CN108501359A - A kind of control system of biology 3D printer pneumatic sprayhead - Google Patents
A kind of control system of biology 3D printer pneumatic sprayhead Download PDFInfo
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- CN108501359A CN108501359A CN201810365572.8A CN201810365572A CN108501359A CN 108501359 A CN108501359 A CN 108501359A CN 201810365572 A CN201810365572 A CN 201810365572A CN 108501359 A CN108501359 A CN 108501359A
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- 239000000463 material Substances 0.000 claims abstract description 48
- 238000001035 drying Methods 0.000 claims abstract description 17
- 238000000746 purification Methods 0.000 claims abstract description 11
- 238000003860 storage Methods 0.000 claims description 9
- 230000006399 behavior Effects 0.000 claims description 4
- 230000008859 change Effects 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 3
- 238000010926 purge Methods 0.000 claims 1
- 238000001125 extrusion Methods 0.000 abstract description 30
- 206010039424 Salivary hypersecretion Diseases 0.000 abstract description 10
- 208000026451 salivation Diseases 0.000 abstract description 10
- 238000000034 method Methods 0.000 description 9
- 238000007639 printing Methods 0.000 description 7
- 238000010146 3D printing Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 241000894006 Bacteria Species 0.000 description 4
- 239000000428 dust Substances 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 239000012620 biological material Substances 0.000 description 3
- 238000003325 tomography Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000035772 mutation Effects 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000013178 mathematical model Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
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- 239000002994 raw material Substances 0.000 description 1
- 239000011540 sensing material Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Classifications
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- 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
- B29C64/10—Processes of additive manufacturing
- B29C64/106—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
- B29C64/118—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using filamentary material being melted, e.g. fused deposition modelling [FDM]
-
- 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
-
- 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
- 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
- B29C64/30—Auxiliary operations or equipment
- B29C64/386—Data acquisition or data processing for additive manufacturing
- B29C64/393—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
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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
-
- 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
- B33Y50/00—Data acquisition or data processing for additive manufacturing
- B33Y50/02—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
Abstract
The present invention provides a kind of control system of biological 3D printer pneumatic sprayhead.A kind of control system of biology 3D printer pneumatic sprayhead, wherein, including air source and nozzle, air source is connect by air delivering pipeline with nozzle, on air delivering pipeline gas purification drying device is equipped with close to one end of air source, on air delivering pipeline solenoid valve is equipped with close to one end of nozzle, solenoid valve includes normally opened channel and normally closed channel, the pressure release branch communicated with the external world is connected on normally closed channel, pressure release branch road is equipped with the check valve with Opening pressure, and the air delivering pipeline between gas purification drying device and solenoid valve is equipped with pressure regulator valve.The control system of the present invention can ensure that the pneumatic sprayhead of 3D printer is switched to by extrusion state when not squeezing out state, and the nozzle of nozzle is without salivation phenomenon；When reverting to extrusion state by not squeezing out state, the air pressure in nozzle can respond rapidly to and extruded material.
Description
Technical field
The present invention relates to 3D printing technique fields, more particularly, to a kind of control of biological 3D printer pneumatic sprayhead
System.
Background technology
3D printing technique is a kind of increases material manufacturing technology, and 3D printer is that a kind of mathematical model according to specific format is simultaneously sharp
The equipment for carrying out three-dimensional accumulation molding with various raw material, used material have high-molecular wire rod and grain material, metal powder, glue
Shape biomaterial and inorganic material in powder form etc..According to forming principle difference, the molding mode of printer can be divided into melting extrusion at
Type, ink-jet molding and Electrospun molding etc..
For extruded type 3D printing, basic principle is provides specific temperature ring by extruded type nozzle for temperature sensing material
Border simultaneously pushes material to flow the filament to form certain diameter by pressure, and the printer model needed is obtained by adding up layer by layer.It is high
The printing of precision extruded type is one of the trend of 3D printing development, and in order to improve printing precision, one of method is to select aperture smaller
Nozzle to obtain the filament of smaller diameter, in addition, also to accurately control start and stop of the filament in key position, that is, want control pressure
The variation of mutation formula.Common extruded type nozzle generally cannot achieve the mutation formula control of air pressure, the residual pressure of nozzle intracavitary
It can not discharge in time, cause constantly to squeeze out from nozzle still under the drive of residual pressure when not needing material and squeezing out.Or
Nozzle cavity pressure is too low, and when resulting in the need for material and squeezing out in time, pressure is not up to required extrusion pressure value.
Invention content
To overcome above-mentioned at least one defect in the prior art, the present invention to provide a kind of biological 3D printer pneumatic sprayhead
Control system.The control system can ensure that the pneumatic sprayhead of 3D printer is switched to by extrusion state when not squeezing out state,
The nozzle of nozzle is without salivation phenomenon；When reverting to extrusion state by not squeezing out state, the air pressure in nozzle can be responded rapidly to and be squeezed
Go out material.
In order to solve the above technical problems, the technical solution adopted by the present invention is：A kind of biology 3D printer pneumatic sprayhead
Control system, wherein including air source and nozzle, the air source is connect by air delivering pipeline with the nozzle, specifically, the spray
Head includes the nozzle of nozzle chamber and nozzle chamber front end, and the air source is connect with the nozzle chamber of the nozzle.Preferably, the air source
For the air pump or gas cylinder held with gas, it can ensure that the air pressure that air source is conveyed into nozzle is more stablized in this way.The air delivering pipeline
It is upper to be equipped with gas purification drying device close to one end of the air source, the gas accessed from air source can be enable to ensure in this way
No bacterium, dustless and holding drying, to reach requirement of the biological 3D printing to the bacteria-and dust-free of printing environment.The air delivering pipeline
Upper to be equipped with solenoid valve close to one end of the nozzle, the solenoid valve includes normally opened channel and normally closed channel, the normally closed channel
On be connected with and be equipped with the check valve with Opening pressure, the appendix with the pressure release branch that communicates of the external world, the pressure release branch road
Road is additionally provided with pressure regulator valve.
In the present invention, pressure regulation valve regulation output pressure size is utilized by filtering and dry gas, after pressure regulation valve regulation
Pressure output be just met for the extrusion pressure of different materials at desired temperatures.Air pressure after adjusting passes through the normally opened of solenoid valve
Channel enters the nozzle intracavitary of nozzle and pushes the material of nozzle intracavitary to be squeezed out from nozzle, and nozzle be in wire squeeze and prints shape at this time
State, biomaterial can constantly be squeezed out from nozzle with steady and continuous.When needing printing pause or program setting material not to squeeze out,
Nozzle needs are switched to not wire squeeze state and strict guarantee nozzle is salivated without excess stock.When the normally opened channel for closing solenoid valve
When, it can not be discharged in time due to the material extrusion pressure that nozzle intracavitary retains and entirely nozzle chamber only has nozzle and the external world to keep phase
It is logical, to which material can be caused to continue to be extruded into salivation.In order to overcome salivation phenomenon, the present invention can be normally opened in closing solenoid valve
The normally closed channel that solenoid valve is opened while channel, makes nozzle chamber pass through pressure release branch and is communicated with the external world, so as to avoid spraying
Residual pressure continues extruded material by nozzle in head cavity.
Further, when nozzle is restored by not squeezing out state to the state of extrusion, nozzle cavity pressure is needed to restore rapidly
Pressure value when to the state of extrusion.But if if directly keeping nozzle chamber to be communicated with the external world under not extrusion state, nozzle chamber
Interior pressure is just consistent with atmospheric pressure, and nozzle cavity pressure needs the process by a gradual change to complete after the switching of state moment
Pressure increases, and in this process, material is unable to steady extruding, and nozzle will show as fracture of wire and even cause model tomography existing
As.In the present invention, a check valve with Opening pressure is concatenated on the pressure release branch road in the normally closed channel of solenoid valve, check valve can
To ensure air pressure by the outwardly single release of nozzle chamber, the Opening pressure of check valve can ensure only to allow more than Opening pressure
Air pressure is discharged into extraneous and nozzle intracavitary and still maintains the atmospheric pressure value consistent with unidirectional valve opening pressure, due to the unlatching pressure of check valve
Power is just slightly below pressure required when material squeezes out in nozzle, therefore can restore rapidly to squeeze out required pressure to material so that
Material can be with steady extruding.It not only can guarantee that nozzle was switched to when not squeezing out state by extrusion state without salivation phenomenon but also can as a result,
To ensure that nozzle can restore rapidly nozzle cavity pressure by not squeezing out when state reverts to extrusion state.Wherein, due to difference
Extrusion pressure corresponding to the material of flow behavior is different, and the Opening pressure of check valve can be according to the material of different flow behaviors
Material is adjusted, to improve the scope of application of the control system of the biological 3D printer pneumatic sprayhead of the present invention.
Further, the gas purification drying device includes being set gradually along air delivering pipeline interior air-flow flow direction
Primary filter and high efficiency particulate air filter, and the air dryer that is located between the primary filter and high efficiency particulate air filter.
Primary filter is saved as first of filter ring in removing bulky grain dust and impurity in air-flow, the windage of primary filter
It is smaller, air pressure loss is had little effect, but primary filter is contaminated more serious, high frequency of replacement.It is high
It imitates filter and filters link as second, filter core rank is higher, and filter core gap is smaller, can effectively micro- life such as filter bacteria
Object and fine dust.Air dryer is added between primary filter and high efficiency filter, the work of removal excessive moisture can be played
With air dryer is more accurate, it is therefore desirable to be handled using primary filter in preposition gas, the gas after drying can be direct
It is sent into high efficiency particulate air filter and carries out final process, otherwise the excessive gas of humidity can increase the windage of high efficiency particulate air filter, and shortening it makes
Use the service life.
Further, the outlet side of the check valve is equipped with muffler.The load of letting out that muffler can reduce pressure release branch is made an uproar
Sound.
Further, the nozzle is extruded into pattern nozzle for what Pneumatic straight drove.
Further, the air delivering pipeline between the solenoid valve and nozzle is equipped with storage bottle.It is contained in storage bottle and waits beating
Material is printed, when normal extrusion prints, gas reaches storage bottle region by solenoid valve, and keeps constant pressure and push in storage bottle
Printed material be full of nozzle.
Further, further include solenoid valve switch controller, the solenoid valve is cut by communication interface and the solenoid valve
Changer controller connects.Solenoid valve switch controller connects programmed and so that completes cutting for gas channels inside electromagnetic valve body
It changes.
Further, the air delivering pipeline between the gas purification drying device and pressure regulator valve is equipped with pressure maintaining valve.In this way,
Gas first passes around pressure maintaining valve before entering pressure regulator valve pressure regulation, to ensure the steady air current of input pressure regulator valve without fluctuation.
Compared with prior art, the present invention has the advantages that：
The present invention is provided with solenoid valve in air delivering pipeline close to one end of nozzle, and is connected to and lets out on the normally closed channel of solenoid valve
Branch is pressed, and is provided with the check valve with Opening pressure on pressure release branch road so that nozzle is switched to by extrusion state and is not squeezed out
When state, the remaining air pressure of nozzle intracavitary can pass through pressure release branch discharge part to the external world so that the pressure of nozzle intracavitary is omited
Required pressure is squeezed out less than material, to ensure nozzle without salivation phenomenon.And nozzle reverts to extrusion state by not squeezing out state
When, since the pressure of nozzle intracavitary is consistent with unidirectional valve opening pressure, it is slightly less than material and squeezes out required pressure, nozzle intracavitary
Air pressure can respond rapidly to and extruded material, be not in fracture of wire even model tomography the phenomenon that.
The present invention is equipped with gas purification drying device in air delivering pipeline close to one end of air source so that gas is by processing
Afterwards, secondary pollution will not be generated to material in nozzle, cleanliness factor is high, is suitble to directly drive nozzle progress cell printing.
Description of the drawings
Fig. 1 is the overall structure diagram of biological 3D printer pneumatic sprayhead of the invention.
Specific implementation mode
The attached figures are only used for illustrative purposes and cannot be understood as limitating the patent；It is attached in order to more preferably illustrate the present embodiment
Scheme certain components to have omission, zoom in or out, does not represent the size of actual product；To those skilled in the art,
The omitting of some known structures and their instructions in the attached drawings are understandable.Being given for example only property of position relationship described in attached drawing
Illustrate, should not be understood as the limitation to this patent.
As shown in Figure 1, a kind of control system of biology 3D printer pneumatic sprayhead, wherein excellent including air source 1 and nozzle 2
Selection of land, the nozzle 2 include the nozzle of nozzle chamber and nozzle chamber front end, and the air source 1 passes through air delivering pipeline 3 and the nozzle 2
Nozzle chamber connection, it is preferable that the air source 1 be with gas hold 7 air pump or gas cylinder 8, can ensure air source 1 to nozzle chamber in this way
The air pressure of interior conveying is more stablized.It is equipped with gas purification drying device close to one end of the air source 1 on the air delivering pipeline 3,
The gas accessed from air source 1 can be enable to ensure no bacterium, dustless and holding drying in this way, to reach biological 3D printing pair
The requirement of the bacteria-and dust-free of printing environment.On the air delivering pipeline 3 solenoid valve 4, the electricity are equipped with close to one end of the nozzle 2
Magnet valve 4 includes normally opened channel and normally closed channel, and the pressure release branch communicated with the external world, the pressure release are connected on the normally closed channel
Branch road is equipped with the check valve 5 with Opening pressure, and pressure regulator valve 6 is additionally provided on the air delivering pipeline 3.
In the present embodiment, output pressure size is adjusted using pressure regulator valve 6 by filtering and dry gas, pressure regulator valve 6 is adjusted
Pressure output after section is just met for the extrusion pressure of different materials at desired temperatures.Air pressure after adjusting passes through solenoid valve 4
Normally opened channel enter nozzle intracavitary and push the material extrusion nozzle of nozzle intracavitary, nozzle is in wire squeeze print state at this time,
Biomaterial can constantly be squeezed out from nozzle with steady and continuous.When needing printing pause or program setting material not to squeeze out, spray
Head needs to be switched to not wire squeeze state and strict guarantee nozzle is salivated without excess stock.When closing the normally opened channel of solenoid valve 4,
It can not be discharged in time due to the material extrusion pressure that nozzle intracavitary retains and entirely nozzle chamber only has nozzle to be communicated with external world's holding,
To which material can be caused to continue to be extruded into salivation.In the present embodiment, in order to overcome salivation phenomenon, solenoid valve 4 can closed often
The normally closed channel that solenoid valve 4 is opened while open walk, makes nozzle chamber pass through pressure release branch and is communicated with the external world, so as to avoid
Nozzle intracavitary residual pressure continues extruded material by nozzle.
In the present embodiment, when nozzle 2 is restored by not squeezing out state to the state of extrusion, need nozzle cavity pressure extensive rapidly
Multiple nozzle squeezes out pressure value when state.But if nozzle chamber is directly kept to be communicated with the external world under nozzle not extrusion state
The pressure of words, nozzle intracavitary is just consistent with atmospheric pressure, and nozzle cavity pressure is needed by a gradual change after the switching of state moment
Process complete pressure and increase, in this process, material is unable to steady extruding, and it is disconnected that nozzle 2 just will appear fracture of wire even model
Layer phenomenon.In the present invention, a check valve 5 with Opening pressure has been concatenated on the pressure release branch road in 4 normally closed channel of solenoid valve, it is single
It can ensure air pressure by the outwardly single release of nozzle chamber to valve 5, the Opening pressure of check valve 5 can ensure only to allow more than out
The air pressure for opening pressure is discharged into the external world and nozzle intracavitary still maintains the atmospheric pressure value consistent with 5 Opening pressure of check valve, due to unidirectional
The Opening pressure of valve 5 is just slightly below pressure required when material squeezes out in nozzle 2, therefore can restore rapidly to needed for material extrusion
Pressure so that material can be with steady extruding.Thus it both can guarantee that nozzle 2 was switched to when not squeezing out state by extrusion state without salivation
Phenomenon can ensure that nozzle 2 can restore rapidly nozzle cavity pressure by not squeezing out when state reverts to extrusion state again.Wherein,
The extrusion force corresponding to material due to different flow behaviors is different, and the Opening pressure of check valve 5 can be according to different flowings
The material of characteristic is adjusted, to improve the scope of application of the control system of the biological 3D printer pneumatic sprayhead of the present invention.This reality
It applies in example, when the Opening pressure range of check valve 5 is unsatisfactory for required extrusion force, the replaceable check valve met the requirements.
To sum up, the control system course of work of pneumatic sprayhead of the invention is as follows：
Nozzle 2 is switched to by extrusion state when not squeezing out state, is closed the normally opened channel of solenoid valve 4, is opened simultaneously solenoid valve 4
Normally closed channel, since the Opening pressure of the check valve 5 of the pressure release branch road in 4 normally closed channel of solenoid valve is slightly below in the nozzle 2
Material pressure required when squeezing out so that check valve 5 still ties up the outwardly single release of the partial pressure in nozzle in nozzle
The atmospheric pressure value consistent with 5 Opening pressure of check valve is held, ensures that the material in nozzle will not continue to be extruded into salivation；Nozzle 2 by
When not squeezing out state and reverting to extrusion state, the normally closed channel of solenoid valve 4 is closed, the normally opened channel of solenoid valve 4 is opened simultaneously, this
When nozzle intracavitary still maintain the pressure value consistent with 5 Opening pressure of check valve, and the pressure value is just slightly below material and squeezes out when institute
Pressure is needed, therefore, nozzle chamber can restore rapidly to squeeze out required pressure to material, make material that can be not in steady extruding
The phenomenon that fracture of wire or even model tomography.
As shown in Figure 1, the gas purification drying device includes being set successively along 3 interior air-flow flow direction of the air delivering pipeline
The primary filter 9 and high efficiency particulate air filter 10 set, and the air that is located between the primary filter 9 and high efficiency particulate air filter 10
Drier 11.Primary filter 9 is saved as first of filter ring in removing bulky grain dust and impurity in air-flow, primary mistake
The windage of filter 9 is smaller, and air pressure loss is had little effect, but primary filter 9 is contaminated more serious, replaces
Frequency is higher.High efficiency particulate air filter 10 filters link as second, and filter core rank is higher, and filter core gap is smaller, can be effective
The microorganisms such as filter bacteria and fine dust.Air dryer 11 is added between primary filter and high efficiency filter, can play
The effect of excessive moisture is removed, air dryer 11 is more accurate, it is therefore desirable to it is handled using primary filter 9 in preposition gas,
Gas after drying can be sent directly into high efficiency particulate air filter 10 and carry out final process, and otherwise the excessive gas of humidity can increase efficiently
The windage of filter 10 shortens its service life.
As shown in Figure 1, the outlet side of the check valve 5 is equipped with muffler 12.Muffler 12 can reduce pressure release branch
Let out load noise.
In the present embodiment, the nozzle 2 is extruded into pattern nozzle for what Pneumatic straight drove.
As shown in Figure 1, the air delivering pipeline 3 between the solenoid valve 4 and nozzle 2 is equipped with storage bottle 13.In storage bottle 13
Material to be printed is contained, when normal extrusion prints, gas reaches 13 region of storage bottle by solenoid valve 4, and keeps constant pressure
The printed material in storage bottle 13 is pushed to be full of nozzle 2.
As shown in Figure 1, further including solenoid valve switch controller 14, the solenoid valve 4 passes through communication interface and the electromagnetism
Vavle switching controller 14 connects.Solenoid valve switch controller 14 connects programmed and 4 valve inner of solenoid valve is made to complete gas
The switching of paths.
As shown in Figure 1, the air delivering pipeline 3 between the gas purification drying device and pressure regulator valve 6 is equipped with pressure maintaining valve 15.
In this way, gas first passes around pressure maintaining valve 15 before entering 6 pressure regulation of pressure regulator valve, to ensure the steady air current of input pressure regulator valve 6 without wave
It is dynamic.
Obviously, the above embodiment of the present invention is just for the sake of clearly demonstrating examples made by the present invention, and is not
Restriction to embodiments of the present invention.For those of ordinary skill in the art, on the basis of the above description also
It can make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.It is all
All any modification, equivalent and improvement made by within the spirit and principles in the present invention etc. should be included in right of the present invention and want
Within the protection domain asked.
Claims (10)
1. a kind of control system of biology 3D printer pneumatic sprayhead, which is characterized in that including air source（1）And nozzle（2）, described
Air source（1）Pass through air delivering pipeline（3）With the nozzle（2）Connection, the air delivering pipeline（3）The upper close air source（1）One
End is equipped with gas purification drying device, the air delivering pipeline（3）The upper close nozzle（2）One end be equipped with solenoid valve（4）, institute
State solenoid valve（4）Including normally opened channel and normally closed channel, the pressure release branch communicated with the external world, institute are connected on the normally closed channel
It states pressure release branch road and is equipped with the check valve with Opening pressure（5）, the gas purification drying device and solenoid valve（4）Between it is defeated
Air pipe（3）It is equipped with pressure regulator valve（6）.
2. the control system of biology 3D printer pneumatic sprayhead according to claim 1, which is characterized in that the air source
（1）Hold for band gas（7）Air pump（8）Or gas cylinder.
3. the control system of biology 3D printer pneumatic sprayhead according to claim 1, which is characterized in that the gas is net
It includes along the air delivering pipeline to change drying device（3）The primary filter that interior air-flow flow direction is set gradually（9）With efficient mistake
Filter（10）, and it is located at the primary filter（9）And high efficiency particulate air filter（10）Between air dryer（11）.
4. the control system of biology 3D printer pneumatic sprayhead according to claim 1, which is characterized in that the check valve
（5）Outlet side be equipped with muffler（12）.
5. the control system of biology 3D printer pneumatic sprayhead according to claim 1, which is characterized in that the check valve
（5）Opening pressure it is adjustable, to adapt to the material of different flow behaviors.
6. the control system of biology 3D printer pneumatic sprayhead according to claim 5, which is characterized in that the check valve
（5）Opening pressure be slightly below the nozzle（2）Middle material pressure required when squeezing out.
7. the control system of biology 3D printer pneumatic sprayhead according to claim 1, which is characterized in that the nozzle
（2）It is extruded into pattern nozzle for what Pneumatic straight drove.
8. the control system of biology 3D printer pneumatic sprayhead according to claim 1, which is characterized in that the solenoid valve
（4）And nozzle（2）Between air delivering pipeline（3）It is equipped with storage bottle（13）.
9. the control system of biology 3D printer pneumatic sprayhead according to claim 1, which is characterized in that further include electromagnetism
Vavle switching controller（14）, the solenoid valve（4）Pass through communication interface and the solenoid valve switch controller（14）Connection.
10. the control system of biology 3D printer pneumatic sprayhead according to claim 1, which is characterized in that the gas
Purge drying device and pressure regulator valve（6）Between air delivering pipeline（3）It is equipped with pressure maintaining valve（15）.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810365572.8A CN108501359A (en) | 2018-04-23 | 2018-04-23 | A kind of control system of biology 3D printer pneumatic sprayhead |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810365572.8A CN108501359A (en) | 2018-04-23 | 2018-04-23 | A kind of control system of biology 3D printer pneumatic sprayhead |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112265261A (en) * | 2020-12-01 | 2021-01-26 | 西安吉米特三维科技有限公司 | FDM 3D print head with microbubble system |
| CN114147951A (en) * | 2021-11-29 | 2022-03-08 | 浙江大学 | Pneumatic multi-channel control system and method for multi-nozzle biological 3D printing system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205460048U (en) * | 2016-03-01 | 2016-08-17 | 华中科技大学 | Many shower nozzles three -dimensional inkjet printer |
| CN106976227A (en) * | 2017-04-21 | 2017-07-25 | 上海大学 | A kind of feeding system of the biological 3D printer of many shower nozzles |
-
2018
- 2018-04-23 CN CN201810365572.8A patent/CN108501359A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205460048U (en) * | 2016-03-01 | 2016-08-17 | 华中科技大学 | Many shower nozzles three -dimensional inkjet printer |
| CN106976227A (en) * | 2017-04-21 | 2017-07-25 | 上海大学 | A kind of feeding system of the biological 3D printer of many shower nozzles |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112265261A (en) * | 2020-12-01 | 2021-01-26 | 西安吉米特三维科技有限公司 | FDM 3D print head with microbubble system |
| CN114147951A (en) * | 2021-11-29 | 2022-03-08 | 浙江大学 | Pneumatic multi-channel control system and method for multi-nozzle biological 3D printing system |
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