CN106853687B - A kind of color jet-ink 3D printing method of automatic equating - Google Patents
A kind of color jet-ink 3D printing method of automatic equating Download PDFInfo
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- CN106853687B CN106853687B CN201710012770.1A CN201710012770A CN106853687B CN 106853687 B CN106853687 B CN 106853687B CN 201710012770 A CN201710012770 A CN 201710012770A CN 106853687 B CN106853687 B CN 106853687B
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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
- B33Y10/00—Processes of additive manufacturing
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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
- B33Y70/00—Materials specially adapted for additive manufacturing
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Abstract
The present invention provides a kind of color jet-ink 3D printing methods of automatic equating, will be added in the print cartridge of 3D printer comprising colorant, photoinitiator and ultraviolet photocureable material object first；Printer head has a liquid bath, and the bottom in liquid bath is equipped with a highly controllable supporting table, and ultraviolet photocureable material is added in liquid bath, the initial horizontal plane for setting supporting table plane and being lower than liquid bath liquid；The mode input printed will be needed to carry out setting of printing into 3D printer；Start printer, material is ejected into supporting table by spray head, is mixed with the liquid in liquid bath in supporting table, ultraviolet light molding is repeated in model needed for printing accumulation is formed.It is all to print in the liquid state due to printing every time, liquid level levelling or power can be bulldozed automatically, and obtained product surface is smooth, and various material colour print may be implemented in the processing of no later period backing material.
Description
Technical field
The invention belongs to inkjet printing technology fields, and in particular to one kind automatically can be with the color jet-ink 3D printing of equating
Method.
Background technique
3D printer has about 30 years history for business, is no longer already for the professional person of related fields
Fresh-core technique.In Past 30 Years, teacher of being designed, engineer and scientist are used to manufacture disposable engineering goods for it
And model.There is 3D printer, any article that oneself can be envisioned as coming by we establishes model in computer, by beating
Print machine is turned to material object.Different types of 3D printing technique is because moulding material used is different, forming principle and system features
It has nothing in common with each other, but its basic principle is the same, that is, " Layered manufacturing is successively superimposed ".3D printing technique master at present
It to include ink jet type, volume formation type and laser sintered formula etc..Ink-jet 3D printing technique can by spray head by main material by setting
Fixed model sprays, and can also select different materials and different colorants in the same model according to setting, make one
Unlike material and color may be selected in model as needed.Ink-jet 3D printer is easy to operate, and selection is extensive, has obtained hair at full speed
Exhibition.Existing ink-jet 3D printer is all that material is ejected by printing head in the market, and material includes main material and fid
Material can according to need the colorant of the addition different colours in spray head material, the material of ejection if necessary to print color model
Material contains photoinitiator, and photoinitiator initiation reaction curing reaction under conditions of illumination, this curing reaction is just with building a house
Equally, accumulation is got up molding in layer, and backing material removed to obtain required model finally by post-processing, such as with
The 3D printer of Se Lie Objet company.This technological deficiency shows as deficiency of the ink dot because of printhead resolution ratio of every layer of accumulation
And will form line strip protrusion always, apparent recess is constantly present between lines and lines.Due to going for later period backing material
Except technique is cumbersome, this significantly impacts the working efficiency of 3D ink-jet printer.All material is all sprayed from spray head, since spray head sprays
The limitation in hole can only select the lesser main material of molecular weight, and which also limits the ranges of choice of main material.
Traditional laser curing technique uses laser emission sintering curing principle, i.e., is put into required all curing materials
In one supporting table or liquid bath, required shape is formed by curing by laser emission, but the mixture can only be single material,
Solid color, and since laser curing operating condition requires height, selection range is narrow.Since this technique is using laser spoke
Sintering curing principle is penetrated, causes the material properties such as model elasticity, hardness and the gloss that the ultraviolet light principle of solidification generates with initiator
Not good enough, these defects have greatly fettered the development of 3D printing technique.
In view of the deficienciess of the prior art, proposing the present invention.
Summary of the invention
The object of the present invention is to provide a kind of automatic equating color jet-ink 3D printing methods, and printable layer because beating in the liquid state
Print has automatic levelling to act on, and solves the problems, such as that product surface is uneven in the prior art, and because do not need backing material i.e.
It can form, greatly improve printing effect, blasting materials, which can according to need, when printing selects different material and difference
Color, realize the integrated colour print of various material, and another part moulding material needs not move through spray head, this just expands
The big range of choice of this part moulding material.
For achieving the above object, the technical scheme is that a kind of automatic equating color jet-ink 3D printing method,
The following steps are included:
Step (1), provides a kind of 3D printer, will include colorant, photoinitiator, the cured unsaturated monomer of ultraviolet light
Liquefied mixture be added 3D printer print cartridge in, as blasting materials；
Step (2), provides a kind of liquid bath, and the bottom in liquid bath is equipped with highly controllable supporting table, is added in liquid bath purple
The unsaturated monomer liquid of outer photocuring, as moulding material, the initial horizontal plane for setting supporting table plane and being lower than liquid bath liquid；
Required printer model is inputted in 3D printer and carries out setting of printing by step (3)；
Step (4) starts printer, the blasting materials in the step (1), by the spray head of 3D printer according to printing
The shape of setting is ejected into the supporting table of liquid bath, is mixed with the moulding material in supporting table in the step (2), in ultraviolet light
Irradiation under, the initiator that contains in blasting materials causes curing reaction and forms solid, and then supporting table passes through under Mechanical course
Drop makes the solid to be formed sink, and automatic levelling or power are bulldozed the liquid in liquid bath on solid again；
Step (5), the printing operation of the step (4) is repeated according to printer setup, finally obtains required model.
Further, step (1) deploys institute by the type of the cured unsaturated monomer of ultraviolet light in change blasting materials
The material of the blasting materials needed, and it is (red, yellow, green, black in the blasting materials of each material of allotment corresponding colorant to be added
Four kinds of primary colours), the blasting materials of required material and corresponding color are deployed into, the corresponding print cartridge of the 3D printer is then added to
In, by printer setup, realize that a model needs various material and multicolour integration to print.
Further, colorant is added in moulding material.
Further, blue colorant mill base: blue 15:3, indigo plant 15:4, indigo plant 15:6 etc.；Red stain: PV19, PR122
Deng；Yellow colorants: PY 151, PY 155, PY 180, PY 150；Black colorant: high-carbon black pigment.
Further, the blasting materials of step (1) viscosity at 25 DEG C is 10cp~50cp.
Further, the moulding material of step (2) viscosity at 25 DEG C is 10-200cp, is more advantageous to automatic levelling.
Further, photoinitiator are as follows: 1- hydroxy-cyclohexyl-phenyl ketone, 2- phenyl benzyl -2- dimethyl amine -1- (4-
Morpholine benzyl phenyl) butanone, bis- (2,4,6- trimethylbenzoyl)-one of phenylphosphine oxides and isopropyl thioxanthone or
A variety of mixtures.
Further, the cured unsaturated monomer of ultraviolet light are as follows: diacrylate -1,6- hexylene glycol ester, trimethylolpropane
Triacrylate, three polypropyleneglycol diacrylates, neopentylglycol diacrylate, pentaerythritol triacrylate, ethyoxyl
Change trimethylolpropane trimethacrylate, polyester acrylate resin, polyurethane acrylic resin, epoxy resin acrylic resin,
One of acrylic resin or a variety of mixtures.
Further, the colorant being added in step (1) blasting materials be changed to be added to the step (2) liquid bath at
In profile material.Photoinitiator are as follows: 1- hydroxy-cyclohexyl-phenyl ketone, 2- phenyl benzyl -2- dimethyl amine -1- (4- morpholine benzyl benzene
Base) butanone, one of bis- (2,4,6- trimethylbenzoyl)-phenylphosphine oxides or a variety of mixtures.Ultraviolet light solidification
Unsaturated monomer are as follows: diacrylate -1,6-HD ester, trimethylolpropane trimethacrylate, three polypropylene glycol dipropyl alkene
Acid esters, pentaerythritol triacrylate, ethoxylated trimethylolpropane triacrylate, gathers neopentylglycol diacrylate
Ester acrylic resin, one of polyurethane acrylic resin, epoxy resin acrylic resin, acrylic resin or a variety of mixed
Close object.Blasting materials viscosity at 25 DEG C is 10cp~50cp, and moulding material viscosity at 25 DEG C is that 10-200cp is more conducive to certainly
Dynamic levelling.
The beneficial effects of the present invention are:
(1) since the automatic levelling of liquid level acts on, the printing surface of printing is made to locate in one plane, to print always
Model appearance is neatly smooth, solves the problems, such as that product surface is uneven in the prior art,
(2) it can be formed because not needing backing material, avoid the later period to the removal step of backing material, greatly
Improve printing effect.
(3) since the moulding material in liquid bath is sprayed without spray head, limitation of the spray head due to spray orifice, moulding material are overcome
The lesser photo-curing material of molecular weight can only be selected, selection range is more extensive.
(4) it can realize that various material and multiple color integration are printed by deploying different blasting materials.
Specific embodiment
A kind of automatic equating color jet-ink 3D printing method, comprising the following steps:
Step (1), provides a kind of 3D printer, will include colorant, photoinitiator, the cured unsaturated monomer of ultraviolet light
Liquefied mixture be added 3D printer print cartridge in, as blasting materials；
Step (2), provides a kind of liquid bath, and the bottom in liquid bath is equipped with highly controllable supporting table, is added in liquid bath purple
The unsaturated monomer liquid of outer photocuring, as moulding material, the initial horizontal plane for setting supporting table plane and being lower than liquid bath liquid；
Required printer model is inputted in 3D printer and carries out setting of printing by step (3)；
Step (4) starts printer, the blasting materials in the step (1), by the spray head of 3D printer according to printing
The shape of setting is ejected into the supporting table of liquid bath, is mixed with the moulding material in supporting table in the step (2), in ultraviolet light
Irradiation under, the initiator that contains in blasting materials causes curing reaction and forms solid, and then supporting table passes through under Mechanical course
Drop makes the solid to be formed sink, and automatic levelling or power are bulldozed the liquid in liquid bath on solid again；
Step (5), the printing operation of the step (4) is repeated according to printer setup, finally obtains required model.
Wherein, blasting materials are the material that 3D printer spray head sprays, and the component of blasting materials by weight includes:
Photoinitiator 1-10
The cured unsaturated monomer 75-98 of ultraviolet light
Surfactant 0.1-1
Moulding material is for providing the material of liquid plane in liquid bath, and the component of moulding material by weight includes:
The cured unsaturated monomer 98-99.9 of ultraviolet light
Surfactant 0.1-2
Blasting materials further include colorant, and adding of colorants is not higher than 5 by weight.
By adjusting the proportion of each component in blasting materials and moulding material, make blasting materials viscosity at 25 DEG C
10-50cp, moulding material viscosity at 25 DEG C is 10-200cp.
Embodiment 1:
The following is a clear and complete description of the technical scheme in the embodiments of the invention.
A kind of blasting materials of the blue of the formula of the 3D ink-jet printing material of automatic equating include:
Colorant 2.9g:
Blue colorant (PENN COLOR 9S1494) 2.9g
Photoinitiator 7g:
The cured unsaturated monomer 84g of ultraviolet light:
With blue blasting materials, viscosity is 10cp at 25 DEG C, and surface tension is 20 dynes.A kind of 3D of automatic equating
The red blasting materials of the formula of ink-jet printing material include: colorant 6.7g:
Red stain (PENN COLOR 9R1519) 6.7g
Photoinitiator 1g:
1- hydroxy-cyclohexyl-phenyl ketone 1g
The cured unsaturated monomer 75g of ultraviolet light:
Neopentylglycol diacrylate 48g
Trimethylolpropane trimethacrylate 27g
Surfactant 0.2g:
BYK3500 0.2g
Above red blasting materials viscosity at 25 DEG C is 25cp, and surface tension is 30 dynes.
The above blasting materials the preparation method comprises the following steps:
The preparation of blue blasting materials: in the case where being protected from light, according to the above weight by photoinitiator and the cured insatiable hunger of ultraviolet light
It is added in the container with stirring with monomer, is uniformly mixed under stiring, then mixing speed slowly adds at 30 revs/min
For heat to 40 DEG C, heating time is 10 minutes, allows initiator sufficiently to dissolve and forms homogeneous mixture, then reduces the temperature to 20 DEG C
Left and right, low whipping speed are the blue colorant of the above weight to be slowly added in container, stir about 1 hour under 50 revs/min,
Then it is filtered with 1 micron of filter membrane to get blue blasting materials.
The preparation of red blasting materials: in the case where being protected from light, according to the above weight by photoinitiator and the cured insatiable hunger of ultraviolet light
It is added in the container with stirring with monomer, is uniformly mixed under stiring, then mixing speed slowly adds at 30 revs/min
For heat to 60 DEG C, heating time is 60 minutes, allows initiator sufficiently to dissolve and forms homogeneous mixture, then reduces the temperature to 30 DEG C
Left and right, low whipping speed are the red stain of the above weight to be slowly added in container, stir about 2 hours under 50 revs/min,
Then it is filtered with 1 micron of filter membrane to get blue blasting materials.
Moulding material includes:
The cured unsaturated monomer 98g of ultraviolet light:
Trimethylolpropane trimethacrylate 70g
Pentaerythritol triacrylate 12g
Epoxy resin acrylic resin 16g
Surfactant:
BYK3500 2g
Above moulding material viscosity at 25 DEG C is 10cp, and surface-active is 20 dynes.
The above moulding material the preparation method comprises the following steps:
The cured unsaturated monomer of ultraviolet light and surfactant of the above weight are added in a container with stirring,
Then it stirs 20 minutes at normal temperature, it is allowed to stir to obtain the final product, mixing speed is 30 revs/min.
Blue blasting materials and red blasting materials are separately added into the print cartridge 1 and print cartridge 2 of 3D printer, by forming material
Material is added in a liquid bath, and the bottom in liquid bath is equipped with the supporting table that adjustable height can be controlled by screw rod, forming material
The liquid level of material is higher than the height of one layer of supporting table printing accumulation.
The model for needing to print by computer software CAD creation, is then input in 3D printer, carries out printing and sets
It sets.
Start printer after setting completed, by spray head by unsaturated monomer and table comprising photoinitiator, ultra-violet curing
The blasting materials of face activating agent are ejected on the liquid level of supporting table according to the shape of setting of printing, spray head spray blasting materials with
After moulding material mixing in liquid bath, under the action of photoinitiator, reaction is cured by the irradiation of ultraviolet light and is formed admittedly
Body, then supporting table sinks down into the solid to be formed under liquid level by screw rod control decline, and the height declined every time can be set
For the height for printing accumulation every time, the then automatic levelling on solid of the liquid in liquid bath, re-form one it is very smooth
Or acceptable liquid levels layer, be repeated in above-mentioned printing operation, include blue and red two kinds of colors two needed for finally obtaining
The model of kind material.The mixture for not contacting photoinitiator in liquid bath will not be cured reaction, remain liquid condition.
Embodiment 2:
A kind of blasting materials of the formula of the 3D ink-jet printing material of automatic equating include:
Photoinitiator 5.5g:
1- hydroxy-cyclohexyl-phenyl ketone 1g
Isopropyl thioxanthone 2.5g
Bis- (2,4,6- trimethylbenzoyl)-phenylphosphine oxide 2g
The cured unsaturated monomer 81.5g of ultraviolet light:
2- phenyl benzyl -2- dimethyl amine -1- (4- morpholine benzyl phenyl) butanone 1.5g
Neopentylglycol diacrylate 48g
Trimethylolpropane trimethacrylate 32g
Surfactant 1g:
BYK3500 1g
Above blasting materials viscosity at 25 DEG C is 25cp, and surface tension is 50 dynes.
The above blasting materials the preparation method comprises the following steps:
In the case where being protected from light, photoinitiator, the cured unsaturated monomer of ultraviolet light and surfactant are added according to the above weight
Entering into a container with stirring, is uniformly mixed under stiring, mixing speed is then slowly heated to 50 DEG C at 30 revs/min,
Heating time is 30 minutes, allows initiator sufficiently to dissolve and forms homogeneous mixture, then reduces the temperature to 30 DEG C or so, then
With 1 micron of filter membrane be filtered to get.
Moulding material includes:
The cured unsaturated monomer 99g of ultraviolet light:
Diacrylate -1,6-HD ester 70g
Neopentylglycol diacrylate 25g
Polyester acrylate resin 4g
Surfactant 1g:
BYK3500 1g
Above moulding material viscosity at 25 DEG C is 100cp, and surface-active is 35 dynes.
The above moulding material the preparation method comprises the following steps:
The cured unsaturated monomer of ultraviolet light and surfactant of the above weight are added in a container with stirring,
Then it stirs 60 minutes at normal temperature, it is allowed to stir to obtain the final product, mixing speed is 30 revs/min.
Blasting materials are added in the print cartridge of 3D printer, moulding material is added in a liquid bath, the bottom in liquid bath
The supporting table of adjustable height can be controlled by screw rod equipped with one, the liquid level of moulding material is higher than one layer of printing accumulation of supporting table
Height.
The model for needing to print by computer software CAD creation, is then input in 3D printer, carries out printing and sets
It sets.
Start printer after setting completed, by spray head by unsaturated monomer and table comprising photoinitiator and ultra-violet curing
The mixture of face activating agent is ejected on the liquid level of supporting table according to the shape of setting of printing, the blasting materials and liquid that spray head sprays
After moulding material mixing in slot, under the action of photoinitiator, reaction is cured by the irradiation of ultraviolet light and forms solid,
Then supporting table sinks down into the solid to be formed under liquid level by screw rod control decline, and the height declined every time can be set as often
The height of secondary printing accumulation, the then automatic levelling on solid of the liquid in liquid bath, re-form one it is very smooth or
Acceptable liquid levels layer is repeated in above-mentioned printing operation, finally obtains required model.Photoinitiator is not contacted in liquid bath
Mixture will not be cured reaction, remain liquid condition.
Embodiment 3:
A kind of blasting materials of the blue of the formula of the 3D ink-jet printing material of automatic equating include:
Colorant 11.1g:
Black colorant (PENN COLOR 9B989) 11.1g
Photoinitiator 7g:
The cured unsaturated monomer 88g of ultraviolet light:
Pentaerythritol triacrylate 28g
Neopentylglycol diacrylate 60g
Surfactant 1g:
BYK3500 0.1g
Above blasting materials viscosity at 25 DEG C is 50cp, and surface tension is 50 dynes.
The above blasting materials the preparation method comprises the following steps:
The preparation of black blasting materials: in the case where being protected from light, according to the above weight by photoinitiator, the cured unsaturation of ultraviolet light
Monomer and surfactant be added to one with stirring container in, be uniformly mixed under stiring, mixing speed at 30 revs/min,
60 DEG C are then slowly heated to, heating time is 10 minutes, allows initiator sufficiently to dissolve and forms homogeneous mixture, then will be warm
Degree drops to 30 DEG C or so, and low whipping speed is that the black colorant of the above weight is slowly added in container, is stirred under 50 revs/min
It mixes about 0.5 hour, is then filtered with 1 micron of filter membrane to get black blasting materials.
Moulding material includes:
The cured unsaturated monomer 99.9g of ultraviolet light:
Neopentylglycol diacrylate 22g
Trimethylolpropane trimethacrylate 28g
Epoxy resin acrylic resin 49.9g
Surfactant 2g:
BYK3500 0.1g
BYK3510 0.1g
Above moulding material viscosity at 25 DEG C is 200cp, and surface-active is 40 dynes.
The above moulding material the preparation method comprises the following steps:
The cured unsaturated monomer of ultraviolet light and surfactant of the above weight are added in a container with stirring,
Then it stirs 50 minutes at normal temperature, it is allowed to stir to obtain the final product, mixing speed is 20 revs/min.
Black blasting materials are added in the print cartridge of 3D printer, moulding material are added in a liquid bath, in liquid bath
Bottom is equipped with the supporting table that adjustable height can be controlled by screw rod, and the liquid level of moulding material is higher than one layer of supporting table printing
The height of accumulation.
The model for needing to print by computer software CAD creation, is then input in 3D printer, carries out printing and sets
It sets.
Start printer after setting completed, by spray head by the liquid mixture comprising photoinitiator and ultra-violet curing according to
The shape of setting of printing is ejected on the liquid level of supporting table, and the blasting materials that spray head sprays are mixed with the moulding material in liquid bath
Afterwards, under the action of photoinitiator, reaction is cured by the irradiation of ultraviolet light and forms solid, then supporting table passes through screw rod
Control decline sinks down into the solid to be formed under liquid level, and the height declined every time can be set as the height for printing accumulation every time,
Then the automatic levelling on solid of the liquid in liquid bath re-forms a very smooth or acceptable liquid levels layer, according to
The secondary above-mentioned printing operation of repetition, finally obtains required black model.The mixture for not contacting photoinitiator in liquid bath will not
It is cured reaction, remains liquid condition.
Embodiment 4:
A kind of blasting materials of the formula of the 3D ink-jet printing material of automatic equating include:
Photoinitiator 10g:
1- hydroxy-cyclohexyl-phenyl ketone 5.5g
Isopropyl thioxanthone 2.5g
Bis- (2,4,6- trimethylbenzoyl)-phenylphosphine oxide 2g
The cured unsaturated monomer 98g of ultraviolet light:
2- phenyl benzyl -2- dimethyl amine -1- (4- morpholine benzyl phenyl) butanone 18g
Neopentylglycol diacrylate 48g
Trimethylolpropane trimethacrylate 32g
Surfactant 1g:
BYK3500 1g
Above blasting materials viscosity at 25 DEG C is 35cp, and surface tension is 38 dynes.
The above blasting materials the preparation method comprises the following steps:
In the case where being protected from light, photoinitiator, the cured unsaturated monomer of ultraviolet light and surfactant are added according to the above weight
Entering into a container with stirring, is uniformly mixed under stiring, mixing speed is then slowly heated to 50 DEG C at 30 revs/min,
Heating time is 30 minutes, allows initiator sufficiently to dissolve and forms homogeneous mixture, then reduces the temperature to 30 DEG C or so, then
With 1 micron of filter membrane be filtered to get.
Moulding material includes:
The cured unsaturated monomer 99.9g of ultraviolet light:
Diacrylate -1,6-HD ester 70g
Neopentylglycol diacrylate 23g
Polyester acrylate resin 6.9g
Surfactant 1g:
BYK3500 2g
Above moulding material viscosity at 25 DEG C is 180cp, and surface-active is 35 dynes.
The above moulding material the preparation method comprises the following steps:
The cured unsaturated monomer of ultraviolet light and surfactant of the above weight are added in a container with stirring,
Then it stirs 60 minutes at normal temperature, it is allowed to stir to obtain the final product, mixing speed is 30 revs/min.
Blasting materials are added in the print cartridge of 3D printer, moulding material is added in a liquid bath, the bottom in liquid bath
The supporting table of adjustable height can be controlled by screw rod equipped with one, the liquid level of moulding material is higher than one layer of printing accumulation of supporting table
Height.
The model for needing to print by computer software CAD creation, is then input in 3D printer, carries out printing and sets
It sets.
Start printer after setting completed, by spray head by unsaturated monomer and table comprising photoinitiator and ultra-violet curing
The mixture of face activating agent is ejected on the liquid level of supporting table according to the shape of setting of printing, the blasting materials and liquid that spray head sprays
After moulding material mixing in slot, under the action of photoinitiator, reaction is cured by the irradiation of ultraviolet light and forms solid,
Then supporting table sinks down into the solid to be formed under liquid level by screw rod control decline, and the height declined every time can be set as often
The height of secondary printing accumulation, the then automatic levelling on solid of the liquid in liquid bath, re-form one it is very smooth or
Acceptable liquid levels layer is repeated in above-mentioned printing operation, finally obtains required model.Photoinitiator is not contacted in liquid bath
Mixture will not be cured reaction, remain liquid condition.
It is 10cp~50cp, liquid bath that the mixture that spray head ejects controls viscosity by adjusting proportion generally at 25 DEG C
In mixture by adjusting proportion generally at 25 DEG C control viscosity be 10~200cp.
The optional 1- hydroxy-cyclohexyl-phenyl ketone of photoinitiator, 2- phenyl benzyl -2- dimethyl amine -1- (4- morpholine benzyl benzene
Base) butanone, one of bis- (2,4,6- trimethylbenzoyl)-phenylphosphine oxides or a variety of mixtures.
The cured unsaturated monomer liquid of ultraviolet light is diacrylate -1,6-HD ester, trimethylolpropane tris propylene
Acid esters, three polypropyleneglycol diacrylates, neopentylglycol diacrylate, pentaerythritol triacrylate, three hydroxyl of ethoxylation
Propane tri, polyester acrylate resin, polyurethane acrylic resin, epoxy resin acrylic resin, acrylic acid
One of resin or a variety of mixtures.
Exhaustive, all photoinitiators that can be used as 3D printing are not belonging to photoinitiator and photo-curing material
And the photo-curing material of liquid both falls within protection scope of the present invention.
It is all to print in the liquid state due to printing every time, liquid level levelling or power-assisted can be bulldozed automatically, make to print every time
All in one plane, the product surface obtained is smooth, and precision is higher, and it is uneven to solve product surface in the prior art
Problem；Because not needing backing material can form, the later period is avoided to the removal step of backing material, is greatly improved
Printing effect；And because part moulding material needs not move through spray head injection, is not limited by spray orifice, expand selection model
It encloses.
Claims (5)
1. a kind of automatic equating color jet-ink 3D printing method, which comprises the following steps:
Step (1), provides a kind of 3D printer, by comprising colorant, photoinitiator, the cured unsaturated monomer of ultraviolet light liquid
State mixture is added in the print cartridge of 3D printer, as blasting materials；
Step (2), provides a kind of liquid bath, and the bottom in liquid bath is equipped with highly controllable supporting table, and ultraviolet light is added in liquid bath
Cured unsaturated monomer liquid, as moulding material, the initial horizontal plane for setting supporting table plane and being lower than liquid bath liquid；
Required printer model is inputted in 3D printer and carries out setting of printing by step (3)；
Step (4) starts printer, the blasting materials in the step (1), by the spray head of 3D printer according to setting of printing
Shape be ejected into the supporting table of liquid bath, mixed with the moulding material in supporting table in the step (2), in the photograph of ultraviolet light
It penetrates down, the initiator contained in blasting materials causes curing reaction and forms solid, and then supporting table is made by Mechanical course decline
The solid of formation sinks, and automatic levelling or power are bulldozed the liquid in liquid bath on solid again；
Step (5), the printing operation of the step (4) is repeated according to printer setup, finally obtains required model；
Wherein, the blasting materials of the step (1) viscosity at 25 DEG C is 10cp~50cp；The moulding material of the step (2)
Viscosity is 10-200cp at 25 DEG C.
2. a kind of automatic equating color jet-ink 3D printing method according to claim 1, which is characterized in that the step
(1), the type for changing the cured unsaturated monomer of ultraviolet light in blasting materials, deploys the material of required blasting materials, and
The colorant of corresponding color is added in each material of allotment, is deployed into the blasting materials of required material and corresponding color, then
It is added in the corresponding print cartridge of the 3D printer, is then beaten by the colour that printer setup carries out controllable material controllable color
Print.
3. a kind of automatic equating color jet-ink 3D printing method according to claim 1, which is characterized in that described light-initiated
Agent are as follows: 1- hydroxy-cyclohexyl-phenyl ketone, 2- phenyl benzyl -2- dimethyl amine -1- (4- morpholine benzyl phenyl) butanone, bis- (2,4,
6- trimethylbenzoyl)-one of phenylphosphine oxide and isopropyl thioxanthone or a variety of mixtures.
4. a kind of automatic equating color jet-ink 3D printing method according to claim 1, which is characterized in that the ultraviolet light
Cured unsaturated monomer are as follows: diacrylate -1,6-HD ester, trimethylolpropane trimethacrylate, three polypropylene glycols two
Acrylate, neopentylglycol diacrylate, pentaerythritol triacrylate, three acrylic acid of ethoxylated trimethylolpropane
Ester, polyester acrylate resin, one of polyurethane acrylic resin, epoxy resin acrylic resin, acrylic resin or more
The mixture of kind.
5. a kind of automatic equating color jet-ink 3D printing method according to claim 1, which is characterized in that by the step
(1) colorant being added in blasting materials is changed in the moulding material for being added to the step (2) liquid bath.
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| CN100434261C (en) * | 2005-12-09 | 2008-11-19 | 西安交通大学 | Recoating device for photocurable quick shaping process |
| CN2900196Y (en) * | 2006-05-31 | 2007-05-16 | 南京师范大学 | Color three dimension object forming device based on UV light hardening process |
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