises inert gas air inlet short tube and the first gas trap, and described inert gas air inlet short tube is connected with the gas outlet of described gas circulator, and described first gas trap is arranged on described inert gas air inlet short tube.
Further, described waste gas outlet pipe is provided with butterfly valve, above the described waste gas outlet pipe between described butterfly valve and described vacuum forming storehouse, is provided with vacuum extractor.
Further, described vacuum extractor comprises vavuum pump and vacuum extraction valve, and described vavuum pump is connected with described waste gas outlet pipe, and described vacuum extraction valve is arranged between described vavuum pump and described waste gas outlet pipe.
Further, described heat exchanger is connected by air communicating pipe with described pneumatic filter.
Further, gas pressure sensor and oxygen sensor is provided with in described vacuum forming storehouse.
Beneficial effect of the present invention:
The inert gas circulating purifying device of metal 3 D-printing equipment of the present invention, the inert gas do not utilized in vacuum forming storehouse enters pneumatic filter by the Impurity removal in gas by waste gas outlet pipe, enter heat exchanger again gas temperature is reduced, then enter gas pipeline and enter vacuum forming storehouse by gas circulator and carry out secondary utilization.When not enough in vacuum forming bin, fresh inert gas can be carried to enter in vacuum forming storehouse by inert gas inlet duct.In order to compact conformation and conveying gas convenience, inert gas inlet duct is arranged on the gas outlet of gas circulator.Vacuum forming storehouse, before input inert gas, first needs vacuum forming storehouse to vacuumize, at this moment needs the butterfly valve above by waste gas outlet pipe to close, then vacuum extractor work, vacuum forming storehouse is evacuated, after hours, closes vacuum extractor and then open butterfly valve.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the inert gas circulating purifying device of metal 3 D-printing equipment of the present invention.
Accompanying drawing indicates: 1, heat exchanger, and 2, pneumatic filter, 3, gas pipeline, 4, waste gas outlet pipe, 5, vacuum forming storehouse, 6, gas circulator, 7, inert gas air inlet short tube, 8, the first gas trap, 9, butterfly valve, 10, vavuum pump, 11, vacuum extraction valve, 12, air communicating pipe, 13, control motor.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
With reference to Fig. 1, a kind of inert gas circulating purifying device of metal 3 D-printing equipment, comprises pneumatic filter 1, heat exchanger 2, gas circulator 6 and vacuum forming storehouse 5.Vacuum forming storehouse 5 is connected with pneumatic filter 1 by waste gas outlet pipe 4.Heat exchanger 2 is connected by air communicating pipe 12 with pneumatic filter 1.Heat exchanger 2 is connected with the air inlet of gas circulator 6 by gas pipeline 3.The gas outlet of gas circulator 6 is connected with vacuum forming storehouse 5.Further, when inert gas pressure in vacuum forming bin 5 is not enough, fresh inert gas is inputted by inert gas inlet duct.Inert gas inlet duct comprises inert gas air inlet short tube 7 and the first gas trap 8.Inert gas air inlet short tube 7 is connected with the gas outlet of gas circulator 6, and the first gas trap 8 is arranged on inert gas air inlet short tube 7.
In the present embodiment, waste gas outlet pipe 4 is provided with butterfly valve 9, the waste gas outlet pipe 4 between butterfly valve 9 and vacuum forming storehouse 5 is provided with vacuum extractor above, and butterfly valve 9 is also connected with control motor 13.Vacuum extractor comprises vavuum pump 10 and vacuum extraction valve 11, and vavuum pump 10 is connected with waste gas outlet pipe 4, and vacuum extraction valve 11 is arranged between vavuum pump 10 and waste gas outlet pipe 4.In order to detect in real time the gas in vacuum forming storehouse 5, in vacuum forming storehouse 5, be provided with gas pressure sensor and oxygen sensor.First gas trap 8, butterfly valve 9, gas pressure sensor and oxygen sensor are all connected with PLC (not shown in FIG.).
The inert gas do not utilized in vacuum forming storehouse 5 enters pneumatic filter 2 by the Impurity removal in gas by waste gas outlet pipe 4, enter heat exchanger 1 again gas temperature is reduced, then enter gas pipeline 3 and enter vacuum forming storehouse 5 by gas circulator 6 and carry out secondary utilization.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. the inert gas circulating purifying device of a metal 3 D-printing equipment, it is characterized in that, comprise pneumatic filter, heat exchanger, gas circulator and vacuum forming storehouse, described vacuum forming storehouse is connected with described pneumatic filter by waste gas outlet pipe, described pneumatic filter is also connected with described heat exchanger, described heat exchanger is connected by the air inlet of gas pipeline with described gas circulator, and the gas outlet of described gas circulator is connected with described vacuum forming storehouse.
2. the inert gas circulating purifying device of metal 3 D-printing equipment according to claim 1, is characterized in that, also comprise inert gas inlet duct, and described inert gas inlet duct is connected with described vacuum forming.
3. the inert gas circulating purifying device of metal 3 D-printing equipment according to claim 2, it is characterized in that, described inert gas inlet duct comprises inert gas air inlet short tube and the first gas trap, described inert gas air inlet short tube is connected with the gas outlet of described gas circulator, and described first gas trap is arranged on described inert gas air inlet short tube.
4. the inert gas circulating purifying device of metal 3 D-printing equipment according to claim 1, it is characterized in that, described waste gas outlet pipe is provided with butterfly valve, above the described waste gas outlet pipe between described butterfly valve and described vacuum forming storehouse, is provided with vacuum extractor.
5. the inert gas circulating purifying device of metal 3 D-printing equipment according to claim 4, it is characterized in that, described vacuum extractor comprises vavuum pump and vacuum extraction valve, described vavuum pump is connected with described waste gas outlet pipe, and described vacuum extraction valve is arranged between described vavuum pump and described waste gas outlet pipe.
6. the inert gas circulating purifying device of metal 3 D-printing equipment according to claim 1 and 2, it is characterized in that, described heat exchanger is connected by air communicating pipe with described pneumatic filter.
7. the inert gas circulating purifying device of the metal 3 D-printing equipment according to claim 1,2 or 4, is characterized in that, is provided with gas pressure sensor and oxygen sensor in described vacuum forming storehouse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510633093.6A CN105328183A (en) | 2015-09-29 | 2015-09-29 | Inert gas circulation and purification device for three-dimensional metal printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510633093.6A CN105328183A (en) | 2015-09-29 | 2015-09-29 | Inert gas circulation and purification device for three-dimensional metal printer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105328183A true CN105328183A (en) | 2016-02-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510633093.6A Pending CN105328183A (en) | 2015-09-29 | 2015-09-29 | Inert gas circulation and purification device for three-dimensional metal printer |
Country Status (1)
| Country | Link |
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| CN (1) | CN105328183A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105835363A (en) * | 2016-04-23 | 2016-08-10 | 中北大学 | Desktop type 3D printer case |
| CN107695349A (en) * | 2017-08-28 | 2018-02-16 | 大族激光科技产业集团股份有限公司 | Inert gas homestat and balance method for 3D printing |
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| CN201446232U (en) * | 2009-07-10 | 2010-05-05 | 西北工业大学 | Inert atmosphere control device for enclosed circulating purification |
| CN103071796A (en) * | 2013-01-23 | 2013-05-01 | 西安铂力特激光成形技术有限公司 | Selective laser melting (SLM) atmosphere protection system |
| DE202013009787U1 (en) * | 2013-11-29 | 2013-12-16 | Slm Solutions Gmbh | Plant with a workpiece production section |
| CN203820889U (en) * | 2014-05-09 | 2014-09-10 | 张百成 | SLM (selective laser melting) powder laying and atmosphere circulation protection integrated device |
| CN104353832A (en) * | 2014-10-24 | 2015-02-18 | 华南理工大学 | Method and equipment of sealed chamber atmosphere deoxygenization and circulating purification for metal 3D printer |
| CN104493492A (en) * | 2014-12-12 | 2015-04-08 | 华南理工大学 | Selective laser melting (SLM) and milling compound machining equipment and selective laser melting and milling compound machining method |
| CN204486780U (en) * | 2014-12-11 | 2015-07-22 | 广东汉唐量子光电科技有限公司 | A kind of gas shield structure of metal powder laser rapidform machine |
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2015
- 2015-09-29 CN CN201510633093.6A patent/CN105328183A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201446232U (en) * | 2009-07-10 | 2010-05-05 | 西北工业大学 | Inert atmosphere control device for enclosed circulating purification |
| CN103071796A (en) * | 2013-01-23 | 2013-05-01 | 西安铂力特激光成形技术有限公司 | Selective laser melting (SLM) atmosphere protection system |
| DE202013009787U1 (en) * | 2013-11-29 | 2013-12-16 | Slm Solutions Gmbh | Plant with a workpiece production section |
| CN203820889U (en) * | 2014-05-09 | 2014-09-10 | 张百成 | SLM (selective laser melting) powder laying and atmosphere circulation protection integrated device |
| CN104353832A (en) * | 2014-10-24 | 2015-02-18 | 华南理工大学 | Method and equipment of sealed chamber atmosphere deoxygenization and circulating purification for metal 3D printer |
| CN204486780U (en) * | 2014-12-11 | 2015-07-22 | 广东汉唐量子光电科技有限公司 | A kind of gas shield structure of metal powder laser rapidform machine |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105835363A (en) * | 2016-04-23 | 2016-08-10 | 中北大学 | Desktop type 3D printer case |
| CN107695349A (en) * | 2017-08-28 | 2018-02-16 | 大族激光科技产业集团股份有限公司 | Inert gas homestat and balance method for 3D printing |
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Application publication date: 20160217 |