CN110065233A - A kind of increasing material manufacturing power spreading device of the flexible scraper plate of band - Google Patents
A kind of increasing material manufacturing power spreading device of the flexible scraper plate of band Download PDFInfo
- Publication number
- CN110065233A CN110065233A CN201910354760.5A CN201910354760A CN110065233A CN 110065233 A CN110065233 A CN 110065233A CN 201910354760 A CN201910354760 A CN 201910354760A CN 110065233 A CN110065233 A CN 110065233A
- Authority
- CN
- China
- Prior art keywords
- scraper plate
- flexible
- powdering
- powdering roller
- flexible scraper
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000000463 material Substances 0.000 title claims abstract description 27
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- 238000003892 spreading Methods 0.000 title claims abstract description 20
- 238000000227 grinding Methods 0.000 claims abstract description 68
- 230000005540 biological transmission Effects 0.000 claims abstract description 7
- 230000005571 horizontal transmission Effects 0.000 claims abstract description 6
- 230000001360 synchronised effect Effects 0.000 claims abstract description 6
- 238000006073 displacement reaction Methods 0.000 claims abstract description 3
- 239000002131 composite material Substances 0.000 claims description 9
- 229920001971 elastomer Polymers 0.000 claims description 9
- 239000005060 rubber Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- 238000005516 engineering process Methods 0.000 claims description 5
- 239000004816 latex Substances 0.000 claims description 4
- 229920000126 latex Polymers 0.000 claims description 4
- 229920003048 styrene butadiene rubber Polymers 0.000 claims description 4
- 238000000975 co-precipitation Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000000843 powder Substances 0.000 description 28
- 238000007790 scraping Methods 0.000 description 9
- 238000000465 moulding Methods 0.000 description 5
- 239000006229 carbon black Substances 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 239000004594 Masterbatch (MB) Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000006071 cream Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/10—Processes of additive manufacturing
- B29C64/141—Processes of additive manufacturing using only solid materials
- B29C64/153—Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
- B29C64/205—Means for applying layers
- B29C64/218—Rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/30—Auxiliary operations or equipment
- B29C64/35—Cleaning
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Engineering (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The present invention provides a kind of increasing material manufacturing power spreading devices of the flexible scraper plate of band, comprising: forming worktable, powdering roller rotation transmission device, is mounted on flexible screeding device on supporting mechanism frame, the powdering roller being mounted on supporting mechanism frame at powdering roller horizontal transmission；The supporting mechanism frame is fixed on synchronous belt, and is moved back and forth under the driving of powdering roller horizontal transmission along rectilinear orbit, and the powdering roller rotation transmission device is mounted on supporting mechanism frame and drives powdering roller rotation；Arc shape is made in the flexibility scraper plate, is allowed to fit with powdering roller；The flexibility scraper plate is fixed on flexible scraper plate fixing piece by adjustable bolt, adjusts flexible scraper plate along the displacement in adjustable bolt axial direction, to adjust the compactness between flexible scraper plate and powdering roller surfaces by adjustable bolt.Above-mentioned power spreading device, powdering is high-efficient and quantity of sintered parts is good.
Description
Technical field
The present invention relates to material increasing fields, and in particular to a kind of increasing material manufacturing power spreading device of the flexible scraper plate of band.
Background technique
Increases material manufacturing technology based on powder is to obtain the increases material manufacturing technology of wide popularization and application at present, it has fast
Prompt, convenient feature can produce the part for the complicated shape structure that conventional method is difficult to realize, not only simplify processing work
Skill improves efficiency, and good mechanical property, is widely used in the various industries such as aviation, mold, automobile, biologic medical.
Powder supply mechanism is one of the critical component in increasing material manufacturing equipment, and the quality of powdering quality produces the quality of molded part
Raw very big influence.Currently, mainstream powder supply mechanism is mainly with roller, scraper-type.Powdering system passes through roller or the machinery of scraper plate
During powder is layered on forming worktable by movement, subtle powder is easy to be adhered to powdering roller due to the reason of electrostatic etc.
Surface on, cause the flatness degree of powdering poor, powdering inefficiency, powdering quality reduce, thus influence produce part matter
Amount.Therefore flexible scraper plate and powdering roller compactness can be adjusted according to the actual situation by needing a kind of flexibility to scrape version, and Lai Shiying is not
With the printing of type powder；Rubber scraping article can be filled out on side bayonet slot in the flexibility scraper plate, to guarantee the fine powder on powdering roller
It effectively removes.
Summary of the invention
To be solved by this invention is defect existing for existing power spreading device or deficiency, and it is high-efficient to provide a kind of powdering thus
And the power spreading device that quantity of sintered parts is good.
In order to solve the above technical problems, the present invention provides a kind of increasing material manufacturing powdering of the flexible scraper plate of band dresses
It sets, comprising: forming worktable, powdering roller rotation transmission device, is mounted on support machine at powdering roller horizontal transmission
Flexible screeding device, the powdering roller being mounted on supporting mechanism frame on framework；
The supporting mechanism frame is fixed on synchronous belt, and under the driving of powdering roller horizontal transmission along
Rectilinear orbit moves back and forth, and the powdering roller rotation transmission device is mounted on supporting mechanism frame and drives powdering roller certainly
Turn；
Arc shape is made in the flexibility scraper plate, is allowed to fit with powdering roller；
The flexibility scraper plate is fixed on flexible scraper plate fixing piece by adjustable bolt, is adjusted flexibility by adjustable bolt and is scraped
Plate is along the displacement in adjustable bolt axial direction, to adjust the compactness between flexible scraper plate and powdering roller surfaces.
In a preferred embodiment: the shape of cuboid is made in the flexible scraper plate top half, passes through its upper surface hole
Hole is fixed on flexible scraper plate fixing piece；
The flexibility scraper plate lower half portion is the arc shape, and inside lower end is provided with card slot, fills rubber on the card slot
Glue scraping article.
In a preferred embodiment: central angle corresponding to the arc shape of the flexibility scraper plate lower half portion is 90 °, partly
Diameter is identical as the radius of powdering roller.
In a preferred embodiment: the length of the flexibility scraper plate is more than the length of powdering roller, as the length of this example is
176mm。
In a preferred embodiment: the flexibility scraper plate is put so that powdering roller rotation direction and scraper plate direction phase
It is right.
In a preferred embodiment: the flexibility scraper plate uses wear-resisting, the flexible composite of heat resistanceheat resistant.
In a preferred embodiment: the flexible composite, as carbon black-styrene-butadiene rubber composite material passes through latex coprecipitation
Method preparation.
In a preferred embodiment: the flexibility is scraped to be made using die press technology for forming.
Compared to the prior art, technical solution of the present invention have it is following the utility model has the advantages that
A kind of increasing material manufacturing power spreading device of the flexible scraper plate of band provided by the invention, will be flexible by bolt and fixed plate
Scraper plate is fixed on supporting mechanism frame, due to scraper plate arc shape can with the fitting of powdering roller surfaces, so as to effective
Play the role of scraping powder, guarantee the clean of powdering roller surfaces, the quality on the surface of powdering each time is improved, to guarantee height
The part of quality.
A kind of increasing material manufacturing power spreading device of the above-mentioned flexible scraper plate of band, design is reasonable, structure is simple, easy to use,
Flexible scraper plate can be effectively prevented during powdering powder be adhered to powdering roll on surface, powder can be utilized efficiently,
It is easy to use, while quantity of sintered parts can be improved.
Detailed description of the invention
Fig. 1 is a kind of schematic diagram of the increasing material manufacturing power spreading device of the flexible scraper plate of band in the preferred embodiment of the present invention；.
Fig. 2 is the Structure explosion diagram of flexible scraper plate in the preferred embodiment of the present invention.
Wherein: 1. recovery tanks, 2. formation cylinders, 3. powdering rollers, 4. flexible scraper plates, 5. supporting mechanism framves, 6. workbench, 7.
Linear guide, 8. roller motors, 9. powder feeding cylinders, 10. synchronous belts, 11. stepper motors, 12. hex nuts, 13. flexible scraper plates are solid
Determine part, 14. adjustable bolts, 15 rubber scraping articles.
Specific embodiment
In order to keep technical solution of the present invention clearer, now the present invention is described further with attached drawing in conjunction with the embodiments.
A kind of increasing material manufacturing power spreading device embodiment of the flexible scraper plate of band of the present invention is done further referring to Figures 1 and 2
Explanation.
Fig. 1 is power spreading device general assembly drawing.The powder body material for needing to print is provided by powder feeding cylinder 9, this is the first step of printing.
Powdering roller horizontal transmission, that is, stepper motor 11 are used as power as power source, synchronous belt 10
Output source controls the running of powder supply mechanism, the revolving speed of stepper motor 11 be it is adjustable, be adapted to the powdering mistake of different powder
Journey.
Supporting mechanism frame 5 is fixed on synchronous belt 10, is moved back and forth under the driving of stepper motor 11 along rectilinear orbit 7
Dynamic, powdering roller 3 is mounted on supporting mechanism frame 5, by the powdering roller rotation transmission device being mounted on supporting mechanism frame 5,
Namely roller motor 8 drives powdering roller 3 to realize rotation.
Under the common driving of stepper motor 11 and roller motor 8, powdering roller 3 is realized rotation and is moved horizontally, and pushes
Powder flow forward completes powdering process on formation cylinder 2, and extra powder is realized to recycling in recovery tank 1.
Flexible scraper plate 4 is fixed on supporting mechanism frame 5, and effect is to remove to be attached on powdering roller during powdering
The powder on 3 surfaces is conducive to the flatness for improving powdering face.
Fig. 2 is the explosive view of flexible scraper plate.Flexible scraper plate 4 is fixed on flexible scraper plate fixing piece 13 by adjustable bolt 14
On, while the compactness between 14 adjustable flexible scraper plate 4 of adjustable bolt and 3 surface of powdering roller, it is possible to prevente effectively from powder
It is adhered on 3 surface of powdering roller, reduces the influence for causing powder waste and forming parts.Flexible 4 total length of scraper plate is
176mm is longer than the length of powdering roller, and the purpose designed in this way is the powder that can fully scrape off on roller surfaces, avoids
Its surface, which has, does not remove the case where powdering away.
In the present embodiment, the shape of cuboid is made in 4 top half of flexible scraper plate, is fixed by its upper surface hole hole
In 13 on flexible scraper plate fixing piece；Flexibility 4 lower half portion of scraper plate is the arc shape, and inside lower end is provided with card slot, institute
State filled rubber scraping article 15 on card slot.The length of the rubber scraping article 15 is identical as flexible scraper plate 4, this is to guarantee rubber
Scraping article 15 will not be moved left and right along 3 axis direction of powdering roller.Rubber scraping article 15 and 3 table of powdering roller on flexible scraper plate 4
Face contact can be further improved the removal rate of fine powder.
In addition, central angle corresponding to the arc shape of 4 lower half portion of the flexibility scraper plate is 90 °, radius and powder-laying roller
The radius of son 3 is identical, can guarantee that scraper plate is bonded with the surface that powdering is rolled, while can generate to avoid scraper plate and powdering rolling surface
Excessive interference, and may be implemented to scrape the effect of powder.The direction that flexible scraper plate 4 is put is opposite with 3 rotation direction of roller, can keep away
Remove the fine powder removed to be deposited on 13 on scraper plate fixing piece.
Flexible scraper plate 4 uses carbon black-styrene-butadiene rubber composite material flexible material simultaneously, and the use of the material can be improved
The wearability of scraper plate and scraper plate is made to possess good comprehensive mechanical property, and the composite material imparts the electric conductivity of scraper plate
Can, to reduce the influence of electrostatic during powdering.Wherein carbon black materials have the physical properties such as porous, density is small, Ke Yibao
It demonstrate,proves material internal and absorbs more subtle dust, so that the efficiency that removal is adhered to the powder on powdering rolling surface is improved, Jin Erbao
The flatness of every layer of powder is demonstrate,proved.Styrene-butadiene rubber has wear-resisting, heat-resisting, ageing-resistant and excellent close to natural rubber etc.
Benign energy, it is ensured that the wearability of scraper plate in use, while the use of flexible material can reduce powdering rolling surface
Surface damage during scraping powder.
Above-mentioned carbon black-butadiene-styrene rubber composite material is prepared by latex coprecipitation method, which is strong
Under stirring, the powder of carbon black is dispersed in water, stands for 24 hours, is made into suitable carbon black water slurry (concentration about 2%), then
Butadiene-styrene rubber cream is added, stirs 30min, carbon black/latex mixed liquor is made, a small amount of CaCl is added2Solution makes its flocculation, in 60 DEG C
Under conditions of freeze-day with constant temperature for 24 hours, obtain carbon black-butadiene-styrene rubber rubber master batch.
The molding of the flexible scraper plate 4 uses die press technology for forming, and basic process is by a certain amount of by pre- place
The molding compound of reason is put into the pressing mold of preheating, and applying higher pressure makes molding compound full of die cavity, under predetermined temperature conditions,
Molding compound gradually solidifies in die cavity, then takes out product from molding, then carries out necessary secondary process.
The above is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and those skilled in the art can
To readily appreciate that variation disclosed in this invention or technical scope.Alternative solution is intended to cover within the scope of the invention.Cause
This, protection scope of the present invention should be determined by the scope of the claims.
Claims (8)
1. a kind of increasing material manufacturing power spreading device of the flexible scraper plate of band, characterized by comprising: forming worktable, powdering roller water
Flat mobile gear, powdering roller rotation transmission device are mounted on supporting mechanism frame flexible screeding device, are mounted on support
Powdering roller in mechanism rack；
The supporting mechanism frame is fixed on synchronous belt, and along straight line under the driving of powdering roller horizontal transmission
Track moves back and forth, and the powdering roller rotation transmission device is mounted on supporting mechanism frame and drives powdering roller rotation；
Arc shape is made in the flexibility scraper plate, is allowed to fit with powdering roller；
The flexibility scraper plate is fixed on flexible scraper plate fixing piece by adjustable bolt, adjusts flexible scraper plate edge by adjustable bolt
The displacement in adjustable bolt axial direction, to adjust the compactness between flexible scraper plate and powdering roller surfaces.
2. a kind of increasing material manufacturing power spreading device of the flexible scraper plate of band according to claim 1, it is characterised in that: described
The shape of cuboid is made in flexible scraper plate top half, is fixed on flexible scraper plate fixing piece by its upper surface hole hole；
The flexibility scraper plate lower half portion is the arc shape, and inside lower end is provided with card slot, and filled rubber is scraped on the card slot
Item.
3. a kind of increasing material manufacturing power spreading device of the flexible scraper plate of band according to claim 2, it is characterised in that: described soft
Property scraper plate lower half portion arc shape corresponding to central angle be 60 ° to 90 ° between, the radius phase of radius and powdering roller
Together.
4. a kind of increasing material manufacturing power spreading device of the flexible scraper plate of band according to claim 1, it is characterised in that: described
The length of flexible scraper plate is more than the length of powdering roller, if the length of this example is 176mm.
5. a kind of increasing material manufacturing power spreading device of the flexible scraper plate of band according to claim 1, it is characterised in that: described soft
Property scraper plate is put so that powdering roller rotation direction is opposite with scraper plate direction.
6. a kind of increasing material manufacturing power spreading device of the flexible scraper plate of band according to claim 1, it is characterised in that: described soft
Property scraper plate use wear-resisting, the flexible composite of heat resistanceheat resistant.
7. a kind of increasing material manufacturing power spreading device of the flexible scraper plate of band according to claim 6, it is characterised in that: described soft
Property composite material, as carbon black-styrene-butadiene rubber composite material is prepared by latex coprecipitation method.
8. a kind of increasing material manufacturing power spreading device of the flexible scraper plate of band according to claim 1, it is characterised in that: described
Flexibility is scraped to be made using die press technology for forming.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910354760.5A CN110065233A (en) | 2019-04-29 | 2019-04-29 | A kind of increasing material manufacturing power spreading device of the flexible scraper plate of band |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910354760.5A CN110065233A (en) | 2019-04-29 | 2019-04-29 | A kind of increasing material manufacturing power spreading device of the flexible scraper plate of band |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110065233A true CN110065233A (en) | 2019-07-30 |
Family
ID=67369373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910354760.5A Pending CN110065233A (en) | 2019-04-29 | 2019-04-29 | A kind of increasing material manufacturing power spreading device of the flexible scraper plate of band |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110065233A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113547737A (en) * | 2021-07-21 | 2021-10-26 | 东北大学 | Scraper shape design for improving powder bed performance and powder laying efficiency in additive manufacturing |
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| JP2009274783A (en) * | 2008-05-13 | 2009-11-26 | Chugoku Electric Power Co Inc:The | Flight conveyor |
| CN102602146A (en) * | 2012-03-02 | 2012-07-25 | 华中科技大学 | Piezoelectric-type three-dimensional printing forming system and forming method thereof |
| CN204586116U (en) * | 2015-04-01 | 2015-08-26 | 王贤淮 | A kind of printing-ink unit and curved surface printing machine with cleaning function |
| CN107718713A (en) * | 2017-09-27 | 2018-02-23 | 张昕 | A kind of paper formation device |
| CN109290575A (en) * | 2018-10-26 | 2019-02-01 | 华侨大学 | A kind of increasing material manufacturing power spreading device with flexible baffle |
| CN209869416U (en) * | 2019-04-29 | 2019-12-31 | 华侨大学 | Additive manufacturing powder laying device with flexible scraper |
-
2019
- 2019-04-29 CN CN201910354760.5A patent/CN110065233A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009274783A (en) * | 2008-05-13 | 2009-11-26 | Chugoku Electric Power Co Inc:The | Flight conveyor |
| CN101348583A (en) * | 2008-09-05 | 2009-01-21 | 北京化工大学 | Rectorite/butadiene styrene rubber nano composite material for manufacturing tyre tube |
| CN102602146A (en) * | 2012-03-02 | 2012-07-25 | 华中科技大学 | Piezoelectric-type three-dimensional printing forming system and forming method thereof |
| CN204586116U (en) * | 2015-04-01 | 2015-08-26 | 王贤淮 | A kind of printing-ink unit and curved surface printing machine with cleaning function |
| CN107718713A (en) * | 2017-09-27 | 2018-02-23 | 张昕 | A kind of paper formation device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113547737A (en) * | 2021-07-21 | 2021-10-26 | 东北大学 | Scraper shape design for improving powder bed performance and powder laying efficiency in additive manufacturing |
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Application publication date: 20190730 |