CN108638510A - A kind of micro- spray ejecting device of dropization piezoelectric type mechanical firing pin on demand - Google Patents
A kind of micro- spray ejecting device of dropization piezoelectric type mechanical firing pin on demand Download PDFInfo
- Publication number
- CN108638510A CN108638510A CN201810329228.3A CN201810329228A CN108638510A CN 108638510 A CN108638510 A CN 108638510A CN 201810329228 A CN201810329228 A CN 201810329228A CN 108638510 A CN108638510 A CN 108638510A
- Authority
- CN
- China
- Prior art keywords
- striker
- micro
- nozzle pipe
- ejecting device
- enlarger
- 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.)
- Pending
Links
- 239000007921 spray Substances 0.000 title claims abstract description 34
- 238000010304 firing Methods 0.000 title claims abstract description 9
- 239000000919 ceramic Substances 0.000 claims abstract description 10
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 8
- 230000036316 preload Effects 0.000 claims abstract description 4
- 238000006073 displacement reaction Methods 0.000 claims description 8
- 235000003283 Pachira macrocarpa Nutrition 0.000 claims 1
- 241001083492 Trapa Species 0.000 claims 1
- 235000014364 Trapa natans Nutrition 0.000 claims 1
- 235000009165 saligot Nutrition 0.000 claims 1
- 238000010146 3D printing Methods 0.000 description 5
- 229910003460 diamond Inorganic materials 0.000 description 5
- 239000010432 diamond Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000007639 printing Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000013178 mathematical model Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
- B29C64/205—Means for applying layers
- B29C64/209—Heads; Nozzles
-
- 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 micro- spray ejecting devices of dropization piezoelectric type mechanical firing pin on demand, it includes nozzle pipe, it is set to nozzle pipe bottom end, micro- spray chamber pedestal with nozzle, the other end of nozzle pipe is fixed on a fixed frame, the nozzle pipe is connected with feeding equipment, it is provided with striker in the nozzle pipe, and is provided with the linear bearing of the direction of motion for guiding striker in nozzle pipe；An enlarger is provided in the fixed frame, piezoelectric ceramic actuator is provided in enlarger, and one end of enlarger is connect with the top of the striker, the other end of enlarger is connect with the preload micromatic setting being set on fixed frame, the top of the striker is provided with reducible elastic element with the linear bearing, which is set on the striker.Ejecting device provided by the invention has many advantages, such as that micro- spray consistency is good, micro- spray frequency is high.
Description
Technical field
The present invention relates to sprinkler equipment fields, and in particular to a kind of micro- spray cartridge nozzle of dropization piezoelectric type mechanical firing pin on demand
It sets.
Background technology
3D printer is one kind of printer, uses 3 D-printing, i.e. rapid prototyping technology, it is a kind of mathematical model
Based on file, with adhesive materials such as powdery metal or plastics, the skill of object is constructed by layer-by-layer printing
Art.The on-demand micro- spray nozzle of dropization piezoelectric type mechanical firing pin is the core of the on-demand dropization system of 3D printings；Currently, existing micro- spray
The shortcomings of that there is micro- spray frequencies is not high for nozzle, micro- spray consistency is poor, to largely effect on the quality of 3D printing.
Invention content
In order to overcome the deficiencies of the prior art and there are the problem of, the present invention provides a kind of dropization piezoelectric type mechanical firing pin on demand
Micro- spray ejecting device, the ejecting device have many advantages, such as that micro- spray consistency is good, micro- spray frequency is high.
The present invention is achieved by the following technical solutions：A kind of micro- spray cartridge nozzle of dropization piezoelectric type mechanical firing pin on demand
It sets, the ejecting device includes nozzle pipe, is set to nozzle pipe bottom end, micro- spray chamber pedestal with nozzle, spray
The other end of mouth pipeline is fixed on a fixed frame, and the nozzle pipe is connected with feeding equipment, is set in the nozzle pipe
It is equipped with striker, and is provided with the linear bearing of the direction of motion for guiding striker in nozzle pipe；
It is provided with an enlarger in the fixed frame, piezoelectric ceramic actuator, and enlarger are provided in enlarger
One end connect with the top of the striker, the other end of enlarger and the preload micromatic setting that is set on fixed frame connect
It connects, the top of the striker is provided with reducible elastic element with the linear bearing, which is set in described hit
On needle.
Further, it is provided with general plug in the nozzle pipe, which is located in nozzle pipe and the linear bearing
Port connection position at.
Preferably, the elastic element is reciprocal spring；The enlarger is diamond shape micro displacement magnifying mechanism；It is described
The end of striker is circular end face.
Ejecting device provided by the invention has many advantages, such as that micro- spray consistency is good, micro- spray frequency is high, to effectively improve
The quality and efficiency of 3D printing.
Description of the drawings
Fig. 1 is the structural schematic diagram of ejecting device described in the embodiment of the present invention.
Wherein, drawing reference numeral is：1- nozzle pipes, the micro- spray chamber pedestals of 2-, 3- fixed frames, 4- feeding equipments, 5- strikers,
6- linear bearings, 7- enlargers, 8- piezoelectric ceramic actuators, 9- pre-tighten micromatic setting, 10- elastic elements, the general plugs of 11-.
Specific implementation mode
For the ease of the understanding of those skilled in the art, the present invention is made below in conjunction with the drawings and specific embodiments further
Detailed description.
As shown in Fig. 1, a kind of micro- spray ejecting device of dropization piezoelectric type mechanical firing pin on demand, the ejecting device include spray
Mouth pipeline 1, is set to nozzle pipe bottom end, micro- spray chamber pedestal 2 with nozzle, and the other end of nozzle pipe is fixed on
On one fixed frame 3, the nozzle pipe is connected with feeding equipment 4, and striker 5, and blast tube are provided in the nozzle pipe
The linear bearing 6 of the direction of motion for guiding striker is provided in road；An enlarger 7 is provided in the fixed frame,
Piezoelectric ceramic actuator 8 is provided in enlarger, and one end of enlarger is connect with the top of the striker, enlarger
The other end connect with the preload micromatic setting 9 being set on fixed frame, the top of the striker is set with the linear bearing
It is equipped with reducible elastic element 10, which is set on the striker.
Preferably, in order to ensure leakproofness so that the smooth injection of droplet is provided with general plug in the nozzle pipe
11, which is located at the position being connect with the port of the linear bearing in nozzle pipe.
As preferred embodiment, the elastic element is reciprocal spring；The enlarger is that diamond shape micro-displacement is put
Great institutions；The end of the striker is circular end face.It is provided with inclined end face in micro- spray chamber pedestal, the inclined end face and institute
Closed end face can be formed by stating circular end face and matching.
In the embodiment of the present invention, the piezoelectric ceramic actuator is used for output displacement, the diamond shape micro displacement magnifying mechanism
Output displacement for amplifying the piezoelectric ceramic actuator, so as to ensure the stroke of striker in effective range.Institute
It states and pre-tightens micromatic setting for changing micro- spray characteristic of printing equipment by the decrement of pressing spring by adjusting, its satisfaction is made to answer
With requiring；In addition, also the inclined end face in micro- spray chamber pedestal and striker end round nose can be made by adjusting precompressed micromatic setting
Face closure prevents the micro- jetting liquid from leaking.
Ejecting device provided in an embodiment of the present invention has many advantages, such as that micro- spray consistency is good, micro- spray frequency is high, to have
Effect improves the quality and efficiency of 3D printing.The groundwork of ejecting device provided in an embodiment of the present invention is former under illustrating briefly below
Reason：
（1）First, when carrying out 3D printing, the inclined end face in micro- spray chamber pedestal is closed with striker end circular end face, thus
Nozzle does not have fluid outflow；Under atmospheric pressure effect, printing " ink " in feeding equipment from being pushed into entire micro- spray chamber；
（2）Periodic electric signal is subject to piezoelectric ceramic actuator, piezoelectric ceramic actuator deforms upon and micro- by diamond shape
The amplification of displacement amplifying mechanism makes entire mechanism to contract, and striker moves upwards under the elastic force effect of reciprocal spring, at this time
The inclined end face of micro- spray chamber pedestal is detached with striker end circular end face, and fluid enters in nozzle pipe；
（3）When disconnecting electric signal, piezoelectric ceramic actuator restores shape, and entire diamond shape micro displacement magnifying mechanism resiles to drive
Dynamic striker moves downward to valve nozzles, and the moment impact pressure of striker causes the liquid in nozzle pipe huge by one
Momentum, this momentum make it that the viscous force of itself and surface tension be overcome to go out from the micro- spray of nozzle end.
Above-described embodiment is the preferable realization method of the present invention, is not limited to the present invention, is not departing from this hair
Under the premise of bright inventive concept, any obvious replacement is within protection scope of the present invention.
Claims (5)
1. a kind of micro- spray ejecting device of dropization piezoelectric type mechanical firing pin on demand, it is characterised in that：The ejecting device includes nozzle
Pipeline（1）, it is set to nozzle pipe bottom end, micro- spray chamber pedestal with nozzle（2）, the other end of nozzle pipe fixes
In a fixed frame（3）On, the nozzle pipe is connected with feeding equipment（4）, striker is provided in the nozzle pipe（5）,
And the linear bearing of the direction of motion for guiding striker is provided in nozzle pipe（6）；
An enlarger is provided in the fixed frame（7）, piezoelectric ceramic actuator is provided in enlarger（8）, and put
One end of great institutions is connect with the top of the striker, and the other end of enlarger and the preload being set on fixed frame are finely tuned
Device（9）Connection, the top of the striker are provided with reducible elastic element with the linear bearing（10）, the elastic element
It is set on the striker.
2. ejecting device according to claim 1, it is characterised in that：General plug is provided in the nozzle pipe（11）, should
General plug is located at the position being connect with the port of the linear bearing in nozzle pipe.
3. ejecting device according to claim 2, it is characterised in that：The elastic element is reciprocal spring.
4. ejecting device according to any one of claims 1 to 3, it is characterised in that：The enlarger is water chestnut
Shape micro displacement magnifying mechanism.
5. ejecting device according to claim 4, it is characterised in that：The end of the striker is circular end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810329228.3A CN108638510A (en) | 2018-04-13 | 2018-04-13 | A kind of micro- spray ejecting device of dropization piezoelectric type mechanical firing pin on demand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810329228.3A CN108638510A (en) | 2018-04-13 | 2018-04-13 | A kind of micro- spray ejecting device of dropization piezoelectric type mechanical firing pin on demand |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108638510A true CN108638510A (en) | 2018-10-12 |
Family
ID=63745943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810329228.3A Pending CN108638510A (en) | 2018-04-13 | 2018-04-13 | A kind of micro- spray ejecting device of dropization piezoelectric type mechanical firing pin on demand |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108638510A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111055492A (en) * | 2019-12-11 | 2020-04-24 | 北京工业大学 | Piezoelectric driving type high-viscosity melt injection device based on 3D printing |
| CN114312028A (en) * | 2021-12-22 | 2022-04-12 | Tcl华星光电技术有限公司 | Printhead inkjet system and inkjet printing apparatus |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102266835A (en) * | 2011-06-23 | 2011-12-07 | 深圳市轴心自控技术有限公司 | Spraying valve |
| CN103111402A (en) * | 2013-03-08 | 2013-05-22 | 厦门大学 | Jet type glue supply head |
| CN106583166A (en) * | 2017-01-22 | 2017-04-26 | 山东大学 | Piezoelectrically-driven jet type dispensing device |
| CN206444820U (en) * | 2017-01-22 | 2017-08-29 | 山东大学 | A kind of injecting type point glue equipment of Piezoelectric Driving |
| CN207103040U (en) * | 2017-04-25 | 2018-03-16 | 深圳市腾盛工业设备有限公司 | A kind of piezoelectric ceramics spray site glue valve |
| CN208084986U (en) * | 2018-04-13 | 2018-11-13 | 东莞理工学院 | A kind of micro- spray ejecting device of dropization piezoelectric type mechanical firing pin on demand |
-
2018
- 2018-04-13 CN CN201810329228.3A patent/CN108638510A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102266835A (en) * | 2011-06-23 | 2011-12-07 | 深圳市轴心自控技术有限公司 | Spraying valve |
| CN103111402A (en) * | 2013-03-08 | 2013-05-22 | 厦门大学 | Jet type glue supply head |
| CN106583166A (en) * | 2017-01-22 | 2017-04-26 | 山东大学 | Piezoelectrically-driven jet type dispensing device |
| CN206444820U (en) * | 2017-01-22 | 2017-08-29 | 山东大学 | A kind of injecting type point glue equipment of Piezoelectric Driving |
| CN207103040U (en) * | 2017-04-25 | 2018-03-16 | 深圳市腾盛工业设备有限公司 | A kind of piezoelectric ceramics spray site glue valve |
| CN208084986U (en) * | 2018-04-13 | 2018-11-13 | 东莞理工学院 | A kind of micro- spray ejecting device of dropization piezoelectric type mechanical firing pin on demand |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111055492A (en) * | 2019-12-11 | 2020-04-24 | 北京工业大学 | Piezoelectric driving type high-viscosity melt injection device based on 3D printing |
| CN114312028A (en) * | 2021-12-22 | 2022-04-12 | Tcl华星光电技术有限公司 | Printhead inkjet system and inkjet printing apparatus |
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