CN107984761A - A kind of 3D printing system suitable for highly viscous aqueous chemical mixed-forming - Google Patents
A kind of 3D printing system suitable for highly viscous aqueous chemical mixed-forming Download PDFInfo
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- CN107984761A CN107984761A CN201711257932.4A CN201711257932A CN107984761A CN 107984761 A CN107984761 A CN 107984761A CN 201711257932 A CN201711257932 A CN 201711257932A CN 107984761 A CN107984761 A CN 107984761A
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- storage tank
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- slime body
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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
- B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
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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
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
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Abstract
The present invention provides a kind of 3D printing system suitable for highly viscous aqueous chemical mixed-forming, including：Storage tank I, storage tank II, the storage tank I, ultrasonic generator is equipped with the upside of storage tank II, the storage tank I, storage tank II upper ends are equipped with exhaust outlet, high slime body charging pump I is equipped with the downside of the storage tank I, high slime body charging pump II is equipped with the downside of storage tank II, the high slime body charging pump I, high slime body charging pump II lower ends are connected to mixing barrel by three-way pipe, static mixer is equipped with mixing barrel, the mixing barrel lower end is equipped with printhead, round wind outlet is installed on the printhead, circular air inlet mouth is installed on the printhead on the upside of the round wind outlet, print platform is equipped with the downside of the printhead, printout is placed on print platform.The present invention accelerates chemical reaction, and the presentation quality and internal structure quality of final printout are obtained in lifting, meanwhile, make feed more steady, with small vibration, low noise.
Description
Technical field
The present invention relates to 3D printing technique field, is specially that a kind of 3D suitable for highly viscous aqueous chemical mixed-forming is beaten
Print system.
Background technology
3D printing technique is earliest originating from the U.S. at the end of the 19th century, and be able to develop in the 1980s and promote.3D
Printing is one of embodiment of newest height " dimension " in S＆T integration body Model, and at the end of the 19th century, American Studies have gone out photosculpture
With landforms forming technique, the 3D printing core for then generating printing technique manufactures thought.
By the exploration and development of more than ten years, 3D printing technique has significant progress, at present in European and American developed countries, 3D
Printing technique has preliminarily formed successful Commercialization Model.Such as in consumer electronics industry, aircraft industry and auto manufacturing field,
3D printing technique can complete complicated and fine make with the custom component of relatively low cost, higher efficiency production small lot
Type.
In recent years, China tries to explore the research of 3D printing technique, achieves good achievement, from the 1990s with
Come, domestic Duo Suo colleges and universities have carried out the independent research of 3D printing technique, and at present, domestic 3D printer is in printing precision, printing speed
Also there is very big gap in degree, stamp with the size and software support etc. and American-European countries, technical merit needs to be further improved.
Service field, east prosperity city have generally had enterprise to carry out commercialized rapid shaping service using 3D printing equipment, its
Service range is related to the multiple fields such as Mold Making, sample making, Computer Aided Design, historical relic recovery.
Traditional manufacturing technology is " subtracting material manufacturing technology ", and 3D printing is then " increases material manufacturing technology ".With traditional manufacture skill
Art is compared, and 3D printing has the clear superiorities such as low, with short production cycle, the saving material of processing cost, from aviation, chain drive to doctor
The numerous areas such as treatment, physical culture, video display, can exhibit one's skill to the full.There is expert to think, 3D printing is as a subversive manufacture skill
Art, who can farthest research and develop, apply, it is meant that grasp manufacturing industry or even the initiative of industrial development.Due to 3D
Printing technology development is still not perfect, and the particularly research to Software of RP System technology is also immature, at present rapid shaping part
Precision and surface quality cannot meet that engineering directly uses mostly, it is impossible to as functional parts, prototype use can only be done.
3D printing technique refers to be superimposed by continuous physical layer, successively increases material to generate the technology of 3D solid,
As a kind of comprehensive application technology, 3D printing combines digital modeling techniques, Electromechanical Control technology, information technology, material supply section
All many cutting edge technology knowledge such as and chemistry, has very high scientific and technological content.3D printer is the core dress of 3D printing
It is standby.It is the complicated electro-mechanical system for integrating machinery, control and computer technology etc., mainly by high-accuracy mechanical system
The subsystem compositions such as system, digital control system, spraying system and shaping environment.In addition, new printed material, printing technology, design with
Control software etc. is also the important component of 3D printing technique system.
3D printing technique will further expand its industry application space, still be faced with many bottlenecks and challenge at present：
First, in terms of cost, existing 3D printer cost still it is universal costly, bring difficulty to its further popularization and application.Two
In terms of being printed material, the moulding material of 3D printing at present uses chemical polymerization thing more, and the limitation of selection is larger, products formed
Physical characteristic is poor, and there is also certain hidden danger for secure context.Third, in terms of precision, speed and efficiency, 3D printing at present into
The precision of product is also unsatisfactory, the demand of the also far inadaptable large-scale production of printing effect, and subject printer operation principle
Limitation, there are Serious conflicts between printing precision and speed.Fourth, in terms of industrial environment, the popularization of 3D printing technique will make production
Product are easier to be replicated and spread, and the pirate risk that manufacturing industry faces increases, and existing knowledge property right protection mechanism is difficult in adapt to produce
The demand of industry future development.
The 3D printing system of current existing highly viscous aqueous chemical mixed-forming, is primarily present following shortcoming：Glutinous to height
In terms of fluent material carries out defoaming pump-down process, the current existing method for exhausting applied to high viscosity fluent material 3D printing,
Main to achieve the purpose that defoaming exhaust using defoamer is added in high slime body, this chemical defoaming method for exhausting is not
Bubble in elimination liquid that can be fully effective.Particularly some tiny minute bubbles, if tiny minute bubbles cannot be effective
Discharge, can produce building-up effect formed bigger bubble, influence the mixing and emulsifying of high viscosity liquid, finally influence whether to print
The quality of part.
In feed control aspect, current existing high slime body 3D printing feeding system intelligence degree is not high, two kinds of materials
Mixing match cannot accurately automatically control, need to calculate to can be compared to by proportioning in advance to be again respectively charged into two storage tanks, by discharge valve
Feed manually, this mode influence distributing precision and printing effect, and the power that high slime body flows to lower one of mixed processes is
By fluid self gravitation, if liquid stickiness is higher, pressure can be obvious insufficient, eventually influences printout quality.
In terms of material mixing, current existing mixed organization drives screw rod to be mixed mainly by machine driving, and one
As need using motor as power source, maintaining is needed after long-time use, internal structure is complicated, of high cost, occupied space
Greatly.Since screw machine driving blending shear forces are smaller, scattered intensity is weaker, while distribution capability is also limited, goes out sometimes
Dead band is now mixed, mixture homogeneity is not high.For the mixing of high viscosity liquid, if to be uniformly mixed, longer mix is needed
Close the time.
It is existing at present for the cured technical solution of 3D printing heat dissipation in terms of the curing molding that radiates, generally using leaf
The modes of chip mechanical fans radiates.This mode radiating efficiency is not high, because being to provide power by motor, has necessarily
Noise, the fan running time is more long, and noise is bigger.Due to using mechanical structure, so occupied space is big, natively seeming
The 3D printing head of narrow space nearby installs inconvenience.Blade fan once install, dry to just it is fixed, can only be single
Radiate in direction, it is impossible to radiate on 360 degree of directions of printhead surrounding.This there is the problem of heat dissipation is uneven.Furthermore vane type machine
Tool fan only radiates this simple function, it is impossible to the processing of dust separation is carried out to 3D printer inner air, also without disappearing
Except the function of inner space electrostatic.
The content of the invention
Technical problem solved by the invention is that providing a kind of 3D suitable for highly viscous aqueous chemical mixed-forming beats
Print system, to solve the problems mentioned in the above background technology.
Technical problem solved by the invention is realized using following technical scheme：One kind is suitable for highly viscous aqueous chemical
The 3D printing system of mixed-forming, including：Ultrasound is equipped with the upside of storage tank I, storage tank II, the storage tank I, storage tank II
Wave generating device, the storage tank I, storage tank II upper ends are equipped with exhaust outlet, and being equipped with high slime body on the downside of the storage tank I is fed
High slime body charging pump II, the high slime body charging pump I, high slime body charging pump II lower ends are equipped with the downside of pump I, storage tank II
Mixing barrel is connected to by three-way pipe, static mixer is equipped with mixing barrel, the mixing barrel lower end is equipped with printhead,
Round wind outlet is installed on the printhead, circular air inlet mouth, institute are installed on the printhead on the upside of the round wind outlet
State and air molecule ionization module, dust particles adsorption module, anode pumping mould are equipped between circular air inlet mouth and round wind outlet
Block, the printhead downside are equipped with print platform, printout are placed on print platform.
On the printhead high-frequency vibration device is equipped with mixing barrel junction.
Ultrasonic water bath is equipped with the outside of the storage tank I, storage tank II, ultrasound is installed on the ultrasonic water bath
Wave height frequency power.
It is equipped with the downside of discharge valve I, storage tank II to be equipped with the downside of discharge valve II, the discharge valve I on the downside of the storage tank I and sets
Have and be equipped with metering device II on the downside of metering device I, discharge valve II.
The ultrasonic generator includes transducer, oscillator, amplitude transformer module, is produced by ultrasonic wave high frequency electric source super
Audio frequency electric oscillation is converted to mechanical oscillation by transducer, and ultrasonic vibration then is passed to amplitude transformer, and amplitude transformer end obtains
Peak swing.
A kind of 3D printing system application method suitable for highly viscous aqueous chemical mixed-forming, comprises the following steps：
(1) defoaming exhaust：Sticked by reaching the height in storage tank I, storage tank II after ultrasonic generator ultrasonic wave rapidly
Liquid surface is simultaneously delivered in ultrasonic water bath, and ultrasonic wave produces cavitation in water bath, is made again through storing tank skin
Use inside high slime body, due to the vibration of sound wave, the material molecule in high slime body also vibrates therewith, makes bubbles burst, together
When bubble molecular structure also destroyed, the gas finally discharged is discharged by exhaust outlet；
(2) batch mixing：Two kinds high slime body material after draining gas enters feeding system by discharge valve I and discharge valve II,
Feeding system is by discharge valve, and metering device, high mucus charging pump composition, high slime body material class can be preset by control system
Type, the parameter such as mixing match value, charging pump feeding speed, open printing after parameter setting is good, signal are passed in discharge valve
In sensor, storage tank I and storage tank II corresponding discharge valve II and discharge valve II switch automatically open up, high slime body material flow
Enter metering device, metering device matches somebody with somebody ratio automatic regulating valve door size according to default, and two kinds high slime body is carried out accurate
Metering is weighed；After metering is weighed, material flows to charging pump under the adsorption capacity of self gravitation and charging pump；Due to high mucus
Body flow resistance is big, and charging pump needs have larger self-suction, and charging pump can be according to the different viscosity adjust automatically of material
Motor speed, to provide suitable self-suction；Enable feed even；Material is provided with certain under the promotion of charging pump
Pressure, static mixing system is flowed to via charging pump discharge port direction；
(3) static mixing：Static mixing system is mainly made of static mixer and mixing barrel, and static mixer is by one
Each and every one static mixer body is formed, and under the action of the pressure dynamics and charging pump of fluid itself, fluid is mixed by a static state
Closing cell cube and flow to next static mixer body, mixing number exponentially increases, in very big fluid viscosity ranges,
It can be applied under different flow regimes；Extrusion molding, which is finally flowed into, through the mixed material of static mixing system cures system
System；
(4) extrusion molding：Extrusion molding curing system is by high-frequency vibration device, and radiate solidification equipment, and printhead cluster is into high
Frequency vibration device provides high frequency Doby vibration source, and the high slime body mixed through static mixer is formed under Doby dither
Nanoscale microspheres shape particle, under the controller control of high-frequency vibration device, nanoscale microsphere particle can be realized to be arranged on demand
Team simultaneously extrudes；Ultimately form printing object.
Compared with prior art, the beneficial effects of the invention are as follows：In terms of defoaming pump-down process is carried out to high-viscous liquid, this
The ultrasonic wave exhaust system applied to high viscosity fluent material 3D printing of design is invented, solves high viscosity liquid well
Defoaming degassing, and energy hydrotropy, emulsifying homogeneous, accelerates chemical reaction, the presentation quality and internal structure quality of final printout
Obtain in lifting.
In feed control aspect, a kind of numerical control feeding system suitable for high slime body 3D printing that the present invention designs, solution
The accurate proportioning problem before two kinds high slime body file printing of having determined and whole-course automation is controlled.System realizes printing
The metering transmission of material, batching control, formulation management.Power is provided for feed using high viscosity impeller pump, controls feeding speed.
According to gear clearance in different material automatic-adjusting pump bodies, make feed more steady, with small vibration, low noise.
In terms of material mixing, the static mixing high slime body 3D printing numerical control output system of the invention designed, reduces
Equipment energy consumption and hardware cost, save equipment inner space, improve mixing efficiency and mixture homogeneity, to be finally printed as
The high quality of product provides guarantee.In addition the static mixing system is simple and compact for structure, easily realizes continuous production.
In terms of the curing molding that radiates, what the present invention designed is applied to the cured voltage control of high viscosity liquid 3D printing heat dissipation
Ion wind molding machine processed, improves radiating efficiency and the heat dissipation uniformity, and guarantee is provided for the quick heat radiating curing of printout,
Indirectly improve print speed and the quality of printout.The air supply mode of movement-less part reduces noise pollution.Based on just
The wind energy produced in negative electron with mode has effectively eliminated the electrostatic and dust particles inside 3D printing equipment.
Brief description of the drawings
Fig. 1 is the structure diagram of the present invention.
Fig. 2 is the round wind outlet structure diagram of the present invention.
Embodiment
In order to make the implement technical means of the present invention, creation characteristic, reached purpose and effect easy to understand, tie below
Conjunction is specifically illustrating, and the present invention is further explained.
As shown in Figure 1 and Figure 2, a kind of 3D print systems suitable for highly viscous aqueous chemical mixed-forming, including：Storing
Ultrasonic generator 2, the storage tank I3, storage are equipped with the upside of tank I3, storage tank II4, the storage tank I3, storage tank II4
Batch can II4 upper ends are equipped with exhaust outlet 1, are equipped with the downside of high slime body charging pump I12, storage tank II4 and set on the downside of the storage tank I3
There is high slime body charging pump II11, the high slime body charging pump I12, high slime body charging pump II11 lower ends are connected by three-way pipe
Mixing barrel 14 is connected to, static mixer 13 is equipped with mixing barrel 14,14 lower end of the mixing barrel is equipped with printhead 21,
Round wind outlet 20 is installed on the printhead 21, annular is installed on the printhead 21 of the upside of round wind outlet 20
Air inlet 16, is equipped with air molecule ionization module 17, dust particles are inhaled between the circular air inlet mouth 16 and round wind outlet 20
Attached module 18, anode pumping module 19, the downside of printhead 21 are equipped with print platform 23, printing are placed on print platform 23
Part.
On the printhead 21 high-frequency vibration device 15 is equipped with mixing 14 junction of barrel.
Ultrasonic water bath 6 is equipped with the outside of the storage tank I3, storage tank II4, is provided with the ultrasonic water bath 6
Ultrasonic wave high frequency electric source 5.
It is equipped with the downside of the storage tank I3 on the downside of discharge valve I8, storage tank II4 and is equipped with discharge valve II7, the discharge valve I8
Downside is equipped with the downside of metering device I10, discharge valve II7 and is equipped with metering device II9.
The ultrasonic generator 2 includes transducer, oscillator, amplitude transformer module, is produced by ultrasonic wave high frequency electric source
Supersonic frequency electric oscillation is converted to mechanical oscillation by transducer, and ultrasonic vibration then is passed to amplitude transformer, and amplitude transformer end is obtained
Obtain peak swing.
A kind of 3D printing system application method suitable for highly viscous aqueous chemical mixed-forming, comprises the following steps：
(1) defoaming exhaust：By being reached after 2 ultrasonic wave of ultrasonic generator in storage tank I3, storage tank II4 rapidly
High slime body surface is simultaneously delivered in ultrasonic water bath, and ultrasonic wave produces cavitation in water bath, again through storage tank
Wall is applied to inside high slime body, and due to the vibration of sound wave, the material molecule in high slime body also vibrates therewith, breaks bubble
Split, while bubble molecular structure is also destroyed, the gas finally discharged is discharged by exhaust outlet；
(2) batch mixing：Two kinds high slime body material after draining gas enters feeding system by discharge valve I and discharge valve II,
Feeding system is by discharge valve, and metering device, high mucus charging pump composition, high slime body material class can be preset by control system
Type, the parameter such as mixing match value, charging pump feeding speed, open printing after parameter setting is good, signal are passed in discharge valve
In sensor, storage tank I and storage tank II corresponding discharge valve II and discharge valve II switch automatically open up, high slime body material flow
Enter metering device, metering device matches somebody with somebody ratio automatic regulating valve door size according to default, and two kinds high slime body is carried out accurate
Metering is weighed；After metering is weighed, material flows to charging pump under the adsorption capacity of self gravitation and charging pump；Due to high mucus
Body flow resistance is big, and charging pump needs have larger self-suction, and charging pump can be according to the different viscosity adjust automatically of material
Motor speed, to provide suitable self-suction；Enable feed even；Material is provided with certain under the promotion of charging pump
Pressure, static mixing system is flowed to via charging pump discharge port direction；
(3) static mixing：Static mixing system is mainly made of static mixer and mixing barrel, and static mixer is by one
Each and every one static mixer body is formed, and under the action of the pressure dynamics and charging pump of fluid itself, fluid is mixed by a static state
Closing cell cube and flow to next static mixer body, mixing number exponentially increases, in very big fluid viscosity ranges,
It can be applied under different flow regimes；Extrusion molding, which is finally flowed into, through the mixed material of static mixing system cures system
System；
(4) extrusion molding：Extrusion molding curing system is by high-frequency vibration device, and radiate solidification equipment, and printhead cluster is into high
Frequency vibration device provides high frequency Doby vibration source, and the high slime body mixed through static mixer is formed under Doby dither
Nanoscale microspheres shape particle, under the controller control of high-frequency vibration device, nanoscale microsphere particle can be realized to be arranged on demand
Team simultaneously extrudes；Ultimately form printing object.
The present invention operation principle be：Need to carry out high slime body material defoaming pump-down process before printing, present invention design
A kind of ultrasonic wave exhaust system, ultrasonic wave are frequencies in 2*104-5*108Sound wave in the range of HZ, ultrasonic generator carry
For sound wave source, transducer, oscillator, amplitude transformer module are integrated with the device.The supersonic frequency electricity produced by ultrasonic wave high frequency electric source
Vibration is converted to mechanical oscillation by transducer, and ultrasonic vibration then is passed to amplitude transformer, and amplitude transformer end obtains maximum and shakes
Width.The large amplitude ultrasonic wave sends the rear rapid high slime body reached in storage tank I and storage tank II by ultrasonic generator
Surface is simultaneously delivered in ultrasonic water bath, and ultrasonic wave produces cavitation in water bath, is applied to again through storing tank skin
Inside high slime body, due to the vibration of sound wave, the material molecule in high slime body also vibrates therewith, and the frequency of molecular vibration determines
The speed of molecular vibration, frequency is higher, and vibration velocity is faster, the high-frequency mechanical vibration of ultrasonic wave makes high slime body material molecule
Very big acceleration is obtained, the movement that this very big acceleration can be such that high viscosity liquid particle produces rapidly makes bubbles burst,
Bubble molecular structure is also destroyed at the same time, and the gas finally discharged is discharged by exhaust outlet.
Two kinds high slime body material after draining gas enters feeding system by discharge valve 1 and discharge valve 2, feeding system by
Discharge valve, metering device, high mucus charging pump composition, wherein high slime body charging pump is by motor, gear reducer, shaft coupling, inside and outside
Rotor, axis, sealing, bearing, flange, pump housing composition.High slime body material type, mixing match can be preset by control system
The parameters such as value, charging pump feeding speed, open printing after parameter setting is good, signal are passed in the sensor in discharge valve, are stored up
Batch can 1 and the corresponding discharge valve 1 of storage tank 2 and discharge valve 2 switch automatically open up, and high slime body material flows into metering device, meter
Amount device matches somebody with somebody ratio automatic regulating valve door size according to default, and carries out accurate measurement to two kinds high slime body and weigh.Metering
After weighing, material flows to charging pump under the adsorption capacity of self gravitation and charging pump.Since high slime body flow resistance is big,
Charging pump needs have larger self-suction, and charging pump can be according to the different viscosity adjust automatically motor speed of material, to carry
For suitable self-suction.Enable feed even.Material is provided with certain pressure under the promotion of charging pump, via feed
Pump out material mouth direction and flow to next process --- static mixing system.
Static mixing system is mainly made of static mixer and mixing barrel, and static mixer is by static mixing one by one
Cell cube is formed, and is a kind of high efficient mixer structure without moving component.Static mixer body can be to the high viscosity of mixing
Fluid is cut, is rotated, and runner flow profile is changed with sectional area.In the pressure dynamics and charging pump of fluid itself
Under the action of, fluid flows to next static mixer body by a static mixer body, and mixing number exponentially increases
Add, in very big fluid viscosity ranges, can be applied under different flow regimes.Not only can be applied to interval but also can apply
In continuous operation.It can make different fluids reach uniform mixing, and basic reason is that static mixer body produces fluid
It is estranged stream, stretching, rotation, interflow etc. movement, during enhance turbulence, these are all greatly promoted Convention diffusion and turbulent fluctuation
Diffusion, so as to cause perfect radial direction mixed effect.Extrusion molding is finally flowed into through the mixed material of static mixing system to consolidate
Change system.
Extrusion molding curing system is by high-frequency vibration device, and radiate solidification equipment, and printhead cluster is into high-frequency vibration device carries
For high frequency Doby vibration source, the high slime body mixed through static mixer forms the small circle of nanoscale under Doby dither
Spherical particle, under the controller control of high-frequency vibration device, nanoscale microsphere particle can be realized and be lined up and extrude on demand.Finally
Form printing object.The piezoelectricity control ion wind heat dissipation solidifying and molding device that the present invention designs, mainly by circular air inlet mouth, air
The several parts of molecular ionization module, dust particles adsorption module, anode pumping module, round wind outlet are formed.Air passes through ring
Shape air inlet reaches air molecule ionization module, and air molecule ionization module forms argon-arc plasma field, make air under high pressure effect
Molecular ionization, the air of partial ionization accelerates the other ions of collision under the action of electric field force, and it is taken electric charge, by this
The a series of collision of sample, the dust particles in air also take electric charge, and under electric field force effect, powered dust particles are to dust
Grain adsorption module movement, is finally adsorbed by the adsorbing powder dust module of oppositely charged.Clean air is in anode pumping area electric field
Its kinetic energy is kept to continue to move to air outlet under the action of power, ion can promote the neutral molecule in air to move, so as to be formed
For the ion wind of heat dissipation, most blown out afterwards through round wind outlet.Due to air outlet using 360 degree of annular designs so can allow
Printer model heat dissipation cures uniformly, and print speed and print quality are all greatly improved.The object printed through dither
, can be fast curing-formed under the cured auxiliary of ion wind system radiating.It is finally completed the printing of the high quality and high efficiency of object.
The ultrasonic wave exhaust system that the present invention designs utilizes the cavitation of ultrasonic wave in a liquid, can effectively discharge height
Gas in viscosity liquid, and energy hydrotropy, emulsifying homogeneous, accelerates chemical reaction.
In feed control aspect, the present invention devises a kind of numerical control feeding system suitable for high slime body 3D printing, energy
Automatic and accurate two kinds of height of control stick the mixed proportion and Automatic-feeding of material.Also high slime body poor fluidity, feed pressure are solved
Hypodynamic problem.Make high slime body material flows flowing even, improve printing effect and print quality indirectly.
In terms of material mixing, the present invention devises a kind of high slime body 3D printing numerical control output system of static mixing, should
It is not high that static mixing system solves existing machinery driven type hybrid system mixture homogeneity, and incorporation time length, occupied space is big,
Energy consumption is big, the problem such as cost height.
In terms of the curing molding that radiates, the present invention devises a kind of cured applied to high viscosity liquid 3D printing heat dissipations
Piezoelectricity controls ion wind molding machine, which produces wind energy based on the principle that positron-electron neutralizes, do not have
Mechanical structure, without other moving parts, noise is almost zero, and the wind energy produced can be the 2- of blade mechanism fan
3 times, so radiating efficiency is very high.Furthermore the ion air feed system module volume is very small, probably there was only mechanical fan
A quarter, installation are very convenient.Because carrying substantial amounts of positive and negative charge in the air-flow that ion wind produces, which can be with
The charging neutrality of institute's band on object is fallen, so the ion air feed system also has the work(for eliminating 3D printer inner space electrostatic
Energy.The air-flow with positive and negative charge that ion wind produces has suction-operated to the dust particles in air.To a certain extent may be used
To purify the air of 3D printer inner space.The Duct design of the ion air feed system is annular, can be near printhead
The heat dissipation of 360 degrees omnidirection is provided, the heat dissipation uniformity is high.
The basic principles, main features and the advantages of the invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the present invention by appended claims and
Its equivalent thereof.
Claims (6)
- A kind of 1. 3D printing system suitable for highly viscous aqueous chemical mixed-forming, it is characterised in that：Including：Storage tank I, storage Ultrasonic generator is equipped with the upside of batch can II, the storage tank I, storage tank II, the storage tank I, storage tank II upper ends are set There is exhaust outlet, be equipped with the downside of the storage tank I on the downside of high slime body charging pump I, storage tank II and be equipped with high slime body charging pump II, The high slime body charging pump I, high slime body charging pump II lower ends are connected to mixing barrel by three-way pipe, mix and are set in barrel There is static mixer, the mixing barrel lower end is equipped with printhead, round wind outlet, the annular are provided with the printhead Circular air inlet mouth is installed, equipped with air point between the circular air inlet mouth and round wind outlet on the printhead on the upside of air outlet Sub- ionization module, dust particles adsorption module, anode pumping module, the printhead downside are equipped with print platform, print platform Upper placement printout.
- 2. a kind of 3D printing system suitable for highly viscous aqueous chemical mixed-forming according to claim 1, its feature It is：On the printhead high-frequency vibration device is equipped with mixing barrel junction.
- 3. a kind of 3D printing system suitable for highly viscous aqueous chemical mixed-forming according to claim 1, its feature It is：Ultrasonic water bath is equipped with the outside of the storage tank I, storage tank II, ultrasonic wave is installed on the ultrasonic water bath High frequency electric source.
- 4. a kind of 3D printing system suitable for highly viscous aqueous chemical mixed-forming according to claim 1, its feature It is：It is equipped with the downside of discharge valve I, storage tank II to be equipped with the downside of discharge valve II, the discharge valve I on the downside of the storage tank I and is equipped with Metering device II is equipped with the downside of metering device I, discharge valve II.
- 5. a kind of 3D printing system suitable for highly viscous aqueous chemical mixed-forming according to claim 1, its feature It is：The ultrasonic generator includes transducer, oscillator, amplitude transformer module, the ultrasound produced by ultrasonic wave high frequency electric source Frequency electric oscillation is converted to mechanical oscillation by transducer, and ultrasonic vibration then is passed to amplitude transformer, and amplitude transformer end obtains most Large amplitude.
- A kind of 6. 3D printing system application method suitable for highly viscous aqueous chemical mixed-forming, it is characterised in that：Including with Lower step：（1）Defoaming exhaust：By the high slime body in storage tank I, storage tank II is reached after ultrasonic generator ultrasonic wave rapidly Surface is simultaneously delivered in ultrasonic water bath, and ultrasonic wave produces cavitation in water bath, is applied to again through storing tank skin Inside high slime body, due to the vibration of sound wave, the material molecule in high slime body also vibrates therewith, makes bubbles burst, while gas Bubble molecular structure is also destroyed, and the gas finally discharged is discharged by exhaust outlet；（2）Batch mixing：Two kinds high slime body material after draining gas enters feeding system by discharge valve I and discharge valve II, feed System is by discharge valve, metering device, high mucus charging pump composition, by control system can preset high slime body material type, The parameter such as mixing match value, charging pump feeding speed, open printing after parameter setting is good, signal pass to the sensing in discharge valve In device, storage tank I and storage tank II corresponding discharge valve II and discharge valve II switch automatically open up, and high slime body material flows into meter Device is measured, metering device matches somebody with somebody ratio automatic regulating valve door size according to default, and carries out accurate measurement to two kinds high slime body Weigh；After metering is weighed, material flows to charging pump under the adsorption capacity of self gravitation and charging pump；Due to high slime body stream Dynamic resistance is big, and charging pump needs have larger self-suction, and charging pump can be according to the different viscosity adjust automatically motor of material Rotating speed, to provide suitable self-suction；Enable feed even；Material is provided with certain pressure under the promotion of charging pump Power, static mixing system is flowed to via charging pump discharge port direction；（3）Static mixing：Static mixing system is mainly made of static mixer and mixing barrel, and static mixer is by one by one Static mixer body is formed, and under the action of the pressure dynamics and charging pump of fluid itself, fluid is by a static mixing list First body flows to next static mixer body, and mixing number exponentially increases, different in very big fluid viscosity ranges Flow regime under can apply；Extrusion molding curing system is finally flowed into through the mixed material of static mixing system；（4）Extrusion molding：Extrusion molding curing system is by high-frequency vibration device, and radiate solidification equipment, and printhead cluster is into high frequency vibrating Dynamic device provides high frequency Doby vibration source, and the high slime body mixed through static mixer forms nanometer under Doby dither Level microspheres shape particle, under the controller control of high-frequency vibration device, nanoscale microsphere particle can be realized to be lined up simultaneously on demand Extrusion；Ultimately form printing object.
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Application publication date: 20180504 |