CN105751491A - Novel powder cylinder-free powder feeding method for compact powder-laying type 3D printer - Google Patents
Novel powder cylinder-free powder feeding method for compact powder-laying type 3D printer Download PDFInfo
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- CN105751491A CN105751491A CN201410774425.8A CN201410774425A CN105751491A CN 105751491 A CN105751491 A CN 105751491A CN 201410774425 A CN201410774425 A CN 201410774425A CN 105751491 A CN105751491 A CN 105751491A
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Abstract
The invention provides a powder feeding method for a powder-laying type 3D printer. The method can feed powder to a working cylinder of the 3D printer layer by layer. Feed supply amounts needed for printing of each layer are calculated according to a CAD model of a product; when the 3D printer is used for printing of each layer, powder is fed to appropriate positions according to the feed supply amounts and then powder is uniformly spread on the upper surface of the working cylinder according to a certain compaction degree; and residual powder of each layer can be collected and treated and is then returned to the 3D printer layer for recycling. With the method provided by the invention, the size and weight of the 3D printer can be reduced; powder feeding is accurate; the reservation amount of powder is lowered; and the utilization rate of the powder is improved.
Description
Technical field
The present invention relates to a kind of part forming manufacture method, specifically, relate to the one of paving powder formula 3D printer for powder method.
Background technology
At present, increasing material manufacture and 3D prints technique and just receiving the fervent concern of Chinese scholars, enterprise, the common people and government, increasing 3D Method of printing and equipment thereof are developed.The Forming Theory that various 3D print technique is different, and material used relates to various metals and nonmetallic materials, and the initial condition of moulding material also has multiple.Moulding material has solid-state, also has liquid.Solid-state have powdery, thread and laminar, the mainly photosensitive resin of liquid.For pulverulent material, both metal it had been probably, being also likely to be nonmetal (such as Gypsum Fibrosum, pottery etc.), the 3D being suitable for prints technique mainly has laser melting coating, selective laser melting, selective laser sintering and ink jet type 3D to print (3D namely passing by define prints).Have spraying type and paving powder formula two kinds for powder mode, both are respectively arranged with pluses and minuses.Spraying type 3D prints and does not both want powder cylinder, does not also want working cylinder, say, that work head prints to which position of workpiece, and powder just delivers to which position of workpiece；And spread powder formula 3D and print and need to lay in a certain amount of powder, and spread and deliver in working cylinder, no matter part cross-section is how, and whole working cylinder cross section all must have powder paving to send.Surface seems that the spraying type 3D powder using efficiency printed is high and it is low to spread the powder formula 3D powder using efficiency printed, but, actually, after product shaping, inside working cylinder, the remaining powder overwhelming majority can reclaim, and easier than the Powder Recovery of spraying type, thus powder practical efficiency will not be lower than spraying type.So it is easily controlled it addition, the dimensional accuracy that spraying type 3D prints does not spread powder formula 3D printing, thus, paving powder formula 3D prints more popular to people, especially for the manufacture of middle finding.So, it is better that paving powder formula 3D prints growth momentum.
At present, paving powder formula 3D printer major part is with 1 to 2 powder cylinder both at home and abroad, is successively spread powder to working cylinder by spreading powder cylinder, for instance the SLS3D printer of 3DSystem company of the U.S. and domestic Bin Hu mechanical & electrical corporation.This 3D printer is bulky, very heavy, not only occupies bigger place, handling transport inconvenience, operates less nimble；And the 3D that the more powder that needs to prestore just can complete part in powder cylinder prints, and not only affects efficiency and the quality of Powder Recovery, too increase 3D and print the manufacturing cost of part.
Summary of the invention
In order to solve the problems referred to above, the present invention does not adopt powder cylinder to the working cylinder of paving powder formula 3D printer for delivering powder, it is proposed to a kind of new for powder mode, to reduce equipment volume and weight, and makes powder feed more accurate, reduces 3D yet and print cost.
This invention address that the scheme of problem is: calculate the confession powder amount printed needed for each layer according to the cad model of product, 3D printer is fed to correct position by the powder feeder unit of a small volume powder according to this demand when printing each layer, then powder with certain degree of packing at working cylinder upper surface drawout equably, every layer of remaining powder returns in 3D printer after can collecting process and reuses.
It is calculate according to the thickness of layer each after the cad model hierarchy slicing of product and working cylinder cross-sectional area and when shaping each layer, fill in working cylinder amount of powder required for space, add and corresponding with powder accumulation consolidation situation spread powder surplus and draw for powder amount when printing each layer of product；The technical parameter of the powder feeder unit according to 3D printer, calculates the rotation angle value of the motor shaft of powder feeder unit when printing this layer, as generating the parameter for powder control instruction according to the confession powder gauge of each layer；In product 3D print procedure, every layer of residual powder is all scraped in feeding powder receiving flask, after screened filtration, reenters in 3D printer and is continuing with.
This patent is supplied powder by the powder feeder unit of a small volume to the working cylinder of 3D printer, it is possible to reduce equipment volume and weight；Calculating according to this layer thickness for powder amount when 3D printer prints every layer, powder feed is more accurate；Residual powder when printing every layer can be collected in time, it is possible to reduce powder storage level, improves powder using efficiency, reduces 3D and prints cost.
Accompanying drawing explanation
Accompanying drawing is without powder cylinder powder-supply system structural representation.
In figure, 1 for for powder body, and 2 is powder hopper, and 3 is paving powder body, and 4 is workbench, and 5 is working cylinder, and 6 is powder receiving flask.
Detailed description of the invention
First the cad model of product is carried out hierarchy slicing by required thickness, call cross-sectional area data and the dusty material parameter of working cylinder 5, calculating the amount of powder printed required for each layer, and arrange paving powder surplus, both sum prints confession powder amount during each layer as 3D printer；According to the technical parameter for powder body 1, calculate the rotation angle value for powder motor shaft, and generate for powder control instruction；Under the control of the computer, starting for powder body 1, and press command request, drive motor axle rotates the angle of regulation, and powder is fed to correct position；Then, paving powder body 3 obtains control instruction, does linear reciprocating motion on workbench 4 surface, carries out paving powder action, powder with certain degree of packing drawout equably on working cylinder 5；When pawnshop powder body 3 moves to Derivative limit on the left or on the right position, excessive powder is scraped respectively corresponding two powder receiving flasks 6；In product 3D print procedure, printer spreads powder surplus according to capacity and each layer of powder receiving flask 6, prompting operator closes the bottleneck valve of powder receiving flask 6 and the powder falling valve of workbench 4 at the appropriate time, the powder collected is poured in screening plant, then powder receiving flask is received again the powder falling mouth of workbench 4, and open the bottleneck valve of powder receiving flask 6 and the powder falling valve of workbench 4, in order to continue to collect powder；After powder sieving filters, close powder hopper 2 and for the coupling cock between powder body 1, open the upper cover of powder hopper 2, powder is poured in powder hopper 2, being then shut off the upper cover of powder hopper 2, open powder hopper 2 and for the coupling cock between powder body 1, the powder of collection can fall into be reused in powder body 1；If needing to add powder in product 3D print procedure in powder hopper 2, powder adds and operates same back.
Claims (4)
1. the confession powder method of a 3D printer, it is characterized in that: calculate the confession powder amount printed needed for each layer according to the cad model of product, 3D printer is fed to correct position according to this demand powder when printing each layer, then powder with certain degree of packing at working cylinder upper surface drawout equably, every layer of remaining powder returns in 3D printer after can collecting process and reuses.
2. according to claim 1 for powder method, its feature also has: when printing each layer of product for powder amount be, calculates according to the thickness of layer each after the cad model hierarchy slicing of product and working cylinder cross-sectional area and fills in working cylinder amount of powder required for space when shaping each layer, adds and corresponding with powder accumulation consolidation situation spread powder surplus and draw.
3. according to claim 1 for powder method, its feature also has: the technical parameter according to 3D printer powder feeder unit, the rotation angle value of the motor shaft of powder feeder unit when printing this layer is calculated, as generating the parameter for powder control instruction according to the confession powder gauge of each layer.
4. according to claim 1 for powder method, its feature also has: in product 3D print procedure, and every layer of residual powder is all scraped in feeding powder receiving flask, after screened filtration, reenters in 3D printer and is continuing with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410774425.8A CN105751491A (en) | 2014-12-16 | 2014-12-16 | Novel powder cylinder-free powder feeding method for compact powder-laying type 3D printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410774425.8A CN105751491A (en) | 2014-12-16 | 2014-12-16 | Novel powder cylinder-free powder feeding method for compact powder-laying type 3D printer |
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| CN105751491A true CN105751491A (en) | 2016-07-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410774425.8A Pending CN105751491A (en) | 2014-12-16 | 2014-12-16 | Novel powder cylinder-free powder feeding method for compact powder-laying type 3D printer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019024077A1 (en) * | 2017-08-04 | 2019-02-07 | 吴江中瑞机电科技有限公司 | Powder sintering 3d printing system and powder supply method thereof |
| CN110370650A (en) * | 2019-08-05 | 2019-10-25 | 杭州先临易加三维科技有限公司 | Amount of powder determination and 3D printing method, apparatus, electronic equipment and storage medium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101553355A (en) * | 2006-11-10 | 2009-10-07 | Eos有限公司电镀光纤*** | Apparatus and method for the production of a three-dimensional object by means of a coating device for powdered structural material |
| CN101829782A (en) * | 2010-05-14 | 2010-09-15 | 清华大学 | Non-contact type power automatic feeding and paving device |
| CN103909655A (en) * | 2013-01-06 | 2014-07-09 | 北京国视国电科技有限公司 | 3D rapid forming three-dimensional printing apparatus and process |
| CN104010750A (en) * | 2011-12-20 | 2014-08-27 | 米其林集团总公司 | Machine and process for powder-based additive manufacturing |
-
2014
- 2014-12-16 CN CN201410774425.8A patent/CN105751491A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101553355A (en) * | 2006-11-10 | 2009-10-07 | Eos有限公司电镀光纤*** | Apparatus and method for the production of a three-dimensional object by means of a coating device for powdered structural material |
| CN101829782A (en) * | 2010-05-14 | 2010-09-15 | 清华大学 | Non-contact type power automatic feeding and paving device |
| CN104010750A (en) * | 2011-12-20 | 2014-08-27 | 米其林集团总公司 | Machine and process for powder-based additive manufacturing |
| CN103909655A (en) * | 2013-01-06 | 2014-07-09 | 北京国视国电科技有限公司 | 3D rapid forming three-dimensional printing apparatus and process |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019024077A1 (en) * | 2017-08-04 | 2019-02-07 | 吴江中瑞机电科技有限公司 | Powder sintering 3d printing system and powder supply method thereof |
| CN110370650A (en) * | 2019-08-05 | 2019-10-25 | 杭州先临易加三维科技有限公司 | Amount of powder determination and 3D printing method, apparatus, electronic equipment and storage medium |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160713 |