CN1739946A - Three-dimensional printing formation unit and method - Google Patents
Three-dimensional printing formation unit and method Download PDFInfo
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- CN1739946A CN1739946A CNA2005100297269A CN200510029726A CN1739946A CN 1739946 A CN1739946 A CN 1739946A CN A2005100297269 A CNA2005100297269 A CN A2005100297269A CN 200510029726 A CN200510029726 A CN 200510029726A CN 1739946 A CN1739946 A CN 1739946A
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Abstract
The three-dimensional printing formation unit includes one X-Y work bench and one elevating platform. The X-Y work bench has lower liquid tank with bottom liquid support medium, and upper nozzle with downward spout, over liquid level sensor. The lower liquid tank has liquid support material and bottom flow guide hole, the elevating platform is located inside the liquid support material, and the flow guide hole is connected via duct with pump. The three-dimensional printing formation method includes spraying the forming material via the nozzle, forming on the liquid support material surface and based on the cross section data, curing the forming material on the surface of the support material to form one layer of the part, lowering the work bench for one layer of thickness for the painting of the next layer, and adhering the adjacent layer to form three-dimensional body. The present invention has the advantages of no need of special support structure, simple part making process, high material utilization, etc.
Description
Technical field
This patent relates to a kind of three-dimensional fast shaping equipment and method, especially a kind of three-dimensional printing formation unit and using method thereof.
Background technology
The rapid forming equipment type is a lot of at present, comprises stereolithography (Stereolithography-SL), fused deposition moulding (Fused Deposition Modeling-FDM), laminated solid body processing (Laminated Object Manufacturing-LOM), selective laser sintering (Selective Laser Sintering-SLS) and 3 D-printing (3Dimensional Printing-3DP) etc.The patented technology relevant with the 3 D-printing moulding mainly contains February nineteen ninety-five United States Patent (USP) 5387380 (applicant Cima) by in dusty material surface selectivity spraying adhesive, thereby the dusty material in the part section is bonded together, molding bonded so successively, the dusty material that will not bond after bonding is finished takes out, and obtains forming part.The Method of printing of in March, 1999 United States Patent (USP) 5878664 (applicant Hartka) is to utilize type drum to process on liftable plane, add and on cylinder, produce the figure of printing man-hour, one deck is printed and is finished, and produces next layer pattern, successively printing shaping entity on the cylinder.In November, 1999 United States Patent (USP) 5984444 (applicant Hawley), this patent adopts the moulding of static 3 D-printing, wax, plastics etc. is molten into drop, quickens drop by magnetic field and planar pile up and the moulding that successively adds up, and adopt low melting material as the backing material support part.In May, 1999, United States Patent (USP) 5902441 (applicant Bredt and JamesF) proposed a kind of 3 D-printing method, and this method is by generating the cross section of three-dimensional body, and the cross section with processing successively is bonded to three-dimensional body then.In September, 2002 Bredt another United States Patent (USP) 6416850, adopt binding agent and filler mixed the multi component particle that the constitutes 3 D-printing method as moulding material.
More than several 3 D-printing forming methods need the specialized designs supporting construction, make complicatedly for part with complex internal structure, stock utilization is low.
Summary of the invention
The present invention will provide a kind of novel three-dimensional printing formation unit and method, and it has simple in structure, and 3 d part is easy to make, stock utilization height, characteristics such as the part post processing of machine-shaping is simple.
For realizing purpose of the present invention, the technical scheme that is adopted is as follows:
A kind of three-dimensional printing formation unit comprises the X-Y workbench, hoistable platform.Be provided with reservoir below the X-Y workbench, the downward shower nozzle of spout is housed above the X-Y workbench, X-Y workbench top is provided with liquid level sensor, store backing material in the reservoir, hoistable platform is positioned at backing material, and the reservoir base is provided with pod apertures, and pod apertures is connected with pump by conduit.
The backing material that stores in the reservoir is a liquid condition.Shower nozzle is connected with pump discharge by conduit, and pump inlet connects the raw material tank that stores moulding material.
A kind of method of using three-dimensional printing formation unit, the forming process of its part is:
1. the Computer Processing three-dimensional CAD model is divided into a series of cross section figures with thickness with the threedimensional model order.
2. promote hoistable platform to a height and position, survey liquid level by liquid level sensor, according to the liquid level of surveying, the quantity by the backing material in the pump change reservoir is in the same horizontal plane with the workbench surface up to the backing material surface.
3. at horizontal in-plane moving, moulding material sprays by shower nozzle computer simultaneously, is sprayed on the hoistable platform surface, forms the sprayed coating identical with the cross section figure, sprays the X-Y workbench that finishes and returns parking place according to cross section figure control X-Y workbench.
4. Pen Tu moulding material A after chemical reaction, radiation, bonding, heating, cooling means planar solidify to form one deck and solidifies part.
5. self-powered platform drops to a height and position.
6. liquid level sensor is surveyed liquid level, according to the liquid level of surveying, by the quantity of the backing material in the pump change reservoir, is in the same horizontal plane with one deck part upper surface that solidifies up to liquid backing material surface.
7. computer control X-Y workbench is made horizontal in-plane moving, moulding material A sprays by shower nozzle simultaneously, in molded piece surface and liquid backing material B surface spray mo(u)lding materials A, form and the corresponding identical sprayed coating of cross section figure, spray the X-Y workbench that finishes and return parking place.
8. repeat forming process 4-7, finish until part processing.
9. promote lifting platform to certain altitude, take out forming part.
Moulding material of the present invention sprays by shower nozzle, on liquid backing material surface according to the cross-section data spray mo(u)lding, the spray mo(u)lding material is at the backing material surface cure, one deck part curing molding finishes, the workbench layer thickness that descends, following one deck sprays, and adjacent layer is bonded together mutually, thereby forms 3D solid.With existing quick molding method, particularly existing 3 D-printing quick molding method is compared, and the present invention has the following advantages:
1. the present invention adopts the liquid backing material, does not need other specialized designs supporting constructions, and part is made simple, and especially for the part with complex internal structure, advantage is more obvious;
2. stock utilization height;
3. the part post processing of machine-shaping is simple.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the three-dimensional printing formation unit structural representation of embodiments of the invention 1;
Fig. 3 is the three-dimensional printing formation unit structural representation of embodiments of the invention 2.
The specific embodiment
The invention will be further described below in conjunction with accompanying drawing and embodiment.
As Fig. 1, shown in 2, three-dimensional printing formation unit mainly comprises X-Y workbench 1, shower nozzle 2, liquid level sensor 3, reservoir 4, pod apertures 5, conduit 6, pump 7, hoistable platform 9.
Reservoir 4 is installed below the X-Y workbench 1, shower nozzle 2 is installed above the X-Y workbench 1, the spout of shower nozzle 2 is positioned at below the X-Y workbench 1, direction down, X-Y workbench 1 top is provided with liquid level sensor 3, stores backing material 8 in the reservoir 4, and hoistable platform 9 is positioned at backing material 8, reservoir 4 bases are provided with pod apertures 5, and pod apertures 5 is connected with pump 7 by conduit 6.
The backing material 8 that stores in the reservoir 4 is a liquid condition.The import of shower nozzle 2 is connected with pump 13 outlets by conduit 14, and pump 13 imports connect raw material tank 11, store moulding material in the raw material tank 11.
Be stored in the liquid backing material 8 in the reservoir 4, can change its quantity in reservoir 4 by pump 7, conduit 6, pod apertures 5.
The forming process of present device is as follows:
1. the Computer Processing three-dimensional CAD model is divided into a series of certain thickness cross section figures that have with the threedimensional model order.
2. promote hoistable platform 9 to certain altitude, and utilize liquid level sensor to survey 3 liquid levels, according to the liquid level of surveying, the quantity by the backing material 8 in pump 7, conduit 6, the pod apertures 5 change reservoirs 4 is in the same horizontal plane with the workbench surface up to backing material 8 surfaces.
3. at horizontal in-plane moving, moulding material is sprayed on hoistable platform 9 surfaces by shower nozzle 2 ejections to computer simultaneously, forms the sprayed coating identical with the cross section figure, sprays the X-Y workbench that finishes and returns parking place according to cross section figure control X-Y workbench 1.
4. methods such as Pen Tu moulding material A after chemical reaction, radiation, bonding, heating, cooling planar solidify to form one deck and solidify part.
5. self-powered platform 9 decline certain altitudes.
6. liquid level sensor is surveyed 3 liquid levels, according to the liquid level of surveying, quantity by the backing material 8 in pump 7, conduit 6, the pod apertures 5 change reservoirs 4 is in the same horizontal plane with one deck part upper surfaces that solidify up to liquid backing material 8 surfaces.
7.X-Y workbench 1 moves in the computer control lower horizontal plane, moulding material is by shower nozzle 2 ejections simultaneously, in molded piece surface and liquid backing material 8 surperficial spray mo(u)lding materials A, form and the corresponding identical sprayed coating of cross section figure, spray the X-Y workbench that finishes and return parking place.
8. repeat forming process 4-7, until part 10 completion of processing.
9. promote lifting platform 9 to certain altitude, take out forming part 10.
Further set forth the present invention below by two embodiment.
Embodiment 1
Present embodiment adopts equipment of the present invention as shown in Figure 2, selects liquid photosensitive resin 12 as moulding material, and liquid-state epoxy resin is as backing material 8.Photosensitive resin storage 12 is stored in the raw material tank 11, by conduit 14 and pump 13 photosensitive resin 12 is transported to shower nozzle 2, and the photosensitive resin 12 of shower nozzle 2 ejections is through the irradiation of uviol lamp 15, and liquid light maleate resin 12 solidifies.
Process is as follows:
1. the three-dimensional CAD model data are divided into a series of certain thickness cross section figures that have through Computer Processing.
2. hoistable platform 9 is promoted to certain altitude, and utilize liquid level sensor to survey 3 liquid levels, according to the liquid level of surveying, quantity by the backing material epoxy resin 8 in pump 7, conduit 6, the pod apertures 5 change reservoirs 4 is in the same horizontal plane with the workbench surface up to backing material 8 surfaces.
3. according to the sectional view graphic data, computer control X-Y workbench 1 is at horizontal in-plane moving, and photosensitive resin 12 is sprayed on hoistable platform 9 surfaces by shower nozzle 2 ejections simultaneously, form the sprayed coating identical, spray the X-Y workbench that finishes and return parking place with the cross section figure.
4. the photosensitive resin of uviol lamp 15 irradiation sprayings planar solidify to form one deck and solidifies part.
5. self-powered platform 9 decline certain altitudes.
6. liquid level sensor is surveyed 3 liquid levels, according to the liquid level of surveying, changes the quantity of the epoxy resin in the reservoirs 4 by pump 7, conduit 6, pod apertures 5, is in the same horizontal plane up to one deck part upper surface of epoxy resin surface and curing.
7.X-Y workbench 1 moves in the computer control lower horizontal plane once more, photosensitive resin 12 is by shower nozzle 2 ejections simultaneously, at molded piece surface and epoxy resin surface spraying photosensitive resin, form and the corresponding identical sprayed coating of cross section figure, spray the X-Y workbench that finishes and return parking place.
8. repeat forming process 4-7, until part 10 completion of processing.
9. promote lifting platform 9 to certain altitude, take out forming part 10.
Present embodiment adopts equipment of the present invention as shown in Figure 3, selects wax 18 as moulding material, and liquid-state epoxy resin is as backing material 8.Wax 18 is stored in the raw material tank 17, is heated to molten condition through heating plate 16, and the wax of molten condition is transported to shower nozzle by conduit 20 and pump 19 with photosensitive resin, and the wax of the molten condition of shower nozzle ejection is through the cooled and solidified moulding.
Process is as follows:
1. the three-dimensional CAD model data are divided into a series of certain thickness cross section figures that have through Computer Processing.
2. heating plate 16 heating raw grooves 17 make solid-state wax fusing, keep stablizing 70-100 ℃.
3. hoistable platform 9 is promoted to certain altitude, and utilize liquid level sensor to survey 3 liquid levels, according to the liquid level of surveying, quantity by the backing material epoxy resin in pump 7, conduit 6, the pod apertures 5 change reservoirs 4 is in the same horizontal plane with the workbench surface up to the backing material surface.
4. according to the sectional view graphic data, computer control X-Y workbench 1 is at horizontal in-plane moving, and the wax of molten condition is sprayed on hoistable platform 9 surfaces by shower nozzle 2 ejections simultaneously, form the sprayed coating identical, spray the X-Y workbench that finishes and return parking place with the cross section figure.
5. Pen Tu wax is being lower than under 60 ℃ the temperature static 10 seconds-3 minutes, planar solidifies to form one deck and solidify part.
6. self-powered platform 9 decline certain altitudes.
7. liquid level sensor is surveyed 3 liquid levels, according to the liquid level of surveying, changes the quantity of the epoxy resin in the reservoirs 4 by pump 7, conduit 6, pod apertures 5, is in the same horizontal plane up to one deck part upper surface of epoxy resin surface and curing.
8.X-Y workbench 1 moves in the computer control lower horizontal plane once more, the wax of molten condition is by shower nozzle 2 ejections simultaneously, wax in molded piece surface and epoxy resin surface spraying molten condition, form and the corresponding identical sprayed coating of cross section figure, spray the X-Y workbench that finishes and return parking place.
9. repeat forming process 4-7, until part 10 completion of processing.
10. promote lifting platform 9 to certain altitude, take out forming part 10.
The present invention is not limited to above-mentioned preferential example, and those skilled in the art can make various distortion on this basis, and for example moulding material and backing material are selected two or more mixtures of material etc.
Claims (4)
1. three-dimensional printing formation unit, comprise X-Y workbench (1), hoistable platform (9), it is characterized in that, be provided with reservoir (4) below the described X-Y workbench (1), the downward shower nozzle of spout (2) is housed above the X-Y workbench (1), X-Y workbench (1) top is provided with liquid level sensor (3), store backing material (8) in the reservoir (4), hoistable platform (9) is positioned at backing material (8), reservoir (4) base is provided with pod apertures (5), and pod apertures (5) is connected with pump (7) by conduit (6).
2. three-dimensional printing formation unit according to claim 1 is characterized in that, the backing material (8) that stores in the described reservoir (4) is a liquid condition.
3. three-dimensional printing formation unit according to claim 1 is characterized in that, described shower nozzle (2) is connected with pump (13) outlet by conduit (14), and pump (13) import connects the raw material tank (11) that stores moulding material.
4. a method of using three-dimensional printing formation unit is characterized in that, the forming process of 3 d part is:
(1) Computer Processing three-dimensional CAD model is divided into a series of cross section figures with thickness with the threedimensional model order;
(2) promote hoistable platform (9) to a height and position, survey liquid level by liquid level sensor (3), according to the liquid level of surveying,, be in the same horizontal plane with the workbench surface up to backing material (8) surface by the quantity of the backing material (8) in pump (7) the change reservoir (4);
(3) computer is controlled X-Y workbench (1) at horizontal in-plane moving according to the cross section figure, moulding material is by shower nozzle (2) ejection simultaneously, be sprayed on hoistable platform (9) surface, form the sprayed coating identical, spray the X-Y workbench that finishes and return parking place with the cross section figure;
(4) Pen Tu moulding material after chemical reaction, radiation, bonding, heating, cooling means planar solidify to form one deck and solidifies part;
(5) self-powered platform (9) drops to a height and position;
(6) liquid level sensor (3) is surveyed liquid level, according to the liquid level of surveying, by the quantity of the backing material (8) in pump (7) the change reservoir (4), be in the same horizontal plane with one deck part upper surface that solidifies up to liquid backing material (8) surface;
(7) computer control X-Y workbench (1) is made horizontal in-plane moving, moulding material is by shower nozzle (2) ejection simultaneously, at molded piece surface and the surperficial spray mo(u)lding material of liquid backing material (8), form and the corresponding identical sprayed coating of cross section figure, spray the X-Y workbench that finishes and return parking place;
(8) repeat forming process 4-7, until part (10) completion of processing;
(9) promote lifting platform (9) to certain altitude, take out forming part (10).
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| CNB2005100297269A CN100395098C (en) | 2005-09-16 | 2005-09-16 | Three-dimensional printing formation unit and method |
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| CNB2005100297269A CN100395098C (en) | 2005-09-16 | 2005-09-16 | Three-dimensional printing formation unit and method |
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