CN106393678A - Shower nozzle suitable for 3D printing of continuous fiber reinforced composite - Google Patents
Shower nozzle suitable for 3D printing of continuous fiber reinforced composite Download PDFInfo
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- CN106393678A CN106393678A CN201611026706.0A CN201611026706A CN106393678A CN 106393678 A CN106393678 A CN 106393678A CN 201611026706 A CN201611026706 A CN 201611026706A CN 106393678 A CN106393678 A CN 106393678A
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- Prior art keywords
- resin
- trunnion
- shower nozzle
- fiber
- block
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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 the field of 3D printing, and relates to a shower nozzle suitable for 3D printing of a continuous fiber reinforced composite. The shower nozzle comprises a printing shower nozzle, an inner cavity wall, a fiber throat pipe, a temperature sensor, a cap, heating rods, resin shower nozzles, resin throat pipes and Teflon. The bonding effect of resin and fiber can be improved, plugging is prevented, and the shower nozzle is convenient for being cleaned. The printing shower nozzle is detachably connected to the lower end of the fiber throat pipe. The cap is detachably connected to the upper end of the inner cavity wall. The heating rods and the temperature sensor are embedded in the cap. The upper end of the fiber throat pipe is detachably connected onto the cap. The lower end of the fiber throat pipe is detachably connected to the lower end of the inner cavity wall. The resin shower nozzles are detachably connected to the lower end of the resin throat pipe. The resin throat pipes are detachably connected to the cap. The annular Teflon is nested in the resin throat pipes. A plurality of through inclined holes inclining downwards are formed in the fiber throat pipe. The included angles between the axes of the inclined holes and the axis of the fiber throat pipe are smaller than 90 degrees. The inner cavity wall, the cap, the resin shower nozzles and the resin throat pipes are made of metal.
Description
Technical field
The invention belongs to 3D printing field, in particular, it is related to one kind and is applied to continuous fiber reinforced composite materials 3D
The shower nozzle printing.
Background technology
3D printing technique is fast-developing emerging technology in manufacture field, is referred to as " thering is 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, and in aeronautical and space technology, vehicle appliance manufacture produces, biology is cured
The fields such as medicine, food processing have obtained certain application.Compared with traditional manufacturing technology, 3D printing three-dimensional fast shaping manufacturing technology
Eliminating the processing and manufacturing of product mold, thus greatly shortening the lead time of product in time, improve productivity ratio
With reduction production cost.Economic benefit and prospect aspect have very big development potentiality, according to international quick manufacturing authority
Report《Wohlers Report 2011》The investigation result issued shows, 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 still will remain and increase speed quickly
Degree, to the year two thousand twenty, comprises device fabrication and the industry gross output value of service is up to 5,200,000,000 dollars.New the world of 2012
In technology trends investigation, 3D printing manufacturing technology ranks first.At present, existing increases material manufacturing technology also face all multi-party
The bottleneck in face and exploration, accordingly, it would be desirable to further investigate further, expand its application.
The fibre reinforced composites product being printed using 3D printing technique, not only possesses high intensity, high rigidity, quality
Light the features such as, and the distribution arrangement of fiber can be controlled, thus controlling the performance of product.The 3D of fibre reinforced composites beats
Print technology is either all significant in civilian or military affairs.For example, make automobile using carbon fibre composite
Parts, lifting automotive performance simultaneously reduces oil consumption；Carbon fibre composite product covers each position of space flight optical remote sensor,
As camera lens barrel, camera support, light shield, truss etc..The fast development of dependence printed material and increases material manufacturing technology are increasingly
Maturation, the 3D printing technique based on fibre reinforced composites will be applied to all trades and professions, promotes the quick of manufacturing industry to send out
Exhibition.
But current continuous fiber reinforced composite materials 3D printing technique research is less, is still in development, exists
Problems.Such as, resin cannot well into fiber silk ribbon internal it is impossible to by each filament pass through resin-bonded one
Rising, thus forming cavity printing inside workpiece, seriously reducing the mechanical property of workpiece.Additionally, continuous lod is combined
The easy plug of material 3D printing, thus lead to fiber cannot wire vent or resin overflow outward inside shower nozzle.
Content of the invention
The invention mainly solves the technical problem of provide a kind of being applied to continuous fiber reinforced composite materials 3D printings
Shower nozzle, can improve the bond effect of resin and fiber, prevent plug, and be convenient to clean shower nozzle.
For solving above-mentioned technical problem, the invention belongs to 3D printing field, in particular, it is related to one kind and is applied to continuously
The shower nozzle of fibre reinforced composites 3D printing, including printing head, internal chamber wall, fiber trunnion, temperature sensor, block, adds
Hot pin, resin shower nozzle, resin trunnion and Teflon, can improve the bond effect of resin and fiber, prevent plug, and be easy to
Cleaning shower nozzle.
Described printing head is detachably connected on fiber trunnion lower end, and described block is detachably connected on the upper of internal chamber wall
End, nested heating rod and temperature sensor in described block, described fiber trunnion upper end is detachably connected in block, fiber
Trunnion lower end is detachably connected on internal chamber wall lower end；Resin shower nozzle is detachably connected on resin trunnion lower end, and resin trunnion is removable
Unload and be connected in block, the inside of resin trunnion is cased with the Teflon of ring-type.
Described fiber trunnion is provided with multiple downward-sloping inclined holes running through, the axis of the axis of inclined hole and fiber trunnion
Angle be less than 90 degree.
Described internal chamber wall, block, resin shower nozzle, resin trunnion are metal material.
As the optimization further of the technical program, one kind of the present invention is applied to continuous fiber reinforced composite materials 3D printing
The fiber trunnion described in shower nozzle 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, the most advanced and sophisticated place of conical section is provided with through hole.
As the optimization further of the technical program, one kind of the present invention is applied to continuous fiber reinforced composite materials 3D printing
The fiber trunnion described in shower nozzle on inclined hole be located in vertical section and be respectively positioned in internal chamber wall.
As the optimization further of the technical program, one kind of the present invention is applied to continuous fiber reinforced composite materials 3D printing
The printing head described in shower nozzle be threaded connection mode and be connected to fiber trunnion lower end, the described block side of being threaded connection
Formula is connected to the upper end of internal chamber wall, and described fiber trunnion upper end is threaded connection mode and is connected in block, under fiber trunnion
End is threaded connection mode and is connected to internal chamber wall lower end；Resin shower nozzle is threaded connection mode and is connected under resin trunnion
End, resin trunnion is threaded connection mode and is connected in block.
As the optimization further of the technical program, one kind of the present invention is applied to continuous fiber reinforced composite materials 3D printing
The screw thread described in shower nozzle be rectangular thread or trapezoidal thread.
As the optimization further of the technical program, one kind of the present invention is applied to continuous fiber reinforced composite materials 3D printing
The heating rod described in shower nozzle have even number, be symmetrically distributed in block.
As the optimization further of the technical program, one kind of the present invention is applied to continuous fiber reinforced composite materials 3D printing
The resin shower nozzle described in shower nozzle, resin trunnion and Teflon all have multiple.
As the optimization further of the technical program, one kind of the present invention is applied to continuous fiber reinforced composite materials 3D printing
The upper end of the resin shower nozzle described in shower nozzle head on the lower end of resin trunnion.
As the optimization further of the technical program, one kind of the present invention is applied to continuous fiber reinforced composite materials 3D printing
The printing head described in shower nozzle, internal chamber wall, fiber trunnion and block axis all conllinear.
The having the beneficial effect that of a kind of shower nozzle being applied to continuous fiber reinforced composite materials 3D printing of the present invention：
A kind of shower nozzle being applied to continuous fiber reinforced composite materials 3D printing of the present invention, can strengthen molten resin and fibre
The bond effect of dimension, thus improve print quality；Additionally, nozzle structure passes through to be detachably connected, when there is plug wire situation, energy
Quickly clear up after enough dismountings.
Brief description
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 representation of the shower nozzle being applied to continuous fiber reinforced composite materials 3D printing of the present invention.
Fig. 2 is the partial enlarged drawing 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；TEMP
Device 4；Block 5；Heating rod 6；Fibre bundle 7；Resin 8；Resin shower nozzle 9；Resin trunnion 10；Teflon 11.
Specific embodiment
Specific embodiment one：
With reference to Fig. 1,2 explanation present embodiments, the invention belongs to 3D printing field, in particular, it is related to one kind
It is applied to the shower nozzle of continuous fiber reinforced composite materials 3D printing, pass including printing head 1, internal chamber wall 2, fiber trunnion 3, temperature
Sensor 4, block 5, heating rod 6, resin shower nozzle 9, resin trunnion 10 and Teflon 11, can improve the bonding effect of resin and fiber
Really, prevent plug, and be convenient to clean shower nozzle.
Described printing head 1 is detachably connected on fiber trunnion 3 lower end, and described block 5 is detachably connected on internal chamber wall 2
Upper end, nested heating rod 6 and temperature sensor 4 in described block 5, described fiber trunnion 3 upper end is detachably connected on block 5
On, fiber trunnion 3 lower end is detachably connected on internal chamber wall 2 lower end；Resin shower nozzle 9 is detachably connected on resin trunnion 10 lower end,
Resin trunnion 10 is detachably connected in block 5, and the inside of resin trunnion 10 is cased with the Teflon 11 of ring-type；Above-mentioned detachably connect
The mode of connecing can be threaded or interference fit or other be detachably connected mode, using being detachably connected mode, main
Be used for when there is plug wire phenomenon can quick-detach soon, not in cleaning.Additionally, shower nozzle is divided into multiple part combination forming,
It is also beneficial to the processing and manufacturing of part, advantageously reduce cost.In block 5, nested heating rod 6 is used for producing heat, thus
Heating block 5, block 5 transfers heat to resin shower nozzle 9 and internal chamber wall 2.Resin shower nozzle 9 after heating makes resin 8 melt,
And clamp-on in the presence of wire squeeze mechanism in the resin cavity volume that internal chamber wall 2 is formed with block 5.Internal chamber wall 2 after heating can keep
Resin in resin cavity volume is kept molten by.
Described fiber trunnion 3 is provided with multiple downward-sloping inclined holes running through, the axle of the axis of inclined hole and fiber trunnion 3
The angle a of line is less than 90 degree.It is on the increase with clamp-oning the resin in resin cavity volume, the tree in resin cavity volume under squeezing action
Fat can be got in fiber trunnion 3 from the inclined hole fiber trunnion 3, and flows downward under the guide functions of inclined hole, thus wrapping up
Around the fibre bundle 7 in fiber trunnion 3.This structure design, increased resin and wraps up the time of fibre bundle 7 and the length of flowing
Degree, is conducive to resin well-bonded with fibre bundle 7, thus improving the bond effect of resin and fibre bundle 7, final raising prints matter
Amount.
Additionally, molten resin 8 and fibre bundle 7 fully can infiltrate in fiber trunnion 3, molten resin 8 can be wrapped in fiber
The surrounding of bundle 7 is simultaneously extruded from printing head 1, effectively prevents fibre bundle 7 from bending and causing plug wire.Even if there is plug wire once in a while,
Quickly can be cleared up by dismantling printing head 1.
Described internal chamber wall 2, block 5, resin shower 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 embodiment two：
With reference to Fig. 1,2 explanation present embodiments, present embodiment is described further to embodiment one, described fibre
Dimension trunnion 3 includes conical section 3-1, vertical section 3-2 and through hole 3-3, and conical section 3-1 is connected with vertical section 3-2, and conical section 3-
1 upper end being located at fiber trunnion 3, the most advanced and sophisticated place of conical section 3-1 is provided with through hole 3-3.Through hole 3-3 is used for wearing fibre bundle 7, and is provided with
Seal washer, is used for preventing resin from overflowing.Additionally, conical section 3-1 and vertical section 3-2 together form concave cavity, thus changing
Become the Impact direction of molten resin 8, guiding molten resin 8 is extruded downwards, reduce molten resin 8 from through hole 3-3 extrude general
Rate, effectively reduces molten resin 8 and overflows.
Specific embodiment three：
With reference to Fig. 1,2 explanation present embodiments, present embodiment is described further to embodiment one, described fibre
Inclined hole on dimension trunnion 3 is located in vertical section 3-2 and is respectively positioned in internal chamber wall 2.Inclined hole on fiber trunnion 3 is respectively positioned on inner chamber
In wall 2, be in order to prevent resin through inclined hole and from internal chamber wall 2 and fiber trunnion 3 or fiber trunnion 3 with the beginning of the connection of block 5
Overflow.For example, if inclined hole is placed exactly in the in the hole that block 5 or internal chamber wall 2 are connected with fiber trunnion 3, molten resin 8 is just
The in the hole that can extrude from inclined hole under squeezing action and be connected with fiber trunnion 3 from block 5 or internal chamber wall 2 is overflowed.
Specific embodiment four：
With reference to Fig. 1,2 explanation present embodiments, present embodiment is described further to embodiment one, described beats
Print shower nozzle 1 is threaded connection mode and is connected to fiber trunnion 3 lower end, and described block 5 is threaded connection in mode is connected to
The upper end of cavity wall 2, described fiber trunnion 3 upper end is threaded connection mode and is connected in block 5, and fiber trunnion 3 lower end is passed through
Thread connecting mode is connected to internal chamber wall 2 lower end；Resin shower nozzle 9 is threaded connection mode and is connected to resin trunnion 10 lower end,
Resin trunnion 10 is threaded connection mode and is connected in block 5.Threaded be easy to fast quick-detach, when occur plug wire phenomenon
When, can quick-detach cleaning soon.Additionally, threaded can also effectively prevent the resin melting from overflowing.
Specific embodiment five：
With reference to Fig. 1,2 explanation present embodiments, present embodiment is described further to embodiment four, described spiral shell
Line is rectangular thread or trapezoidal thread.Learn through experimental study, when screw thread is for rectangular thread or trapezoidal thread, resin overflows
The possibility going out is less.
Specific embodiment six：
With reference to Fig. 1,2 explanation present embodiments, present embodiment is described further to embodiment one, described plus
Hot pin 6 has even number, is symmetrically distributed in block 5, so that resin temperature is more uniform, is conducive to improving resin and fiber
Adhesive property.
Specific embodiment seven：
With reference to Fig. 1,2 explanation present embodiments, present embodiment is described further to embodiment one, described tree
Fat shower nozzle 9, resin trunnion 10 and Teflon 11 all have multiple, thus realize multiply resin to enter silk simultaneously or asynchronously.Resin
Material can be the same or different.
Specific embodiment eight：
With reference to Fig. 1,2 explanation present embodiments, present embodiment is described further to embodiment one, described tree
The upper end of fat shower nozzle 9 heads on the lower end of resin trunnion 10, thus preventing the resin melting from overflowing from gap.
Specific embodiment nine：
With reference to Fig. 1,2 explanation present embodiments, present embodiment is described further to embodiment one, described beats
Print shower nozzle 1, internal chamber wall 2, fiber trunnion 3 and block 5 axis all conllinear, for ensureing that fibre bundle 7 is always positioned at center position
Put, thus improving the bond effect of resin and fibre bundle 7, thus improving 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 shower nozzle 9, resin shower nozzle 9 melts resin 8, resin 8 meeting in the presence of wire squeeze mechanism
Constantly get in the resin cavity volume that internal chamber wall 2 is formed with block 5, the Resin Absorbent internal chamber wall 2 in resin cavity volume and the heat of block 5
Amount is kept molten by, and from getting in fiber trunnion 3 from the inclined hole fiber trunnion 3, and under the guide functions of inclined hole to
Lower flowing, thus the fibre bundle 7 being wrapped in fiber trunnion 3 is around, and drives fibre bundle 7 to extrude, thus form fiber increasing
Strong composite is bound together table surface, and during shower nozzle is mobile, fibre bundle 7 will constantly be drawn out, and
Four weekly assemblies of fibre bundle 7 are enclosed with the resin 8 of melting, thus realizing continuous fiber reinforced composite materials 3D printing, if necessary may be used
To cut off fibre bundle 7.This printhead goes for existing 3D printer structure at present, and control program is equally applicable to
Existing program just may be used it is only necessary to regard fibre-reinforced composite as common resin material.
Certainly, described above not limitation of the present invention, the present invention is also not limited to the example above, the art
Change, remodeling, interpolation or replacement that those of ordinary skill is made in the essential scope of the present invention, fall within the guarantor of the present invention
Shield scope.
Claims (9)
1. a kind of shower nozzle being applied to continuous fiber reinforced composite materials 3D printing, including printing head (1), internal chamber wall (2), fibre
Dimension trunnion (3), temperature sensor (4), block (5), heating rod (6), resin shower nozzle (9), resin trunnion (10) and Teflon
(11) it is characterised in that：Described printing head (1) is detachably connected on fiber trunnion (3) lower end, and described block (5) is detachable
Be connected to the upper end of internal chamber wall (2), described block (5) upper nested heating rod (6) and temperature sensor (4), described fiber larynx
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
Shower 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 the Teflon (11) of ring-type；
Described fiber trunnion (3) is provided with multiple downward-sloping inclined holes running through, the axle of the axis of inclined hole and fiber trunnion (3)
The angle of line is less than 90 degree；
Described internal chamber wall (2), block (5), resin shower nozzle (9), resin trunnion (10) are metal material.
2. a kind of shower nozzle being applied to continuous fiber reinforced composite materials 3D printing according to claim 1, its feature exists
In：Described 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) it is connected, and conical section (3-1) is located at the upper end of fiber trunnion (3), the most advanced and sophisticated place of conical section (3-1) is provided with through hole (3-
3).
3. a kind of shower nozzle being applied to continuous fiber reinforced composite materials 3D printing according to claim 1, its feature exists
In：Inclined hole on described fiber trunnion (3) is located at vertical section (3-2) above and is respectively positioned in internal chamber wall (2).
4. a kind of shower nozzle being applied to continuous fiber reinforced composite materials 3D printing according to claim 1, its feature exists
In：Described printing head (1) mode of being threaded connection is connected to fiber trunnion (3) lower end, and described block (5) is by screw thread even
The mode of connecing is connected to the upper end of internal chamber wall (2), and described fiber trunnion (3) upper end is threaded connection mode and is connected to block (5)
On, fiber trunnion (3) lower end is threaded connection mode and is connected to internal chamber wall (2) lower end；Resin shower nozzle (9) is threaded connection
Mode is connected to resin trunnion (10) lower end, and resin trunnion (10) mode of being threaded connection is connected in block (5).
5. a kind of shower nozzle being applied to continuous fiber reinforced composite materials 3D printing according to claim 4, its feature exists
In：Described screw thread is rectangular thread or trapezoidal thread.
6. a kind of shower nozzle being applied to continuous fiber reinforced composite materials 3D printing according to claim 1, its feature exists
In：Described heating rod (6) has even number, is symmetrically distributed in block (5).
7. a kind of shower nozzle being applied to continuous fiber reinforced composite materials 3D printing according to claim 1, its feature exists
In：Described resin shower nozzle (9), resin trunnion (10) and Teflon (11) all have multiple.
8. a kind of shower nozzle being applied to continuous fiber reinforced composite materials 3D printing according to claim 1, its feature exists
In：The upper end of described resin shower nozzle (9) heads on the lower end of resin trunnion (10).
9. a kind of shower nozzle being applied to continuous fiber reinforced composite materials 3D printing according to claim 1, its feature exists
In：Described printing head (1), internal chamber wall (2), fiber trunnion (3) and block (5) axis all 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 true CN106393678A (en) | 2017-02-15 |
| CN106393678B CN106393678B (en) | 2018-08-17 |
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ID=58068760
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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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Cited By (4)
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| CN109016490A (en) * | 2017-06-08 | 2018-12-18 | 刘江 | A kind of continuous fiber reinforced composite materials 3D printer ejecting device of integrated morphology |
| 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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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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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| Publication number | Publication date |
|---|---|
| CN106393678B (en) | 2018-08-17 |
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