CN105293102B - The quantitative powder feeder of SLM 3D printers - Google Patents
The quantitative powder feeder of SLM 3D printers Download PDFInfo
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- CN105293102B CN105293102B CN201510823527.9A CN201510823527A CN105293102B CN 105293102 B CN105293102 B CN 105293102B CN 201510823527 A CN201510823527 A CN 201510823527A CN 105293102 B CN105293102 B CN 105293102B
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- rotor
- powder
- outer barrel
- slm
- printers
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Abstract
The invention discloses a kind of quantitative powder feeder of SLM 3D printers,Powder-wiping plate can reciprocatingly slide and be positioned in forming box,Vertical sandbox including fixed installation,Outer barrel and rotor,The outer barrel is fixedly installed in the exit of vertical sandbox lower end,What rotor can rotate is inserted in outer barrel,Wherein,Formed with least one opening groove on rotor circumference lateral wall,The space for accommodating powder is formed between the open slot and outer medial wall of the tube,Formed with powder inlet and meal outlet on outer barrel periphery wall,Wherein powder inlet and the outlet of vertical sandbox lower end,The meal outlet of outer barrel is just directly over the slip route of powder-wiping plate,One in the selectable powder inlet and meal outlet with outer barrel of open slot of rotor connects,The powder-wiping plate moves back and forth being capable of ganged rotor synchronous rotary,The present invention is simple in construction,Small volume,It is easy to quantitative powder feeding,Powder sending quantity can adjust,Versatility is high.
Description
Technical field
The present invention relates to a kind of SLM 3D printers powder feeder, the quantitative powder feeding of more particularly to a kind of SLM 3D printers
Device.
Background technology
SLM 3D printer powder feeder methods are divided into parallel powder case powder feeding and the vertical major class of powder case powder feeding two substantially, wherein：
Parallel powder case powder feeding sets a powder feeding case to be parallel with forming box, and forming box declines an operating mode unit, accordingly sent
Powder case rises an operating mode unit, and the powder that will be above shaping plane by powder-wiping plate is scraped into forming box, redundance feeding overflow
Powder tank, reclaimed, its advantage is stable working, can quantify control powder sending quantity, and shortcoming disposably adds for needs in powder case
Enough powder, addition can not be supplemented in work, whole formingspace volume is big, is not easy protective atmosphere holding, adds one and send
Powder case, improve complete machine original cost.
The advantages of vertical powder case is that formingspace is small, can add material powder at any time, and shortcoming is powder feeding mechanism complexity, is processed
Difficulty, it is not easy to realize quantitative powder feeding.
The content of the invention
In order to make up above deficiency, the invention provides a kind of quantitative powder feeder of SLM 3D printers, the SLM 3D printings
The quantitative powder feeder of machine is simple in construction, can realize quantitative powder feeding, easy to use.
The present invention in order to solve its technical problem used by technical scheme be：A kind of quantitative powder feeding of SLM 3D printers
Device, powder-wiping plate can reciprocatingly slide and be positioned in forming box, include vertical sandbox, outer barrel and the rotor of fixed installation, described outer
Cylinder is fixedly installed in the exit of vertical sandbox lower end, and what rotor can rotate is inserted in outer barrel, wherein, on the outside of rotor circumference
Formed with least one opening groove on wall, the space for accommodating powder, outer barrel are formed between the open slot and outer medial wall of the tube
Go out on periphery wall formed with powder inlet and meal outlet, wherein powder inlet and the outlet of vertical sandbox lower end, outer barrel
Powder mouth just directly over the slip route of powder-wiping plate, the open slot of rotor it is selectable with the powder inlet and meal outlet of outer barrel
A connection, the powder-wiping plate moves back and forth being capable of ganged rotor synchronous rotary.
As the further improvement of invention, it can be dismantled in the open slot of the rotor and be installed with volume adjustment
Block.
As the further improvement of invention, the rotor includes rotor body and floating end cap, the rotor body circle of column
Open slot is formed on all lateral walls, floating end cap is fixedly installed in rotor body axial direction both ends, and completely enclosed rotor body is opened
The space axial direction both ends for being used to store up powder that mouth groove is formed with outer medial wall of the tube.
As the further improvement of invention, the structure that ganged rotor synchronous rotary is capable of in the powder-wiping plate reciprocating motion is：
A coaxial gear ring is fixed with rotor, movable scraping plate is provided with rack, and the rack just engages with gear ring to be connected.
As the further improvement of invention, be evenly distributed with three open slots on the rotor circumference lateral wall, gear ring with
Connected between rotor by a freewheel clutch.
As the further improvement of invention, the rotor circumference lateral wall is in the side wall between two adjacent open slots
It is installed with sealed connection block.
As the further improvement of invention, the rotor circumference lateral wall is provided with an open slot.
As the further improvement of invention, the rotor circumference lateral wall is located at open slot both sides opening position and is installed with
Floating scraping blade, the floating scraping blade are elastic tight against outer ring madial wall all the time.
As the further improvement of invention, the rotor circumference lateral wall is provided with the slot radially extended, floating scraping blade
Can slide and plug and in slot, be additionally provided with elastic component in slot, elastic component both ends respectively tight against slot bottom surface and floating scraping blade,
Floating scraping blade end forms the arc-shaped structure matched with outer medial wall of the tube.
The method have the benefit that：The present invention is set by setting rotor and outer barrel on rotor circumference lateral wall
Open slot is used to store up powder, is rotated by powder-wiping plate rotor driven, that realizes open slot connects powder and powder feeding, and each powder sending quantity is by opening
Groove volume determines, realizes quantitative powder feeding, can also be by adjusting tune of the open slot volume realization for different product powder sending quantity
Section, simple in construction, small volume of the invention, it is easy to quantitative powder feeding, powder sending quantity can adjust, and versatility is high.
Brief description of the drawings
Fig. 1 is parallel powder case powder feeding schematic diagram in the prior art；
Fig. 2 is vertical powder case powder feeding schematic diagram in the prior art；
Fig. 3 sheets are the first structural perspective of invention；
Fig. 4 is the first structure powder feeding schematic diagram of the invention；
Fig. 5 is the powder falling structure principle chart of the first structure of the invention；
Fig. 6 is another revolution linkage structure schematic diagram of rotor of the first structure of the invention；
Fig. 7 is the rotor structure schematic diagram of the first structure of the invention；
Fig. 8 is the rotor structure schematic diagram of second of structure of the invention.
Embodiment
Embodiment：A kind of quantitative powder feeder of SLM 3D printers, powder-wiping plate 1, which can reciprocatingly slide, is positioned at forming box 17
It is interior, including the vertical sandbox 2 of fixed installation, outer barrel 3 and rotor 4, the outer barrel 3 be fixedly installed in going out for the vertical lower end of sandbox 2
At mouthful, what rotor 4 can rotate is inserted in outer barrel 3, wherein, formed with least one opening groove on the periphery wall of rotor 4
5, the space for accommodating powder is formed between the open slot 5 and the madial wall of outer barrel 3, formed with entering on the periphery wall of outer barrel 3
Powder mouth 6 and meal outlet 7, wherein powder inlet 6 and the outlet of the vertical lower end of sandbox 2, the meal outlet 7 of outer barrel 3, which is just located at, scrapes powder
Directly over the slip route of plate 1, the selectable company with the powder inlet of outer barrel 36 and meal outlet 7 of open slot 5 of rotor 4
Logical, the powder-wiping plate 1 moves back and forth being capable of the synchronous rotary of ganged rotor 4.
During work, powder-wiping plate 1 reciprocatingly slides, and rotor driven 4 rotates a certain angle while powder-wiping plate 1 reciprocatingly slides,
When powder-wiping plate 1 slides towards the molding space direction of forming box 17, the open slot 5 of rotor 4 departs from the meal outlet 7 of outer barrel 3,
Connect, realized into powder and storage powder with the powder inlet 6 of outer barrel 3, when the reverse slide of powder-wiping plate 1 to the meal outlet 7 of outer barrel 3 is empty backwards to being molded
Between side when, the open slot 5 of rotor 4 just goes to connect with the meal outlet of outer barrel 37 to be departed from powder inlet 6, and now split is from rotor
Fall in 4 open slots 5, just drop immediately ahead of movable scraping plate, movable scraping plate scrapes powder when being slided to molding space direction
Enter into molding space, realize powder feeding, this is simple in construction, can realize quantitative powder feeding, and powder sending quantity is accurate.
It can be dismantled in the open slot 5 of the rotor 4 and be installed with a volume adjustment block 8, by installing different volumes
Volume adjustment block 8 adjust storage powder space between the open slot 5 of rotor 4 and the madial wall of outer barrel 3, and then realize the tune of powder sending quantity
Section, is applicable the powder feeding of different product, easy to use, versatile.
The rotor 4 includes rotor body 9 and floating end cap 10, is formed and opened on the periphery wall of rotor body 9 of column
Mouth groove 5, floating end cap 10 are fixedly installed in 9 axial both ends of rotor body, and the open slot 5 of completely enclosed rotor body 9 and outer barrel 3
The space axial direction both ends for being used to store up powder that madial wall is formed, avoid powder from being dropped from 9 axial both ends of rotor body, simple in construction,
It is easy to fabricate.
The powder-wiping plate 1, which moves back and forth, is capable of the structure of the synchronous rotary of ganged rotor 4 and is：It is fixed with together on rotor 4
The gear ring 11 of axle, movable scraping plate are provided with rack 12, and the rack 12 just engages connection with gear ring 11, passes through rack 12 and gear ring
11 engagement is realized is converted into rotation by horizontal movement, can also be in addition by chain and gear or passes through crank connecting link
Mechanism can also realize that this is the equivalent constructions of this patent.
Three open slots 5 are evenly distributed with the periphery wall of rotor 4, by one surpassing between gear ring 11 and rotor 4
More clutch 13 connects, and movable scraping plate drives 11 intermittent rotary in the same direction of gear ring, realizes three sequential rotation powder feedings of open slot 5.
The periphery wall of rotor 4 is installed with sealed connection in the side wall between two adjacent open slots 5
Block 14, for sealing, avoid going here and there between open slot 5 two-by-two powder, ensure that each powder sending quantity is consistent.
The periphery wall of rotor 4 is provided with an open slot 5, and 4 positive and negative intermittent reciprocating of rotor rotates, and realization connects powder
With powder feeding alternating movement.
The periphery wall of rotor 4 is located at the both sides opening position of open slot 5 and is installed with floating scraping blade 15, the floating
All the time elasticity tight against outer ring madial wall, the space for avoiding split from entering beyond the open slot 5 of rotor 4, avoids Lou powder to scraping blade 15.
The periphery wall of rotor 4 is provided with the slot that radially extends, and floating scraping blade 15, which can slide, to be plugged and slot
It is interior, elastic component 16 is additionally provided with slot, the both ends of elastic component 16 are respectively tight against slot bottom surface and floating scraping blade 15, the end of floating scraping blade 15
Portion forms the arc-shaped structure matched with the madial wall of outer barrel 3.
Claims (8)
1. a kind of quantitative powder feeder of SLM 3D printers, powder-wiping plate (1), which can reciprocatingly slide, to be positioned in forming box (17), and it is special
Sign is：Vertical sandbox (2), outer barrel (3) and rotor (4), the outer barrel including fixed installation are fixedly installed in vertical sandbox
The exit of lower end, what rotor can rotate is inserted in outer barrel, wherein, opened on rotor circumference lateral wall formed with least one
Mouthful groove (5), forms the space for accommodating powder between the open slot and outer medial wall of the tube, on outer barrel periphery wall formed with
Powder inlet (6) and meal outlet (7), wherein powder inlet and the outlet of vertical sandbox lower end, the meal outlet of outer barrel, which is just located at, to be scraped
Directly over the slip route of powder plate, one in the selectable powder inlet and meal outlet with outer barrel of open slot of rotor connects,
The powder-wiping plate move back and forth can ganged rotor synchronous rotary, the powder-wiping plate moves back and forth being capable of ganged rotor synchronous rotary
Structure be：A coaxial gear ring (11) is fixed with rotor, movable scraping plate is provided with rack (12), the rack and gear ring
Just engagement connection.
2. the quantitative powder feeder of SLM 3D printers as claimed in claim 1, it is characterized in that：Can in the open slot of the rotor
Dismounting is installed with a volume adjustment block (8).
3. the quantitative powder feeder of SLM 3D printers as claimed in claim 1, it is characterized in that：The rotor includes rotor body
(9) open slot and floating end cap (10), is formed on the rotor body periphery wall of column, floating end cap is fixedly installed in rotor
Body axial direction both ends, and the space axial direction two for being used to store up powder that completely enclosed rotor body open slot is formed with outer medial wall of the tube
End.
4. the quantitative powder feeder of SLM 3D printers as claimed in claim 1, it is characterized in that：On the rotor circumference lateral wall
It is even that three open slots are distributed with, connected between gear ring and rotor by a freewheel clutch (13).
5. the quantitative powder feeder of SLM 3D printers as claimed in claim 4, it is characterized in that：The rotor circumference lateral wall is located at
It is installed with side wall between two adjacent open slots and is tightly connected block (14).
6. the quantitative powder feeder of SLM 3D printers as claimed in claim 1, it is characterized in that：Set on the rotor circumference lateral wall
There is an open slot.
7. the quantitative powder feeder of SLM 3D printers as claimed in claim 6, it is characterized in that：The rotor circumference lateral wall is located at
Open slot both sides opening position is installed with floating scraping blade (15), and the floating scraping blade is elastic tight against outer ring madial wall all the time.
8. the quantitative powder feeder of SLM 3D printers as claimed in claim 7, it is characterized in that：Set on the rotor circumference lateral wall
There is the slot radially extended, floating scraping blade, which can slide, to be plugged with being additionally provided with elastic component (16), elastic component two in slot, in slot
End forms the arc-shaped structure matched with outer medial wall of the tube tight against slot bottom surface and floating scraping blade, floating scraping blade end respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510823527.9A CN105293102B (en) | 2015-11-24 | 2015-11-24 | The quantitative powder feeder of SLM 3D printers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510823527.9A CN105293102B (en) | 2015-11-24 | 2015-11-24 | The quantitative powder feeder of SLM 3D printers |
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| Publication Number | Publication Date |
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| CN105293102A CN105293102A (en) | 2016-02-03 |
| CN105293102B true CN105293102B (en) | 2018-03-02 |
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| CN201510823527.9A Active CN105293102B (en) | 2015-11-24 | 2015-11-24 | The quantitative powder feeder of SLM 3D printers |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107310926A (en) * | 2017-06-26 | 2017-11-03 | 常州华通新立地板有限公司 | A kind of drawing mechanism |
| CN107298320B (en) * | 2017-07-19 | 2018-11-20 | 同向（佛山）精密机械有限公司 | A kind of high molecular pump |
| CN107720316A (en) * | 2017-10-21 | 2018-02-23 | 长沙远达华信息科技有限公司 | A kind of 3D printing material delivery system |
| CN108380880A (en) * | 2018-05-04 | 2018-08-10 | 吴江中瑞机电科技有限公司 | 3D printer powder feeding structure |
| CN110615295A (en) * | 2018-06-19 | 2019-12-27 | 曹荣华 | Dynamic powder supply device |
| WO2020018088A1 (en) * | 2018-07-18 | 2020-01-23 | Hewlett-Packard Development Company, L.P. | Fluid flow devices for printers |
| CN109500395A (en) * | 2018-12-28 | 2019-03-22 | 江苏永年激光成形技术有限公司 | The metal laser melting external powder feeding mechanism of equipment side wall of 3D printing |
| CN109795110B (en) * | 2019-01-31 | 2024-01-30 | 苏州西帝摩三维打印科技有限公司 | Bidirectional quantitative powder supplying and paving device for additive manufacturing |
| CN113859996B (en) * | 2021-11-09 | 2023-03-14 | 湖南博溥立材料科技有限公司 | Production of compound conductive coating is with raw materials interpolation equipment that area upset was emptyd |
| CN117160173B (en) * | 2023-10-16 | 2024-05-17 | 中国矿业大学 | Air purification system and purification method for return air roadway |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101885062B (en) * | 2010-07-28 | 2012-05-02 | 武汉滨湖机电技术产业有限公司 | Rapid shaping automatic powder feeding and spreading device |
| FR2984191B1 (en) * | 2011-12-20 | 2014-01-10 | Michelin Soc Tech | MACHINE AND PROCESS FOR ADDITIVE MANUFACTURE OF POWDER |
| JP2014000768A (en) * | 2012-06-20 | 2014-01-09 | Brother Ind Ltd | Three-dimensional modeling apparatus |
| CN203681954U (en) * | 2013-10-22 | 2014-07-02 | 叶建华 | Rotary high-efficiency quantitative feeding mechanism applied to food processing |
| CN103691947B (en) * | 2013-12-10 | 2015-10-28 | 华南理工大学 | A kind of selective laser fusing SLM equipment power spreading device and paving powder method |
| CN205240791U (en) * | 2015-11-24 | 2016-05-18 | 江苏永年激光成形技术有限公司 | SLM3D printer ration powder feeder |
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Denomination of invention: SLM 3D printer quantitative powder feeder Effective date of registration: 20220901 Granted publication date: 20180302 Pledgee: Jiangsu SINOSURE technology microfinance Co.,Ltd. Pledgor: JIANGSU YONGNIAN LASER FORMING TECH. CO.,LTD. Registration number: Y2022980014215 |