CN103990800B - A kind of pressure release type paraxonic powder-feeding nozzle device for laser 3D printer - Google Patents
A kind of pressure release type paraxonic powder-feeding nozzle device for laser 3D printer Download PDFInfo
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- CN103990800B CN103990800B CN201410235079.6A CN201410235079A CN103990800B CN 103990800 B CN103990800 B CN 103990800B CN 201410235079 A CN201410235079 A CN 201410235079A CN 103990800 B CN103990800 B CN 103990800B
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- powder
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- 239000000843 powder Substances 0.000 claims abstract description 116
- 238000002347 injection Methods 0.000 claims abstract description 9
- 239000007924 injection Substances 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 229910010293 ceramic material Inorganic materials 0.000 claims description 3
- 239000003870 refractory metal Substances 0.000 claims description 3
- 208000037259 Amyloid Plaque Diseases 0.000 abstract description 6
- 238000007639 printing Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000008901 benefit Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 238000010146 3D printing Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004372 laser cladding Methods 0.000 description 1
- 238000007648 laser printing Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
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- Powder Metallurgy (AREA)
Abstract
The present invention relates to a kind of pressure release type paraxonic powder-feeding nozzle device for laser 3D printer, including the powder drum cavity connected as one and nozzle, the top of described powder drum cavity is provided with end cap, described end-cover axle is fitted with powder feeding adapter in the heart, it is characterized in that, described powder drum cavity includes the direct tube section being sequentially connected with from top to bottom, first conical surface section and the second conical surface section, described nozzle is funneling conical structure, described nozzle includes funnel section and the powder injection hole section connected with described funnel section, described end cap is additionally provided with relief tube, described powder feeding adapter is inserted in described powder drum cavity direct tube section, it is horizontally fixed with multiple tracks pressure release baffle plate on described powder feeding is taken over.The invention has the beneficial effects as follows, decrease the linearity dispersing and increasing powder stream of powder stream, improve the registration of amyloid plaque and hot spot, make the dimensional accuracy of printing workpiece and surface quality all be greatly improved.
Description
Technical field
The present invention relates to laser printing and laser melting and coating technique field, particularly relate to a kind of pressure release type paraxonic powder-feeding nozzle device for laser 3D printer.
Background technology
Laser melting coating is a kind of material surface recovery technique emerging in recent years, is the effective means improving material surface performance, and powder-feeding nozzle is the critical component affecting Laser Cladding Quality.At present, laser melting and coating technique is also widely used in laser 3D printing, in order to improve laser 3D printing shaping part dimensional accuracy and surface quality, gives full play to laser 3D and prints advantage, and Recent study personnel propose to improve the new approaches that powder feeding powder converges.Dust feeder form has coaxial and paraxonic powder feeding etc., according to domestic and international existing research, for paraxonic automatic powder feeding system and apparatus structure, it adopts the one-level without decompression function converge powder feeding or have pressure release but the powder feeding structure of only one-level convergence, after powder sprays from this type of powder feeding structure, there is the problem that powder divergence is big and powder stream linearity is low, cause amyloid plaque and laser facula registration low and converged the impact of degree by powder, powder using efficiency is relatively low, adds production cost.
Summary of the invention
The present invention is directed to above-mentioned the deficiencies in the prior art, it is provided that the pressure release type paraxonic powder-feeding nozzle device for laser 3D printer of a kind of simple in construction.Its registration that can improve amyloid plaque and laser facula and powder using efficiency.
The technical scheme is that a kind of pressure release type paraxonic powder-feeding nozzle device for laser 3D printer, including the powder drum cavity connected as one and nozzle, the top of described powder drum cavity is provided with end cap, described end-cover axle is fitted with powder feeding adapter in the heart, it is characterized in that, described powder drum cavity includes the direct tube section being sequentially connected with from top to bottom, first conical surface section and the second conical surface section, described nozzle is funneling conical structure, described nozzle includes funnel section and the powder injection hole section connected with described funnel section, described end cap is additionally provided with relief tube, described powder feeding adapter is inserted in described powder drum cavity direct tube section, it is horizontally fixed with multiple tracks pressure release baffle plate on described powder feeding is taken over.
The invention has the beneficial effects as follows, powder drum cavity and nozzle are utilized respectively the storage effect of taper seat makes powder obtain two grades of convergences, utilize pressure release baffle plate and relief tube to make the air pressure in powder reduce carry out pressure release and reduce the loss of powder as far as possible, and then decrease the linearity dispersing and increasing powder stream of powder stream, improve the registration of amyloid plaque and hot spot, reduce and print surface of the work because of viscous powder or the powder waste that causes because powder disperses, thus reaching improve powder using efficiency and print the purpose of workpiece dimensional accuracy and surface quality.
On the basis of technique scheme, the present invention can also do following improvement.
Further, the axle center angle respectively 20～60 ° and 5～10 ° of the first conical surface section of described powder drum cavity and the inner conical surface of the second conical surface section and described powder drum cavity, the axle center angle of the funnel section inner conical surface of described nozzle and described powder drum cavity is 15～45 °.
Adopt above-mentioned further scheme to provide the benefit that, rotate suitable inner conical surface tapering, powder can be made to reach good convergence effect, maintained the motion morphology of powder stream simultaneously by the powder injection hole section of described funnel.
Further, described powder drum cavity and nozzle material therefor are refractory metal or high temperature ceramic material.
Above-mentioned further scheme is adopted to provide the benefit that, it is possible to more sturdy and durable.
Further, described pressure release baffle plate lacks structure for circle, and the circle of pressure release baffle plate described in multiple tracks lacks limit interlaced arrangement on described powder feeding is taken over.
Adopting above-mentioned further scheme to provide the benefit that, described pressure release baffle plate and powder drum cavity constitute deflector type pressure release passage.
Further, described relief tube and pressure release baffle plate adopt copper material material.
Adopting above-mentioned further scheme to provide the benefit that, the plasticity utilizing copper material is good, corrosion resistant feature.
Further, described powder feeding adapter is fixed on described end cap by flange, and described relief tube is welded on described end cap, and described powder drum cavity is connected with described nozzle threads.
Adopt above-mentioned further scheme to provide the benefit that, utilize flange and threaded, convenient disassembly.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation of the powder drum cavity of the present invention；
Fig. 3 is the structural representation of the nozzle of the present invention；
Fig. 4 is the pressure release baffle arrangement schematic diagram of the present invention；
Fig. 5 is the use state diagram of the present invention.
In Fig. 1 to Fig. 4,1, powder drum cavity；1-1, direct tube section；1-2, the first conical surface section；1-3, the second conical surface section, 2, nozzle；2-1, funnel section；2-2, powder injection hole section；3, powder feeding adapter；4, relief tube；5, pressure release baffle plate；5-1, circle lack limit；6, end cap；7, powder stream；8, light beam；9, hot spot；10, workpiece.
Detailed description of the invention
Below in conjunction with accompanying drawing, principles of the invention and feature being described, example is served only for explaining the present invention, is not intended to limit the scope of the present invention.
As shown in Fig. 1 to Fig. 4, a kind of pressure release type paraxonic powder-feeding nozzle device for laser 3D printer, including the powder drum cavity 1 connected as one and nozzle 2, the top of described powder drum cavity is provided with end cap 6, described end-cover axle is fitted with powder feeding adapter 3 in the heart, described powder drum cavity 1 includes the direct tube section 1-1 being sequentially connected with from top to bottom, first conical surface section 1-2 and the second conical surface section 1-3, described nozzle 2 is in funneling conical structure, described nozzle 2 includes funnel section 2-1 and the powder injection hole section 2-2 connected with described funnel section 2-1, described end cap 6 is additionally provided with relief tube 4, described powder feeding adapter 3 is inserted in described powder drum cavity 1 direct tube section 1-1, described powder feeding adapter 3 is horizontally fixed with multiple tracks pressure release baffle plate 5.
The axle center angle of the inner conical surface of first conical surface section 1-2 and the second conical surface section 1-3 of described powder drum cavity and the axle center angle of described powder drum cavity respectively 20～60 ° and 5～10 °, the funnel section 2-1 inner conical surface of described nozzle and described powder drum cavity is 15～45 °.
Concrete, the axle center angle of the inner conical surface of first conical surface section 1-2 and the second conical surface section 1-3 of described powder drum cavity and the axle center angle of described powder drum cavity respectively 40 ° and 8 °, the funnel section 2-1 inner conical surface of described nozzle and described powder drum cavity is 30 °.
For each section of size, it is possible to adopt following size range: the length range of the direct tube section 1-1 of described powder drum cavity 1, the first conical surface section 1-2 and the second conical surface section 1-3 is followed successively by: 50～70 millimeters (internal diameter 20～35 millimeters), 15～30 millimeters, 40～50 millimeters；The length range of the funnel section 2-1 and powder injection hole section 2-2 of described nozzle 2 is respectively as follows: 25～40 millimeters and 20～35 millimeters, and the internal diameter of powder injection hole section 2-2 is 1.5～3 millimeters.
Described powder drum cavity 1 and nozzle 2 material therefor are refractory metal or high temperature ceramic material.
Described pressure release baffle plate 5 lacks structure for circle, and the circle of pressure release baffle plate described in multiple tracks lacks limit 5-1 interlaced arrangement in described powder feeding adapter 3.
Described relief tube 4 and pressure release baffle plate 5 adopt copper material material.
Described powder feeding adapter 3 is fixed on described end cap 6 by flange, and described relief tube 4 is welded on described end cap 6, and described powder drum cavity 1 is threadeded with described nozzle 2.
The operation principle of the present invention is: powder enters powder drum cavity 1 by powder feeding adapter 3, powder stream enters the funnel section 2-1 of nozzle through powder drum cavity 1 after one-level converges, powder stream is carried out second time and converges by funnel section 2-1, and the powder injection hole section 2-2 passing through nozzle keeps and restrains the motion morphology after powder stream second time converges, it is achieved the secondary of powder stream is converged.Powder enters after powder drum cavity 1, the deflector type pressure release passage that a part of air-flow is constituted through pressure release baffle plate 5 and powder drum cavity 1 carries out pressure release by relief tube 4, it is to avoid occur in the situation of the powder mass flow not reaching setting in pressure leak process because of the loss of powder.Powder is converged and pressure release effect by two grades, thus reducing the linearity dispersing and increasing powder stream of powder stream, improve the registration of amyloid plaque and laser facula, reduce the powder waste printing the viscous powder of surface of the work or causing because powder disperses, thus improve powder using efficiency and printing workpiece dimensional accuracy and surface quality.
As it is shown in figure 5, be the use state diagram of the present invention.Laser beam 8 is radiated on the surface of workpiece 10 and forms hot spot 9, and powder is accumulated into powder stream 7 by the present invention, just sprays in described hot spot, has reached amyloid plaque and has overlapped with the better of hot spot.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention.
Claims (3)
1. the pressure release type paraxonic powder-feeding nozzle device for laser 3D printer, including the powder drum cavity connected as one and nozzle, the top of described powder drum cavity is provided with end cap, described end-cover axle is fitted with powder feeding adapter in the heart, it is characterized in that, described powder drum cavity includes the direct tube section being sequentially connected with from top to bottom, first conical surface section and the second conical surface section, described nozzle is funneling conical structure, described nozzle includes funnel section and the powder injection hole section connected with described funnel section, described end cap is additionally provided with relief tube, described powder feeding adapter is inserted in described powder drum cavity direct tube section, it is horizontally fixed with multiple tracks pressure release baffle plate on described powder feeding is taken over；
The axle center angle of the axle center angle respectively 20～60 ° and 5～10 ° of the first conical surface section of described powder drum cavity and the inner conical surface of the second conical surface section and described powder drum cavity, the funnel section inner conical surface of described nozzle and described powder drum cavity is 15～45 °；
Described powder drum cavity and nozzle material therefor are refractory metal or high temperature ceramic material；
Described pressure release baffle plate lacks structure for circle, and the circle of pressure release baffle plate described in multiple tracks lacks limit interlaced arrangement on described powder feeding is taken over.
2. the pressure release type paraxonic powder-feeding nozzle device for laser 3D printer according to claim 1, it is characterised in that described relief tube and pressure release baffle plate adopt copper material material.
3. the pressure release type paraxonic powder-feeding nozzle device for laser 3D printer according to claim 1, it is characterized in that, described powder feeding adapter is fixed on described end cap by flange, and described relief tube is welded on described end cap, and described powder drum cavity is connected with described nozzle threads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410235079.6A CN103990800B (en) | 2014-05-29 | 2014-05-29 | A kind of pressure release type paraxonic powder-feeding nozzle device for laser 3D printer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410235079.6A CN103990800B (en) | 2014-05-29 | 2014-05-29 | A kind of pressure release type paraxonic powder-feeding nozzle device for laser 3D printer |
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| Publication Number | Publication Date |
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| CN103990800A CN103990800A (en) | 2014-08-20 |
| CN103990800B true CN103990800B (en) | 2016-07-13 |
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| CN201410235079.6A Active CN103990800B (en) | 2014-05-29 | 2014-05-29 | A kind of pressure release type paraxonic powder-feeding nozzle device for laser 3D printer |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105522150B (en) * | 2015-12-30 | 2017-07-28 | 哈尔滨工业大学 | A kind of uniform feeding head for being applied to semiconductor laser increasing material manufacturing or deposition |
| CN105689712A (en) * | 2016-02-04 | 2016-06-22 | 上海航天精密机械研究所 | Method and device for laser direct manufacturing for metal-matrix composite structural part |
| CN106637193B (en) * | 2016-12-06 | 2019-03-12 | 郭达伟 | A kind of coaxial laser cladding apparatus and packing auger and its cladding method |
| CN110938818B (en) * | 2019-12-20 | 2024-06-07 | 西安交通大学 | Paraxial powder feeding device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101695752A (en) * | 2009-10-27 | 2010-04-21 | 淮海工学院 | Precise laser micro-forming and powder feed method and coaxial laser powder device thereof |
| CN103056363A (en) * | 2011-10-19 | 2013-04-24 | 新加坡科技研究局 | Powder feeding nozzle, components and methods for manufacturing laser assisted additive |
| CN202963453U (en) * | 2012-11-21 | 2013-06-05 | 沈阳航空航天大学 | Laser rapid prototyping coaxial powder conveying nozzle with protective cover |
| CN203890442U (en) * | 2014-05-29 | 2014-10-22 | 烟台泰利汽车模具制造有限公司 | Pressure-relief paraxial powder feed nozzle device for laser 3D (Three-dimensional) printer |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4299157B2 (en) * | 2004-02-03 | 2009-07-22 | トヨタ自動車株式会社 | Powder metal overlay nozzle |
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- 2014-05-29 CN CN201410235079.6A patent/CN103990800B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101695752A (en) * | 2009-10-27 | 2010-04-21 | 淮海工学院 | Precise laser micro-forming and powder feed method and coaxial laser powder device thereof |
| CN103056363A (en) * | 2011-10-19 | 2013-04-24 | 新加坡科技研究局 | Powder feeding nozzle, components and methods for manufacturing laser assisted additive |
| CN202963453U (en) * | 2012-11-21 | 2013-06-05 | 沈阳航空航天大学 | Laser rapid prototyping coaxial powder conveying nozzle with protective cover |
| CN203890442U (en) * | 2014-05-29 | 2014-10-22 | 烟台泰利汽车模具制造有限公司 | Pressure-relief paraxial powder feed nozzle device for laser 3D (Three-dimensional) printer |
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| CN103990800A (en) | 2014-08-20 |
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Address after: 264003, No. 42, pioneering Road, hi tech Zone, Shandong, Yantai Applicant after: YANTAI TAILI AUTOMOBILE TOOLING CO.,LTD. Address before: 264670, No. 42, pioneering Road, hi tech Zone, Shandong, Yantai Applicant before: Yantai Taili Automobile Tooling Co.,Ltd. |
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Inventor after: Sun Junqiang Inventor after: Shao Dongqiang Inventor before: Ji Shengwei Inventor before: Shao Dongqiang |
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Denomination of invention: Pressure relief type paraxial powder feeding spray nozzle device for laser 3D printer Effective date of registration: 20170918 Granted publication date: 20160713 Pledgee: Bank of China Limited by Share Ltd. Yantai branch Pledgor: YANTAI TAILI AUTOMOBILE TOOLING CO.,LTD. Registration number: 2017980000356 |
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Date of cancellation: 20190923 Granted publication date: 20160713 Pledgee: Bank of China Limited by Share Ltd. Yantai branch Pledgor: YANTAI TAILI AUTOMOBILE TOOLING CO.,LTD. Registration number: 2017980000356 |
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Denomination of invention: A pressure relief side shaft powder feeding nozzle device for laser 3D printer Effective date of registration: 20220628 Granted publication date: 20160713 Pledgee: Agricultural Bank of China Limited by Share Ltd. Yantai hi tech Zone subbranch Pledgor: YANTAI TAILI AUTOMOBILE TOOLING CO.,LTD. Registration number: Y2022980009147 |
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Date of cancellation: 20230727 Granted publication date: 20160713 Pledgee: Agricultural Bank of China Limited by Share Ltd. Yantai hi tech Zone subbranch Pledgor: YANTAI TAILI AUTOMOBILE TOOLING CO.,LTD. Registration number: Y2022980009147 |