CN110053260A - A kind of 3D biometric print Coaxial nozzle and its concentricity keep attachment device - Google Patents
A kind of 3D biometric print Coaxial nozzle and its concentricity keep attachment device Download PDFInfo
- Publication number
- CN110053260A CN110053260A CN201910431472.5A CN201910431472A CN110053260A CN 110053260 A CN110053260 A CN 110053260A CN 201910431472 A CN201910431472 A CN 201910431472A CN 110053260 A CN110053260 A CN 110053260A
- Authority
- CN
- China
- Prior art keywords
- attachment device
- section
- stretching out
- concentricity
- coaxial
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000007921 spray Substances 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 229910000639 Spring steel Inorganic materials 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 238000007639 printing Methods 0.000 abstract description 15
- 230000000694 effects Effects 0.000 abstract description 5
- 238000007493 shaping process Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract description 2
- 229910052751 metal Inorganic materials 0.000 abstract description 2
- 239000002184 metal Substances 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 5
- 238000010146 3D printing Methods 0.000 description 4
- 210000004027 cell Anatomy 0.000 description 4
- 210000004204 blood vessel Anatomy 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 210000001519 tissue Anatomy 0.000 description 2
- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical compound CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 description 1
- 229920001661 Chitosan Polymers 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000002473 artificial blood Substances 0.000 description 1
- 239000012620 biological material Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 210000004292 cytoskeleton Anatomy 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000017 hydrogel Substances 0.000 description 1
- 230000001900 immune effect Effects 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 235000010413 sodium alginate Nutrition 0.000 description 1
- 229940005550 sodium alginate Drugs 0.000 description 1
- 239000000661 sodium alginate Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
- B29C64/205—Means for applying layers
- B29C64/209—Heads; Nozzles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
Abstract
The invention discloses a kind of 3D biometric print Coaxial nozzles and its concentricity to keep attachment device, including bracket and connection spring.Spring is fixed between two stands, so that attachment device can stablize clamping on the tube wall of the inner tube of Coaxial nozzle.Coaxial nozzle majority used at present is that the metal tube of two different bores is nested, and structure is single, and caliber is smaller and elongated, therefore concentricity is often difficult to ensure, leads to problems such as printing shaping effect is unstable, spray head is easy to block.Under the basis of existing Coaxial nozzle structure, the present invention provides it is a kind of occupy little space, delicate structure, convenient disassembly, be simple to manufacture for guaranteeing the attachment device of coaxial 3D biometric print spray head concentricity, by to coaxial printing head installation attachment device, it can be achieved that the adjustment and holding of inner and outer pipes concentricity.The present invention occupies little space, delicate structure, influences small, replacement easy to disassemble to printing shaping, the coaxial printing head suitable for various sizes.
Description
Technical field
The present invention relates to a kind of for keeping the device of the coaxial 3D biometric print spray head of more material extruded types and its concentricity
Structure is printed for cell and biomaterial, belongs to tissue engineering technique and biological 3D printing field.
Background technique
3D printing, also known as increasing material manufacturing, lamination manufacture can refer to the process of any printing three-dimension object.3D printing is mainly
One process constantly added, is laminated raw material under the control of the computer.3D printer belongs to one kind of industrial robot.
3D biometric print is to produce cytoskeleton by 3D biometric print machine, then cell kind is entered in bracket, make cell
It is able to the technology grown.3D biometric print opens the new direction in biologic medical field, and future very likely solves tissue
The problem of organ transplant donor source shortage, immunological rejection.
The printing of 3D blood vessel is a very important branch in biological 3D printing technique, utilizes sodium alginate, chitosan etc.
It is most that cured hydrogel material, which can quickly be crosslinked, so that cell accumulation is gone out the tubular structure of some scale as bracket
The basic principle that printing type is related to.Coaxial printing is to utilize multiple material from different pipelines while flowing out one with coaxial knot
The tubulose spray head of structure is cured, to realize a kind of direct write forming technique of efficient artificial blood vessel.
Coaxial nozzle used at present is often that the metal tube of several different bores is nested, and structure is single, caliber compared with
It is small and elongated, therefore concentricity is often difficult to guarantee, leads to problems such as printing shaping effect is unstable, spray head is easy to block.?
Under the basis of existing Coaxial nozzle structure, the attachment device of its concentricity in the appropriate range can be guaranteed by being badly in need of one kind.This hair
It is bright provide it is a kind of occupy little space, delicate structure, convenient disassembly, be simple to manufacture for guaranteeing coaxial 3D biometric print spray head
The attachment device of concentricity.
Summary of the invention
Coaxial printing head structures most at present are single, and caliber is smaller and elongated, and concentricity is often difficult to ensure.The present invention
Aim to overcome that the deficiencies in the prior art, the attached of a kind of adjustment and the concentricity that keeps 3D biometric print Coaxial nozzle is provided
Feeder apparatus and printing head.
The invention discloses a kind of 3D biometric print Coaxial nozzle concentricities to keep attachment device, including first support, the
Two brackets, the first connection spring and the second connection spring；The first support is by the first section of stretching out, semi-circular segments and the second section of stretching out
Sequence is connected to form, and the first section of stretching out and the second section of stretching out equal length are simultaneously located at semi-circular segments both ends；The second support and the
One supporting structure is identical；First support is connected with the first section of stretching out of second support by the first connection spring, the second section of stretching out
It is connected by the second connection spring.
Preferably, the first connection spring and the second connection spring are carbon spring steel tension spring.
Preferably, the center of circle of the first support and second support semi-circular segments is overlapped.
A kind of concentricity guarantor that attachment device is kept using 3D biometric print Coaxial nozzle concentricity is also disclosed in the present invention
Method is held, respectively by multiple attachment device clampings on the tube wall of inner tube, and makes two adjacent attachment devices
Section of stretching out direction is mutually perpendicular to；Inner tube is installed to spray head rear portion and is connected with nozzle body；By outer tube sleeve outside inner tube, and install
It is connected to spray head rear portion with nozzle body.
A kind of Coaxial nozzle for keeping concentricity, including nozzle body, inner tube, outer tube and multiple institutes is also disclosed in the present invention
The attachment device stated, attachment device are arranged on inner pipe, and the section of stretching out of adjacent attachment device is towards orthogonal；Outer tube sleeve exists
Outside inner tube；First section of stretching out of attachment device and the second section of stretching out end are against outer tube wall；Inner and outer tubes with spray head master
Body is connected.
The present invention by coaxial printing head install attachment device, realize inner and outer pipes concentricity adjustment and holding, from
And solve the problems such as printing shaping effect is unstable, spray head is easy blocking.The present invention occupies little space, delicate structure, to printing
Shaping influence is small, replacement easy to disassemble, is suitable for each quasi-coaxial printing head.
Detailed description of the invention
Fig. 1 is a kind of 3D biometric print Coaxial nozzle concentricity holding attachment device section view installation diagram.
Fig. 2 is that a kind of 3D biometric print Coaxial nozzle concentricity keeps attachment device to be assemblied on Coaxial nozzle inner and outer pipes
Assemble effect picture.
Fig. 3 is a kind of assembly effect picture of 3D biometric print Coaxial nozzle for keeping concentricity.
Specific embodiment
Specific structure and the course of work of the invention are further illustrated below with reference to attached drawing 1-3 and example.
3D biometric print Coaxial nozzle concentricity of the invention keep attachment device include first support 2, second support 3,
First connection spring 1 and the second connection spring 4, the first support 2 is by the first section of stretching out, semi-circular segments and the second section of stretching out sequence
It is connected to form, the first section of stretching out and the second section of stretching out equal length are simultaneously located at semi-circular segments both ends；The second support 3 and first
2 structure of frame is identical；First support 2 is connected with the first section of stretching out of second support 3 by the first connection spring 1, the second section of stretching out
It is connected by the second connection spring 4.
Preferably, it is carbon spring steel tension spring, the first connection bullet that the first connection spring 1, second, which couples spring 4,
Specification, model, the length that spring 1, second couples spring 4 are all the same.Carbon spring steel elasticity is strong, and resistance to stress ability is strong；Tension spring is
Bear the helical spring of axial tension.The present invention couples the elastic force of spring 4 for attachment device by the first connection spring 1, second
Clamping simultaneously consolidates on inner pipe.
Preferably, first support 2, the 3 semi-circular segments center of circle of second support are overlapped, the semi-circular segments of first support 2, second support 3
It is bonded 6 outside wall surface of inner tube.
3D biometric print Coaxial nozzle concentricity of the present invention keeps the assembling process of attachment device as follows:
1) respectively by the first attachment device 5,7 clamping of the second attachment device on the tube wall of inner tube 6, and first is made to add
The section of stretching out of device 5 and the second attachment device 7 direction is mutually perpendicular to.
2) inner tube 6 is installed to spray head rear portion and is connected with nozzle body.
3) it by 8 sets of outer tube outside inner tube, and installs and is connected to spray head rear portion with nozzle body.
The step of disassembly process, is opposite with assembling process；First connection spring 1 and the second connection spring 4 are after by axial tension
First support 2 and second support 3 can be made to be separated by a distance realization quickly and easily to dismantle, clean additional dress with clear water after disassembly
It sets with spray head to remove residue.
As shown in figure 3, the invention also discloses it is a kind of keep concentricity Coaxial nozzle, including nozzle body 9, inner tube 6,
Outer tube 8 and multiple attachment devices, the attachment device are arranged on the inner tube 6, the section of stretching out court of adjacent attachment device
To orthogonal；8 sets of outer tube outside inner tube 6；First section of stretching out of attachment device and the second section of stretching out end are in outer tube 8
Wall；Inner tube 6 and outer tube 8 are connected with nozzle body.
The present embodiment not makes any form of restriction shape of the invention, material, structure etc., all according to this hair
Any simple modification, equivalent change and modification that bright technical spirit makees above embodiments belong to protection model of the invention
It encloses.
Claims (5)
1. a kind of 3D biometric print Coaxial nozzle concentricity keeps attachment device, it is characterised in that including first support (2), second
Bracket (3), the first connection spring (1) and the second connection spring (4)；The first support (2) by the first section of stretching out, semi-circular segments and
Second section of stretching out sequence is connected to form, and the first section of stretching out and the second section of stretching out equal length are simultaneously located at semi-circular segments both ends；Described
Two brackets (3) are identical as first support (2) structure；First section of stretching out of first support (2) and second support (3) passes through first
It connects spring (1) to be connected, the second section of stretching out is connected by the second connection spring (4).
2. attachment device according to claim 1, it is characterised in that first connection spring (1) and the second connection bullet
Spring (4) is carbon spring steel tension spring.
3. attachment device according to claim 1, it is characterised in that the first support (2) and second support (3) half
The center of circle of circle section is overlapped.
4. a kind of concentricity keeping method using attachment device described in claim 1, it is characterised in that:
Respectively by multiple attachment device clampings described in claim 1 on the tube wall of inner tube (6), and make adjacent two attached
The section of stretching out direction of feeder apparatus is mutually perpendicular to；Inner tube (6) are installed to spray head rear portion and are connected with nozzle body；Outer tube (8) are covered
Inner tube (6) outside, and install be connected to spray head rear portion with nozzle body.
5. a kind of Coaxial nozzle for keeping concentricity, it is characterised in that including nozzle body, inner tube (6), outer tube (8) and multiple power
Benefit require 1 described in attachment device, the attachment device is set on inner tube (6), the section of stretching out direction of adjacent attachment device
It is orthogonal；Outer tube (8) cover inner tube (6) outside；First section of stretching out of attachment device and the second section of stretching out end are against outer tube (8)
Inner wall；Inner tube (6) and outer tube (8) are connected with nozzle body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910431472.5A CN110053260A (en) | 2019-05-22 | 2019-05-22 | A kind of 3D biometric print Coaxial nozzle and its concentricity keep attachment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910431472.5A CN110053260A (en) | 2019-05-22 | 2019-05-22 | A kind of 3D biometric print Coaxial nozzle and its concentricity keep attachment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110053260A true CN110053260A (en) | 2019-07-26 |
Family
ID=67324003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910431472.5A Pending CN110053260A (en) | 2019-05-22 | 2019-05-22 | A kind of 3D biometric print Coaxial nozzle and its concentricity keep attachment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110053260A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205278555U (en) * | 2016-01-04 | 2016-06-01 | 安徽省振华科技工业有限公司 | But expansion card hoop |
| CN107127972A (en) * | 2017-07-05 | 2017-09-05 | 华明进 | Continuous fiber reinforced composite materials increasing material manufacturing shower nozzle and printer |
| CN207094072U (en) * | 2017-08-08 | 2018-03-13 | 厦门同力节能科技有限公司 | A kind of insulating tube |
| CN109058609A (en) * | 2018-10-22 | 2018-12-21 | 中船动力有限公司 | Tube support device in combustion gas double walled ducting |
| US20190008998A1 (en) * | 2017-01-12 | 2019-01-10 | The George Washington University | Coaxial needle for fabricating a multi scale, multi layer blood vessel or vascular network employing 3d bioprinting |
| CN109435243A (en) * | 2018-12-17 | 2019-03-08 | 浙江大学 | A kind of novel extrusion formula biology 3D printing Coaxial nozzle and its method |
| CN210174208U (en) * | 2019-05-22 | 2020-03-24 | 浙江大学 | 3D biological printing coaxial nozzle and coaxiality keeping additional device thereof |
-
2019
- 2019-05-22 CN CN201910431472.5A patent/CN110053260A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205278555U (en) * | 2016-01-04 | 2016-06-01 | 安徽省振华科技工业有限公司 | But expansion card hoop |
| US20190008998A1 (en) * | 2017-01-12 | 2019-01-10 | The George Washington University | Coaxial needle for fabricating a multi scale, multi layer blood vessel or vascular network employing 3d bioprinting |
| CN107127972A (en) * | 2017-07-05 | 2017-09-05 | 华明进 | Continuous fiber reinforced composite materials increasing material manufacturing shower nozzle and printer |
| CN207094072U (en) * | 2017-08-08 | 2018-03-13 | 厦门同力节能科技有限公司 | A kind of insulating tube |
| CN109058609A (en) * | 2018-10-22 | 2018-12-21 | 中船动力有限公司 | Tube support device in combustion gas double walled ducting |
| CN109435243A (en) * | 2018-12-17 | 2019-03-08 | 浙江大学 | A kind of novel extrusion formula biology 3D printing Coaxial nozzle and its method |
| CN210174208U (en) * | 2019-05-22 | 2020-03-24 | 浙江大学 | 3D biological printing coaxial nozzle and coaxiality keeping additional device thereof |
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