CN207077763U - A kind of droplet ejection device - Google Patents
A kind of droplet ejection device Download PDFInfo
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- CN207077763U CN207077763U CN201720813641.8U CN201720813641U CN207077763U CN 207077763 U CN207077763 U CN 207077763U CN 201720813641 U CN201720813641 U CN 201720813641U CN 207077763 U CN207077763 U CN 207077763U
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Abstract
The utility model discloses a kind of droplet ejection device, including brake, oscillator, cavity, the bar that shakes, nozzle, shell；Above oscillator, oscillator is connected brake with the bar that shakes, and rod set of shaking enters in cavity；Nozzle is connected with cavity lower end, and oscillator is connected with cavity upper end；Brake, oscillator, cavity, the bar that shakes, nozzle are placed in enclosure；Brake promotes the bar that shakes to make intermittent linear reciprocating motion and closes nozzle or open nozzle under the driving of pwm signal；Oscillator drives the bar that shakes to make periodic oscillating movement under the driving of pwm signal, and continuous liquid is divided into small drop.Continuous liquid is divided into small drop simpler than prior art by the periodic oscillating movement of the bar that shakes by the utility model, and prevents liquid from overflowing by promoting the bar that shakes to close nozzle, so as to improve accuracy of spray.
Description
【Technical field】
It the utility model is related to the micro- spray field of liquid, more precisely a kind of droplet ejection device.
【Background technology】
With the fast development of the industrial revolution, free forming technology is increasingly mature, and is widely used in product design, doctor
The field such as treatment and industrial production, achieves huge economic interests.Droplet ejection free forming is one of free forming technology
Important branch, its Forming Theory be based primarily upon drop injection, i.e., by external force force moulding material in the form of fine droplets from
Nozzle is ejected on ground, forms two-dimentional picture and text or 3D solid.It is free according to the drop state ejected, droplet ejection
Formation system can be divided into continous way and the class of on-demand two.After controller sends an injection signal, continous way spraying system
Shower nozzle can constantly eject the clusters of droplets being made up of drop, and on-demand shower nozzle can only then eject a drop main droplet with
And the tail washings drop or the satellite droplet of several divisions supervened.
Droplet ejection free forming collection high resolution, injection frequency is fast, can realize high-precision injection volume, ultra tiny control
System, expands to many new engineering fields with the features such as compact-sized, integrated level is high from the graphic printing of routine,
Such as：Cell printing, integrated circuit printing, spray printing electronic component, makes New function material and biological medicine etc..
Additional droplets existing for current droplet ejection technology are considered as a kind of wild effect of droplet ejection, to droplet
Jet band carrys out many uncontrollable factors, have impact on the precision of droplet ejection.Such as by injection object in moving process, droplet spray
Drop can not effectively be controlled by penetrating equipment, cause the drop of injection uneven.
The utility model accurately closes nozzle when being moved by injection object by push rod, so as to avoid additional droplets from spraying
Go out.Continuous liquid is divided into fine drop by the vibrations of push rod simultaneously.It is extra that the utility model solves droplet ejection
The problem of drop, improve droplet ejection precision.
【The content of the invention】
For drawbacks described above, the utility model provides a kind of droplet ejection device, and described device includes brake, shaken
Son, cavity, the bar that shakes, nozzle, shell；Above the oscillator, the oscillator is connected the brake with the bar that shakes, described to shake
Rod set enters in cavity；The nozzle is connected with the cavity lower end, and the oscillator is connected with the cavity upper end；The braking
Device, the oscillator, the cavity, the bar that shakes, the nozzle are placed in the enclosure；The brake is in pwm signal
Under driving, promote the bar that shakes to make intermittent linear reciprocating motion and close the nozzle or open the nozzle；The oscillator is in PWM
The drive bar that shakes makees periodic oscillating movement under the driving of signal, and continuous liquid is divided into small drop.
Alternatively, for cone, the nozzle interior is cone for the bar lower end that shakes；When the bar that shakes closes the spray
During mouth, the bar lower end that shakes can close the nozzle interior completely.
Alternatively, a spring is housed below the oscillator；When driving the pwm signal of brake to stop, the spring pushes away
The dynamic bar that shakes moves upwards, opens the nozzle.
Alternatively, it is described to shake bar and the cavity connecting place is equipped with a sealing ring, for preventing the liquid in cavity from overflowing
Go out.
Alternatively, the cavity wall of the cavity is provided with a circular hole, for connecting feed liquid pipeline；The feed liquid pipeline is used for defeated
Enter liquid in cavity.
The beneficial effects of the utility model：The utility model accurately closes spray by push rod when being moved by injection object
Mouth, so as to avoid additional droplets from spraying, while continuous liquid is divided into fine drop by the vibrations of push rod.The invention solution
Determined droplet ejection additional droplets the problem of, improve droplet ejection precision.
【Brief description of the drawings】
Fig. 1 is the structural representation of droplet ejection device embodiment one provided by the utility model.
Fig. 2 is the structural representation of droplet ejection device embodiment two provided by the utility model.
【Embodiment】
It should be appreciated that specific embodiment described herein is not used to limit this only to explain the utility model
Utility model.
In follow-up description, the suffix using such as " module ", " part " or " unit " for representing element is only
Be advantageous to explanation of the present utility model, itself there is no a specific meaning.Therefore, " module ", " part " or " unit " can be with
Mixedly use.
Embodiment one
With reference to figure 1, a kind of droplet ejection device, the device includes brake P101, oscillator P102, cavity P104, shake bar
P103, nozzle P105, shell P106, mobile station P107, controller P108, fluid reservoir P109, fixed station P110.
Above oscillator P102, oscillator P102's brake P101 is connected with the bar P103 that shakes, and the bar P103 that shakes is inserted in cavity P104
It is interior；Nozzle P105 is connected with cavity P104 lower ends；Brake P101, oscillator P101, cavity P104, the bar P103 that shakes, nozzle P105
It is placed in inside shell P106；Controller P108 is exported after 1 road pwm signal is amplified by amplifying circuit and is conveyed to brake P101,
For brake P101 under the driving of pwm signal, the promotion bar P103 that shakes makees intermittent linear reciprocating motion, close nozzle P105 or
Open nozzle P105；Controller P108 is exported after 1 road pwm signal is amplified by amplifying circuit and is conveyed to oscillator P102, oscillator
P102 drives the bar P103 that shakes to make periodic oscillating movement under the driving of pwm signal, continuous liquid is divided into small
Drop.
Bar P103 lower ends shake for cone, it is inside nozzle P105 and conical.The size of both is suitable, when the bar that shakes
When closing nozzle P105 is pushed away under P103, the cone for the bar P103 lower ends that shake can be completely inside closed-nozzle P105.So as to realize
The nozzle P105 of closure droplet ejection completely, prevents liquid from overflowing.
Droplet ejection device also includes a fluid reservoir P109, is connected by pipeline with cavity P104.Fluid reservoir P109
The middle liquid stored for injection, after applying certain pressure in fluid reservoir P109, liquid is flowed into cavity by pipeline.
Putting on fluid reservoir P109 can be realized by external pressurized device, and pressure size is realized by adjusting external pressurized device.
Controller P108 is exported after 1 road pwm signal is amplified by amplifying circuit and is conveyed to mobile station P107, is moved for controlling
Dynamic platform P107 movement.In mobile station P107 installations and fixed station P110, by controlling mobile station P107 mobile realization to be sprayed
The movement of object is penetrated, so as to complete droplet ejection.Controller P108 can control mobile station P107 mobile route as needed,
Such as in the droplet ejection application of textile industry, control mobile station P107 is moved by some decorative pattern path, so as on the textile
Complete the injection of some decorative pattern.
Controller P108, if the region need not spray drop, is controlled before needing to control mobile station P107 movements
Device P108 processed sends positive most strong pwm signal to brake P101, so that brake P101 pushes down on the bar P103 that shakes, closes
Nozzle P105 is closed, prevents liquid from overflowing, while stops transmission PMW signals and gives oscillator P102.At this moment sent again to mobile station P107
Pwm signal, mobile mobile station to destination locations.After the completion of movement, it is necessary to when carrying out droplet ejection again, controller P108 is to braking
Device P101 sends reversely most strong pwm signal, pulls the bar P103 that shakes upward, opens nozzle P105, while send to oscillator P102
Pwm signal, drive vibrator P102 make periodic oscillating movement, continuous liquid are divided into small drop, then drop
Sprayed from nozzle P105.
Frequency, phase and pulsewidth can be adjusted for the pwm signal of controller P108 outputs, so as to according to injection
Fluid characteristics be adjusted.As the liquid of injection is more sticky, it is necessary to adjust the signal for being conveyed to oscillator P102, shake oscillator
Frequency faster, vibration amplitude it is bigger, sticky liquid could be so divided into small drop.
The present embodiment accurately closes nozzle when being moved by injection object by push rod, so as to avoid additional droplets from spraying,
Continuous liquid is divided into fine drop by the vibrations of push rod simultaneously.Solve the problems, such as droplet ejection additional droplets, carry
The high precision of droplet ejection.
Embodiment two
With reference to figure 2, the present embodiment is cased with the basis of embodiment one below the top for the bar P103 that shakes, oscillator P102
One spring P111.Spring P111 elastic force can upwards boost the bar P103 that shakes when brake P101 is not pushed down on, from
And open nozzle P105.
Controller P108, if the region need not spray drop, is controlled before needing to control mobile station P107 movements
Device P108 processed sends positive most strong pwm signal to brake P101, so that brake P101 pushes down on the bar P103 that shakes, closes
Nozzle P105 is closed, prevents liquid from overflowing, while stops transmission PMW signals and gives oscillator P102.At this moment sent again to mobile station P107
Pwm signal, mobile mobile station to destination locations.After the completion of movement, it is necessary to when carrying out droplet ejection again, controller P108 stops defeated
Go out pwm signal to brake P101.Oscillator P102 pulls the bar P103 that shakes upward in spring P111 elastic force, opens nozzle P105,
Pwm signal is sent to oscillator P102 simultaneously, drive vibrator P102 makees periodic oscillating movement, continuous liquid is divided into micro-
Small drop, then drop from nozzle P105 spray.
The bar P103 that shakes is provided with sealing ring P112 with cavity P104 socket places, and sealing ring P112 is used to prevent the bar P103 that shakes
Liquid in reciprocal up and down motion process cavity P104 overflows.
The present embodiment installs a spring in droplet ejection device, is not required to export reverse pwm signal can and open to spray
Mouth, so as to enhance the energy-saving effect of droplet ejection device；Increase sealing ring can prevent liquid from overflowing.
It should be noted that herein, term " comprising ", "comprising" or its any other variant are intended to non-row
His property includes, so that process, method, article or device including a series of elements not only include those key elements, and
And also include the other element being not expressly set out, or also include for this process, method, article or device institute inherently
Key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that including this
Other identical element also be present in the process of key element, method, article or device.
Above-mentioned the utility model embodiment sequence number is for illustration only, does not represent the quality of embodiment.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can add the mode of required general hardware platform to realize by software, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.
Embodiment of the present utility model is described above in conjunction with accompanying drawing, but the utility model is not limited to
The embodiment stated, above-mentioned embodiment is only schematical, rather than restricted, this area it is common
Technical staff is not departing from the utility model aims and scope of the claimed protection situation under enlightenment of the present utility model
Under, many forms can be also made, these are belonged within protection of the present utility model.
Claims (5)
1. a kind of droplet ejection device, it is characterised in that described device includes brake, oscillator, cavity, the bar that shakes, nozzle, outer
Shell；
Above the oscillator, the oscillator is connected the brake with the bar that shakes, and the rod set of shaking enters in cavity；
The nozzle is connected with the cavity lower end；
The brake, the oscillator, the cavity, the bar that shakes, the nozzle are placed in the enclosure；
The brake under the driving of pwm signal, promotion shake bar make intermittent linear reciprocating motion close the nozzle or
Open the nozzle；
The oscillator drives the bar that shakes to make periodic oscillating movement under the driving of pwm signal, continuous liquid is divided into micro-
Small drop.
2. device according to claim 1, it is characterised in that for cone, the nozzle interior is circle for the bar lower end that shakes
Taper；When the bar that shakes closes the nozzle, the bar lower end that shakes can close the nozzle interior completely.
3. device according to claim 1 a, it is characterised in that spring is housed below the oscillator；
When driving the pwm signal of brake to stop, the spring promotes the bar that shakes to move upwards, opens the nozzle.
4. device according to claim 1, it is characterised in that bar and the cavity connecting place of shaking is equipped with a sealing
Circle, for preventing the liquid in cavity from overflowing.
5. device according to claim 1, it is characterised in that the cavity wall of the cavity is provided with a circular hole, is supplied for connecting
Liquid pipe road；The feed liquid pipeline is in infusion fluid to cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720813641.8U CN207077763U (en) | 2017-07-06 | 2017-07-06 | A kind of droplet ejection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720813641.8U CN207077763U (en) | 2017-07-06 | 2017-07-06 | A kind of droplet ejection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207077763U true CN207077763U (en) | 2018-03-09 |
Family
ID=61427002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720813641.8U Active CN207077763U (en) | 2017-07-06 | 2017-07-06 | A kind of droplet ejection device |
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| Country | Link |
|---|---|
| CN (1) | CN207077763U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107138337A (en) * | 2017-07-06 | 2017-09-08 | 合肥铭传电子科技有限公司 | A kind of microdrop spraying method and device |
| CN111002578A (en) * | 2019-12-23 | 2020-04-14 | 山东理工大学 | Multi-material on-demand distribution spray head device and method |
| CN111013848A (en) * | 2019-12-23 | 2020-04-17 | 山东理工大学 | Spray head device with function of distribution according to needs |
-
2017
- 2017-07-06 CN CN201720813641.8U patent/CN207077763U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107138337A (en) * | 2017-07-06 | 2017-09-08 | 合肥铭传电子科技有限公司 | A kind of microdrop spraying method and device |
| CN111002578A (en) * | 2019-12-23 | 2020-04-14 | 山东理工大学 | Multi-material on-demand distribution spray head device and method |
| CN111013848A (en) * | 2019-12-23 | 2020-04-17 | 山东理工大学 | Spray head device with function of distribution according to needs |
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