CN206344461U - The biological 3D printing shower nozzle of Pneumatic extrusion Automatic-feeding - Google Patents
The biological 3D printing shower nozzle of Pneumatic extrusion Automatic-feeding Download PDFInfo
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- CN206344461U CN206344461U CN201621254407.8U CN201621254407U CN206344461U CN 206344461 U CN206344461 U CN 206344461U CN 201621254407 U CN201621254407 U CN 201621254407U CN 206344461 U CN206344461 U CN 206344461U
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Abstract
The utility model discloses a kind of biological 3D printing shower nozzle of Pneumatic extrusion Automatic-feeding, including housing (1), barrel (21), material storing box (22), syringe needle (3), also include cylinder (4), upper piston (51), lower piston (52), the upper piston (51) and cylinder (4) inwall close fit, lower piston (52) and barrel (21) inwall close fit, also include piston rod (53), its one end is connected with upper piston (51), the other end is connected with lower piston (52), cylinder (4) upper end is communicated with air inlet (6), tank (71) is provided between the housing (1) and barrel (21).Biological 3D printing shower nozzle of the present utility model, by Pneumatic extrusion Automatic-feeding, realizes that biomaterial low temperature is printed.
Description
Technical field
The utility model, which belongs to cell and biomaterial 3D printing technique field, particularly one kind, can realize that low temperature is printed
Pneumatic extrusion Automatic-feeding biological 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 critical component is exactly that shower nozzle also has purchasing for material in addition.
The biological 3D printing shower nozzle of the rotation switching mode towards multiple material printing of Zhejiang University's research realizes single spraying
Printing of the head to multiple material, is feasible for some high-temperature materials, but for some cryogenic materials, such as in 30 DEG C of temperature
The composites such as collagen/nanofiber of material property could more preferably be ensured below, it is difficult to realize 3D printing.
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
The purpose of this utility model is the biological 3D printing shower nozzle for providing a kind of Pneumatic extrusion Automatic-feeding, can realize
Low temperature is printed.
The technical solution for realizing the utility model purpose is：
A kind of biological 3D printing shower nozzle of Pneumatic extrusion Automatic-feeding, including housing, be placed in housing barrel, be placed in shell
External material storing box, the barrel is communicated by conveying pipeline with material storing box, in addition to syringe needle, and the syringe needle passes through housing lower end,
Its import is communicated with barrel bottom, and outlet is located at outside housing, in addition to is placed in the cylinder on barrel top, is placed in the cylinder
Upper piston, the lower piston being placed in barrel, the upper piston and cylinder inner wall close fit, lower piston with material tube inner wall is closed matches somebody with somebody
Conjunction, in addition to piston rod, its hermetically passing cylinder lower end, one end are connected with upper piston, and the other end is connected with lower piston, piston rod
Spring is partly set between upper piston and cylinder bottom, the housing upper end is provided with air inlet, and the cylinder upper end is with entering
Gas port is communicated, and tank is provided between the housing and barrel, and it is by the water inlet and delivery port on housing wall and outside
Boundary is communicated.
Compared with prior art, its remarkable advantage is the utility model：
It can realize that low temperature is printed.Because：
The utility model controls material rate of extrusion by gas pressure, and control is simple；
Pass through circulating for cooling water, it is ensured that barrel base material is sufficiently cooled, so as to realize that low temperature is printed.
The utility model 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 the biological 3D printing shower nozzle of the utility model Pneumatic extrusion Automatic-feeding.
Fig. 2 is the outline drawing of the biological 3D printing shower nozzle of the utility model Pneumatic extrusion Automatic-feeding.
Fig. 3 is the partial enlarged drawing of syringe needle in Fig. 1.
In figure,
Housing 1, upper shell 11, lower house 12, casing bolts 13,
Barrel 21, material storing box 22, conveying pipeline 23, inlet valve 24,
Syringe needle 3, taper needle tubing 31, steel ball 32, compression spring 33, axial cutting ferrule 34, feed pipe 35, discharging opening 36,
Cylinder 4, cylinder body 41, cylinder cap 42, cylinder bolt 43, gas passage 44,
Upper piston 51, lower piston 52, piston rod 53, spring 54,
Outer spiral cover 6,
Tank 71, water inlet 72, delivery port 73.
Embodiment
As shown in figure 1, the biological 3D printing shower nozzle of the utility model Pneumatic extrusion Automatic-feeding,
Including housing 1, the barrel being placed in housing 1 21, the material storing box 22 being placed in outside housing 1, the barrel 21 is by defeated
Expects pipe 23 is communicated with material storing box 22,
Also include syringe needle 3, the syringe needle 3 passes through the lower end of housing 1, and its import is communicated with the bottom of barrel 21, and outlet is located at shell
Outside body 1,
Also include being placed in the cylinder 4 on the top of barrel 21, the upper piston 51 being placed in the cylinder 4, being placed in barrel 21
Lower piston 52, the upper piston 51 and the inwall close fit of cylinder 4, lower piston 52 and the inwall close fit of barrel 21, in addition to
Piston rod 53, its lower end of hermetically passing cylinder 4, one end is connected with upper piston 51, and the other end is connected with lower piston 52, piston rod 53
Spring 54 is partly set between upper piston 51 and the bottom of cylinder 4,
The housing upper end is provided with air inlet, and the upper end of cylinder 4 is communicated with air inlet,
Tank 71 is provided between the housing 1 and barrel 21, it passes through the water inlet 72 on the wall of housing 1 and water outlet
Mouth 73 is communicated with the external world.
The air inlet is used to be connected with high-pressure air source, such as air pump.By pressure gauge come the size of control pressure and decision
Material rate of extrusion.Control is simple.
The water inlet 72 and delivery port 73 are used to be connected with cooling water pump, pass through circulating for cooling water, it is ensured that material
Cylinder base material is sufficiently cooled.
As shown in Figure 1, 2,
The housing 1 includes upper shell 11 and lower house 12, and upper shell 11 is removable by casing bolts 13 with lower house 12
Formula is fixedly connected.
As shown in figure 1,
The cylinder 4 includes cylinder body 41 and the cylinder cap 42 being connected with its threaded upper ends, and the cylinder cap 42 passes through cylinder bolt
43 are packed in upper shell 11, and the top of cylinder cap 42 is provided with the gas passage 44 communicated with housing upper end air inlet.
As shown in figure 1,
The upper end open of upper shell 11, is connected, the air inlet is located on outer spiral cover 6 with an outer screw thread of spiral cover 6.
As shown in figure 1,
The material storing box 22 is located at the outside of lower house 12, and inlet valve is provided with the conveying pipeline 23 communicated with material storing box 22
24。
As shown in figure 3,
The syringe needle 3 include taper needle tubing 31, steel ball 32, compression spring 33, axial cutting ferrule 34, the taper needle tubing 31
Major part is installed with and feed pipe 35 is communicated with the bottom of barrel 21, and the microcephaly of taper needle tubing 31 is provided with discharging opening 36, and the steel ball 32 is pushed up
Live in expects pipe 35 to export, the axial outer of cutting ferrule 34 is stuck in the inwall of taper needle tubing 31, the lower end of compression spring 33 is sleeved on axial cutting ferrule
On 34, upper end withstands on the bottom of steel ball 32.
Operation principle of the present utility model is as follows：
Before extrusion, first collagen/nano-fiber composite material is injected in storing casing 22, extraneous gases at high pressure appendix
Air inlet on upper shell 11 is connected with air opening valve and air pump.Air pump provides gas pressure, is controlled by pressure gauge
The size of pressure simultaneously determines material rate of extrusion.Steam supply valve, such as magnetic valve are set on appendix.Pass through solenoid valve control composite wood
The working condition of material.
Before printing is realized, biomass composite is stored in storing casing 22.Inlet valve 24 is closed, and works as appendix
On steam supply valve open, gases at high pressure enter cylinder 4, promote upper piston 51 move downward.Under the effect of piston rod 53, lower piston
52 are also moved downward, and the gas inside barrel 21 is discharged by syringe needle 3.Then the steam supply valve on appendix is closed, upper piston
51 move upwards under the reset response of spring 54.Now, the inlet valve 24 of material storing box 22 is opened, composite liquid can be inhaled
In feeding cylinder 21.Again, steam supply valve is opened, inlet valve 24 is closed, upper piston 51 promotes lower piston 52 under gas pressure effect,
Lower piston 52 promotes the fluent material in barrel 21 to be sprayed by syringe needle 3.While printing, the water inlet 72 of tank 71, water outlet
Mouth 73 accesses cooling water pumps, passes through circulating for cooling water, it is ensured that barrel base material is sufficiently cooled.
Said process so is repeated, the effect of Pneumatic extrusion and low-temperature protection biological material is achieved that.Finally
The material of 3D printing is placed in cryogenic box and freezes re-dry, so as to avoid the low-temperature control system of complexity, the design of this patent
3D printing biomaterial is set simply to manipulate.
Because the pressure system that compressed gas is constituted has a fine motion, high flexibility, the features such as being easily controlled, the utility model can
To provide the pressure of approximate static pressure, technical requirements are sprayed to meet pneumatic type, so as to improve the mechanical property of framework
And architectural feature, meet some particular requirements of human body.
Claims (6)
1. a kind of biological 3D printing shower nozzle of Pneumatic extrusion Automatic-feeding, it is characterised in that：
Including housing (1), the barrel (21) being placed in housing (1), it is placed in the material storing box (22) of housing (1) outside, the barrel
(21) communicated by conveying pipeline (23) with material storing box (22),
Also include syringe needle (3), the syringe needle (3) passes through housing (1) lower end, and its import is communicated with barrel (21) bottom, and outlet is set
In housing (1) outside,
Also include be placed in barrel (21) top cylinder (4), be placed in the cylinder (4) upper piston (51), be placed in barrel
(21) lower piston (52) in, the upper piston (51) and cylinder (4) inwall close fit, lower piston (52) are interior with barrel (21)
Wall close fit, in addition to piston rod (53), its hermetically passing cylinder (4) bottom, one end and upper piston (51) are connected, the other end with
Lower piston (52) is connected, and piston rod (53) is located at partly is set with spring (54) between upper piston (51) and cylinder (4) bottom,
The housing upper end is provided with air inlet, and cylinder (4) upper end is communicated with air inlet,
Tank (71) is provided between the housing (1) and barrel (21), it passes through the water inlet (72) on housing (1) wall
Communicated with delivery port (73) with the external world.
2. biological 3D printing shower nozzle according to claim 1, it is characterised in that：
The housing (1) includes upper shell (11) and lower house (12), and upper shell (11) passes through casing bolts with lower house (12)
(13) it is removable to be fixedly connected.
3. biological 3D printing shower nozzle according to claim 2, it is characterised in that：
The cylinder (4) includes cylinder body (41) and the cylinder cap (42) being connected with its threaded upper ends, and the cylinder cap (42) passes through cylinder cap
Bolt (43) is packed in upper shell (11), and cylinder cap (42) top is provided with the gas passage communicated with housing upper end air inlet
(44)。
4. biological 3D printing shower nozzle according to claim 3, it is characterised in that：
Upper shell (11) upper end open, is connected, the air inlet is located on outer spiral cover (6) with outer spiral cover (6) screw thread.
5. biological 3D printing shower nozzle according to claim 2, it is characterised in that：
The material storing box (22) is located on the outside of lower house (12), provided with charging on the conveying pipeline (23) communicated with material storing box (22)
Valve (24).
6. biological 3D printing shower nozzle according to claim 1, it is characterised in that：
The syringe needle (3) includes taper needle tubing (31), steel ball (32), compression spring (33), axial cutting ferrule (34), the taper pin
The major part of pipe (31) is installed with communicates feed pipe (35) with barrel (21) bottom, and the microcephaly of taper needle tubing (31) is provided with discharging opening
(36), the steel ball (32) withstands feed pipe (35) outlet, and axial cutting ferrule (34) outer is stuck in taper needle tubing (31) inwall, compresses
Spring (33) lower end is sleeved on axial cutting ferrule (34), and upper end withstands on steel ball (32) bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621254407.8U CN206344461U (en) | 2016-11-23 | 2016-11-23 | The biological 3D printing shower nozzle of Pneumatic extrusion Automatic-feeding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621254407.8U CN206344461U (en) | 2016-11-23 | 2016-11-23 | The biological 3D printing shower nozzle of Pneumatic extrusion Automatic-feeding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206344461U true CN206344461U (en) | 2017-07-21 |
Family
ID=59318372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621254407.8U Expired - Fee Related CN206344461U (en) | 2016-11-23 | 2016-11-23 | The biological 3D printing shower nozzle of Pneumatic extrusion Automatic-feeding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206344461U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107234806A (en) * | 2017-07-27 | 2017-10-10 | 杭州捷诺飞生物科技股份有限公司 | A kind of fusion sediment type 3D printing method based on the prefabricated bar of boiomacromolecule |
| CN107310150A (en) * | 2017-08-07 | 2017-11-03 | 长沙远达华信息科技有限公司 | A kind of 3D printer for being used to print architectural design model |
| CN107443724A (en) * | 2017-08-31 | 2017-12-08 | 长沙远达华信息科技有限公司 | The biological 3D printing shower nozzle of Pneumatic extrusion Automatic-feeding |
| CN109049684A (en) * | 2018-11-05 | 2018-12-21 | 苏炜 | A kind of increasing material manufacturing multi-angle stacking printing device |
| CN109227876A (en) * | 2018-10-27 | 2019-01-18 | 长沙鑫元科技有限公司 | A kind of molding equipment of clay sculpture printer |
-
2016
- 2016-11-23 CN CN201621254407.8U patent/CN206344461U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107234806A (en) * | 2017-07-27 | 2017-10-10 | 杭州捷诺飞生物科技股份有限公司 | A kind of fusion sediment type 3D printing method based on the prefabricated bar of boiomacromolecule |
| CN107310150A (en) * | 2017-08-07 | 2017-11-03 | 长沙远达华信息科技有限公司 | A kind of 3D printer for being used to print architectural design model |
| CN107443724A (en) * | 2017-08-31 | 2017-12-08 | 长沙远达华信息科技有限公司 | The biological 3D printing shower nozzle of Pneumatic extrusion Automatic-feeding |
| CN109227876A (en) * | 2018-10-27 | 2019-01-18 | 长沙鑫元科技有限公司 | A kind of molding equipment of clay sculpture printer |
| CN109227876B (en) * | 2018-10-27 | 2020-09-22 | 台州市耶丽亚科技有限公司 | Molding equipment of clay printer |
| CN109049684A (en) * | 2018-11-05 | 2018-12-21 | 苏炜 | A kind of increasing material manufacturing multi-angle stacking printing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170721 Termination date: 20191123 |