CN107127972B - Continuous fiber reinforced composite materials increasing material manufacturing spray head and printer - Google Patents
Continuous fiber reinforced composite materials increasing material manufacturing spray head and printer Download PDFInfo
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- CN107127972B CN107127972B CN201710541302.3A CN201710541302A CN107127972B CN 107127972 B CN107127972 B CN 107127972B CN 201710541302 A CN201710541302 A CN 201710541302A CN 107127972 B CN107127972 B CN 107127972B
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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
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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
- B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
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Abstract
The invention belongs to material increasing fields, more specifically, being related to a kind of continuous fiber reinforced composite materials increasing material manufacturing spray head and printer, by outer spray head and interior sprinkler composition, nozzle structure is simple, and size is smaller, and formed precision can be improved；In addition, the vertical distance between the outlet and the outlet of outer spray head of interior spray head is adjustable, can control fibrous composite to neutrality, improve Forming Quality.The interior spray head is threadedly coupled in the inside of outer spray head, the inside of the interior spray head is equipped with for wearing filametntary inner cavity II, the inside of the outer spray head is equipped with the inner cavity I for accommodating resin material, the inner cavity I and inner cavity II are coaxial, the connecting hole of connection inner cavity I is additionally provided on the outer spray head, the connecting hole is located at the side of outer spray head.Continuous fiber reinforced composite materials increasing material manufacturing may be implemented in the printer.
Description
Technical field
The invention belongs to material increasing fields, more specifically, being related to a kind of continuous fiber reinforced composite materials increasing material system
Make spray head and printer.
Background technique
Increases material manufacturing technology is an emerging technology fast-developing in manufacture field, referred to as " has third
The manufacturing technology of secondary industrial revolution important symbol meaning ", each Main Developed Countries are classified as the key technology of strategic development.Mesh
Before, increases material manufacturing technology relies on multiple ambit sophisticated technologies, in aeronautical and space technology, vehicle appliance manufacture production, biology
The fields such as medicine, food processing have obtained certain application.Compared with traditional manufacturing technology, the manufacture of increasing material manufacturing three-dimensional fast shaping
The processing and manufacturing of product mold is omitted in technology, to greatly shorten the lead time of product in time, improves life
Yield and reduction production cost.There is very big development potentiality in terms of economic benefit and prospect, according to international quick manufacturing
The investigation result of authority's report " Wohlers Report 2011 " publication shows that global 3D printing industry production value was arrived in 1988
Increased between 2010 with 26.2% average annual speed.Address prediction, 3D printing industry future will still remain to be increased quickly
Long speed arrives the year two thousand twenty, is up to 5,200,000,000 dollars comprising the industry gross output value including device fabrication and service.In state in 2012
In the investigation of border Developing trend of new technology, 3D printing manufacturing technology ranks first.Currently, existing increases material manufacturing technology also face it is all
Various bottlenecks and exploration expand its application field therefore, it is necessary to further further investigate.
The fibre reinforced composites product printed using increases material manufacturing technology, not only has high intensity, high rigidity, matter
It measures the features such as light, and can control the distribution arrangement of fiber, to control the performance of product.The increasing of fibre reinforced composites
Material manufacturing technology is either all of great significance in civilian or military affairs.For example, being made using carbon fibre composite
Auto parts and components promote automotive performance and reduce oil consumption；Carbon fibre composite product covers each of space flight optical remote sensor
Position, such as camera lens barrel, camera support, hood, truss.By the fast development and increases material manufacturing technology of printed material
Increasingly mature, the increases material manufacturing technology based on fibre reinforced composites will be applied to all trades and professions, push manufacturing industry
It is fast-developing.
But current continuous fiber reinforced composite materials increases material manufacturing technology research is less, is still in development phase, deposits
In problems.For example, resin is unable to fully enter inside fiber filament band, each fiber filament can not be passed through resin-bonded one
It rises, to form cavity in printing inside workpiece, seriously reduces the mechanical property of workpiece.In addition, continuous fiber reinforcement is compound
Material increasing material manufacturing is easy plug, so as to cause fiber can not wire vent or resin overflowed outward inside spray head.
Patent of invention one kind of Patent No. 201611004458.X is suitable for continuous fiber reinforced composite materials and increases material system
Patent of invention one kind of the spray head and Patent No. 201611026706.0 made is suitable for continuous fiber reinforced composite materials 3D and beats
The spray head of print discloses a kind of spray head suitable for continuous fiber reinforced composite materials increasing material manufacturing, but the structure of spray head ratio
It is more complex, cause jet size larger, the cavity volume for accommodating resin material is larger, furthermore between interior head outlet and the outside outlet
Distance can not adjust, be unable to control fibrous composite to neutrality.
Summary of the invention
The invention mainly solves the technical problem of providing a kind of continuous fiber reinforced composite materials increasing material manufacturing spray head and
Printer, nozzle structure is simple, and size is smaller, and formed precision can be improved；In addition, the outlet and the outlet of outer spray head of interior spray head
Between vertical distance it is adjustable, can control fibrous composite to neutrality, improve Forming Quality.
In order to solve the above technical problems, the invention belongs to material increasing fields, more specifically, being related to a kind of continuous fiber
Enhance composite material increasing material manufacturing spray head, by outer spray head and interior sprinkler composition, nozzle structure is simple, and size is smaller, can be improved
Formed precision；In addition, the vertical distance between the outlet and the outlet of outer spray head of interior spray head is adjustable, fiber composite material can control
Material to neutrality, improve Forming Quality.
The interior spray head is threadedly coupled in the inside of outer spray head, and the inside of the interior spray head is equipped with for wearing in filametntary
Chamber II, the inside of the outer spray head are equipped with the inner cavity I for accommodating resin material, and the inner cavity I and inner cavity II are coaxial, the outer spray head
On be additionally provided with the connecting hole of connection inner cavity I, the connecting hole is located at the side of outer spray head.
As advanced optimizing for the technical program, described in continuous fiber reinforced composite materials increasing material manufacturing spray head of the present invention
The upper end of outer spray head is cylindrical body, and lower end is cone, and two planes are symmetrically arranged on the cylindrical body, and the connecting hole is located at
In one of plane, another plane is equipped with location hole, and the location hole is tapped blind hole.
As advanced optimizing for the technical program, described in continuous fiber reinforced composite materials increasing material manufacturing spray head of the present invention
Interior spray head is cylindrical body, and the upper end diameter of interior spray head is greater than lower end diameter, and the upper end of interior spray head is equipped with tappet head, the tappet head
Lower end be provided with block, through interior spray head and coaxial with interior spray head, the inner cavity II is two cylindrical cavities for the inner cavity II
Body composition, the diameter of upper end circular cylindrical cavity are greater than the diameter of lower end circular cylindrical cavity, and the junction of two circular cylindrical cavities is
Arc-shaped transition.
As advanced optimizing for the technical program, described in continuous fiber reinforced composite materials increasing material manufacturing spray head of the present invention
Interior spray head is made of upper nozzle and lower nozzle, and the upper nozzle and lower nozzle are threadedly coupled, and the inside of the upper nozzle, which is equipped with, to be passed through
The cylindrical hole I of spray head is put on, the cylindrical hole I and upper nozzle are coaxial, and the inside of the lower nozzle, which is equipped with, runs through lower nozzle
Cylindrical hole II, the cylindrical hole II and lower nozzle are coaxial, and the cylindrical hole I and cylindrical hole II are coaxial, the circle
The diameter of column through-hole I is greater than the diameter of cylindrical hole II.
As advanced optimizing for the technical program, described in continuous fiber reinforced composite materials increasing material manufacturing spray head of the present invention
Cylindrical hole I is connect with cylindrical hole II by transition segmental arc, and the transition segmental arc is smooth arc-shaped surface.
As advanced optimizing for the technical program, described in continuous fiber reinforced composite materials increasing material manufacturing spray head of the present invention
The outlet of interior spray head is located within outer spray head, and the vertical distance between the outlet and the outlet of outer spray head of the interior spray head is 1-
6mm is provided with elastomeric pad between the outer spray head and interior spray head.
As advanced optimizing for the technical program, described in continuous fiber reinforced composite materials increasing material manufacturing spray head of the present invention
Continuous fiber reinforced composite materials increasing material manufacturing spray head further include heating device, the heating device for heat outer spray head and
Interior spray head makes resin melting in inner cavity I.
As advanced optimizing for the technical program, described in continuous fiber reinforced composite materials increasing material manufacturing spray head of the present invention
It is connected between heating device and outer spray head or interior spray head by heat-conducting block, the heat-conducting block is metal block, the outer spray head, interior spray
Head and heating device are each attached on heat-conducting block.
As advanced optimizing for the technical program, described in continuous fiber reinforced composite materials increasing material manufacturing spray head of the present invention
Continuous fiber reinforced composite materials increasing material manufacturing spray head further include the internal trunnion for being equipped with Teflon pipe, the trunnion screw thread connects
It connects in connecting hole.
As advanced optimizing for the technical program, continuous fiber reinforced composite materials increasing material manufacturing printer of the present invention,
Including above-mentioned continuous fiber reinforced composite materials increasing material manufacturing spray head.
Continuous fiber reinforced composite materials increasing material manufacturing spray head and printer of the present invention have the beneficial effect that
1. resin inlet is located at the side of outer spray head, rather than the upper end of outer spray head, the straight of outer spray head can be effectively reduced
Diameter reduces the quality of spray head to reduce the size of spray head, improves formed precision.
2. spray head is only by outer spray head and interior sprinkler composition, nozzle structure is simple, and easy to process and size is smaller.
3. vertical distance between the outlet and the outlet of outer spray head of spray head is adjustable, can control fibrous composite
To neutrality, improve Forming Quality.
4. outer spray head and interior spray head are connected through a screw thread, easy to disassemble, plug easy to clean.
5. spray head overall dimensions are smaller, to reduce the cavity volume for accommodating resin material, it can not only shorten heating
Time can also prevent resin from excessively overflowing.
Detailed description of the invention
The present invention will be further described in detail with specific implementation method with reference to the accompanying drawing.
Fig. 1 is the structural schematic diagram of continuous fiber reinforced composite materials increasing material manufacturing spray head of the present invention.
Fig. 2 is the main view of continuous fiber reinforced composite materials increasing material manufacturing spray head of the present invention.
Fig. 3 is the left view of continuous fiber reinforced composite materials increasing material manufacturing spray head of the present invention.
Fig. 4 is the bottom view of continuous fiber reinforced composite materials increasing material manufacturing spray head of the present invention.
Fig. 5 is the top view of continuous fiber reinforced composite materials increasing material manufacturing spray head of the present invention.
Fig. 6 is sectional view along A-A in Fig. 2.
Fig. 7 is another structural schematic diagram of inner casing 2.
Fig. 8 is the microscopic appearance figure of the fiber resin composite material of printing.
Vertical distance of the Fig. 9 between interior spray outlet and outer spray outlet is to fibrous composite fiber to neutral shadow
Ring rule.
In figure: outer spray head 1；Connecting hole 1-1；Location hole 1-2；I 1-3 of inner cavity；Interior spray head 2；Tappet head 2-1；Block 2-2；
II 2-3 of inner cavity；Upper nozzle 21；Cylindrical hole I 211；Block I 212；Transition segmental arc 213；Lower nozzle 22；Cylindrical hole II
221。
Specific embodiment
Specific embodiment 1:
Illustrate present embodiment below with reference to Fig. 1-9, the invention belongs to material increasing fields, more specifically, being related to one
Kind of continuous fiber reinforced composite materials increasing material manufacturing spray head, is made of outer spray head 1 and interior spray head 2, and nozzle structure is simple, size compared with
It is small, formed precision can be improved；In addition, the vertical distance between the outlet and the outlet of outer spray head of interior spray head is adjustable, can control
Fibrous composite processed to neutrality, improve Forming Quality.
The interior spray head 2 is threadedly coupled in the inside of outer spray head 1, and the inside of the interior spray head 2 is equipped with for wearing fiber filament
II 2-3 of inner cavity, the inside of the outer spray head 1 is equipped with I 1-3 of inner cavity for accommodating resin material, I 1-3 of inner cavity and inner cavity II
2-3 is coaxial, and the connecting hole 1-1, the connecting hole 1-1 that connection I 1-3 of inner cavity is additionally provided on the outer spray head 1 are located at outer spray head 1
Side.It is connected through a screw thread between outer spray head 1 and interior spray head 2, can be convenient spray head disassembly, when spray head blocking convenient for quickly clear
Reason.II 2-3 of inner cavity is located inside spray head, for across continuous fiber, resin material to enter I 1- of inner cavity by connecting hole 1-1
3, the resin material that can be constantly entered when resin melting after squeezes out and is wrapped in the surrounding of continuous fiber, and drives fiber filament
Constantly it is pierced by.I 1-3 of inner cavity and II 2-3 of inner cavity can coaxially guarantee that fiber filament is located at the center of resin.Connecting hole 1-1 is located at outer
The side of spray head 1, rather than the diameter of outer spray head 1 can be effectively reduced by being located at the upper end of outer spray head 1, to reduce the ruler of spray head
It is very little, the quality of spray head is reduced, the quality of spray head is lighter, and formed precision is higher.
Specific embodiment 2:
Illustrate that present embodiment, present embodiment are described further embodiment one below with reference to Fig. 1-9, it is described outer
The upper end of spray head 1 is cylindrical body, and lower end is cone, is symmetrically arranged with two planes on the cylindrical body, described connecting hole 1-1
In in one of plane, another plane is equipped with location hole 1-2, and the location hole 1-2 is tapped blind hole.It is symmetrically arranged
Two planes are fixed convenient for outer spray head 1 with heat-conducting block, and processing connecting hole 1-1 and location hole 1-2 is also convenient for.Connecting hole 1-1 is to set
Internal thread through-hole, for connecting trunnion.Location hole 1-2 is used to cooperate with the hole on heat-conducting block, to will be led by screw
Heat block is fixedly connected with location hole 1-2, so that outer spray head 1 is fixed together with heat-conducting block, prevents outer spray head 1 mobile.
Specific embodiment 3:
Illustrate that present embodiment, present embodiment are described further embodiment one below with reference to Fig. 1-9, it is described interior
Spray head 2 is cylindrical body, and the upper end diameter of interior spray head 2 is greater than lower end diameter, and the upper end of interior spray head 2 is equipped with tappet head 2-1, described to twist
The lower end of tight head 2-1 is provided with block 2-2, and II 2-3 of inner cavity runs through interior spray head 2 and, the inner cavity II coaxial with interior spray head 2
2-3 is two circular cylindrical cavity compositions, and the diameter of upper end circular cylindrical cavity is greater than the diameter of lower end circular cylindrical cavity, two cylinders
The junction of shape cavity is arc-shaped transition.Tappet head 2-1 convenient for the tools such as spanner rotate in spray head 2, can make interior spray head 2 with
The outer closely connection of spray head 1, to prevent resin from overflowing from the gap that interior spray head 2 is connect with outer spray head 1.Block 2-2 is convenient for
Elastomeric pad is placed between outer spray head 1 and interior spray head 2.The diameter of the upper end circular cylindrical cavity of II 2-3 of inner cavity is greater than lower end cylinder
The diameter of shape cavity, penetrates convenient for fiber filament.Since fiber filament is the fibre bundle of more filaments composition, if upper end diameter is too small
It is not easy to fiber filament to penetrate, if lower end diameter is too big, fiber filament is easy dispersion.The junction of two circular cylindrical cavities is arc
Transition penetrates convenient for fiber filament.
Specific embodiment 4:
Illustrate that present embodiment, present embodiment are described further embodiment one below with reference to Fig. 1-9, it is described interior
Spray head 2 is made of upper nozzle 21 and lower nozzle 22, and the upper nozzle 21 and lower nozzle 22 are threadedly coupled, the upper nozzle 21 it is interior
Portion is equipped with the cylindrical hole I 211 through upper nozzle 21, and the cylindrical hole I 211 and upper nozzle 21 are coaxial, the lower nozzle 22
Inside be equipped with through lower nozzle 22 cylindrical hole II 221, the cylindrical hole II 221 and lower nozzle 22 are coaxial, the circle
Column through-hole I 211 and cylindrical hole II 221 are coaxial, and the diameter of the cylindrical hole I 211 is greater than the diameter of cylindrical hole II 221.
During printing, penetrate for a long time fiber filament can there is a situation where fiber plug, and plug be occur diameter compared with
Small interior spray head 2 exports.Cylindrical hole I 211 and cylindrical hole II 221 are for wearing fiber filament, since fiber filament is more filaments
The fibre bundle of composition, if the too small fiber filament that is not easy to of the diameter of cylindrical hole I 211 penetrates, if cylindrical hole II 221 is straight
Diameter is too big, and fiber filament is easy dispersion.The cavity and interior spray head 2 that cylindrical hole I 211 and cylindrical hole II 221 are formed coaxially can be with
Fiber filament is effectively ensured and is located at center.Since interior spray head 2 is longer, if internal vent occurs blocking and does not allow easy to clean, and
Interior spray head 2 is divided into upper nozzle 21 and lower nozzle 22, and backing out lower nozzle 22 when blocking can be quickly cleaned.
Specific embodiment 5:
Illustrate that present embodiment, present embodiment are described further embodiment four below with reference to Fig. 1-9, the circle
Column through-hole I 211 is connect with cylindrical hole II 221 by transition segmental arc 213, and the transition segmental arc 213 is smooth arc-shaped surface, from
And penetrated convenient for fiber filament, reduce frictional resistance suffered when fiber filament pulls out, so as to improve fibrous composite
To neutrality.
Specific embodiment 6:
Illustrate that present embodiment, present embodiment are described further embodiment one below with reference to Fig. 1-9, it is described interior
The outlet of spray head 2 is located within outer spray head 1, and the vertical distance between the outlet and the outlet of outer spray head 1 of the interior spray head 2 is 1-
6mm is provided with elastomeric pad between the outer spray head 1 and interior spray head 2.As shown in figure 8, fiber is normally positioned at the center of spray head
Position, fiber filament should be located at the middle position of resin in the fibrous composite printed, and fiber is not located in figure
The middle of resin, LbIt is significantly greater than La, this fiber is to the neutral poor Forming Quality that will affect fibrous composite.
Vertical distance between the outlet and the outlet of outer spray head 1 of interior spray head 2 is too small, it may appear that the phenomenon that fiber filament is pulled off, it is former
Because being that interior spray head 2 and the distance between workbench are smaller, interior spray head 2 can be pressed against fiber filament, and spray head is in print procedure
Continuous movement is needed, so that fiber filament is also constantly to pull out out of spray head, suffered extruding force is excessive, and fiber filament will be drawn
It is disconnected.When interior spray head 2 outlet the outlet of outer spray head 1 between vertical distance it is excessive when, fibrous composite to neutrality compared with
Difference, fiber can be drawn out from resin, and shaping workpiece is caused to fail.It can be seen in figure 9 that with interior spray head 2 outlet with
Vertical distance between the outlet of outer spray head 1 increases, and fiber increases neutral value, and fiber is deteriorated to neutrality.Outer spray head 1 and interior
It is provided with elastomeric pad between spray head 2, the vertical distance between the outlet of interior spray head 2 and the outlet of outer spray head 1 may be implemented
It adjusts, and does not influence the compactness being threadedly coupled between outer spray head 1 and interior spray head 2.
Specific embodiment 7:
Illustrate present embodiment below with reference to Fig. 1-9, present embodiment is described further embodiment one, described
Continuous fiber reinforced composite materials increasing material manufacturing spray head further includes heating device, and the heating device is for heating outer 1 He of spray head
Interior spray head 2 makes resin melting in I 1-3 of inner cavity.In fused glass pellet material increasing field, heating device is often selected existing
Heating rod, and be used cooperatively with thermistor, to control the temperature of heating rod.Heating device is for generating heat and transmitting
To outer spray head 1 and interior spray head 2, make resin melting in I 1-3 of inner cavity, the resin after fusing could be squeezed from the exit of outer spray head 1
Out.
Specific embodiment 8:
Illustrate that present embodiment, present embodiment are described further embodiment one below with reference to Fig. 1-9, it is described to add
It is connected between thermal and outer spray head 1 or interior spray head 2 by heat-conducting block, the heat-conducting block is metal block, the outer spray head 1, interior
Spray head 2 and heating device are each attached on heat-conducting block.Heat-conducting block is for fixed outer spray head 1, interior spray head 2 and heating device and will add
The heat transfer that thermal generates gives outer spray head 1 and interior spray head 2, frequently with aluminium block.
Specific embodiment 9:
Illustrate present embodiment below with reference to Fig. 1-9, present embodiment is described further embodiment one, described
Continuous fiber reinforced composite materials increasing material manufacturing spray head further includes the internal trunnion for being equipped with Teflon pipe, and the trunnion is threadedly coupled
In connecting hole 1-1.Inside is equipped with the trunnion of Teflon pipe for preventing resin melting blocking trunnion, this is fused glass pellet
The common technological means of material increasing field.
Specific embodiment 10:
Illustrate present embodiment below with reference to Fig. 1-9, present embodiment is described further embodiment one, described to beat
Print machine includes above-mentioned continuous fiber reinforced composite materials increasing material manufacturing spray head, realizes continuous fiber reinforced composite materials increasing material manufacturing
Common fused glass pellet 3D printer can be selected, changes spray head common in former printer into described in this patent company
Continuous fibre reinforced composites increasing material manufacturing spray head can realize that continuous fiber reinforced composite materials increase material continuous fiber and increase
Strong composite material increases material system.
Working principle: before the printing, in II 2-3 of inner cavity in inside spray head 2 or cylindrical hole I 211 and cylindrical hole
II 221 are formed by cavity and first penetrate continuous fiber, and continuous fiber is pierced by from the outlet of outer spray head 1.Pass through outer spray head 1
Connecting hole 1-1 send constantly into resin material to I 1-3 of inner cavity, resin material can be PLA resin or ABS resin etc., resin
It is squeezed out after material fusing from the outlet of I 1-3 of inner cavity, resin material can be wrapped in the surrounding of continuous fiber, shape during extrusion
It at columned fiber resin composite material and bonds on the table, material is increased by continuous mobile realize of workbench and spray head
Manufacture printing workpiece.The print head can be adapted for current existing 3D printer structure, and controls program and be equally applicable to
Existing program, fiber filament is continuous in print procedure, and fiber filament is cut after the completion of printing.
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 within the essential scope of the present invention also belong to guarantor of the invention
Protect range.
Claims (9)
1. continuous fiber reinforced composite materials increasing material manufacturing spray head, it is characterised in that: the continuous fiber reinforced composite materials increase material
Manufacture spray head is made of outer spray head (1) and interior spray head (2), and the interior spray head (2) is threadedly coupled in the inside of outer spray head (1), institute
The inside for stating interior spray head (2) is equipped with for wearing filametntary inner cavity II (2-3), and the inside of the outer spray head (1), which is equipped with, accommodates tree
The inner cavity I (1-3) of rouge material, the inner cavity I (1-3) and inner cavity II (2-3) coaxially, are additionally provided with connection on the outer spray head (1)
The connecting hole (1-1) of inner cavity I (1-3), the connecting hole (1-1) are located at the side of outer spray head (1)；
The interior spray head (2) is cylindrical body, and the upper end diameter of interior spray head (2) is greater than lower end diameter, and the upper end of interior spray head (2) is equipped with
The lower end of tappet head (2-1), the tappet head (2-1) is provided with block (2-2), and the inner cavity II (2-3) runs through interior spray head (2)
And coaxially with interior spray head (2), the inner cavity II (2-3) is two circular cylindrical cavity compositions, and the diameter of upper end circular cylindrical cavity is big
In the diameter of lower end circular cylindrical cavity, the junction of two circular cylindrical cavities is arc-shaped transition.
2. continuous fiber reinforced composite materials increasing material manufacturing spray head according to claim 1, it is characterised in that: the outer spray
The upper end of head (1) is cylindrical body, and lower end is cone, and two planes, the connecting hole (1-1) are symmetrically arranged on the cylindrical body
It is located in one of in plane, another plane is equipped with location hole (1-2), and the location hole (1-2) is tapped blind hole.
3. continuous fiber reinforced composite materials increasing material manufacturing spray head according to claim 1, it is characterised in that: the interior spray
Head (2) is made of upper nozzle (21) and lower nozzle (22), and the upper nozzle (21) and lower nozzle (22) are threadedly coupled, the upper spray
The inside of head (21) is equipped with the cylindrical hole I (211) through upper nozzle (21), the cylindrical hole I (211) and upper nozzle (21)
Coaxially, the inside of the lower nozzle (22) is equipped with the cylindrical hole II (221) through lower nozzle (22), the cylindrical hole II
(221) coaxially with lower nozzle (22), the cylindrical hole I (211) and cylindrical hole II (221) coaxially, the cylindrical hole I
(211) diameter is greater than the diameter of cylindrical hole II (221).
4. continuous fiber reinforced composite materials increasing material manufacturing spray head according to claim 3, it is characterised in that: the cylinder
Through-hole I (211) is connect with cylindrical hole II (221) by transition segmental arc (213), and the transition segmental arc (213) is smooth
Cambered surface.
5. continuous fiber reinforced composite materials increasing material manufacturing spray head according to claim 1, it is characterised in that: the interior spray
Head (2) outlet be located within outer spray head (1), between the outlet of the interior spray head (2) and the outlet of outer spray head (1) it is vertical away from
From for 1-6mm, elastomeric pad is provided between the outer spray head (1) and interior spray head (2).
6. continuous fiber reinforced composite materials increasing material manufacturing spray head according to claim 1, it is characterised in that: the company
Continuous fibre reinforced composites increasing material manufacturing spray head further includes heating device, the heating device for heat outer spray head (1) and
Interior spray head (2) makes resin melting in inner cavity I (1-3).
7. continuous fiber reinforced composite materials increasing material manufacturing spray head according to claim 6, it is characterised in that: the heating
It is connect between device and outer spray head (1) or interior spray head (2) by heat-conducting block, the heat-conducting block is metal block, the outer spray head
(1), interior spray head (2) and heating device are each attached on heat-conducting block.
8. continuous fiber reinforced composite materials increasing material manufacturing spray head according to claim 1, it is characterised in that: the company
Continuous fibre reinforced composites increasing material manufacturing spray head further includes the internal trunnion for being equipped with Teflon pipe, and the trunnion is threaded in
In connecting hole (1-1).
9. continuous fiber reinforced composite materials increasing material manufacturing printer, including it is such as described in any one of claims 1 to 6 continuous
Fibre reinforced composites increasing material manufacturing spray head.
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| CN108162395B (en) * | 2018-03-05 | 2024-05-10 | 郑州智高电子科技有限公司 | 3D printer and print head thereof |
| CN110053260B (en) * | 2019-05-22 | 2024-07-23 | 浙江大学 | 3D biological printing coaxial spray head and coaxiality maintaining additional device thereof |
| CN113211784B (en) * | 2020-02-05 | 2022-02-18 | 中国科学院福建物质结构研究所 | Workpiece with high sound insulation performance and preparation method thereof based on 3D printing |
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