CN104275799B - Colored 3D printing device and method - Google Patents
Colored 3D printing device and method Download PDFInfo
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- CN104275799B CN104275799B CN201410226281.2A CN201410226281A CN104275799B CN 104275799 B CN104275799 B CN 104275799B CN 201410226281 A CN201410226281 A CN 201410226281A CN 104275799 B CN104275799 B CN 104275799B
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Abstract
The invention discloses a colored 3D printing device and method. The colored 3D printing device comprises a fuse wire stacking type 3D printing system and is characterized by further comprising a coloring system which comprises a color spraying head, a pigment solidifying unit, a color spraying head positioning driving unit, a color control unit and a plurality of pigment supply units, wherein the color spraying head comprises a plurality of nozzles; the nozzles are connected with the pigment supply units in a one-to-one correspondence manner; the color spraying head positioning driving unit is used for driving the color spraying head to move along the appearance surface of a layer structure; the color control unit is used for receiving color data of the appearance surfaces of all the layer structures and controlling the pigment supply units according to the color data of the appearance surfaces so as to control the pigment spraying amounts of all pixel points on the appearance surfaces of the nozzles on the layer structures; the color spraying head is used for spraying pigments to the appearance surfaces of the layer structures through the multiple nozzles; the pigment solidifying unit is used for solidifying the pigments. The colored 3D printing device has the advantages of good coloring effect and high product consistency; furthermore, a hardened layer with certain thickness is formed on the surface of a product.
Description
Technical field
The present invention relates to 3D printing technique, especially relate to a kind of colour 3D printing device and Method of printing.
Background technology
The object that 3D printer on the market prints now only has a kind of color, or several different colours material
Combination, tint to process by the surface in later stage again after the completion of printing and realize the object finally wanted, most of painted using manual
Way, batch production when surface colouring at comprehend there is a problem of inconsistent.
Publication No. CN103434135A Chinese invention patent application《A kind of colour 3D printer and its prepare three-dimensional article
Method》Disclose a kind of colour 3D printer, the color printing as needed, using premixed device to red, yellow, blue three chromoresins
Then mixed resin is printed by the color required for being mixed to form, the final 3D product obtaining colour.But
It is that the program has problems with：The color needing each pixel of product printing all may be different, therefore, entirely print
Process needs continuous turn colors, and the glue amount required for single pixel point is very little, is printed by the way of premixing
It is difficult to realize switching between different colors, and it is difficult to ensure that the glue of a front color does not have in premixer
Remain and affect the effect of a rear color.
Content of the invention
The technical problem to be solved is：There is provided a kind of colour 3D printing device and Method of printing, for realizing
Higher-quality 3D printing.
The technical problem of the present invention is solved by following means：
A kind of colour 3D printing device, including fuse stack 3D printing system, for successively printing to form 3D product；
Also include toning system, described toning system is used for often having printed one layer in described fuse stack 3D printing system
After Rotating fields, the appearance of described Rotating fields is painted；
Described toning system include paint-spraying head, pigment solidified cell, paint-spraying head Locating driver unit, color control unit and
Multiple paint supply units；
Described paint-spraying head includes multiple spouts with described paint supply element number identical, described spout and described pigment
Feeding unit is connected correspondingly；
Described paint-spraying head Locating driver unit is used for driving described paint-spraying head to move along the appearance of described Rotating fields；
Described color control unit is used for receiving the appearance color data of the described Rotating fields of each layer, and according to described outward appearance
Face color data controls described paint supply unit, with control each described spout the appearance in described Rotating fields each
The pigment quantity for spray of pixel；
Described paint-spraying head is used for being sprayed at the pigment from the plurality of paint supply unit by the plurality of spout
The appearance of described Rotating fields；
Described pigment solidified cell is used for solidification and is sprayed at the pigment in the appearance of described Rotating fields.
Compared with prior art, the colored 3D printing device of the present invention, stacks the Rotating fields of shaped article, so by fuse
Appearance Color data according to Rotating fields afterwards, carries out color coating spraying, solidification thus ultimately forming product to every structure layer by layer
Complete coloured appearance.Had more using carrying out the manual technology painted, colouring quality after the completion of printing with respect to prior art
Good concordance；And due to being successively to paint, be not in the dead angle that cannot paint；Colouring adopts multi-port shower nozzle, every time
Spraying can form a pixel, need not carry out premixing to pigment, therefore, there is also the front color spray existing for premixing
The problem of a color spray effect after pigment remaining influence, can accurately realize color spraying.
Preferably：Described paint-spraying head includes three shower nozzles, and described toning system includes three paint supply units；Or institute
State paint-spraying head and include four shower nozzles, described toning system includes four paint supply units, one of paint supply unit is used
In supply black pigment.The scheme of three shower nozzles can form full-color spraying by spraying red, yellow, blue three-color pigment, and four
The scheme of shower nozzle can increase blacking on the basis of three shower nozzles, for the spraying of black portions.
Preferably：The bore of described spout is 25 μm -35 μm.Distance between spout is preferably smaller than 0.07mm.
Preferably：Described color control unit includes color analysis module and paint supply unit control module, described face
Colour analysiss module is used for receiving the appearance color data of described Rotating fields, and described appearance color data is parsed with
Obtain the pigment quantity for spray data required for each pixel being formed corresponding to this appearance color data；Described paint supply
Unit control module is for the pigment quantity for spray data according to required for each pixel described to paint supply list each described
The switch valve of unit is controlled.
Preferably：Described fuse stack 3D printing system includes workbench and its driver element, the X of Z-direction movement
The fuse printhead of axle and Y direction movement and its driver element and the wire tray for supplying silk to described fuse printhead.
Preferably：Described paint-spraying head is fixedly connected with described fuse printhead；Described toning system is printed with described fuse
The driver element of head is as described paint-spraying head Locating driver unit.This preferred version passes through to the multiplexing printing head drive unit,
The complexity of structure, reduces cost can be reduced.
Preferably：There is microcellular structure so that being sprayed at institute in the silk that described fuse stack 3D printing system is adopted
State the pigment in the appearance of Rotating fields can partly penetrate in described Rotating fields.This preferred version is using having microcellular structure
Silk so that pigment can partial penetration to Rotating fields inside so that the color of product have extraordinary anti-scratch
Wipe performance.
A kind of colour 3D printing method, for successively printing each Rotating fields of 3D product to form 3D product, including with
Lower step：
S1, the model of a layered structure data reading current Rotating fields and appearance color data；
S2, carry out fuse according to described model of a layered structure data and print forming current Rotating fields；
S3, according to described appearance color data, obtain required for each pixel in the appearance of current Rotating fields
The quantity for spray of each pigment, and each pigment of corresponding quantity for spray is sprayed at each described pixel；
S4, the pigment to spraying in the appearance of described Rotating fields solidify；
S5, repeat step S1-S4 complete to printing.
Preferably：In described step S2, fuse prints adopted silk is the silk with microcellular structure.
Preferably：Described pigment employed in described step S3 is UV ink.
Compared with prior art, the method for the present invention adopt successively colouring scheme, equally have colouring quality good, product
Conforming advantage.Preferred version can form the interpenetrative color layers with Rotating fields material using the silk of microcellular structure,
Can effectively prevent scraping from fading；Preferred version adopts UV ink, can have raising product by the UV ink formation of high rigidity hard
The color layers of degree, in the case of being especially the cooperation of microcellular structure silk, can enough be greatly improved the hardness of product.
Brief description
Fig. 1 is the structural representation of the toning system of colored 3D printing device of the present invention；
Fig. 2 is the spout structure schematic diagram of the three spout paint-spraying heads of the present invention；
Fig. 3 is the spout structure schematic diagram of the four spout paint-spraying heads of the present invention；
Fig. 4 is the structural representation of the colored 3D printing device of the specific embodiment of the invention 1；
Fig. 5 is the structural representation of the colored 3D printing device of the specific embodiment of the invention 2.
Specific embodiment
With reference to preferred embodiment the invention will be further described.
A kind of colour 3D printing device, including fuse stack 3D printing system and toning system.
Fuse stack 3D printing system, for each structure layer by layer of successively printed product, thus ultimately form needs beat
The 3D product of print.Fuse stacks, and is fusion sediment rapid shaping (FDM) or fuse deposition, it is by thread heat-fusible materials again
(silk hereinafter) heating and melting, by the shower nozzle with a minute nozzle squeeze spray, be deposited on print job deck plate or
The structure from level to level of 3D product is formed on the cured material of person's preceding layer, temperature starts after being less than solidification temperature to solidify, and passes through
The layer upon layer of material forms final finished.Preferably in scheme, fuse stack 3D printing system includes Z-direction movement
The fuse printhead of workbench and its driver element, X-axis and Y direction movement and its driver element and for beating to described fuse
Print head supplies the wire tray of silk.
The present embodiment, on the basis of fuse stack 3D printing system, increased toning system, in described fuse
Stack 3D printing system has often printed from level to level after structure, and the appearance of described Rotating fields is painted.
As shown in figure 1, the toning system 100 of the present embodiment includes：Paint-spraying head 110, pigment solidified cell 120, paint-spraying head
Locating driver unit 130, color control unit 140 and multiple paint supply unit 150.
Paint-spraying head 110 includes multiple spouts 111, spout 111 and paint supply with paint supply unit 150 quantity identical
Unit 150 is connected correspondingly, and each spout 111 is respectively used to spray the pigment of paint supply unit 150 supply, often
Individual paint supply unit 150 is used for conveying pigment to a spout 111；In order to realize shades of colour, spout 111 and paint supply
Unit 150 can comprise three or four respectively, if adopting four, one of them is used for spray black pigment, the other three
It is respectively used to spraying redness, green and blue pigment, and when adopting three, then be respectively used to spray red, green and blue face
Material.Fig. 2 show the structural representation of the preferred version of the paint-spraying head using three spouts, three spout 111 circumscribed arrangements two-by-two
Become triangular shape, Fig. 3 show the structural representation of the preferred version of the paint-spraying head using four spouts, and four spouts 111 are arranged in
Quadrilateral shape, adjacent spout is mutually circumscribed.For effect of realizing preferably painting, preferably smaller than 35 μm of the bore of described spout, allusion quotation
Type bore can adopt 25-35 μm, and spout spacing is more preferably less than 0.07mm.
Paint-spraying head Locating driver unit 130 is used for driving paint-spraying head 110 to move along the appearance of Rotating fields 001, from
And position paint-spraying head 110 and color spray is carried out to each appearance of Rotating fields 001.Appearance described in the present invention refers to 3D product energy
The position being enough seen is it is however generally that be the circumferential position of every structure layer by layer.Paint-spraying head Locating driver unit 130 can be independent of beating
The driver element of print head, but preferably partly or entirely it is multiplexed the driver element of printhead.
Color control unit 140 is used for receiving the appearance color data of the described Rotating fields of each layer, and according to described outward appearance
Face color data controls described paint supply unit, with control each described spout the appearance in described Rotating fields each
The pigment quantity for spray of pixel.Preferably in scheme, color control unit 140 includes color analysis module and paint supply unit
Control module, described color analysis module is used for receiving the appearance color data of described Rotating fields, and to described outward appearance face
Chromatic number evidence is parsed to obtain the pigment quantity for spray required for each pixel being formed corresponding to this appearance color data
Data；Described paint supply unit control module is for the pigment quantity for spray data according to required for each pixel described to each
The switch valve of individual described paint supply unit is controlled.By the analysis to outward appearance face chromatic number evidence, outward appearance can be extracted
The color of each pixel of face, then obtains obtaining pigment type and the spraying spraying this color needs according to this color analysis
Amount, pigment units feeding unit control module controls each pigment according to analysis result when spraying to each pixel
Switch valve so that control the quantity for spray of each pigment.
Described pigment solidified cell 120 is used for solidification and is sprayed at the pigment in the appearance of described Rotating fields.Pigment solidifies
Unit 120 can be selected according to the species of pigment, for example：If pigment used paints admittedly for UV light, uviol lamp may be selected
As pigment solidified cell 120；And if pigment used is thermosetting ink, then can be solidified single as pigment using heater
Unit, such as infrared lamp.
The present embodiment also provides the Method of printing of aforementioned colour 3D printing device, for successively printing each layer of 3D product
To form 3D product, it comprises the following steps structure：
S1, the model of a layered structure data reading current Rotating fields and appearance color data；Model of a layered structure data is used for
For fuse 3D printing system, successively print Rotating fields.
S2, carry out fuse according to described model of a layered structure data and print forming current Rotating fields.In this step, fuse is beaten
Print the silk that adopted silk preferably has microcellular structure, this microcellular structure can be, but not limited to by the matrix to silk
Add in material and there is the other materials of microcellular structure and produce, for example：Plaster powder materials are participated in ABS substrate.
S3, according to described appearance color data, obtain required for each pixel in the appearance of current Rotating fields
The quantity for spray of each pigment, and each pigment of corresponding quantity for spray is sprayed at each described pixel.Employed in this step
Described pigment be preferably UV ink.
S4, the pigment to spraying in the appearance of described Rotating fields solidify；
S5, repeat step S1-S4 complete to printing.
For being illustrated to the solution of the present invention further, illustrate below in conjunction with more preferred specific embodiment：
Embodiment 1
As shown in figure 4, the colored 3D printer of the present embodiment, including frame 300, fuse stacking be 3D printing system and on
Colour system is united.
Fuse stacks 3D printing system and includes the workbench of Z-direction movement and its driver element, X-axis and Y direction movement
Fuse printhead and its driver element,
The workbench of Z-direction movement and its driver element include heating station 210, the platform 211 of Z-direction movement and Z-direction and watch
Take motor 212, heating station 210 is arranged on the platform 211 of Z-direction movement, Z-direction servomotor 212 passes through Z-direction gear unit
213 are moved up and down along frame with the transmission of Z-direction mobile platform, the platform 211 for driving Z-direction movement.
The fuse printhead of X-axis and Y direction movement and its driver element, it includes fuse printhead 220, X-axis guiding
Post 221, X are to servomotor 222, Y-axis lead 223, Y-direction servomotor 224, X-axis gear unit 225 and Y-axis gear unit
226, X-axis lead 221 and Y-axis lead 223 are located at the top of heating station 210, and fuse printhead 220 is slidably pacified
It is contained on X-axis lead 221, X-axis lead 221 is slidably mounted on Y-axis lead 223；X leads to servomotor 222
Cross X-axis gear unit 225 to be connected with fuse printhead 220 to drive fuse printhead 220 along X-axis by X-axis gear unit 225
Lead moves；Y-direction servomotor 224 is connected single by Y-axis transmission by Y-axis gear unit 226 with X-axis lead 221
Unit 226 drives X-axis lead 221 mobile along Y-axis lead 223, so that fuse printhead 220 can be in X-axis and Y-axis side
Move up and carry out fuse printing.
Wire tray 230 is used for supplying printing silk to fuse printhead 220.
The toning system of the present embodiment adopts the toning system in embodiment illustrated in fig. 1, and it illustrates and refers to above
Description.As shown in figure 4, the paint-spraying head 110 of the toning system of the present embodiment is connected to printhead 220 by a contiguous block 113
Together, paint-spraying head 110 and printhead 220 are all slidably mounted on X-axis lead 221 by contiguous block 113.By so
Setting, paint-spraying head 110 can all be multiplexed the driver element of printhead 220, print in printhead 220 and complete structure from level to level
Afterwards, moved using the driver element drive connection block 113 of printhead to carry out painting using paint-spraying head.
Embodiment 2
As shown in figure 5, the present embodiment and embodiment 1 differ only in paint-spraying head Locating driver unit, the present embodiment
Paint-spraying head Locating driver unit only shares Y-axis lead 223, paint-spraying head Locating driver list with the driver element of printhead 220
Unit adopts X-axis lead, X-axis gear unit and the Y-axis gear unit of the driver element independent of printhead 220, for exempting to repeat,
Hereafter it is described mainly for the difference with embodiment 1, structure division same as Example 1 can be found in embodiment 1
Description.As shown in figure 5, reference 221,225,226 is respectively the X-axis lead of driver element of printhead, X-axis transmission
Unit and Y-axis gear unit, and reference 131,135,136 is respectively the X-axis lead of paint-spraying head Locating driver unit, X
Through-drive unit and Y-axis gear unit, paint-spraying head X passes through X-axis gear unit 135 and paint-spraying head transmission, spray to servomotor 138
Color head Y-direction servomotor 224 is passed through Y-axis gear unit and is driven with X-axis lead, thus by the X of two paint-spraying heads to servo
Movement in X, Y direction for the paint-spraying head 110 realized by motor 138 and Y-direction servomotor 224.
The present embodiment compared with Example 1, can make paint-spraying head separate with printhead, have single driver element during work
Drive such that it is able to reduce the impact to paint-spraying head for the printhead high temperature.
Above content is to further describe it is impossible to assert with reference to specific preferred implementation is made for the present invention
Being embodied as of the present invention is confined to these explanations.For those skilled in the art, do not taking off
On the premise of present inventive concept, some equivalent substitutes or obvious modification can also be made, and performance or purposes are identical, all answer
When being considered as belonging to protection scope of the present invention.
Claims (10)
1. a kind of colour 3D printing device, including fuse stack 3D printing system, for successively printing to form 3D product, its
It is characterised by：
Also include toning system, described toning system is used for often having printed in described fuse stack 3D printing system tying from level to level
After structure, the appearance of described Rotating fields is painted；
Described toning system includes paint-spraying head, pigment solidified cell, paint-spraying head Locating driver unit, color control unit and multiple
Paint supply unit；
Described paint-spraying head includes multiple spouts with described paint supply element number identical, described spout and described paint supply
Unit is connected correspondingly；
Described paint-spraying head Locating driver unit is used for driving described paint-spraying head to move along the appearance of described Rotating fields；
Described color control unit is used for receiving the appearance color data of the described Rotating fields of each layer, and according to described outward appearance face
Paint supply unit described in color Data Control, to control each pixel of the appearance in described Rotating fields of each described spout
The pigment quantity for spray of point；
Described paint-spraying head is described for being sprayed at the pigment from the plurality of paint supply unit by the plurality of spout
The appearance of Rotating fields；
Described pigment solidified cell is used for solidification and is sprayed at the pigment in the appearance of described Rotating fields.
2. according to claim 1 colour 3D printing device it is characterised in that：Described paint-spraying head includes three shower nozzles, institute
State toning system and include three paint supply units；Or
Described paint-spraying head includes four shower nozzles, and described toning system includes four paint supply units, one of paint supply
Unit is used for supplying black pigment.
3. according to claim 1 colour 3D printing device it is characterised in that：The bore of described spout is 25 μm -35 μm.
4. according to claim 1 colour 3D printing device it is characterised in that：Described color control unit includes color and divides
Analysis module and paint supply unit control module, described color analysis module is used for receiving the appearance number of colours of described Rotating fields
According to, and described appearance color data is parsed to obtain each pixel being formed corresponding to this appearance color data
Required pigment quantity for spray data；Described paint supply unit control module is used for according to required for each pixel described
Pigment quantity for spray data is controlled to the switch valve of paint supply unit each described.
5. the colored 3D printing device according to claim 1-4 any one it is characterised in that：Described fuse stack 3D
Print system include the workbench of Z-direction movement and its fuse printhead of driver element, X-axis and Y direction movement and its
Driver element and the wire tray for supplying silk to described fuse printhead.
6. according to claim 5 colour 3D printing device it is characterised in that：Described paint-spraying head and described fuse printhead
It is fixedly connected；Described toning system is using the driver element of described fuse printhead as described paint-spraying head Locating driver unit.
7. the colored 3D printing device according to claim 1-4 any one it is characterised in that：Described fuse stack 3D
In the raw material that print system is adopted, there is microcellular structure, so that the pigment being sprayed in the appearance of described Rotating fields can
Partly penetrate in described Rotating fields.
8. a kind of colour 3D printing method, for successively printing each Rotating fields of 3D product to form 3D product, its feature exists
In comprising the following steps：
S1, the model of a layered structure data reading current Rotating fields and appearance color data；
S2, carry out fuse according to described model of a layered structure data and print forming current Rotating fields；
S3, according to described appearance color data, obtain required for each pixel in the appearance of current Rotating fields each
The quantity for spray of pigment, and each pigment of corresponding quantity for spray is sprayed at each described pixel；
S4, the pigment to spraying in the appearance of described Rotating fields solidify；
S5, repeat step S1-S4 complete to printing.
9. method according to claim 8 it is characterised in that：In described step S2, fuse prints adopted silk is tool
There is the silk of microcellular structure.
10. method according to claim 8 or claim 9 it is characterised in that：Described pigment employed in described step S3 is UV
Ink.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410226281.2A CN104275799B (en) | 2014-05-26 | 2014-05-26 | Colored 3D printing device and method |
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| CN201410226281.2A CN104275799B (en) | 2014-05-26 | 2014-05-26 | Colored 3D printing device and method |
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| EP1982824A2 (en) * | 2006-04-28 | 2008-10-22 | Envisiontec GmbH | Device and method for creating a three dimensional object using mask illumination |
| GB2483285A (en) * | 2010-09-03 | 2012-03-07 | Marc Cardle | Relief Model Generation |
| CN103395206A (en) * | 2013-07-24 | 2013-11-20 | 北京数码视讯科技股份有限公司 | True color printing method and true color printing device |
| CN103434135A (en) * | 2013-08-01 | 2013-12-11 | 甘春丽 | Color 3D printer and method for producing 3D product by color 3D printer |
| CN103692655A (en) * | 2014-01-10 | 2014-04-02 | 上海那恒新材料有限公司 | Color 3D (three-dimensional) printer and corresponding 3D printing method thereof |
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