CN205364544U - 3D prints feed, fluxes and crystallization in motion flattening integrated device - Google Patents
3D prints feed, fluxes and crystallization in motion flattening integrated device Download PDFInfo
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- CN205364544U CN205364544U CN201521009507.XU CN201521009507U CN205364544U CN 205364544 U CN205364544 U CN 205364544U CN 201521009507 U CN201521009507 U CN 201521009507U CN 205364544 U CN205364544 U CN 205364544U
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- crystallization
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Abstract
The utility model provides a 3D prints feed, fluxes and crystallization in motion flattening integrated device, includes support, feed bin, first compulsory feeding mechanism, second compulsory feeding mechanism, boosting head and supplementary crystallization flattening vibrating head, feed bin, first compulsory feeding mechanism, second force feeding mechanism, boosting head and supplementary crystallization flattening vibrating head all to install on the support, feed bin, first compulsory feeding mechanism and second force feeding mechanism to connect gradually, the second is forced feeding mechanism's discharge gate department to be connected with the nozzle and is provided with heating device in discharge gate department, the place ahead and rear that the bottom of support is located the nozzle are provided with boosting head and supplementary crystallization flattening vibrating head respectively. The device easy operation, reliable and stable, safeguard conveniently, improved the compactness that 3D printed in -process shaping work piece, combines between shaping work piece layer, with low costs, and through adjusting corresponding parts material selection, dimensional change and technology, can adapt to different kinds of powder material's fused deposition.
Description
Technical field
This utility model relates to the device in a kind of 3D printing technique for powder carry, heating and aid in treatment, belongs to 3D printing technique field.
Background technology
3D printing technique is a kind of utilization powdery metal, filament-type plastic or thread wax etc. can jointing materials, the technology of article is constructed by the mode of successively superposition, the complicated 3D body of required Forming Workpiece is converted into by slicing treatment the combination in simple 2D cross section, traditional machining tool and tool and mould need not be adopted, three-dimensional computer aided design models according to workpiece, on computer-controlled fast forming machine, along short transverse layer by layer deposition material, a series of 2D cross sections lamella of Forming Workpiece, and make to be mutually bonded between lamella and lamella, finally it is piled into 3 D workpiece.The conventional machine processing such as mill are dug relative to turnning and milling, metal 3D prints and increases material manufacture as a kind of, various labyrinth can be manufactured, giving full play to the efficiency ratio of material, expand product originality & innovation space, designer is no longer by traditional handicraft and manufacturing resource limits, and reduce research and development of products innovation cost, shorten the R&D cycle, strengthen technique manufacturing capacity, thus have, at Aero-Space, biologic medical, the industry industrial circle such as mould, automobile making, the application prospect shown unique characteristics.
Fusion sediment, it is simply that by heat-fusible materials heating and melting, is squeezed by a trickle nozzle and gushes out, and nozzle moves under system control, and material has been deposited solid modelling by layering.The heat-fusible materials major part of application is thread now.Thread heat-fusible materials has very big limitation in application process.General structure workpiece is harsh to material performance requirement, and therefore thread hot melt material requirements meets two aspects and requires: one be form workpiece to material performance requirement, two is technology for making tobacco threds requirement.
Selective laser melting process and electron-beam melting forming technique are the important way that metal current part " 3D printing " manufactures.Metal Part by Selective Laser Melting rapid shaping technique is the advanced manufacturing technology integrating CAD/CAM, digital control technology, rapid shaping, becomes tradition and shapes the important supplement of method.Selective laser melting process can be directly produced out the metal parts of various complexity according to threedimensional model, and processing cost and time can be made to be effectively reduced, thus significantly shortening the R&D cycle of new product.
Current 3D printing technique compactness in metalwork forming process is inadequate, can there is certain defect, and such as pore, crackle, shrinkage cavity etc., workpiece accuracy is poor, and buckling deformation.These defects all can cause that the metal parts of final molding also has bigger gap in the performances such as machinery, electric, mechanics compared with the requirement of actual products；And it cannot be guaranteed that continue feed glibly, cause that the printing material having been heated to softening is easily hardened in feed pipe and block feed pipe, affect metalwork Forming Quality.
Chinese patent literature CN103160825A discloses a kind of utilization and synchronizes the method that double light beam laser improves metal 3D printing compactness, including: printing base, printing base plate are carried out pretreatment by a.；B. utilizing first laser and alloy powder to run according to desired guiding trajectory on printing base plate relies on the mode of multi-track overlapping, successively superposition to carry out 3D printing; and in print procedure, workpiece face and powder flow field being carried out inert gas shielding, first laser makes alloy powder melts form printable layer；C. utilizing the second laser trailed that 3D is printed the printable layer obtained and carry out remelting, the running orbit of second laser is identical with the running orbit of first laser, forms metalwork after printable layer successively superposition cooling.The method utilizes two road laser that printable layer is synchronized remelting, although decrease the defects such as the hole in 3D print procedure, air pocket, fire check, interface cracking, but compactness is uneven, and process is complicated, length consuming time, it does not have the densified that profiled member is follow-up.
CN103640222A discloses a kind of 3D printing device, includes feed pipe, feed component, heating element heater, the processor being connected with feed component and heating element heater and the controller being connected with processor；Feed pipe includes bringing-up section；Feed component is set to the printing material in feeding feed pipe；Heating element heater is set to the printing heating material in bringing-up section to softening；When controller is operated, processor sends feed-disabling signal to feed component and sends insulation signal to heating element heater；Feed component is according to the printing material in feed-disabling signal feed-disabling feed pipe；The printing material of softening is incubated by heating element heater according to insulation signal.This printing device does not have follow-up processing procedure, it is impossible to shaping workpiece is carried out compactness process.
Summary of the invention
The deficiency that this utility model exists for existing 3D printing technique, it is provided that the 3D that a kind of efficiency is high, profiled member compactness is good prints feed, fluxes and crystallization in motion leveling integrated apparatus.
3D of the present utility model prints feed, fluxes and crystallization in motion leveling integrated apparatus, by the following technical solutions:
This device, including bearing, feed bin, the first pressure feed mechanism, the second pressure feed mechanism, auxiliary heating head and assisting crystallisation leveling vibration head, feed bin, the first pressure feed mechanism, the second pressure feed mechanism, auxiliary heating head and assisting crystallisation leveling vibration head are installed on bearing；Feed bin, the first pressure feed mechanism and second force feed mechanism to be sequentially connected with；Second forces the discharge outlet of feed mechanism be connected to nozzle and discharge outlet is provided with heater；The bottom of bearing is positioned at the front and back of nozzle and is respectively arranged with auxiliary heating head and assisting crystallisation leveling vibration head.
Described first forces feed mechanism to be horizontally disposed with, it is possible to adopt feed screw.
Described second forces feed mechanism to be vertically arranged, it is possible to adopt screw extruder.
Described feed bin and second is forced to be provided with vibrator on feed mechanism, and described conveying vibrator adopts ultrasonic vibration apparatus.
Described heater and auxiliary heating head can adopt the various mode of heatings such as electrical heating, flame heating.
Described assisting crystallisation leveling vibration head, including supersonic generator, transducer, horn and pressure head, horn is connected with transducer, and pressure head is connected in horn.
Being provided with pressure mechanism between described assisting crystallisation leveling vibration head and bearing, pressure mechanism can adopt spring, hydraulic cylinder etc..
It is placed in the powder in feed bin, initially enter the first pressure feed mechanism, by feed screw by preliminary for powder closely knit after enter screw extruder, it is extruded into the front end exit place of screw extruder, powder is added heat fusing by the heater at front end exit place, gel material in softening colloidal enters nozzle ejection with pressure constant state, moves layer by layer deposition by the track set.In layer by layer deposition process, by the deposition heating material assisting heating head that lower floor is solidified so that the lower floor's material first solidified is micro-molten, it is ensured that melt mutually and phase counterdiffusion with the colloidal state material newly gushed out.Flatten, by assisting crystallisation, the material vibrating that nozzle is sprayed by vibration head, promote that crystal solidifies and crystal grain thinning, make material produce Plastic Flow, improve material curing efficiency, degree of compaction and surface smoothness.
This utility model is simple to operate, reliable and stable, easy to maintenance, improves the compactness of shaping workpiece in 3D print procedure, and shaping workpiece Coating combination is good；Do not need laser generator, it is to avoid material sputtering, it is ensured that deposition material initial phase, to shape, reduces with expected value biased error；Can reducing the necessary corresponding accessory relative to laser generator fusing, cost is substantially reduced simultaneously, and by the selection of corresponding component material, change in size and technique adjustment, it is possible to adapt to the fusion sediment of different types of dusty material.
Accompanying drawing explanation
Fig. 1 be this utility model 3D print feed, flux and crystallization in motion leveling integrated apparatus structural representation.
In figure: 1, feed bin, 2, blanking vibrator, 3, bearing, 4, feed screw, 5, conveying pipeline, 6, screw extruder, 7, motor, 8, conveying vibrator, 9, nozzle, 10, valve, 11, heater, 12, auxiliary heating head, 13, assisting crystallisation leveling vibration head, 14, pressure mechanism.
Detailed description of the invention
As shown in Figure 1,3D of the present utility model prints feed, fluxes and crystallization in motion leveling integrated apparatus, including feed bin 1, feed screw 4, screw extruder 6, heater 11, nozzle 9, auxiliary heating 12 and assisting crystallisation leveling vibration head 13, feed bin 1, feed screw 4, screw extruder 6, auxiliary heating 12 and assisting crystallisation leveling vibration head 13 may be mounted on bearing 3.The outlet of feed bin 1 is connected with the charging aperture of feed screw 4, and feed bin 1 is provided with blanking vibrator 2, makes material continuously enter feed screw 4 by the vibration of blanking vibrator 2, it is prevented that occur that feed interrupts or interrupted feed phenomenon.Blanking vibrator 2 can adopt ultrasonic vibration apparatus.Feed screw 4 is as the first positive feed mechanism, and screw extruder 6 is as the second positive feed mechanism, and feed screw 4 is horizontally disposed with, and screw extruder 6 is vertically arranged.The discharging opening of feed screw 4 is connected by conveying pipeline 5 with the charging aperture of screw extruder 6.The drive motor 7 of screw extruder 6 can adopt motor or servomotor, and the rotating speed changing drive motor can control powder extrusion capacity.The discharge outlet of screw extruder 6 is connected to nozzle 9, and discharge outlet is provided with heater 11.Screw extruder 6 is additionally provided with conveying vibrator 8.Conveying vibrator 8 can also adopt ultrasonic vibration apparatus.Heater 11 can adopt the various mode of heatings such as electrical heating, flame heating, the extruded stock making screw extruder 6 heats, becoming the gel material of softening colloidal, then sprayed by nozzle 9 under the extruding of powder up, the molding circuit needed for workpiece drops on substrate.
Conveying vibrator 8 has two Main Functions, and one is to powder vibratory compaction；Two is that the colloidal gel material softened is in a kind of solid-state and liquid admixture, the cavitation of ultrasonic activation, make gel feed liquid body at physical actions such as eddy current, make some local temporary transient negative pressuren zone forming local, thus causing the fracture of liquid or liquid-solid interface, form small cavitation bubbles.These small cavitation bubbles are in unsteady state, have the process of nascent, growth and rapid closing subsequently, when they rapid closings are vanished, produce a micro laser wave, make local have very big pressure.Cavitation phenomenon produces the Non-Linear Vibration of bubble and the burst pressure produced of vanishing, and supervenes many physically or chemically effects, the melting of powder quick material, reduces material viscosity, improve the mobility of material, it is prevented that material coheres nozzle 9 place.
The front being positioned at nozzle 9 in the bottom of bearing 3 is provided with auxiliary heating 12, and auxiliary heating 12 can adopt the various mode of heatings such as electrical heating, flame heating.One workpiece of fusion sediment is that layering realizes, and in order to reduce the sputtering of the softening colloidal state material gushed out from nozzle 9, controls to be at a kind of solid-state and liquid admixture by temperature, and after ejection, very short time is just curable.During deposited overlayers material, it is desirable to combine closely with lower floor material, but the energy that the colloidal state material of new ejection has is difficult to ensure that two-layer material is combined closely by melting mutually, spread, and therefore one auxiliary energy of this utility model offer meets requirement.By assisting the deposition heating material of 12 pairs of lower floor's solidifications of heating, make the lower floor's material first solidified micro-molten by auxiliary energy, it is ensured that to melt mutually and phase counterdiffusion with the colloidal state material newly gushed out.
The rear being positioned at nozzle 9 in the bottom of bearing 3 is provided with assisting crystallisation leveling vibration head 13.This assisting crystallisation leveling vibration head 13 adopts ultrasonic vibration apparatus, and including transducer, horn and leveling head, horn is connected with transducer, and leveling head is connected in horn.Transducer is connected with outside supersonic generator.In order to make assisting crystallisation leveling vibration head 13 to one pressure of substrate of effect, flattening at assisting crystallisation and be provided with pressure mechanism 14 between vibration head 13 and bearing 3, pressure mechanism 14 can adopt spring, hydraulic cylinder etc..
The material newly gushed out is fully cured needs a period of time, and spontaneous curing not only density is low and surface smoothness is poor, and therefore this utility model provides an assisting crystallisation leveling vibration head 13, to improve material curing efficiency, degree of compaction and surface smoothness.Promote that crystal solidifies and crystal grain thinning by ultrasound wave.The ultrasonic forming process that can speed up supersaturated solution nucleus by force, it is suppressed that crystal growth obtains thinner crystal grain evenly, makes colony, dendritic crystal broken and dispersion by ultrasonic cavitation, makes each crystal formation many new nucleus.The material just gushed out is in solid-liquid double-phase state, and by ultrasound wave to when having the fluid media effect of suspended particles, the fluid media of suspended particles vibrates together at the beginning, but the amplitude of the two and phase place all differ.The particle varied in size has different Relative Vibration speed, and particle mutually collides and bonds, and the volume and weight of particle cluster increases.The particle cluster becoming big can not follow sonic vibration motion, and does random motion, continues collision, bonds and grow up, finally settles down.
Assisting crystallisation leveling vibration head 13 also has auxiliary leveling effect.Under pressure, the substrate for Workpiece shaping being vibrated, make material table surface vibration, produce Plastic Flow, result makes the original microcosmic crest ironing of surface of the work, inserts trough, makes surface quality be improved.
It is placed in the mixed uniformly powder in feed bin 1, initially enter feed screw 4, by feed screw 4 by preliminary for powder closely knit rear entrance screw extruder 6, powder is further compacting under the effect of screw extruder 6, is squeezed into the lower end discharge outlet of screw extruder 6.Twice feed mechanism ensure that and not have fracture phenomenon.Powder is added heat fusing by the heater 11 of discharge outlet, and the gel material in softening colloidal enters nozzle 9 with pressure constant state and sprays.Under screw rod rotational pressure and ultrasonic activation combined effect, powder is extruded continually, moves by the track set and is rapidly completed moulding.In layer by layer deposition process, by assisting the deposition heating material of 12 pairs of lower floor's solidifications of heating so that the lower floor's material first solidified is micro-molten, it is ensured that melt mutually and phase counterdiffusion with the colloidal state material newly gushed out.Flatten, by assisting crystallisation, the material vibrating that nozzle 9 is sprayed by vibration head 13, improve material curing efficiency, degree of compaction and surface smoothness.
This utility model does not need laser generator, it is to avoid material sputtering, it is ensured that coating material initial relative shape, can reduce the necessary corresponding accessory relative to laser generator fusing simultaneously, and cost is substantially reduced.By to the selection of corresponding component material, change in size and technique adjustment thereof, it is possible to adapt to the fusion sediment of different types of dusty material.
Claims (4)
1. a 3D prints feed, fluxes and crystallization in motion leveling integrated apparatus, it is characterized in that, including bearing, feed bin, the first pressure feed mechanism, the second pressure feed mechanism, auxiliary heating head and assisting crystallisation leveling vibration head, feed bin, the first pressure feed mechanism, the second pressure feed mechanism, auxiliary heating head and assisting crystallisation leveling vibration head are installed on bearing；Feed bin, the first pressure feed mechanism and second force feed mechanism to be sequentially connected with；Second forces the discharge outlet of feed mechanism be connected to nozzle and discharge outlet is provided with heater；The bottom of bearing is positioned at the front and back of nozzle and is respectively arranged with auxiliary heating head and assisting crystallisation leveling vibration head.
2. 3D according to claim 1 prints feed, fluxes and crystallization in motion leveling integrated apparatus, it is characterized in that, described feed bin and second is forced to be provided with vibrator on feed mechanism.
3. 3D according to claim 2 prints feed, fluxes and crystallization in motion leveling integrated apparatus, it is characterized in that, described vibrator adopts ultrasonic vibration apparatus.
4. 3D according to claim 1 prints feed, fluxes and crystallization in motion leveling integrated apparatus, it is characterized in that, described assisting crystallisation leveling vibration head, including supersonic generator, transducer, horn and pressure head, horn is connected with transducer, and pressure head is connected in horn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521009507.XU CN205364544U (en) | 2015-12-07 | 2015-12-07 | 3D prints feed, fluxes and crystallization in motion flattening integrated device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521009507.XU CN205364544U (en) | 2015-12-07 | 2015-12-07 | 3D prints feed, fluxes and crystallization in motion flattening integrated device |
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| Publication Number | Publication Date |
|---|---|
| CN205364544U true CN205364544U (en) | 2016-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521009507.XU Expired - Fee Related CN205364544U (en) | 2015-12-07 | 2015-12-07 | 3D prints feed, fluxes and crystallization in motion flattening integrated device |
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| CN (1) | CN205364544U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105383060A (en) * | 2015-12-07 | 2016-03-09 | 济南鲁洋科技有限公司 | 3D printing device integrating material supplying, fluxing and crystal leveling assistance |
| CN106735239A (en) * | 2016-12-21 | 2017-05-31 | 重庆市万盛区顺达粉末冶金有限公司 | A kind of powder metallurgy forming device |
| CN106926452A (en) * | 2017-03-02 | 2017-07-07 | 西安交通大学 | A kind of multi-functional 3D printing head and its application method for material extrusion molding |
| CN107350472A (en) * | 2017-07-31 | 2017-11-17 | 沈阳工业大学 | A kind of ultrasonic 3D printing system and Method of printing for being used to prepare glassy metal part |
| CN110919819A (en) * | 2019-12-20 | 2020-03-27 | 华中科技大学 | Additive manufacturing equipment and method based on multi-field compounding |
| CN113329862A (en) * | 2018-12-19 | 2021-08-31 | 捷普有限公司 | 3D printing liquefier nozzle flexure for improved ironing |
-
2015
- 2015-12-07 CN CN201521009507.XU patent/CN205364544U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105383060A (en) * | 2015-12-07 | 2016-03-09 | 济南鲁洋科技有限公司 | 3D printing device integrating material supplying, fluxing and crystal leveling assistance |
| CN106735239A (en) * | 2016-12-21 | 2017-05-31 | 重庆市万盛区顺达粉末冶金有限公司 | A kind of powder metallurgy forming device |
| CN106926452A (en) * | 2017-03-02 | 2017-07-07 | 西安交通大学 | A kind of multi-functional 3D printing head and its application method for material extrusion molding |
| CN106926452B (en) * | 2017-03-02 | 2019-05-21 | 西安交通大学 | A kind of multi-functional 3D printing head and its application method for material extrusion molding |
| CN107350472A (en) * | 2017-07-31 | 2017-11-17 | 沈阳工业大学 | A kind of ultrasonic 3D printing system and Method of printing for being used to prepare glassy metal part |
| CN113329862A (en) * | 2018-12-19 | 2021-08-31 | 捷普有限公司 | 3D printing liquefier nozzle flexure for improved ironing |
| CN110919819A (en) * | 2019-12-20 | 2020-03-27 | 华中科技大学 | Additive manufacturing equipment and method based on multi-field compounding |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160706 Termination date: 20171207 |