CN109500395A - The metal laser melting external powder feeding mechanism of equipment side wall of 3D printing - Google Patents
The metal laser melting external powder feeding mechanism of equipment side wall of 3D printing Download PDFInfo
- Publication number
- CN109500395A CN109500395A CN201811623371.XA CN201811623371A CN109500395A CN 109500395 A CN109500395 A CN 109500395A CN 201811623371 A CN201811623371 A CN 201811623371A CN 109500395 A CN109500395 A CN 109500395A
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- Prior art keywords
- powder
- powder feeding
- side wall
- channel
- laser
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
-
- 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
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/20—Direct sintering or melting
- B22F10/28—Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
-
- 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
- B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
- B22F12/50—Means for feeding of material, e.g. heads
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
-
- 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
- B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
- B22F12/60—Planarisation devices; Compression devices
- B22F12/67—Blades
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Abstract
The invention discloses a kind of metal laser melting external powder feeding mechanisms of equipment side wall of 3D printing, including Laser stove, powder feeding channel, store up powder bottle, powder extraction mechanism and powder supply mechanism, the Laser stove inside bottom surface forms forming platform, the sealing of powder feeding channel is fixedly installed on Laser stove longitudinal side wall, powder feeding channel is located at Laser stove lateral ends and forms powder inlet, powder inlet is fixedly connected with what the bottleneck of storage powder bottle can be dismantled, powder feeding channel is located at Laser stove inner opposite end and forms meal outlet, meal outlet is just located at one upper side of forming platform of Laser stove, powder extraction mechanism is installed on the meal outlet in powder feeding channel, the meal outlet in powder feeding channel can be closed and be opened to powder extraction mechanism, powder supply mechanism can reciprocatingly slide from Laser stove side to the other side in the horizontal direction, powder supply mechanism is equipped with for scraping the scraper of powder and can trigger the triggering block of powder extraction mechanism , powder feeding mechanism of the invention not will cause the pollution to laser optical system, and also without geometrical interference, flow of powder is smooth, easy for installation.
Description
Technical field
The present invention relates to a kind of 3D printing equipment, in particular to a kind of metal laser melting equipment side wall of 3D printing is external to be sent
Powder mechanism.
Background technique
The powder feeding mechanism of metal 3D printing SLM device is its important component.The powder feeding mechanism of existing metal SLM device,
It is divided into built-in powder feeding and external top cover powder feeding (upper powder feeding) two ways.Built-in powder feeding uses powder feeding cylinder powder feeding mechanism, occupies empty
Between it is big, mechanism is complicated, manufacturing cost is high, and can not continued powder in forming process；External top cover powder feeding is most common powder feeding dress
It sets, occupies little space, it can be with continued powder, but due to being placed on outside forming box top cover, not only close to accurate in forming process
Laser optical apparatus and galvanometer, when adding metal powder, powder is becomed easily infected by, or even causes short circuit, and in installation site
Easily with its component interference, design by more limitation.
Summary of the invention
In order to make up the above deficiency, the present invention provides a kind of external powder feeding machines of the metal laser melting equipment side wall of 3D printing
Structure, the metal laser melting external powder feeding mechanism of equipment side wall of the 3D printing not will cause the pollution to laser optical system, several yet
What connection relates to, and flow of powder is smoothly and easy for installation.
The present invention is to solve technical solution used by its technical problem: a kind of metal laser melting equipment of 3D printing
The external powder feeding mechanism of side wall, including Laser stove, powder feeding channel, storage powder bottle, powder extraction mechanism and powder supply mechanism, the Laser stove inside
Bottom surface forms forming platform, and the sealing of powder feeding channel is fixedly installed on Laser stove longitudinal side wall, and powder feeding channel is located at outside Laser stove
Side one end forms powder inlet, and powder inlet is fixedly connected with what the bottleneck of storage powder bottle can be dismantled, and powder feeding channel is located in Laser stove
Side one end forms meal outlet, and meal outlet is just located at one upper side of forming platform of Laser stove, installs on the meal outlet in powder feeding channel
There is powder extraction mechanism, the meal outlet in powder feeding channel can be closed and be opened to powder extraction mechanism, and powder supply mechanism can be in the horizontal direction from sharp
Light furnace side reciprocatingly slides to the other side, and powder supply mechanism is equipped with for scraping the scraper of powder and can trigger the triggering of powder extraction mechanism
Block.
As the further improvement of invention, the powder feeding channel is by the inclination powder feeding section that is located above and underlying perpendicular
Direct sending powder Duan Zucheng.
As the further improvement of invention, 100 ° of -140 ° of angles are formed between the inclination powder feeding section and vertical powder feeding section.
As the further improvement of invention, the inclination powder feeding in powder feeding channel is realized in the Laser stove one side wall by flange
Section is fixedly mounted, and is sealed between powder feeding channel and laser furnace sidewall by sealing ring.
As the further improvement of invention, the powder extraction mechanism is equipped with lower shut-off valve, is equipped with and cuts on powder feeding channel
Only valve.
As the further improvement of invention, vibration device is additionally provided on the lateral wall of the powder feeding channel.
As the further improvement of invention, fixing clamp is equipped with sound insulation between the vibration device and powder feeding channel lateral wall
Pad.
As the further improvement of invention, be additionally provided with out powder guide pad on the Laser stove, it is described go out powder guide pad just with
The meal outlet position of powder feeding channel end is pairs of, is formed with inclined guide surface on powder guide pad out, and the scraper of power spreading device is proper
It can move to out immediately below powder guide pad.
As the further improvement of invention, the powder extraction mechanism includes sliding part and elastic component, and the sliding part being capable of edge
What the power spreading device direction of motion reciprocatingly slided is installed on the inner sidewall of Laser stove side, and being formed on sliding part can be logical with powder feeding
The powder channel of the meal outlet face connection in road, elastic component provide the meal outlet for keeping powder channel and powder feeding channel to sliding part
Elastic holding force in misaligned state, the triggering block on power spreading device can make powder channel thereon tight against sliding part sidewall
It is connected to the meal outlet face in powder feeding channel.
It as the further improvement of invention, states and is additionally provided with guide rail on the inside of Laser stove, power spreading device is equipped with sliding block, the cunning
Block is sheathed on the outside of guide rail along what guide rail extending direction slided.
The method have the benefit that: powder feeding mechanism of the invention is neither inside shaping box, also not in forming box
Top cover outside, but outside shaping box side wall.Powder feeding mechanism of the invention not will cause the pollution to laser optical system,
Also without geometrical interference, powder feeding channel and forming box side wall are at an angle, with the installation of sharp flow of powder and powder feeding mechanism,
The present invention is also mounted with ultrasonic transducer or high frequency oscillator on powder feeding box outer wall, is adjusted according to different powder flowbilitys
Frequency also can guarantee smooth powder feeding even for the bad light metal powder of certain mobility (titanium, aluminium etc.).
Detailed description of the invention
Fig. 1 is main view of the invention；
Fig. 2 is sectional view along A-A in Fig. 1；
Fig. 3 is B-B direction cross-sectional view in Fig. 1
Fig. 4 is the portion C enlarged drawing in Fig. 3；
Fig. 5 is storage the first structural perspective of powder bottle；
Fig. 6 is storage second of structural perspective of powder bottle；
Fig. 7 is storage the third structural perspective of powder bottle；
Fig. 8 is the first structural schematic diagram of powder feeding channel；
Fig. 9 is second of powder feeding channel structural schematic diagram；
Figure 10 is the third structural schematic diagram of powder feeding channel.
Specific embodiment
Embodiment: a kind of metal laser melting external powder feeding mechanism of equipment side wall of 3D printing, including Laser stove 1, powder feeding lead to
Road 10, storage powder bottle 14, powder extraction mechanism 8 and powder supply mechanism, 1 inside bottom surface of Laser stove form forming platform 2, powder feeding channel 10
Sealing is fixedly installed on Laser stove longitudinal side wall 11, and powder feeding channel 10 is located at 1 lateral ends of Laser stove and forms powder inlet, into powder
Mouth is fixedly connected with what the bottleneck of storage powder bottle 14 can be dismantled, and powder feeding channel 10 is located at 1 inner opposite end of Laser stove and forms meal outlet,
Meal outlet is just located at 2 one upper side of forming platform of Laser stove 1, is equipped with powder extraction mechanism 8 on the meal outlet in powder feeding channel 10, out
Powder mechanism 8 can close and open the meal outlet in powder feeding channel 10, powder supply mechanism can in the horizontal direction from 1 side of Laser stove to
The other side reciprocatingly slides, and powder supply mechanism is equipped with for scraping the scraper 6 of powder and can trigger the triggering block 5 of powder extraction mechanism 8.
External powder feeding mechanism is mounted on the longitudinal side wall 11 vertical with powdering direction；Parallel with powdering direction is vertical
The section of inside sidewalls, powder feeding channel 10 can be rectangle, pipe type etc.；Storage powder bottle 14 be mounted on powder feeding channel 10 into powder
On mouth, for storing powder 7, section can be circle, polygon, square, and diameter can be 100mm~400mm, minor diameter
Bottle can grasp installation, and major diameter bottle can promote installation with elevator or crane；Laser-galvanometer system 19 is mounted on Laser stove
On 1 top surface 18；
When laser fusing forming, powder flows into powder extraction mechanism 8 by powder feeding channel 10 from storage powder bottle 14, works as powder supply mechanism
It moves in the horizontal direction to after the designated position on right side, triggering block 5 contacts powder extraction mechanism 8, and triggers to it, powder feeding channel
Powder outflow in 10, is stacked at the 7 of powder supply mechanism left side (on 1 work top of Laser stove), when powder supply mechanism is transported to the left
When dynamic powdering, the triggering block 5 of powder supply mechanism is detached from powder extraction mechanism 8, and powder extraction mechanism 8 is closed, and powder stops flowing, while scraper 6
By in the passage to 2 surface of forming platform of formation cylinder of pile of grounds 7, laser-galvanometer system transmitting laser melts powder
Forming, scraper 6 are most preferably mounted in powdering structure by height adjustment mechanism, realize the function of its adjustment height.
The external powder feeding mechanism is mounted on 1 longitudinal side wall 11 of Laser stove, not will cause to the laser on 1 top surface of Laser stove
The pollution of optical system, also without geometrical interference.
The powder feeding channel 10 is made of the inclination powder feeding section being located above and underlying vertical powder feeding section.It is tilted
Powder feeding section and forming box side wall are at an angle, are conducive to flow of powder and powder feeding mechanism installation, and vertical powder feeding section is conducive to
Guarantee that powder goes out powder position and concentrates out powder, avoids generating dust in Laser stove 1.
100 ° of -140 ° of angles 20 are formed between the inclination powder feeding section and vertical powder feeding section.
Realize that the inclination powder feeding section in powder feeding channel 10 is fixedly mounted by flange 15 in 1 one side wall of Laser stove, powder feeding
It is sealed between 1 side wall of channel 10 and Laser stove by sealing ring 12.The structure is convenient for the fixed installation in powder feeding channel 10, protects simultaneously
The sealing between 1 side wall of Laser stove and powder feeding mechanism is demonstrate,proved, avoids that gas leakage occurs.
The powder extraction mechanism 8 is equipped with lower shut-off valve 9, is equipped with shut-off valve 13 on powder feeding channel 10.It is adjusting or is repairing
When managing powder extraction mechanism 8, lower shut-off valve 9 can be closed as needed, in case powder is fallen down.On the channel of external side wall powder feeding mechanism
Shut-off valve 13 is installed, when upper shut-off valve 13 is closed, the installation of storage powder bottle 14 can be carried out, when installing for storage powder bottle 14
Afterwards, upper shut-off valve 13 is opened.
It is additionally provided with vibration device 16 on 10 lateral wall of powder feeding channel, vibration can be adjusted according to different powder flowbilitys
Dynamic frequency also can guarantee smooth powder feeding, vibration device even for the bad light metal powder of certain mobility (titanium, aluminium etc.)
16 can be ultrasonic transducer or high frequency oscillator.
Fixing clamp is equipped with sound insulating pad 17 between 10 lateral wall of the vibration device 16 and powder feeding channel.Avoid vibration device 16
Noise is generated with the collision of powder feeding channel 10 when vibration.
Powder guide pad, out powder of the powder guide pad out just with 10 end of powder feeding channel are additionally provided with out on the Laser stove 1
Mouth position is pairs of, is formed with inclined guide surface on powder guide pad out, and the scraper 6 of power spreading device be able to move to out powder guiding
Immediately below block.By the inclined guide surface of guide pad, powder is sent to 6 front of scraper of power spreading device, it will be whole convenient for scraper 6
Powder is blown off, guarantees powder sending quantity.
The powder extraction mechanism 8 includes sliding part and elastic component, and the sliding part can be reciprocal along the power spreading device direction of motion
Sliding is installed on 1 side inner sidewall of Laser stove, and being formed on sliding part can connect with the meal outlet face in powder feeding channel 10
Logical powder channel, elastic component is provided to sliding part keeps the meal outlet of powder channel and powder feeding channel 10 to be in misaligned state
Elastic holding force, the triggering block 5 on power spreading device can make powder channel and powder feeding channel 10 thereon tight against sliding part sidewall
Meal outlet face connection.The elastic force of elastic component keeps the dislocation of sliding part powder channel, and powder channel is blocked, powdering is avoided
When have powder outflow, after powdering mechanism kinematic is to designated position, the triggering block 5 on power spreading device resists sliding part, makes its gram
It takes elastic holding force and moves horizontally, its powder channel is connected to the meal outlet face in powder feeding channel 10 at this time, realizes powder
Outflow, when powder flows out to a certain amount, powder is scraped in powder supply mechanism horizontal movement, and sliding part resets under the effect of elastic component elastic force
Powder channel is sealed, accurate powder feeding is realized.
Guide rail 3 is additionally provided on the inside of the Laser stove 1, power spreading device is equipped with sliding block 4, and the sliding block 4 is along 3 side of extension of guide rail
3 outside of guide rail is sheathed on to sliding.Guide rail 3 for realizing scraper plate slide-and-guide.
Claims (10)
1. a kind of metal laser melting external powder feeding mechanism of equipment side wall of 3D printing, it is characterised in that: including Laser stove (1), send
Powder channel (10), storage powder bottle (14), powder extraction mechanism (8) and powder supply mechanism, the Laser stove inside bottom surface form forming platform
(2), powder feeding channel sealing is fixedly installed on Laser stove longitudinal side wall (11), and powder feeding channel is located at Laser stove lateral ends and is formed
Powder inlet, powder inlet are fixedly connected with what the bottleneck of storage powder bottle can be dismantled, and powder feeding channel is located at Laser stove inner opposite end and is formed
Meal outlet, meal outlet are just located at one upper side of forming platform of Laser stove, are equipped with powder extraction mechanism on the meal outlet in powder feeding channel,
The meal outlet in powder feeding channel can be closed and be opened to powder extraction mechanism, and powder supply mechanism can be in the horizontal direction from Laser stove side to another
Side reciprocatingly slides, and powder supply mechanism is equipped with for scraping the scraper (6) of powder and can trigger the triggering block (5) of powder extraction mechanism.
2. the metal laser melting external powder feeding mechanism of equipment side wall of 3D printing as described in claim 1, it is characterized in that: described send
Powder channel is made of the inclination powder feeding section being located above and underlying vertical powder feeding section.
3. the metal laser melting external powder feeding mechanism of equipment side wall of 3D printing as claimed in claim 2, it is characterized in that: described incline
100 ° of -140 ° of angles (20) are formed between oblique powder feeding section and vertical powder feeding section.
4. the metal laser melting external powder feeding mechanism of equipment side wall of 3D printing as claimed in claim 2, it is characterized in that: described swash
Realize that the inclination powder feeding section in powder feeding channel is fixedly mounted by flange (15) in light furnace one side wall, powder feeding channel and laser furnace sidewall
Between by sealing ring (12) seal.
5. the metal laser melting external powder feeding mechanism of equipment side wall of 3D printing as described in claim 1, it is characterized in that: it is described go out
Powder mechanism is equipped with lower shut-off valve (9), is equipped with shut-off valve (13) on powder feeding channel.
6. the metal laser melting external powder feeding mechanism of equipment side wall of 3D printing as described in claim 1, it is characterized in that: described send
Vibration device (16) are additionally provided on the lateral wall of powder channel.
7. the metal laser melting external powder feeding mechanism of equipment side wall of 3D printing as claimed in claim 6, it is characterized in that: the vibration
Fixing clamp is equipped with sound insulating pad (17) between dynamic device and powder feeding channel lateral wall.
8. the metal laser melting external powder feeding mechanism of equipment side wall of 3D printing as described in claim 1, it is characterized in that: described swash
Powder guide pad is additionally provided with out on light furnace, the powder guide pad out is just pairs of with the meal outlet position of powder feeding channel end, and powder is led out
Inclined guide surface is formed on block, the scraper of power spreading device be able to move to out immediately below powder guide pad.
9. the metal laser melting external powder feeding mechanism of equipment side wall of 3D printing as described in claim 1, it is characterized in that: it is described go out
Powder mechanism includes sliding part and elastic component, and what the sliding part can reciprocatingly slide along the power spreading device direction of motion is installed on laser
On the inner sidewall of furnace side, the powder channel that can be connected to the meal outlet face in powder feeding channel, elastic component are formed on sliding part
The elastic holding force for keeping the meal outlet in powder channel and powder feeding channel to be in misaligned state is provided to sliding part, on power spreading device
Triggering block powder channel thereon can be made to be connected to the meal outlet face in powder feeding channel tight against sliding part sidewall.
10. the metal laser melting external powder feeding mechanism of equipment side wall of 3D printing as described in claim 1, it is characterized in that: described
It is additionally provided with guide rail (3) on the inside of Laser stove, power spreading device is equipped with sliding block (4), the set that the sliding block is slided along guide rail extending direction
On the outside of guide rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811623371.XA CN109500395A (en) | 2018-12-28 | 2018-12-28 | The metal laser melting external powder feeding mechanism of equipment side wall of 3D printing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811623371.XA CN109500395A (en) | 2018-12-28 | 2018-12-28 | The metal laser melting external powder feeding mechanism of equipment side wall of 3D printing |
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| Publication Number | Publication Date |
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| CN109500395A true CN109500395A (en) | 2019-03-22 |
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| CN201811623371.XA Pending CN109500395A (en) | 2018-12-28 | 2018-12-28 | The metal laser melting external powder feeding mechanism of equipment side wall of 3D printing |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110328365A (en) * | 2019-07-09 | 2019-10-15 | 深圳精匠云创科技有限公司 | 3D printing device and its packing auger structure |
| CN110560689A (en) * | 2019-09-29 | 2019-12-13 | 西安增材制造国家研究院有限公司 | Continuous circulation powder laying structure and additive manufacturing forming equipment |
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