CN106424730A - Centrifugal supplying and vibrating compaction device and method for powder for 3D printing - Google Patents
Centrifugal supplying and vibrating compaction device and method for powder for 3D printing Download PDFInfo
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- CN106424730A CN106424730A CN201610940467.3A CN201610940467A CN106424730A CN 106424730 A CN106424730 A CN 106424730A CN 201610940467 A CN201610940467 A CN 201610940467A CN 106424730 A CN106424730 A CN 106424730A
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- powder
- powdering
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- dimensional
- printing
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Classifications
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- 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
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- 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
- B22F12/10—Auxiliary heating means
- B22F12/13—Auxiliary heating means to preheat the material
-
- 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]
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- 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
- B22F10/30—Process control
- B22F10/37—Process control of powder bed aspects, e.g. density
-
- 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
- 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
-
- 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
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/004—Filling molds with powder
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- 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
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/02—Compacting only
- B22F3/093—Compacting only using vibrations or friction
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- 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
- B33Y10/00—Processes of additive manufacturing
-
- 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
- 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
- B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
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- 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 centrifugal supplying and vibrating compaction device and method for powder for 3D printing. The device comprises a centrifugal powder spreading device arranged in a molding chamber, a powder supplying mechanism for conveying the powder to the centrifugal powder spreading device and a liftable three-dimensional vibrating molding platform arranged below a powder spreading workbench; the whole centrifugal powder spreading device adopts a cylindrical structural which is rotatable and capable of moving in the plane above a workpiece molding area of the three-dimensional vibrating molding platform; openings in the upper end and the lower end of the centrifugal powder spreading device are gradually expanded, the opening in the upper end is a powder receiving port, the opening in the lower end is a powder scattering port, a screen is mounted in the powder scattering port, and the centrifugal powder spreading device is used for spreading received powder in the workpiece molding area of the three-dimensional vibrating molding platform. With the device and the method, the powder spreading process can be uniform and consistent, spread powder particles are more compact, and the density and the surface roughness of molded pieces are improved.
Description
Technical field
The present invention relates to 3D printing apparatus field, a kind of powder centrifugation supply of more particularly to 3D printing, vibration ramming dress
Put and method.
Background technology
3D printing technique is one kind of Fast Forming Technique, is the direct three-dimensional entity model data according to product,
After processing through computer, three-dimensional entity model is converted into the superposition of many areal models, finally by computer controls by product
Successively print.Especially with electron beam, the electron beam that metal dust fusing in layer is generated fine and close part melts
Melt (EBM) technology and have the advantages that capacity usage ratio is high, process velocity is fast, operating cost is low, fine vacuum is protected, it has also become Gao Xing
The preferable Rapid Manufacturing Technology of the complicated metallic sintered products of energy.One of key index of electron beam melting (EBM) technology is exactly fine and close
Degree, and the combination degree of packing between the degree of packing during powdering between powder particle, uniformity and each powdering layer is for most
The consistency of finished product produces vital impact.
In existing EBM equipment, powdering structure is excessively single, drives powder to be paved with work by the linear motion of scraper plate merely
Substrate.But for powder, the power of only horizontal plane makes which be covered with working substrate, and the power without vertical direction causes powder
Spacing between granule and powder particle reduces, that is, improve the degree of packing between powder particle.And for each powdering layer, existing
Only using scraper plate powdering method can not in the vertical direction promote the combination more consolidation between powdering layer and powdering layer.And
The simple traditional method using scraper plate, due to the selection of scraper plate material and the design of profile, it is impossible to guarantee on working substrate
The uniformity and concordance of spread metal powder granulates.
Content of the invention
It is an object of the invention to overcoming the shortcoming and defect of above-mentioned prior art, a kind of powder centrifugation of 3D printing is provided
Supply, vibration ramming device and method.
The present invention is achieved through the following technical solutions：
A kind of powder centrifugation supply of 3D printing, vibration ramming device, including forming room and set within it for constituency
The electron beam generator of fusing powder, powdering workbench 6 and its powdering mechanism；The powder centrifugation supply, vibration ramming device
Including：Be arranged on being centrifuged Powder spreader 3, the machine supplying powder structure of powder being conveyed, be arranged on powdering work for centrifugation Powder spreader 3 in molding room
The liftable three-dimensional vibrating shaped platform 7 of lower section in station 6；
The machine supplying powder structure includes the powder feeding band 2 for storing up powder room 1, being arranged on below 1 meal outlet of storage powder room 103；Powder feeding band 2 is used
Powder spreader 3 is centrifuged in the powder in storage powder room 1 to be delivered to；Storage powder room 1 does not set base plate.
3 entirety of centrifugation Powder spreader is in rotatable and can be in the Workpiece shaping overlying regions of three-dimensional vibrating shaped platform 7
The tubular structure of planar movement, its upper and lower both ends open gradually expands, and upper end open is that powder receiving port 301, lower ending opening is
Powder mouth 303, powder mouth 303 is provided with screen cloth 304, for spilling the powder paving of reception to the work of three-dimensional vibrating shaped platform 7
Part forming area.
The powder feeding is intervally distributed with the powder feeding baffle plate 202 for collecting powder with 2 outer surface, and powder feeding band 2 is by two
Drivewheel 203 drives；
When powder feeding baffle plate 202 carry powder be transported to powder feeding with 2 the port of export when, powder is dropped under gravity
Centrifugation Powder spreader 3, in the rotary centrifugal force effect of centrifugation Powder spreader 3, powder is sprinkled upon three-dimensional vibrating shaped platform by the paving of screen cloth 304
7 Workpiece shaping region, makes powder consolidation, then the rigidity by powdering mechanism under the effect of vibration of three-dimensional vibrating shaped platform 7
Powder after consolidation is scraped smooth by powdering brush 5 by required thickness.
The rotary power of the centrifugation Powder spreader 3, is come from and is driven by the gear of meshed transmission gear with middle cylinder 302
Motivation structure 305.
The three-dimensional vibrating shaped platform 7 includes working substrate 701, base plate 705 and eccentric vibrating motor 704；Work base
Fixed by support bar between plate 701 and base plate 705；
The eccentric vibrating motor 704 is divided into two groups, per group two, and is separately fixed at the lower section of working substrate 701, and this two
The axis direction of 704 rotating shaft of group eccentric vibrating motor is mutually perpendicular to；When eccentric vibrating motor 704 is rotated, working substrate is driven
701 vibrations on space three-dimensional direction, and then powder consolidation is made by vibration.
The working substrate 701 is provided with cushion pad by two pieces of sandwiches for constituting substantially at the edge of sandwich
702；The middle part of the support bar has additional rubber blanket 703；The base plate 705 is fixed on lifting platform 8, is driven by lifting platform 8
Three-dimensional vibrating shaped platform 7 moves up and down.
The rigid powdering brush 5 is mounted on line slideway 4, and line slideway 4 is arranged on forming room medial wall, by powdering machine
Structure drives its linear reciprocating motion.
The lower section at 6 two ends of powdering workbench, is respectively equipped with a Powder Recovery room 11 with Powder Recovery pipe 10, powder
The top of last recovery tube 10 connects the Powder Recovery mouth 9 on powdering workbench 6；Powder Recovery room 11 is used for reclaiming rigid powdering brush
Remaining powder during 5 powdering operation.
The screen cloth 304 is detachable connection with the powder mouth 303 of centrifugation Powder spreader 3.
The inwall of the storage powder room 1 is provided with the electric heater 102 for being heated to powder.
A kind of powder centrifugation supply of 3D printing, the operation method of vibration ramming device, comprise the steps：
Step one：Start the electric heater 102 in storage powder room 1, powder is heated；
Step 2：When powdering operation starts, drivewheel 203 drives powder feeding band 2 to run；By the rotating speed of drivewheel 203 with
Control single powder sending quantity；
Step 3：When powder feeding baffle plate 202 carry powder be transported to powder feeding with 2 the port of export when, powder feeding baffle plate 202 is down
Incline, until powder drops to centrifugation Powder spreader 3 under gravity；
Step 4：Under the rotary centrifugal force effect of centrifugation Powder spreader 3, powder is sprinkled upon three-dimensional vibrating by the paving of screen cloth 304 and becomes
The Workpiece shaping region of type platform 7；At the same time, two groups of eccentric vibrating motors 704 of three-dimensional vibrating shaped platform 7 start to turn
Dynamic, the axis direction due to this two groups of 704 rotating shafts of eccentric vibrating motor is mutually perpendicular to, when they rotate simultaneously, in eccentric
In the presence of, so that working substrate 701 is vibrated on space three-dimensional direction, powder consolidation is made by vibration；Subsequently powdering mechanism drives
Rigid powdering brush 5 on dynamic line slideway 4 enters from one end horizontal movement of powdering workbench 6 to the other end of powdering workbench 6
And the powder after vibration ramming is scraped smooth by required thickness, complete once to scrape powder；Then there is electronics by electron beam generator
Bundle cuts open, according to processing part, the fusing that planar structure is realized to powder in the Workpiece shaping region of working substrate 701, completes one
The printing of individual machined layer；
Step 5：After completing the printing of a machined layer, lifting platform 8 drives three-dimensional vibrating shaped platform 7 to decline a powder
Thickness degree, then continues to repeat step four；So circulate, until completing the printing of all machined layer.
The present invention is had the following advantages and effect with respect to prior art：
The present invention is combined with storage powder room using powder feeding band, is effectively improved powder feeding and production efficiency；Sent by adjustment
The spacing of powder baffle plate, scalable unit powder sending quantity, by control drivewheel rotating speed can indirect control single powder sending quantity, operation letter
Single, easy to automate.
The present invention passes through centrifugal principle powder using centrifugation Powder spreader 3, and which is in integrally rotatable and can become in three-dimensional vibrating
The tubular structure of the Workpiece shaping overlying regions planar movement of type platform, its upper and lower both ends open gradually expands, and upper end open is
Powder receiving port, lower ending opening is that powder mouth, powder mouth is provided with screen cloth, for spilling to three-dimensional vibrating the powder paving of reception
The Workpiece shaping region of type platform；This centrifugation powder mode, is more uniformly distributed can spread metal dust, unanimously, improve into
The consistency and surface roughness of type part, simple structure, easy to operate.
Liftable three-dimensional vibrating shaped platform 7 is present invention employs, is solved existing moulding cylinder and be only capable of the single of lifting
Defect；Vibration by eccentric vibrating motor so that between the metal powder granulates for falling on working substrate, spacing reduces, and carries significantly
The high powder consistency of powdering layer, and then substantially increase precision, consistency and the surface roughness of profiled member.
Technical measure is simple and easy to do, while overcoming traditional powdering technique, by three-dimensional vibrating mode, significantly
Improve the combination degree of packing between the degree of packing between powder particle, uniformity and each bisque.
Description of the drawings
Fig. 1 is overall structure diagram of the present invention.
Fig. 2 is centrifuged the structural representation of Powder spreader for Fig. 1.
Fig. 3 is the structural representation of Fig. 1 three-dimensional vibrating shaped platform.
Specific embodiment
With reference to specific embodiment, the present invention is more specifically described in detail.
Embodiment
As shown in Figures 1 to 3.The invention discloses a kind of powder centrifugation supply of 3D printing, vibration ramming device, including becoming
Type room and set within it for the electron beam generator of selective melting powder, powdering workbench 6 and its powdering mechanism；The powder
End centrifugation supply, vibration ramming device include：Being arranged on centrifugation Powder spreader 3 in molding room, powder is conveyed for centrifugation Powder spreader 3
Machine supplying powder structure, be arranged in powdering workbench 6 the liftable three-dimensional vibrating shaped platform 7 of lower section；
The machine supplying powder structure includes the powder feeding band 2 for storing up powder room 1, being arranged on below 1 meal outlet of storage powder room 103；Powder feeding band 2 is used
Powder spreader 3 is centrifuged in the powder in storage powder room 1 to be delivered to；
3 entirety of centrifugation Powder spreader is in rotatable and can be in the Workpiece shaping overlying regions of three-dimensional vibrating shaped platform 7
The tubular structure of planar movement, its upper and lower both ends open gradually expands, and upper end open is that powder receiving port 301, lower ending opening is
Powder mouth 303, powder mouth 303 is provided with screen cloth 304, for spilling the powder paving of reception to the work of three-dimensional vibrating shaped platform 7
Part forming area.The mesh number of screen cloth 304 can be determined according to the particle diameter of powder particle in practical application.
The powder feeding is intervally distributed with the powder feeding baffle plate 202 for collecting powder with 2 outer surface, and powder feeding band 2 is by two
Drivewheel 203 drives；
When powder feeding baffle plate 202 carry powder be transported to powder feeding with 2 the port of export when, powder is dropped under gravity
Centrifugation Powder spreader 3, in the rotary centrifugal force effect of centrifugation Powder spreader 3, powder is sprinkled upon three-dimensional vibrating shaped platform by the paving of screen cloth 304
7 Workpiece shaping region, makes powder consolidation, then the rigidity by powdering mechanism under the effect of vibration of three-dimensional vibrating shaped platform 7
Powder after consolidation is scraped smooth by powdering brush 5 by required thickness.
The rotary power of the centrifugation Powder spreader 3, is come from and is driven by the gear of meshed transmission gear with middle cylinder 302
Motivation structure 305.
The three-dimensional vibrating shaped platform 7 includes working substrate 701, base plate 705 and eccentric vibrating motor 704；Work base
Fixed by support bar between plate 701 and base plate 705；
The eccentric vibrating motor 704 is divided into two groups, per group two, and is separately fixed at the lower section of working substrate 701, and this two
The axis direction of 704 rotating shaft of group eccentric vibrating motor is mutually perpendicular to；Certainly, according to actual needs, the eccentric vibrating motor 704
Number of units also accordingly can be adjusted.
When eccentric vibrating motor 704 is rotated, vibration of the working substrate 701 on space three-dimensional direction, Jin Ertong is driven
Crossing vibration makes powder consolidation, uniform, substantially increases the machining accuracy of final products and the consistency of product itself.
The working substrate 701 is provided with cushion pad by two pieces of sandwiches for constituting substantially at the edge of sandwich
702；The middle part of the support bar has additional rubber blanket 703；The base plate 705 is fixed on lifting platform 8, is driven by lifting platform 8
Three-dimensional vibrating shaped platform 7 moves up and down.
The rigid powdering brush 5 is mounted on line slideway 4, and line slideway 4 is arranged on forming room medial wall, by powdering machine
Structure drives its linear reciprocating motion.
The lower section at 6 two ends of powdering workbench, is respectively equipped with a Powder Recovery room 11 with Powder Recovery pipe 10, powder
The top of last recovery tube 10 connects the Powder Recovery mouth 9 on powdering workbench 6；Powder Recovery room 11 is used for reclaiming rigid powdering brush
Remaining powder during 5 powdering operation.
The screen cloth 304 is detachable connection with the powder mouth 303 of centrifugation Powder spreader 3.
The inwall of the storage powder room 1 is provided with the electric heater 102 for being heated to powder.
The powder centrifugation supply of 3D printing of the present invention, the operation method of vibration ramming device, can be achieved by the steps of：
Step one：Start the electric heater 102 in storage powder room 1, (metal) powder is heated；
Step 2：When powdering operation starts, drivewheel 203 drives powder feeding band 2 to run；By the rotating speed of drivewheel 203 with
Control single powder sending quantity；Due to the height seamless engagement of meal outlet 103 just with storage powder room 1 of powder feeding baffle plate 202, so can
To ensure that powder is not revealed during powder feeding.
Step 3：When powder feeding baffle plate 202 carry powder be transported to powder feeding with 2 the port of export when, powder feeding baffle plate 202 is down
Incline, until powder drops to centrifugation Powder spreader 3 under gravity；
Step 4：Under the rotary centrifugal force effect of centrifugation Powder spreader 3, powder is sprinkled upon three-dimensional vibrating by the paving of screen cloth 304 and becomes
The Workpiece shaping region of type platform 7；At the same time, two groups of eccentric vibrating motors 704 of three-dimensional vibrating shaped platform 7 start to turn
Dynamic, the axis direction due to this two groups of 704 rotating shafts of eccentric vibrating motor is mutually perpendicular to, when they rotate simultaneously, in eccentric
In the presence of, so that working substrate 701 is vibrated on space three-dimensional direction, powder consolidation is made by vibration；Subsequently powdering mechanism drives
Rigid powdering brush 5 on dynamic line slideway 4 enters from one end horizontal movement of powdering workbench 6 to the other end of powdering workbench 6
And the powder after vibration ramming is scraped smooth by required thickness, complete once to scrape powder；Then there is electronics by electron beam generator
Bundle cuts open, according to processing part, the fusing that planar structure is realized to powder in the Workpiece shaping region of working substrate 701, completes one
The printing of individual machined layer；
Step 5：After completing the printing of a machined layer, lifting platform 8 drives three-dimensional vibrating shaped platform 7 to decline a powder
Thickness degree, then continues to repeat step four；So circulate, until completing the printing of all machined layer.
Lifting platform 8 can be lifted by servomotor precise control；Original state, the height of working substrate 701 and powdering work
Station 6 is flushed.
As described above, just can preferably realize the present invention.
Embodiments of the present invention are simultaneously not restricted to the described embodiments, other any spirit without departing from the present invention
With the change that is made under principle, modification, replacement, combine, simplify, all should be equivalent substitute mode, be included in the present invention's
Within protection domain.
Claims (10)
1. a kind of powder centrifugation supply of 3D printing, vibration ramming device, including forming room and set within it molten for constituency
Change electron beam generator, powdering workbench (6) and its powdering mechanism of powder；It is characterized in that the powder centrifugation supplies, shakes
Dynamic mold compacting device includes：The centrifugation Powder spreader (3) being arranged in molding room, the machine supplying powder for conveying powder for centrifugation Powder spreader (3)
Structure, liftable three-dimensional vibrating shaped platform (7) that are arranged on below in powdering workbench (6)；
The machine supplying powder structure includes the powder feeding band (2) for storing up powder room (1), being arranged on below storage powder room (1) meal outlet (103)；Powder feeding
Band (2) is used for for the powder in storage powder room (1) being delivered to centrifugation Powder spreader (3)；
Centrifugation Powder spreader (3) is in integrally rotatable and can be in the Workpiece shaping overlying regions of three-dimensional vibrating shaped platform (7)
The tubular structure of planar movement, its upper and lower both ends open gradually expands, and upper end open is powder receiving port (301), lower ending opening
For powder mouth (303), powder mouth (303) is provided with screen cloth (304), puts down for spilling the powder paving of reception to three-dimensional vibrating molding
The Workpiece shaping region of platform (7).
2. the powder of 3D printing according to claim 1 is centrifuged supply, vibration ramming device, it is characterised in that the powder feeding band
(2) outer surface is intervally distributed with the powder feeding baffle plate (202) for collecting powder, and powder feeding band (2) is driven by two drivewheels (203)
Dynamic；
When the powder that powder feeding baffle plate (202) is carried is transported to the port of export of powder feeding band (2), powder is dropped under gravity
Centrifugation Powder spreader (3), in the rotary centrifugal force effect of centrifugation Powder spreader (3), powder is sprinkled upon three-dimensional vibrating by screen cloth (304) paving and becomes
The Workpiece shaping region of type platform (7), makes powder consolidation under the effect of vibration of three-dimensional vibrating shaped platform (7), then by powdering
Powder after consolidation is scraped smooth by rigid powdering brush (5) of mechanism by required thickness.
3. the powder of 3D printing according to claim 1 is centrifuged supply, vibration ramming device, it is characterised in that the centrifugation paving
The rotary power of powder device (3), comes from the gear driven mechanism (305) by meshed transmission gear with middle cylinder (302).
4. the powder of 3D printing according to claim 1 is centrifuged supply, vibration ramming device, it is characterised in that the three-dimensional is shaken
Dynamic shaped platform (7) include working substrate (701), base plate (705) and eccentric vibrating motor (704)；Working substrate (701) and bottom
Plate is fixed by support bar between (705)；
The eccentric vibrating motor (704) is divided into two groups, per group two, and is separately fixed at the lower section of working substrate (701), and this two
The axis direction of group eccentric vibrating motor (704) rotating shaft is mutually perpendicular to；When eccentric vibrating motor (704) is rotated, work is driven
Vibration of the substrate (701) on space three-dimensional direction, and then powder consolidation is made by vibration.
5. the powder of 3D printing according to claim 4 is centrifuged supply, vibration ramming device, it is characterised in that the work base
Plate (701) is provided with cushion pad (702) by two pieces of sandwiches for constituting substantially at the edge of sandwich；The support bar
Middle part have additional rubber blanket (703)；Base plate (705) are fixed on lifting platform (8), drive three-dimensional to shake by lifting platform (8)
Dynamic shaped platform (7) move up and down.
6. the powder of 3D printing according to claim 2 is centrifuged supply, vibration ramming device, it is characterised in that the rigidity spreads
Paint (5) to be mounted on line slideway (4), line slideway (4) drives which reciprocal by powdering mechanism on forming room medial wall
Linear motion.
7. the powder of 3D printing according to any one of claim 1 to 6 is centrifuged supply, vibration ramming device, and its feature exists
In the lower section at powdering workbench (6) two ends, a Powder Recovery room (11) with Powder Recovery pipe (10), powder is respectively equipped with
Powder Recovery mouth (9) on top connection powdering workbench (6) of last recovery tube (10)；Powder Recovery room (11) is used for reclaiming just
Remaining powder during property powdering brush (5) powdering operation.
8. the powder of 3D printing according to claim 7 is centrifuged supply, vibration ramming device, it is characterised in that the screen cloth
(304) with centrifugation Powder spreader (3) powder mouth (303) be detachable connection.
9. the powder of 3D printing according to claim 7 is centrifuged supply, vibration ramming device, it is characterised in that the storage powder room
(1) inwall is provided with the electric heater (102) for being heated to powder.
10. the powder of 3D printing any one of claim 1 to 9 is centrifuged supply, the operation method of vibration ramming device, its
It is characterised by comprising the steps：
Step one：Start the electric heater (102) in storage powder room (1), powder is heated；
Step 2：When powdering operation starts, drivewheel (203) drives powder feeding band (2) operation；Rotating speed by drivewheel (203)
To control single powder sending quantity；
Step 3：When the powder that powder feeding baffle plate (202) is carried is transported to the port of export of powder feeding band (2), powder feeding baffle plate (202) is past
Lower inclination, until powder drops to centrifugation Powder spreader (3) under gravity；
Step 4：Under the rotary centrifugal force effect of centrifugation Powder spreader (3), powder is sprinkled upon three-dimensional vibrating by screen cloth (304) paving and becomes
The Workpiece shaping region of type platform (7)；At the same time, two groups of eccentric vibrating motors (704) of three-dimensional vibrating shaped platform (7) are opened
Begin to rotate, the axis direction due to this two groups of eccentric vibrating motors (704) rotating shaft is mutually perpendicular to, when they rotate simultaneously,
In the presence of eccentric, so that working substrate (701) is vibrated on space three-dimensional direction, powder consolidation is made by vibration；Subsequently spread
Powder mechanism drives rigid powdering brush (5) on line slideway (4) to work from one end horizontal movement of powdering workbench (6) to powdering
The other end of platform (6), and then the powder after vibration ramming is scraped smooth by required thickness, complete once to scrape powder；Then by electronics
There is electron beam in the Workpiece shaping region of working substrate (701) in beam generator, realize according to the planar structure of cuing open of processing part
Fusing to powder, completes the printing of a machined layer；
Step 5：After completing the printing of a machined layer, lifting platform (8) drives three-dimensional vibrating shaped platform (7) to decline a powder
Thickness degree, then continues to repeat step four；So circulate, until completing the printing of all machined layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610940467.3A CN106424730B (en) | 2016-10-25 | 2016-10-25 | A kind of powder centrifugation supply of 3D printing, vibration ramming device and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN106903315A (en) * | 2017-05-08 | 2017-06-30 | 长沙新材料产业研究院有限公司 | A kind of 3D printing equipment and Method of printing |
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| CN107444885A (en) * | 2017-08-31 | 2017-12-08 | 华中科技大学 | A kind of increasing material manufacturing automatic powder feeding system |
| CN108000870A (en) * | 2017-12-01 | 2018-05-08 | 西安交通大学 | A kind of 3DP technological formings system and its operating method |
| CN108607779A (en) * | 2018-06-29 | 2018-10-02 | 佛山贝玛照明科技有限公司 | A kind of chalazie for LED lamp light-transmitting plate pastes equipment |
| CN109317663A (en) * | 2018-11-05 | 2019-02-12 | 四川恒创博联科技有限责任公司 | A kind of supersonic oscillations powder bed system |
| CN109226762A (en) * | 2018-11-14 | 2019-01-18 | 浙江工贸职业技术学院 | A kind of metal 3D printing equipment |
| CN110216286B (en) * | 2019-06-25 | 2020-08-28 | 江苏大学 | Laser cladding device and method for spreading powder under assistance of centrifugal force |
| CN110216286A (en) * | 2019-06-25 | 2019-09-10 | 江苏大学 | A kind of centrifugal force auxiliary paves the laser cladding apparatus and method of powder |
| CN110948858A (en) * | 2019-12-17 | 2020-04-03 | 安徽薄荷三维科技有限公司 | Full-color powder 3D prints groove drive arrangement |
| CN110978507A (en) * | 2019-12-24 | 2020-04-10 | 安徽薄荷三维科技有限公司 | Powder paving device for full-color powder 3D printing |
| CN111604499A (en) * | 2020-06-04 | 2020-09-01 | 济南大学 | Method and system for uniformly mixing and filling metal powder into die cavity by 3D-like printing technology and multi-cavity feeding boot |
| CN111745961A (en) * | 2020-07-07 | 2020-10-09 | 龙岩聚达科技有限公司 | Intelligent powder laying device for 3D printer and control method thereof |
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| CN113799312B (en) * | 2021-08-31 | 2023-10-31 | 上海翌上新能源科技有限公司 | Powder spreading device |
| CN115887224A (en) * | 2022-05-25 | 2023-04-04 | 华侨大学 | Ultrasonic vibration powder distribution method for powder compression molding process |
| CN116330651A (en) * | 2023-03-31 | 2023-06-27 | 苏州研拓自动化科技有限公司 | Polymer material 3D printer shop powder mechanism based on keep apart bowl |
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