CN203890442U - Pressure-relief paraxial powder feed nozzle device for laser 3D (Three-dimensional) printer - Google Patents
Pressure-relief paraxial powder feed nozzle device for laser 3D (Three-dimensional) printer Download PDFInfo
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- CN203890442U CN203890442U CN201420284528.1U CN201420284528U CN203890442U CN 203890442 U CN203890442 U CN 203890442U CN 201420284528 U CN201420284528 U CN 201420284528U CN 203890442 U CN203890442 U CN 203890442U
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- powder
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- pressure release
- feeding
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- 239000000843 powder Substances 0.000 title claims abstract description 122
- 239000000463 material Substances 0.000 claims description 12
- 238000002347 injection Methods 0.000 claims description 8
- 239000007924 injection Substances 0.000 claims description 8
- 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
- 230000009286 beneficial effect Effects 0.000 abstract description 7
- 239000006185 dispersion Substances 0.000 abstract 1
- 238000005507 spraying Methods 0.000 abstract 1
- 208000037259 Amyloid Plaque Diseases 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method 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
- 238000005516 engineering process Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 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
- 238000010586 diagram 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
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Abstract
The utility model relates to a pressure-relief paraxial powder feed nozzle device for a laser 3D (Three-dimensional) printer. The pressure-relief paraxial powder feed nozzle device comprises a powder cylinder cavity and a nozzle which are connected into a whole, wherein an end cover is arranged on the top of the powder cylinder cavity, and a powder feed connection pipe is inserted at the axis of the end cover. The pressure-relief paraxial powder feed nozzle device is characterized in that the powder cylinder cavity comprises a straight cylinder section, a first conical surface section and a second conical surface section which are sequentially connected from top to bottom, the nozzle is in a funnel-type conical structure and comprises a funnel section and a powder spraying hole section communicated with the funnel section, a pressure relief pipe is also arranged on the end cover, the powder feed connection pipe is inserted into the straight cylinder section of the powder cylinder cavity and a plurality of pressure-relief baffles are horizontally fixed on the powder feed connection pipe. The pressure-relief paraxial powder feed nozzle device disclosed by the utility model has the beneficial effects that the dispersion of a powder beam is reduced, the straightness degree of the powder beam is increased, and the coincidence of pink spots and light spot is improved so that the dimensional accuracy and surface quality of a printed workpiece are greatly improved.
Description
Technical field
The utility model relates to Laser Printing and laser melting and coating technique field, relates in particular to a kind of pressure release type paraxonic powder-feeding nozzle device for laser 3D printer.
Background technology
Laser melting coating is emerging in recent years a kind of material surface recovery technique, be the effective means of improving material surface performance, and powder-feeding nozzle is the key part that affects Laser Cladding Quality.At present, laser melting and coating technique is widely application in laser 3D printing also, in order to improve laser 3D printing shaping part dimensional precision 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.Powder conveyer 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 one-level without decompression function to converge powder feeding or has pressure release but the powder feeding structure of only having one-level to converge, when powder is from the ejection of this type of powder feeding structure, there is the large and low problem of powder stream linearity of powder divergency, cause amyloid plaque and laser facula overlap ratio low and be subject to powder to converge the impact of degree, powder using efficiency is relatively low, has increased production cost.
Utility model content
The utility model, for above-mentioned the deficiencies in the prior art, provides a kind of pressure release type paraxonic powder-feeding nozzle device for laser 3D printer simple in structure.It can improve overlap ratio and the powder using efficiency of amyloid plaque and laser facula.
The technical scheme that the utility model solves the problems of the technologies described above is as follows: a kind of pressure release type paraxonic powder-feeding nozzle device for laser 3D printer, comprise the powder cylinder cavity and the nozzle that connect as one, the top of described powder cylinder cavity is provided with end cap, described end-cover axle is fitted with in the heart powder feeding and takes over, it is characterized in that, described powder cylinder cavity comprises the direct tube section connecting successively from top to bottom, the first conical surface section and the second conical surface section, described nozzle is funneling conical structure, described nozzle comprises funnel section and the powder injection hole section being communicated with described funnel section, on described end cap, be also provided with relief tube, described powder feeding is taken over and is inserted in described powder cylinder cavity direct tube section, on described powder feeding is taken over, level is fixed with multiple tracks pressure release baffle plate.
The beneficial effects of the utility model are, powder cylinder cavity and nozzle utilize respectively the effect of taking in of cone surface to make powder obtain secondary and converge, utilize pressure release baffle plate and relief tube to make the air pressure in powder reduce the loss of carrying out pressure release and reducing powder as far as possible, and then reduced the linearity of dispersing and increase powder stream of powder stream, improved the overlap ratio of amyloid plaque and hot spot, reduce and print workpiece surface because of sticky powder or because of powder, disperse the powder causing and waste, thereby reach the object that improves powder using efficiency and print workpiece dimensional precision and surface quality.
On the basis of technique scheme, the utility model can also be done following improvement.
Further, the axle center angle of the first conical surface section of described powder cylinder cavity and the inner conical surface of the second conical surface section and described powder cylinder cavity is respectively 20～60 ° and 5～10 °, and the axle center angle of the funnel section inner conical surface of described nozzle and described powder cylinder cavity is 15～45 °.
Adopt the beneficial effect of above-mentioned further scheme to be, rotate suitable inner conical surface tapering, can make powder reach good convergence effect, by the powder injection hole section of described funnel, kept the motion morphology of powder stream simultaneously.
Further, described powder cylinder cavity and nozzle material therefor are refractory metal or high temperature ceramic material.
Adopt the beneficial effect of above-mentioned further scheme to be, can be more sturdy and durable.
Further, described pressure release baffle plate lacks structure for circle, and the circle of pressure release baffle plate lacks limit staggered arrangement on described powder feeding is taken over described in multiple tracks.
Adopt the beneficial effect of above-mentioned further scheme to be, described pressure release baffle plate and powder cylinder cavity have formed deflector type pressure release passage.
Further, described relief tube and pressure release baffle plate adopt copper material material.
Adopt the beneficial effect of above-mentioned further scheme to be, utilize the plasticity-of copper material good, corrosion resistant feature.
Further, described powder feeding is taken over and is fixed on described end cap by flange, and described relief tube is welded on described end cap, and described powder cylinder cavity is connected with described nozzle threads.
Adopt the beneficial effect of above-mentioned further scheme to be, utilize flange and be threaded, convenient disassembly.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of powder cylinder cavity of the present utility model;
Fig. 3 is the structural representation of nozzle of the present utility model;
Fig. 4 is pressure release baffle arrangement schematic diagram of the present utility model;
Fig. 5 is use state graph of the present utility model.
At Fig. 1 in Fig. 4,1, powder cylinder 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 is taken over; 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.
Embodiment
Below in conjunction with accompanying drawing, principle of the present utility model and feature are described, example, only for explaining the utility model, is not intended to limit scope of the present utility model.
If Fig. 1 is to as shown in Fig. 4, a kind of pressure release type paraxonic powder-feeding nozzle device for laser 3D printer, comprise the powder cylinder cavity 1 and the nozzle 2 that connect as one, the top of described powder cylinder cavity is provided with end cap 6, described end-cover axle is fitted with in the heart powder feeding and takes over 3, described powder cylinder cavity 1 comprises the direct tube section 1-1 connecting successively from top to bottom, the first conical surface section 1-2 and the second conical surface section 1-3, described nozzle 2 is funneling conical structure, the powder injection hole section 2-2 that described nozzle 2 comprises funnel section 2-1 and is communicated with described funnel section 2-1, on described end cap 6, be also provided with relief tube 4, described powder feeding is taken over 3 and is inserted in described powder cylinder cavity 1 direct tube section 1-1, in the described powder feeding level on 3 of taking over, be fixed with multiple tracks pressure release baffle plate 5.
The axle center angle of the first conical surface section 1-2 of described powder cylinder cavity and the inner conical surface of the second conical surface section 1-3 and described powder cylinder cavity is respectively 20～60 ° and 5～10 °, and the axle center angle of the funnel section 2-1 inner conical surface of described nozzle and described powder cylinder cavity is 15～45 °.
Concrete, the axle center angle of the first conical surface section 1-2 of described powder cylinder cavity and the inner conical surface of the second conical surface section 1-3 and described powder cylinder cavity is respectively 40 ° and 8 °, and the axle center angle of the funnel section 2-1 inner conical surface of described nozzle and described powder cylinder cavity is 30 °.
With regard to each section of size, can adopt following size range: the length range of the direct tube section 1-1 of described powder cylinder cavity 1, the first conical surface section 1-2 and the second conical surface section 1-3 is followed successively by: 50～70 millimeters (20～35 millimeters of internal diameters), 15～30 millimeters, 40～50 millimeters; The length range of the funnel section 2-1 of described nozzle 2 and powder injection hole section 2-2 is respectively: 25～40 millimeters and 20～35 millimeters, the internal diameter of powder injection hole section 2-2 is 1.5～3 millimeters.
Described powder cylinder cavity 1 and nozzle 2 material therefors 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 lacks limit 5-1 and takes over staggered arrangement on 3 in described powder feeding described in multiple tracks.
Described relief tube 4 and pressure release baffle plate 5 adopt copper material material.
Described powder feeding is taken over 3 and is fixed on described end cap 6 by flange, and described relief tube 4 is welded on described end cap 6, and described powder cylinder cavity 1 is threaded with described nozzle 2.
Principle of work of the present utility model is: powder is taken over 3 by powder feeding and entered powder cylinder cavity 1, powder stream enters the funnel section 2-1 of nozzle through powder cylinder cavity 1 after one-level converges, funnel section 2-1 converges for the second time to powder stream, and keep and restrain the motion morphology after powder stream converges for the second time by the powder injection hole section 2-2 of nozzle, realize the secondary of powder stream is converged.Powder enters after powder cylinder cavity 1, and a part of air-flow carries out pressure release through the deflector type pressure release passage of pressure release baffle plate 5 and powder cylinder cavity 1 formation by relief tube 4, has avoided appearing at the situation that does not reach the powder mass flow of setting in pressure leak process because of the loss of powder.Powder converges and pressure release effect by secondary, thereby reduce the linearity of dispersing and increase powder stream of powder stream, improve the overlap ratio of amyloid plaque and laser facula, reduce and print the sticky powder of workpiece surface or because of powder, disperse the powder causing and waste, thereby improved powder using efficiency and printed workpiece dimensional precision and surface quality.
As shown in Figure 5, be use state graph of the present utility model.Laser beam 8 is radiated on the surface of workpiece 10 and forms hot spot 9, and powder is pooled powder stream 7 by the utility model, just in time sprays in described hot spot, has reached amyloid plaque and has overlapped with the better of hot spot.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (6)
1. the pressure release type paraxonic powder-feeding nozzle device for laser 3D printer, comprise the powder cylinder cavity and the nozzle that connect as one, the top of described powder cylinder cavity is provided with end cap, described end-cover axle is fitted with in the heart powder feeding and takes over, it is characterized in that, described powder cylinder cavity comprises the direct tube section connecting successively from top to bottom, the first conical surface section and the second conical surface section, described nozzle is funneling conical structure, described nozzle comprises funnel section and the powder injection hole section being communicated with described funnel section, on described end cap, be also provided with relief tube, described powder feeding is taken over and is inserted in described powder cylinder cavity direct tube section, on described powder feeding is taken over, level is fixed with multiple tracks pressure release baffle plate.
2. the pressure release type paraxonic powder-feeding nozzle device for laser 3D printer according to claim 1, it is characterized in that, the axle center angle of the first conical surface section of described powder cylinder cavity and the inner conical surface of the second conical surface section and described powder cylinder cavity is respectively 20～60 ° and 5～10 °, and the axle center angle of the funnel section inner conical surface of described nozzle and described powder cylinder cavity is 15～45 °.
3. the pressure release type paraxonic powder-feeding nozzle device for laser 3D printer according to claim 1 and 2, is characterized in that, described powder cylinder cavity and nozzle material therefor are refractory metal or high temperature ceramic material.
4. the pressure release type paraxonic powder-feeding nozzle device for laser 3D printer according to claim 1 and 2 is characterized in that, described pressure release baffle plate lacks structure for circle, and the circle of pressure release baffle plate lacks limit staggered arrangement on described powder feeding is taken over described in multiple tracks.
5. the pressure release type paraxonic powder-feeding nozzle device for laser 3D printer according to claim 1, is characterized in that, described relief tube and pressure release baffle plate adopt copper material material.
6. 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 is taken over and is fixed on described end cap by flange, and described relief tube is welded on described end cap, and described powder cylinder cavity is connected with described nozzle threads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420284528.1U CN203890442U (en) | 2014-05-29 | 2014-05-29 | Pressure-relief paraxial powder feed nozzle device for laser 3D (Three-dimensional) printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420284528.1U CN203890442U (en) | 2014-05-29 | 2014-05-29 | Pressure-relief paraxial powder feed nozzle device for laser 3D (Three-dimensional) printer |
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| Publication Number | Publication Date |
|---|---|
| CN203890442U true CN203890442U (en) | 2014-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420284528.1U Active CN203890442U (en) | 2014-05-29 | 2014-05-29 | Pressure-relief paraxial powder feed nozzle device for laser 3D (Three-dimensional) printer |
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| CN (1) | CN203890442U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103990800A (en) * | 2014-05-29 | 2014-08-20 | 烟台泰利汽车模具制造有限公司 | Pressure relief type paraxial powder feeding spray nozzle device for laser 3D printer |
| CN105839103A (en) * | 2016-05-16 | 2016-08-10 | 浙江工业大学 | Window type air escape type wide-belt powder feeding nozzle |
| CN112831781A (en) * | 2020-12-31 | 2021-05-25 | 中钢集团邢台机械轧辊有限公司 | High-flux laser cladding material preparation and powder feeding system |
-
2014
- 2014-05-29 CN CN201420284528.1U patent/CN203890442U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103990800A (en) * | 2014-05-29 | 2014-08-20 | 烟台泰利汽车模具制造有限公司 | Pressure relief type paraxial powder feeding spray nozzle device for laser 3D printer |
| CN103990800B (en) * | 2014-05-29 | 2016-07-13 | 烟台泰利汽车模具股份有限公司 | A kind of pressure release type paraxonic powder-feeding nozzle device for laser 3D printer |
| CN105839103A (en) * | 2016-05-16 | 2016-08-10 | 浙江工业大学 | Window type air escape type wide-belt powder feeding nozzle |
| CN112831781A (en) * | 2020-12-31 | 2021-05-25 | 中钢集团邢台机械轧辊有限公司 | High-flux laser cladding material preparation and powder feeding system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: YANTAI TAILI AUTOMOBILE MOULD CO., LTD. Free format text: FORMER NAME: YANTAI TAILI AUTOMOBILE TOOLING CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 264003, No. 42, pioneering Road, hi tech Zone, Shandong, Yantai Patentee after: YANTAI TAILI AUTOMOTIVE MOLD MANUFACTURING CO.,LTD. Address before: 264670, No. 42, pioneering Road, hi tech Zone, Shandong, Yantai Patentee before: Yantai thyrite automobile die Manufacturing Co., Ltd |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Pressure relief type paraxial powder feeding spray nozzle device for laser 3D printer Effective date of registration: 20150709 Granted publication date: 20141022 Pledgee: Bank of China, Limited by Share Ltd, Yantai branch Pledgor: YANTAI TAILI AUTOMOTIVE MOLD MANUFACTURING CO.,LTD. Registration number: 2015990000563 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20160708 Granted publication date: 20141022 Pledgee: Bank of China, Limited by Share Ltd, Yantai branch Pledgor: YANTAI TAILI AUTOMOTIVE MOLD MANUFACTURING CO.,LTD. Registration number: 2015990000563 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Pressure relief type paraxial powder feeding spray nozzle device for laser 3D printer Effective date of registration: 20160712 Granted publication date: 20141022 Pledgee: Bank of China, Limited by Share Ltd, Yantai branch Pledgor: YANTAI TAILI AUTOMOTIVE MOLD MANUFACTURING CO.,LTD. Registration number: 2016990000592 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: He Weidong Inventor after: Shao Dongqiang Inventor before: Ji Shengwei Inventor before: Shao Dongqiang |
|
| CB03 | Change of inventor or designer information | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20170901 Granted publication date: 20141022 Pledgee: Bank of China, Limited by Share Ltd, Yantai branch Pledgor: YANTAI TAILI AUTOMOTIVE MOLD MANUFACTURING CO.,LTD. Registration number: 2016990000592 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Pressure relief type paraxial powder feeding spray nozzle device for laser 3D printer Effective date of registration: 20170918 Granted publication date: 20141022 Pledgee: Bank of China, Limited by Share Ltd, Yantai branch Pledgor: YANTAI TAILI AUTOMOTIVE MOLD MANUFACTURING CO.,LTD. Registration number: 2017980000356 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20190923 Granted publication date: 20141022 Pledgee: Bank of China, Limited by Share Ltd, Yantai branch Pledgor: YANTAI TAILI AUTOMOTIVE MOLD MANUFACTURING CO.,LTD. Registration number: 2017980000356 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |