CN106393678B - A kind of nozzle suitable for continuous fiber reinforced composite materials 3D printing - Google Patents
A kind of nozzle suitable for continuous fiber reinforced composite materials 3D printing Download PDFInfo
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- CN106393678B CN106393678B CN201611026706.0A CN201611026706A CN106393678B CN 106393678 B CN106393678 B CN 106393678B CN 201611026706 A CN201611026706 A CN 201611026706A CN 106393678 B CN106393678 B CN 106393678B
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- trunnion
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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
Abstract
The invention belongs to 3D printing fields, it is related to a kind of nozzle suitable for continuous fiber reinforced composite materials 3D printing, including printing head, internal chamber wall, fiber trunnion, temperature sensor, block, heating rod, resin nozzle, resin trunnion and Teflon, the bond effect of resin and fiber can be improved, plug is prevented, and is convenient to clean nozzle.Printing head is detachably connected on fiber trunnion lower end, and block is detachably connected on the upper end of internal chamber wall, and nested heating rod and temperature sensor, fiber trunnion upper end are detachably connected in block in block, and fiber trunnion lower end is detachably connected on internal chamber wall lower end；Resin nozzle is detachably connected on resin trunnion lower end, and resin trunnion is detachably connected in block, and the inside of resin trunnion is cased with cricoid Teflon.Fiber trunnion is equipped with multiple perforative inclined holes tilted down, and the axis of inclined hole and the angle of the axis of fiber trunnion are less than 90 degree.Internal chamber wall, block, resin nozzle, resin trunnion are metal material.
Description
Technical field
The invention belongs to 3D printing fields, more specifically, being related to a kind of suitable for continuous fiber reinforced composite materials 3D
The nozzle of printing.
Background technology
3D printing technique is an emerging technology fast-developing in manufacture field, is referred to as " having third time
The manufacturing technology of industrial revolution important symbol meaning ", each Main Developed Countries are classified as the key technology of strategic development.Mesh
Before, 3D printing technique relies on multiple ambit sophisticated technologies, in aeronautical and space technology, vehicle appliance manufacture production, biology doctor
The fields such as medicine, food processing have obtained certain application.Compared with traditional manufacturing technology, 3D printing three-dimensional fast shaping manufacturing technology
The processing and manufacturing of product mold is omitted, to greatly shorten the lead time of product in time, improves productivity
With reduction production cost.There is very big development potentiality in terms of economic benefit and foreground, according to international quickly manufacturing authority
Report《Wohlers Report 2011》The investigation result of publication shows that global 3D printing industry production value was at 1988 to 2010
Increased with 26.2% average annual speed between year.Address prediction, 3D printing industry future will still remain increases speed quickly
Degree arrives the year two thousand twenty, including the industry gross output value including device fabrication and service is up to 5,200,000,000 dollars.It is new the worlds in 2012
In technology trends investigation, 3D printing manufacturing technology ranks first.Currently, existing increases material manufacturing technology also face it is all multi-party
The bottleneck in face and exploration expand its application field therefore, it is necessary to further further investigate.
The fibre reinforced composites product printed using 3D printing technique, not only has high intensity, high rigidity, quality
The features such as light, and can be with the distribution arrangement of control fiber, to control the performance of product.The 3D of fibre reinforced composites is beaten
Print technology is either all of great significance in civilian or military affairs.For example, making automobile using carbon fibre composite
Parts promote automotive performance and reduce oil consumption；Carbon fibre composite product covers each position of space flight optical remote sensor,
Such as camera lens barrel, camera support, hood, truss.Increasingly by the fast development of printed material and increases material manufacturing technology
Maturation, the 3D printing technique based on fibre reinforced composites will be applied to all trades and professions, push the quick hair of manufacturing industry
Exhibition.
But current continuous fiber reinforced composite materials 3D printing technique research is less, is still in development phase, exists
Problems.For example, resin be unable to fully enter filament band inside, can not by each filament by resin-bonded one
It rises, to form cavity in printing inside workpiece, seriously reduces the mechanical property of workpiece.In addition, continuous lod is compound
Material 3D printing is easy plug, so as to cause fiber can not wire vent or resin overflowed outward inside nozzle.
Invention content
The invention mainly solves the technical problem of providing a kind of suitable for continuous fiber reinforced composite materials 3D printing
Nozzle can improve the bond effect of resin and fiber, prevent plug, and be convenient to clean nozzle.
In order to solve the above technical problems, the invention belongs to 3D printing fields, more specifically, being related to a kind of be suitable for continuously
The nozzle of fibre reinforced composites 3D printing, including printing head, internal chamber wall, fiber trunnion, temperature sensor, block, plus
Hot pin, resin nozzle, resin trunnion and Teflon, can improve the bond effect of resin and fiber, prevent plug, and be convenient for
Clear up nozzle.
The printing head is detachably connected on fiber trunnion lower end, and the block is detachably connected on the upper of internal chamber wall
End, nested heating rod and temperature sensor, fiber trunnion upper end are detachably connected in block in the block, fiber
Trunnion lower end is detachably connected on internal chamber wall lower end；Resin nozzle is detachably connected on resin trunnion lower end, and resin trunnion is removable
It unloads and is connected in block, the inside of resin trunnion is cased with cricoid Teflon.
The fiber trunnion is equipped with multiple perforative inclined holes tilted down, the axis of the axis and fiber trunnion of inclined hole
Angle be less than 90 degree.
The internal chamber wall, block, resin nozzle, resin trunnion are metal material.
As advanced optimizing for the technical program, the present invention is a kind of to be suitable for continuous fiber reinforced composite materials 3D printing
Nozzle described in fiber trunnion include conical section, vertical section and through-hole, conical section is connected with vertical section, and conical section is located at
The upper end of fiber trunnion is equipped with through-hole at the tip of conical section.
As advanced optimizing for the technical program, the present invention is a kind of to be suitable for continuous fiber reinforced composite materials 3D printing
Nozzle described in fiber trunnion on inclined hole be located in vertical section and be respectively positioned in internal chamber wall.
As advanced optimizing for the technical program, the present invention is a kind of to be suitable for continuous fiber reinforced composite materials 3D printing
Nozzle described in printing head be connected through a screw thread mode and be connected to fiber trunnion lower end, the block side of being connected through a screw thread
Formula is connected to the upper end of internal chamber wall, and fiber trunnion upper end is connected through a screw thread mode and is connected in block, under fiber trunnion
End is connected through a screw thread mode and is connected to internal chamber wall lower end；Resin nozzle is connected through a screw thread mode and is connected under resin trunnion
End, resin trunnion are connected through a screw thread mode and are connected in block.
As advanced optimizing for the technical program, the present invention is a kind of to be suitable for continuous fiber reinforced composite materials 3D printing
Nozzle described in screw thread be rectangular thread or trapezoidal thread.
As advanced optimizing for the technical program, the present invention is a kind of to be suitable for continuous fiber reinforced composite materials 3D printing
Nozzle described in heating rod have even number, be symmetrically distributed in block.
As advanced optimizing for the technical program, the present invention is a kind of to be suitable for continuous fiber reinforced composite materials 3D printing
Nozzle described in resin nozzle, resin trunnion and Teflon have it is multiple.
As advanced optimizing for the technical program, the present invention is a kind of to be suitable for continuous fiber reinforced composite materials 3D printing
Nozzle described in the upper end of resin nozzle head on the lower end of resin trunnion.
As advanced optimizing for the technical program, the present invention is a kind of to be suitable for continuous fiber reinforced composite materials 3D printing
Nozzle described in printing head, internal chamber wall, fiber trunnion and the axis of block it is conllinear.
A kind of nozzle suitable for continuous fiber reinforced composite materials 3D printing of the invention has the beneficial effect that：
A kind of nozzle suitable for continuous fiber reinforced composite materials 3D printing of the invention, can enhance molten resin and fibre
The bond effect of dimension, to improve print quality；In addition, nozzle structure is by being detachably connected, and when plug wire situation occurs, energy
It is quickly cleaned after enough dismountings.
Description of the drawings
The present invention will be further described in detail with specific implementation method below in conjunction with the accompanying drawings.
Fig. 1 is a kind of structural schematic diagram of nozzle suitable for continuous fiber reinforced composite materials 3D printing of the invention.
Fig. 2 is the partial enlarged view of Fig. 1.
In figure：Printing head 1；Internal chamber wall 2；Fiber trunnion 3；Conical section 3-1；Vertical section 3-2；Through-hole 3-3；Temperature sensing
Device 4；Block 5；Heating rod 6；Fibre bundle 7；Resin 8；Resin nozzle 9；Resin trunnion 10；Teflon 11.
Specific implementation mode
Specific implementation mode one：
Illustrate present embodiment with reference to Fig. 1,2, the invention belongs to 3D printing fields, more specifically, being related to one kind
It is passed suitable for the nozzle of continuous fiber reinforced composite materials 3D printing, including printing head 1, internal chamber wall 2, fiber trunnion 3, temperature
Sensor 4, block 5, heating rod 6, resin nozzle 9, resin trunnion 10 and Teflon 11, can improve resin and bonding for fiber is imitated
Fruit prevents plug, and is convenient to clean nozzle.
The printing head 1 is detachably connected on 3 lower end of fiber trunnion, and the block 5 is detachably connected on internal chamber wall 2
Upper end, nested heating rod 6 and temperature sensor 4,3 upper end of fiber trunnion are detachably connected on block 5 in the block 5
On, 3 lower end of fiber trunnion is detachably connected on 2 lower end of internal chamber wall；Resin nozzle 9 is detachably connected on 10 lower end of resin trunnion,
Resin trunnion 10 is detachably connected in block 5, and the inside of resin trunnion 10 is cased with cricoid Teflon 11；It is above-mentioned detachably to connect
The mode of connecing can be threadedly coupled either interference fit or other detachable connections, main using detachable connection
Be used for when plug wire phenomenon occurs can fast quick-detach, not in cleaning.It is formed in addition, nozzle is divided into multiple part combinations,
It is also beneficial to the processing and manufacturing of part, advantageously reduces cost.Nested heating rod 6 is for generating heat in block 5, to
Block 5 is heated, block 5 transfers heat to resin nozzle 9 and internal chamber wall 2.Resin nozzle 9 after heating makes resin 8 melt,
And it is squeezed under the action of wire squeezes mechanism in the resin vessel that internal chamber wall 2 is formed with block 5.Internal chamber wall 2 after heating can be kept
Resin in resin vessel is kept molten by.
The fiber trunnion 3 is equipped with multiple perforative inclined holes tilted down, the axis of the axis and fiber trunnion 3 of inclined hole
The angle a of line is less than 90 degree.As the resin squeezed into resin vessel is on the increase, the tree under squeezing action in resin vessel
Fat can be got into from the inclined hole on fiber trunnion 3 in fiber trunnion 3, and be flowed downward under the guide functions of inclined hole, to wrap up
Around fibre bundle 7 in fiber trunnion 3.The structure design increases the length of the time and flowing of resin package fibre bundle 7
Degree, is conducive to resin and fibre bundle 7 is well-bonded, final to improve printing matter to improve the bond effect of resin and fibre bundle 7
Amount.
In addition, molten resin 8 and fibre bundle 7 can fully infiltrate in fiber trunnion 3, molten resin 8 can be wrapped in fiber
The surrounding of beam 7 is simultaneously squeezed out from printing head 1, and fibre bundle 7 is effectively prevent to be bent and cause plug wire.Even if plug wire occurs once in a while
It can be quickly cleaned by dismantling printing head 1.
The internal chamber wall 2, block 5, resin nozzle 9, resin trunnion 10 are metal material, can be stainless steel, copper,
The metals such as iron, aluminium, are conducive to heat transfer.
Specific implementation mode two：
Illustrate that present embodiment, present embodiment are described further embodiment one with reference to Fig. 1,2, the fibre
It includes conical section 3-1, vertical section 3-2 and through-hole 3-3 to tie up trunnion 3, and conical section 3-1 is connected with vertical section 3-2, and conical section 3-
1 is located at the upper end of fiber trunnion 3, and through-hole 3-3 is equipped at the tip of conical section 3-1.Through-hole 3-3 is equipped with for wearing fibre bundle 7
Seal washer, for preventing resin from overflowing.In addition, conical section 3-1 and vertical section 3-2 together forms concave cavity, to change
The Impact direction of molten resin 8 is become, guiding molten resin 8 squeezes out downwards, and reduction molten resin 8 squeezes out general from through-hole 3-3
Rate effectively reduces the spilling of molten resin 8.
Specific implementation mode three：
Illustrate that present embodiment, present embodiment are described further embodiment one with reference to Fig. 1,2, the fibre
Inclined hole on dimension trunnion 3 is located on vertical section 3-2 and is respectively positioned in internal chamber wall 2.Inclined hole on fiber trunnion 3 is respectively positioned on inner cavity
In wall 2, be in order to prevent resin by inclined hole and at the beginning of internal chamber wall 2 and fiber trunnion 3 or the fiber trunnion 3 with the connection of block 5
It overflows.For example, if in the hole that inclined hole is placed exactly in block 5 or internal chamber wall 2 is connect with fiber trunnion 3, molten resin 8 is just
It can squeeze out from inclined hole under squeezing action and be overflowed out of block 5 or internal chamber wall 2 are connect with fiber trunnion 3 hole.
Specific implementation mode four：
Illustrate present embodiment with reference to Fig. 1,2, present embodiment is described further embodiment one, described to beat
Print nozzle 1 is connected through a screw thread mode and is connected to 3 lower end of fiber trunnion, and the block 5 is connected through a screw thread in mode is connected to
The upper end of cavity wall 2,3 upper end of fiber trunnion are connected through a screw thread mode and are connected in block 5, and 3 lower end of fiber trunnion passes through
Thread connecting mode is connected to 2 lower end of internal chamber wall；Resin nozzle 9 is connected through a screw thread mode and is connected to 10 lower end of resin trunnion,
Resin trunnion 10 is connected through a screw thread mode and is connected in block 5.It is threadedly coupled and is convenient for fast quick-detach, when generation plug wire phenomenon
When, it can fast quick-detach cleaning.In addition, being threadedly coupled can also effectively prevent the resin of melting to overflow.
Specific implementation mode five：
Illustrate that present embodiment, present embodiment are described further embodiment four with reference to Fig. 1,2, the spiral shell
Line is rectangular thread or trapezoidal thread.It is learnt by experimental study, when screw thread is rectangular thread or trapezoidal thread, resin overflows
The possibility smaller gone out.
Specific implementation mode six：
Illustrate that present embodiment, present embodiment are described further embodiment one with reference to Fig. 1,2, it is described to add
Hot pin 6 has even number, is symmetrically distributed in block 5, so that resin temperature is more uniform, is conducive to improve resin and fiber
Adhesive property.
Specific implementation mode seven：
Illustrate that present embodiment, present embodiment are described further embodiment one with reference to Fig. 1,2, the tree
Fat nozzle 9, resin trunnion 10 and Teflon 11 have it is multiple, to realize multiply resin simultaneously or it is different when into silk.Resin
Material can be the same or different.
Specific implementation mode eight：
Illustrate that present embodiment, present embodiment are described further embodiment one with reference to Fig. 1,2, the tree
The upper end of fat nozzle 9 heads on the lower end of resin trunnion 10, to prevent the resin of melting from being overflowed from gap.
Specific implementation mode nine：
Illustrate present embodiment with reference to Fig. 1,2, present embodiment is described further embodiment one, described to beat
It is conllinear to print nozzle 1, internal chamber wall 2, fiber trunnion 3 and the axis of block 5, for ensureing that fibre bundle 7 is always positioned at center position
It sets, to improve the bond effect of resin and fibre bundle 7, to improve print quality.
Operation principle：Before the printing, it is initially charged with fibre bundle 7 and resin 8, heats heating rod 6, heat can pass through block 5
And each metal parts passes to resin nozzle 9, resin nozzle 9 melts resin 8, meeting under the action of wire squeezes mechanism of resin 8
It constantly gets into the resin vessel that internal chamber wall 2 is formed with block 5, the heat of Resin Absorbent internal chamber wall 2 and block 5 in resin vessel
Amount is kept molten by, and is got into fiber trunnion 3 from the inclined hole from fiber trunnion 3, and under the guide functions of inclined hole to
Lower flowing to be wrapped in around the fibre bundle 7 in fiber trunnion 3, and drives fibre bundle 7 to squeeze out, and increases to form fiber
Strong composite material is bound together table surface, and during nozzle moves, fibre bundle 7 will be constantly drawn out, and
The resin 8 that four weekly assemblies of fibre bundle 7 are enclosed with melting when necessary may be used to realize continuous fiber reinforced composite materials 3D printing
To cut fibre bundle 7.The print head can be adapted for current existing 3D printer structure, and controls program and be equally applicable to
Existing program, it is only necessary to regard fibre-reinforced composite material as common resin material.
Certainly, above description is not limitation of the present invention, and the present invention is also not limited to the example above, the art
The variations, modifications, additions or substitutions that those of ordinary skill is made in the essential scope of the present invention also belong to the guarantor of the present invention
Protect range.
Claims (8)
1. a kind of nozzle suitable for continuous fiber reinforced composite materials 3D printing, including printing head (1), internal chamber wall (2), fibre
Tie up trunnion (3), temperature sensor (4), block (5), heating rod (6), resin nozzle (9), resin trunnion (10) and Teflon
(11), it is characterised in that：The printing head (1) is detachably connected on fiber trunnion (3) lower end, and the block (5) is detachable
It is connected to the upper end of internal chamber wall (2), nested heating rod (6) and temperature sensor (4), the fiber larynx on the block (5)
Pipe (3) upper end is detachably connected in block (5), and fiber trunnion (3) lower end is detachably connected on internal chamber wall (2) lower end；Resin
Nozzle (9) is detachably connected on resin trunnion (10) lower end, and resin trunnion (10) is detachably connected in block (5), resin larynx
The inside of pipe (10) is cased with cricoid Teflon (11)；
The fiber trunnion (3) is equipped with multiple perforative inclined holes tilted down, the axis of the axis and fiber trunnion (3) of inclined hole
The angle of line is less than 90 degree；
The internal chamber wall (2), block (5), resin nozzle (9), resin trunnion (10) are metal material；
The fiber trunnion (3) includes conical section (3-1), vertical section (3-2) and through-hole (3-3), conical section (3-1) and vertical section
(3-2) is connected, and conical section (3-1) is located at the upper end of fiber trunnion (3), and through-hole (3- is equipped at the tip of conical section (3-1)
3)。
2. a kind of nozzle suitable for continuous fiber reinforced composite materials 3D printing according to claim 1, feature exist
In：Inclined hole on the fiber trunnion (3) is located in vertical section (3-2) and is respectively positioned in internal chamber wall (2).
3. a kind of nozzle suitable for continuous fiber reinforced composite materials 3D printing according to claim 1, feature exist
In：Printing head (1) mode of being connected through a screw thread is connected to fiber trunnion (3) lower end, and the block (5) is connected by screw thread
The mode of connecing is connected to the upper end of internal chamber wall (2), and fiber trunnion (3) upper end is connected through a screw thread mode and is connected to block (5)
On, fiber trunnion (3) lower end is connected through a screw thread mode and is connected to internal chamber wall (2) lower end；Resin nozzle (9) is connected through a screw thread
Mode is connected to resin trunnion (10) lower end, and resin trunnion (10) mode of being connected through a screw thread is connected in block (5).
4. a kind of nozzle suitable for continuous fiber reinforced composite materials 3D printing according to claim 3, feature exist
In：The screw thread is rectangular thread or trapezoidal thread.
5. a kind of nozzle suitable for continuous fiber reinforced composite materials 3D printing according to claim 1, feature exist
In：The heating rod (6) has even number, is symmetrically distributed in block (5).
6. a kind of nozzle suitable for continuous fiber reinforced composite materials 3D printing according to claim 1, feature exist
In：The resin nozzle (9), resin trunnion (10) and Teflon (11) have multiple.
7. a kind of nozzle suitable for continuous fiber reinforced composite materials 3D printing according to claim 1, feature exist
In：The upper end of the resin nozzle (9) heads on the lower end of resin trunnion (10).
8. a kind of nozzle suitable for continuous fiber reinforced composite materials 3D printing according to claim 1, feature exist
In：The printing head (1), internal chamber wall (2), the axis of fiber trunnion (3) and block (5) are conllinear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611026706.0A CN106393678B (en) | 2016-11-15 | 2016-11-15 | A kind of nozzle suitable for continuous fiber reinforced composite materials 3D printing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611026706.0A CN106393678B (en) | 2016-11-15 | 2016-11-15 | A kind of nozzle suitable for continuous fiber reinforced composite materials 3D printing |
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| Publication Number | Publication Date |
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| CN106393678A CN106393678A (en) | 2017-02-15 |
| CN106393678B true CN106393678B (en) | 2018-08-17 |
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| CN201611026706.0A Active CN106393678B (en) | 2016-11-15 | 2016-11-15 | A kind of nozzle suitable for continuous fiber reinforced composite materials 3D printing |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109016490B (en) * | 2017-06-08 | 2021-07-23 | 北京科技大学 | Continuous fiber reinforced composite 3D printer nozzle device with integrated structure |
| CN111113849A (en) * | 2019-12-22 | 2020-05-08 | 同济大学 | Extrusion forming equipment for manufacturing cored fused deposition forming wire |
| CN111531870A (en) * | 2020-04-23 | 2020-08-14 | 北京机科国创轻量化科学研究院有限公司 | Additive manufacturing method of high-performance fiber-reinforced thermoplastic resin-based composite material |
| CN115214129A (en) * | 2022-07-01 | 2022-10-21 | 四川大学 | Continuous fiber reinforced composite 3D printing head and printer |
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| CN203994730U (en) * | 2014-08-20 | 2014-12-10 | 黑龙江科大科技开发有限公司 | Non-maintaining 3D printing head assembly |
| CN104441658A (en) * | 2014-11-27 | 2015-03-25 | 西安交通大学 | 3D printing head for continuous-fiber-reinforced intelligent composite material and use method of 3D printing head |
| CN205219760U (en) * | 2015-12-17 | 2016-05-11 | 北京清软海芯科技有限公司 | Print shower nozzle and have 3D printer of this shower nozzle |
| CN205467420U (en) * | 2016-01-16 | 2016-08-17 | 陶小弟 | Device is made around carat pipeline to continuous fibers reinforcing preimpregnation tape winding |
| WO2016142472A1 (en) * | 2015-03-11 | 2016-09-15 | Dsm Ip Assets B.V. | Apparatuses and methods for forming three-dimensional objects |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2894037T3 (en) * | 2014-12-12 | 2022-02-11 | Fund Eurecat | Procedure for manufacturing a piece of composite material |
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- 2016-11-15 CN CN201611026706.0A patent/CN106393678B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203994730U (en) * | 2014-08-20 | 2014-12-10 | 黑龙江科大科技开发有限公司 | Non-maintaining 3D printing head assembly |
| CN104441658A (en) * | 2014-11-27 | 2015-03-25 | 西安交通大学 | 3D printing head for continuous-fiber-reinforced intelligent composite material and use method of 3D printing head |
| WO2016142472A1 (en) * | 2015-03-11 | 2016-09-15 | Dsm Ip Assets B.V. | Apparatuses and methods for forming three-dimensional objects |
| CN205219760U (en) * | 2015-12-17 | 2016-05-11 | 北京清软海芯科技有限公司 | Print shower nozzle and have 3D printer of this shower nozzle |
| CN205467420U (en) * | 2016-01-16 | 2016-08-17 | 陶小弟 | Device is made around carat pipeline to continuous fibers reinforcing preimpregnation tape winding |
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