CN106863798A - A kind of 3D printing shower nozzle - Google Patents
A kind of 3D printing shower nozzle Download PDFInfo
- Publication number
- CN106863798A CN106863798A CN201710083137.1A CN201710083137A CN106863798A CN 106863798 A CN106863798 A CN 106863798A CN 201710083137 A CN201710083137 A CN 201710083137A CN 106863798 A CN106863798 A CN 106863798A
- Authority
- CN
- China
- Prior art keywords
- head
- light
- shower nozzle
- outpours
- permeable
- 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
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
Abstract
The invention discloses a kind of 3D printing shower nozzle, including the head body with inner chamber, the head body bottom is fixed with that be coaxially disposed light tight outpours head and light-permeable outpours head, and light-permeable outpours head and is fixed on and light tight outpours a bottom；The inner chamber of the head body outpours head and light-permeable outpours the inner chamber of head and connects with light tight.The present invention is different with tradition photocuring print system, and nozzle structure is outpoured by the way of head is connected and communicates using light tight head and the light-permeable of outpouring, and constitute the nozzle structure outpours head.Under the uniform irradiation of ultraviolet light, cross-linkable solidifying.Light-permeable is entered into from photo-curing material to outpour in head, to last extrusion, photo-curing material completes partial cross-linked solidification in this process, inter-adhesive with last layer curing materials using oneself viscosity, until being printed as the 3D solid structure of complexity.
Description
Technical field
It is to be related to a kind of 3D printing shower nozzle specifically the present invention relates to a kind of printing head structure.
Background technology
Photocuring printing technique is to first pass through CAD design to go out three-dimensional entity model, is cut model using discrete program
Piece treatment, designs the scanning pattern of laser, with the motion of the data precise control laser scanner and lifting platform for producing.Then use
The laser of specific wavelength and intensity is irradiated to photo-curing material surface by the scanning pattern of design, is allowed to by point to line, by line to
Face consecutive solidification, makes one layer of resin solidification in the specific region of surface, and then lifting platform is in vertical direction one synusia of decline
Highly, another layer of liquid resin can be covered on cured layer, then carries out second layer scanning, solidify another aspect, the second cured layer
It is bonded in securely on previous cured layer, one 3D solid of the composition that is so layering.It is because existing photocuring is printed
System cost is high, operation and maintenance high cost, and the precision equipment of system is harsh to operating environment requirements, in medical application
On receive considerable restraint.
It is a kind of relatively inexpensive 3D printing method based on extruded type photocuring, its principle is by photocuring material by shower nozzle
Stockpile product is got up.Conventional method has two kinds at present, and one kind is solidification before printing, and one kind is printing solidify afterwards.Solidification before printing
It is in feeding shower nozzle front irradiation ultraviolet light by material.Printing solidify afterwards are that the after-applied solidification light of extruded material (is often ultraviolet light
Line), material is changed into solid-state from liquid, after being layering, realize that 3D is molded.The shortcoming of solidification is to be difficult hardening time before printing
Control, needs to apply in addition very big extrusion force and is just avoided that blocking shower nozzle, the shortcoming of printing solidify afterwards be low viscosity resin by
In good fluidity, molding effect is poor.Therefore a kind of design of the photocuring printing head of light-permeable is highly significant.
The content of the invention
It is an object of the invention to provide a kind of 3D printing shower nozzle, the photocuring print system of prior art presence is overcome
Cost is high, technical problem the drawbacks of operation and maintenance high cost, while the solidification in extrusion can be realized.
A kind of 3D printing shower nozzle, including the head body with inner chamber, the head body bottom are fixed with and are coaxially disposed
It is light tight outpour head and light-permeable outpours head, and light-permeable outpours head and is fixed on and light tight outpours a bottom；The shower nozzle sheet
The inner chamber of body outpours head and light-permeable outpours the inner chamber of head and connects with light tight.
Mechanism of the invention is different from traditional photocuring print system, and nozzle structure outpours head and light-permeable using light tight
The mode that head is connected and communicates is outpoured, constitute the nozzle structure outpours head.It is cross-linking solid under the uniform irradiation of ultraviolet light
Change.Light-permeable is entered into from photo-curing material to outpour in head, to last extrusion, photo-curing material completes part in this process
Crosslinking curing, it is inter-adhesive with last layer curing materials using oneself viscosity, until being printed as the 3D solid structure of complexity.
Preferably, the head body includes connecting seat and is fixed on the charging liquid storage pipe of connecting seat bottom, it is described
Connecting seat, charging liquid storage pipe outpour head and are integrated the metal structure of setting with light tight, such as can be made of stainless steel.Institute
Stating light-permeable and outpour head can be fabricated by by transparent hydrophobic composite.
Preferably, the light-permeable outpours head to be detachably mounted to described light tight outpour a bottom.Such as can use
Using being screwed, being fixed or the grafting of interference fit such as fixes at the mode, as further preferred, the light-permeable note
Grafting of lifting one's head is fixed on and described light tight outpours a bottom.Using the technical scheme, facilitate the light tight installation for outpouring head, tear open
Unload, clear up and change.
Preferably, the head body, light tight outpouring head and in light-permeable outpours and be coaxially arranged with the inner chamber of head
Shower nozzle.It is the material that will not produce photocuring that interior shower nozzle is assemblied in printing head inside configuration and constitutes in coaxial configuration, interior shower nozzle,
It is photo-curing material outside interior shower nozzle.When ultraviolet light uniform irradiation to light-permeable is outpoured, photo-curing material can solidified forming
And extrude, because interior shower nozzle outpours the liquid that ultraviolet light does not solidify so that the photo-curing material for finally printing is hollow knot
Structure.
Preferably, the interior shower nozzle top seals with connecting seat and fixes；It is the interior shower nozzle outer wall and head body, impermeable
Outer material cavity is constituted between light outpours head and light-permeable outpours the interior cavity wall of head, interior nozzle cavity constitutes interior material cavity；It is described
The charging aperture of outer material cavity is arranged on the charging liquid storage tube side wall, and the charging aperture of the interior material cavity is arranged on interior shower nozzle top
Portion.Using the technical scheme, photo-curing material charging aperture can be horizontal direction, and interior shower nozzle vertically staggers, and facilitates two shower nozzles
Charging.
Ultraviolet source is may also include in the present invention, certain ultraviolet source can also be independently of of the invention independent
Part.When ultraviolet source uniform irradiation light-permeable is outpoured, light source can be divided into movable ultraviolet source, fixed ultraviolet light light
Source.Movable ultraviolet source is to be placed on nozzle structure, and the light source can follow the direction for irradiating the ultraviolet light for coming can
Printing opacity outpours the change of a position and changes, it is ensured that irradiate come ultraviolet light all the time can uniform irradiation outpour head to light-permeable
On, and light intensity can be adjusted by adjusting movable ultraviolet source.Fixed ultraviolet source be directly installed on it is light tight
Outpour outside head, one is constituted with nozzle structure, maintain static, uniform irradiation outpours head to light-permeable all the time can to make ultraviolet light
On, and light intensity can be adjusted by adjusting fixed ultraviolet source.
Preferably, a light tight outer wall that outpours is for column construction.As further preferred, on the column construction
It is fixed with fixed ultraviolet source.
Preferably, the fixed ultraviolet source is " eight " font structure, big mouth down is set.Using the technical side
Case, it is ensured that light-permeable outpours head point and receives uniform illumination, improves the Forming Quality of printing.
In the present invention, it is light tight outpour head and outpour head with light-permeable link into an integrated entity, it is possible to communicate, be assembled into one it is complete
Whole injection head, near printing head agent structure be it is light tight outpour head, away from printing head agent structure is printing opacity
Head is outpoured, can so make the photo-curing material for printing be entity column structure.When the assembling of ultraviolet source uniform irradiation
When outpouring, due to ultraviolet light can not be irradiated to it is light tight outpour inside head, therefore the photo-curing material inside the injection head keeps
Original state, does not have to solidify.When ultraviolet lighting is mapped to light-permeable and outpours, because ultraviolet light can be outpoured through this
Head, therefore light-permeable starts solidification when outpouring the photo-curing material in head, until shaping.
The ultraviolet source used in the present invention is divided to two kinds of movable ultraviolet source and fixed ultraviolet source, all may be used
There is provided the uniform UV light of setting so that light-permeable outpours the photo-curing material crosslinking curing in head.Interior shower nozzle is assemblied in be beaten
Print nozzle structure Inner Constitution coaxial configuration, repeats photocuring print procedure, can print hollow tubular structure.Due to be
Shower nozzle extrude when solidified, hardening time is controllable, and the design can avoid traditional photocuring print system cost high, using with
The drawbacks of maintenance cost is too high, the drawbacks of also solving the preceding solidification of shower nozzle extruded type printing and print solidify afterwards, expands in medicine
Learn, the range of application of the aspect such as biomedicine.
The present invention outpours shower nozzle using light-permeable, under the uniform irradiation of ultraviolet light, oneself viscosity is increased in advance, opens
Beginning crosslinking curing.Light-permeable is entered into from photo-curing material to outpour in head, to last extrusion, photo-curing material is in this process
Partial cross-linked solidification is completed, it is inter-adhesive with last layer curing materials using oneself viscosity, until the three-dimensional for being printed as complexity is real
Body structure.
Advantages of the present invention mainly has：
Can outpour photo-curing material i.e. formable.The structure using it is light tight outpour head and outpour head with light-permeable connect into
Integrally, it is possible to communicate, a complete injection head is assembled into, when the assembling of ultraviolet source uniform irradiation is when outpouring, by
In ultraviolet light can not be irradiated to it is light tight outpour inside head, therefore photo-curing material inside the injection head keeps original state, does not have
Have and solidify.When ultraviolet lighting is mapped to light-permeable and outpours, because ultraviolet light can outpour head through this, therefore light-permeable is noted
Lift one's head interior photo-curing material when start solidification, until shaping.The photo-curing material for printing can be so set to be entity column
Structure.
Into hollow tubular structure by can outpouring photo-curing material.Interior shower nozzle is assemblied in printing head inside configuration and constitutes together
Axle construction.When ultraviolet light uniform irradiation to light-permeable is outpoured, photo-curing material can solidified forming simultaneously extrude, due to interior spray
Head outpours the liquid that ultraviolet light is unable to crosslinking curing so that the photo-curing material for finally printing is hollow structure.
Ultraviolet source can be selected according to varying environment, not high to environmental requirement, and adaptability is good.Ultraviolet source has
Movable ultraviolet source, fixed ultraviolet source are selective.Movable ultraviolet source is to be placed on nozzle structure, the light
Source can make to irradiate the direction of the ultraviolet light for coming, and and then light-permeable outpours the change of a position and changes, it is ensured that irradiate what is come
Ultraviolet light all the time can uniform irradiation outpoured on head to light-permeable.Fixed ultraviolet source is to be directly installed on light tight outpouring
Head is outside, and one is constituted with nozzle structure, maintains static, and uniform irradiation is outpoured on head to light-permeable all the time can to make ultraviolet light.
Two kinds of light sources are not high to environmental requirement, and adaptability is good.
Simple structure is compact.Connecting seat is connector with charging liquid storage pipe, facilitates the nozzle structure to be assemblied in printer
On, the light tight head that outpours is connected and communicates with charging liquid storage pipe, light-permeable outpour head connect it is light tight outpour head, and therewith
Communicate, movable ultraviolet source and fixed ultraviolet source provide the uniform UV light for setting, and interior shower nozzle is assemblied in be beaten
Print nozzle structure Inner Constitution coaxial configuration.
Brief description of the drawings
Fig. 1 a are a kind of 3D printing nozzle structure schematic diagram of the invention.
Fig. 1 b are the cross section structure diagram of Fig. 1 a.
Fig. 2 is a kind of 3D printing nozzle structure of the invention and movable ultraviolet source schematic diagram.
Fig. 3 a are a kind of 3D printing nozzle structure of the invention and fixed ultraviolet source schematic diagram.
Fig. 3 b are the cross section structure diagram of Fig. 3 a.
Fig. 4 a are that a kind of 3D printing nozzle structure of the invention and interior shower nozzle are assembled into Coaxial nozzle schematic diagram.
Fig. 4 b are the cross section structure diagram of Fig. 4 a.
In figure：1 is connecting seat, and 2 is charging liquid storage pipe, and 3 outpour head for light tight, and 4 outpour head for light-permeable, and 5 is movable
Formula ultraviolet source, 6 is fixed ultraviolet source, and 7 is interior shower nozzle.
Specific embodiment
As illustrated in figs. 1A and ib, a kind of 3D printing nozzle structure, including connecting seat 1, feeds liquid storage pipe 2, light tight note
Lift one's head 3, light-permeable outpours first 4.
As illustrated in figs. 1A and ib, printing head top is connecting seat 1, and connection charging liquid storage pipe 2 in the bottom of connecting seat 1 connects
Joint chair 1 and the inner space for feeding liquid storage pipe 2.Simultaneously connecting seat 1 with charging liquid storage pipe 2 be connector, which is provided with link slot,
Engaging lug, connection screw thread, connecting hole, connection card etc. attachment structure, facilitate the nozzle structure to assemble on a printer.
It is light tight outpour first 3 and outpour first 4 with light-permeable link into an integrated entity, and two inner chambers for outpouring head communicate, and are assembled into
One complete injection head is assemblied in charging liquid storage pipe 2 lower end, near printing head agent structure be it is light tight outpour first 3,
Away from printing head agent structure is that printing opacity outpours first 4, at the same it is light tight outpour first 3 with light-permeable outpour first 4 inner chamber simultaneously
With connecting seat 1 and the inner space for feeding liquid storage pipe 2.When the assembling of ultraviolet source uniform irradiation is when outpouring, due to ultraviolet
Light can not be irradiated to it is light tight outpour inside first 3, therefore photo-curing material inside the injection head keeps original state, without occurring
Solidification.When ultraviolet lighting is mapped to light-permeable and outpours first 4, because ultraviolet light can outpour head through this, therefore light-permeable outpours head
Start solidification during interior photo-curing material, until shaping.
Connecting seat 1, charging liquid storage pipe 2 and light tight outpour first 3 and be typically metal material, and be integrated setting.And can
Printing opacity is outpoured first 4 and is fabricated by from transparent hydrophobic composite, and it can outpour first 3 realization using various ways with light tight
It is fixed, such as can using being screwed by the way of, the mode of the mode that engages or interference fit fixes.
In the present embodiment, we realize that light-permeable outpours first 4 and relatively light tight outpours first 3 by the way of interference fit
It is fixed.Light-permeable is installed using interference mode and outpours first 4 while being also convenient for installation and replacing that light-permeable outpours first 4.It is actual
During installation, light-permeable is directly outpoured first 4 and inserts light tight outpouring in first 3.In addition, using this fixed form, liquid
Printed material from it is light tight outpour first 3 enter into light-permeable outpour first 4 top be in the light tight part outpoured in first 3,
Will not solidify, at the same formed stabilization material stream, the material stream enter further into light-permeable outpour first 4 in impermeable
Light outpours the part outside first 3, i.e., real light transmission part starts solidification；Using this structure, liquid material is also prevented from impermeable
Light outpour first 3 and light-permeable outpour it is first 4 handing-over position block.
It is as shown in Figure 2 a kind of preferred technical scheme of the invention, ultraviolet source uses movable ultraviolet source
5, when ultraviolet source uniform irradiation light-permeable is outpoured, movable ultraviolet source 5 is to be placed on nozzle structure, and the light source can
And then light-permeable outpours the change of a position and changes to make to irradiate the direction of the ultraviolet light for coming, it is ensured that irradiate come ultraviolet
Light all the time can uniform irradiation outpoured on first 4 to light-permeable, and light intensity can be adjusted by adjusting movable ultraviolet source.
As shown in Figure 3 a and Figure 3 b shows, it is another preferred technical scheme of the invention, it is light tight to outpour in the present embodiment
First 3 outer wall is cylindrical side wall.Ultraviolet source uses fixed ultraviolet source 6, and fixed ultraviolet source 6 is inverted
Bowl-type structure, be fixed on it is light tight outpour first 3 outer wall.When ultraviolet source uniform irradiation light-permeable is outpoured, fixed purple
Outer radiant 6 be directly installed on it is light tight outpour outside first 3, with nozzle structure constitute one, maintain static, ultraviolet light can be made
All the time uniform irradiation is outpoured on first 4 line to light-permeable, and can adjust light intensity by adjusting fixed ultraviolet source.It is fixed
The top of ultraviolet source 6 is retainer ring；Fixed ultraviolet source 6 can be by being embodied in various ways being outpoured outside first 3 with light tight
The fixation of wall, such as can use and set bolt in the fixed ring-side wall in the top of fixed ultraviolet source 6, when fixed, directly
Connect screwed in place bolt so that bolt dieback outpours first 3 outer wall light tight, realizes both interfix；Or,
Can by retainer ring inwall and it is light tight outpour first 3 outer wall and be processed into the helicitic texture that can cooperate, directly pass through screw thread knot
Structure realizes both fixations.
As shown in figures 4 a and 4b, it is the third preferred technical scheme of the invention, connecting seat 1 feeds liquid storage pipe 2,
It is light tight outpour first 3 and light-permeable outpour and be additionally provided with first 4 interior shower nozzle, interior shower nozzle 7 is assemblied in printing head inside configuration composition
Coaxial configuration, is interior material cavity, the outer wall of interior shower nozzle 7 and charging liquid storage pipe 2 in interior shower nozzle 7, light tight to outpour first 3 and light-permeable note
Lift one's head and outer material cavity constituted between 4 outer walls, can be used between the top of interior shower nozzle 7 and connecting seat 1 engagement thread, welding manner or
The modes such as snap fit seal fixation；The discharge hole for discharge that photo-curing material passes through outer material cavity, the charging aperture of outer material cavity sets
Put in the charging side wall of liquid storage pipe 2, it is horizontal direction, and interior shower nozzle vertically staggers.When ultraviolet light uniform irradiation to light-permeable
When outpouring first 4, photo-curing material meeting solidified forming is simultaneously extruded, because interior shower nozzle outpours the liquid that ultraviolet light is unable to crosslinking curing
Body so that the photo-curing material for finally printing is hollow structure.
Claims (9)
1. a kind of 3D printing shower nozzle, including the head body with inner chamber, it is characterised in that the head body bottom is fixed with
Be coaxially disposed it is light tight outpour head and light-permeable outpours head, and light-permeable outpours head and is fixed on and light tight outpours a bottom；Institute
State the inner chamber of head body and outpour head and light-permeable outpours the inner chamber of head and connects with light tight.
2. 3D printing shower nozzle according to claim 1, it is characterised in that the head body includes connecting seat and fixation
In the charging liquid storage pipe of connecting seat bottom, the connecting seat, charging liquid storage pipe outpour head and are integrated the gold of setting with light tight
Category structure.
3. 3D printing shower nozzle according to claim 1, it is characterised in that the light-permeable outpours head and is detachably mounted to
It is described light tight to outpour a bottom.
4. 3D printing shower nozzle according to claim 1, it is characterised in that the head body, the light tight head and can of outpouring
Printing opacity is outpoured and be coaxially arranged with the inner chamber of head interior shower nozzle.
5. 3D printing shower nozzle according to claim 4, it is characterised in that the interior shower nozzle top is solid with connecting seat sealing
It is fixed；The outer wall and the head body of the interior shower nozzle, light tight outpour head and light-permeable outpours structure between the interior cavity wall of head
Into outer material cavity, interior nozzle cavity constitutes interior material cavity；The charging aperture of the outer material cavity is arranged on the charging liquid storage tube side
Wall, the charging aperture of the interior material cavity is arranged on interior shower nozzle top.
6. the 3D printing shower nozzle according to any one of Claims 1 to 5, it is characterised in that described light tight to outpour an outer wall
It is column construction.
7. 3D printing shower nozzle according to claim 6, it is characterised in that also including movable ultraviolet source.
8. 3D printing shower nozzle according to claim 6, it is characterised in that be fixed with the column construction fixed ultraviolet
Radiant.
9. 3D printing shower nozzle according to claim 8, it is characterised in that the fixed ultraviolet source is " eight " font
Structure, big mouth down is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710083137.1A CN106863798B (en) | 2017-02-16 | 2017-02-16 | A kind of 3D printing spray head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710083137.1A CN106863798B (en) | 2017-02-16 | 2017-02-16 | A kind of 3D printing spray head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106863798A true CN106863798A (en) | 2017-06-20 |
| CN106863798B CN106863798B (en) | 2019-03-01 |
Family
ID=59166226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710083137.1A Active CN106863798B (en) | 2017-02-16 | 2017-02-16 | A kind of 3D printing spray head |
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| Country | Link |
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| CN (1) | CN106863798B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107127971A (en) * | 2017-06-21 | 2017-09-05 | 西安交通大学 | A kind of photocuring extrusion shower nozzle in situ |
| CN110101448A (en) * | 2019-04-22 | 2019-08-09 | 西安交通大学 | A kind of photocuring hydrogel conveying device for Minimally Invasive Surgery and Method of printing in situ |
| CN111169008A (en) * | 2020-03-03 | 2020-05-19 | 曹林 | 3D printing nozzle |
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| CN205395180U (en) * | 2016-03-01 | 2016-07-27 | 深圳马顿科技有限公司 | 3D printing pen |
| WO2016125138A2 (en) * | 2015-02-02 | 2016-08-11 | Massivit 3D Printing Technologies Ltd | A curing system for printing of 3d objects |
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| US20150086728A1 (en) * | 2013-09-25 | 2015-03-26 | Hon Hai Precision Industry Co., Ltd. | Machining system and method for machining microstructure on light guide plate |
| CN105328901A (en) * | 2014-07-30 | 2016-02-17 | 北京数码视讯科技股份有限公司 | 3D printing method and device and 3D printer |
| WO2016125138A2 (en) * | 2015-02-02 | 2016-08-11 | Massivit 3D Printing Technologies Ltd | A curing system for printing of 3d objects |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107127971A (en) * | 2017-06-21 | 2017-09-05 | 西安交通大学 | A kind of photocuring extrusion shower nozzle in situ |
| CN110101448A (en) * | 2019-04-22 | 2019-08-09 | 西安交通大学 | A kind of photocuring hydrogel conveying device for Minimally Invasive Surgery and Method of printing in situ |
| CN110101448B (en) * | 2019-04-22 | 2020-10-27 | 西安交通大学 | Photocuring hydrogel conveying device for minimally invasive surgery and in-situ printing method |
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| Publication number | Publication date |
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| CN106863798B (en) | 2019-03-01 |
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