CN108312508B - A kind of continuous fiber reinforced composite materials 3D printer spray head and printer - Google Patents
A kind of continuous fiber reinforced composite materials 3D printer spray head and printer Download PDFInfo
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- CN108312508B CN108312508B CN201810422932.3A CN201810422932A CN108312508B CN 108312508 B CN108312508 B CN 108312508B CN 201810422932 A CN201810422932 A CN 201810422932A CN 108312508 B CN108312508 B CN 108312508B
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- charging line
- spray head
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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
- B33Y70/00—Materials specially adapted for additive manufacturing
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Abstract
The invention belongs to material increasing field, it is related to a kind of continuous fiber reinforced composite materials 3D printer spray head and printer, can effectively prevents fiber filament and block spray head and prevent the resin material of melting from overflowing.Charging line is internally provided with the cavity for accommodating resin material, the open communication of cavity and charging line both ends；Wire squeeze device is used to that resin material to be sent into cavity and squeezed out from another end opening；Heating device is used for the intracorporal resin material of heating chamber, and temperature measuring equipment is used to measure the temperature of the intracorporal resin material of chamber；Wire feed pipeline, which is internally provided with, wears filametntary silk material cavity, and wire feed pipeline is fixedly connected on gear, and gear is rotatably connected on charging line, so that wire feed pipeline can be rotated around the axis of charging line, wire feed pipeline can not be moved up and down；The outlet end of wire feed pipeline is located at the outlet end of charging line, so that the resin material squeezed out is covered on the fiber filament being pierced by inside wire feed pipeline；Power device is for driving gear to rotate.
Description
Technical field
The invention belongs to material increasing fields, more specifically, being related to a kind of continuous fiber reinforced composite materials 3D printing
Machine 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
Authority's report《Wohlers Report 2011》The investigation result of 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 is easy to appear fibre
The phenomenon that tieing up silk plug dead spray head.
Summary of the invention
The invention mainly solves the technical problem of providing a kind of continuous fiber reinforced composite materials 3D printer spray head and
Printer can effectively prevent the phenomenon that fiber filament blocks spray head；Further, it is also possible to prevent the resin material of melting from overflowing.
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 3D printing spray head, by wire squeeze device, the charging line of both ends open, heating device, temperature measuring equipment, wire-feeding pipe
Road, gear and power device composition, can effectively prevent the phenomenon that fiber filament blocks spray head, can also prevent the resinous wood of melting
Material overflows.
The charging line is internally provided with the cavity for accommodating resin material, the cavity and the charging line both ends
Open communication；
In the feeding open at one end cavity that the wire squeeze device is used to resin material passing through the charging line simultaneously
It is squeezed out from another end opening of the charging line；
The heating device is for generating the intracorporal resin material of chamber described in heat, and the temperature measuring equipment is for measuring
The temperature of the intracorporal resin material of chamber；
The wire feed pipeline, which is internally provided with, wears filametntary silk material cavity, and the wire feed pipeline is fixedly connected on the tooth
On wheel, the gear is rotatably connected on the charging line, so that the wire feed pipeline can surround the axis of the charging line
Line rotation, the wire feed pipeline can not move up and down；The outlet end of the wire feed pipeline is located at the outlet end of the charging line,
So that the resin material squeezed out is covered on the fiber filament being pierced by inside the wire feed pipeline；
The power device is for driving the gear to rotate.
As advanced optimizing for the technical program, a kind of continuous fiber reinforced composite materials 3D printer spray head of the present invention
The continuous fiber reinforced composite materials 3D printer spray head further includes bearing and baffle ring, and the inner ring of the bearing is fixedly connected
On the charging line, the gear is fixedly connected on the outer ring of the bearing, and the baffle ring has 2,2 baffle rings it is outer
End is respectively fixedly connected on two end faces up and down of the gear, and the inner end of 2 baffle rings is extruded in the outer of the bearing respectively
On two end faces up and down of circle.
As advanced optimizing for the technical program, a kind of continuous fiber reinforced composite materials 3D printer spray head of the present invention
The wire feed pipeline is made of vertical pipeline and tilted tube, and the vertical pipeline is connected to tilted tube and organizes l-shaped, described
Angle between vertical pipeline and tilted tube is greater than 90 ° and less than 180 °, and the tilted tube is conical pipe and outlet end
For the small one end in aperture, the tilted tube is located at the outlet end of the charging line, so that the resin material squeezed out is covered on
On the fiber filament being pierced by inside the tilted tube；Fiber filament and the straight line of the track printed in the tilted tube
Section is in the same plane, and the tangent line of the fiber filament in the tilted tube and the segmental arc of the track printed is located at same
In plane.
As advanced optimizing for the technical program, a kind of continuous fiber reinforced composite materials 3D printer spray head of the present invention
The heating device is fixedly connected on the extruding end of the charging line, and is located above the extruding end of charging line.
As advanced optimizing for the technical program, a kind of continuous fiber reinforced composite materials 3D printer spray head of the present invention
The charging line is made of leakproof plug and charging line ontology, and the leakproof plug is made of big end and small end, described anti-
Leakage plug is structure as a whole, and the leakproof plug is internally provided with the pipeline I through the leakproof plug；The charging line
Ontology is internally provided with lower chamber and upper cavity, and the lower chamber is connected to upper cavity, and the diameter of the lower chamber is less than institute
State the diameter of upper cavity；The small end of the leakproof plug is threaded in the upper cavity of the charging line ontology.
As advanced optimizing for the technical program, a kind of continuous fiber reinforced composite materials 3D printer spray head of the present invention
The small end is made of thread segment and smooth section, and the thread segment is located at the lower section of the smooth section, is arranged on the thread segment
There is external screw thread；The inner ring interference fit of the bearing is connected in the smooth section, and the inner ring of the bearing is located at leakproof plug
It being formed by annular housing with charging line ontology, the lower end surface of the big end heads on the upper surface of the inner ring of the bearing,
The upper surface of the charging line ontology heads on the lower end surface of the inner ring of the bearing.
As advanced optimizing for the technical program, a kind of continuous fiber reinforced composite materials 3D printer spray head of the present invention
The lower surface of the small end is fitted tightly on the bottom surface of the upper cavity.
As advanced optimizing for the technical program, a kind of continuous fiber reinforced composite materials 3D printer spray head of the present invention
The charging line further includes brass billet and spray head, and the annular groove for placing the brass billet, the Huang are provided on the small end
Copper ring interference fit is connected in the annular groove, and the lower anchor ring of the brass billet is embedded into the charging line ontology, institute
The internal diameter for stating brass billet is greater than the diameter of the lower chamber, and the outer diameter of the brass billet is less than the diameter of the upper cavity；It is described
Spray head is threaded in pipeline I.
A kind of continuous fiber reinforced composite materials printer, including above-mentioned continuous fiber reinforced composite materials 3D printer
Spray head.
As advanced optimizing for the technical program, a kind of continuous fiber reinforced composite materials printer of the present invention further includes
For cutting filametntary shear.
A kind of continuous fiber reinforced composite materials 3D printer spray head and printer have the beneficial effect that：
1. fiber filament is located at the outer end in wire feed pipeline and being located at charging line, it can fundamentally prevent fiber silk plug
The phenomenon that printing head plug is caused in charging line.
2. charging line uses special structure, the resin material that melting can be effectively prevented overflows from charging line arrival end
Out the phenomenon that.
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 a kind of structural schematic diagram of continuous fiber reinforced composite materials 3D printer spray head of the present invention.
Fig. 2 is that a kind of structure of the specific embodiment of continuous fiber reinforced composite materials 3D printer spray head of the present invention is shown
It is intended to.
Fig. 3 is the structural schematic diagram of charging line ontology in charging line of the present invention.
Fig. 4 is the structural schematic diagram of leakproof plug in charging line of the present invention.
Fig. 5 is another structural schematic diagram of leakproof plug in charging line of the present invention.
Fig. 6 is another structural schematic diagram of charging line of the present invention.
Fig. 7 is the partial enlarged view in Fig. 6.
In figure：Charging line 1；Leakproof plug 11；Pipeline I 111；Big end 112；Small end 113；Thread segment 1131；Smooth section
1132；Lower surface 114；Charging line ontology 12；Lower chamber 121；Upper cavity 122；Bottom surface 123；Brass billet 13；Spray head 14；Add
Thermal 2；Temperature measuring equipment 3；Wire feed pipeline 4；Gear 5；Power device 6；Bearing 7；Baffle ring 8.
Specific embodiment
Specific embodiment one：
Illustrate present embodiment below with reference to Fig. 1-7, the invention belongs to material increasing fields, more specifically, being related to one
Kind of continuous fiber reinforced composite materials 3D printer spray head, by wire squeeze device, charging line 1, heating device 2, temperature measuring equipment 3,
Wire feed pipeline 4, gear 5 and power device 6 form, and can effectively prevent the phenomenon that fiber filament blocks spray head；Further, it is also possible to anti-
The resin material only melted overflows.
The charging line 1 is internally provided with 1 liang of the cavity for accommodating resin material, the cavity and the charging line
The open communication at end；Charging line 1 can use cylindrical pipe, and the internal cavity being arranged is coaxial, charging line 1
Top and bottom are openings, enter for resin material and squeeze out.
In the feeding open at one end cavity that the wire squeeze device is used to resin material passing through the charging line 1 simultaneously
It is squeezed out from another end opening of the charging line 1；Wire squeeze device can be using current existing fused glass pellet 3D printing
Wire squeeze device in machine, purpose are for will be similar as the wire squeeze device in fused glass pellet 3D printer
The resin material of wire rod, which is sent constantly into charging line 1 and generates thrust, squeezes the resin of melting from the outlet of charging line 1
Out.
The heating device 2 is for generating the intracorporal resin material of chamber described in heat, and the temperature measuring equipment 3 is for surveying
Measure the temperature of the intracorporal resin material of the chamber；Heating device 2 can use all kinds of devices that can generate heat, for example heat
Silk, heating rod etc., purpose are exactly to generate heat and by the intracorporal resin of chamber of intermetallic heat transmitting heating charging line 1
Material, so that resin material melts.Heating device 2 can directly be selected existing in the market, and when selection needs in view of power
With its volume size.Temperature measuring equipment 3 can use existing all kinds of temperature measuring equipments, such as thermistor in the market, but need
Consider its precision, preferably in 1 degrees centigrade, and maximum temperature should can achieve 300 degrees centigrades.Temperature measuring equipment 3
For measuring the temperature of heating device 2 and passing to control system, temperature measuring equipment 2 and heating device 3 are usually each attached to one
On block metal block, which is wrapped in the part that charging line 1 needs to heat.It is estimated by measurement 2 temperature of heating device
The temperature of resin material in charging line 1, it will usually have certain temperature difference, but not influence to use.
The wire feed pipeline 4, which is internally provided with, wears filametntary silk material cavity, fiber filament can be allowed to pass through out of it, wire feed
Pipeline 4 can be a metallic conduit.The wire feed pipeline 4 is fixedly connected on the gear 5, and the gear 5 is rotatablely connected
On the charging line 1, so that the wire feed pipeline 4 can be rotated around the axis of the charging line 1, the wire feed pipeline
4 can not move up and down；Wire feed pipeline 4 is rotated around the axis of charging line 1 to guarantee the fiber filament being pierced by inside it always
Positioned at the outlet end of 1 direction of advance of charging line.Wire feed pipeline 4 can not move up and down the outlet end position to guarantee wire feed pipeline 4
In the outlet end of the charging line 1, so that the resin material squeezed out is covered on the fiber being pierced by inside the wire feed pipeline 4
On silk；The outlet end of the wire feed pipeline 4 is located at the outlet end of the charging line 1, so that the resin material squeezed out is covered on
On the fiber filament being pierced by inside the wire feed pipeline 4；
The power device 6 is for driving the gear 5 to rotate.Power device can select existing steering engine, stepping electricity
The driving devices such as machine, to be rotated with moving gear 5, to drive wire feed pipeline 4 around the axis of charging line 1 by gear 5
Rotation.The specific kind of drive can be：The hole of fixed wire feed pipeline 4 is provided on gear 5, wire feed pipeline 4 is fixed on gear 5
On, gear 5 and charging line 1 are coaxial, and gear 5 is sequentially connected by other transmission gears and driving device.The wire squeeze
Device, heating device 2, temperature measuring equipment 3 and power device 6 control its working condition by control system, and control system can adopt
With existing development board, such as mega2560 development board.
Specific embodiment two：
Illustrate that present embodiment, present embodiment are described further embodiment one below with reference to Fig. 1-7, this is continuous
Fibre reinforced composites 3D printer spray head further includes bearing 7 and baffle ring 8, and the inner ring of the bearing 7 is fixedly connected on described
On charging line 1, the gear 5 is fixedly connected on the outer ring of the bearing 7, and the baffle ring 8 has 2,2 baffle rings 8 it is outer
End is respectively fixedly connected on two end faces up and down of the gear 5, and the inner end of 2 baffle rings 8 is extruded in the bearing 7 respectively
On two end faces up and down of outer ring.The inner ring of bearing 7 can be fixedly connected on the charging line 1 by way of interference fit
On, the gear 5 can be fixedly connected on the outer ring of the bearing 7 by way of interference fit, so that 5 turns of gear
It is dynamic to be connected on charging line 1.Gear 5 with it is coaxial on charging line 1, to guarantee that wire feed pipeline 4 can be around charging line 1
Axis rotation.Bearing 7 can reduce the frictional resistance between gear 5 and charging line 1.The outer end of baffle ring 8 can pass through bolt
It is fixedly connected on the gear 5, baffle ring 8 is circular ring shape.Baffle ring 8 is fixedly connected on gear 5, is equivalent to baffle ring 8 and gear 5
It is integrated.And the inner end of baffle ring 8 is extruded in respectively on the outer ring of the bearing 7, so that gear 5 is fixedly connected on institute
On the outer ring for stating bearing 7, so that wire feed pipeline 4 can not move up and down.
Specific embodiment three：
Illustrate present embodiment below with reference to Fig. 1-7, present embodiment is described further embodiment two, described to send
Fiber tube road 4 is made of vertical pipeline and tilted tube, and the vertical pipeline is connected to tilted tube and organizes l-shaped, described vertical
Angle between pipeline and tilted tube is greater than 90 ° and less than 180 °, vertical pipeline and tilted tube can be integral structure or
Both persons are formed by fixedly connecting, and the axis of vertical pipeline and the axis of charging line are parallel.Tilted tube goes out to charging line
Mouth inclination, so that tilted tube will not be interfered with the object or workbench printed.The tilted tube is taper
It manages and outlet end is the small one end in aperture, so that tilted tube will not occur to do with the object or workbench printed
It relates to.The tilted tube is located at the outlet end of the charging line 1, so that the resin material squeezed out is covered on from the tipping tube
On the fiber filament being pierced by inside road；The straightway of fiber filament and the track printed in the tilted tube is located at same flat
In face, the tangent line of fiber filament and the segmental arc of the track printed in the tilted tube is in the same plane.Quite
It is consistent in the filametntary track of tilted tube outlet end and the track of the resin material of wire feed pipe outlet, to make
It obtains resin material to be covered on fiber filament, fibrous material is clipped between two layers of resin material and forms fibrous composite, improves
The mechanical property of resin material.
Specific embodiment four：
Illustrate that present embodiment, present embodiment are described further embodiment three below with reference to Fig. 1-7, it is described to add
Thermal 2 is fixedly connected on the extruding end of the charging line 1, and is located above the extruding end of charging line 1.Heating device can
To be fixed on charging line by metal block, it can be metal block and be fixed on charging line, and heating device is fixed on gold
Belong on block.The heat that heating device generates can pass to the resinous wood in charging line by the heat transfer of metal material
Material, so that the temperature of resin material rises.The extruding end that heating device is fixedly connected on the charging line can be heated faster
The resin material for needing to heat does not need the resin material of heating without heating.Resin material positioned at charging line lower end needs
Can be just extruded after heating, and be located at charging line upper end resin material be not required to it is to be heated.Such setting is also
Resin material can be effectively prevented to overflow from charging line upper end, prevent from causing wire squeeze difficult.
Specific embodiment five：
Illustrate present embodiment below with reference to Fig. 1-7, present embodiment is described further embodiment two, described to send
Pipe material 1 is made of leakproof plug 11 and charging line ontology 12, and the leakproof plug 11 is made of big end 112 and small end 113,
The leakproof plug 11 is structure as a whole, and the leakproof plug 11 is internally provided with the pipeline I through the leakproof plug 11
111；The charging line ontology 12 is internally provided with lower chamber 121 and upper cavity 122, the lower chamber 121 and upper cavity
122 connections, the diameter of the lower chamber 121 are less than the diameter of the upper cavity 122；113 spiral shell of small end of the leakproof plug 11
Line is connected in the upper cavity 122 of the charging line ontology 12.When leakproof plug 11 is threaded in charging line ontology 12
When interior, pipeline I 111 is connected to lower chamber 121, and resin material is entered from the entrance of pipeline I 111 and from lower chamber 121
Outlet squeeze out.The diameter of pipeline I 111 is less than the diameter of lower chamber 121, and wall a part of small end 113 is fitted in epicoele
On the lower end surface of body 122, a part is exposed at 121 upper end of lower chamber, so that the resin material of fusing is not easy from leakproof plug
It is overflowed in 11 gaps being connect with charging line ontology 12.
Specific embodiment six：
Illustrate that present embodiment, present embodiment are described further embodiment five below with reference to Fig. 1-7, it is described small
End 113 is made of thread segment 1131 and smooth section 1132, and the thread segment 1131 is located at the lower section of the smooth section 1132, described
External screw thread is provided on thread segment 1131；The inner ring interference fit of the bearing 7 is connected in the smooth section 1132, the axis
The inner ring for holding 7 is located at leakproof plug 11 and charging line ontology 12 is formed by annular housing, the lower end surface of the big end 112
The upper surface of the inner ring of the bearing 7 is headed on, the upper surface of the charging line ontology 12 heads under the inner ring of the bearing 7
End face.Small end 113 is an integral structure, and smooth section 1132 thereon is for connecting bearing 7, the inner ring and smooth section of bearing 7
1132 interference fits.The roughness on 1132 surface of smooth section is smaller, for cooperating with the inner ring of bearing 7.When 11 spiral shell of leakproof plug
When line is connected in the upper cavity 122 of charging line ontology 12 and lower surface 114 and bottom surface 123 fit closely, leakproof plug
The lower end of 11 big end 112 can form an annular housing with the upper end of charging line ontology 12.The inner ring of the bearing 7 is located at
Leakproof plug 11 and charging line ontology 12 are formed by annular housing, and the lower end surface of the big end 112 heads on the bearing 7
Inner ring upper surface, the upper surface of the charging line ontology 12 heads on the lower end surface of the inner ring of the bearing 7 so that
The inner ring of bearing 7 is fixed in annular housing, can not be moved up and down.Such structure can make the whole ruler of charging line 1
It is very little smaller and meet transmission require.Since the overall dimensions requirement of printer head is smaller, such drive mechanism is
Very cleverly, it not only can guarantee the precision of transmission, but also can guarantee small-sized.
Specific embodiment seven：
Illustrate that present embodiment, present embodiment are described further embodiment six below with reference to Fig. 1-7, it is described small
The lower surface 114 at end 113 is fitted tightly on the bottom surface 123 of the upper cavity 122, so that the resin material of fusing will not be from
It overflows in gap between lower surface 114 and bottom surface 123.
Specific embodiment eight：
Illustrate present embodiment below with reference to Fig. 1-7, present embodiment is described further embodiment six, described to send
Pipe material further includes brass billet 13 and spray head 14, and the annular groove for placing the brass billet 13 is provided on the small end 113, described
The interference fit of brass billet 13 is connected in the annular groove, and the lower anchor ring of the brass billet 13 is embedded into the charging line ontology
In 12, the internal diameter of the brass billet 13 is greater than the diameter of the lower chamber 121, and the outer diameter of the brass billet 13 is less than the epicoele
The diameter of body 122.Brass billet 13 forms blocker ring together between lower surface 114 and bottom surface 123, is equivalent to so that lower surface
There is no gap, the gap that the resin material of melting can not again between lower surface 114 and bottom surface 123 between 114 and bottom surface 123
It overflows.The spray head 14 is threaded in pipeline I 111, and spray head 14 be only fitted under the action of threaded connection it is small
On the lower surface 114 at end 113, so that the resin material of fusing will not be between spray head 14 and the lower surface 114 of small end 113
Gap in overflow, and spill into the outside of charging line 1 along the screw thread between spray head 14 and pipeline I 111.In addition, spray head 14
The resin material that fusing can be effectively prevented spills into 1 outside of charging line out of pipeline I 111.
Specific embodiment nine：
Illustrate present embodiment below with reference to Fig. 1-7, a kind of continuous fiber reinforced composite materials printer, including above-mentioned
Continuous fiber reinforced composite materials 3D printer spray head described in one embodiment.
Specific embodiment ten：
Illustrate that present embodiment, present embodiment are described further embodiment nine below with reference to Fig. 1-7, the company
Continuous fibre reinforced composites printer further includes for cutting filametntary shear, and shear is for cutting fiber
Silk.Shear can be scissors etc..The other structures of printer can select existing fused glass pellet 3D printer
Structure.
Working principle：Control system control heating devices heat generates heat and controls the heating of temperature measuring equipment real-time measurement simultaneously
The temperature of device simultaneously passes to control system.Control system controls the temperature of heating device within the scope of certain temperature, such as
The temperature of resin material required heat to.The heat that heating device generates can pass to resinous wood by intermetallic heat transfer
Material, so that the temperature of resin material rises and reaches the temperature of need of work.When resin material reaches the temperature of need of work,
Control system can control wire squeeze device and be sent into resin material into charging line, when the intracorporal resin material of the chamber of charging line
More and more, under the extruding of pressure, the resin material of melting can squeeze out from the outlet end of charging line and be covered on fiber filament
Surface.Fiber filament can be directly sent to the outlet end of charging line by wire feed pipeline, so that the resin material squeezed out begins
It is covered on filametntary surface eventually.Charging line can move under the driving of the motion platform of printer, need to control at this time
System changes the direction of wire feed pipeline according to the motion profile of charging line, so that filametntary track and wire feed pipe outlet
The track of resin material be consistent, filametntary surface is covered on always to meet the resin material squeezed out, to be formed
Fibrous composite.Control system controls power device and rotates to change the position of wire feed pipeline with moving gear.
The displacement in three directions of printer that has been only more of the continuous fiber reinforced composite materials printer course of work, continuously
Fibre reinforced composites printer can make continuous fiber reinforced composite materials 3D printing spray head constantly exist according to print track
It is moved in two-dimensional surface, to form track.After the completion of single layer printing, it is also necessary to change continuous fiber reinforced composite materials 3D
The distance between printing head and printing plane are to continue to print next layer.After the completion of article finally prints, need to cut fibre
Tie up silk.
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 (10)
1. a kind of continuous fiber reinforced composite materials 3D printer spray head, by wire squeeze device, both ends open charging line (1),
Heating device (2), temperature measuring equipment (3), wire feed pipeline (4), gear (5) and power device (6) composition, the charging line (1)
Be internally provided with accommodate resin material cavity, the open communication of the cavity and the charging line (1) both ends；It is described to add
For thermal (2) for generating the intracorporal resin material of chamber described in heat, the wire feed pipeline (4), which is internally provided with, wears fiber
The silk material cavity of silk, it is characterised in that：
The wire squeeze device be used for resin material is interior by the feeding open at one end cavity of the charging line (1) and from
Another end opening of the charging line (1) squeezes out；
The temperature measuring equipment (3) is used to measure the temperature of the intracorporal resin material of the chamber；
The wire feed pipeline (4) is fixedly connected on the gear (5), and the gear (5) is rotatably connected on the charging line
(1) on, so that the wire feed pipeline (4) can be rotated around the axis of the charging line (1), the wire feed pipeline (4) can not
It moves up and down；The outlet end of the wire feed pipeline (4) is located at the outlet end of the charging line (1), so that the resinous wood squeezed out
Material is covered on the fiber filament being pierced by inside the wire feed pipeline (4)；
The power device (6) is for driving the gear (5) to rotate.
2. a kind of continuous fiber reinforced composite materials 3D printer spray head according to claim 1, it is characterised in that：The company
Continuous fibre reinforced composites 3D printer spray head further includes bearing (7) and baffle ring (8), and the inner ring of the bearing (7) is fixed to be connected
It connects on the charging line (1), the gear (5) is fixedly connected on the outer ring of the bearing (7), and the baffle ring (8) has 2
A, the outer end of 2 baffle rings (8) is respectively fixedly connected on two end faces up and down of the gear (5), the inner end of 2 baffle rings (8)
It is extruded on two end faces up and down of the outer ring of the bearing (7) respectively.
3. a kind of continuous fiber reinforced composite materials 3D printer spray head according to claim 2, it is characterised in that：It is described
Wire feed pipeline (4) is made of vertical pipeline and tilted tube, and the vertical pipeline is connected to tilted tube and organizes l-shaped, described
Angle between vertical pipeline and tilted tube is greater than 90 ° and less than 180 °, and the tilted tube is conical pipe and outlet end
For the small one end in aperture, the tilted tube is located at the outlet end of the charging line (1), so that the resin material covering squeezed out
On the fiber filament being pierced by inside the tilted tube；Fiber filament in the tilted tube is straight with the track that is printing
Line segment is in the same plane, and the tangent line of the fiber filament in the tilted tube and the segmental arc of the track printed is located at same
In one plane.
4. a kind of continuous fiber reinforced composite materials 3D printer spray head according to claim 3, it is characterised in that：It is described
Heating device (2) is fixedly connected on the extruding end of the charging line (1), and is located above the extruding end of charging line (1).
5. a kind of continuous fiber reinforced composite materials 3D printer spray head according to claim 2, it is characterised in that：It is described
Charging line (1) is made of leakproof plug (11) and charging line ontology (12), the leakproof plug (11) by big end (112) and
Small end (113) composition, the leakproof plug (11) are structure as a whole, and the leakproof plug (11) is internally provided with through described
The pipeline I (111) of leakproof plug (11)；The charging line ontology (12) is internally provided with lower chamber (121) and upper cavity
(122), the lower chamber (121) is connected to upper cavity (122), and the diameter of the lower chamber (121) is less than the upper cavity
(122) diameter；The small end (113) of the leakproof plug (11) is threaded in the upper cavity of the charging line ontology (12)
(122) in.
6. a kind of continuous fiber reinforced composite materials 3D printer spray head according to claim 5, it is characterised in that：It is described
Small end (113) is made of thread segment (1131) and smooth section (1132), and the thread segment (1131) is located at the smooth section
(1132) lower section is provided with external screw thread on the thread segment (1131)；The inner ring interference fit of the bearing (7) is connected to institute
It states on smooth section (1132), the inner ring of the bearing (7) is located at leakproof plug (11) and charging line ontology (12) is formed by
In annular housing, the lower end surface of the big end (112) heads on the upper surface of the inner ring of the bearing (7), the charging line sheet
The upper surface of body (12) heads on the lower end surface of the inner ring of the bearing (7).
7. a kind of continuous fiber reinforced composite materials 3D printer spray head according to claim 6, it is characterised in that：It is described
The lower surface (114) of small end (113) is fitted tightly on the bottom surface (123) of the upper cavity (122).
8. a kind of continuous fiber reinforced composite materials 3D printer spray head according to claim 6, it is characterised in that：It is described
Charging line (1) further includes brass billet (13) and spray head (14), is provided on the small end (113) and places the brass billet (13)
Annular groove, the brass billet (13) interference fit is connected in the annular groove, the lower anchor ring insertion of the brass billet (13)
In to the charging line ontology (12), the internal diameter of the brass billet (13) is greater than the diameter of the lower chamber (121), the Huang
The outer diameter of copper ring (13) is less than the diameter of the upper cavity (122)；The spray head (14) is threaded in pipeline I (111).
9. a kind of continuous fiber reinforced composite materials printer, including such as continuous fiber described in any item of the claim 1 to 8
Enhance composite material 3D printer spray head.
10. a kind of continuous fiber reinforced composite materials printer according to claim 9, it is characterised in that：It is described continuous
Fibre reinforced composites printer further includes for cutting filametntary shear.
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| CN201810422932.3A CN108312508B (en) | 2018-05-05 | 2018-05-05 | A kind of continuous fiber reinforced composite materials 3D printer spray head and printer |
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| CN201810422932.3A CN108312508B (en) | 2018-05-05 | 2018-05-05 | A kind of continuous fiber reinforced composite materials 3D printer spray head and printer |
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| US10173410B2 (en) * | 2015-12-08 | 2019-01-08 | Northrop Grumman Systems Corporation | Device and method for 3D printing with long-fiber reinforcement |
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Effective date of registration: 20200710 Address after: Harbin Kuncheng Technology Co., Ltd Patentee after: Harbin Kuncheng Technology Co., Ltd Address before: Xinghua City, Jiangsu province 225723 Taizhou city of East China Zhang Guo Zhen Hua Zhuang village four groups Patentee before: Hua Mingjin |
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