CN2900196Y - Color three dimension object forming device based on UV light hardening process - Google Patents

Color three dimension object forming device based on UV light hardening process Download PDF

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Publication number
CN2900196Y
CN2900196Y CN 200620071984 CN200620071984U CN2900196Y CN 2900196 Y CN2900196 Y CN 2900196Y CN 200620071984 CN200620071984 CN 200620071984 CN 200620071984 U CN200620071984 U CN 200620071984U CN 2900196 Y CN2900196 Y CN 2900196Y
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CN
China
Prior art keywords
ink supply
printing head
groove
guide rail
box
Prior art date
Application number
CN 200620071984
Other languages
Chinese (zh)
Inventor
岳东
杨继全
Original Assignee
南京师范大学
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Application filed by 南京师范大学 filed Critical 南京师范大学
Priority to CN 200620071984 priority Critical patent/CN2900196Y/en
Application granted granted Critical
Publication of CN2900196Y publication Critical patent/CN2900196Y/en

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Abstract

The utility model discloses a color 3D articles molding device based on UV photo-curing technique, which comprises a computer, a storage groove, a molding groove, an UV source, a rotating roller, A Y-oriented guide rail, a X-oriented guide rail, a cleaning groove for the spray sprinting head, a waste liquid groove, a recovery groove, a spray printing head box and an ink supply box. Wherein, the storage groove, molding groove, recovery groove, cleaning groove for the spray printing head 7 are arranged in sequence at the same height. The rotating roller 4 and the Y-oriented guide rail 5 are properly arranged on the opening of those four grooves. In addition, the rotating roller 4 and Y-oriented guide rail 5 are provided with the spray printing head box 12 and UV source 3. An ink supply box 14 has an ink supply pump 15 to replenish all printing heads. An article rushing board 13 and 11 is respectively and horizontally positioned in the storage groove 1 and molding groove 2. 3D articles produced by the utility model have higher smoothness and color brightness compared with those produced with common 3D printing techniques and completes production at higher speed than that of current molding techniques.

Description

3 D color object shaped device based on the UV ultraviolet curing process

Technical field

The utility model relates to a kind of UV of employing ultraviolet curing process with the shaped device of printing type quick Fabrication 3 D color object successively, is a kind of 3 D color object shaped device based on the UV ultraviolet curing process specifically.

Background technology

Rapid shaping technique is a kind of quick Fabrication instrument from the Computerized three-dimensional entity to physical entity, and it is fit to make the functor of prototype and small lot, and the material of the three-dimensional body of making can be materials such as ceramic material, metal material, paper, photosensitive resin.Rapid shaping technique technology relatively more commonly used has ultraviolet curing process, selective laser sintering, the making of fuse deposition, laminated solid mass making and 3 D-printing etc.

More than several technologies can both make complicated three-dimensional body, but except that 3 D-printing technology, the 3D solid of making all is monochromatic.If any company developed the moulding material that can be used for several different colours that fuse deposition makes, but also can only be that each three-dimensional body is monochromatic, can't produce colored three-dimensional body.For aspects such as the conceptual design of product and appearance designs, product has just lacked color representation power like this.

Though 3 D-printing technology can be made colored three-dimensional body, but because it adopts is to spray aqueous binders with printhead, form the more weak synusia of strength ratio with land plaster or starch storage crop, therefore the object of making before not carrying out post processing strength ratio a little less than, easy deformation is difficult for taking out from forming room, and after post processing, shrinkage is bigger, and surface roughness is also bigger.

Summary of the invention

The purpose of this utility model is to provide the shaped device of the high-precision 3 D color object of a kind of energy quick Fabrication--based on the 3 D color object shaped device of UV ultraviolet curing process.

The utility model is made of to guide rail 6, printing head rinse bath 7, waste liquid tank 8, recovery tube 9, accumulator tank 10, printing head box 12, ink supply box 14, ink supply pump 15, ink supply pipe 16 to guide rail 5, X computer, stock chest 1, forming tank 2, UV light source 3, the sliding roller 4 of rotation, Y based on the 3 D color object shaped device of UV ultraviolet curing process; Stock chest 1, forming tank 2, accumulator tank 10, printing head rinse bath 7 co-altitudes are parallel successively to be placed, above four notches, press close to sliding roller 4 of rotation that notch setting can move horizontally and Y to guide rail 5, being equipped with on guide rail 5 at the sliding roller 4 of rotation and Y can be along the printing head box 12 and the UV light source 3 of its slip, a plurality of printheads are housed in the printing head box 12, each printhead links to each other with ink supply box 14 by ink supply pipe 16, and ink supply box 14 is each printhead ink supply by ink supply pump 15; Printing head rinse bath 7 has waste liquid tank 8; In stock chest 1 and forming tank 2, be horizontally disposed with scraping wings 13,11 respectively.

The surface smoothness that the utility model is made three-dimensional body is far above the precision of the three-dimensional body of common 3 D-printing technology making; The vivid degree of color of the three-dimensional body of making will be higher than the vivid degree of color of the three-dimensional body of common 3 D-printing technology making; The speed of making also is much higher than quick shaping process such as common ultraviolet curing process, the making of fuse deposition, laminated solid mass making; The moulding material cost that this utility patent adopts also is significantly less than the moulding material that other several quick shaping process use.

Description of drawings

Fig. 1, be the structural representation of the utility model based on the 3 D color object shaped device of UV ultraviolet curing process.

Shown in Figure 2 is the computer control block diagram.

Fig. 3 is a forming tank motion schematic diagram.

Fig. 4 is a stock chest motion schematic diagram.

Fig. 5 is a printing head box structural representation.

The specific embodiment

Below in conjunction with accompanying drawing, the utility model is described in further detail.

Embodiment: the 3 D color object shaped device structural representation that is based on the UV ultraviolet curing process shown in Figure 1 is made of to guide rail 6, printing head rinse bath 7, waste liquid tank 8, recovery tube 9, accumulator tank 10, printing head box 12, ink supply box 14, ink supply pump 15, ink supply pipe 16 to guide rail 5, X computer, stock chest 1, forming tank 2, UV light source 3, the sliding roller 4 of rotation, Y; Stock chest 1, forming tank 2, accumulator tank 10, printing head rinse bath 7 co-altitudes are parallel successively to be placed, above four notches, press close to sliding roller 4 of rotation that notch setting can move horizontally and Y to guide rail 5, being equipped with on guide rail 5 at the sliding roller 4 of rotation and Y can be along the printing head box 12 and the UV light source 3 of its slip, a plurality of printheads are housed in the printing head box 12, each printhead links to each other with ink supply box 14 by ink supply pipe 16, and ink supply box 14 is each printhead ink supply by ink supply pump 15; Printing head rinse bath 7 has waste liquid tank 8; In stock chest 1 and forming tank 2, be horizontally disposed with scraping wings 13,11 respectively.

The sliding roller 4 of rotation is done directions X along X to guide rail 6 and is moved, and the sliding roller 4 of rotation itself also rotates, and UV light source 3 and printing head box 12 are done plane motion to guide rail 6 and Y to guide rail 5 along X; Scraping wings 11,13 vertical direction move up and down.The sliding roller 4 of rotation is when paving powder for molding 22 above forming tank 2, unnecessary powder for molding 22 is pushed in the accumulator tank 10, waits to be accumulated to when a certain amount of, and the powder in the accumulator tank 10 is poured in the stock chest 1 again.Every printing a period of time, printing head box 12 print X to guide rail 6 and Y under the drive of guide rail 5, in printing head rinse bath 7, clean printhead 121,122,123,124, not blocked to guarantee shower nozzle.The waste liquid that cleans is collected in the waste liquid tank 8 through recovery tube 9, so that harmless treatment is done in unification.The binding agent of each printhead is supplied via ink supply pipe 16 from ink supply box 14 by ink supply pump 15, and ink supply pipe 16 is made up of a plurality of thin ink supply pipes 161,162,163,164, and each thin ink supply pipe is some printhead ink supply separately.

As shown in Figure 2, in computer 17, set up the Computerized three-dimensional physical model of three-dimensional body, it is carried out slicing delamination, obtain a series of two dimension slicing, take out every layer shaping information; Computer 17 is controlled each mechanism respectively according to the shaping information of each layer and is done the coordinated movement of various economic factors.Particularly, when making beginning, computer 17 is by stock chest controller 20 control stock chest guide rails 23, makes scraping wings 13 in the stock chest 1 segment distance that rises, and releases a part of powder for molding 22; Simultaneously, computer 17 is by forming tank controller 21 control forming tank guide rails 24, makes scraping wings 11 in the forming tank 2 segment distance that descends; Then computer 17 is layered on the top of forming tank 2 to rise powder for molding 22 that a segment distance releases of scraping wings 13 by the sliding roller 4 of sliding roller controller 25 control rotations, and in the powder 22 of shop, rotation is slided roller 4 and done counterclockwise moving handle powder 22 and pave; Afterwards, computer 17 is done the X-Y plane motion by shower nozzle X-Y position control circuit 19 control printing head boxes 12; Meanwhile, computer 17 ejects UV by a plurality of shower nozzles in the shower nozzle control circuit 18 control printing head boxes 12 and solidifies glue, is solidified by the UV light source 3 of UV light source controller 28 controls immediately, forms this layer pattern; So repeatedly, injection from level to level, curing and bonding, thus quick Fabrication goes out three-dimensional body.Before making three-dimensional body, temperature sensor 26 detects the temperature of forming tank, meets print conditions as temperature, promptly between 10~30 ℃, can begin to print; Do not reach print conditions as temperature, then start heater 27 and forming tank is heated up or cooling, reach requirement until temperature.

Fig. 3 is the stock chest structural representation.Before every layer of processing, the sliding roller 3 of rotation moves to the left side of stock chest 1, and forming tank guide rail 23 drives scraping wings 13 segment distance that moves up under the driving of stock chest controller 19 afterwards, and the sliding roller 3 of rotation is paved new powder above forming tank 2.

Fig. 4 is the forming tank structural representation.Before every layer of processing, forming tank guide rail 24 is under the driving of forming tank controller 20, drive scraping wings 11 and move down a segment distance, the three-dimensional body of moulding is placed on the scraping wings 11, after waiting to rotate sliding roller 3 new powder being paved, in type part is covered fully in powder, and not bonded powder plays supporting role.

Fig. 5 is a printing head box structural representation.Shown in Figure 5 is the situation of adorning 4 printheads in the print cartridge, in the real process, can 4,8,12,16 even more printhead be installed according to the specific requirement of moulding.Printhead 121 in the diagram supplies positive red UV glue by 161 ink supply pipes, printhead 122 supplies cyan UV glue by 162 ink supply pipes, printhead 123 supplies yellow UV glue by 163 ink supply pipes, printhead 124 supplies colourless UV glue by 164 ink supply pipes, these 4 printheads and 4 ink supply pipes can exchange, promptly 121 printheads also can spray cyan UV glue, also can spray yellow UV glue, also can spray colourless UV glue.

The UV liquid material of making three-dimensional body is comparatively responsive to the light of wavelength 100~800nm.The UV liquid material comprises oligomer, activated monomer, light trigger, colouring agent and other auxiliary agent.(1) oligomer is the low polymer that contains unsaturated functional group, and its non-limiting example is polyurethane acrylate, polyester acrylate, polyoxyalkylene acrylate fat, epoxy acrylate and various modified acroleic acid fat.Preferred this oligomer is that liquid has required low viscosity to keep UV liquid, and preferably its degree of functionality greater than one.If oligomer is the material of on-liquid state, it should dissolve in the liquid component of described active material.(2) activated monomer mainly is in order to improve the viscosity of oligomer.The bifunctionality activated monomer comprises and at least aly is selected from 1, the monomer of 4-butanediol, neopentyl glycol, ethylene glycol, diethylene glycol (DEG), triethylene glycol, polyethylene glycol and diacrylate fat.Three or higher official can activated monomer comprise at least a monomer that is selected from ethoxylated trimethylolpropane acrylate and propoxylated glycerol acrylate.Preferred bifunctional monomer is tri (propylene glycol) diacrylate (TPGDA) and 1,6-hexanediyl ester (HDDA), and preferred trifunctional monomer is trimethylolpropane triacrylate (TMPTA), pentaerythritol triacrylate (PETA).(3) light trigger absorbs energy and excites generation free radical or cation.Free radical photo-initiation is derivative (as benzoin ether, benzil ketals etc.), acetophenone derivs (as to phenoxy group 2 α, 12 hydroxyl ring ethylo benzene ethyl ketones etc.), the aromatic ketone photoinitiator (as benzophenone, chlorinated diphenyl ketone etc.) of benzoin and benzil ketals; Cation light initiator is the acylphosphine compound.(4) colouring agent has determined the color and the optical characteristics of three-dimensional structure, is preferably thermally-stabilised and water-insoluble.(5) auxiliary agent comprises dispersant, lubricant, intensifier, filler, accelerator etc., and it has influence on the term of validity of the curing rate of printing ink and use and thicknesses of layers etc.Can contain fillers such as colloid or nano particle in the UV fluent material, as silica, organic matter, metal or alloy.Liquid viscosity at room temperature is 2~1000cps.Liquid 0~130 ℃, can spray when viscosity is lower than 30cps.

The curing light source that adopts can be the semiconductor diode of centre wavelength in 100~800nm scope; Or be the semiconductor laser of centre wavelength in 100~800nm scope; Or be the solid-state laser of centre wavelength in 100~800nm scope; Or the light source that adopts is the gas laser of centre wavelength in 100~800nm scope; Or the light source that adopts is high pressure or the ultrahigh pressure mercury lamp of centre wavelength in 100~800nm scope; Or the combined light source that forms in two or more combination of light sources of 100~800nm scope for centre wavelength by semiconductor diode, semiconductor laser, solid-state laser, gas laser, high pressure or ultrahigh pressure mercury lamp; Or the combined light source that forms in the combination of light sources by a plurality of different centre wavelengths in semiconductor diode, semiconductor laser, solid-state laser, gas laser, high pressure or the ultrahigh pressure mercury lamp of 100~800nm scope for centre wavelength.

The backing material of filling every layer of white space or non-entity area can be a distilled water, can be to contain to help waterborne liquid icing rapidly or that solidify, as salt solution; Also can be other solvent-borne type liquid; Or dye-type liquid; Or liquid resin.

It is a plurality of making the printing head that uses in the process of three-dimensional structure, can spray fluent material that constitutes the three-dimensional structure body and the backing material that constitutes every layer of support of three-dimensional structure respectively.The aperture size of the nozzle of shower nozzle be 1~100 μ m and (or) size of the drop that sprayed is 1~200pl.

The utility model is the making that the following technical scheme of utilization realizes 3 D color object:

In the process of making three-dimensional body, at first design the computer mock-up of three-dimensional body, it is carried out slicing delamination, take out every layer shaping information; The a plurality of printing heads of computer control are done the printing campaign of setting according to the shaping information of ground floor, printing head solidifies glue to colored UV selectively according to the color information of this layer and is ejected on the powder bed of paving, immediately solidified rapidly by the UV light source, form the colored synusia equiform with the ground floor shaping information, that certain intensity is arranged, not injected powder is as the support of next synusia; On ground floor, re-lay second layer powder, and it is paved; The a plurality of printing heads of computer control spray UV curing glue according to the shaping information of the second layer, are solidified rapidly by the UV light source, form the colored synusia of the second layer, and the second layer and ground floor are bonded to an integral body; Produce each layer according to every layer shaping information successively, the last layer that bonds simultaneously, the three-dimensional body that designs is finally produced in bonding stack layer by layer in computer; Remove unnecessary, not bonded powder, take out the three-dimensional body of making; The three-dimensional body of producing can use after postprocessing working procedures.

When processing every layer, according to the colouring information that contains in every layer the forming data, the UV that the control printing head sprays different colours solidifies glue, thereby ejects the color graphics of this layer.

The three-dimensional body of making need be removed its surface and inner unnecessary, not bonded powder with removing powder equipment.

Claims (1)

1, a kind of 3 D color object shaped device based on the UV ultraviolet curing process is made of to guide rail (6), printing head rinse bath (7), waste liquid tank (8), recovery tube (9), accumulator tank (10), printing head box (12), ink supply box (14), ink supply pump (15), ink supply pipe (16) to guide rail (5), X computer, stock chest (1), forming tank (2), UV light source (3), the sliding roller (4) of rotation, Y; It is characterized in that: stock chest (1), forming tank (2), accumulator tank (10), printing head rinse bath (7) co-altitude is parallel successively to be placed, above four notches, press close to sliding roller (4) of rotation that notch setting can move horizontally and Y to guide rail (5), being equipped with on guide rail (5) at the sliding roller (4) of rotation and Y can be along the printing head box (12) and the UV light source (3) of its slip, the printing head box is equipped with a plurality of printheads in (12), each printhead links to each other with ink supply box (14) by ink supply pipe (16), and ink supply box (14) is each printhead ink supply by ink supply pump (15); Printing head rinse bath (7) has waste liquid tank (8); In stock chest (1) and forming tank (2), be horizontally disposed with scraping wings (13), (11) respectively.
CN 200620071984 2006-05-31 2006-05-31 Color three dimension object forming device based on UV light hardening process CN2900196Y (en)

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CN102363393A (en) * 2010-11-24 2012-02-29 江苏锐毕利实业有限公司 Quick jet printing machine for colorized three-dimensional sand table
CN102371776A (en) * 2010-08-16 2012-03-14 研能科技股份有限公司 Spray printing module suitable for three-dimensional forming mechanism
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