CN107415246A - A kind of blender of the 3D printing head based on boat hair principle - Google Patents
A kind of blender of the 3D printing head based on boat hair principle Download PDFInfo
- Publication number
- CN107415246A CN107415246A CN201710732707.5A CN201710732707A CN107415246A CN 107415246 A CN107415246 A CN 107415246A CN 201710732707 A CN201710732707 A CN 201710732707A CN 107415246 A CN107415246 A CN 107415246A
- Authority
- CN
- China
- Prior art keywords
- blender
- diversion column
- inner casing
- nozzle
- section bar
- 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.)
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Classifications
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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
Abstract
The present invention relates to a kind of blender of the 3D printing head based on boat hair principle, it is characterised in that：Blender inner casing one end is the opening that section bar enters, and the connected nozzle of the other end forms the housing of blender；Location mid-shaft in housing is provided with diversion column, feed set is provided between diversion column and blender inner casing, outside diversion column and feed set inwall is regular concavo-convex wave structure, and both according to convex to convex, it is recessed that recessed principle is cooperated, the varying-arca channel that convection body energy local losses produces vortex is formed, the head of diversion column 4 is flight, is formed between diversion column and nozzle as the through hole with flight of section bar passage.The present invention produces vortex using varying-arca channel convection body energy local losses, it can make to be sufficiently mixed from the melted material that melting pressue device flows into, it is more uniformly distributed so as to mix material mixing, the pure color of uniform in color, and guide vane makes section bar be sprayed after producing rotation through nozzle atomization, the atomizing effect at shower nozzle is effectively lifted.
Description
Technical field
The invention belongs to three-dimensionally shaped technical field, is related to a kind of blender of the 3D printing head based on boat hair principle,
Suitable for mechanical arm.
Background technology
The three-dimensionally shaped technologies of 1.FDM：Melting extrusion shaping (FDM) is a kind of widely used three-dimensionally shaped technology, its work
It is by after material heating and melting as principle, is extruded by material extrusion mechanism from printhead and rapid cooled and solidified is molded, this skill
Art is being confined to the material shaping of single color using early stage, so the color category of printing object is dull, color selection by
The limitation of material color.With the continuous development of technology, later people develop the melting to be worked using three primary colors mixing principle
Extruded type colour 3D printing head, by three kinds of colors of red, green, blue distribution come reconcile out multiple color melted material and by its
Extrusion molding.In current searchable patent or document, distributing the principle for producing multiple color or structure for three primary colors has
More description, but the higher colored 3D printer of three primary colors mixing color matching quality, original among these are had no in the market
Therefore one is when being applied to because of use three primary colors color theory in melting extrusion formula 3D printing, due to melting 3D printing material
Toughness is higher, and the higher secondary colors of effect can not be obtained as gouache color, so the object color printed is mostly
Random uncontrollable broken colour, and can not accurately control the object color printed.It is intended to print using three primary colors color theory
Strict object is controlled remarkably, it is necessary to carrying out abundant batch mixing after three primary colors material molten, is made three primary colors color matching full and uniform, and is showed
Do not realize the device of this function really in the printhead of melting formula 3D printer, correlation technique, which is needed badly, to be broken through.
2.3D printing head：Recently, Harvard University scientist devises a kind of new more file printing heads, can mix
And print concentration, have viscoelastic " ink " material, in print procedure can simultaneously control composition and geometry.Printhead
The nozzle mixed by a kind of active, being switched fast, changes material composition in operation.
This research is by Harvard University's Poulsen engineering and applied science institute biomimetic engineering professor Zhan Nifu Lewis
It is responsible for.Personnel introduce according to the study, and the basis for printing multiple material is mixing complex fluid, and most of method was passive in the past,
Allow the diffusion mixing of two strands of liquid, be difficult to prove effective especially in the case where volume is small, the time is short to high viscosity liquid.Then he
Devise it is a kind of actively mix more file printing heads, have a kind of rotatable propeller in micro-nozzle, can effectively mix Various Complex
Liquid.But because nozzle internal space is limited, this nozzle structure is complex, and cost of manufacture is higher.
3. covering layer spraying technology：Do not have higher efficiency, and precision in view of traditional printing type that successively stacks
It cannot be guaranteed that therefore North China Electric Power University researcher propose it is a kind of from inside to outside, based on covering layer spraying theory 3D beat
Algorithm is printed, first carries out the making of overall profile, then is finished on its surface.
Its main flow be (1) after print command is received, analysis calculate object approximate size profile；(2) use and beat
Plastic substance is melted into liquid atomization and is sprayed on formation bulk structure on mold pallet by print machine shower nozzle, and carries out curing process,
" kernel " of wanted printing objects is obtained with this；(3) continuing the atomizing spraying of big flow to " kernel " after solidification makes it
It is fully wrapped around then to carry out curing process in new liquid material, the roughing process of covering layer spraying is circulated with this, it is final to obtain
The general profile of model；(4) fining-off on surface is carried out by the low discharge liquid section bar sprayed again, finally gives what is printed
Object.
Thin mode can save in theory after this elder generation is thick successively stacks the time used, and effectively improves printing essence
Degree, at the same can be added in raw material metallic element formation mixing material, with this improve printing species and printer model it is firm
Degree.But the difficulty that this method runs into practice is to be difficult to find that corresponding printing head so that spraying section bar can be big
Free switching between the atomizing spraying of flow and the fine design of low discharge.
The content of the invention
Technical problems to be solved
In order to avoid the shortcomings of the prior art, the present invention proposes a kind of batch mixing of the 3D printing head based on boat hair principle
Device, solve the problems, such as that the object color that existing melting formula colour 3D printing head prints is not pure, and existing 3D printing head is difficult
The problem of with the free switching between the atomizing spraying of big flow and the fine design of low discharge, it is the reality of covering layer spraying technology
A technical scheme is now provided.
Technical scheme
A kind of blender of the 3D printing head based on boat hair principle, it is characterised in that including blender inner casing 1, Electromagnetic Heating
Coil 5, feed set 3, diversion column 4, flight 7 and nozzle 8；The one end of blender inner casing 1 is the opening that section bar enters, and the other end is solid
Even nozzle 8 forms the housing of blender；Location mid-shaft in housing is provided with diversion column 4, is connected, led with housing by link 6
Feed set 3 is provided between fluidization tower 4 and blender inner casing 1, mutual space is section bar passage；The head of diversion column 4 is spiral shell
Blade 7, formed between diversion column 4 and nozzle 8 as the through hole with flight of section bar passage；The outside of blender inner casing 1 is provided with
Electromagnetic heating coil 5；The outside of the diversion column 4 and the inwall of feed set 3 are the concavo-convex wave structure of rule, and both are according to convex right
It is convex, it is recessed that recessed principle is cooperated, form the varying-arca channel that convection body energy local losses produces vortex.
The outside of electromagnetic heating coil 5 is provided with electromagnetic heating coil shell, is closely connected at 5 with blender inner casing 1 jointly
In magnet coil is wrapped in.
Beneficial effect
A kind of blender of 3D printing head based on boat hair principle proposed by the present invention, utilizes varying-arca channel convection current physical efficiency
Measure local losses and produce vortex, can make to be sufficiently mixed from the melted material that melting pressue device flows into, so as to mix
Material mixing is more uniformly distributed, the pure color of uniform in color, and that innovates inserts guide vane, can make under larger pressure
Section bar sprays after producing rotation through nozzle atomization, effectively lifts the atomizing effect at shower nozzle.By the pressure for regulating and controlling porch section bar
Power, nozzle can be made freely to be changed between spraying liquid and low discharge liquid.It is a kind of low cost, based on hydrodynamic methods
With the 3D printing head blender of boat hair engineering practice.
The present invention utilizes high-viscosity fluid by will carry out multistage continuous eddy current type batch mixing after three primary colors material pressurizing melting
Local losses act on cause material occur acutely blending, effectively improve the uniform level of material, make the color of product purer
Just.
In addition, the presence of the guide vane of innovative design of the present invention can improve the atomizing effect of material and realize big
The goal of the invention of free switching between the atomizing spraying of flow and the fine design of low discharge, it is the landing of covering layer spraying technology
Provide a technical scheme.
The production method of the present invention is simple, and cost is relatively low, effectively reduces printing cost, the innovation for the wound visitor that is particularly suitable for use in
Practice and the product beforehand research of miniaturization.
Brief description of the drawings
Fig. 1：Blender profile
1- blender inner casings, 2- electromagnetic heating coil shells, 3- feed sets, 4- diversion columns, 5- electromagnetic heating coils, 6- connect
Connect frame, 7- flights, 8- nozzles.
Fig. 2：The front view and top view of guide vane
Fig. 3：In guide vane under different pressures high-viscosity fluid injection situation
Embodiment
In conjunction with embodiment, accompanying drawing, the invention will be further described：
The present invention proposes a kind of blender of melting formula colour 3D printing head, and element is as shown in profile 1：
The annexation of each several part of the present invention is：The one end of blender inner casing 1 is the opening that section bar enters, and the other end, which is connected, to be sprayed
Mouth 8 forms the housing of blender；Location mid-shaft in housing is provided with diversion column 4, is connected by link 6 with housing, link 6
Original place is fixed on forming tight fit at blender inner casing 1, nozzle 8；Link 6 is provided with through hole, and section bar can be by runner
Through entering the through hole of the flight 7 of band 7 at 6, and link is responsible for playing diversion column 4 and flight 7 fixed and supporting role.Water conservancy diversion
Feed set 3 is provided between post 4 and blender inner casing 1, mutual space is section bar passage；The head of diversion column 4 is spiral
Piece 7, formed between diversion column 4 and nozzle 8 as the through hole with flight of section bar passage；
The outside of the diversion column 4 and the inwall of feed set 3 for rule concavo-convex wave structure, and both according to convex to convex, it is recessed
Recessed principle is cooperated, forms the varying-arca channel that convection body energy local losses produces vortex.
The outside of blender inner casing 1 is provided with electromagnetic heating coil 5；The outside of electromagnetic heating coil 5 is provided with electromagnetic heating coil
Shell, closely it is connected with blender inner casing 1 in magnet coil at 5 is wrapped in jointly.
The porch of blender inner casing 1 and the end of diversion column 4, which are formed, accommodates the opening that section bar enters；Electromagnetic heating coil 5 is negative
The heating to enclosure interior is blamed, plays the effect of insulation；Electromagnetic heating coil shell 2 is closely connected jointly with blender inner casing 1
Place's magnet coil is wrapped in interior.
Workflow is：Blender inner casing 1 and diversion column 4 form opening and accept the section bar for coming from melting pressue device,
The three primary colors section bar for fully having melted and having been pressurizeed is characterized as, then into feed set 3, continuous variable cross section between diversion column 4
Cavity, due to the rapid change in section, the energy local losses of vortex strip is produced by high viscosity fluid, is occurred circumferential violent
Blending fusion, with reach increase mixed effect purpose.
Also, electromagnetic heating coil shell 2, the part of electromagnetic heating coil 5 collectively constitute heating mantle, by Electromagnetic Heating line
Circle is to the section bar continuous heating in runner, and battery coil has excellent insulating properties and thermogenic effects, and heating is fast, and the thermal efficiency is high
Advantage.Cause runner to block so that section bar will not cool due to energy loss, effectively improve effect and the printing of section bar mixing
Quality.The housing of electromagnetic heating coil shell 2 uses insulation material, by magnet coil and section bar conveyance conduit it is fully wrapped around including,
Prevent thermal loss or personnel from scalding, batch mixing part can also be made to keep aesthetic in appearance.
Section bar passes through after being sufficiently mixed to be sprayed by the through hole with flight 7 by the spout of nozzle 8, and rotary-type guide vane is deposited
With shape design section bar can be made to produce rotation, so as to which the pressure energy of fluid is converted into kinetic energy, make high viscous liquid section bar
Produce whirlpool.Under the heavy traffic condition that pressue device provides larger pressure, section bar passes through the jet hole of the end of nozzle 8, whirlpool
Eliminate, due to " pressure injection atomization " principle, pressure atomization is formed taper spraying and is gone out.And provide smaller pressure in pressue device
In the case of the low discharge of power, whirlpool can not produce so that section bar remains as the outflow of low discharge continuous liquid.
Claims (3)
1. a kind of blender of the 3D printing head based on boat hair principle, it is characterised in that including blender inner casing (1), Electromagnetic Heating
Coil (5), feed set (3), diversion column (4), flight (7) and nozzle (8)；Blender inner casing (1) one end is what section bar entered
Opening, the other end be connected nozzle (8) formation blender housing；Location mid-shaft in housing is provided with diversion column (4), passes through connection
Frame (6) is connected with housing, and feed set (3) is provided between diversion column (4) and blender inner casing (1), and mutual space is type
Material passage；The head of diversion column (4) is flight (7), is formed between diversion column (4) and nozzle (8) as the band spiral shell of section bar passage
The through hole of blade；The outside of blender inner casing (1) is provided with electromagnetic heating coil (5)；Diversion column (4) outside and feed set
(3) inwall for rule concavo-convex wave structure, and both according to convex to convex, it is recessed that recessed principle is cooperated, form convection body
Energy local losses produces the varying-arca channel of vortex.
2. the blender of the 3D printing head according to claim 1 based on boat hair principle, it is characterised in that：Electromagnetic heating coil
(5) it is outside to be provided with electromagnetic heating coil shell (2), closely it is connected with blender inner casing (1) and is jointly wrapped in place's magnet coil
It is interior.
3. the blender of the 3D printing head according to claim 1 or claim 2 based on boat hair principle, it is characterised in that：The electromagnetism
Heating coil shell (2) uses insulation material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710732707.5A CN107415246A (en) | 2017-08-24 | 2017-08-24 | A kind of blender of the 3D printing head based on boat hair principle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710732707.5A CN107415246A (en) | 2017-08-24 | 2017-08-24 | A kind of blender of the 3D printing head based on boat hair principle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107415246A true CN107415246A (en) | 2017-12-01 |
Family
ID=60433921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710732707.5A Pending CN107415246A (en) | 2017-08-24 | 2017-08-24 | A kind of blender of the 3D printing head based on boat hair principle |
Country Status (1)
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| CN (1) | CN107415246A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108454094A (en) * | 2018-04-11 | 2018-08-28 | 北华大学 | A kind of 3D printing dyeing extruder head |
| CN109333999A (en) * | 2018-11-20 | 2019-02-15 | 青岛科技大学 | A kind of thermosetting polymer increasing material manufacturing device and method |
| CN109822885A (en) * | 2019-02-26 | 2019-05-31 | 江西省科学院能源研究所 | A kind of 3D printing ejecting device convenient for plastic molten melt conveying |
| CN110355993A (en) * | 2019-06-26 | 2019-10-22 | 西安交通大学 | One kind being based on composite material atomizing 3D printing device and method |
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| CN103895228A (en) * | 2014-03-31 | 2014-07-02 | 王利民 | Colored 3D (Three Dimensional) printing equipment using fused deposition modeling method |
| CN204107495U (en) * | 2014-08-01 | 2015-01-21 | 北京科技大学 | A kind of retaining device about stirred tank |
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| CN106863774A (en) * | 2017-04-12 | 2017-06-20 | 武汉科技大学 | A kind of colour mixture prints miniature extrusion shower nozzle |
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| CN108136664A (en) * | 2015-10-29 | 2018-06-08 | 雷神公司 | For adding the material deposition system of manufacture |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103895228A (en) * | 2014-03-31 | 2014-07-02 | 王利民 | Colored 3D (Three Dimensional) printing equipment using fused deposition modeling method |
| CN204107495U (en) * | 2014-08-01 | 2015-01-21 | 北京科技大学 | A kind of retaining device about stirred tank |
| CN108136664A (en) * | 2015-10-29 | 2018-06-08 | 雷神公司 | For adding the material deposition system of manufacture |
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| CN106863774A (en) * | 2017-04-12 | 2017-06-20 | 武汉科技大学 | A kind of colour mixture prints miniature extrusion shower nozzle |
| CN207172765U (en) * | 2017-08-24 | 2018-04-03 | 西北工业大学 | 3D printing head with variable cross-section channels |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108454094A (en) * | 2018-04-11 | 2018-08-28 | 北华大学 | A kind of 3D printing dyeing extruder head |
| CN109333999A (en) * | 2018-11-20 | 2019-02-15 | 青岛科技大学 | A kind of thermosetting polymer increasing material manufacturing device and method |
| CN109333999B (en) * | 2018-11-20 | 2023-12-29 | 青岛科技大学 | Thermosetting polymer additive manufacturing device and method |
| CN109822885A (en) * | 2019-02-26 | 2019-05-31 | 江西省科学院能源研究所 | A kind of 3D printing ejecting device convenient for plastic molten melt conveying |
| CN110355993A (en) * | 2019-06-26 | 2019-10-22 | 西安交通大学 | One kind being based on composite material atomizing 3D printing device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20171201 |
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| WD01 | Invention patent application deemed withdrawn after publication |