CN104553422B - 3D color surface ink-jet printing method - Google Patents
3D color surface ink-jet printing method Download PDFInfo
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- CN104553422B CN104553422B CN201310473933.8A CN201310473933A CN104553422B CN 104553422 B CN104553422 B CN 104553422B CN 201310473933 A CN201310473933 A CN 201310473933A CN 104553422 B CN104553422 B CN 104553422B
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Abstract
The invention discloses a 3D color surface ink-jet printing method used for 3D object color ink-jet printing. The method comprises the following steps: a 3D model RGB original image is generated from a 3D object; according to surface shape matching between spray-heads and the 3D model, the 3D model RGB original image is divided into a conventional surface and a complex surface, and a 3D CMYK four-color ink-jet control file is generated after digital prepress processing; and a conventional spray-head and a capillary spray-head are adopted to respectively carry out CMYK four-color ink-jet printing, drying and curing of both the conventional surface and the complex surface, and a printing stock synchronously carries out non-plane motion so as to realize color surface ink-jet printing. As the spray-heads remain still during the ink-jet process, interference of motions of the spray-heads with the ink-jet process is avoided and ink-jet printing precision is raised; the capillary spray-head can realize ink-jet printing of a complex surface with large ratio of pit-depth to pit-diameter, millimeter-scale micro size, variable curvature, concave surface and the like; and the conventional spray-head has multiple pores for ink-jet, so as to effectively raise ink-jet printing speed, enhance surface ink-jet printing efficiency and obtain high color 3D surface ink-jet printing quality.
Description
Technical field
The present invention relates to ink-jet printing field, in particular to a kind of color three dimension curved surface ink jet printing method.
Background technology
Traditional printing methods, by squeegee pressure ink printing figure message, such as offset printing, gravure, convex print planographic are shifted
Method, it is difficult to directly print the object with three-dimension curved surface.Have that efficiency is low, cost of labor is high etc. using artificial method for drafting to lack
Point.Need to prepare printing plate using the method for transfer, it is impossible to realize variable graphic data printing.Ink jet printing is with its noncontact, nothing
The feature of squeegee pressure provides possibility for three-dimensional body printing.
European patent EP 1918113A2 and Chinese patent CN101259800A propose a kind of 3 D-printing method：Shower nozzle
Move along Y direction, sports platform is moved along X-axis with Z axis, and rotate along A axles and B axle.Shower nozzle routing motion platform is same in the method
Shi Yundong, realizes object dimensional inkjet printing.Chinese patent CN102173211A proposes a kind of five-axis linkage three-dimensional
Method of printing, shower nozzle can do plane motion in X-direction and Y-direction, and sports platform is for linear motion in Z-direction, and can along Z axis and
Its normal direction rotation.《Three-dimensional spray-painting robot ink-jet study mechanism》(Chen Xinwei, Nankai University, Master's thesis, 2009.) carry
The three-dimensional spray-painting robot for going out, shower nozzle is moved in X direction with Z-direction, and motion platform is moved along Y-axis realizes that three-dimensional map air brushing is imitated
Really.More than in several three dimensional ink jet Method of printings, shower nozzle ink-jet in linear motion can cause ink droplet in forming process
By the interference of the factors such as inertia force, impact, cause droplet size, ink droplet positioning that randomness change occurs, ultimately cause picture and text essence
Spend not high, misalignment, the not high phenomenon of print speed.Routine business jet size is in Centimeter Level, it is difficult to which printing has big deep
Situations such as footpath ratio, grade small size, variable curvature, concave surface it is complex-curved；In addition small size shower nozzle ink ejection amount is few, carries out big face
Efficiency is too low during product curved surface ink jet printing, it is difficult to practical application.Therefore, there is printing matter in existing three-dimensional body inkjet printing methods
Amount is not high, be difficult to the low problem of the complex-curved, print speed printing speed of printing.
The content of the invention
The present invention provides a kind of color three dimension curved surface ink jet printing method, to the speed and matter that improve three-dimensional ink-jet printing
Amount, realizes three-dimensional body colour curved surface ink jet printing.
To reach above-mentioned purpose, the invention provides a kind of color three dimension curved surface ink jet printing method, comprises the following steps：
Step 1, three-dimensional body is through passing through 3 d object scanning, tri-dimensional photographing, software moulding modeling or data processing side
Method generates the threedimensional model RGB image original copy of three-dimensional body；
Step 2, matches according to nozzle type with threedimensional model surface configuration, using three-dimensional image segmentation algorithm by described three
Dimension module RGB image original copy is divided into conventional curved surface original copy model and the complexity suitable for capillary shower nozzle suitable for conventional injection head
Curved surface original copy model；
Step 3, is carried out at digital prepress respectively to the conventional curved surface original copy model and the complex-curved original copy model
Reason：The conventional curved surface original copy model and the complex-curved original copy model are divided respectively using three-dimensional color space transfer algorithm
Color is corresponding three-dimensional CMYK monochromatic models；Conventional curved surface and complex-curved corresponding three-dimensional CMYK monochromatic models are carried out respectively
Halftone process generates corresponding three-dimensional monochromatic plus pessimistic concurrency control；Respectively path planning is carried out to three-dimensional monochromatic plus pessimistic concurrency control, generated
Surface Shape of 3-D Object movement locus；According to shower nozzle type of drive and stock movement locus, generate each described three-dimensional monochrome and add
The corresponding single-colour ink-jetting control data of pessimistic concurrency control；
Step 4, judges whether the CMYK tetra- for completing the conventional curved surface original copy model and the complex-curved original copy model
Color ink-jet control data, if it is, generating the color ink-jet control files of three-dimensional CMYK tetra-, and is inputted three-dimension curved surface ink-jet print
In brush equipment, execution step 5 carries out the color ink jet printings of CMYK tetra- of the conventional curved surface；Otherwise, execution step 3；
Step 5, is moved to shower nozzle after ink jetting position static by corresponding conventional monochrome printhead；Three-dimensional body is fixed on and is held
On ink pad, and bearing ink pad is back to into initial position, back to zero positioning；
Step 6, single-colour ink-jetting passage is opened, adjustment bearing ink pad position so that conventional monochrome printhead is in three-dimensional article body surface
The Register Mark of face spray printing is overlapped, mark single-colour ink-jetting printing initial position；
Step 7, according to single-colour ink-jetting initial position is printed, and conventional monochrome printhead sprays under three dimensional ink jet control document control
Penetrate ink droplet；Ink is dropped in after three-dimensional object surface and is dried, solidifies；At the same time, according to corresponding three-dimensional body motion control number
According to, control three-dimensional body makees non-plane motion, and through X-axis, Y-axis, Z axis, A to B to position feedback control, it is ensured that space curved surface
Precision, wherein, to rotate about the z axis, B is to for the rotation of normal about the z axis for A；
Step 8, the single-colour ink-jetting printing process for treating conventional curved surface is completed, by corresponding single-colour ink-jetting pathway closure；
Whether step 9, the color inkjet printing process of CMYK tetra- for judging the conventional curved surface is fully completed, if it is, holding
Row step 10, carries out the complex-curved color ink jet printings of CMYK tetra-；Otherwise, 5-step 8 of execution step, carries out next face
The conventional curved surface ink jet printing of color；
Step 10, moves to shower nozzle after ink jetting position static by corresponding capillary monochrome printhead；Bearing ink pad is back to initially
Position, back to zero positioning；
Step 11, single-colour ink-jetting passage is opened, adjustment bearing ink pad position so that capillary monochrome printhead is in three-dimensional article body surface
The Register Mark of face spray printing is overlapped, mark single-colour ink-jetting printing initial position；
Step 12, according to single-colour ink-jetting initial position is printed, and capillary monochrome printhead controls file control in three-dimensional single-colour ink-jetting
The lower ink-jet of system, and be synchronously dried, solidify the ink droplet for being dropped in three-dimensional object surface；At the same time, according to corresponding three-dimensional body
Motion control data, control three-dimensional body makees non-plane motion, and through X-axis, Y-axis, Z axis, A to B to position feedback control, really
Protect space curved surface precision；
Step 13, treats that complex-curved single-colour ink-jetting printing process is completed, by corresponding single-colour ink-jetting pathway closure；
Step 14, judges whether the complex-curved color inkjet printing process of CMYK tetra- is fully completed, if it is, performing
Step 15；Otherwise, 10-step 13 of execution step, carries out the complex-curved ink jet printing of next color；
Whole shower nozzle motion recoveries are back to zero-bit by step 15, close ink discharge device, close drying device, close solidification
Device, bearing ink pad back to zero position completes color three dimension curved surface ink jet printing, and method flow terminates.
Optionally, color three dimension curved surface ink jet printing is by color ink jet printings of conventional curved surface CMYK tetra- and complex-curved
The color ink jet printings of CMYK tetra- are constituted；The conventional curved surface is size in Centimeter Level or more, and Curvature varying, aspect ratio are respectively smaller than
Correspondence setting value, is suitable for the curved surface of conventional injection head printing；It is described it is complex-curved be size in millimeter to Centimeter Level, curvature becomes
Change, aspect ratio is respectively greater than correspondence setting value, is suitable for the curved surface of capillary shower nozzle printing；The conventional injection head be size centimetre
Level, the shower nozzle with multiple spray orifices；The capillary shower nozzle is that length is in millimeter to Centimeter Level, sectional dimension with slim-lined construction
In micron to grade, with one or more spray orifices, and injection diameter is micron-sized shower nozzle.
Optionally, the threedimensional model RGB image original copy is the threedimensional model coloured image original based on RGB color optical mode
Original text, is obtained by 3 d object scanning, tri-dimensional photographing, software moulding modeling or data processing.
Optionally, the three-dimensional image segmentation algorithm is to carry out computing using three-dimensional space data, by the threedimensional model
RGB image original copy is divided into some conventional curved surfaces and complex-curved algorithm；The three-dimensional color space transfer algorithm is employing
Three-dimensional space data carries out computing, and the 3-D view original copy that RGB color is represented is transformed into CMYK color space representation
Method.
Optionally, the color ink-jets of the three-dimensional CMYK tetra- control file includes that shower nozzle ink-jet control data and three-dimensional body are moved
Control data, is respectively used to control shower nozzle ink jet process and Surface Shape of 3-D Object motion process, the shower nozzle ink jet process and institute
State Surface Shape of 3-D Object motion process synchronization.
Optionally, the material of the three-dimensional body is paper, timber, ceramics, gypsum, rubber, resin, plastics, glass, stone
The combination of one or more material in English, copper, copper alloy, aluminium, aluminium alloy, steel, iron, gold, silver.
Optionally, the material of the ink droplet is any one in aqueous ink, UV ink, solvent based ink, ink；The ink droplet
Diameter range is micron order to millimeter, can be size identical frequency modulation ink droplet or amplitude modulation ink droplet of different sizes.The ink-jet
Method is drop on demand ink jet or continuous inkjet.
Optionally, the shower nozzle is static for shower nozzle, do not move in ink jet process by remains stationary；The three-dimensional body composition
Face motion is in ink jet process, three-dimensional body is fixed on bearing ink pad, does the non-plane motion with five freedoms of motion；It is described
Non-plane motion is moved along a straight line respectively by X, Y, Z axis, and A to (rotating around Z) and B constitute to (normal rotation about the z axis) motion, wherein,
This five motion individually motion, part linkage or all linkages.
Optionally, the drying shines drying for natural drying, wind drying, heat drying or infrared light.
Optionally, it is described to be cured as UV illumination curings, natural photocuring, be heating and curing or infrared illumination curing.
In the above-described embodiments, matched with threedimensional model surface configuration according to nozzle type, threedimensional model RGB image is former
Original text is divided into conventional curved surface and the complex-curved conventional injection head and capillary shower nozzle of being respectively adopted to carry out the color ink jet printings of CMYK tetra-.Shower nozzle
(including conventional injection head and capillary shower nozzle) remains stationary in ink jet process, it is to avoid shower nozzle motion causes to do ink jet process
Disturb, improve ink jet printing precision；Stock is fixed on the bearing ink pad of 5 frees degree and does synchronous non-plane motion, realizes
Flexography；The complex-curved ink-jet print such as big aspect ratio, grade small size, variable curvature, concave surface is capable of achieving using capillary shower nozzle
Brush；Conventional injection head porous ink jet, can effectively improve ink jet printing speed, improve flexography efficiency, can obtain high colour three
Dimension curved surface Ink-jet Printing Quality.
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the color three dimension curved surface ink jet printing method flow chart of one embodiment of the invention；
Fig. 2 is many nozzle structure schematic diagrames formed according to Fig. 1 embodiments；
Fig. 3 is for fixing the bearing ink pad non-plane motion schematic diagram of three-dimensional body in Fig. 1 embodiments.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than the embodiment of whole.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not paid
Embodiment, belongs to the scope of protection of the invention.
Fig. 1 is the color three dimension curved surface ink jet printing method flow chart of one embodiment of the invention；As illustrated, the method
Comprise the following steps：
Step 1, three-dimensional body is given birth to through 3 d object scanning, tri-dimensional photographing, software moulding modeling or data processing method
Into the threedimensional model RGB image original copy for obtaining three-dimensional body；
Wherein, the ink jet printing of color three dimension curved surface is by the color ink jet printings of conventional curved surface CMYK tetra- and the colors of complex-curved CMYK tetra-
Ink jet printing is constituted；Threedimensional model RGB image original copy is referred to based on the threedimensional model coloured image original copy of RGB color optical mode.
Step 2, matches according to nozzle type with threedimensional model surface configuration, and threedimensional model RGB image original copy is divided into
Conventional curved surface original copy model and the complex-curved original copy model suitable for capillary shower nozzle suitable for conventional injection head；
Wherein, conventional curved surface is size in Centimeter Level or more, and Curvature varying is little, aspect ratio is little, is suitable for conventional injection head
The curved surface of printing；Complex-curved is size in millimeter to Centimeter Level, and Curvature varying is big, aspect ratio is big, is suitable for capillary shower nozzle print
The curved surface of brush.
Fig. 2 is many nozzle structure schematic diagrames formed according to Fig. 1 embodiments；Shower nozzle is by conventional CMYK monochrome printheads and capillary
Monochromatic CMYK shower nozzles composition.Conventional injection head is size in Centimeter Level, the shower nozzle with multiple spray orifices；Capillary shower nozzle is with elongated
Structure, length in millimeter to Centimeter Level, sectional dimension in micron to grade, with one or more spray orifices, and injection diameter
For micron-sized shower nozzle.Wherein, capillary shower nozzle can adopt piezoelectric vibration, heat foamable, ultrasonic vibration, magnetostriction or magnetic valve control
Mode processed drives.The material of capillary shower nozzle can be glass, quartz, silicon, carbon, copper, aluminium alloy, stainless steel, ceramics, plastics, and prolong
Extend various nonmetallic materials or metal material.
Step 3, carries out digital prepress process to conventional curved surface original copy model and complex-curved original copy model respectively：Using three
Conventional curved surface original copy model and the difference color separation of complex-curved original copy model are corresponding three-dimensional by dimension color space transfer algorithm
CMYK monochromatic models；Respectively halftone process generation is carried out to conventional curved surface and complex-curved corresponding three-dimensional CMYK monochromatic models
Corresponding three-dimensional monochromatic plus pessimistic concurrency control；Respectively path planning is carried out to three-dimensional monochromatic plus pessimistic concurrency control, generate Surface Shape of 3-D Object fortune
Dynamic rail mark；According to shower nozzle type of drive and the movement locus of stock, each three-dimensional monochromatic plus corresponding monochrome of pessimistic concurrency control is generated
Ink-jet control data；
Wherein, three-dimensional CMYK monochromatic models are respectively tetra- kinds of colors of C, M, Y and K.
Step 4, judges whether to complete conventional curved surface and the complex-curved color ink-jet control datas of CMYK tetra-, if it is,
The color ink-jet control files of three-dimensional CMYK tetra- are generated, and is inputted in three-dimension curved surface ink-jet printing apparatus, execution step 5 is carried out
The color ink jet printings of CMYK tetra- of conventional curved surface；Otherwise, execution step 3；
Wherein, the color ink-jets of three-dimensional CMYK tetra- control file includes shower nozzle ink-jet control data and three-dimensional body motion control number
According to being respectively used to control shower nozzle ink jet process and Surface Shape of 3-D Object motion process, shower nozzle ink jet process and Surface Shape of 3-D Object
Motion process synchronization.
Step 5, corresponding routine monochrome printhead is moved to shower nozzle after ink jetting position, and static (all shower nozzles are in ink jet process
Remains stationary is not moved)；Three-dimensional body is fixed on bearing ink pad, back to zero positioning；
Wherein, the material of three-dimensional body is paper, timber, ceramics, gypsum, rubber, resin, plastics, glass, quartz, copper, copper
The combination of one or more material in alloy, aluminium, aluminium alloy, steel, iron, gold, silver glass, copper, stainless steel, gold, silver, and extend to
Various nonmetallic or metal solid material.
Fig. 3 is for fixing the bearing ink pad non-plane motion schematic diagram of three-dimensional body in Fig. 1 embodiments.As illustrated, this holds
Ink pad has 5 freedoms of motion, can be for linear motion along X-axis, Y-axis, Z-direction, and can be around A to rotation and B to direction
, to for Z-direction, B is to for perpendicular to the normal direction of Z axis for rotary motion, wherein A.This five motions can be transported individually
Dynamic, part linkage and all linkages.
Step 6, single-colour ink-jetting passage is opened, adjustment bearing ink pad position so that conventional monochrome printhead is in three-dimensional object surface
The Register Mark of spray printing is overlapped, and indicates single-colour ink-jetting initial position；
Step 7, according to ink jet printing initial position, conventional monochrome printhead sprays under three-dimensional single-colour ink-jetting control document control
Penetrate ink droplet；Ink is dropped in after three-dimensional object surface and is dried, solidifies；At the same time, according to corresponding three-dimensional body motion control number
According to, control three-dimensional body makees non-plane motion, and through X-axis, Y-axis, Z axis, A to B to position feedback control, it is ensured that space curved surface
Precision, wherein, to rotate about the z axis, B is to for the rotation of normal about the z axis for A；
Wherein, the material of ink droplet is any one in aqueous ink, UV ink, solvent based ink, ink, and extends to various liquid
Material and the material for becoming liquid；The diameter range of ink droplet is micron order to millimeter, is size identical frequency modulation ink droplet or big
Little different amplitude modulation ink droplet.
Step 8, the single-colour ink-jetting printing process for treating conventional curved surface is completed, by corresponding single-colour ink-jetting pathway closure；
Whether step 9, the color inkjet printing process of CMYK tetra- for judging conventional curved surface is fully completed, if it is, performing step
Rapid 10, carry out the complex-curved color ink jet printings of CMYK tetra-；Otherwise, 5-step 8 of execution step, carries out the routine of next color
Curved surface ink jet printing；
Step 10, corresponding capillary monochrome printhead is moved to into shower nozzle after ink jetting position, and static (all shower nozzles are in ink-jet
Remains stationary is not moved in journey)；By bearing ink pad back to zero positioning；
Step 11, single-colour ink-jetting passage is opened, adjustment bearing ink pad position so that capillary monochrome printhead is in three-dimensional article body surface
The Register Mark of face spray printing is overlapped, mark single-colour ink-jetting printing initial position；
Step 12, according to ink jet printing initial position, capillary monochrome printhead is under three-dimensional single-colour ink-jetting control document control
Ink-jet, and be synchronously dried, solidify the ink droplet for being dropped in three-dimensional object surface；At the same time, according to corresponding ink ejection data, control
Three-dimensional body makees non-plane motion, and through X-axis, Y-axis, Z axis, A to B to position feedback control, it is ensured that space curved surface precision；
Wherein, the material of ink droplet can be any one in aqueous ink, UV ink, solvent based ink, ink, and extend to various
Liquid material and the material for becoming liquid；The diameter range of ink droplet is micron order to millimeter, is size identical frequency modulation ink droplet
Or amplitude modulation ink droplet of different sizes.
Above-mentioned drying can shine drying for natural drying, wind drying, heat drying or infrared light, and extend to various sides
Method is dried；Solidification can be UV illumination curings, natural photocuring, be heating and curing or infrared illumination curing, and extend to various methods
Solidification.
Step 13, treats that complex-curved single-colour ink-jetting printing process is completed, by corresponding single-colour ink-jetting pathway closure；
Step 14, judges whether the complex-curved color inkjet printing process of CMYK tetra- is fully completed, if it is, execution step
15；Otherwise, 10-step 13 of execution step, carries out the complex-curved ink jet printing of next color；
Step 15, the motion of whole shower nozzles is restored to initial position, closes ink discharge device, is closed and is dried and solidification equipment,
Bearing ink pad is resetted, color three dimension curved surface ink jet printing is completed.
In the above-described embodiments, matched with threedimensional model surface configuration according to nozzle type, threedimensional model RGB image is former
Original text is divided into conventional curved surface and complex-curved, the color ink-jet control files of generation three-dimensional CMYK tetra- after digital prepress process, point
The color ink jet printings of CMYK tetra-, drying and solidification are not carried out using conventional injection head and capillary shower nozzle.Shower nozzle is (including conventional injection head and hair
Thin shower nozzle) remains stationary in ink jet process, it is to avoid shower nozzle motion causes the interference to ink jet process, improves ink jet printing
Precision；Three-dimensional body is fixed on the bearing ink pad of 5 freedoms of motion and does synchronous non-plane motion, realizes flexography；Adopt
The complex-curved printings such as big aspect ratio, grade small size, variable curvature, concave surface are capable of achieving with capillary shower nozzle；Conventional injection head porous
Ink-jet, can effectively improve ink jet printing speed, improve conventional flexography efficiency, can obtain high color three dimension curved surface ink-jet print
Brush quality.
One of ordinary skill in the art will appreciate that：Accompanying drawing is the schematic diagram of one embodiment, module in accompanying drawing or
Flow process is not necessarily implemented necessary to the present invention.
One of ordinary skill in the art will appreciate that：The module in device in embodiment can be according to embodiment description point
In being distributed in the device of embodiment, it is also possible to carry out respective change and be disposed other than in one or more devices of the present embodiment.On
Stating the module of embodiment can merge into a module, it is also possible to be further split into multiple submodule.
Finally it should be noted that：Above example only to illustrate technical scheme, rather than a limitation；Although
The present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：It still may be used
To modify to the technical scheme described in previous embodiment, or equivalent is carried out to which part technical characteristic；And
These modifications are replaced, and do not make the spirit and model of the essence disengaging embodiment of the present invention technical scheme of appropriate technical solution
Enclose.
Claims (13)
1. a kind of color three dimension curved surface ink jet printing method, it is characterised in that comprise the following steps：
Step 1, three-dimensional body generates three through 3 d object scanning, tri-dimensional photographing, software moulding modeling or data processing method
Dimension module RGB image original copy；
Step 2, matches according to nozzle type with threedimensional model surface configuration, using three-dimensional image segmentation algorithm by the three-dimensional mould
Type RGB image original copy is divided into suitable for the conventional curved surface original copy model of conventional injection head and suitable for the complex-curved of capillary shower nozzle
Original copy model；
Step 3, carries out digital prepress process to the conventional curved surface original copy model and the complex-curved original copy model respectively：Adopt
The conventional curved surface original copy model and the complex-curved original copy model are distinguished into color separation with three-dimensional color space transfer algorithm is
Corresponding three-dimensional CMYK monochromatic models；Respectively half color is carried out to conventional curved surface and complex-curved corresponding three-dimensional CMYK monochromatic models
Mediate reason and generate corresponding three-dimensional monochromatic plus pessimistic concurrency control；Respectively path planning is carried out to three-dimensional monochromatic plus pessimistic concurrency control, generated three-dimensional
The non-plane motion track of object；According to shower nozzle type of drive and the non-plane motion track of three-dimensional body, each described three-dimensional is generated
Monochrome plus the corresponding single-colour ink-jetting control data of pessimistic concurrency control；
Step 4, judges whether the colors of CMYK tetra- spray for completing the conventional curved surface original copy model and the complex-curved original copy model
Black control data, if it is, generating the color ink-jets of three-dimensional CMYK tetra- controls file, and is inputted three-dimension curved surface ink jet printing and sets
In standby, execution step 5 carries out the color ink jet printings of CMYK tetra- of the conventional curved surface；Otherwise, execution step 3；
Step 5, is moved to shower nozzle after ink jetting position static by corresponding conventional monochrome printhead；Three-dimensional body is fixed on into bearing ink pad
On, and bearing ink pad is back to into initial position, back to zero positioning；
Step 6, single-colour ink-jetting passage is opened, adjustment bearing ink pad position so that conventional monochrome printhead sprays in three-dimensional object surface
The Register Mark of print is overlapped, mark single-colour ink-jetting printing initial position；
Step 7, according to single-colour ink-jetting initial position is printed, and conventional monochrome printhead sprays under three-dimensional single-colour ink-jetting control document control
Penetrate ink droplet；Ink is dropped in after three-dimensional object surface and is dried, solidifies；At the same time, according to corresponding three-dimensional body motion control number
According to, control three-dimensional body makees non-plane motion, and through X-axis, Y-axis, Z axis, A to B to position feedback control, it is ensured that space curved surface
Precision, wherein, to rotate about the z axis, B is to for the rotation of normal about the z axis for A；
Step 8, the single-colour ink-jetting printing process for treating conventional curved surface is completed, by corresponding single-colour ink-jetting pathway closure；
Whether step 9, the color inkjet printing process of CMYK tetra- for judging the conventional curved surface is fully completed, if it is, performing step
Rapid 10, carry out the complex-curved color ink jet printings of CMYK tetra-；Otherwise, 5-step 8 of execution step, carries out next color
Conventional curved surface ink jet printing；
Step 10, moves to shower nozzle after ink jetting position static by corresponding capillary monochrome printhead；Bearing ink pad is back to into initial position,
Back to zero is positioned；
Step 11, single-colour ink-jetting passage is opened, adjustment bearing ink pad position so that capillary monochrome printhead sprays in three-dimensional object surface
The Register Mark of print is overlapped, mark single-colour ink-jetting printing initial position；
Step 12, according to single-colour ink-jetting initial position is printed, and capillary monochrome printhead is under three-dimensional single-colour ink-jetting control document control
Ink-jet, and be synchronously dried, solidify the ink droplet for being dropped in three-dimensional object surface；At the same time, moved according to corresponding three-dimensional body
Control data, control three-dimensional body makees non-plane motion, and through X-axis, Y-axis, Z axis, A to B to position feedback control, it is ensured that it is empty
Between surface accuracy；
Step 13, treats that complex-curved single-colour ink-jetting printing process is completed, by corresponding single-colour ink-jetting pathway closure；
Step 14, judges whether the complex-curved color inkjet printing process of CMYK tetra- is fully completed, if it is, execution step
15；Otherwise, 10-step 13 of execution step, carries out the complex-curved ink jet printing of next color；
Whole shower nozzle motion recoveries are back to zero-bit by step 15, close ink discharge device, close drying device, close solidification equipment,
Bearing ink pad back to zero position, completes color three dimension curved surface ink jet printing, and method flow terminates.
2. color three dimension curved surface ink jet printing method according to claim 1, it is characterised in that：
Color three dimension curved surface ink jet printing is by the color ink jet printings of conventional curved surface CMYK tetra- and the color ink-jets of complex-curved CMYK tetra-
Printing composition；
The conventional curved surface is size in Centimeter Level or more, and Curvature varying, aspect ratio are respectively smaller than correspondence setting value, are suitable for
The curved surface of conventional injection head printing；
It is described it is complex-curved be size in millimeter to Centimeter Level, Curvature varying, aspect ratio respectively greater than correspondence setting value is suitable for
The curved surface of capillary shower nozzle printing；
The conventional injection head is size in Centimeter Level, the shower nozzle with multiple spray orifices；
The capillary shower nozzle is that, with slim-lined construction, in millimeter to Centimeter Level, sectional dimension, to grade, has length in micron
One or more spray orifices, and injection diameter is micron-sized shower nozzle.
3. color three dimension curved surface ink jet printing method according to claim 1, it is characterised in that：
The threedimensional model RGB image original copy is based on the threedimensional model coloured image original copy of RGB color optical mode, by three-dimensional article
Swept-volume, tri-dimensional photographing, software moulding modeling or data processing are obtained.
4. color three dimension curved surface ink jet printing method according to claim 1, it is characterised in that：
The three-dimensional image segmentation algorithm is to carry out computing using three-dimensional space data, by the threedimensional model RGB image original copy
It is divided into some conventional curved surfaces and complex-curved algorithm；
The three-dimensional color space transfer algorithm is to carry out computing using three-dimensional space data, by what is represented by RGB color
The method that 3-D view original copy is transformed into CMYK color space representation.
5. color three dimension curved surface ink jet printing method according to claim 1, it is characterised in that：
The color ink-jets of the three-dimensional CMYK tetra- control file includes the color shower nozzle ink-jet control datas of CMYK tetra- and three-dimensional body motion control
Data processed, are respectively used to control shower nozzle ink jet process and Surface Shape of 3-D Object motion process, the shower nozzle ink jet process and described
Surface Shape of 3-D Object motion process synchronization.
6. color three dimension curved surface ink jet printing method according to claim 1, it is characterised in that：
The material of the three-dimensional body be paper, timber, ceramics, gypsum, rubber, resin, plastics, glass, quartz, copper, copper alloy,
The combination of one or more material in aluminium, aluminium alloy, steel, iron, gold, silver.
7. color three dimension curved surface ink jet printing method according to claim 1, it is characterised in that：
The material of the ink droplet is ink；
The diameter range of the ink droplet is micron order to grade, is size identical frequency modulation ink droplet or amplitude modulation of different sizes ink
Drop；
The method of the ink-jet is drop on demand ink jet or continuous inkjet.
8. color three dimension curved surface ink jet printing method according to claim 7, it is characterised in that：The ink is aqueous
Ink.
9. color three dimension curved surface ink jet printing method according to claim 7, it is characterised in that：The ink is that UV is black.
10. color three dimension curved surface ink jet printing method according to claim 7, it is characterised in that：The ink is solvent
Type ink.
11. color three dimension curved surface ink jet printing methods according to claim 1, it is characterised in that：
The shower nozzle is static, and for shower nozzle, remains stationary is not moved in ink jet process；
The three-dimensional body makees non-plane motion in ink jet process, three-dimensional body is fixed on bearing ink pad, does with five motions
The non-plane motion of the free degree；The non-plane motion respectively by X, Y, Z axis move along a straight line, A to B to motion composition, wherein, it is described
Five motion individually motion, part linkage or all linkages.
12. color three dimension curved surface ink jet printing methods according to claim 1, it is characterised in that：
The drying shines drying for natural drying, wind drying, heat drying or infrared light.
13. color three dimension curved surface ink jet printing methods according to claim 1, it is characterised in that：
It is described to be cured as UV illumination curings, natural lighting solidification, be heating and curing or infrared illumination curing.
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| CN105150530B (en) * | 2015-04-30 | 2017-09-08 | 北京敏速自动控制设备有限公司 | Threedimensional model processing method and its device, 3 D-printing method and 3 D-printing equipment |
| CN106393662B (en) * | 2016-11-30 | 2019-11-26 | 深圳市七号科技有限公司 | A kind of device and method of full color 3D printing |
| CN110027336A (en) * | 2018-01-11 | 2019-07-19 | 广东科达洁能股份有限公司 | Curve ceramic jet printing method and device |
| JP7127375B2 (en) * | 2018-06-13 | 2022-08-30 | Ａｇｃ株式会社 | Cover glass having printed layer on curved surface and printing method therefor |
| CN109851398B (en) * | 2019-02-27 | 2021-11-05 | 佛山石湾鹰牌陶瓷有限公司 | Intelligent jet printing process for ceramic large plate |
| CN110239245B (en) * | 2019-07-30 | 2021-06-01 | 深圳市金升彩包装材料有限公司 | Irregular three-dimensional curved surface color printing method based on Internet of things |
| CN110370832A (en) * | 2019-08-16 | 2019-10-25 | 闽江学院 | A kind of threedimensional model surface spray-drawing process |
| CN113183611B (en) * | 2021-04-06 | 2023-03-21 | 湖南工业大学 | Paper pulp molding multicolor printing device and printing method |
| KR102645392B1 (en) * | 2021-07-28 | 2024-03-11 | 한국다이요잉크 주식회사 | Method for manufacturing curved cover member for electronic device |
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Address after: 100036 Beijing city Haidian District Cuiwei Road No. 2 Patentee after: CHINA ACADEMY OF PRINTING TECHNOLOGY Address before: 100036 Beijing city Haidian District Cuiwei Road No. 2 Patentee before: Inst. of Printing Science and Technology, Beijing |