CN206455176U - A kind of dust feeder of synchronous powdering formula metal laser 3D printing - Google Patents
A kind of dust feeder of synchronous powdering formula metal laser 3D printing Download PDFInfo
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- CN206455176U CN206455176U CN201720120974.2U CN201720120974U CN206455176U CN 206455176 U CN206455176 U CN 206455176U CN 201720120974 U CN201720120974 U CN 201720120974U CN 206455176 U CN206455176 U CN 206455176U
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- powder
- powder feeding
- powdering
- head
- printing
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Abstract
A kind of dust feeder of synchronous powdering formula metal laser 3D printing, including powder-storage bin（1）, powder feeding storehouse（2）, powder feeding band（3）, powdering head（4）, main drive gear（5）, from travelling gear（6）, motor（7）, crossbeam（18）, cladding head（19）And shell（11）.The utility model powder feeding storehouse is fixed on cladding head by rolling bearing and freely rotated, and powder feeding storehouse top is provided with travelling gear, and composition driving gear pair is engaged with another travelling gear, and predetermined action is realized under motor driving；Powder-storage bin transfixion, but keep relative slip with powder feeding storehouse；Powder enters powder feeding band from the outlet of powder feeding orlop and is sent to powdering head under driving wheel drive, and powder uniformly spreads over and powder bed is formed on substrate under gravity；Powdering head is fixed on cladding head together with shell；Powder feeding storehouse and the cladding head coordinated movement of various economic factors are made by program setting, it is ensured that powder bed is all the time in the front of laser facula；Powdering head is internal to use circulating water.
Description
Technical field
The utility model is related to the dust feeder and method of a kind of synchronous powdering formula metal laser 3D printing, and category laser 3D is beaten
Print technical field.
Background technology
At present, metal laser cladding or laser 3D printing course powder supply mode mainly have two kinds, i.e. powdering formula and same
Walk powder feeding formula.Metal dust is mechanically spread very thin one by powdering formula powder feed system in the whole region of cavity
Layer, laser carries out " selective melting " in designated area, and most powder is not utilized；And synchronous powder feeding system formula powder feed system
Metal dust is delivered at laser facula by gas or gravity, melted in powder feeding, most of powder blown away by gas or
Walked from matrix bullet, powder using efficiency is very low.Importantly, under the impact of current-carrying gas and protective gas, bath surface meeting
Occurs substantially disturbance, so as to produce influence to the tissue morphology of cladding layer.In some laser melting coatings or laser metal 3D printing
In pilot study, metal dust is sufficiently expensive and rare, it is necessary to efficiently utilize, and Photocopy Room is all by inert gas shielding, because
The declines of this current-carrying gas and protective gas are so that can ignore.
The content of the invention
The purpose of this utility model is, in order to improve powder supply precision and efficiency, to eliminate current-carrying gas and protective gas
Impact and disturbance to molten bath, improve the precision and efficiency of metal laser 3D printing, reduce powder and waste, the utility model proposes
A kind of dust feeder of synchronous powdering formula metal laser 3D printing.
Realize that the technical solution of the utility model is as follows：A kind of dust feeder bag of synchronous powdering formula metal laser 3D printing
Include powder-storage bin, powder feeding storehouse, powder feeding band, powdering head, main drive gear, from travelling gear, motor, crossbeam, cladding head and outer
Shell.
The powder-storage bin 1 is fixed on cladding head 19 and is provided with powder inlet 10, is slidably matched with powder feeding storehouse 2；It is described
Powder feeding storehouse 2 is fixed on cladding head 19 with being fixedly installed togather from travelling gear 6 by rolling bearing 8；From driving cog
It is provided with defeated powder mouthful 22 on wheel 6 with powder-storage bin 1 to be connected, the powder 9 in powder-storage bin 1 is entered after powder-storage bin 1 by powder inlet 10 and led to
Cross defeated powder mouthful 22 and enter powder feeding storehouse 2, realize the continuous conveying to powder 9；The bottom of powder feeding storehouse 2 sets meal outlet 23, powder 9
The powder feeding band 3 passed through by meal outlet 23 is taken away and is delivered to powdering first 4, and substrate is then uniformly spread under gravity
Powder bed 21 is formed on 17, its width is 1 ~ 10mm；It is described to be intermeshed from travelling gear 6 with main drive gear 5, main transmission
Gear 5 is driven from travelling gear 6 under the driving of motor 7 so as to drive powder feeding storehouse 2 and powder feeding band 3 to be rotated together around cladding head 19,
The coordinated movement of various economic factors is done by program setting and cladding head 19, to ensure that powder bed 21 is being always positioned at the direction of advance of laser facula 20 just
Front；The motor 7 is arranged on crossbeam 18；The powdering first 4 is fixed on cladding head 19 by shell 11, is adopted inside it
Circulating cooling water cooling is used, cooling water 15 enters powdering first 4 by water inlet 13, and flows out powdering first 4 by delivery port 14；Institute
State laser facula 20 to be radiated on powder bed 21, form cladding layer, metal laser 3D printing sample is obtained after printing layer by layer.
Uniform substantial amounts of powder feeding bucket 24 on the powder feeding band 3, plays transport powder and is used, its width is 1 ~ 20mm；It is described to send
Cross direction profiles 1 ~ 10 on powder feeding band 3 of powder hopper 24, its structure can be rounding frustum, tetragonous cone table, bucket shape；The powder feeding band
3 movement velocitys are 0 ~ 1000mm/min；Under the driving of driving wheel 12, powder feeding band 3 can according to be actually needed realize continuous powder feeding,
Change powder feed rate, pause action；The driving wheel 12 and two driven pulley relative positions are adjustable, so as to realize under powder feeding band 3
Angle of slope is adjusted, 30 ° ~ 60 ° of descending angle of regulation range.
The powdering first 4 is hollow cone ring structure, is provided with water inlet 13, delivery port 14；Internal conical bore is female
Angle between line and axis is at 30 ° ~ 60 °, so that adjusting powder sprawls uniformity.
A diameter of 10 ~ the 50mm of the main drive gear 5, main drive gear 5 and from the diameter ratio 1 of travelling gear 6:1~1:5.
The powder feeding storehouse 2 from travelling gear 6 with being fixed together, by being meshed from travelling gear 6 with main drive gear 5
And θ angles are rotated on movement locus with the coordinated movement of various economic factors of cladding head 19, i.e. cladding head 19 under the driving of motor 7, powder feeding storehouse 2 is around molten
First 19 corresponding rotation θ angles are covered, to ensure that powder bed 21 uniformly spreads over the front of laser facula 20 all the time；2 turns of powder feeding storehouse
The dynamic r/min of speed 0 ~ 100.
The inner ring of rolling bearing 8 is fixed on cladding head 19, and outer ring is fitted close with described powder feeding storehouse 2, and is protected
Card powder feeding storehouse 2 can be moved freely.
The powdering first 4 is fixed on cladding head 19 by shell 11, window 16 is provided with shell 11, for main transmission
Gear 5 enters to be meshed with from travelling gear 6.
The powder-storage bin 1, powder feeding storehouse 2, shell 11 use transparent material, in order to observe.
Compared with the prior art, the beneficial effects of the utility model are,
The utility model in synchronous powdering mode, metal dust by powder feeding storehouse, powder feeding band, powdering head gravity effect
Lower spreading over powder even on substrate, reduces the flowing velocity of powder, reduces powder to substrate surface
Impact, reduces the possibility that powder rebounds from substrate, so as to greatly improve powder using efficiency.The driving that the utility model is used
Mechanism, can make powder feeding storehouse and the cladding head coordinated movement of various economic factors, it is ensured that powder bed is being always positioned at laser facula just by program setting
Front；Powder feeding band of the present utility model, continuous powder feeding can be completed under the guidance of driver, changes the action such as powder feed rate,
Also the rotation in powder feeding storehouse can be coordinated to suspend powder feeding（During such as 180 ° of zig zags of cladding head, powder feeding storehouse rotates 180 ° around cladding head, herein
Period powder feeding band suspends powder feeding）To reduce the waste of powder.The powdering head that the utility model is used goes out with substrate distance, cladding head
Optical port and powdering head relative position are adjustable, so that the state that can guarantee that laser facula to focus on is irradiated on metal dust.This
The powder feeding band of utility model is made up of substantial amounts of powder feeding bucket, is completed by the discretization to continuous powder stream to the controllable of metal dust
Powder feeding（Change powder feeding rate, powder bed width, layer thickness etc.）, improve powder using efficiency.
The utility model is applied to the 3D printing process with protective atmosphere room, and the conveying of powder during sprawling with not relating to
And current-carrying gas and protective gas, so as to eliminate the impact and disturbance of gas and powder to molten bath, improve group inside printable layer
Knit structural integrity and directionality.
Brief description of the drawings
Fig. 1 is the utility model overall structure diagram；
Fig. 2 is powder feeding band planar structure schematic diagram；
Fig. 3 is powder feeding band cross-sectional structure schematic diagram；
Fig. 4 is powder feeding storehouse and cladding head coordinated movement of various economic factors schematic diagram；
Wherein：1 is powder-storage bin, and 2 be powder feeding storehouse, and 3 be powder feeding band, and 4 be powdering head, and 5 be main drive gear, and 6 be from transmission
Gear, 7 be motor, and 8 be rolling bearing, and 9 be metal dust, and 10 be powder inlet, and 11 be shell, and 12 be driving wheel, and 13 are
Water inlet, 14 be meal outlet, and 15 be cooling water, and 16 be window, and 17 be substrate, and 18 be crossbeam, and 19 be cladding head, and 20 be laser light
Spot, 21 be that powder sprawls layer, and 22 be defeated powder mouthful, and 23 be meal outlet, and 24 be powder feeding bucket.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings：
A kind of dust feeder structure of synchronous powdering formula metal laser 3D printing of the present embodiment is as shown in figure 1, including storage powder
Storehouse 1, powder feeding storehouse 2, powder feeding band 3, powdering first 4, main drive gear 5, from travelling gear 6, motor 7, crossbeam 18, cladding head 19
With shell 11.
Metal dust 9 uses the superalloy powders of Inconel 625 in the present embodiment, powder to be spherical, particle diameter is 40 ~
100μm.The sample that one block size is 50mm × 50mm × 50mm is prepared by laser 3D printing, scanning pattern uses serpentine, swashs
Optical beam spot diameter 3mm, overlapping rate 50%, sweep speed 300mm/min, laser power 1000W.
As shown in figure 1, metal dust 9 puts into powder-storage bin 1 from powder inlet 10, powder-storage bin 1 is fixed on cladding head 19；Powder
End 9 flows into powder feeding storehouse 2 until filling up by defeated powder mouthful 22；Now powder feeding band 3 remains static, and powder 9 will not be from meal outlet
Outflow；It is 4mm to adjust the distance between powdering first 4 and substrate 17, and spot diameter is 3mm；Start powder feeding band 3, conveying powder 9 to
Powdering first 4, under gravity powder 9 spread over along the first 4 inwall uniform smooth of powdering on substrate 17, formed powder bed
21, the width of powder bed 21 is about 4mm, in the present embodiment powder feed rate 30mm/min, and the width of powder feeding band 3 is 8mm, width
It is 4 to be distributed powder feeding bucket 24, powder feeding bucket structure can for rounding frustum or tetragonous cone table, in the present embodiment using rectangular pyramid
Platform, as shown in Figures 2 and 3.Open laser power supply and produce laser facula 20, irradiation is on powder bed 21 and melts,
Form cladding layer.
According to program setting, short side not light extraction in scanning pattern, to improve right angle turn cladding precision；It is molten by coordinating
First 19 movement locus is covered, i.e., when cladding head 19 turns over 180 ° clockwise makees opposite direction scanning, motor 7 is with nutating gear
5 counterclockwise turn over 180 ° band nutating gears 6 turns over 180 ° clockwise so that powder feeding storehouse 2 around cladding head 19 relative to original
Direction equally turns over 180 ° clockwise, to ensure that powder bed 21 is always positioned at the front of laser facula 20；Powder feeding storehouse 2 is coordinated to transport
Dynamic rail mark, the driving wheel 12 of powder feeding band 3 stops operating in the rotation process of powder feeding storehouse 2, so that powder 9 rests on powder feeding bucket 24
Among, reduce powder and waste.The present embodiment powder feeding storehouse and the cladding head coordinated movement of various economic factors are as shown in Figure 4.
In the present embodiment the velocity of rotation of motor 7 be 30 r/min, a diameter of 20mm of travelling gear 5, travelling gear 5 with
The diameter ratio of travelling gear 6 is 1:2.
Powdering first 4 is fixed on cladding head 19 by shell 11, and powder-storage bin 1, powdering first 4, shell 11 are fixed during work
Motionless, travelling gear 6, powder feeding storehouse 2, powder feeding band 3 are rotated around cladding head 19, and powder feeding band 3 makees circulating under the drive of driving wheel 12
It is dynamic；First 4 material of powdering can strengthen cooling effect with copper alloy, and inner hollow, recirculated cooling water 15 enters from water inlet 13, from
Delivery port 14 flows out, and cooling water flow is for 20L/min in the present embodiment.
Claims (7)
1. a kind of dust feeder of synchronous powdering formula metal laser 3D printing, it is characterised in that described device includes powder-storage bin, sent
Powder cabin, powder feeding band, powdering head, main drive gear, from travelling gear, motor, crossbeam, cladding head and shell；The storage powder
Storehouse is fixed on cladding head and is provided with powder inlet, is slidably matched with powder feeding storehouse；The powder feeding storehouse from travelling gear with fixing
It is installed together, and is fixed on by rolling bearing on cladding head；Defeated powder mouthful and powder-storage bin phase are provided with from travelling gear
Even, the powder in powder-storage bin is entered after powder-storage bin by defeated powder mouthful into powder feeding storehouse by powder inlet, is realized to the continuous of powder
Conveying；The powder feeding orlop portion sets meal outlet, and the powder feeding band that powder is passed through by meal outlet is taken away and is delivered to powdering head,
Then uniformly spread under gravity and powder bed is formed on substrate, its width is 1 ~ 10mm；It is described from travelling gear with
Main drive gear is intermeshed, and main drive gear drives from travelling gear to drive powder feeding storehouse and powder feeding band under motor driving
Rotated together around cladding head, the coordinated movement of various economic factors is done by program setting and cladding head, to ensure that powder bed is always positioned at laser facula
The front of direction of advance；The motor is arranged on crossbeam；Powdering head is fixed on cladding head by shell, in it
Portion uses circulating cooling water cooling, and cooling water enters powdering head by water inlet, and flows out powdering head by delivery port；It is described to swash
Light hot spot is radiated on powder bed, forms cladding layer, and metal laser 3D printing sample is obtained after printing layer by layer.
2. the dust feeder of a kind of synchronous powdering formula metal laser 3D printing as described in claim 1, it is characterised in that described
Powder feeding takes uniform substantial amounts of powder feeding bucket, plays transport powder and is used, its width is 1 ~ 20mm；The powder feeding bucket takes horizontal stroke in powder feeding
To distribution 1 ~ 10, its structure can be rounding frustum, tetragonous cone table, bucket shape；The powder feeding band movement velocity is 0 ~ 1000mm/
min；Under the driving of driving wheel, powder feeding band can realize that continuous powder feeding, change powder feed rate, pause are acted according to being actually needed；
The driving wheel and two driven pulley relative positions are adjustable, so as to realize powder feeding band descending angular adjustment, descending angular adjustment model
Enclose 30 ° ~ 60 °.
3. the dust feeder of a kind of synchronous powdering formula metal laser 3D printing as described in claim 1, it is characterised in that described
Powdering head is hollow cone ring structure, is provided with water inlet, delivery port；Angle between internal conical bore bus and axis
At 30 ° ~ 60 °, so that adjusting powder sprawls uniformity.
4. the dust feeder of a kind of synchronous powdering formula metal laser 3D printing as described in claim 1, it is characterised in that described
A diameter of 10 ~ the 50mm of main drive gear, main drive gear and from travelling gear diameter ratio 1:1~1:5.
5. the dust feeder of a kind of synchronous powdering formula metal laser 3D printing as described in claim 1, it is characterised in that described
Powder feeding storehouse with being fixed together from travelling gear, by from travelling gear be meshed with main drive gear and motor driving under with
The cladding head coordinated movement of various economic factors, i.e. cladding head rotate θ angles on movement locus, and powder feeding storehouse accordingly rotates θ angles around cladding head, to protect
Card powder bed uniformly spreads over the front of laser facula all the time；The r/min of powder feeding storehouse velocity of rotation 0 ~ 100.
6. the dust feeder of a kind of synchronous powdering formula metal laser 3D printing as described in claim 1, it is characterised in that described
Rolling bearing inner ring is fixed on cladding head, and outer ring is fitted close with described powder feeding storehouse, and ensures that powder feeding storehouse can be moved
Freely.
7. the dust feeder of a kind of synchronous powdering formula metal laser 3D printing as described in claim 1, it is characterised in that described
Powdering head is fixed on cladding head by shell, and window is provided with shell, for main drive gear enter with from travelling gear
It is meshed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720120974.2U CN206455176U (en) | 2017-02-10 | 2017-02-10 | A kind of dust feeder of synchronous powdering formula metal laser 3D printing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720120974.2U CN206455176U (en) | 2017-02-10 | 2017-02-10 | A kind of dust feeder of synchronous powdering formula metal laser 3D printing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206455176U true CN206455176U (en) | 2017-09-01 |
Family
ID=59694433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720120974.2U Withdrawn - After Issue CN206455176U (en) | 2017-02-10 | 2017-02-10 | A kind of dust feeder of synchronous powdering formula metal laser 3D printing |
Country Status (1)
| Country | Link |
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| CN (1) | CN206455176U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109055929A (en) * | 2018-07-09 | 2018-12-21 | 江苏峰钛激光科技有限公司 | A kind of coaxial powder-feeding laser 3D printing laser melting coating head |
| CN110202783A (en) * | 2019-07-15 | 2019-09-06 | 江西省科学院应用物理研究所 | A kind of device using sonic cleaning 3D printer nozzle |
-
2017
- 2017-02-10 CN CN201720120974.2U patent/CN206455176U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109055929A (en) * | 2018-07-09 | 2018-12-21 | 江苏峰钛激光科技有限公司 | A kind of coaxial powder-feeding laser 3D printing laser melting coating head |
| CN110202783A (en) * | 2019-07-15 | 2019-09-06 | 江西省科学院应用物理研究所 | A kind of device using sonic cleaning 3D printer nozzle |
| CN110202783B (en) * | 2019-07-15 | 2023-02-10 | 江西省科学院应用物理研究所 | Device for cleaning 3D printer nozzle by adopting ultrasonic waves |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170901 Effective date of abandoning: 20180501 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20170901 Effective date of abandoning: 20180501 |