CN106378454A - Pulse on-off valve type metal 3D printing device - Google Patents

Pulse on-off valve type metal 3D printing device Download PDF

Info

Publication number
CN106378454A
CN106378454A CN201610888070.4A CN201610888070A CN106378454A CN 106378454 A CN106378454 A CN 106378454A CN 201610888070 A CN201610888070 A CN 201610888070A CN 106378454 A CN106378454 A CN 106378454A
Authority
CN
China
Prior art keywords
metal
printing
pulse
type metal
heating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201610888070.4A
Other languages
Chinese (zh)
Other versions
CN106378454B (en
Inventor
单忠德
范聪泽
杨立宁
戎文娟
杨硕
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Advanced Manufacture Technology Center China Academy of Machinery Science and Technology
Original Assignee
Advanced Manufacture Technology Center China Academy of Machinery Science and Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Advanced Manufacture Technology Center China Academy of Machinery Science and Technology filed Critical Advanced Manufacture Technology Center China Academy of Machinery Science and Technology
Priority to CN201610888070.4A priority Critical patent/CN106378454B/en
Publication of CN106378454A publication Critical patent/CN106378454A/en
Application granted granted Critical
Publication of CN106378454B publication Critical patent/CN106378454B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
    • B22F10/30—Process control
    • B22F10/31—Calibration of process steps or apparatus settings, e.g. before or during manufacturing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/115—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by spraying molten metal, i.e. spray sintering, spray casting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
    • B22F10/30—Process control
    • B22F10/32—Process control of the atmosphere, e.g. composition or pressure in a building chamber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
    • B22F12/10—Auxiliary heating means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
    • B22F12/22—Driving means
    • B22F12/226—Driving means for rotary motion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
    • B22F12/30—Platforms or substrates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
    • B22F12/90—Means for process control, e.g. cameras or sensors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/10—Sintering only
    • B22F3/1003—Use of special medium during sintering, e.g. sintering aid
    • B22F3/1007—Atmosphere
    • 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
    • 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
    • B33Y50/00—Data acquisition or data processing for additive manufacturing
    • B33Y50/02—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
    • B22F10/20—Direct sintering or melting
    • B22F10/22—Direct deposition of molten metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Analytical Chemistry (AREA)

Abstract

The invention discloses a pulse on-off valve type metal 3D printing device capable of realizing precise spray-deposition 3D printing formation of molten metal under the control of a pulse on-off valve. More specifically, the pulse on-off valve type metal 3D printing device is characterized in that a metal liquid is purified through melting and filtering, the precise controllable continuous spray of the molten metal is realized through controlling the pulse on-off of a rotating blade-shaped valve at a printing spray head, the movement of the spray head is controlled through a three-dimensional coordinate platform, a forming platform is provided with stable temperature by a printing substrate, and low-cost additive manufacturing equipment capable of realizing rapid metal melting, multistage purification and precise controllable spray deposition is finally designed.

Description

A kind of pulse break-make valve type metal 3D printing device
Technical field
Present invention is mainly applied to the material increasing field of metal material, it is related to a kind of achievable motlten metal and leads in pulse Accurate jet deposition formation device under disconnected valve control.In more detail, it is a feature of the present invention that being melted and many by multistage Level filters the purification realizing molten metal, realizes the controllable precise of molten metal by the pulsed break-make controlling valve at printing head Injection.
Background technology
3D printing technique comes across the eighties in 20th century, and it is that a kind of method that employing material gradually adds up manufactures entity zero The technology of part, removes Machining Technology for Cutting with respect to traditional material, is the manufacture method of a kind of " from bottom to top ".This skill Art does not need traditional cutter and fixture and multi-step process, can produce arbitrarily multiple on an equipment fast precise The part of miscellaneous shape, it is achieved thereby that part " freely manufacturing ", solves the shaping of many parts with complex structures, and greatly reduces Manufacturing procedure, shortens the process-cycle.And product structure is more complicated, the effect of its manufacturing speed is more notable.Mai Kenxi Predict 2025, whole increasing material manufacturing application market is up to the amount of money of 4,600,000,000,000 U.S. dollars.In equipment end, Smarttech is pre- Measure the year two thousand twenty, the scale of relevant device, material and service market is expected to reach 11,300,000,000 U.S. dollars, printing device is following 10 Year will occupy 50% staple market.In the face of huge demand, lot of domestic and international enterprise, colleges and universities and scientific research institutions are fast to photocuring Rapid-result type (SLA）, stacking entity system (LOM), laser/electron beam melt powder/line molding (SLS/SLM/EBM）, molded through three-dimensional printing (3DP), the forming method such as fused glass pellet (FDM) is furtherd investigate, and develops many moneys increasing material manufacturing equipment.Existing one-tenth Formed precision is still suffered from, shaping speed is difficult to the problem taken into account in type method and apparatus, additionally, as methods such as SLS/SLM/EBM Although in can preferably realize the controlled three-dimensionally shaped of metal material, laser and electron beam equipment relevant cost are higher, directly Connect the popularization affecting this technology and industrialization.
Metal jet based on metal jet deposition technique and 3D printing method deposits 3D printing method, directly passes through continuous The mode that air pressure pushes makes motlten metal be sprayed by nozzle, and constantly deposits in forming platform, shapes gold by successively adding up Belong to part, efficient, inexpensive, the direct printing-forming of achievable metalwork.But when jet deposition speed is higher, due to metal Fluid viscosity is relatively low, and spouting velocity and deposition accuracy are difficult to control to.And legacy equipment is relatively simple for structure, function phase to single, The functions such as melt impurity and purification cannot be realized.In the present invention, design is multistage to melt and Multistage filtering device, realizes the net of molten metal Change；Using the rotating vane of special shape, realize the pulse break-make of valve type, thus controlling the accurate injection of molten metal.Finally, grind Make metal rapid melting, multistage purification, the inexpensive increasing material manufacturing equipment of controllable precise jet deposition.
Content of the invention
The purpose of the present invention is based on existing metal jet deposition 3D printing forming technique, develops a can achieve Metal rapid melting, multistage purification, the inexpensive increasing material manufacturing equipment of controllable precise jet deposition.
For achieving the above object, the technical solution used in the present invention is as follows：
A kind of pulse break-make valve type metal 3D printing device, composition includes：For Models of Spray Deposition provide vacuum environment part, For realizing the shower nozzle of metal precise control shaping, for realizing the two-step purification part of molten metal refine, providing stably depositing environment Printing substrate part, be realize molten metal orientated deposition three-axis moving platform, steady for realizing whole fusion sediment process The fixed measurement carrying out in order and the part of control.
In the present invention, can using this equipment realize jet deposition material ranges wider, in theory from thermoplastic, to Aluminium alloy, magnesium alloy, kirsite or even high temperature alloy etc. all can achieve and print, so for being also easy to produce the more alive of oxide inclusion Bold and vigorous metal, needs in print procedure to provide vacuum environment or inert gas shielding.According to alloy melting principle, vacuum or indifferent gas Body environment also contributes to be mingled with the precipitation with micro-bubble in melt, contributes to metal purification.In this equipment, the limit can be extracted into true Reciprocal of duty cycle is 10Pa, and the time used is 20min.
Further, vacuum system includes device housings, vacuum valve, vacuum pipe and two-stage vacuum pump.Vacuum system After self-starting, whole runnings can realize Automatic Control.Vacuum needed for setting is not reached after First vacuum pump startup When second vacuum pump startup to the vacuum values reaching setting.After reaching required setting value, First vacuum pump stops then the Two vacuum pumps stop circulation work.
In the present invention, the shower nozzle for realizing the shaping of metal precise control comprises shower nozzle heating part, motor, rotating wheel And nozzle, shower nozzle part is the core of this device.Motor rotates under pulse electrical signal effect, drives special rotating wheel fortune Dynamic, realize the on-off control effect to melt canal.The parameter that the method passes through to change pulse signal can achieve to metal bath The precise control of dropping velocity, shapes thus producing and stablizing liquor stream in substrate deposition.Which achieves " metal bath valve " Function, and shower nozzle is in heating environment it is not easy to block.
In the present invention, the two-step purification part for realizing molten metal refine includes two melting kettles, and solid metallic melts Device adopts sensing heating, and which has the advantages that heating power is big, firing rate is fast, homogeneous heating, can achieve multiple gold The quick heating belonging to（If material itself does not fall magnetic, copper band can be increased, by copper band heat production and be conducted to metal material）.Solid In state metal molten device, achievable blanking, adding refining agent, stirring, the function of skimming, thus improving melting efficiency, being lifted Smelting metal liquid quality.Fluent metal thermal insulation melting appartus mainly adopt resistance heating, because upper level flows out metal temperature relatively Height, it is solid that heating system primarily serves the purpose of heat insulation.The power of heating system is 10kw, and the power of resistive heating system is 1kw.
Further, be respectively mounted temperature sensor in melting appartus at different levels, can real-time monitoring melt temperature change, and Adjust heating powers at different levels according to demand.
Further, the metal bath below 1300 degree for temperature, strong from low cost, good stability, non-oxidizability K-type（Nickel network-nisiloy）Thermocouple temperature measurement, and Real-time Feedback analog quantity temperature signal.
In the present invention, the printing substrate of stably depositing environment is provided partly forming accuracy to be had a significant impact.Printing substrate Including adding thermal resistance, cooling water recirculation system, temperature sensor.The real-time monitoring of forming platform temperature in achievable work process And regulation, make work process be maintained at proper temperature, it is to avoid the phenomenon such as solidification that inter-laminar stress causes is uneven.
In the present invention, triaxial movement platform is fallen from the positioning and directing of the molten metal realized, and shower nozzle is fixed on this three-dimensional On telecontrol equipment, by computer drawing 3-D graphic, it is layered through Slice Software and generates 3 D motion trace code, thus Motion realizes printing layer by layer accumulation.
In the present invention, measurement and control section need collecting temperature, pressure, three kinds of signals of image altogether, control sensing heating, electricity The links such as resistance heating, substrate heating, motor, bath surface air pressure, three-dimensional platform motion.By to melting appartus at different levels, Shower nozzle, printing substrate temperature, bath surface pressure, the real-time monitoring of droplet photos, analysis sends control command after judging, makes temperature The parameter such as degree and air pressure meets printing demand.
Further, bath surface stable gas pressure is realized by air pressure controlling system, he include gas cylinder, decompression venting valve, two The original papers such as position-3-way solenoid valve, determine the mathematics of the surface pressure in flow velocity and second level molten bath after being computed simulating and test correction Relation, Real-time Collection pressure signal, control the open and-shut mode of each valve body.
Further, picture collection device can real-time monitoring collection molten drop picture, through data analysiss, can get molten drop size and The parameters such as flow velocity, be computed analysis after, can as feed back input control system, further instruct and revise print procedure in other Link.
Further, measurement and control section include temperature, pressure transducer, digital quantity/analog input and output module, work Industry control computer etc..In print procedure, real-time monitoring temperature signal everywhere, the pressure signal above melt, collection is simultaneously It is sent to computer, after Data Analysis Services, send corresponding digital signal, control the works such as electromagnetic valve, motor heating coil Make the state of unit.
Beneficial effect：
1., in the present invention, design new type nozzle, principle is to realize the effect of metal bath valve by the rotation of rotating wheel, stabilizes Drop flow velocity, greatly improves printing precision.
2. controlled molten in the present invention by the break-make of " pulse valve " in the pressure and shower nozzle in control subordinate melting appartus Body jet velocity, after revising through theoretical calculating simulation and experiment, obtains corresponding pressure, corresponding motor rotating speed and deposition print speed The mathematical relationship of degree, and then can achieve the precise control of print procedure, can achieve the quick, jet deposition formation of degree of precision.
3., in the present invention, alloy melting, injection, deposition process are all carried out under vacuum or inert gas environment, according to not Same alloy melting and forming requirements, can control the normality pressure in printing environment.Vacuum or atmosphere of inert gases not only may be used To realize the purification of alloy melt, and can ensure that in print procedure, molten metal is not oxidized.
4. in the present invention, vacuum system includes two-stage vacuum pump, and vacuum can achieve Automated condtrol, then inputs institute After needing pressure, first order vacuum pump startup works, after reaching certain pressure, two-stage vacuum pump cooperation, and improve pumping speed Rate, can achieve higher vacuum level requirements.
5. can achieve fast blanking in the present invention and skim, upper level can achieve molten metal stirring in purifying, next stage is net Filter screen is had to may filter that the impurity such as metal-oxide in change.
6. the present invention includes two-stage melting appartus, and every grade of melting appartus use different principle of heatings, according to fusing Or the demand of insulation adjusts heating power, i.e. save energy, can accurately realize the requirement printing it is ensured that printing metal temperature again Stable.
7. using image collecting device real-time image acquisition data in the present invention, and analyze in time, form control command and repair The parameter such as positive air pressure and motor rotating speed, forms closure and controls, lift printing precision.
8. in the present invention, links all have corresponding measurement sensor cooperating, and real-time monitoring parameters simultaneously upload phase Answer data, by measurement and control unit, and then can achieve that evacuation, heating, fusion sediment print（Comprise three-axis platform motion）On ring That saves automatically controls.
Brief description
A kind of Fig. 1 pulse break-make valve type metal 3D printing schematic diagram of device.
A kind of Fig. 2 pulse break-make valve type metal 3D printing device shower head principle figure.
Pulse valve schematic diagram in Fig. 3 shower nozzle.
Fig. 4 pneumatic control system schematic diagram.
Fig. 5 controls and acquisition system schematic diagram.
Specific embodiment
In order that the purpose of patent of the present invention, technical scheme and advantage become more apparent, below in conjunction with accompanying drawing and enforcement Example, is described in more detail to patent of the present invention.
Embodiment one：
A kind of pulse break-make valve type metal 3D printing device, its composition includes：There is provided taking out of vacuum environment for Models of Spray Deposition Vacuum system, the shower nozzle for realizing metal precise control reaction-injection moulding（7）, be realize molten metal refine stage purifying device, Stably depositing is provided to shape the printing substrate of environment（4）, be to realize the triaxial movement platform of molten metal orientated deposition., for realizing Measurement and the part of control that whole fusion sediment process stabilization is carried out in order.
Embodiment two：
Before jet deposition 3D printing starts, by putting into solid metallic melting appartus by printing metal material（14）, two-stage vacuum Pump（1）Work, opens vacuum valve（2）, by vacuum line（3）To whole print system evacuation, after reaching certain vacuum degree, Start sensing heating metal material, add refining agent, by retainer ring（17）The stirring rod driving（18）Motion makes refining agent expand Dissipate uniformly, and produce slag.Carry out process of skimming after alloy is completely melt, standing a period of time makes alloying component stable.Open Open next stage melting appartus（9）, treat that temperature reaches preset value, molten metal in upper level melting appartus poured into this grade of fusing dress Put, by filter screen（11）Filter, after the completion of closing presure lid（12）, pressure cover is by fixing bolt（24）With melting appartus（9）Even Connect.Molten metal standing a period of time, equilibrium temperature and composition.Temperaturecontrol sensor（20、26）Real-time Collection two-step purification fills The temperature put, analysis judgement sends heating or stops heating signal.
Embodiment three：
Bath surface stable gas pressure is realized by air pressure controlling system, by pressure transducer（23）Collection pressure data, uploads Collect to industrial computer and analyze.When air pressure is higher than setting value, open electromagnetic valve（33）UNICOM's exhaustor（34）, to system deflation, Reduce pressure；When air pressure is less than setting value, open electromagnetic valve（33）UNICOM's gas cylinder（31）, system is inflated, increases pressure.
Example IV：
Open printing substrate（4）Middle heating and cooling water recirculation system（5）, by temperature sensor（27）Real-time Collection temperature is believed Number, control printing substrate after analysis and processing data（4）Temperature reach preset value.
Embodiment five：
Pressure stability after reaching setting value, drives shower nozzle motion by three-dimensional movement platform.Metal bath is in air pressure and gravity Nozzle is flowed freely under effect（31）, motor（29）Rotate under pulse electrical signal effect, drive special rotating wheel（30） Motion, realizes the on-off control effect to melt canal.Work as rotating wheel（30）Go to special angle, melting appartus（9）And nozzle （31）Connect, molten metal flows out；Rotating wheel（30）Continue motion, pathway closure；Work as motor（29）Rotate to next week Phase, " break-make " situation can stably occur.
Embodiment six：
High-speed camera（6）Real-time monitoring gathers molten drop picture, through image pick-up card by data transfer such as industrial computer, by image Analysis obtains molten drop size and flow parameters, through calculating further after analysis, as feed back input control system.
Embodiment seven：
This equipment needs by sensor real-time monitoring temperature, pressure, view data, and is uploaded to industrial control computer in time Middle corresponding program, controls each heating module heating power, the three-dimensional path of motion module, the pressure of air pressure module after discriminatory analysis Regulation and control, rotating speed of motor etc..
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for the skill of this area For art personnel, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, made any repair Change, equivalent, improvement etc., should be included within the scope of the present invention.

Claims (7)

1. a kind of pulse break-make valve type metal 3D printing device is it is characterised in that include：Pumped vacuum systems, shower nozzle（7）, Multistage purifying Gasifying device, air pressure controlling system（22）, printing substrate（4）, triaxial movement platform（28）, image capturing system；Pumped vacuum systems By device housings（19）, two-stage vacuum pump（1）, vacuum valve（2）And its connecting line（3）Composition；Stage purifying device includes solid State metal molten device（15）, fluent metal thermal insulation device（9）, and its subsidiary sensing heating（13）, resistive heating device （8）；Air pressure controlling system（22）By pressure cover（12）With melting appartus（15）Connect, pressure cover（12）In bolt（25）Consolidate Fix and can achieve rotation, convenient supplementary molten metal；Printing substrate（4）By being arranged in its internal adding thermal resistance and cooling water circulation System（5）, temperature sensor（27）Composition；Triaxial movement platform（28）It is arranged in below substrate, realized by connector and base Plate is synchronized with the movement；Image capturing system high speed video camera（6）It is arranged in shower nozzle side, status requirement can shoot melt pattern.
2. a kind of pulse break-make valve type metal 3D printing device according to claim 1 is it is characterised in that described vacuum system System includes device housings（19）, vacuum valve（2）, vacuum pipe（3）With two-stage vacuum pump（1）；By vacuum pump（1）To shaping Environment carries out evacuation, reduces oxidation in print procedure for the metal bath.
3. a kind of pulse break-make valve type metal 3D printing device according to claim 1 is it is characterised in that described shower nozzle （7）Including motor（29）, rotating wheel（30）And nozzle（31）；Melt（9）Flow freely into spray under air pressure and action of gravity Mouth（31）, motor（29）Rotate under pulse electrical signal effect, and wheel is rotated（30）Motion, realizes to melt canal On-off control effect；Rotating wheel（30）By swingle and motor（29）Link, can achieve linkage；Rotating wheel（30）One Side has through hole, as shown in figure 3, working as through hole and two grades of smelting apparatus（9）When infusion channel is connected, melt is in air pressure and gravity Infusion channel and through hole is flowed through under effect, and by nozzle（31）End sprays, rotating wheel（30）After rotating to an angle, transfusion is logical Road is blocked, and melt stops injection；Nozzle（31）Aperture can be plurality of specifications, thus adapting to different metal materials and printing speed Degree requires.
4. a kind of pulse break-make valve type metal 3D printing device according to claim 1 is it is characterised in that metal bath can Realize multistage refine, melting appartus（14）Using the fast induction heating mode of firing rate（15）, and this device is uncovered, can be real Now expect, add refining agent, stirring, the function of skimming；Melting appartus（9）Using resistance heating（8）, play the solid work of heat insulation With, and it is fixed with drainage screen in this device（10）, may filter that the impurity such as bulky grain oxide in melt；Sensed by temperature control Device（20、26）The temperature of Real-time Collection two-stage purification device, analysis judges and sends heating or stops heating signal.
5. a kind of pulse break-make valve type metal 3D printing device according to claim 1 is it is characterised in that described printing base Plate（4）Including adding thermal resistance and cooling water recirculation system（5）, temperature sensor（27）, by cooling water recirculation system and heating The cooperation of system, realizes stable substrate temperature and controls.
6. a kind of pulse break-make valve type metal 3D printing device according to claim 1 is it is characterised in that bath surface gas Pressure passes through air pressure controlling system（22）Realize, it includes gas cylinder（31）, decompression venting valve（32）, two-bit triplet electromagnetic valve（33）Deng Original paper, determines flow velocity and fluent metal thermal insulation device after being computed simulating and test correction（9）The mathematical relationship of air pressure inside, real When gather pressure signal, control the open and-shut mode of each valve body,
When air pressure is higher than setting value, open electromagnetic valve（33）UNICOM's exhaustor（34）, to system deflation, reduce pressure；Work as gas Force down when setting value, open electromagnetic valve（33）UNICOM's gas cylinder（31）, system is inflated, increases pressure.
7. a kind of pulse break-make valve type metal 3D printing device according to claim 1 is it is characterised in that high-speed camera （6）Real-time monitoring collection can spray and deposit the pattern of molten drop, through data analysiss, can get the parameters such as molten drop size and flow velocity, After being computed analysis, can instruct further and revise other links in print procedure as feed back input control system.
CN201610888070.4A 2016-10-12 2016-10-12 A kind of pulse on-off valve type metal 3D printing device Active CN106378454B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610888070.4A CN106378454B (en) 2016-10-12 2016-10-12 A kind of pulse on-off valve type metal 3D printing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610888070.4A CN106378454B (en) 2016-10-12 2016-10-12 A kind of pulse on-off valve type metal 3D printing device

Publications (2)

Publication Number Publication Date
CN106378454A true CN106378454A (en) 2017-02-08
CN106378454B CN106378454B (en) 2019-11-05

Family

ID=57937233

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610888070.4A Active CN106378454B (en) 2016-10-12 2016-10-12 A kind of pulse on-off valve type metal 3D printing device

Country Status (1)

Country Link
CN (1) CN106378454B (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108015286A (en) * 2018-01-12 2018-05-11 吉林大学 High-entropy alloy droplet ejection increasing material manufacturing apparatus and method
CN108161005A (en) * 2017-12-29 2018-06-15 庄文礼 The method of work of the melting appartus of 3D printer
CN108213436A (en) * 2018-02-12 2018-06-29 东南大学 A kind of former of liquid metal 3D printing from top to bottom
CN111112622A (en) * 2018-10-31 2020-05-08 北京梦之墨科技有限公司 Low-melting-point metal ink channel, ink filling system and printing system
CN113084202A (en) * 2021-03-18 2021-07-09 西安交通大学 Melt flow control device and method for melt coating forming process
CN113695573A (en) * 2020-05-07 2021-11-26 昆山晶微新材料研究院有限公司 Continuous liquid supply printing system and method for 3D printing of liquid metal
CN113695593A (en) * 2020-05-07 2021-11-26 昆山晶微新材料研究院有限公司 Liquid 3D printing liquid supply method and liquid supply system for producing high-uniformity aviation material
CN114889137A (en) * 2022-05-06 2022-08-12 上海轮廓科技有限公司 3D printer, method and device for same, 3D printing system and storage medium

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103056367A (en) * 2012-12-29 2013-04-24 大连理工大学 Three-dimensional rapid prototyping method and device based on pulse small hole droplet injection
CN203992400U (en) * 2014-08-05 2014-12-10 北京依米康科技发展有限公司 A kind of low-melting-point metal 3D printing equipment
CN105834430A (en) * 2015-01-12 2016-08-10 中国科学院宁波材料技术与工程研究所 3D (3-dimensional) printing device
CN105945285A (en) * 2016-05-17 2016-09-21 江西省科学院应用物理研究所 Method and device for preparing lattice structure parts from uniform metal droplets
WO2016148332A1 (en) * 2015-03-16 2016-09-22 Lg Electronics Inc. Printing apparatus for building three-dimensional object
CN206425550U (en) * 2016-10-12 2017-08-22 机械科学研究总院先进制造技术研究中心 A kind of pulse break-make valve type metal 3D printing device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103056367A (en) * 2012-12-29 2013-04-24 大连理工大学 Three-dimensional rapid prototyping method and device based on pulse small hole droplet injection
CN203992400U (en) * 2014-08-05 2014-12-10 北京依米康科技发展有限公司 A kind of low-melting-point metal 3D printing equipment
CN105834430A (en) * 2015-01-12 2016-08-10 中国科学院宁波材料技术与工程研究所 3D (3-dimensional) printing device
WO2016148332A1 (en) * 2015-03-16 2016-09-22 Lg Electronics Inc. Printing apparatus for building three-dimensional object
CN105945285A (en) * 2016-05-17 2016-09-21 江西省科学院应用物理研究所 Method and device for preparing lattice structure parts from uniform metal droplets
CN206425550U (en) * 2016-10-12 2017-08-22 机械科学研究总院先进制造技术研究中心 A kind of pulse break-make valve type metal 3D printing device

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108161005A (en) * 2017-12-29 2018-06-15 庄文礼 The method of work of the melting appartus of 3D printer
CN108015286A (en) * 2018-01-12 2018-05-11 吉林大学 High-entropy alloy droplet ejection increasing material manufacturing apparatus and method
CN108015286B (en) * 2018-01-12 2023-08-22 吉林大学 High-entropy alloy droplet ejection additive manufacturing device and method
CN108213436A (en) * 2018-02-12 2018-06-29 东南大学 A kind of former of liquid metal 3D printing from top to bottom
CN108213436B (en) * 2018-02-12 2020-02-04 东南大学 Top-down liquid metal 3D prints former
CN111112622A (en) * 2018-10-31 2020-05-08 北京梦之墨科技有限公司 Low-melting-point metal ink channel, ink filling system and printing system
CN113695573A (en) * 2020-05-07 2021-11-26 昆山晶微新材料研究院有限公司 Continuous liquid supply printing system and method for 3D printing of liquid metal
CN113695593A (en) * 2020-05-07 2021-11-26 昆山晶微新材料研究院有限公司 Liquid 3D printing liquid supply method and liquid supply system for producing high-uniformity aviation material
CN113084202A (en) * 2021-03-18 2021-07-09 西安交通大学 Melt flow control device and method for melt coating forming process
CN113084202B (en) * 2021-03-18 2022-05-20 西安交通大学 Melt flow control device and method for melt coating forming process
CN114889137A (en) * 2022-05-06 2022-08-12 上海轮廓科技有限公司 3D printer, method and device for same, 3D printing system and storage medium

Also Published As

Publication number Publication date
CN106378454B (en) 2019-11-05

Similar Documents

Publication Publication Date Title
CN106378454A (en) Pulse on-off valve type metal 3D printing device
CN103056367B (en) A kind of method based on pulse small hole liquid drop injecting three-dimensional fast shaping and device
CN105945285B (en) A kind of homogeneous metal drop prepares the method and apparatus of lattice structure part
CN103008672B (en) Pulse small hole many vibrating arms gunite efficiently prepares method and the device of homogeneous spherical micro-particle
CN106363920A (en) High-efficiency high-mechanical-property 3D printing device and method based on fused deposition
CN104493186B (en) A kind of preparation facilities of homogeneous spherical micro-particle and preparation method thereof
CN111482614B (en) Intelligent gas atomization powder making device
CN105383060A (en) 3D printing device integrating material supplying, fluxing and crystal leveling assistance
CN105834430B (en) 3d printing device
CN206425550U (en) A kind of pulse break-make valve type metal 3D printing device
CN204413150U (en) 3D printing equipment
CN105817626A (en) Molten coating forming device and method of metal material gradient components
CN104588674A (en) High efficiency superfine spherical metal powder preparation method and device
CN104001906B (en) The shaping device and method of thin layer rapid solidification
CN110901067B (en) Coaxial 3D printing extrusion device and space three-dimensional circuit forming method
CN110489820A (en) A kind of welding pool Microstructural Evolution analogy method based on Cellular Automata Method
CN108380871A (en) A kind of nano metal powder 3 D-printing forming method based on sensing heating
CN110027217B (en) Active monitoring type laser 3D printing device and monitoring method
CN108188399A (en) A kind of selective laser melting shapes feeding device
CN106001567B (en) Laser rapid prototyping supplies powder device in succession
CN105903975B (en) A kind of equipment for atomized metal pow der production method
CN107282925B (en) A kind of 3D printing equipment and method
CN108213436B (en) Top-down liquid metal 3D prints former
CN208408549U (en) A kind of 3D printing system based on magnetic field in conjunction with sintering technology
CN113510220B (en) Artificial skeleton forming device applying digital 3D printing technology

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
CB02 Change of applicant information

Address after: 100083, the 3 main building, No. 18 clear road, Haidian District, Beijing

Applicant after: Beijing Institute of light quantitative science and Research Co., Ltd.

Address before: 100083 3, main building, 18 Haidian District Road, Haidian District, Beijing.

Applicant before: Advanced Manufacture Technology Center,China Academy of Machinery Science & Technology

CB02 Change of applicant information
GR01 Patent grant
GR01 Patent grant