CN105710372B - Powder discharger and powder feeder unit of the selective laser sintering one side for powder - Google Patents
Powder discharger and powder feeder unit of the selective laser sintering one side for powder Download PDFInfo
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- CN105710372B CN105710372B CN201610221483.7A CN201610221483A CN105710372B CN 105710372 B CN105710372 B CN 105710372B CN 201610221483 A CN201610221483 A CN 201610221483A CN 105710372 B CN105710372 B CN 105710372B
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- 239000000843 powder Substances 0.000 title claims abstract description 241
- 238000000110 selective laser sintering Methods 0.000 title claims abstract description 28
- 238000005245 sintering Methods 0.000 claims abstract description 12
- 238000000227 grinding Methods 0.000 claims description 14
- 230000005540 biological transmission Effects 0.000 claims description 5
- 230000002337 anti-port Effects 0.000 claims description 4
- 238000011002 quantification Methods 0.000 abstract description 2
- 230000033001 locomotion Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000000465 moulding Methods 0.000 description 5
- 230000007480 spreading Effects 0.000 description 5
- 238000003892 spreading Methods 0.000 description 5
- 238000010146 3D printing Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000003032 molecular docking Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 239000006052 feed supplement Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000009490 roller compaction Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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
-
- 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
- B22F12/22—Driving means
- B22F12/224—Driving means for motion along a direction within the plane of a layer
-
- 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
- B22F12/63—Rollers
-
- 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
-
- 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 present invention provides powder discharger and powder feeder unit of a kind of selective laser sintering one side for powder, and powder discharger includes：Hold the powder funnel of sintering powder；The leakage tube cell being connected with powder funnel, the interior leakage powder passage having for powder of leakage tube cell；The bottom plate being connected with the leakage tube cell bottom, the side of bottom plate have the leakage powder tank of leakage powder, and leakage powder tank misplaces with the leakage powder passage；It is placed in the bottom plate and leaks the powder-leakage plate between tube cell, slide and be connected with the leakage tube cell, there is row's powder leakage hole on powder-leakage plate, powder-leakage plate makes all powder leakage holes positioned at the underface of the leakage powder passage or positioned at the surface of the leakage powder tank when sliding, when initial, all powder leakage holes are positioned at the underface of leakage powder passage.The present invention, which can automate, realizes that accurate quantification supplies powder, and powder is mended without artificial.
Description
Technical field
The present invention relates to selective laser sintering and moulding technology field, more particularly to a kind of selective laser sintering one side
For the powder discharger and powder feeder unit of powder.
Background technology
At present, 3D printer is occurred gradually in the visual field of people, and the 3D printing of selective laser sintering (abbreviation SLS)
Machine also increasingly embodies considerable effect as a kind of important means of industrial processes.The technology is using solid powder as original
Material, entity is converted into by CAD model.According to factors such as material character, product structure and technological requirements, SLS3D printings are set
Standby power spreading device very thin powder of uniform layer overlay on workbench supplies the sintering of a layer cross section shape, the thickness of powder bed
Degree, density, uniformity etc. all directly affect sintering quality.
Being coated with for powder is the critical process for influenceing 3D printing Forming Quality, shaping speed and reliability, and it includes powder
Supply and roller compaction two parts, in traditional powder sintered Quick-forming, selective laser sintering uses multiple working cylinders more
For powder mode, that is, the working cylinder being arranged in parallel and for moulding cylinder, in the course of the work, and after the completion of one layer of powder forming, working cylinder
In working face decline one layer, in moulding cylinder piston rise one layer, a certain amount of powder is released, by powder-laying roller or scraper plate
Powder is layered on working face, completes to unload unnecessary powder to both sides after powdering to overflow powder cylinder.Powder is completely sudden and violent during due to powdering
In the work environment, centrifugal force caused by powder-laying roller motion sheds powder in the powder bed and work completed with outskirt to dew
Domain, powdering quality is influenceed, and the working environment of equipment is polluted.
In order to further improve powdering efficiency, improve powdering quality.People are further changed to SLS for powder power spreading device
It is kind.Such as the powder-supply system that Tongji University's university research goes out, it is used for powder mode, i.e., quantitatively supplying powder is carried out above workbench,
And it is integrated with powder-laying roller motion, form independent power spreading device module；Setting for 3D printing has been saved in the design in original degree
Standby space, for powder process also more accurate, cleaning, but the equipment needs accurate control to leakage powder process, for example, leakage powder amount with
Leak powder speed and with the quantitative relationship between power spreading device translational speed, this requires especially high to control system, in addition, should
The powder discharger of mode on the table repeatedly lay layer dusty material after, it is sometimes desirable to manually carry out feed supplement, to operator with
It is inconvenient to come, and influences forming efficiency.
Chinese patent CN 203409251 proposes that one kind is used for Selective Laser Sintering automatic feeding powder feeder unit,
The device is provided with material storing box, when the multiple powdering of powder-laying roller, number is set on calculator, postive stop baffle is touched by powder-laying roller
Number count, the data of record are transmitted to discharge controller by counter, by powder in discharge controller control material storing box
Outflow.Although the device solves the problems, such as the artificial feed supplement that said apparatus is likely to occur, but be the increase in 3D printing equipment
Space, and it is complicated, it is necessary to more transmission and control device, be unfavorable for technique control and ensure equipment dependability.
The content of the invention
In view of the above the shortcomings that prior art, it is an object of the invention to provide a kind of selective laser sintering one side
For the powder discharger and powder feeder unit of powder, for solving accurately supply powder in selective laser sintering technique in the prior art
The problem of.
In order to achieve the above objects and other related objects, the present invention provides a kind of selective laser sintering one side for powder
Powder discharger, it includes：
Hold the powder funnel of sintering powder；
The leakage tube cell being connected with powder funnel, the interior leakage powder passage having for powder of leakage tube cell；
The bottom plate being connected with the leakage tube cell bottom, the side of bottom plate have the leakage powder tank of leakage powder, leak powder tank with it is described
Leak the dislocation of powder passage；
It is placed in the bottom plate and leaks the powder-leakage plate between tube cell, slides and be connected with the leakage tube cell, have one on powder-leakage plate
Powder leakage hole is arranged, powder-leakage plate makes all powder leakage holes positioned at the underface of the leakage powder passage or positioned at the leakage powder tank when sliding
Surface, when initial, all powder leakage holes are positioned at the underface of leakage powder passage.
Preferably, the leakage tube cell is connected by two sections pipeline is formed, and underlying pipeline is wider than above
Pipeline.
Preferably, the both sides of the leakage tube cell bottom have the boss of circumferentially extending, and one and institute are provided with each boss
The strip hole that Lou powder passage is perpendicular is stated, the sliding bar extended along strip hole length direction is provided with strip hole；The powder-leakage plate
Both ends connect a sliding block respectively, the sliding block is plugged in the strip hole and top is exposed, and the sliding block is located in
On sliding bar, sliding bar is provided with back-moving spring.
Preferably, the cross section of the leakage powder passage is strip.
The present invention also provides a kind of selective laser sintering one side powder feeder unit, and it includes：
Line slideway above powdering component, including drive component, the horizontal workbench located at used in selective sintering
And powder-laying roller, the powder-laying roller are connected with sliding the drive block on line slideway, the drive block and the driving group
Part transmission is connected；
Powder discharger positioned at the workbench side, using selective laser sintering one side as described above for powder
Powder discharger, the drive block can contact under the drive of drive component with the powder-leakage plate, and in the drive of drive component
Dynamic lower drive powder-leakage plate slides, and powder is dropped down onto out of powder discharger on the workbench, the powder-laying roller moves to simultaneously
The outside of leaked powder；Drive component drives drive block antiport, and powder-laying roller is promoted to leak powder and be laid in the work and put down
On platform.
Preferably, the line slideway is provided with two postive stop baffles, and two postive stop baffles correspond respectively to the work
The both ends of platform.
Preferably, speed limit baffle plate is additionally provided with the line slideway, speed limit baffle plate corresponds at the powder discharger.
Preferably, the both sides of the leakage tube cell bottom have the boss of circumferentially extending, and one and institute are provided with each boss
The strip hole that Lou powder passage is perpendicular is stated, the sliding bar extended along strip hole length direction is provided with strip hole；The powder-leakage plate
Both ends connect a sliding block respectively, the sliding block is plugged in the strip hole and top is exposed, and sliding block is located in slip
On bar, sliding bar is provided with back-moving spring；The drive block can be in contact under the drive of the drive component with sliding block top,
To drive powder-leakage plate to slide.
Preferably, the both ends of the workbench are equipped with excessive powder cylinder, and the upper surface for the powder cylinder that overflows and the workbench
Upper surface it is concordant.
As described above, the present invention selective laser sintering one side supply powder powder discharger and powder feeder unit, with
Lower beneficial effect：It uses powder-leakage plate to slide between leakage tube cell and bottom plate, by the slip of powder-leakage plate, realize powder leakage hole with
Leak powder passage or leak the docking of powder tank, completion powder is transported to out of leakage powder pipeline and Lou fallen at powder tank, realizes quantifying for powder
For powder, and powder funnel can supply bag etc. with powder and be joined directly together, and substitute artificial benefit powder；Utilize the drive block for driving powder-laying roller
To drive powder-leakage plate to move, the function of supplying powder powdering automatically is realized.
Brief description of the drawings
Fig. 1 is shown as the selective laser sintering one side powder feeder unit schematic diagram of the present invention.
Fig. 2 is shown as powder-leakage plate in the powder discharger of the present invention and is in high order end view.
Fig. 3 is shown as powder-leakage plate in the powder discharger of the present invention and is in low order end view.
Fig. 4 is shown as the epimere pipe schematic diagram of the leakage tube cell of the present invention.
Fig. 5 is shown as the hypomere pipe schematic diagram of the leakage tube cell of the present invention.
Fig. 6 is shown as the powder-leakage plate schematic diagram of the present invention.
Component label instructions
1 powder funnel
2 leakage tube cells
21 epimere pipes
22 hypomere pipes
221 strip holes
222 sliding bars
23 leakage powder passages
201 bolts hole
202 mounting holes
3 powder-leakage plates
31 sliding blocks
32 powder leakage holes
4 bottom plates
41 leakage powder tanks
5 workbenches
6 powder-laying rollers
7 drive blocks
8 line slideways
81st, 83 postive stop baffle
82 speed limit baffle plates
9 excessive powder cylinders
10 back-moving springs
Embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation
Content disclosed by book understands other advantages and effect of the present invention easily.
Fig. 1 is referred to Fig. 6.It should be clear that structure, ratio, size depicted in this specification institute accompanying drawings etc., only to
Coordinate the content disclosed in specification, so that those skilled in the art understands and reads, being not limited to the present invention can be real
The qualifications applied, therefore do not have technical essential meaning, the tune of the modification of any structure, the change of proportionate relationship or size
It is whole, in the case where not influenceing the effect of present invention can be generated and the purpose that can reach, all should still fall in disclosed skill
In the range of art content can cover.Meanwhile in this specification it is cited as " on ", " under ", "left", "right", " centre " and
The term of " one " etc., understanding for narration is merely convenient to, and is not used to limit the enforceable scope of the present invention, its relativeness
It is altered or modified, in the case where changing technology contents without essence, when being also considered as the enforceable category of the present invention.
As shown in Figure 1, Figure 2 and Figure 3, the present invention provides a kind of powder discharger of selective laser sintering one side for powder,
It includes：The powder funnel 1 of sintering powder is held,
The leakage tube cell 2 being connected with powder funnel 1, the interior leakage powder passage 23 having for powder of leakage tube cell 2；
The bottom plate 4 being connected with the leakage tube cell bottom, the side of bottom plate 4 have the leakage powder tank 41 of leakage powder, leak powder tank 41
Misplaced with the leakage powder passage 23；
It is placed in bottom plate 4 and leaks the powder-leakage plate 3 between tube cell 2, slide and be connected with leakage tube cell 2, there is row leakage on powder-leakage plate 3
Powder hole 32 (as shown in Figure 6), powder-leakage plate 3 make all powder leakage holes 32 positioned at the underface of the leakage powder passage 23 (see Fig. 2 when sliding
It is shown) or positioned at the surface (as shown in Figure 3) of leakage powder tank 41, when initial, all powder leakage holes 32 are positioned at leakage powder passage 23
Underface.
The powder discharger of the present invention, it uses powder-leakage plate 3 to slide between leakage tube cell 2 and bottom plate 4, passes through powder-leakage plate 3
Slip, realize powder leakage hole 32 and and leak powder passage 23 or leak powder tank 41 and dock, complete powder and be transported to out of leakage powder pipeline 23
Fallen at leakage powder tank 41, realize the quantitatively supplying powder of powder, and powder funnel 1 can supply bag etc. with powder and be joined directly together, and substitute
It is artificial to mend powder.
Leakage tube cell 2 in the present embodiment is connected by two sections pipeline to be formed, as shown in Fig. 2 and Fig. 3, underlying pipe
Road (i.e. hypomere pipe 22) is wider than pipeline above (i.e. epimere pipe 21), and it is flat tube to the leakage tube cell 2 in the present embodiment,
The cross section for leaking powder passage 23 is strip, is easy to corresponding with the powder leakage hole on powder-leakage plate, completes the conveying of powder.See Fig. 4
The concrete structure of epimere pipe 21 is shown, the both ends of epimere pipe 21 are provided with bolt hole 201, and Fig. 5 show the tool of hypomere pipe 22
Body structure, hypomere pipe 22 are provided with mounting hole 202, and being located in by connectors such as bolts in bolt hole 201 and mounting hole 202 will
Epimere pipe 21 and hypomere pipe 22 are fixedly linked.
It is 22 liang of the hypomere pipe in the present embodiment in order to realize the slip of powder-leakage plate that above-mentioned hypomere pipe 22, which is wider than epimere pipe 21,
A strip hole 221 perpendicular with leakage powder passage 23 is respectively equipped with side wall, as shown in Figure 5, is provided with strip hole 221 along length
The sliding bar 222 (as shown in Figure 2) of bar hole length direction extension；The both ends of powder-leakage plate 3 connect a sliding block 31 respectively, and sliding block 31 is inserted
It is located in strip hole 221 and top is exposed, and the sliding block 31 is located on sliding bar 222, and sliding bar 222, which is provided with, to be resetted
Spring 10.The present embodiment uses connection sliding block 31 on powder-leakage plate 3, is located in by sliding block 31 in the strip hole 221 of hypomere pipe 21,
And sliding block 31 can slide under external force driving along sliding bar 222, realize the slip of powder-leakage plate 3, and then realize and powder is leaked on powder-leakage plate
The conveying of powder is completed with leaking powder pipeline or leaking docking for powder tank in hole.
Another embodiment that leakage tube cell and powder-leakage plate as the present invention are slidably connected, above-mentioned leakage tube cell is an entirety
Pipe, simply there is the boss of circumferentially extending in the both sides of leakage tube cell bottom, one and above-mentioned leakage powder passage are provided with each boss
Perpendicular strip hole, strip hole is interior to be provided with the sliding bar extended along strip hole length direction；The both ends of powder-leakage plate connect respectively
One sliding block, sliding block is plugged in strip hole and top is exposed, and sliding block is located on sliding bar, and sliding bar, which is provided with, resets bullet
Spring.
The present invention also provides a kind of selective laser sintering one side powder feeder unit, and as shown in Figure 1, it includes：
Powdering component, including drive component, the line slideway for being laterally located at the top of workbench 5 used in selective sintering
8 and powder-laying roller 6, the powder-laying roller 6 is connected with sliding the drive block 7 on line slideway 8, the drive block 7 with it is described
Drive component transmission is connected；
Powder discharger positioned at the side of workbench 5, powder is supplied using selective laser sintering one side as described above
Powder discharger, drive block 7 can contact under the drive of drive component with powder-leakage plate 3, and under the driving of drive component
Drive powder-leakage plate 3 to slide, powder is dropped down onto out of powder discharger on the workbench 5, powder-laying roller 6 moves to leaked powder simultaneously
The outside at end；Drive component drives the antiport of drive block 7, and the promotion of powder-laying roller 6 is leaked powder and is laid on workbench 5.
The present invention uses above-mentioned powder discharger, and is used as the driving for driving powder-leakage plate to slide by the use of the drive block of powder-laying roller
Powder is quantitatively leaked in part, realization, completes powdering by powder-laying roller, makes entirely to supply powder powdering engineering more accurate.
Preferably to realize accurate control, above-mentioned line slideway 8 is provided with two postive stop baffles 81,83, two limiting blocks
Plate 81,83 corresponds respectively to the both ends of workbench 5, using the setting of two postive stop baffles, makes drive component in operation to limit
Corresponding antiport is made at the baffle plate of position, to avoid powder-laying roller movement travel from exceeding workbench.
Speed limit baffle plate 82 is additionally provided with above-mentioned line slideway 8, speed limit baffle plate 82 corresponds at powder discharger, makes drive component
When at operation to the speed limit baffle plate 82, the signal of speed limit is obtained so that drive block 7 contacts with powder-leakage plate 3, driving powder-leakage plate 3 is slided
It is dynamic, complete leakage powder.
The both ends of above-mentioned workbench 5 are equipped with excessive powder cylinder 9, and the overflow upper surface of powder cylinder 9 and the upper surface of workbench 5
Concordantly.Above-mentioned drive component can include motor and with the timing belt that be connected of motor transmission, above-mentioned drive block 7 and
Timing belt is connected, and motor drives drive block to be moved along above-mentioned line slideway 8 by timing belt.
The specific of the present invention be for powder process：First, the synchronized V belt translation of motor in power spreading device, powdering is driven
Roller 6 moves right along line slideway 8, and as shown in Figure 1, powder-laying roller 6 slows down when moving at speed limit baffle plate 82, and drive block 7 touches
Powder-leakage plate 3 in powder discharger, it is specially in the present embodiment：The sliding block 31 that drive block 7 is touched on powder-leakage plate 3, and compress length
Back-moving spring 10 in bar hole 221, and then drive powder-leakage plate 3 to move right, drive block 7 is until move to positioned at the spacing of right-hand member
Stopped at baffle plate 83, now the powder leakage hole 32 on powder-leakage plate 3 moves to Lou both surfaces of powder tank 42 and docked, in powder leakage hole 32
Powder just drained to by the leakage powder tank 41 of lower section on workbench 5, as shown in Figure 3, now powder-laying roller 6 be in leaks powder
Right side；The counter motion under the driving of motor of powder-laying roller 6, i.e., to left movement, and the powder-leakage plate 3 in powder discharger passes through again
To left movement, powder leakage hole 32 separates and then toward left movement and finally with leaking powder pipeline the reaction force of position spring 10 with leakage powder tank 4
23 connect, and carry out mending powder operation, as shown in Figure 2；Powder-laying roller 6 is simultaneously by the evenly laid out upper sintering in moulding cylinder of leaked powder
On face, pave rear unnecessary powder and unloaded by powder-laying roller 6 into the excessive powder cylinder 9 of work platform sinistral, so far powder-laying roller 6 is moved to a left side
At the postive stop baffle 81 at end, motor stop motion, so as to which one layer on start-up operation face is powder sintered, after the completion of sintering,
Powder declines a thickness in moulding cylinder, repeats aforesaid operations, until workpiece all complete by sintering.The powder feeder unit of the present invention,
It can accurate quantification supply powder, can be realized automatically as needed for powder.
In summary, for the powder discharger and powder feeder unit of powder, it is used selective laser sintering one side of the invention
Powder-leakage plate is slided between leakage tube cell and bottom plate, by the slip of powder-leakage plate, realizes powder leakage hole and leakage powder passage or leakage powder tank
Docking, complete powder and be transported to and Lou fallen at powder tank out of leakage powder pipeline, realize the quantitatively supplying powder of powder, and powder funnel can
It is joined directly together with supplying bag etc. with powder, substitutes artificial benefit powder；Powder-leakage plate is driven to move using the drive block of powder-laying roller is driven,
Realize the function of supplying powder powdering automatically.So the present invention effectively overcomes various shortcoming of the prior art and has high industrial
Value.
The above-described embodiments merely illustrate the principles and effects of the present invention, not for the limitation present invention.It is any ripe
Know the personage of this technology all can carry out modifications and changes under the spirit and scope without prejudice to the present invention to above-described embodiment.Cause
This, those of ordinary skill in the art is complete without departing from disclosed spirit and institute under technological thought such as
Into all equivalent modifications or change, should by the present invention claim be covered.
Claims (8)
1. a kind of selective laser sintering one side is for the powder discharger of powder, it is characterised in that including：
Hold the powder funnel (1) of sintering powder；
The leakage tube cell (2) being connected with powder funnel, the interior leakage powder passage (23) having for powder of leakage tube cell (2), and the leakage powder
The cross section of passage (23) is strip；
The bottom plate (4) being connected with the leakage tube cell bottom, the side of bottom plate (4) have the leakage powder tank (41) of leakage powder, leak powder tank
(41) misplaced with the leakage powder passage (23)；
It is placed in the bottom plate (4) and leaks the powder-leakage plate (3) between tube cell (2), slides and be connected with the leakage tube cell (2), powder-leakage plate
(3) there is row's powder leakage hole (32), powder-leakage plate (3) makes all powder leakage holes (32) positioned at the leakage powder passage (23) when sliding on
Underface or positioned at the surface of the leakage powder tank (41), when initial, all powder leakage holes (32) are positioned at leakage powder passage (23)
Underface.
2. selective laser sintering one side according to claim 1 is for the powder discharger of powder, it is characterised in that：The leakage
Tube cell (2) is connected by two sections pipeline to be formed, and underlying pipeline is wider than pipeline above.
3. selective laser sintering one side according to claim 1 is for the powder discharger of powder, it is characterised in that：The leakage
Boss of the both sides of tube cell bottom with circumferentially extending, each boss are interior perpendicular with the leakage powder passage (23) provided with one
Strip hole (221), strip hole (221) is interior to be provided with the sliding bar (222) extended along strip hole length direction；The powder-leakage plate (3)
Both ends connect a sliding block (31) respectively, the sliding block (31) is plugged in the strip hole (221) and top is exposed, and institute
State sliding block (31) to be located on sliding bar (222), sliding bar (222) is provided with back-moving spring (10).
A kind of 4. selective laser sintering one side powder feeder unit, it is characterised in that：Including：
Powdering component, including drive component, laterally the line slideway (8) above the workbench used in the selective sintering with
And powder-laying roller (6), the powder-laying roller (6) are connected with sliding the drive block (7) on line slideway (8), the drive block (7)
It is connected with drive component transmission；
Powder discharger positioned at the workbench side, supplied using selective laser sintering one side as claimed in claim 1
The powder discharger of powder, the drive block (7) can contact under the drive of drive component with the powder-leakage plate (3), and drive
Drive powder-leakage plate (3) to slide under the driving of dynamic component, powder is dropped down onto out of powder discharger on the workbench (5), it is described
Powder-laying roller (6) while move to the outside of leaked powder；Drive component drives drive block (7) antiport, and powder-laying roller (6) promotes
Leaked powder is laid on the workbench (5).
5. selective laser sintering one side powder feeder unit according to claim 4, it is characterised in that：The line slideway
(8) two postive stop baffles (81,83) are provided with, two postive stop baffles (81,83) correspond respectively to the two of the workbench (5)
End.
6. selective laser sintering one side powder feeder unit according to claim 4, it is characterised in that：The line slideway
(8) speed limit baffle plate (82) is additionally provided with, speed limit baffle plate (82) corresponds at the powder discharger.
7. selective laser sintering one side powder feeder unit according to claim 4, it is characterised in that：The leakage tube cell bottom
Both sides there is the boss of circumferentially extending, one is provided with each boss and leaks the perpendicular strip hole of powder passage (23) with described
(221) sliding bar (222) extended along strip hole length direction, is provided with strip hole (221)；The both ends of the powder-leakage plate (3)
A sliding block (31) is connected respectively, and the sliding block (31) is plugged in the strip hole (221) and top is exposed, and sliding block (31)
It is located on sliding bar (222), sliding bar (222) is provided with back-moving spring (10)；The drive block (7) is in the drive component
Drive under can be in contact with sliding block (31) top, with drive powder-leakage plate (3) slide.
8. selective laser sintering one side powder feeder unit according to claim 4, it is characterised in that：The workbench
(5) both ends are equipped with excessive powder cylinder (9), and the upper surface for the powder cylinder (9) that overflows is concordant with the upper surface of the workbench (5).
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| CN105710372B true CN105710372B (en) | 2018-01-09 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106180716A (en) * | 2016-08-31 | 2016-12-07 | 安徽拓宝增材制造科技有限公司 | The powder feeder unit of Selective Laser Sintering |
| CN108115932A (en) * | 2017-11-27 | 2018-06-05 | 安徽拓宝增材制造科技有限公司 | A kind of sieve powder device of 3D printing device |
| CN108097954A (en) * | 2018-01-19 | 2018-06-01 | 浙江万丰科技开发股份有限公司 | A kind of 3D printer quantitatively supplying powder hopper |
| CN108687347A (en) * | 2018-07-13 | 2018-10-23 | 吉林大学 | A kind of SLM3D 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 |
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