CN105710372A - Powder leakage device and powder supply device for selective laser sintering single side powder supply - Google Patents
Powder leakage device and powder supply device for selective laser sintering single side powder supply Download PDFInfo
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- CN105710372A CN105710372A CN201610221483.7A CN201610221483A CN105710372A CN 105710372 A CN105710372 A CN 105710372A CN 201610221483 A CN201610221483 A CN 201610221483A CN 105710372 A CN105710372 A CN 105710372A
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- 239000000843 powder Substances 0.000 title claims abstract description 266
- 238000000110 selective laser sintering Methods 0.000 title claims abstract description 30
- 238000005245 sintering Methods 0.000 claims abstract description 9
- 230000005540 biological transmission Effects 0.000 claims description 5
- 230000002337 anti-port Effects 0.000 claims description 4
- 230000033001 locomotion Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 230000007480 spreading Effects 0.000 description 6
- 238000003892 spreading Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 238000003032 molecular docking Methods 0.000 description 5
- 238000000465 moulding Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000007493 shaping process Methods 0.000 description 3
- 238000010146 3D printing Methods 0.000 description 2
- 239000006052 feed supplement Substances 0.000 description 2
- 230000002411 adverse 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
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 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
- 238000011002 quantification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000009490 roller compaction Methods 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
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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
- B22F12/60—Planarisation devices; Compression devices
- B22F12/63—Rollers
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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
- 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 invention provides a powder leakage device and a powder supply device for selective laser sintering single side powder supply. The powder leakage device comprises a powder hopper for accommodating sintering powder, a powder leakage tube connected with the powder hopper, a bottom plate connected with the bottom end of the powder leakage tube, and a powder leakage plate arranged between the bottom plate and the powder leakage tube, wherein a powder leakage channel for powder supply is arranged inside the powder leakage tube; a powder leakage groove for powder leakage is formed in one side of the bottom plate; the powder leakage groove is staggered with the powder leakage channel; the powder leakage plate is connected with the powder leakage tube in a sliding manner; a row of powder leakage holes are formed in the powder leakage plate; when the powder leakage plate slides, all the powder leakage holes are positioned right below the powder leakage channel or are positioned right above the powder leakage groove; and initially, all the powder leakage holes are positioned right below the powder leakage channel. According to the powder leakage device and the powder supply device for selective laser sintering single side powder supply, the accurate and quantitative powder supply is automatically achieved, and the manual powder supply is not required.
Description
Technical field
The present invention relates to selective laser sintering and moulding technology field, particularly relate to a kind of selective laser sintering one side for the powder discharger of powder and powder feeder unit.
Background technology
At present, 3D printer occurs gradually in the visual field of people, and the 3D printer of selective laser sintering (be called for short SLS) also increasingly embodies considerable effect as a kind of important means of industrial processes.Cad model, with pressed powder for raw material, is converted into entity by this technology.According to factors such as material character, product structure and technological requirements, the power spreading device of the SLS3D printing device powder that uniform spreading last layer is very thin on work platforms is for the sintering of a layer cross section shape, and the thickness of powder bed, density, the uniformity etc. all directly affect sintering quality.
It is affect 3D printing shaping quality that the paving of powder is covered, the critical process of shaping speed and reliability, it includes powder supply and roller compaction two parts, in traditional powder sintered quick shaping, the multiple working cylinder of the many employings of selective laser sintering is for powder mode, namely the working cylinder being arranged in parallel and confession moulding cylinder, in the course of the work, after one layer of powder forming completes, working face in working cylinder declines one layer, rise one layer for the piston in moulding cylinder, release a certain amount of powder, by powder-laying roller or scraper plate, powder is layered on working face, after completing paving powder, unnecessary powder is unloaded to both sides the powder cylinder that overflows.During due to paving powder, powder is completely exposed in the work environment, and powder is shed at the powder bed completed and works with exterior domain, impact paving opaque amount by the centrifugal force that powder-laying roller motion produces, and the working environment of equipment is polluted.
In order to improve paving powder efficiency further, improve paving opaque amount.SLS is further improved by people for powder power spreading device.Such as the powder-supply system that Tongji University's university research goes out, it adopts for powder mode, namely carries out quantitatively supplying powder above work platforms, and integrated with powder-laying roller motion, forms independent power spreading device module；The 3D device space printed has been saved in this design in original degree, for powder process also more accurate, cleaning, but leakage powder process is needed accurately to control by this equipment, such as leaking powder amount and leakage powder speed and along with the quantitative relationship between power spreading device translational speed, this is high especially to controlling system requirements, in addition, after the powder discharger of which repeatedly lays layer dusty material on the table, sometimes for manually carrying out feed supplement, make troubles to operator, and affect forming efficiency.
Chinese patent CN203409251 proposes one for Selective Laser Sintering automatic feeding powder feeder unit, this device is provided with material storing box, when powder-laying roller repeatedly spreads powder, set point number on computer, the number of times being touched postive stop baffle by powder-laying roller is counted, the data of record are passed to discharge controller by enumerator, discharge controller control the outflow of powder in material storing box.Although this device solves the problem of the artificial feed supplement that said apparatus is likely to occur, but be the increase in the space of 3D printing device, and structure be complicated, it is necessary to more transmission with control device, be unfavorable for the control of technique and ensure equipment dependability.
Summary of the invention
The shortcoming of prior art in view of the above, it is an object of the invention to provide a kind of selective laser sintering one side for the powder discharger of powder and powder feeder unit, for solve cannot accurately for the problem of powder in selective laser sintering technique in prior art.
For achieving the above object and other relevant purposes, the present invention provides a kind of selective laser sintering one side for the powder discharger of powder, comprising:
Hold the powder funnel of sintering powder；
The leakage tube cell being connected with powder funnel, has the leakage powder passage for powder in leakage tube cell；
With the base plate that described leakage tube cell bottom is connected, the side of base plate has the leakage powder groove of leakage powder, leakage powder groove and the dislocation of described leakage powder passage；
It is placed in the powder-leakage plate between described base plate and leakage tube cell, slide with described leakage tube cell and be connected, powder-leakage plate has row's powder leakage hole, powder-leakage plate makes all powder leakage holes be positioned at the underface of described leakage powder passage or be positioned at the surface of described leakage powder groove when sliding, time initial, all powder leakage holes are positioned at the underface of leakage powder passage.
Preferably, described leakage tube cell is connected by two sections pipeline and constitutes, and the pipeline being positioned below is wider than pipeline above.
Preferably, the both sides of described leakage tube cell bottom have circumferentially extending boss, are provided with a strip hole perpendicular with described leakage powder passage in each boss, are provided with the sliding bar extended along strip hole length direction in strip hole；The two ends of described powder-leakage plate connect a slide block respectively, and described slide block is plugged in described strip hole and top is exposed, and described slide block is located on sliding bar, and sliding bar is provided with back-moving spring.
Preferably, the cross section of described leakage powder passage is strip.
The present invention also provides for a kind of selective laser sintering one side powder feeder unit, comprising:
Paving component powder, including driving assembly, being laterally located at the line slideway above the work platforms used by selective sintering and powder-laying roller, described powder-laying roller is connected with the drive block being located on line slideway that slides, and described drive block is connected with described driving assembly transmission；
It is positioned at the powder discharger of described work platforms side, adopt selective laser sintering one side as above for the powder discharger of powder, described drive block can contact with described powder-leakage plate under the drive driving assembly, and drive powder-leakage plate to slide under the driving driving assembly, making powder drop down onto in powder discharger described work platforms, described powder-laying roller moves to the outside of leaked powder simultaneously；Driving assembly to drive drive block antiport, powder-laying roller promotes leaked powder to be laid on described work platforms.
Preferably, described line slideway is provided with two postive stop baffles, and two postive stop baffles correspond respectively to the two ends of described work platforms.
Preferably, described line slideway being additionally provided with speed limit baffle plate, speed limit baffle plate corresponds to described powder discharger place.
Preferably, the both sides of described leakage tube cell bottom have circumferentially extending boss, are provided with a strip hole perpendicular with described leakage powder passage in each boss, are provided with the sliding bar extended along strip hole length direction in strip hole；The two ends of described powder-leakage plate connect a slide block respectively, and described slide block is plugged in described strip hole and top is exposed, and slide block is located on sliding bar, and sliding bar is provided with back-moving spring；Described drive block can contact with slide block top under the drive of described driving assembly, to drive powder-leakage plate to slide.
Preferably, the two ends of described work platforms are equipped with excessive powder cylinder, and the upper surface of excessive powder cylinder is concordant with the upper surface of described work platforms.
As mentioned above, the selective laser sintering one side of the present invention is for the powder discharger of powder and powder feeder unit, have the advantages that it adopts powder-leakage plate to slide and is located at Lou between tube cell and base plate, by the slip of powder-leakage plate, realize powder leakage hole and leakage powder passage or leakage the docking of powder groove, complete powder and in leakage powder pipeline, be transported to Lou powder groove fall, it is achieved the quantitatively supplying powder of powder, and powder funnel can supply bag etc. with powder and be joined directly together, substitute and manually mend powder；The drive block driving powder-laying roller is utilized to drive powder-leakage plate to move, it is achieved automatically for the function of powder paving powder.
Accompanying drawing explanation
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 in the powder discharger of the present invention powder-leakage plate and is in high order end view.
Fig. 3 is shown as in the powder discharger of the present invention powder-leakage plate 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.
Element numbers explanation
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 installing holes
3 powder-leakage plates
31 slide blocks
32 powder leakage holes
4 base plates
41 leakage powder grooves
5 work platformses
6 powder-laying rollers
7 drive blocks
8 line slideways
81,83 postive stop baffle
82 speed limit baffle plates
9 excessive powder cylinders
10 back-moving springs
Detailed description of the invention
By particular specific embodiment, embodiments of the present invention being described below, those skilled in the art the content disclosed by this specification can understand other advantages and effect of the present invention easily.
Refer to Fig. 1 to Fig. 6.Notice, the structure of this specification institute accompanying drawings depicted, ratio, size etc., all only in order to coordinate the disclosed content of description, understand for those skilled in the art and read, it is not limited to the enforceable qualifications of the present invention, therefore do not have technical essential meaning, the adjustment of the modification of any structure, the change of proportionate relationship or size, under not affecting effect that the present invention can be generated by and the purpose that can reach, all should still drop in the scope that disclosed technology contents can be contained.Simultaneously, in this specification cited as " on ", D score, "left", "right", " centre " and " one " etc. term, it is merely convenient to understanding of narration, and it is not used to limit the enforceable scope of the present invention, the change of its relativeness or adjustment, changing under 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 selective laser sintering one side for the powder discharger of powder, comprising: hold the powder funnel 1 of sintering powder,
The leakage tube cell 2 being connected with powder funnel 1, has the leakage powder passage 23 for powder in leakage tube cell 2；
With the base plate 4 that described leakage tube cell bottom is connected, the side of base plate 4 has the leakage powder groove 41 of leakage powder, and leakage powder groove 41 misplaces with described leakage powder passage 23；
It is placed in the powder-leakage plate 3 between base plate 4 and leakage tube cell 2, slide with leakage tube cell 2 and be connected, powder-leakage plate 3 has row's powder leakage hole 32 (as shown in Figure 6), powder-leakage plate 3 makes all powder leakage holes 32 be positioned at the underface (as shown in Figure 2) of described leakage powder passage 23 or be positioned at the surface (as shown in Figure 3) of leakage powder groove 41 when sliding, time initial, all powder leakage holes 32 are positioned at the underface of leakage powder passage 23.
The powder discharger of the present invention, it adopts powder-leakage plate 3 slip to be located at Lou between tube cell 2 and base plate 4, slip by powder-leakage plate 3, realize powder leakage hole 32 and leak powder passage 23 or leak docking of powder groove 41, complete powder to be transported to Lou powder groove 41 and fall in leakage powder pipeline 23, realize the quantitatively supplying powder of powder, and powder funnel 1 can supply bag etc. with powder and be joined directly together, substitute and manually mend powder.
Leakage tube cell 2 in the present embodiment is connected by two sections pipeline and constitutes, see shown in Fig. 2 and Fig. 3, the pipeline (i.e. hypomere pipe 22) being positioned below is wider than pipeline (i.e. epimere pipe 21) above, leakage tube cell 2 in the present embodiment its be flat tube, the cross section of leakage powder passage 23 is strip, it is easy to corresponding with the powder leakage hole on powder-leakage plate, completes the conveying of powder.It is the concrete structure of epimere pipe 21 as shown in Figure 4, the two ends of epimere pipe 21 are provided with bolt hole 201, and Fig. 5 show the concrete structure of hypomere pipe 22, hypomere pipe 22 is provided with installing hole 202, is located in by connectors such as bolts in bolt hole 201 and installing hole 202 and epimere pipe 21 and hypomere pipe 22 is fixedly linked.
Above-mentioned hypomere pipe 22 is wider than the slip that epimere pipe 21 is to realize powder-leakage plate, hypomere pipe 22 two side in the present embodiment is respectively equipped with a strip hole 221 perpendicular with leakage powder passage 23, as shown in Figure 5, the sliding bar 222 (as shown in Figure 2) extended along strip hole length direction it is provided with in strip hole 221；The two ends of powder-leakage plate 3 connect a slide block 31 respectively, and slide block 31 is plugged in strip hole 221 and top is exposed, and described slide block 31 is located on sliding bar 222, and sliding bar 222 is provided with back-moving spring 10.The present embodiment adopts connection sliding block 31 on powder-leakage plate 3, it is located in the strip hole 221 of hypomere pipe 21 by slide block 31, and slide block 31 can slide along sliding bar 222 under external force drives, realize the slip of powder-leakage plate 3, and then realize docking of powder leakage hole on powder-leakage plate and leakage powder pipeline or leakage powder groove, complete the conveying of powder.
As another embodiment that leakage tube cell and the powder-leakage plate of the present invention are slidably connected, above-mentioned leakage tube cell is an integral tube, simply in the both sides of leakage tube cell bottom, there is circumferentially extending boss, it is provided with a strip hole perpendicular with above-mentioned leakage powder passage in each boss, in strip hole, is provided with the sliding bar extended along strip hole length direction；The two ends of powder-leakage plate connect a slide block respectively, and slide block is plugged in strip hole and top is exposed, and slide block is located on sliding bar, and sliding bar is provided with back-moving spring.
The present invention also provides for a kind of selective laser sintering one side powder feeder unit, as shown in Figure 1, comprising:
Paving component powder, including driving assembly, being laterally located at the line slideway 8 above the work platforms 5 used by selective sintering and powder-laying roller 6, described powder-laying roller 6 is connected with the drive block 7 being located on line slideway 8 that slides, and described drive block 7 is connected with described driving assembly transmission；
It is positioned at the powder discharger of described work platforms 5 side, adopt selective laser sintering one side as above for the powder discharger of powder, drive block 7 can contact with powder-leakage plate 3 under the drive driving assembly, and drive powder-leakage plate 3 to slide under the driving driving assembly, making powder drop down onto in powder discharger described work platforms 5, powder-laying roller 6 moves to the outside of leaked powder simultaneously；Driving assembly to drive drive block 7 antiport, powder-laying roller 6 promotes leaked powder to be laid on work platforms 5.
The present invention adopts above-mentioned powder discharger, and utilizes the drive block actuator as driving powder-leakage plate slip of powder-laying roller, it is achieved quantitatively leaks powder, completes paving powder by powder-laying roller, makes whole more accurate for powder paving powder engineering.
For better realizing accurate control, above-mentioned line slideway 8 is provided with two postive stop baffles 81,83, two postive stop baffles 81,83 correspond respectively to the two ends of work platforms 5, adopt the setting of two postive stop baffles, driving assembly is made to make corresponding antiport in operation to postive stop baffle place, to avoid powder-laying roller movement travel beyond work platforms.
Being additionally provided with speed limit baffle plate 82 on above-mentioned line slideway 8, speed limit baffle plate 82, corresponding to powder discharger place, makes driving assembly when running to this speed limit baffle plate 82 place, obtains the signal of speed limit so that drive block 7 contacts with powder-leakage plate 3, drives powder-leakage plate 3 to slide, completes Lou powder.
The two ends of above-mentioned work platforms 5 are equipped with excessive powder cylinder 9, and the upper surface of excessive powder cylinder 9 is concordant with the upper surface of work platforms 5.Above-mentioned driving assembly can include drive motor and the Timing Belt being connected with drive motor transmission, and above-mentioned drive block 7 is connected with Timing Belt, and drive motor drives drive block to move along above-mentioned line slideway 8 by Timing Belt.
The concrete of the present invention for powder process is: first, the synchronized V belt translation of drive motor in power spreading device, powder-laying roller 6 linearly guide rail 8 is driven to move right, as shown in Figure 1, powder-laying roller 6 slows down when moving to speed limit baffle plate 82 place, drive block 7 touches the powder-leakage plate 3 in powder discharger, particularly as follows: drive block 7 touches the slide block 31 on powder-leakage plate 3 in the present embodiment, and compress the back-moving spring 10 in strip hole 221, and then drive powder-leakage plate 3 to move right, drive block 7 is until moving to postive stop baffle 83 place being positioned at right-hand member and stopping, now the powder leakage hole 32 on powder-leakage plate 3 moves to both surfaces docking of Lou powder groove 42, powder in powder leakage hole 32 just drains on work platforms 5 by the leakage powder groove 41 of lower section, as shown in Figure 3, now powder-laying roller 6 is in the right side of leaked powder；Powder-laying roller 6 adverse movement under the driving of drive motor, namely to left movement, and powder-leakage plate in powder discharger 3 by the counteracting force of back-moving spring 10 to left movement, powder leakage hole 32 separate with leakage powder groove 4 so that toward left movement and final with leak powder pipeline 23 and connect, carry out mending powder operation, as shown in Figure 2；Powder-laying roller 6 simultaneously by evenly laid out for leaked powder on a upper sintered surface of moulding cylinder, powder unnecessary after paving is unloaded to the excessive powder cylinder 9 of work platform sinistral by powder-laying roller 6, so far powder-laying roller 6 moves to postive stop baffle 81 place of left end, drive motor stop motion, thus start working on face one layer is powder sintered, after having sintered, one thickness of powder decline in moulding cylinder, repeat aforesaid operations, until workpiece has all sintered.The powder feeder unit of the present invention, it can supply powder by accurate quantification, can be automatically obtained as required for powder.
In sum, the selective laser sintering one side of the present invention is for the powder discharger of powder and powder feeder unit, it adopts powder-leakage plate slip to be located at Lou between tube cell and base plate, by the slip of powder-leakage plate, realize powder leakage hole and leakage powder passage or leakage the docking of powder groove, complete powder and in leakage powder pipeline, be transported to Lou powder groove fall, it is achieved the quantitatively supplying powder of powder, and powder funnel can supply bag etc. with powder and be joined directly together, substitute and manually mend powder；The drive block driving powder-laying roller is utilized to drive powder-leakage plate to move, it is achieved automatically for the function of powder paving powder.So, the present invention effectively overcomes various shortcoming of the prior art and has high industrial utilization.
Above-described embodiment is illustrative principles of the invention and effect thereof only, not for the restriction present invention.Above-described embodiment all under the spirit and category of the present invention, can be modified or change by any those skilled in the art.Therefore, art has usually intellectual such as modifying without departing from all equivalences completed under disclosed spirit and technological thought or change, must be contained by the claim of the present invention.
Claims (9)
1. a 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, has leakage powder passage (23) for powder in leakage tube cell (2)；
With the base plate (4) that described leakage tube cell bottom is connected, the side of base plate (4) has leakage powder groove (41) of leakage powder, leakage powder groove (41) and the dislocation of described leakage powder passage (23)；
It is placed in the powder-leakage plate (3) between described base plate (4) and leakage tube cell (2), slide with described leakage tube cell (2) and be connected, powder-leakage plate (3) has row's powder leakage hole (32), powder-leakage plate (3) makes all powder leakage holes (32) be positioned at the underface of described leakage powder passage (23) or be positioned at the surface of described leakage powder groove (41) when sliding, time initial, all powder leakage holes (32) are positioned at the underface of leakage powder passage (23).
2. selective laser sintering one side according to claim 1 is for the powder discharger of powder, it is characterised in that: described leakage tube cell (2) is connected by two sections pipeline and constitutes, and the pipeline being positioned below is wider than pipeline above.
3. selective laser sintering one side according to claim 1 is for the powder discharger of powder, it is characterized in that: the both sides of described leakage tube cell bottom have circumferentially extending boss, it is provided with a strip hole (221) perpendicular with described leakage powder passage (23) in each boss, in strip hole (221), is provided with the sliding bar (222) extended along strip hole length direction；The two ends of described powder-leakage plate (3) connect a slide block (31) respectively, described slide block (31) is plugged in described strip hole (221) and top is exposed, and described slide block (31) is located on sliding bar (222), and sliding bar (222) is provided with back-moving spring (10).
4. selective laser sintering one side according to claim 1 is for the powder discharger of powder, it is characterised in that: the cross section of described leakage powder passage (23) is strip.
5. a selective laser sintering one side powder feeder unit, it is characterised in that: including:
Paving component powder, including driving assembly, being laterally located at the line slideway (8) above the work platforms used by selective sintering and powder-laying roller (6), the drive block (7) that described powder-laying roller (6) is located on line slideway (8) with slip is connected, and described drive block (7) is connected with described driving assembly transmission；
It is positioned at the powder discharger of described work platforms side, adopt selective laser sintering one side as claimed in claim 1 for the powder discharger of powder, described drive block (7) can contact with described powder-leakage plate (3) under the drive driving assembly, and drive powder-leakage plate (3) to slide under the driving driving assembly, making powder drop down onto described work platforms (5) in powder discharger, described powder-laying roller (6) moves to the outside of leaked powder simultaneously；Driving assembly to drive drive block (7) antiport, powder-laying roller (6) promotes leaked powder to be laid on described work platforms (5).
6. selective laser sintering one side powder feeder unit according to claim 5, it is characterized in that: described line slideway (8) is provided with two postive stop baffles (81,83), two postive stop baffles (81,83) correspond respectively to the two ends of described work platforms (5).
7. selective laser sintering one side powder feeder unit according to claim 5, it is characterised in that: being additionally provided with speed limit baffle plate (82) on described line slideway (8), speed limit baffle plate (82) is corresponding to described powder discharger place.
8. selective laser sintering one side powder feeder unit according to claim 5, it is characterized in that: the both sides of described leakage tube cell bottom have circumferentially extending boss, it is provided with a strip hole (221) perpendicular with described leakage powder passage (23) in each boss, in strip hole (221), is provided with the sliding bar (222) extended along strip hole length direction；The two ends of described powder-leakage plate (3) connect a slide block (31) respectively, described slide block (31) is plugged in described strip hole (221) and top is exposed, and slide block (31) is located on sliding bar (222), and sliding bar (222) is provided with back-moving spring (10)；Described drive block (7) can contact with slide block (31) top under the drive of described driving assembly, to drive powder-leakage plate (3) to slide.
9. selective laser sintering one side powder feeder unit according to claim 1, it is characterized in that: the two ends of described work platforms (5) are equipped with excessive powder cylinder (9), and the upper surface of excessive powder cylinder (9) is concordant with the upper surface of described work platforms (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610221483.7A CN105710372B (en) | 2016-04-11 | 2016-04-11 | Powder discharger and powder feeder unit of the selective laser sintering one side for powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610221483.7A CN105710372B (en) | 2016-04-11 | 2016-04-11 | Powder discharger and powder feeder unit of the selective laser sintering one side for powder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105710372A true CN105710372A (en) | 2016-06-29 |
| CN105710372B CN105710372B (en) | 2018-01-09 |
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| CN201610221483.7A Active CN105710372B (en) | 2016-04-11 | 2016-04-11 | Powder discharger and powder feeder unit of the selective laser sintering one side for powder |
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| 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 |
| 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 |
| 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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