CN102049162A - Filtering system - Google Patents
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- CN102049162A CN102049162A CN2009102083582A CN200910208358A CN102049162A CN 102049162 A CN102049162 A CN 102049162A CN 2009102083582 A CN2009102083582 A CN 2009102083582A CN 200910208358 A CN200910208358 A CN 200910208358A CN 102049162 A CN102049162 A CN 102049162A
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Abstract
The invention relates to a filtering system which is applied to the working space of a stereoscopic forming device, wherein the working space is communicated with the filtering system through a pipe fitting. The filtering system comprises a shell, a dust filtering device, a dust suction inlet and an air suction device, wherein the shell at least comprises a first space and a second space; the first space is separated from the second space by the dust filtering device; the dust suction inlet is communicated with the second space for connecting and fixing the pipe fitting; and the air suction device is communicated with the first space for generating negative pressure in the first space, so as to suck flying dust from a working space into the second space through the pipe fitting and the dust suction inlet, and collect the dust in the second space by the dust filtering device.
Description
Technical field
The invention relates to a kind of filtration system, refer to the filtration system on a kind of working space that is applied to stereoscopic moulding device especially.
Background technology
Rapid shaping technique (Rapid Prototyping, abbreviation RP technology) main notion with storehouse moulding is layer by layer developed forms, it is that powder is layed on the carrier, utilize inkjet technology spraying high viscosity adhesive liquid again, powder is closed each other with fixed attention, with without any need for cutter, automatically, fast the design of any complicated shape is converted to fast the physical model of 3D under the situation of mould and jig.
Yet; the existing stereoscopic moulding device of RP technology that adopts is when shop powder, printing and taking-up moulding product; the dust regular meeting of being kicked up causes the pollution of working environment; and become easily infected by in the working space of stereoscopic moulding device; normal in order to keep operation; prior art needs after carrying out a certain discontinuous running, carries out dust suction and cleaning maintenance work.Yet, in cleaning course, often because of the careless moulding product of having damaged, or the member of destruction stereoscopic moulding device; In addition, high-frequency cleaning also can cause manpower and waste of time, has relatively improved the integral manufacturing cost, and if reduce cleaning frequency, again dust pollution is arranged and is difficult for keeping the anxiety of working space cleaning.
In view of this, how to develop a kind of stereoscopic moulding device and filtration system thereof, to improve above-mentioned prior art disappearance, real for pressing for the problem of solution at present.
Summary of the invention
Main purpose of the present invention is to provide a filtration system that is applied to the working space of stereoscopic moulding device, must lean on post-job arrangement to keep all inconvenience of working space cleaning continually to solve existing desk-top stereoscopic moulding device.The filtration system of stereoscopic moulding device of the present invention mainly is to produce negative pressure by air intake device, to utilize negative pressure control of dust technology the construction powder that flies upward in the working space is directly sucked filtration system, keeps the cleaning of working space by this.The construction powder that sucks filtration system then filters by the dust filter, cooperate retracting device that the construction powder is concentrated recovery again, cause the air intake device damage to avoid the construction powder directly to enter air intake device, be convenient to the reclaiming utilization of construction powder simultaneously.Therefore by filtration system of the present invention, can guarantee stereoscopic moulding device normal running and can not be subjected to the interference that the construction powder flies upward under good environment, and also can reclaim the construction powder effectively, thus avoid existing clean continually to moulding product or stereoscopic moulding device the negative effect that may cause.
For reaching above-mentioned purpose, of the present invention one implements the sample attitude for a kind of filtration system is provided than broad sense, and it is applied on the working space of stereoscopic moulding device, and working space system is communicated with filtration system by pipe fitting, and filtration system comprises: a housing, and it comprises first space and second space at least; One dust filter, it is to separate first, second space; One dust suction inlet, it is to be communicated with second space, in order to be connected and fixed pipe fitting; And an air intake device, it is communicated with first space, in order to do making first space produce negative pressure, sucks second space with the construction powder that working space is flown upward by pipe fitting and dust suction inlet, and by the dust filter construction powder is concentrated on second space.
Description of drawings
Figure 1A is the perspective view of the stereoscopic moulding device of a preferred embodiment of the present invention.
Figure 1B is that the part of the stereoscopic moulding device shown in Figure 1A is disassembled schematic diagram.
Fig. 2 A is the schematic appearance of the filtration system of the stereoscopic moulding device shown in Figure 1A.
Fig. 2 B is a preferred embodiment figure of the internal structure of the filtration system shown in Fig. 2 A.
Fig. 2 C is the schematic diagram at another visual angle of Fig. 2 B.
Fig. 2 D is the vertical view of Fig. 2 B.
Fig. 2 E is the A-A ' profile of Fig. 2 B.
Fig. 2 F is the exploded perspective view of gridiron plate and dust filter between the filtration system shown in Fig. 2 B.
Fig. 3 is the schematic diagram that the dust filter of another preferred embodiment of the present invention is arranged at the layout deckle board.
The specific embodiment
Some exemplary embodiments that embody feature of the present invention and advantage will be described in detail in the explanation of back segment.Be understood that the present invention can have various variations on different aspects, its neither departing from the scope of the present invention, and explanation wherein and icon be when the usefulness that explain in itself, but not in order to restriction the present invention.
See also Figure 1A and Figure 1B, it is that the perspective view and the part that are respectively the stereoscopic moulding device of a preferred embodiment of the present invention are disassembled schematic diagram.Shown in Figure 1A and Figure 1B, stereoscopic moulding device 1 of the present invention, for example: the desktop stereoscopic moulding device, at least comprise cover cap 11, construction pedestal 12, filtration system 13 and pipe fitting 14, wherein cover cap 11 defines a working space 10 that is isolated from the outside jointly with construction pedestal 12, for icon working space 10, be that part cover cap 11 is removed among Figure 1A.And be equipped with many members in the working space 10 in order to construction 3D physical model, for example: the confession powder groove and the drive disk assembly thereof that are installed in the construction powder, the print module of spraying adhesive, the heating component of heat effect is provided, cleaning, preserve the sprayer cleaning device of shower nozzle of print module and sprayer mothballed plant etc. (all not icon), it is identical with the member described in No. 200910130561.2 application for a patent for invention case of applying on March 31st, 2009 in fact, and those members can be arranged on the base platform 123 of construction pedestal 12, so that in working space 10, carry out the making of 3D physical model by these members, yet among Figure 1B of the present invention not figure mark these members, and removed the base platform 123 of part and a sidewall of construction pedestal 12, with simplified so that explanation.
Please consult Figure 1B again, construction pedestal 12 still comprises falling powder dust proof member 121 and construction groove 122, the structure of construction groove 122 and to make flowing mode also similar with the construction groove described in No. 200910130561.2 patent application case, has cell body opening 1211 as for the powder dust proof member 121 that falls, cell body opening 1211 is surrounded on the edge setting of construction groove 122 in fact, in order to do utilizing cell body opening 1211 to receive the construction powder that is fallen by construction groove 122 edges.In present embodiment, be provided with ramp structure 1212 in the cell body opening 1211, make most construction powder can be along ramp structure 1212 landings, inclination plate 1213 along the powder dust proof member 121 that falls comes together in concentrate tube 1214 again, falls into the useless powder groove 15 that links to each other with the concentrate tube 1214 of the powder dust proof member 121 that falls at last.Yet, because in the powder process of shop, the less construction powder of lighter weight or particle may fly upward in working space 10, and when the construction powder is fallen by cell body opening 1211, also may clash into inclination plate 1213 and cause bounce-back, the construction powder that is fallen into useless powder groove 15 by concentrate tube 1214 also may be kicked up because of the bump bounce-back, this all can form the pollution that dust causes working space 10, is that the stereoscopic moulding device 1 with present embodiment further utilizes filtration system 13 to promote the organic efficiency of construction powder.
See also Fig. 2 A to Fig. 2 E, wherein Fig. 2 A is the schematic appearance of the filtration system of the stereoscopic moulding device shown in Figure 1A, Fig. 2 B is a preferred embodiment figure of the internal structure of the filtration system shown in Fig. 2 A, Fig. 2 C is the schematic diagram at another visual angle of Fig. 2 B of the present invention, and Fig. 2 D and Fig. 2 E then are vertical view and the A-A ' profile of Fig. 2 B.Shown in Fig. 2 A to Fig. 2 C, filtration system 13 comprises housing 130, dust filter 131, dust suction inlet 132 and air intake device 133, wherein, housing 130 can comprise first space 1301, second space 1302 (shown in Fig. 2 E) and the 3rd space 1303, wherein the 3rd space 1303 is with dividing plate 1304 and first, second space 1301,1302 separate, and first space 1301 is to be good to be arranged at 1302 tops, second space, and first, second space 1301, be provided with dust filter 131 between 1302, to utilize dust filter 131 with first, second space 1301,1302 are separated.In addition, can be provided with a layout deckle board 1306 between first space 1301 and second space 1302, it is in fact perpendicular to the wall of housing 130 and dividing plate 1034, and define an opening 1307 (shown in Fig. 2 F), its split shed 1307 is to be good with rectangle, but not as limit, layout deckle board 1306 then with one-body molded with housing 130 and dividing plate 1304 be good, make dust filter 131 carry and to be arranged on the layout deckle board 1306.
Please consult Fig. 2 D, Fig. 2 E again and cooperate Fig. 2 F, wherein Fig. 2 F is the layout deckle board of the filtration system shown in Fig. 2 B of the present invention and the exploded perspective view of dust filter, not icon housing 130 and dividing plate 1304 in Fig. 2 F are so that the relation between explanation dust filter 131 and the layout deckle board 1306.Shown in Fig. 2 F, layout deckle board 1306 can be provided with fastener 1308 and clamp assemblies 1309, for example: two fasteners 1308 and two clamp assemblies 1309, it is to be set to good with the corner that is adjacent to opening 1307, for example be arranged at four corners of the rectangular aperture 1307 of contiguous present embodiment, but not as limit.Wherein, fastener 1308 can comprise 1308a of first and second portion 1308b, the 1308a of first extends upward perpendicular to layout deckle board 1306 in fact, and second portion 1308b then is approximately perpendicular to the 1308a of first and extends (shown in Fig. 2 B and Fig. 2 C) towards the direction of opening 1307; Can comprise press section 1309a and top 1309b (shown in Fig. 2 B) as for clamp assemblies 1309, top 1309b can pushing and discharge and movable with press section 1309a, therefore can limit the activity of dust filter 131 by fastener 1308 and clamp assemblies 1309, dust filter 131 can firmly be fixed with respect to layout deckle board 1306.
Please consult Fig. 2 F again and cooperate Fig. 2 E, the dust filter 131 of present embodiment can comprise base plate 1311, flanged ring 1312, hole 1313, structures such as dust bag 1314 and packing ring 1315, base plate 1311 is roughly rectangular, and the area of base plate 1311 is in fact greater than by layout deckle board 1306 defined openings 1307, and hole 1313 is to run through to be arranged on the base plate 1311, protrude and be surrounded on the edge setting of hole 1313 in fact with respect to base plate 1311 as for flanged ring 1312,1314 of dust bags are corresponding to hole 1313 and be set on the flanged ring 1312, in order to do hole 1313 is sealed.
In present embodiment, dust bag 1314 is removable dust bag, and its material system is good to be selected from the adhesive-bonded fabric dust bag, and dust bag 1314 shapes can be an arc structure in fact, for example: a semicircular arc, to promote the filter area of dust bag 1314.In addition, for dust bag 1314 firmly is fixed on the base plate 1311, dust filter 131 more utilizes packing ring 1315 to be sheathed on outside dust bag 1314 and the flanged ring 1312, that is dust bag 1314 and flanged ring 1312 handing-over superimposed places (shown in Fig. 2 E), dust bag 1314 comes off and can't reach the effect of filtering dust such as construction powder when avoiding using.In present embodiment, the isostructural numbers of base plate 1311, flanged ring 1312, hole 1313, dust bag 1314 and packing ring 1315 system is good with two, but not as limit, its also visual demand is adjusted.
Please consult Fig. 2 B to Fig. 2 E again, when dust bag 1314 firmly is disposed at by packing ring 1315 after base plate 1311 forms the dust filter 131 of present embodiment, just dust filter 131 can be disposed at first of housing 130, second space 1301, between 1302, wherein the base plate 1311 of dust filter 131 can be fixedly set in by the cooperation of fastener 1308 and clamp assemblies 1309 on the layout deckle board 1306, in order to do covering opening 1307 and separate first with dust filter 131, second space 1301,1302, and the dust bag 1314 of dust filter 131 is to be arranged in first space 1301, change speech, the arc structure of dust bag 1314 is in fact to protrude towards the direction in first space 1301.
Please consult Fig. 2 B again and cooperate Fig. 2 C and Fig. 2 D, in present embodiment, air intake device 133 can be placed in the 3rd space 1303, and fixing with respect to dividing plate 1304 by modes such as for example lockings, but not as limit.Air intake device 133 comprises motor 1331 and corresponding mutually inlet scoop 1332 and exhaust outlet 1333, inlet scoop 1332 is run through dividing plate 1304 in fact and is connected with first space 1301, exhaust outlet 1333 then can be in the face of a plurality of exhaust mesh 1305 of housing 130, with gas 1332 suctions in first space 1301, discharge outside the housings 130 by exhaust outlet 1333 and exhaust mesh 1305 again when turning round from the inlet scoop with motor 1331 in air intake device 133.
Please consult Fig. 2 C again and cooperate Fig. 2 A, the dust suction inlet 132 of filtration system 13 runs through dividing plate 1304, to be connected with second space 1302, in present embodiment, the number system of dust suction inlet 132 is good with three, but not as limit, and the second end 142 of the pipe fitting 14 of stereo shaping device 1 is connected and fixed on dust suction inlet 132,141 of first ends corresponding to the second end 142 run through housing 130, and for icon dust suction inlet 132, all pipe fittings 14 are not drawn among Fig. 2 C.In addition, shown in Fig. 2 E, filtration system 13 also comprises retracting device 134, for example: one reclaims box, it is to be placed in second space 1302, and second space 1302 optionally sets up a through hole 1302a, and it is to control the unlatching of through hole 1302a with closed by valve 1302b.Housing 130 is provided with the first cover piece 1300a and the second cover piece 1300b again, it is corresponding first space 1301 and second space 1302 respectively, with in first, second cover piece 1300a, make first, second space 1301,1302 present sealing state when 1300b closes, and when first, second cover piece 1300a, 1300b open, allow the user can take out dust filter 131 and retracting device 134.
Please consult Figure 1A again, Figure 1B also cooperates Fig. 2 A to Fig. 2 C and Fig. 2 E, when filtration system 13 is desired and construction pedestal 12 mutually during assembly, filtration system 13 can be arranged at the below of construction pedestal 12, the first end 141 that pipe fitting 14 runs through the housing 130 of filtration system 13 then can be arranged on the base platform 123 of construction pedestal 12 and/or the powder dust proof member 121 that falls, for example: shown in Figure 1B, the stereoscopic moulding device 1 of present embodiment comprises three pipe fittings 14, wherein the second end 142 of pipe fitting 14 all connects and is fixed in the dust suction inlet 132 of filtration system 13, first end 141 then is connected to base platform 123, the powder dust proof member that falls 121 is near inclination plate 1213 places, and on the concentrate tube 1214 of the powder dust proof member 121 that falls, the working space 10 of stereoscopic moulding device 1 can be connected with filtration system 13 by pipe fitting 14.
And when stereoscopic moulding device 1 in when running, the also corresponding startup of the air intake device 133 of filtration system 13, with by the driving of motor 1331 from the inlet scoop 1332 and exhaust outlet 1333 carry out air-breathing and exhaust respectively, make first space 1301 produce negative pressure, move toward first space 1301 by second space 1302 with steering current, again because second space 1302 is to be connected with working space 10 by pipe fitting 14, hence one can see that, in stereoscopic moulding device 1 operation process, fly upward in working space 10 and just can be inhaled into second space 1302 by pipe fitting 14 and dust suction inlet 132 by the negative pressure in first space 1301 because of bump inclination plate 1213 or because of falling into the powder groove 15 that the gives up dust of kicking up such as construction powder that rebound again.
Again owing to be to separate between second space 1302 and first space 1301 with dust filter 131, therefore the dust that enters second space 1302 can be subjected to stopping of dust filter 131 and be detained and concentrate on second space 1302, sucked by air intake device 133 to avoid dust to enter first space 1301, cause the damage of air intake device 133; In addition, owing to be equipped with retracting device 134 in second space 1302, and second space 1302 is to be positioned at side under first space 1301, therefore concentrating on dust in second space 1302 can corresponding own wt mat gravity and fall into retracting device 134, collects the dust that filtration systems 13 suck to utilize retracting device 134.
After stereoscopic moulding device 1 end of job, the air intake device 133 of filtration system 13 can correspondingly stop, so the user can open the first cover piece 1300a, and make dust filter 131 not be subjected to replacing of top 1309b by the press section 1309a that pushes clamp assemblies 1309, to extract dust filter 131 out, and the dust bag 1314 of dust filter 131 unloaded and clean or change action, influence filter effect with the accumulation of avoiding dust; Certainly, the user also can open the second cover piece 1300b, and will be arranged in retracting device 134 taking-ups in second space 1302, to collect the dust in the retracting device 134.In addition, in order to clean second space 1302, also can be in valve 1302b place external air draught equipment (not icon) and Open valve 1302b, will residue in dust sucking-off in second space 1302 to utilize air draught equipment.In some embodiment, also can when opening cover cap 11 and take out stereo shaping product, continue to allow filtration system 13 operate, cause the inconvenience of cleaning to avoid unnecessary dust to disperse to air.
As shown in the above description, in stereoscopic moulding device 1 operation process, the construction powder remove can by around the cell body opening 1211 of the powder dust proof member 121 that falls of construction groove 122 along ramp structure 1212, inclination plate 1213, concentrate tube 1214 falls into outside useless powder groove 15 collections, dust such as the construction powder of kicking up also can be by filtration system 13 the running of air intake device 133 make first space 1301 produce negative pressure, and cooperate pipe fitting 14 and will fly upward dust in working space 10 in by second space 1302 of dust suction inlet 132 suction filtration systems 13, by dust filter 131 dust is concentrated on second space 1302 again, reclaimed by retracting device 134 simultaneously, to guarantee that stereoscopic moulding device 1 can not influence operation process because of dust flies upward, and reclaiming dust efficiently, it can increase about one times cleaning effect compared to prior art; In addition, also can prevent that by dust filter 131 air intake device 133 from sucking dust and damaging.
Certainly, filtration system 13 employed dust filters of the present invention are not limited to above-mentioned enforcement aspect.See also Fig. 3, it is the schematic diagram that the dust filter of another preferred embodiment of the present invention is arranged at the layout deckle board.As shown in Figure 3, the dust filter 135 of present embodiment can be the sponge of high density mesh, it can rectangular and opening 1307 that defined greater than layout deckle board 1306 in fact, firmly be arranged between first, second space 1301,1302 and sealed open 1307 in order to do the sponge that utilizes fastener 1308 and clamp assemblies 1309 with the high density mesh, as for the filtration system that is constituted as dust filter 135 with the sponge of high density mesh its to make flowing mode identical with first preferred embodiment shown in Fig. 2 B to Fig. 2 F of the present invention, repeat no more in this.Should understand in addition, the number of pipe fitting 14 of the present invention and dust suction inlet 132 is to be that example describes with three, yet the demand of its visual stereoscopic moulding device 1 and increasing and decreasing, and the position is set also can be adjusted of the first end 141 of pipe fitting 14, it does not exceed with the embodiment those shown.
In sum, filtration system of the present invention is to utilize air intake device to make its first space produce negative pressure, so that the dust that flies upward in the working space of guiding stereoscopic moulding device enters second space of filtration system by pipe fitting and dust suction inlet, and by being arranged at first, dust filter between second space stops dust, can avoid dust to enter first space on the one hand, thereby prevent air intake device suction dust and cause the motor of air intake device to damage, also can effectively dust such as construction powder be concentrated on second space on the other hand, and cooperate retracting device to be reclaimed, so that the regeneration of construction powder.
In addition, the present invention is the demand of visual stereoscopic moulding device also, sets up the dust suction inlet of filtration system, the pipe fitting of cooperation and the set-point in the working space, to promote the effect of drawing dust.Moreover, by filtration system of the present invention, not only can guarantee stereoscopic moulding device normal running and make dust such as construction powder be able to effective recovery under good environment, more can significantly reduce the cleaning time of stereoscopic moulding device, so when avoiding cleaning to stereoscopic moulding device or moulding product the destruction and the injury that may cause.Therefore, stereoscopic moulding device of the present invention and filtration system thereof have the value of industry.
The present invention must be thought and is to modify as all by the personage Ren Shi craftsman who knows this technology, however the scope of neither disengaging such as the desire protection of additional copy application claim institute.
Claims (10)
1. filtration system, it is applied on the working space of stereoscopic moulding device, and this working space is communicated with this filtration system by pipe fitting, and this filtration system comprises:
One housing, it comprises one first space and one second space at least;
One dust filter, it separates this first space and this second space;
One dust suction inlet, it is communicated with this second space, in order to be connected and fixed this pipe fitting; And
One air intake device, it is communicated with this first space, so that this first space produces negative pressure, thereby the dust that this working space flies upward is sucked this second space by this pipe fitting and this dust suction inlet, and dust is concentrated on this second space by this dust filter.
2. filtration system according to claim 1 is characterized in that, this dust filter also comprises:
One base plate, it comprises at least one hole, each this hole edge is provided with a flanged ring;
At least one dust bag, it is to being sheathed on this flanged ring by hole, to seal this hole.
3. filtration system according to claim 2 is characterized in that, this dust filter also comprises at least one packing ring, and it is sheathed on outside this dust bag and this flanged ring, so that this dust bag is fixed with respect to this base plate.
4. filtration system according to claim 2 is characterized in that, this dust bag system of this dust filter is selected from the adhesive-bonded fabric dust bag, and it is an arc structure in fact, and protrudes towards this first direction in space.
5. filtration system according to claim 1 is characterized in that, this dust filter is the sponge of a high density mesh.
6. filtration system according to claim 1, it is characterized in that, be provided with a layout deckle board between this first space and this second space, this layout deckle board defines an opening, and this dust filter is arranged on this layout deckle board and cover this opening, to separate this first space and this second space.
7. filtration system according to claim 6 is characterized in that, this layout deckle board also is provided with at least one fastener and at least one clamp assemblies, so that this dust filter is fixed with respect to this layout deckle board.
8. filtration system according to claim 1, it is characterized in that this of this housing first space is to be positioned at this top, second space, and this housing also comprises one the 3rd space, it is separated with a dividing plate and this first space and this second space, and this air intake device is placed in the 3rd space.
9. filtration system according to claim 8 is characterized in that, this air intake device comprises:
One motor; And
One inlet scoop and an exhaust outlet, it is mutual correspondence, this inlet scoop is run through this dividing plate and is connected with this first space, to carry out air-breathing and exhaust by this inlet scoop and this exhaust outlet respectively by the driving of this motor, makes and produces negative pressure in this first space.
10. filtration system according to claim 1 is characterized in that, also comprises a retracting device, and this retracting device is placed in this second space, to collect the dust that deadweight is fallen in this second space.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102083582A CN102049162A (en) | 2009-11-04 | 2009-11-04 | Filtering system |
| US12/659,843 US8342833B2 (en) | 2009-03-31 | 2010-03-23 | Three-dimensional object forming apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102083582A CN102049162A (en) | 2009-11-04 | 2009-11-04 | Filtering system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102049162A true CN102049162A (en) | 2011-05-11 |
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ID=43954164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102083582A Pending CN102049162A (en) | 2009-03-31 | 2009-11-04 | Filtering system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102049162A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103935037A (en) * | 2014-04-09 | 2014-07-23 | 西安交通大学 | Integrated powder color 3D (Three-Dimensional) printer |
| CN104907174A (en) * | 2015-06-22 | 2015-09-16 | 陈卡丹 | Double airbag electrostatic periodic adsorption dust collection device |
| CN110508067A (en) * | 2018-05-22 | 2019-11-29 | 株式会社久保田 | Working rig |
-
2009
- 2009-11-04 CN CN2009102083582A patent/CN102049162A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103935037A (en) * | 2014-04-09 | 2014-07-23 | 西安交通大学 | Integrated powder color 3D (Three-Dimensional) printer |
| CN103935037B (en) * | 2014-04-09 | 2016-01-20 | 西安交通大学 | The colored 3D printer of a kind of integrated form powder |
| CN104907174A (en) * | 2015-06-22 | 2015-09-16 | 陈卡丹 | Double airbag electrostatic periodic adsorption dust collection device |
| CN104907174B (en) * | 2015-06-22 | 2017-02-01 | 上海智东实业有限公司 | Double airbag electrostatic periodic adsorption dust collection device |
| CN110508067A (en) * | 2018-05-22 | 2019-11-29 | 株式会社久保田 | Working rig |
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Application publication date: 20110511 |