CN107521092A - A kind of direct write type 3D printer - Google Patents
A kind of direct write type 3D printer Download PDFInfo
- Publication number
- CN107521092A CN107521092A CN201711017127.4A CN201711017127A CN107521092A CN 107521092 A CN107521092 A CN 107521092A CN 201711017127 A CN201711017127 A CN 201711017127A CN 107521092 A CN107521092 A CN 107521092A
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- CN
- China
- Prior art keywords
- nozzle
- mechanical arm
- feed liquid
- light source
- path cover
- 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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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
Abstract
The present invention relates to a kind of direct write type 3D printer.The printer includes:1)Mechanical arm;2)Nozzle system, include barrel, nozzle, annular UV exposure devices;3)Feed liquid feed system, including pressure apparatus, feed liquid conveyance conduit, feed liquid storage tank, feed liquid metering control;4)Computer control system.The printer may be implemented in direct 3D shapings on shaped platform or arbitrary objects.
Description
Technical field
A kind of direct write type 3D printer.
Background technology
Using the photocuring characteristic of light-cured resin, 3D printing can be achieved, major print mode is stereolithography apparatus
Method(SLA), light source is scanned or digital exposure in liquid surface or transparent resin trench bottom, forms cured layer, mobile Z side
Realize to position and successively print.
SLA has very high print speed and printing precision, and surface laminated striation is not apparent.Prototype model,
The fields such as ornameutal handiwork are using relatively broad.
But traditional SLA printing print speed is slow, hanging or thin-wall construction needs plus support, and can not be
Arbitrary objects surface forming.
To solve the above problems, the invention discloses a kind of direct write type 3D printer.
The content of the invention
The invention provides a kind of direct write type 3D printer.Can be achieved it is quick, without support or few support, on arbitrary objects
3D printing.
The invention provides a kind of direct write type 3D printer, it is characterised in that it includes:
1)Mechanical arm, it is more than 2 axles, wherein, the section of mechanical arm at least one is connected to rotating disk card, and closure vertical disk
Face;
2)Nozzle system, comprising barrel, nozzle, annular UV exposure devices, wherein annular UV exposure devices include support, light source,
Light path cover, wherein barrel are through-type barrel or static mixer, and wherein nozzle is single injector or coaxial twin-jet nozzle;
3)Feed liquid feed system, including pressure apparatus, feed liquid conveyance conduit, feed liquid storage tank, feed liquid metering control;
4)Control system, include mechanical arm displacement control device and angle controller, the control of annular UV exposure devices, shaping
Platform controller.
Mechanical arm 201, refer to mechanical arms more than 2 axles.Wherein, at least one section is connected with rotating disk card 203, even
It is vertical with card to connect direction.Rotating disk can 360 ° rotation, running accuracy be more than 0.0001 °, preferably more than 0.01 °.
The end stationary nozzle system 202 of mechanical arm 201, as shown in Figure 1.
Rotatable device 204, -180 ° of the anglec of rotation are fixed in mechanical arm end<γ<180 °, preferably -90 °<γ<
90°.Mechanical arm end is less than 90 ° with rotatable device surfaces of revolution angle, as shown in Figure 2.
Nozzle system, as shown in figure 3, comprising barrel 101, nozzle 106, annular UV exposure devices 107, wherein annular UV exposes
Electro-optical device includes support 105, light source 103, light path cover 104, light source heat radiation system 102.UV exposure devices outward flange and shower nozzle material
Pipe outer wall distance 3mm<L3<50mm, preferable 7mm<L3<40mm.0 ° of light source center line and the angle of vertical direction<α<It is 90 °, excellent
10 ° of choosing<α<80°.Light path cover inwall extends the distance L2 of line focus A and nozzle end>2mm, preferable L2>4mm.Light path cover
Inwall and outer wall width 1mm<L1<50mm, preferable 3mm<L1<30mm.Light path cover length 3mm<L4<70mm, preferable 5mm<
L4<40mm。
UV light sources 103, refer to the light source that ultra-violet curing is provided, refer specifically to LED or OLED lamp beads, quantity is 2-50.Light
Source wavelength is 200-500nm Single wavelength or multi-wavelength, and light source general power is 0.05-200W.
UV light sources 103, refer to optical fiber source, quantity is 2-50 beams, and optical source wavelength is 200-500nm Single wavelength or more ripples
Long, light source general power is 0.05-200W.
UV light sources 103, refer to Minitype LED array, single led size length is less than 30 microns, and money is less than 30 microns, light source ripple
A length of 200-500nm Single wavelength or multi-wavelength, light source general power are 0.05-200W.
Barrel 101, refer to lead directly to barrel, barrel internal diameter is homogeneous.It is homogeneous applied to feed liquid, it is not necessary to the feelings further mixed
Condition.
Barrel 101, refers to the barrel with immixture, i.e., static mixer, in particular to, containing playing mixing in cylinder
The mechanism or device of effect, such as spiral catch, more infillings, but it is not limited to said apparatus or mechanism.Applied to multicomponent
Feed liquid is, it is necessary to the situation of mixing.
Barrel 101, outer wall contain heating and attemperator, can control feed temperature at 10-150 degrees Celsius, preferably
At 40-100 degrees Celsius.
Nozzle 106, refers to single injector, suitable for single feed liquid.Nozzle end internal diameter 0.005mm<D<5mm, preferably
0.1mm<D<2mm.Nozzle form is T-shaped 106A1, taper 106A2, but is not limited to above-mentioned shape.
Nozzle 106, refer to coaxial twin-jet nozzle, suitable for extra quality liquid.As illustrated, coaxial twin-jet nozzle 106B1,106B2, outside
Nozzle 106-1 ends internal diameter 0.01mm<D<5mm, preferable 0.1mm<D<3mm;Inner nozzle 106-2 ends internal diameter 0.00001mm<
D<3mm, preferable 0.001mm<D<2.8mm.
Inner nozzle overlaps with outer nozzle center line.Distance 0mm≤L5 < the 4mm of inner nozzle end and nozzle end, it is excellent
0mm≤L5 < 2mm of choosing.Outer nozzle internal diameter is more than inner nozzle external diameter.Outer nozzle is shaped as T-shaped, taper, but is not limited to above-mentioned shape
Shape.Inner nozzle is shaped as T-shaped, taper, but is not limited to above-mentioned shape.Inner nozzle accesses from main burner side wall or along main burner and material
Cylinder inner upper access.Outer nozzle conveying is the feed liquid M containing photosensitive resin, and inner nozzle conveying is different from outer nozzle
Feed liquid containing photosensitive resin, or the solvent incompatible with feed liquid M, water, or gas.
Feed liquid feed system, including pressure apparatus, feed liquid conveyance conduit, feed liquid storage tank, feed liquid metering control.Pressure
Device, refer to provide pressure for feed liquid to extrude the device of feed liquid, be vapour-pressure type plunger pump, screw plunger pump, Screw Extrusion
Device etc., but it is not limited to the device of above-mentioned form.Feed liquid is delivered to expects pipe 101 from storage tank, through pressure apparatus and measure control
Assembling device is exported by nozzle.
Control system, comprising mechanical arm displacement control device and angle controller, the control of annular UV exposure devices, into
Type platform controller.Position and the motion of moving component are controlled by computer, controls light intensity and the unlatching of UV exposure devices
And closing.
During printing, shower nozzle is positioned at shaped platform surface or body surface, feed liquid extrusion, while mechanical arm band first
Dynamic nozzle system is moved by computer program, while opens UV exposure systems, realizes direct write 3D printing.
Printed material, including it is containing photosensitive resin or micro- containing ceramic powder, ceramic forerunner, silicon dioxide powder, polymer
Ball, carbon black, graphene, titanium dioxide powder, calcium carbonate powder, carbon fiber, CNT, glass fibre, basalt fibre, virtue
Synthetic fibre fiber, superhigh molecular weight polyethylene fibers metal(Copper, silver, gold, aluminium and its oxide)Micro-nano granules and other micro-nano
Compound of powder or fiber etc., but it is not limited to above-mentioned photosensitive resin and its composite.
Brief description of the drawings
Fig. 1 is mechanical arm schematic diagram
Fig. 2 is end band rotatable device mechanical arm schematic diagram
Fig. 3 is nozzle system schematic diagram
Fig. 4 is single injector structural representation
Fig. 5 is coaxial dual-nozzle configuration schematic diagram
It should be understood that after present disclosure has been read, those skilled in the art can make various changes or modification to the present invention,
These equivalent form of values are equally in the application appended claims limited range.
Claims (10)
1. a kind of direct write type 3D printer, it is characterised in that it includes:
1)Mechanical arm, it is more than 2 axles, wherein, the section of mechanical arm at least one is connected to rotating disk card, and closure vertical disk
Face;
2)Nozzle system, comprising barrel, nozzle, annular UV exposure devices, wherein annular UV exposure devices include support, light source,
Light path cover, wherein barrel are through-type barrel or static mixer, and wherein nozzle is single injector or coaxial twin-jet nozzle;
3)Feed liquid feed system, including pressure apparatus, feed liquid conveyance conduit, feed liquid storage tank, feed liquid metering control;
4)Control system, include mechanical arm displacement control device and angle controller, the control of annular UV exposure devices, shaping
Platform controller.
2. mechanical arm according to claim 1, it is characterised in that mechanical arm end stationary nozzle system.
3. mechanical arm according to claim 1, it is characterised in that mechanical arm end connects rotatable device.
4. rotating device according to claim 3, it is characterised in that stationary nozzle system on rotatable device.
5. light source according to claim 1, it is characterised in that be 2-50 LED, OLED lamp bead.
6. light source according to claim 1, it is characterised in that be 2-50 beam optical fiber sources.
7. light source according to claim 1, it is characterised in that be Minitype LED array.
8. light source according to claim 1, it is characterised in that light source is the ultraviolet light that general power is 0.05-200W.
9. light path cover according to claim 1, it is characterised in that light path cover inwall extend line focus and nozzle end away from
From 3mm<L3<50mm.
10. light path cover according to claim 1, it is characterised in that light path cover center line extended line and the folder of vertical direction
0 ° of angle<α<90°.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201711017127.4A CN107521092A (en) | 2017-10-26 | 2017-10-26 | A kind of direct write type 3D printer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN201711017127.4A CN107521092A (en) | 2017-10-26 | 2017-10-26 | A kind of direct write type 3D printer |
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CN107521092A true CN107521092A (en) | 2017-12-29 |
Family
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CN201711017127.4A Pending CN107521092A (en) | 2017-10-26 | 2017-10-26 | A kind of direct write type 3D printer |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111408721A (en) * | 2020-04-03 | 2020-07-14 | 北京机科国创轻量化科学研究院有限公司 | Aluminum alloy semi-solid state melting three-dimensional direct-writing forming method |
Citations (6)
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CN104859149A (en) * | 2015-05-08 | 2015-08-26 | 杭州捷诺飞生物科技有限公司 | Rapid photocuring spray head for 3D printing device |
CN105341280A (en) * | 2015-10-09 | 2016-02-24 | 中国电子科技集团公司第二十研究所 | Mechanical arm-based 3D food printer |
CN205130407U (en) * | 2015-11-04 | 2016-04-06 | 厦门强本科技有限公司 | 3D (three -dimensional) printing device |
WO2016125138A2 (en) * | 2015-02-02 | 2016-08-11 | Massivit 3D Printing Technologies Ltd | A curing system for printing of 3d objects |
US20170165914A1 (en) * | 2015-12-14 | 2017-06-15 | International Business Machines Corporation | Pulsed uv light nozzle for selective curing of 3d printed material |
CN107150441A (en) * | 2017-06-22 | 2017-09-12 | 北京科田高新技术有限公司 | A kind of 3D printer |
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2017
- 2017-10-26 CN CN201711017127.4A patent/CN107521092A/en active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016125138A2 (en) * | 2015-02-02 | 2016-08-11 | Massivit 3D Printing Technologies Ltd | A curing system for printing of 3d objects |
CN104859149A (en) * | 2015-05-08 | 2015-08-26 | 杭州捷诺飞生物科技有限公司 | Rapid photocuring spray head for 3D printing device |
CN105341280A (en) * | 2015-10-09 | 2016-02-24 | 中国电子科技集团公司第二十研究所 | Mechanical arm-based 3D food printer |
CN205130407U (en) * | 2015-11-04 | 2016-04-06 | 厦门强本科技有限公司 | 3D (three -dimensional) printing device |
US20170165914A1 (en) * | 2015-12-14 | 2017-06-15 | International Business Machines Corporation | Pulsed uv light nozzle for selective curing of 3d printed material |
CN107150441A (en) * | 2017-06-22 | 2017-09-12 | 北京科田高新技术有限公司 | A kind of 3D printer |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN111408721A (en) * | 2020-04-03 | 2020-07-14 | 北京机科国创轻量化科学研究院有限公司 | Aluminum alloy semi-solid state melting three-dimensional direct-writing forming method |
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