CN107160671B - A kind of production method and system of color 3D object - Google Patents
A kind of production method and system of color 3D object Download PDFInfo
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- CN107160671B CN107160671B CN201610119405.6A CN201610119405A CN107160671B CN 107160671 B CN107160671 B CN 107160671B CN 201610119405 A CN201610119405 A CN 201610119405A CN 107160671 B CN107160671 B CN 107160671B
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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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Abstract
The present invention provides a kind of production method of color 3D object, includes the following steps: that a. is printed based on the layer structured data of target object using moulding material, forming layer structure achievement；B. after step a or simultaneously, based on layer color data using color inks in layer structure achievement printout surface, forming layer prints achievement；C. it repeats step a and step b and forms multiple layers of printing achievement, and multiple layers of printing achievement are superimposed to form color 3D object；Wherein, when step b is executed after step a, the adjacent Print direction for repeating step a twice is identical；Or when step b and step a is performed simultaneously, the adjacent Print direction for repeating step a twice is opposite.The present invention also provides the manufacturing systems for executing the production method, including processing terminal, drive control device and print head.Production method and manufacturing system of the present invention improve the dimensional accuracy and printing effect of color 3D object.
Description
Technical field
The invention belongs to 3D object rapid shaping fields, more particularly to carry out layer-by-layer superposing type manufacture using inkjet print head
The technology of 3D object, the production method and system of especially a kind of color 3D object.
Background technique
Rapid shaping technique is also known as RP technique or adds formula manufacturing technology, and basic principle is all based on 3D mould
Process heap successively after type slice to make 3D object.
Currently, specifically having fusion sediment technology (referred to as: FDM technology), solid using rapid shaping technique production 3D object
Photoetching technique (referred to as: SLA technology), Selective Laser Sintering (referred to as: SLS technology), laminated forming technology are (referred to as: LOM
Technology) or three dimensional ink jet printing technique (referred to as: 3DP technology) etc..It wherein, is to close in recent years using 3DP technology production 3D object
One of the hot spot for infusing research, especially in terms of how producing full color 3D object using 3DP technology.
The existing report using 3DP technology production color 3D object, if patent name is the " broken colour for 3D printing
The United States Patent (USP) US20150094394A1 of ink, 3D printer and the method for controlling 3D printing ", using red (M), yellow (Y), indigo plant
(C), moulding material of black (BK) the four coloured light solidified resin ink as 3D object, and four chromatic ink is loaded on different sprays respectively
In black print head, print head is controlled by drive control device according to the data information of 3D model and carries out layer-by-layer inkjet printing, due to
Using photocurable resin material, each drop ink that print head sprays has certain volume after photocuring, a large amount of to solidify
Ink droplet successively accumulate and form 3D object.Inkjet print head is the corresponding ink of each pixel in the principle for carrying out inkjet printing
Drop, such as each pixel corresponding injection one red ink droplet when printing red area, each pixel when printing green area
Point needs to spray the blue ink droplet of a yellow drop and one, due in green area a pixel corresponded to two ink droplets and
A pixel has corresponded to an ink droplet in red area, causes the surface irregularity of 3D object at this time, final to influence 3D object
Dimensional accuracy.Therefore, limited varicolored color body can only be printed using the patented technology, and can not achieve full-color
Color.
Separately there is document announcement to make using red (M), yellow (Y), blue (C) three coloured light solidified resin and white (W) light-cured resin
The 3D object that can print full color is used in combination for moulding material.But it is necessary when using this method production color 3D object
Guarantee that the physical property between different materials is almost the same, such as: viscosity, shrinking percentage, surface tension, especially to shrinking percentage
It is required that stringent, if the shrinking percentage between each material is inconsistent, the volume of ink droplet is not of uniform size after carrying out photocuring, makes at this time
At the surface irregularity of 3D object, the final dimensional accuracy for influencing 3D object.Moreover, color 3D object is made using this method,
The cost of manufacture of moulding material is relatively high.
Summary of the invention
For technological deficiency of the existing technology, according to an aspect of the present invention, a kind of color 3D object is provided
The color 3D object is made in production method by layer-by-layer printing, which comprises the steps of:
A. the layer structured data based on target object is printed using moulding material, forming layer structure achievement；
B. after the step a or simultaneously, based on layer color data using color inks in the layer structure outcome table
Face printing, forming layer print achievement；
C. repeating said steps a and step b forms multiple layers of printing achievement, and multiple layer printing achievements are superimposed to be formed
Color 3D object；
Wherein, when the step b is executed after step a, the Print direction phase of the adjacent a of repeating said steps twice
Together；Or
When the step b and step a are performed simultaneously, the Print direction of the adjacent a of repeating said steps twice is opposite.
Preferably, include the following steps: before the step a
A1. the target object is layered, and every layer of correspondence of the structural information based on every layer and acquiring color information
Forming data, the forming data includes the layer structured data and layer color data.
Preferably, it during repeating said steps a and step b, also executes the following steps:
C1. printing forming layer support achievement, the support achievement are carried out using backing material based on the layer structured data
Achievement is printed for two neighboring layer, and support is provided.
Preferably, the moulding material is photosensitive resin material, and color inks are Weak solvent ink；
Preferably, the photosensitive resin material 25 DEG C viscosity be 14~180cps, 25~80 DEG C of viscosity be 5~
15cps；
The viscosity of the Weak solvent ink is 4~14cps, and the surface tension of the Weak solvent ink is 22~35mN/m.
Preferably, the moulding material is white material, transparent material or tinted material.
According to another aspect of the present invention, a kind of manufacturing system of color 3D object is provided, it is any one of aforementioned for executing
The production method characterized by comprising
Processing terminal is used to for the target object being layered, and based on every layer of structural information and color information
Obtain every layer of corresponding forming data；
Drive control device controls the print head based on the forming data and executes printing operation；
Print head, is used for jet printing material, and the print head includes at least one moulding material channel, color inks
Channel and spray orifice.
Preferably, the set-up mode in the moulding material channel and color inks channel is following one kind:
The print head is provided with the moulding material channel, and is located at the side in the color inks channel；
The print head is provided with two moulding material channels, and two moulding material channels are along Print direction
It is located at the two sides in the color inks channel.
Preferably, the print head is provided with the moulding material channel, and the moulding material channel is along described
The Print direction of print head is located at before color inks channel.
Preferably, the color inks channel is following one kind:
It is made of red ink channel, yellow ink channel and blue ink channel；
It is made of red ink channel, yellow ink channel, blue ink channel and black ink channel.
Preferably, the print head is additionally provided at least one backing material channel.
Preferably, LED light is respectively set in the printing both sides of head along Print direction.
Preferably, further include lifting platform, be used to place the color 3D object.
The production method of color 3D object of the present invention is carried out by the way of layer-by-layer bi-directional printing, be can be improved
The shaping efficiency and reduction forming cost of color 3D object.The layer-by-layer bi-directional printing, i.e. print head during the motion, are begun
Printing operation is executed eventually, is different from the prior art, and after completing a print progress, print head needs reversing reset, then again
Carry out the printing type of next print progress.
The production method of color 3D object of the present invention prints forming layer structure achievement, a side using moulding material
Face avoids the inconsistent influence to flatness of different materials shrinking percentage, on the other hand eliminate using white light-cured resin into
The step of row filling, improve dimensional accuracy and printing effect.
Colored printing is carried out using Weak solvent ink in layer structure achievement later, and then forming layer prints achievement, a side
Face avoids color difference phenomenon caused by mutual bleeding between adjacent color layer, on the other hand also more environmentally-friendly.
Finally printing the color 3D object formed after achievement superposition for multiple layers has the spy that colour gamut is broad, color is true to nature
Point, while the transition between different colours is natural.
Meanwhile the manufacturing system of color 3D object of the present invention, to the moulding material channel of print head and color ink
Aquaporin carries out specific configuration, improves channel utilization index, to cooperate the production method for realizing color 3D object.
Detailed description of the invention
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other feature of the invention,
Objects and advantages will become more apparent upon:
Fig. 1 shows the first specific embodiment of the invention, a kind of flow chart of the production method of color 3D object；
Fig. 2 shows the first embodiment of the present invention, the colour 3D including being layered and obtaining moulding material step
The flow chart of the production method of object；
Fig. 3 shows the second specific embodiment of the invention, a kind of colour being provided with a moulding material channel
The schematic diagram of the manufacturing system of 3D object；
Fig. 4 shows the second embodiment of the present invention, and there are two the color 3D objects in moulding material channel for setting
Manufacturing system schematic diagram；
Fig. 5 shows one embodiment of the present of invention, and there are two the color 3D objects of moulding material container for setting
Manufacturing system schematic diagram；
Fig. 6 shows one embodiment of the present of invention, the schematic diagram in color inks channel and the arrangement of moulding material channel；
And
Fig. 7 shows one embodiment of the present of invention, the signal of two neighboring layer printing achievement and layer support achievement
Figure.
Specific embodiment
Fig. 1 shows a kind of production method of color 3D object, and the colour 3D object is made by layer-by-layer printing
Body specifically comprises the following steps:
Step S101 is first carried out, the layer structured data based on target object is printed using moulding material, forming layer structure
Achievement.Specifically, the layer structured data is made of N number of structure-pixel point data, and print head is according to N number of structure-pixel point
Data ultimately form a layer structure achievement in the corresponding position injection molding material of each structure-pixel point.More specifically, N number of
The structure-pixel point data is actually the corresponding spatial value of N number of structure-pixel point, and drive control device is according to each
The corresponding spatial value of structure-pixel point controls the motion track of the print head, in the corresponding position of each spatial value
It is printed using moulding material.It will be appreciated by those skilled in the art that the layer structure achievement constitutes the entity knot of color 3D object
Structure part, working is to form the appearance profile of the color 3D object, therefore the moulding material selects homogenous material,
E.g. white or tinted material or transparent material etc., select homogenous material the advantages of be, can be to avoid different materials
Between the size as caused by the difference of shrinking percentage it is unstable, while using single condition of cure, curing rate can control.
Further, on the basis of the step S101, subsequent step is divided into two main line processes and carries out, two masters
The difference of line process essentially consists in the progress whether synchronous with the step S101 of subsequent colored printing step.As shown in Figure 1, first
A main line process is that step S1012 is to carry out simultaneously with the step S101, i.e., while executing step S101, executes step
Rapid S1012, based on layer color data using color inks in the layer structure achievement printout surface, forming layer prints achievement.Tool
Body, the layer color data is made of M color pixel point, and print head is according to the M color pixel point datas every
Color inks are sprayed in the corresponding position of a color pixel point, ultimately form layer printing achievement.More specifically, the color inks
It is injected in the layer structure achievement, therefore the M color pixel point datas are with N number of structure-pixel point data
Associated, it further includes each that the color pixel point data, which not only includes the corresponding spatial value of each color pixel point,
The corresponding color-values of color pixel point, the color-values can be based on the color data of cmy color mode, be also possible to be based on
The color data of cmyk color mode, can also be the color data based on other color modes, and definition mode is beaten based on 2D
The technology of print.
Further, the step S1012 and step S101 mode carried out simultaneously is that print head is according to the knot
Conformation vegetarian refreshments data form system point, then according to color picture after the corresponding position injection molding material of structure-pixel point
Vegetarian refreshments data spray color inks on the system point of formation, colored structures point are formed, it will be appreciated by those skilled in the art that the color
Pixel number is according to being associated, the i.e. spatial value Yu the structure-pixel of the color pixel point with the structure-pixel point data
The spatial value of point is associated.
Further, step S1013 is executed, the S1012 is repeated and the step S101 forms multiple layers of printing achievement,
Wherein, the Print direction of the adjacent S101 of repeating said steps twice is opposite.It will be appreciated by those skilled in the art that due to the S1012
It is synchronous progress, i.e., the forming process of the described layer structure achievement and the print procedure using color inks with the step S101
It is synchronous, therefore print head can form a layer printing achievement in a print progress, on this basis, when print head is opened
Begin next print progress when, in the prior art, print head is further continued for synchronous executing the step firstly the need of reversing reset
S101 and S1012, in this way, the Print direction of step S101 is identical (actually step in former and later two print progress
The Print direction of S1012 is also identical).And in the present invention, after previous print progress, reversing reset step is omitted
Suddenly, while the latter print progress is reversed relative to previous print progress, in this way, former and later two print progress
In, the Print direction of step S101 is opposite (Print direction of actually step S1012 is also opposite), compared to existing
Technology, present invention omits reversing reset steps, to substantially increase shaping efficiency.
As shown in Figure 1, second main line process is, step S1022 is carried out after the step S101, that is, is first carried out
Step S101 forming layer prints achievement, then executes step S1022 again, based on layer color data using color inks in the layer
Structure achievement printout surface, forming layer print achievement.It will be appreciated by those skilled in the art that the printing principle of the step S1022 with
The step S1012 is similar, the difference is that, the mode of the step S1022 and step S101 cooperation realization
It is different.Specifically, it is (real by executing step S101 to be initially formed a layer structure achievement in previous print progress for print head
It is existing), printing forming layer printing achievement is carried out in this layer of structure achievement using color inks in the latter print progress, therefore the
In two main line processes, two print progress is needed just to form a layer printing achievement, and the first main line process then only needs one
Print progress forms a layer printing achievement.Which, it will be appreciated by those skilled in the art that main line process is selected to be printed, take
Certainly in the complexity of the curing rate of moulding material and color 3D object color, curing rate is faster, and color is simpler, then
It is preferred that the first main line process is used, conversely, then preferably using the second main line process.
Further, step S1023 is executed, the S1022 is repeated and the step S101 forms multiple layers of printing achievement,
Wherein, the Print direction of the adjacent S101 of repeating said steps twice is identical.It will be appreciated by those skilled in the art that with the first main line process
It is similar, it is same to omit reversing reset step when starting the latter print progress in the second main line process, specifically, second
In main line process, the step S101 and step S1022 be front and back alternately, during executing step S1023, i.e.,
During repeating step S101 and step S1022, after omitting reversing reset step, step S101 and step S1022
Print direction be actually opposite, correspondingly, the Print direction of the adjacent S101 of step twice is then identical.Likewise,
It is slow in mold material cures speed, and in the case of color 3D object color is more complicated, pass through second main line process
Shaping efficiency equally can be improved in printing type.
Further, on the basis of aforesaid plurality of step, step S104 is executed, by multiple layer printing achievement superpositions
Form color 3D object.It will be appreciated by those skilled in the art that this step is forming step, the target object is divided into plurality of layers,
It is successively printed and is superimposed by aforementioned all steps, ultimately form the color 3D object.More specifically, step S104
The superposition is not the last the step of of just executing, but executes along with abovementioned steps, that is, passes through the step
Rapid S101 to step S1013 completes a layer by step S101 to step S1023 and prints achievement to be superimposed one layer, this
The process of superposition is the process of an accumulation type, and the direction of superposition had both included the extending direction superposition along each layer, also includes
Along the superposition of the fabrication orientation of the target object, color 3D object all is ultimately formed after the completion of superposition.
As the first embodiment of the present invention, Fig. 2 shows the colours including being layered and obtaining moulding material step
The flow chart of the production method of 3D object, specifically comprises the following steps:
Step S201 is first carried out, the target object is layered, and the structural information based on every layer and color letter
Breath obtains every layer of corresponding forming data, and the forming data includes the layer structured data and layer color data.This field skill
Art personnel understand that the purpose of this step is the target object being converted to data mode, and wherein target object can pass through
The mode of scanning obtains structural information and color information, and being then converted into the structural information and color information can end processed
The data format of the hierarchy slicing software identification at end, such as STL format, PLY format, WRL format.Specifically, the structure letter
Breath and color information are to carry out slicing delamination by delamination software after that is, described target object is scanned, so as unit of layer
Each slicing layer is parsed afterwards to obtain every layer of structural information and color information, then every layer of structural information and color are believed
Breath is converted into layer structured data and layer color data.
As a kind of variation, target object can also directly be drawn out by mapping software, common mapping software
Such as: CAD, Proe, Solidwork, UG, 3D Max, it will be appreciated by those skilled in the art that is drawn out by mapping software is institute
The basic structure model of target object is stated, is also matched colors on this basis to the basic structure drawn out, color matching mode is commonly used
There are many, for example, being converted into PLY format after directly matching colors to the basic structure model drawn；In another example it is soft to draw
The basic structure model that part is drawn is matched colors again after being converted into STL format；Those skilled in the art can be in the prior art
On the basis of do different variations, it will not be described here.
Further, on the basis of step S201, then step S202 to step S2014 or step S202 is executed to step
Rapid S2024, concrete implementation mode are referred in specific embodiment shown in fig. 1 about step S101 to step S1013
Or step S101, to the description of step S1023, it will not be described here.
Further, during executing step S2014 or step S2024, also execution step S205, based on described
Layer structured data carries out printing forming layer support achievement using backing material, and the support achievement is that two neighboring layer prints achievement
Support is provided.It will be appreciated by those skilled in the art that in the present invention, the planform of two neighboring layer printing achievement if it is different,
May exist later layer portion make somebody a mere figurehead preceding layer the phenomenon that, at this time before printing one layer when also need additionally print support
Layer, prevents collapse phenomenon to provide support for later layer.Fig. 7 shows two neighboring layer printing achievement P1, P2's and supporting layer P
Positional relationship, with the more vivid purpose for indicating step S205.Specifically, the printing principle of step S205 is with step S101's
Printing principle be it is similar, when being printed using the backing material, the corresponding spatial position coordinate of each support pixel
Value is also based on the layer structured data and obtains.It more specifically, can basis when the step S201 obtains layer structured data
The basic structure of adjacent two layers constructs numerous support pixels, and is each support pixel installation space coordinate value, will be numerous
Support a part of the corresponding numerous spatial values of pixel as layer structured data.
In a preferred embodiment, the moulding material is photosensitive resin material, and color inks are Weak solvent ink.
The viscosity that the photosensitive resin material (is typically sized as 25 DEG C) at room temperature is 14~180cps, is 5 in 25~80 DEG C of viscosity
~15cps；The viscosity of the Weak solvent ink is 4~14cps, and the surface tension of the Weak solvent ink is 22~35mN/m.
It will be appreciated by those skilled in the art that the moulding material is used to make the structure division of the color 3D object, then pass through colour
Ink forms structure division colouring in the moulding material and completes the production, therefore the basic principle of moulding material color is selected to be into
The color of profile material will not influence the colour developing of color inks on the surface thereof, and correspondingly, the moulding material can be white material
Any one of material, transparent material or tinted material.
Further, it will be appreciated by those skilled in the art that in the prior art, common color inks be solvent-based inks or
Water-based ink, due to the environmental issue of solvent-based inks, less use, although and water-based ink is environmentally friendly, its drying speed
Degree is slow, is easy bleeding.In the present invention, since the present invention is using layer-by-layer bedirectional printing, i.e. print head is being moved through
Cheng Zhong executes printing operation or injection molding material, or injection color inks always, although improving printing effect in this way,
At this time if still use water-based ink, will lead to water-based ink drying it is insufficient, bleeding phenomenon can aggravate, for this purpose, of the invention
Weak solvent ink is used instead to paint, it on the one hand can be on the other hand also more environmentally-friendly to avoid bleeding phenomenon.
Specifically, several examples applied to photosensitive resin material of the invention and Weak solvent ink be shown below:
Example one:
Formula table:
Parameter list:
Example two:
Formula table:
Parameter list:
Example three:
Formula table:
Parameter list:
Example four:
Formula table:
Parameter list:
Fig. 3 shows the second specific embodiment of the invention, a kind of colour being provided with a moulding material channel
The manufacturing system of 3D object, the production method for being used to execute aforementioned first specific embodiment and embodiment description, mainly
Include: processing terminal 2, is used to for the target object 1 being layered, and the structural information based on every layer and color information obtain
Take every layer of corresponding forming data.It is dynamic to control the execution of print head 5 printing based on the forming data for drive control device 3
Make.
Further, the realization of 3 function of the processing terminal 2 and the drive control device can be hardware, by processor
The software or combination of execution.It specifically, can be by preparatory burning program described in if realized by software module
In processor, or by software installation into preset system；If by hardware realization, using field-programmable gate array
Column (FPGA) realize corresponding function immobilization.
Further, the software module can store in RAM memory, flash memory, ROM memory, eprom memory,
The storage medium of any other known form of hard disk or this field.By the way that the storage medium is coupled to processor, thus
So that the processor is read information from the storage medium, and information can be written to the storage medium.As
A kind of variation, the storage medium can be component part or the processor and the equal position of the storage medium of processor
In on specific integrated circuit (ASIC).
Further, the hardware can be that by the general processor of concrete function, digital signal processor
(DSP), specific integrated circuit (ASIC), field programmable gate array (FPGA) or other programmable logic device, discrete gate or
The combination of transistor logic, discrete hardware components or the above hardware.As a kind of variation, can also be set by calculating
Standby combination realizes, for example, the combination of DSP and microprocessor, the combination of multi-microprocessor, with DSP communicating one combined
Or combination of multi-microprocessor etc..
Further, below in conjunction with target object 1 shown in Fig. 3, backing material container 4e, color ink container 4b,
The colour 3D is described in detail in 4c, 4d, moulding material container 4a, print head 5, LED light 6 and 6 ', guide rail 7 and lifting platform 8 etc.
Object manufacturing process.Specifically, the processing terminal 2 obtains the molding number of the target object 1 by way of step S201
According to the forming data includes layer structured data and layer color data.The forming data is sent institute by the processing terminal 2
Drive control device 3 is stated, the drive control device 3 completes printing according to the second main line process in Fig. 1 and Fig. 2.
Further, the drive control device 3 completes corresponding printing operation by controlling print head 5, as shown in figure 3,
The print head 5 includes backing material channel 5e, moulding material channel 5a, color inks channel 5b, 5c, 5d, the fid
Material channel 5e connects the backing material container 4e by connecting tube, and the moulding material channel 5a passes through described in connecting tube connection
Moulding material container 4a, the color inks channel 5b, 5c, 5d connect color ink container 4b, the 4c by connecting tube,
4d, the backing material, moulding material, color inks from the backing material container 4e, color ink container 4b, 4c, 4d, at
Profile material container 4a imported into print head 5, and is sprayed by spray orifice.Specifically, the color ink container 4b, 4c, 4d point are
Red ink container, yellow ink container and blue ink container, correspondingly, the color inks channel 5b, 5c, 5d points are
Red ink channel, yellow ink channel and blue ink channel.According to color management theory, primary colors red (M), Huang are used
(Y), blue (C) can be realized full color according to different mixed proportion mixing, and as a kind of variation, red (M), Huang also can be used
(Y), blue (C) and black (BK) realizes full color, in the present invention 5 color inks channel of print head be specifically configured to triple channel M,
Y and C or four-way M, Y, C and BK are unrestricted.
Further, print head 5 advances on guide rail 7 in X direction under the control of drive control device 3, in the mistake of advance
Cheng Zhong, moulding material channel 5a injection molding material, meanwhile, drive control device 3 is based on layer structured data and is needing backing material
Position control print head 5 backing material is sprayed by backing material channel 5e, and by the way that the LED of 5 side of print head is arranged in
The irradiation of lamp 6 ' solidifies, and step S101 is realized after such a print progress.Later, in next print progress,
Print head 5 advances on guide rail 7 along -X direction under the control of drive control device 3, and in advancement, color inks are logical
Road 5b, 5c, 5d spray color inks, and the irradiation solidification of the LED light 6 by the way that 5 other side of print head is arranged in, such a printing
Step S1022 is realized after process.Later, print head 5 moves a stepping along Y-direction, repeats above-mentioned front and back two
A print progress is and so on finally completed one layer of printing.
Further, after completing one layer of printing in the manner described above, drive control device 3 controls lifting platform 8 along -Z direction
After declining certain altitude, next layer of printing is completed according still further to same mode, it is preferable that the lifting platform 8 is thick according to layering
Degree gradually declines, and completes lowering action, as a kind of variation, the fall of the lifting platform 8 by servo motor and screw rod
Lift height can also be greater than, the purpose of the present invention equally may be implemented in this.
As the second embodiment of the present invention, Fig. 4 shows setting, and there are two another colour 3D in moulding material channel
The manufacturing system of object, figure 4, it is seen that Fig. 4 is in place of distinguishing Fig. 3, there are two moldings for the tool of print head 5 in Fig. 4
Material passage 5a, 5f, and color inks channel two sides are located at, below in conjunction with target object 1, fid shown in Fig. 4
Material container 4e, color ink container 4b, 4c, 4d, moulding material container 4a, print head 5, LED light 6 and 6 ', guide rail 7 and lifting
The color 3D object manufacturing process is described in detail in platform 8 etc..Specifically, the processing terminal 2 is obtained by way of step S201
The forming data of the target object 1 is taken, the forming data includes layer structured data and layer color data.The processing terminal
The forming data is sent the drive control device 3 by 2, and the drive control device 3 is according to the first main line in Fig. 1 and Fig. 2
Process completes printing.
Further, print head 5 advances on guide rail 7 in X direction under the control of drive control device 3, in the mistake of advance
Cheng Zhong, moulding material channel 5a injection molding material, and color inks channel 5b, 5c, 5d spray color inks, then by setting
The irradiation solidification of LED light 6 ' in 5 side of print head is set, the step S101 realized in this way is synchronous with step S1012's to carry out, together
When, drive control device 3 passes through backing material channel 5e in the position control print head 5 for needing backing material based on layer structured data
Spray backing material, and the irradiation solidification of the LED light 6 ' by the way that 5 side of print head is arranged in.Next, completing one in X direction
After print progress, print head 5 moves a stepping along Y-direction, then starts next print progress along -X direction again, at this time at
Type material passage 5f injection molding material, and color inks channel 5b, 5c, 5d spray color inks, meanwhile, drive control device
3 spray backing material by backing material channel 5e in the position control print head 5 for needing backing material based on layer structured data,
And the irradiation solidification of the LED light 6 by the way that 5 other side of print head is arranged in, and then complete next print progress.
Further, back and forth one layer of printing is completed in operation in the way of above-mentioned two process, on this basis, driving
Controller 3 controls lifting platform 8 after -Z direction decline certain altitude, and next layer of printing is completed according still further to same mode, excellent
Selection of land, the lifting platform 8 gradually decline according to lift height, lowering action are completed by servo motor and screw rod, as one kind
The fall of variation, the lifting platform 8 can also be greater than lift height, and the purpose of the present invention equally may be implemented in this.
Based on above description as can be seen that the present embodiment is by two moulding material channel 5a, 5f of setting and is placed in
It, when print head moves in the X-axis direction, is sprayed by moulding material channel 5a in print procedure the two sides in color inks channel
Moulding material is penetrated, when print head edge-X-direction moves, by moulding material channel 5f injection molding material, realizes injection
Moulding material step is synchronous with injection color inks to be carried out, and moved back and forth in print head edge+X-direction and-X-direction
In whole process, printing operation is being executed always, compared to the color 3D object production in one moulding material channel of setting
System, the manufacturing system that the present embodiment is related to can preferably improve the shaping efficiency of 3D object, can preferably realize this hair
Bright purpose.
Further, as shown in figure 4, moulding material from moulding material container 4a via described moulding material channel 5a, 5f
It sprays.As a kind of variation, as shown in figure 5, the color 3D object manufacturing system is additionally provided with moulding material container 4f, it is described
Moulding material channel 5a connection forming material material container 4a, the moulding material channel 5f connection forming material material container 4f, such institute
Different moulding materials can be sprayed by stating moulding material channel 5a, 5f, in other change case, color 3D object production system
Two or more moulding materials can also be arranged in system, and are correspondingly arranged more than two moulding material containers, can mention in this way
The ejection efficiency of high moulding material also can be further improved the shaping efficiency of 3D object, and it will not be described here.
Further, Fig. 6 shows the schematic diagram in color inks channel and the arrangement of moulding material channel, those skilled in the art
Member understands that color inks channel and moulding material channel arrangement schematic diagram shown in Fig. 6 are divided into two kinds, and it is logical that one is moulding materials
Road is located at the side in color inks channel, for realizing Fig. 1 or Fig. 2 shows the second main line process, another kind is two
Moulding material channel is located at the two sides in color inks channel, for realizing Fig. 1 or Fig. 2 shows the first main line into
Journey.Specifically, Fig. 6-1 to 6-3 is provided with a moulding material channel B and a backing material channel S, and the color inks are logical
Road includes the channel M (red ink channel), the channel Y (yellow ink channel) and C-channel (blue ink channel), the support
Material passage S can be located between the channel M, the channel Y, C-channel in color inks channel, and it is logical can also to be located at the color inks
The side in road, and the moulding material channel B is then located at the side of the color inks, can not be located in color inks channel
The channel M, the channel Y, between C-channel.
Further, Fig. 6-4 to 6-6 setting is described there are two moulding material channel B, B ' and a backing material channel S
Color inks channel includes that (blue ink is logical for the channel M (red ink channel), the channel Y (yellow ink channel) and C-channel
Road), the backing material channel S can be located between the channel M, the channel Y, C-channel in color inks channel, can also be located at institute
The side in color inks channel is stated, and the moulding material channel B, B ' are then located at the two sides in the color inks channel,
It can not be located between the channel M, the channel Y, C-channel in color inks channel.
Further, it will be appreciated by those skilled in the art that the moulding material channel cannot be logical positioned at the color inks
The channel M in road, the channel Y, between C-channel, reason is the step of no matter printing using color inks and injection molding material
The step of have sequencing always, even if the step of being printed using color inks is synchronous with the step of injection molding material
It carries out, it is also desirable to be initially formed a system point, colouring processing then is carried out to system point again, i.e., sequencing at this time is with every
The formation of a system point is unit.Correspondingly, the support achievement that the backing material is formed does not need then to paint, therefore supports
Material passage S can be located between the channel M, the channel Y, C-channel in color inks channel.It will be appreciated by those skilled in the art that in Fig. 6
8 kinds of distribution maps are shown altogether, but not including all changes example of arrangement schematic diagram, those skilled in the art can be basic herein
On make more variations.
Specific embodiments of the present invention are described above.It is to be appreciated that the invention is not limited to above-mentioned
Particular implementation, those skilled in the art can make various deformations or amendments within the scope of the claims, this not shadow
Ring substantive content of the invention.
Claims (3)
1. a kind of production method of color 3D object, is made the color 3D object by layer-by-layer printing, feature exists
In including the following steps:
A. the layer structured data based on target object is printed using moulding material, forming layer structure achievement；
B. the step a simultaneously, uses color inks in the layer structure achievement printout surface, forming layer based on layer color data
Print achievement；
C. repeating said steps a and step b forms multiple layers of printing achievement, and multiple layer printing achievements are superimposed to form colour
3D object；
Wherein, when the step b and step a are performed simultaneously, the Print direction of the adjacent a of repeating said steps twice is opposite；
The moulding material is photosensitive resin material, and color inks are Weak solvent ink；
The photosensitive resin material is 14~180cps in 25 DEG C of viscosity, is 5~15cps in 25~80 DEG C of viscosity；It is described
The viscosity of Weak solvent ink is 4~14cps, and the surface tension of the Weak solvent ink is 22~35mN/m；
Wherein, during repeating said steps a and step b, also execute the following steps: c1. is made based on the layer structured data
Printing forming layer support achievement is carried out with backing material, the support achievement prints achievement for two neighboring layer and provides support.
2. manufacturing method according to claim 1, which is characterized in that include the following steps: before the step a
A1. the target object is layered, and the structural information based on every layer and every layer of acquiring color information it is corresponding at
Type data, the forming data include the layer structured data and layer color data.
3. production method according to claim 2, which is characterized in that the moulding material is white material, transparent material
Or any one of tinted material.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610119405.6A CN107160671B (en) | 2016-03-02 | 2016-03-02 | A kind of production method and system of color 3D object |
| PCT/CN2016/093243 WO2017148100A1 (en) | 2016-03-02 | 2016-08-04 | Method and system for fabricating color 3d object |
| US16/106,292 US10919213B2 (en) | 2016-03-02 | 2018-08-21 | Method and system for fabricating colored 3D object |
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| CN201610119405.6A CN107160671B (en) | 2016-03-02 | 2016-03-02 | A kind of production method and system of color 3D object |
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| CN107160671B true CN107160671B (en) | 2019-01-18 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110126274A (en) * | 2019-05-29 | 2019-08-16 | 吴振行 | A kind of multicolour ink jet 3D printing method |
| CN110126275A (en) * | 2019-05-29 | 2019-08-16 | 吴振行 | A kind of colorful 3D printing method |
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