CN107031044A - Pneumatic piston 3D printing shower nozzle - Google Patents
Pneumatic piston 3D printing shower nozzle Download PDFInfo
- Publication number
- CN107031044A CN107031044A CN201611033140.4A CN201611033140A CN107031044A CN 107031044 A CN107031044 A CN 107031044A CN 201611033140 A CN201611033140 A CN 201611033140A CN 107031044 A CN107031044 A CN 107031044A
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- China
- Prior art keywords
- cylinder body
- piston
- lower cylinder
- upper cylinder
- shower nozzle
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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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
- Prostheses (AREA)
Abstract
The present invention discloses a kind of Pneumatic piston 3D printing shower nozzle, including upper cylinder body (11), upper cylinder cover (12), upper piston (13), lower cylinder body (21), lower cylinder cap (22), lower piston (23), piston rod (31) and piston spring (32), inlet suction port (14) is provided with the top of upper cylinder body (11), lower cylinder body (21) bottom is provided with discharging opening (24), upper cylinder cover (12) is removable connected with lower cylinder cap (22), piston rod (31) is closed to pass through upper cylinder cover (12) and lower cylinder cap (22), one end is connected with upper piston (13), the other end is connected with lower piston (23), piston spring (32) is located between upper piston (13) and upper cylinder cover (12), the outlet of sprue (5) in lower cylinder body (21) with communicating, its import is used to inject biomaterial.The 3D printing shower nozzle of the present invention, can realize smooth low temperature printing, and simple in construction.
Description
Technical field
It is particularly a kind of to realize the gas of low temperature printing the invention belongs to cell and biomaterial 3D printing technique field
Piston formula 3D printing shower nozzle
Background technology
Treatment for being damaged bulk soft tissue and internal organs, the transplanting of human tissue organ is a kind of extremely effective
Treatment method.But the problems such as being due to the shortage of organ donor source, immunological rejection, is present, and organ transplant is treated in practice
In the presence of the difficulty for being difficult to overcome.And the proposition of organizational project opens new approach for above mentioned problem.Organizational project is will be living thin
Born of the same parents are conformed in biomaterial matrix or the support prepared by some way, come constructing function tissue substituent.Then will
Implantation within a patient after the tissue body substitute of structure is cultivated, substitutes original pathological tissues organ to recover original
Physical function realizes the treatment to disease.The research and utilization of current organization engineering skin are exactly the good development prospect of organizational project
Effective illustration.
Traditional Tissue Engineering Study has been limited to cell implanted prosthetics, i.e., cell " is implanted on support to " this group
During knitting in inherent technology link, it is impossible to different types of cell and biological material are pin-pointed into internal stent different
Locus.In fact, with the propulsion of Tissue Engineering Study, research work is gradually to bulk soft tissue and internal organs side
Face is born, and because these tissues and organ often contain various kinds of cell and biomaterial, and different cells or material have
Specific spatial arrangement, therefore above-mentioned technical limitation more highlights.
In recent years, the fast development of 3D printing technique, is that industry manufacture opens new manufacture production model.In biology
In field, biometric print, the technology such as cell three-dimensional controlled tissue is also applied and given birth to.These technologies have operation individual cells or list
The ability of composition microsize drop, can the accurately locus of control operation object and distribution, for realizing bulk tissue
With in organ building process not allogenic cell and biomaterial locus deposition have huge meaning.Therefore, exploitation life
If the inexorable trend that thing printing technique is future organization engineering research can overcome not destroyed under different temperatures environment for material
Its biological nature.And in a typical biometric print machine, one of big critical component in Zhejiang is exactly that shower nozzle also has material in addition
Purchase.
That learns research realizes single spraying head to many towards the biological 3D printing shower nozzle of rotation switching mode that multiple material is printed
The printing of material is planted, for the composites such as the higher collagen of viscosity, the non-newtonian feature of heavy viscous material is divided
Analysis finds that piston press is best fashion of extrusion.(referring to article：" heavy viscous material three-dimensional printer is developed and food and medicine
Printing research ", Zhu Wei outstanding persons【D】Zhejiang University .2015).And realize that 3D printing is relatively difficult for some cryogenic materials.
In a word, the problem of prior art is present be：Biological 3D printing shower nozzle is difficult to low temperature printing.
The content of the invention
It is an object of the invention to provide a kind of Pneumatic piston 3D printing shower nozzle, to realize that biological 3D low temperature is printed, and
It is simple in construction.
The technical solution for realizing the object of the invention is：
A kind of Pneumatic piston 3D printing shower nozzle, it include upper cylinder body, upper cylinder cover, upper piston, lower cylinder body, lower cylinder cap, under
Piston, piston rod and piston spring；Provided with the inlet suction port for making upper cylinder body be communicated with the external world at the top of the upper cylinder body, under upper cylinder body
End opening, the upper cylinder cover is threadedly coupled with the lower end of upper cylinder body, and the lower cylinder body bottom is provided with the discharging opening communicated with syringe needle,
Lower cylinder body upper end open, the threaded upper ends connection of the lower cylinder cap and lower cylinder body；The upper cylinder cover is removable connected with lower cylinder cap；
The upper piston is placed in upper cylinder body with upper cylinder body close fit, and lower piston is placed in lower cylinder body with lower cylinder body close fit
Interior, the piston rod is closed to pass through upper cylinder cover and lower cylinder cap, and one end is connected with upper piston, and the other end is connected with lower piston, described
Piston spring is set with the piston rod, between upper piston and upper cylinder cover；The lower sidewall of the lower cylinder body is provided with sprue
And check valve, the import of the check valve in lower cylinder body with being communicated, and its outlet is communicated with the external world, and the outlet of the sprue is with
Communicated in cylinder body, its import is used to inject biomaterial.
Compared with prior art, its remarkable advantage is the present invention：
It can realize that low temperature is printed.Because：
The present invention controls material rate of extrusion by gas pressure, and control is simple；It is pneumatic from piston, three kinds of extrusions of screw rod
Seen in the flow of mode, the uninterrupted of air pressure extrusion and Screw Extrusion is relevant all with being extruded the viscosity degree size of material.It is real
In the production practices of border, various heavy viscous materials all occur as a mixture, its viscosity not only can because of proportioning change and
Change, can also be influenceed by various factors such as temperature, humidity, resting period, extruded velocities.Therefore, to the change of viscosity of material degree not
Sensitive piston extrusion way is optimal selection.And the present invention is simple in construction.
The present invention is described in further detail with reference to the accompanying drawings and detailed description.
Brief description of the drawings
Fig. 1 is the structural representation of Pneumatic piston 3D printing shower nozzle of the present invention.
Fig. 2 is the outline drawing of Pneumatic piston 3D printing shower nozzle of the present invention.
Fig. 3 is the partial enlarged drawing of syringe needle in Fig. 2.
Fig. 4 is the partial enlarged drawing of check valve in Fig. 2.
In figure, upper cylinder body 11, upper cylinder cover 12, upper piston 13,
Lower cylinder body 21, lower cylinder cap 22, lower piston 23, piston rod 31 and piston spring 32,
Syringe needle 4, taper needle tubing 41, steel ball 42, compression spring 43, axial cutting ferrule 44, feed pipe 45, discharging opening
46、
Sprue 5,
Check valve 6, valve body 61, spheroid 62, spring 63, axially position cutting ferrule 64.
Embodiment
As shown in Figure 1, 2, Pneumatic piston 3D printing shower nozzle of the present invention,
Including upper cylinder body 11, upper cylinder cover 12, upper piston 13, lower cylinder body 21, lower cylinder cap 22, lower piston 23, the and of piston rod 31
Piston spring 32；
The top of upper cylinder body 11 is provided with the inlet suction port 14 for making upper cylinder body 11 be communicated with the external world, and the lower end of upper cylinder body 11 is opened
Mouthful, the upper cylinder cover 12 is threadedly coupled with the lower end of upper cylinder body 11,
The bottom of lower cylinder body 21 is provided with the discharging opening 24 communicated with syringe needle 4, the upper end open of lower cylinder body 21, the lower cylinder cap
22 are connected with the threaded upper ends of lower cylinder body 21；
The upper cylinder cover 12 is removable connected with lower cylinder cap 22；
The upper piston 13 is placed in upper cylinder body 11 with the close fit of upper cylinder body 11, and lower piston 23 and lower cylinder body 21 are closed
Ordinatedly it is placed in lower cylinder body 21, the piston rod 31 is closed to pass through upper cylinder cover 12 and lower cylinder cap 22, and one end is consolidated with upper piston 13
Even, the other end is connected with lower piston 23, and the piston spring 32 is sleeved on piston rod 31, positioned at upper piston 13 and upper cylinder cover 12
Between；
The lower sidewall of the lower cylinder body 21 is provided with sprue 5 and check valve 6, the import of the check valve 6 and lower cylinder body
Communicated in 21, its outlet is communicated with the external world, the outlet of the sprue 5 in lower cylinder body 21 with communicating, and its import is used to inject life
Thing material.
Cylinder is connected through a screw thread easy to disassemble and convenient cleaning with cylinder cover.
The specification difference that inlet suction port 14 is installed can connect various external diameter flexible pipes.
Sprue 5 can be entered the composite not arranged on year-on-year basis by syringe injection, can be according to injection bore
Size selects corresponding syringe.
Syringe needle 4 may use normal injection syringe needle, it would however also be possible to employ syringe needle as shown in Figure 3.
As shown in figure 3, the syringe needle 4 includes taper needle tubing 41, steel ball 42, compression spring 43, axial cutting ferrule 44, the cone
The major part of shape needle tubing 41, which is installed with, communicates feed pipe 45 with the bottom of lower cylinder body 21, and the microcephaly of taper needle tubing 41 is provided with discharging opening 46,
The steel ball 42 withstands feed pipe 45 and exported, and the axial outer of cutting ferrule 44 is stuck in the inwall of taper needle tubing 41, the lower end of compression spring 43 set
On axial cutting ferrule 44, upper end withstands on the bottom of steel ball 42.
Preferably, the internal diameter of the discharging opening 46 of the syringe needle 4 is 0.06~0.51mm.
As shown in figure 4,
The check valve 6 includes valve body 61, spheroid 62, spring 63, and axially position cutting ferrule 64, the spheroid 62 withstands valve body
61 are stuck in the inwall of valve body 61 with the connected entrance of lower cylinder body 21, the outer of axially position cutting ferrule 64, and spring 63 is sleeved on axially position card
On set 64, the other end is withstood on spheroid 62.
Cutting ferrule plays a position-limiting action gas installed in the inside of valve body and can exhausted through, and can pass through to rotate and pacify
It is loaded into.Spring is arranged between spheroid and axially position cutting ferrule, and steel ball is under the action of the spring by valve body under normal condition
Valve port masking sealing.
Charging aperture can be injected directly into by syringe, so that streamline operation.
Details are as follows for the course of work of the present invention：
Before extrusion, first by collagen/nano-fiber composite material freezen protective to -4 DEG C, it will be prepared in advance with syringe
Composite is expelled to inside lower cylinder body 21 by sprue 5.Inlet suction port 14 connects air pressure valve and air pump by air hose,
Air pump provides gas pressure, by the way that pressure gauge is come the size of control pressure and determines material rate of extrusion.Set and supply on appendix
Air valve, such as magnetic valve.Pass through the working condition of solenoid valve control composite.
When the steam supply valve on appendix is opened, gases at high pressure enter living in upper upper cylinder body 11, promotion by inlet suction port 14
Plug 13 is moved downward.Under the effect of piston rod 31, lower piston 23 is also moved downward, by the biomass composite in lower cylinder body 21
Extruded by syringe needle 4.
Partial high pressure gas in lower cylinder body is discharged by check valve 6, thereby may be ensured that piston rod can be pushed away normally
Dynamic lower piston 23, makes biomass composite be deposited in above forming disk.
Steam supply valve is closed or air pump is stopped, and piston rod 31 is moved upwards under the reset response of piston spring 32, from
And carry out secondary pneumatic printing.
Said process so is repeated, the effect of Pneumatic extrusion is achieved that.The material of 3D printing is finally placed low
Re-dry is freezed in incubator, so as to avoid the low-temperature control system of complexity.
Because the pressure system that compressed gas is constituted has fine motion, high flexibility, the features such as being easily controlled, the present invention can be carried
For the pressure of approximate static pressure, technical requirements are sprayed to meet pneumatic type, so as to improve the mechanical property and knot of framework
Structure feature, meets some particular requirements of human body.
Pneumatic piston 3D printing shower nozzle of the present invention is arranged on by mounting clip sleeve on three-dimensional mobile platform, cylinder and cylinder
Lid is connected through a screw thread easy to disassemble and convenient cleaning.
Claims (4)
1. a kind of Pneumatic piston 3D printing shower nozzle, it is characterised in that：
Including upper cylinder body (11), upper cylinder cover (12), upper piston (13), lower cylinder body (21), lower cylinder cap (22), lower piston (23), work
Stopper rod (31) and piston spring (32)；
Provided with the inlet suction port (14) for making upper cylinder body (11) be communicated with the external world, upper cylinder body (11) lower end at the top of the upper cylinder body (11)
Opening, the upper cylinder cover (12) is threadedly coupled with the lower end of upper cylinder body (11),
Lower cylinder body (21) bottom is provided with the discharging opening (24) that is communicated with syringe needle (4), lower cylinder body (21) upper end open, it is described under
Cylinder cap (22) is connected with the threaded upper ends of lower cylinder body (21)；
The upper cylinder cover (12) is removable connected with lower cylinder cap (22)；
The upper piston (13) is placed in upper cylinder body (11) close fit in upper cylinder body (11), lower piston (23) and lower cylinder body
(21) it is placed in lower cylinder body (21), the piston rod (31) is closed to pass through upper cylinder cover (12) and lower cylinder cap (22) close fit,
One end is connected with upper piston (13), and the other end is connected with lower piston (23), and the piston spring (32) is sleeved on piston rod (31)
On, between upper piston (13) and upper cylinder cover (12)；
The lower sidewall of the lower cylinder body (21) is provided with sprue (5) and check valve (6), and the import of the check valve (6) is with
Communicated in cylinder body (21), its outlet is communicated with the external world, the outlet of the sprue (5) in lower cylinder body (21) with communicating, its import
For injecting biomaterial.
2. 3D printing shower nozzle according to claim 1, it is characterised in that：
The syringe needle (4) includes taper needle tubing (41), steel ball (42), compression spring (43), axial cutting ferrule (44), the taper pin
The major part of pipe (41) is installed with communicates feed pipe (45) with lower cylinder body (21) bottom, and the microcephaly of taper needle tubing (41) is provided with discharging opening
(46), the steel ball (42) withstands feed pipe (45) outlet, and axial cutting ferrule (44) outer is stuck in taper needle tubing (41) inwall, compresses
Spring (43) lower end is sleeved on axial cutting ferrule (44), and upper end withstands on steel ball (42) bottom.
3. 3D printing shower nozzle according to claim 1, it is characterised in that：
The check valve (6) includes valve body (61), spheroid (62), spring (63), axially position cutting ferrule (64), the spheroid (62)
The connected entrance of valve body (61) and lower cylinder body (21) is withstood, axially position cutting ferrule (64) outer is stuck in valve body (61) inwall, spring
(63) it is sleeved on axially position cutting ferrule (64), the other end is withstood on spheroid (62).
4. 3D printing shower nozzle according to claim 2, it is characterised in that：The internal diameter of the discharging opening (46) of the syringe needle (4)
For 0.06~0.51mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611033140.4A CN107031044A (en) | 2016-11-23 | 2016-11-23 | Pneumatic piston 3D printing shower nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611033140.4A CN107031044A (en) | 2016-11-23 | 2016-11-23 | Pneumatic piston 3D printing shower nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107031044A true CN107031044A (en) | 2017-08-11 |
Family
ID=59530938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611033140.4A Pending CN107031044A (en) | 2016-11-23 | 2016-11-23 | Pneumatic piston 3D printing shower nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107031044A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107890973A (en) * | 2017-09-25 | 2018-04-10 | 武汉船用机械有限责任公司 | Pressurize glue filling device |
| CN108995213A (en) * | 2018-09-21 | 2018-12-14 | 安徽工程大学 | A kind of adjustable self-priming anti-wire drawing 3D printing spray head of flow |
| CN109397695A (en) * | 2018-09-21 | 2019-03-01 | 安徽机电职业技术学院 | A kind of adjustable 3D printing spray head of the anti-drawing flow of more materials |
| CN111761820A (en) * | 2020-07-10 | 2020-10-13 | 扬州工业职业技术学院 | Hot-melt stirring and extruding integrated 3D printing spray head and working process thereof |
| CN111802362A (en) * | 2020-07-31 | 2020-10-23 | 北京凯强创杰文化有限公司 | Pesticide sprayer for agricultural production |
| CN114043722A (en) * | 2021-11-10 | 2022-02-15 | 华中科技大学 | Coaxial 3D printing head, related equipment of coaxial 3D printing head and hydrogel tube |
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| CN104642442A (en) * | 2013-11-25 | 2015-05-27 | 西安中科麦特电子技术设备有限公司 | Feeding device for 3D cake printing machine |
| CN104924614A (en) * | 2015-06-08 | 2015-09-23 | 浙江大学 | Rotary switching biological 3D printing sprayer for multi-material printing and rotary switching biological 3D printing method |
| CN105125315A (en) * | 2015-06-25 | 2015-12-09 | 浙江大学 | Automatic filling and cleaning nozzle used for biological tissue manufacturing and control method thereof |
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2016
- 2016-11-23 CN CN201611033140.4A patent/CN107031044A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104642442A (en) * | 2013-11-25 | 2015-05-27 | 西安中科麦特电子技术设备有限公司 | Feeding device for 3D cake printing machine |
| CN104924614A (en) * | 2015-06-08 | 2015-09-23 | 浙江大学 | Rotary switching biological 3D printing sprayer for multi-material printing and rotary switching biological 3D printing method |
| CN105125315A (en) * | 2015-06-25 | 2015-12-09 | 浙江大学 | Automatic filling and cleaning nozzle used for biological tissue manufacturing and control method thereof |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107890973A (en) * | 2017-09-25 | 2018-04-10 | 武汉船用机械有限责任公司 | Pressurize glue filling device |
| CN108995213A (en) * | 2018-09-21 | 2018-12-14 | 安徽工程大学 | A kind of adjustable self-priming anti-wire drawing 3D printing spray head of flow |
| CN109397695A (en) * | 2018-09-21 | 2019-03-01 | 安徽机电职业技术学院 | A kind of adjustable 3D printing spray head of the anti-drawing flow of more materials |
| CN109397695B (en) * | 2018-09-21 | 2020-10-30 | 安徽机电职业技术学院 | 3D prints shower nozzle with adjustable wire drawing flow is prevented to many materials |
| CN111761820A (en) * | 2020-07-10 | 2020-10-13 | 扬州工业职业技术学院 | Hot-melt stirring and extruding integrated 3D printing spray head and working process thereof |
| CN111802362A (en) * | 2020-07-31 | 2020-10-23 | 北京凯强创杰文化有限公司 | Pesticide sprayer for agricultural production |
| CN114043722A (en) * | 2021-11-10 | 2022-02-15 | 华中科技大学 | Coaxial 3D printing head, related equipment of coaxial 3D printing head and hydrogel tube |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20170811 |