CN106042375A - Digital jet sprayer for additive manufacturing - Google Patents
Digital jet sprayer for additive manufacturing Download PDFInfo
- Publication number
- CN106042375A CN106042375A CN201610359700.9A CN201610359700A CN106042375A CN 106042375 A CN106042375 A CN 106042375A CN 201610359700 A CN201610359700 A CN 201610359700A CN 106042375 A CN106042375 A CN 106042375A
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- China
- Prior art keywords
- nozzle
- actuator
- micro
- additive manufacturing
- increasing
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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 relates to the technical field of additive manufacturing, in particular to a digital jet sprayer for additive manufacturing. A miniature nozzle is mounted in a clamping seat, the front end of the miniature nozzle is positioned by a lower positioning sleeve in the axial and radial directions, and a locking sleeve is used for clamping the miniature nozzle in the clamping seat. The clamping seat is glued to a piezoelectric actuator which is glued to a seat plate and controlled by an external control unit. An upper positioning sleeve is arranged in a hole of the seat plate and used for assisting in positioning and supporting the miniature nozzle. According to the digital jet sprayer, external macro driving force is used for driving the pipe wall to reciprocate, shearing viscous force of a micro-flow boundary layer is used for transmitting the external macro driving force and energy, and digital jet of trace of liquid or powder is achieved. The digital jet sprayer can be used for uneven jet of the same slice layer in additive manufacturing, a high frequency and small jet amount are adopted in a boundary area, large jet amount is adopted in the middle area, and thus molding efficiency and molding precision are synchronously improved, and additive manufacturing of uneven-gradient materials is achieved.
Description
Technical field
The present invention relates to increase material manufacturing technology field, a kind of for increasing the digitized injection shower nozzle that material manufactures.
Background technology
Increasing material manufacture is to utilize computer that CAD model is separated into series two-dimensional section figure, then root in one direction
It is believed that breath successively surface piles up the fast method of molding.
In order to reduce slicer error, generally take less slice thickness, improved the biography of formed precision by thinning lift height
System method does not only result in shaping efficiency and significantly declines, and the reduction of moulded products mechanical strength is also greatly improved the technology of molding
Difficulty.Formed precision, speed, cost seriously govern the application popularization increasing material manufacture forming method.
Improve the shaping efficiency that causes decline problem to solve formed precision, it is achieved shaping efficiency and formed precision same
Step promotes, it would be highly desirable to develop the novel injection shower nozzle that can solve the problems referred to above.
Summary of the invention
Present invention aims to the deficiency that prior art described above exists, it is provided that a kind of simple in construction, use
Digitized shower nozzle easily, can realize digitized jet printing, it is achieved non-homogeneous jet printing in increasing material manufacture process, real
The increasing material of existing shaping efficiency and the Synchronous lifting of formed precision and non-homogeneous functionally gradient material (FGM) manufactures.
The present invention adopts the following technical scheme that realization:
A kind of for increasing the digitized single injector injection shower nozzle that material manufactures, including single tube micro-nozzle；The front end of described micro-nozzle leads to
Cross down positioning sleeve to install after axially and radially locating in micropin deck, and be clamped in micropin deck by lock sleeve；Institute
The rear end stating single tube micro-nozzle is installed in seat board A by upper positioning sleeve after axially and radially locating；Described seat board A and micropin
Installing actuator A for driving single tube micro-nozzle to spray between deck, the external control unit of described actuator A controls.
Preferably, described actuator A is piezoelectric actuator.
During use, the material (liquid or powder body) for molding loads micro-nozzle, and piezoelectric actuator is applied pulsed drive
Voltage, under piezoelectric effect effect, in low level → high level stage, piezoelectric actuator expands, and drives micropin deck, nozzle tube wall
Accelerating to advance, under boundary region acts on, liquid in pipe (or powder body) advances with tube wall, the slow pi/2 of phase place.In high level → low level
Time, piezoelectric effect disappears, and actuator bounces back, and produces backward acceleration, and tube wall slows down and accelerates to retreat, now liquid (or powder body)
Still maintenance advance trend under inertia force effect, produces shearing force in boundary region, when reaching to be enough to overcome liquid tension, with
Produce Relative sliding motion between tube wall, thus realize the impulse movement of liquid in pipe (or powder body), to the mouth of pipe, overcome the mouth of pipe to hinder
Power and liquid tension (or powder body bridge joint power), it is achieved trace sprays.Under normality, in the micro-pipe of low reynolds number, boundary layer resistance, liquid
Under the effect such as body tension force (or powder body bridge joint power), keeping liquid in pipe (powder body) not flow, micro-nozzle is in normally off.
Or, a kind of for increasing the digitized array nozzle injection shower nozzle that material manufactures, including hopper, described hopper side sets
Putting material inlet, described feed hopper bottom seals mounted array micro-nozzle, and cover plate is installed at described hopper top, and described cover plate is installed
Actuator B, described actuator B is fixed on seat board B, and the external control unit of described actuator B controls.
Preferably, described actuator B is piezoelectric actuator.
During use, the material (liquid or powder body) for molding injects in hopper by material inlet, to piezoelectric actuator
Applying pulsed driving voltage, operating principle is ibid.
Compared with prior art, the present invention has the following advantages:
1, utilize outside grand drive force tube wall to move back and forth, transmit outside grand drive by the shearing viscous force of miniflow boundary region
Power and energy, it is achieved the trace injection of liquid or powder body；The method need not micro-embedding microcircuit, it is not necessary to substantial amounts of infinitesimal
Device, realizes closure state under normality with micro-nozzle self low reynolds number characteristic.
2, the trace injection realized is digitized injection, injection frequency, emitted dose size, can be driven electricity by program regulation
The state modulator such as pressure.
The present invention is reasonable in design, can be used for increasing the non-homogeneous injection of same slicing layer during material manufactures, and borderline region uses relatively
High frequency and less emitted dose, the biggest emitted dose in centre, thus realize the Synchronous lifting of shaping efficiency and formed precision
And the increasing material of non-homogeneous functionally gradient material (FGM) manufactures, there is good practical value.
Accompanying drawing explanation
Fig. 1 represents that single injector designs structural representation.
Fig. 2 represents that array nozzle designs structural representation.
In figure, 10-adhesive layer, 11-single tube micro-nozzle, the upper positioning sleeve of 12-, 13-seat board A, 14-actuator A, 15-micropin
Deck, positioning sleeve under 16-, 17-lock sleeve, 21-seat board B, 22-actuator B, 23-cover plate, 24-hopper, 25-array nozzle,
26-sealing ring, 27-material inlet.
Detailed description of the invention
Below in conjunction with the accompanying drawings the specific embodiment of the present invention is described in detail.
Embodiment 1
A kind of for increasing the digitized single injector injection shower nozzle that material manufactures, including micro-nozzle, nozzle hold assembly and jet drive
Parts.As it is shown in figure 1, include single tube micro-nozzle 11；The front end of described micro-nozzle 11 by lower positioning sleeve 16 axially and radially
Install behind location in micropin deck 15, and be clamped in micropin deck 15 by lock sleeve 17；Described single tube micro-nozzle 11
Rear end is installed in seat board A13 by upper positioning sleeve 12 after axially and radially locating；Described seat board A13 and micropin deck 15 it
Between install for driving actuator A14 that single tube micro-nozzle 11 spray by adhesive layer 10, described actuator A14 is external controls list
Unit controls.
During assembling, micro-nozzle loads micropin deck, and is being axially and radially located by positioning sleeve under lower end, by lock sleeve
Be clamped in micropin deck, micropin deck gluing in piezoelectric actuator A, piezoelectric actuator A are gluing have in seat board, base plate hole on
Positioning sleeve, supports micro-nozzle auxiliary positioning.
During use, the material (liquid or powder body) for molding loads micro-nozzle, and piezoelectric actuator is applied pulsed drive
Voltage, under piezoelectric effect effect, in low level → high level stage, piezoelectric actuator expands, and drives micropin deck, nozzle tube wall
Accelerating to advance, under boundary region acts on, liquid in pipe (or powder body) advances with tube wall, the slow pi/2 of phase place.In high level → low level
Time, piezoelectric effect disappears, and actuator bounces back, and produces backward acceleration, and tube wall reduces and accelerates to retreat, now liquid (or powder body)
Still maintenance advance trend under inertia force effect, produces shearing force in boundary region, when reaching to be enough to overcome liquid tension, with
Produce Relative sliding motion between tube wall, thus realize the impulse movement of liquid in pipe (or powder body), to the mouth of pipe, overcome the mouth of pipe to hinder
Power and liquid tension (or powder body bridge joint power), it is achieved trace sprays.Under normality, in the micro-pipe of low reynolds number, boundary layer resistance, liquid
Under the effect such as body tension force (or powder body bridge joint power), keeping liquid in pipe (powder body) not flow, micro-nozzle is in normally off.
Embodiment 2
A kind of for increasing the digitized array nozzle injection shower nozzle that material manufactures, replace the single spraying in embodiment 1 with array micro spray mouth
Mouth, it is possible to achieve array sprays.As in figure 2 it is shown, include hopper 24, described hopper 24 side arranges material inlet 27, described material
Sealing mounted array micro-nozzle 25 by sealing ring 26 bottom bucket 24, cover plate is installed by adhesive layer 10 in described hopper 24 top
23, described cover plate 23 installs actuator B22 by adhesive layer 10, described actuator B22 is fixed on seat board by adhesive layer 10
On B21, the external control unit of described actuator B22 controls.
During assembling, array micro spray mouth locks in hopper with screw thread, sealing ring seal, and hopper is bonded in cover plate, and cover plate is gluing
With piezoelectric actuator B, piezoelectric actuator is gluing in seat board.
During use, the material (liquid or powder body) for molding injects in hopper by material inlet, to piezoelectric actuator
Applying pulsed driving voltage, operating principle is with embodiment 1.
In embodiment, actuator A and B all can select piezoelectric actuator.Actuator has another name called vibrator, is used for carrying out power
Learn test, be the power output device of dynamic test.The effect of actuator is to apply control object according to the control law determined
Control power.Along with the development of Active Vibration Control technology, the requirement to actuator is the highest.In recent years, at traditional fluid
On the basis of start, gas actuation device and electrical equipment actuator, research and develop multiple intelligent actuator, as piezoelectric ceramics is made
Dynamic device, piezoelectric membrane actuator, electrostriction actuator, magnetostrictive actuator, shape memory alloy actuator, servo start
Device and ERF actuator etc..The appearing as of these actuator realizes high-precision Active Vibration Control and provides necessary bar
Part.
Above-mentioned droplet jet type of drive is not limited to Piezoelectric Driving, and the energy of all inputs is with Digital Control, the energy of input
Amount acts on outer tube wall with grand type of drive, and the drop digital driving injection realized by miniflow boundary region all can realize this reality
Execute the function of example.
Single injector injection shower nozzle and array injection shower nozzle in the present embodiment all utilize outside grand drive force tube wall past
Multiple motion, the shearing viscous force by miniflow boundary region transmits outside grand driving force and energy, it is achieved liquid or the trace of powder body
Digitized sprays.Can be used for increasing the non-homogeneous injection of same slicing layer during material manufactures, borderline region uses higher frequency and relatively
Little emitted dose, the biggest emitted dose in centre, thus realize shaping efficiency and the Synchronous lifting of formed precision and non-homogeneous ladder
The increasing material of degree material manufactures.
The present invention described in detail above is preferably embodied as, it will be appreciated that the ordinary skill of this area is without creating
Property work just can make many modifications and variations according to the design of the present invention.Therefore, all those skilled in the art Yi Benfa
Bright on the basis of prior art by logical analysis, reasoning or according to the limited available technical scheme of experiment, all should
Should be among by protection domain determined by the claims.
Claims (4)
1. the digitized single injector manufactured for increasing material sprays shower nozzle, it is characterised in that: include single tube micro-nozzle (11)；Institute
State the front end of micro-nozzle (11) and install in micropin deck (15) after axially and radially locating by lower positioning sleeve (16), and lead to
Cross lock sleeve (17) to be clamped in micropin deck (15)；The rear end of described single tube micro-nozzle (11) by upper positioning sleeve (12) at axle
It is installed on seat board A(13 to behind radially location) in；Described seat board A(13) and micropin deck (15) between install be used for driving list
Actuator A(14 that pipe micro-nozzle (11) sprays), described actuator A(14) control of external control unit.
It is the most according to claim 1 for increasing the digitized single injector injection shower nozzle that material manufactures, it is characterised in that: described work
Dynamic device A(14) it is piezoelectric actuator.
3. the digitized array nozzle manufactured for increasing material sprays shower nozzle, it is characterised in that: include hopper (24), described material
Bucket (24) side arranges material inlet (27), described hopper (24) sealed bottom mounted array micro-nozzle (25), described hopper
(24) cover plate (23) is installed at top, and described cover plate (23) is upper installs actuator B(22), described actuator B(22) it is fixed on seat board B
(21) on, described actuator B(22) control of external control unit.
It is the most according to claim 3 for increasing the digitized array nozzle injection shower nozzle that material manufactures, it is characterised in that: described
Actuator B(22) it is piezoelectric actuator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610359700.9A CN106042375A (en) | 2016-05-27 | 2016-05-27 | Digital jet sprayer for additive manufacturing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610359700.9A CN106042375A (en) | 2016-05-27 | 2016-05-27 | Digital jet sprayer for additive manufacturing |
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| Publication Number | Publication Date |
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| CN106042375A true CN106042375A (en) | 2016-10-26 |
Family
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610359700.9A Pending CN106042375A (en) | 2016-05-27 | 2016-05-27 | Digital jet sprayer for additive manufacturing |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018127911A1 (en) * | 2017-01-03 | 2018-07-12 | Nanopass Technologies Ltd. | Clamp for use in assembly of a microprotrusion device and corresponding method |
| CN108918385A (en) * | 2018-07-19 | 2018-11-30 | 中国科学院工程热物理研究所 | Control device occurs for dust |
| CN108995204A (en) * | 2018-07-09 | 2018-12-14 | 杨晓宏 | A kind of melting inertia ejection assemblies and increasing material manufacturing system |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6149072A (en) * | 1998-04-23 | 2000-11-21 | Arizona State University | Droplet selection systems and methods for freeform fabrication of three-dimensional objects |
| CN201147741Y (en) * | 2007-12-20 | 2008-11-12 | 上海富奇凡机电科技有限公司 | Piezoelectric microsphere sprayer head |
| CN102615018A (en) * | 2012-04-11 | 2012-08-01 | 吉林大学 | Piezoelectric wafer control type non-contact glue dispensing device |
| CN103157577A (en) * | 2013-04-03 | 2013-06-19 | 哈尔滨工业大学（威海） | Piezoelectrically-driven jet type glue dispensing device |
| CN103639411A (en) * | 2013-12-25 | 2014-03-19 | 湖南华曙高科技有限责任公司 | Scanning method for manufacturing three-dimensional object layer by layer |
| US20140272109A1 (en) * | 2013-03-15 | 2014-09-18 | Micronic Mydata AB | Methods and devices for jetting viscous medium on workpieces |
| CN204870075U (en) * | 2015-06-18 | 2015-12-16 | 北京派和科技股份有限公司 | Liquid drop of extrusion formula piezoceramics actuator disk sprays unit and injection apparatus |
| CN205871190U (en) * | 2016-05-19 | 2017-01-11 | 宁波大红鹰学院 | A digital shower nozzle that sprays for vibration material disk |
-
2016
- 2016-05-27 CN CN201610359700.9A patent/CN106042375A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6149072A (en) * | 1998-04-23 | 2000-11-21 | Arizona State University | Droplet selection systems and methods for freeform fabrication of three-dimensional objects |
| CN201147741Y (en) * | 2007-12-20 | 2008-11-12 | 上海富奇凡机电科技有限公司 | Piezoelectric microsphere sprayer head |
| CN102615018A (en) * | 2012-04-11 | 2012-08-01 | 吉林大学 | Piezoelectric wafer control type non-contact glue dispensing device |
| US20140272109A1 (en) * | 2013-03-15 | 2014-09-18 | Micronic Mydata AB | Methods and devices for jetting viscous medium on workpieces |
| CN103157577A (en) * | 2013-04-03 | 2013-06-19 | 哈尔滨工业大学（威海） | Piezoelectrically-driven jet type glue dispensing device |
| CN103639411A (en) * | 2013-12-25 | 2014-03-19 | 湖南华曙高科技有限责任公司 | Scanning method for manufacturing three-dimensional object layer by layer |
| CN204870075U (en) * | 2015-06-18 | 2015-12-16 | 北京派和科技股份有限公司 | Liquid drop of extrusion formula piezoceramics actuator disk sprays unit and injection apparatus |
| CN205871190U (en) * | 2016-05-19 | 2017-01-11 | 宁波大红鹰学院 | A digital shower nozzle that sprays for vibration material disk |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018127911A1 (en) * | 2017-01-03 | 2018-07-12 | Nanopass Technologies Ltd. | Clamp for use in assembly of a microprotrusion device and corresponding method |
| CN108995204A (en) * | 2018-07-09 | 2018-12-14 | 杨晓宏 | A kind of melting inertia ejection assemblies and increasing material manufacturing system |
| CN108918385A (en) * | 2018-07-19 | 2018-11-30 | 中国科学院工程热物理研究所 | Control device occurs for dust |
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Application publication date: 20161026 |
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