CN208020756U - A kind of biomaterial 3D printer mostly goes out nozzle into one - Google Patents
A kind of biomaterial 3D printer mostly goes out nozzle into one Download PDFInfo
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- CN208020756U CN208020756U CN201820014356.4U CN201820014356U CN208020756U CN 208020756 U CN208020756 U CN 208020756U CN 201820014356 U CN201820014356 U CN 201820014356U CN 208020756 U CN208020756 U CN 208020756U
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- nozzle
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- feed opening
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Abstract
The utility model is related to a kind of biomaterial 3D printers mostly to go out nozzle into one, the nozzle includes a cone of a cylinder and the gradual change of cylinder lower part above, be uniformly distributed along the circumference multiple feed openings in cylinder, the side of cylinder has the mounting hole of stationary nozzle, there are one discharge holes at cone center, each feed opening includes straightway and angled transition section, and be connected to discharge hole by angled transition section, and each feed opening be not also connected to independently of one another, mutually with discharge hole connectivity part；The lower end of the discharge hole connects nozzle.The problem of nozzle structure of the utility model is mostly to go out into one, solves existing biomaterial 3D printer and needs multiple syringes when printing multiple material, and joining place printing is unstable, material discontinuity.
Description
Technical field
The utility model is related to 3D printing fields, and in particular to a kind of biomaterial 3D printer mostly goes out nozzle into one.
Background technology
3D printing grows up on the basis of laser melting coating and rapid prototyping technology, it is a kind of with mathematical model text
Based on part, with dusty material, the technology of object is constructed by layer-by-layer printing.It is will to be designed in computer
Threedimensional model be layered, obtain 2-d plane graph, the material of various materials recycled successively to print X-Y scheme, stack
As the 3D solid with rapid solidification structure feature.
In recent years, 3D printing becomes the emerging technology that the whole world is attracted attention.Have been widely used for manufacturing industry, space flight at present
The fields such as industry.3D printing biomedical sector application at present mostly to manufacture anatomical model, surgical instruments, implant and vacation
Based on body.
3D biometric print technologies develop into living tissue printing and Organ printing bring hope and dawn.3D printing quilt
It is described as the representative art of " the third time industrial revolution ", and 3D biometric prints are 3D printing technique forefront and most rich vitality
Research field.3D biometric prints may be defined as using special biometric print machine as main means, with process active material include cell,
Growth factor, biomaterial etc. are main contents, are main syllabus target interdiscipline and field to rebuild tissue and organ
New Regenerated engineering in medicine technology.
Due to by the particularity of printed material, being especially directed to cell, gel etc. biomaterial, pair with these materials
Expect that more stringent requirements are proposed for compatibility, biocompatibility, long term physical chemical stability of printing tool face of contact etc..
Traditional biomaterial 3D printer nozzle (needle tubing) is much made of Cu alloy material, with the development of technology, increasingly
It cannot satisfy the use demand.And common titanium alloy material, such as Ti-6Al-4V alloys, it is right since the alloy contains element V
Human body has potential toxicity, can not fully meet requirement.
Also, traditional biomaterial 3D printer mostly uses more barrel designs, a kind of material is housed in each syringe, so
It is printed respectively according to design requirement afterwards, although this design is simple and convenient, when switching different materials, be easy to cause joining place
It is uneven, discontinuously, cause the consistency by printed material bad.
Utility model content
To solve the above problems, a kind of biomaterial 3D printer of the utility model offer mostly goes out nozzle into one, can solve
The certainly above problem of nozzle in the prior art.
To achieve the above object, the technical scheme that the utility model is provided is as follows：
A kind of biomaterial 3D printer mostly goes out nozzle into one, and the nozzle includes a cylinder and cylinder above
One cone of lower part gradual change, be uniformly distributed along the circumference in cylinder multiple feed openings, and the side of cylinder has stationary nozzle
Mounting hole, there are one discharge holes at cone center, and each feed opening includes straightway and angled transition section, and passes through angled transition
Section is connected to discharge hole, and each feed opening be not also connected to independently of one another, mutually with discharge hole connectivity part；The discharge hole
Lower end connects nozzle.
Further, a diameter of Φ 38-42mm of the cylinder, are highly 20-30mm, and the height of cone is 25-
The aperture of 30mm, feed opening straightway are Φ 7-8mm, and the aperture of discharge hole is Φ 4-5mm, and the aperture of angled transition section gradually becomes
Small, the angled transition section of each feed opening is Φ 1.2-2mm with the minimum-value aperture of discharge hole junction, and the aperture of the nozzle is
Φ0.45-0.55mm。
Further, each feed opening machining internal thread of the cylinder upper surface, for being connect with charging syringe；Installation
The internal thread for installation is machined at hole, the inner wall of discharge hole is also machined with internal thread, and is connect with nozzle by the screw thread.
Further, the feed opening of the nozzle, discharge hole inner surface roughness be Ra0.1-Ra0.2.
Further, the nozzle is to use the titanium alloy precision casting technological forming blank, then carries out surface machinery
Processing, makes screw thread and feed opening, the grinding of discharge hole inner wall, polishing form.
Further, the nozzle is the titanium alloy powder being prepared into using the titanium alloy, is then sent using laser synchronization
Then powder increases material manufacturing technology shaping blank carries out surface mechanical processing, make screw thread and feed opening, the grinding of discharge hole inner wall,
Polishing forms.
Further, the feed opening that nozzle is mostly gone out into one is 2-8.
Further, the feed opening that nozzle is mostly gone out into one is 6.
The biomaterial includes cell, the materials such as hydrogel.
The printer head is made of titanium alloy, and the titanium alloy is made of following component：Al3.5-4.5wt%,
Zr 1.0-1.4wt%, Cr2.5-3.5wt%, Mn13-15wt%, Si19-21wt%, Fe1.8-2.2wt%, Cu2.2-
2.4wt%, Ce0.1-0.2wt%, surplus are Ti and inevitable impurity
It is preferred that the titanium alloy is made of following component：Al4.0wt%, Zr 1.2wt%, Cr3.0wt%,
Mn14wt%, Si20wt%, Fe2.0wt%, Cu2.3wt%, Ce0.15wt%, surplus are Ti and inevitable impurity；
Compared with prior art, the technical solution of the utility model has the following advantages：
1. the nozzle structure of the utility model is mostly to go out into one, it is a variety of in printing to solve existing biomaterial 3D printer
Need multiple syringes when material, the problem of joining place printing is unstable, material discontinuity.
2. the size design of the nozzle structure of the utility model, which is fully considered to material, flows smoothness, cylinder and cone
Stationarity of height dimension when determining switching material, when size is higher by the maximum value of above range, be easy fracture, size is low
When the minimum value of above range, it is difficult to control；The aperture and inner wall finish of feed opening and discharge hole be not in above range
When interior, biomaterial smooth cannot flow out.Determine that propulsion meets 3D printing needs by the speed of printed material and flow.
Description of the drawings
By reading the detailed description of hereafter preferred embodiment, various other advantages and benefit are common for this field
Technical staff will become clear.Attached drawing only for the purpose of illustrating preferred embodiments, and is not considered as to this practicality
Novel limitation.And throughout the drawings, the same reference numbers will be used to refer to the same parts.In the accompanying drawings：
Fig. 1 shows the formalness schematic diagram of the nozzle of the utility model；
Fig. 2 shows the cross-sectional views of the nozzle of the utility model.
Specific implementation mode
Below with reference to the illustrative embodiments that the disclosure is more fully described.Although showing the exemplary of the disclosure
Embodiment, it being understood, however, that may be realized in various forms the disclosure without should be limited by embodiments set forth herein
System.It is to be able to be best understood from the disclosure on the contrary, providing these embodiments, and can be complete by the scope of the present disclosure
Whole is communicated to those skilled in the art.
Specific implementation mode according to the present utility model proposes that a kind of biomaterial 3D printer mostly goes out nozzle 100 into one,
The nozzle 100 includes a cone 102 of a cylinder 101 above and the gradual change of cylinder lower part, edge in cylinder
6 feed openings 106 of circumference uniform distribution, the side of cylinder have the mounting hole (not shown) of stationary nozzle, and cone center has one
A discharge hole 108, each feed opening 106 include straightway 109 and angled transition section 110, and by angled transition section 110 with go out
Expect that hole 108 is connected to, and each feed opening 106 be not also connected to independently of one another, mutually with 108 connectivity part of discharge hole；The discharging
The lower end in hole 108 connects nozzle 103；The printer head is made of titanium alloy, and the titanium alloy is made of following component：
Al4.0wt%, Zr 1.2wt%, Cr3.0wt%, Mn14wt%, Si20wt%, Fe2.0wt%, Cu2.3wt%,
Ce0.15wt%, surplus are Ti and inevitable impurity.In the embodiment, a diameter of Φ 40mm of the cylinder are high
Degree is 25mm, and the height of cone is 27mm, and the aperture of feed opening straightway is Φ 7.5mm, and the aperture of discharge hole is Φ
The aperture of 4.5mm, angled transition section taper into, the minimum-value aperture of the angled transition section and discharge hole junction of each feed opening
Aperture for Φ 1.5mm, the nozzle is Φ 0.5mm.Each feed opening machining internal thread 107 of the cylinder upper surface,
For being connect with charging syringe 104；Syringe with for driving the air inlet pipe 105 of material to connect.It is machined at mounting hole for pacifying
The inner wall of the internal thread of dress, discharge hole is also machined with internal thread, and is connect with nozzle by the screw thread.The nozzle is using institute
The titanium alloy powder that titanium alloy is prepared into is stated, laser synchronization powder feeding increases material manufacturing technology shaping blank is then used, then carries out
Surface is machined, and makes screw thread and feed opening, the grinding of discharge hole inner wall, polishing form.Control the charging of the nozzle
Hole, discharge hole inner surface roughness be Ra0.1-Ra0.2.
The preferable specific implementation mode of the above, only the utility model, but the scope of protection of the utility model is not
It is confined to this, any one skilled in the art within the technical scope disclosed by the utility model, can readily occur in
Change or replacement, should be covered within the scope of the utility model.Therefore, the scope of protection of the utility model should be with
Subject to the scope of the claims.
Claims (6)
1. a kind of biomaterial 3D printer mostly goes out nozzle into one, which is characterized in that the nozzle includes a cylinder above
Body and a cone of cylinder lower part gradual change, be uniformly distributed along the circumference in cylinder multiple feed openings, and the side of cylinder has
The mounting hole of stationary nozzle, there are one discharge holes at cone center, and each feed opening includes straightway and angled transition section, and is led to
It crosses angled transition section to be connected to discharge hole, and each feed opening be not also connected to independently of one another, mutually with discharge hole connectivity part；Institute
State the lower end connection nozzle of discharge hole.
2. biomaterial 3D printer as described in claim 1 mostly goes out nozzle into one, which is characterized in that the cylinder it is straight
Diameter is Φ 38-42mm, is highly 20-30mm, and the height of cone is 25-30mm, and the aperture of feed opening straightway is Φ 7-
8mm, the aperture of discharge hole are Φ 4-5mm, and the aperture of angled transition section tapers into, the angled transition section of each feed opening with go out
Expect that the minimum-value aperture of hole junction is Φ 1.2-2mm, the aperture of the nozzle is Φ 0.45-0.55mm.
3. biomaterial 3D printer as described in claim 1 mostly goes out nozzle into one, which is characterized in that the cylinder upper table
Each feed opening machining internal thread in face, for being connect with charging syringe；It is machined with the internal thread for installation at mounting hole, goes out
The inner wall in material hole is also machined with internal thread, and is connect with nozzle by the screw thread.
4. biomaterial 3D printer as described in claim 1 mostly goes out nozzle into one, which is characterized in that the charging of the nozzle
Hole, discharge hole inner surface roughness be Ra0.1-Ra0.2.
5. biomaterial 3D printer as described in claim 1 mostly goes out nozzle into one, which is characterized in that described mostly to go out spray into one
The feed opening of head is 2-8.
6. biomaterial 3D printer as claimed in claim 5 mostly goes out nozzle into one, which is characterized in that described mostly to go out spray into one
The feed opening of head is 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820014356.4U CN208020756U (en) | 2018-01-04 | 2018-01-04 | A kind of biomaterial 3D printer mostly goes out nozzle into one |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820014356.4U CN208020756U (en) | 2018-01-04 | 2018-01-04 | A kind of biomaterial 3D printer mostly goes out nozzle into one |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208020756U true CN208020756U (en) | 2018-10-30 |
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ID=63901654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820014356.4U Active CN208020756U (en) | 2018-01-04 | 2018-01-04 | A kind of biomaterial 3D printer mostly goes out nozzle into one |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208020756U (en) |
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2018
- 2018-01-04 CN CN201820014356.4U patent/CN208020756U/en active Active
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