CN107443739B - A kind of same layer continuous fiber composite material 3D printer ejecting device - Google Patents
A kind of same layer continuous fiber composite material 3D printer ejecting device Download PDFInfo
- Publication number
- CN107443739B CN107443739B CN201610364573.1A CN201610364573A CN107443739B CN 107443739 B CN107443739 B CN 107443739B CN 201610364573 A CN201610364573 A CN 201610364573A CN 107443739 B CN107443739 B CN 107443739B
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- composite fiber
- fiber silk
- heat block
- wheel
- fixed
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
Abstract
The invention belongs to 3D printer field of structural design, are related to a kind of same layer continuous fiber composite material 3D melting printer head structure for integrating feeding, cutting, melting and refrigerating function.The feed mechanism on the print head top drives driven wheel by motor driven driving wheel, so that composite fiber silk be driven to move along the tangential direction that principal and subordinate takes turns, realizes feed function；Feed mechanism lower part is turned off mechanism, which drives four-bar mechanism by servo module, and then the blade movement above connecting rod is driven to cut off composite fiber silk；The melting mechanism of cutting mechanism lower part makes heat block heating by heating rod heating, its inside is made to be wrapped with the peripheral macromolecule thermoplastic material rear ejection in a molten state of carbon fiber or glass fibre；And cooling body is mainly realized by the electric fan being mounted in fan hub, the special designing of fan hub blows wind directly on the composite fiber silk of ejection；Overall structure is packed by sheet metal shell.
Description
Technical field
The invention belongs to 3D to melt printer Design, manufacturing field, and one kind is beaten for same layer continuous fiber composite material 3D
Print ejecting device, main feature are as follows: the spray head is the composite material 3D for integrating feeding, cutting, melting and refrigerating function
Printer head.
Background technique
3D forming technique at present on domestic and international market is main are as follows: the sintering of metal powder Direct Laser, selective laser are burnt
Knot, 3 D-printing cohere molding and fused glass pellet (FDM).It is wherein most widely used to surely belong to fused glass pellet
(FDM), the domestic printed material currently used for it is mainly thermoplastic material, such as ABS and PLA.Due to thermoplastic material intensity
It is low, it is not able to satisfy intensity requirement, therefore when in use often in order to enhance the intensity of this material, toughness etc., usually thereto
Reinforcing fiber, such as glass fibre is added, carbon fiber etc. becomes composite material；Fibers form in composite material has short fibre
Dimension, long fibre and 3 kinds of continuous fiber, wherein continuous fiber to the reinforcing effects of the indexs such as the intensity, toughness of composite material much
More than other two kinds of fibers forms；Continuous fiber composite material 3D printing process is such that print several layers of matrix high score first
Sub- thermoplastic material (such as ABS, PLA or nylon etc.), then start print fibrous layer, also will containing fiber (carbon fiber or
Glass fibre) composite fiber silk be laid on base material layer, since composite fiber silk outer layer covers have matrix
High molecular thermoplast, inside are fiber filament, when composite fiber silk sprays at the matrix high molecular thermoplast of outside
In melting high viscosity liquid state, therefore it is easy to be bonded to one with existing basis material.The same layer of usual part is cut
Composite fiber silk can not be all covered in face, gap section is still filled by basis material, therefore is needed in print procedure
Constantly switching print head could complete same layer composite material and mix laying with basis material.When by continuous fiber composite material
When 3D printing head switches to basis material print head, it is necessary to cut off continuous composite material fiber filament, in order to matrix print head into
Row printing；For matrix high molecular thermoplast's print head, have sale, and technology maturation on the market at present, however, at present
Domestic 3D printer can not also print the composite material of continuous fiber, and in the U.S., this printing technique be also it is at the early-stage,
Although having there is the 3D printer of printing composite material, it is isolated system that it, which feeds, cuts off with spray head, leads to composite wood
Expect that fiber filament is too long, large piece article can only be printed, small article cannot be printed, it can not piddler when printing small article；This collection
Feeding, cutting, melting and the cooling 3D printing spray head being integrated are able to solve the above problem；It present invention can be widely used to vapour
The fields such as vehicle, Aeronautics and Astronautics.
Summary of the invention
The purpose of the present invention is to above-mentioned existing technical problem and defect, design one kind can continuously shoot out it is compound
The 3D printer spray head of material fiber silk, which integrates feeding, cutting, melting and refrigerating function, compact-sized, convenient
It is practical.
The invention belongs to 3D printer field of structural design, are related to a kind of 3D melting printer head structure, in particular to
It is a kind of with cutting function and can continuously shoot out composite fiber silk 3D melt printer head structure.The present invention is adopted
Technical solution is: design a kind of 3D melting printer head structure, this spray head will continuously shoot out it is internal be carbon fiber or
Glass fibre, outside are wrapped with the composite fiber silk of high molecular thermoplast's (such as nylon, ABS, PLA, PC, PPSF).
Print head topmost is the continuous feed mechanism of composite fiber silk, and feed mechanism provides power by motor, and driving is actively
Wheel rotation drives driven wheel rotation, and driving wheel is fixed on motor shaft, has a groove on driven wheel, composite fiber silk is set
In in the groove of two wheel treads, as the operating of motor is so that composite fiber silk is transported along the tangential direction that principal and subordinate takes turns
It is dynamic, so that composite fiber silk be made to complete feed function；Feed mechanism lower part is turned off mechanism, and cutting mechanism is a set of four company
Linkage drives parallel motion, the knife for fixing it above by servo module wherein being fixed with blade on a connecting rod
Piece cuts off composite fiber silk；Cutting mechanism lower part is melting and cooling body, melts the heating in mechanism and mainly passes through admittedly
The heating rod on heat block is scheduled on to heat to heat block, heat block heating is made by heating rod heating in this way, to pass
Heat is passed to pipeline and its nozzle, makes to spray again after the outer layer high molecular thermoplast of composite fiber silk is in a molten state
Out；Cooling body mainly realizes that electric fan is mounted in fan hub by electric fan, and fan hub is fixed on intermediate plate, wind
The wind that the design of fan case blows out fan is directly blown on the composite fiber silk of ejection.Last overall structure is logical
Cross sheet metal shell packaging.
The spray head is in use, be first fed to melting mechanism for composite fiber silk by feed mechanism, melting mechanism is to it
It is heated, the thermoplastic macromolecule material of the fiber filaments such as glass fibre or carbon fiber outer surface, such as ABS will be rolled in, PLA etc. is molten
Melt, then spray it together with fiber filament, since thermoplastic material tool is viscosity, fiber filament is directly bonded to be printed
On object, then by cooling body it is quickly cooled down thermoplastic material, be thus solidificated in fiber filament in printed object, risen
To invigoration effect；Reasonable planning piddler track, is covered with same printable layer for fiber filament, then controls cutting mechanism and cuts off this
The fiber filament of layer；Then next layer of printing is carried out, until the printing of 3D object is completed.
Detailed description of the invention
Fig. 1, Fig. 2, Fig. 3, Fig. 4 are the whole installation diagram of the present invention, and Fig. 5 is four-bar mechanism module.
Piece number illustrates in figure:
1. motor, 2. driving wheels, 3. driven wheels, 4. levers, 5. springs, 6. bolts, 7. composite fiber silks, 8. watch
Take module, 9. intermediate plates, 10. connecting rods, 11. cutter fixing pieces, 12. blades, 13. locating shafts, pipeline on 14., 15. lower pipelines,
16. heat block, 17. heating rods, 18. nozzles, 19. temperature sensors, 20. pressing plates, 21. heat block positioning plates, 22. interfixes
Axis, 23. fans, 24. fan hubs
Specific embodiment
Explanation is described in detail to embodiment of the present invention with reference to the accompanying drawing.
The invention belongs to the 3D printer nozzle structure of same layer continuous fiber composite material, the spray head be collection feeding, cutting,
The composite material 3D printer spray head that melting and refrigerating function are integrated.
Feed function is that power is provided by motor 1, and driving driving wheel 2 rotates, and driving wheel 2 is that gear either rubs
Wheel, driving wheel 2 drive driven wheel 3 to rotate, and driven wheel 3 is one with reeded flat wheel, and driving wheel 2 is fixed on motor 1
In shaft, driven wheel 3 is bolted in a spring lever mechanism, and there is a spring 5 in 4 one end of lever, passes through adjustment spring 5
The bolt 6 on top carrys out the stroke of adjustment spring 5, so that the compression degree of driving wheel 2 Yu driven wheel 3 is adjusted, to be closed
Suitable pretightning force, by inside be wrapped with outside carbon fiber or glass fibre high molecular thermoplast (such as nylon, ABS, PLA,
PC, PPSF etc.) composite fiber silk 7 is placed between driven wheel, while being placed it in the groove of driven wheel 3, due to
Driven wheel 3 is tightly attached on driving wheel 2 by pressing device, therefore composite fiber silk 7 is pressed in the groove of driven wheel 3
Interior, driving wheel 2 drives driven wheel 3 to rotate, since composite fiber silk 7 is pressed between two-wheeled, so that composite fiber
Silk 7 is moved along the tangential direction of driven wheel, so that composite fiber silk 7 be made to complete feed function.
Principle of the realization of cutting function based on a four-bar linkage structure provides power, servo module 8 by servo module 8
It is fixed on intermediate plate 9, has a wheel with holes on the output shaft of servo module 8, servo module 8 is by being connected in the company that it is taken turns
Bar 10 is connect with cutter fixing piece 11, and the blade 12 for cutting composite fiber silk 7 is fixed on cutter by two bolts and is consolidated
Determine on part 11, cutter fixing piece 11 is connect by locating shaft 13 with intermediate plate 9, and 13 one end of locating shaft is helicitic texture, is tightened in
On intermediate plate 9, the other end passes through cutter fixing piece 11, positions below by a circlip, composite fiber silk 7 is from being fixed on
Between a pipeline 14 on plate 9 along under, subsequently into the pipeline 15 being fixed on heat block 16, there are a seams among two pieces of pipelines
Gap, blade 12 are exactly the composite fiber silk 7 cut off inside it by moving back and forth in gap, such servo module 8
On output wheel rotation drive connecting rod mechanism movement, to swing on locating shaft 13 with cutter fixing piece 11, cutter is solid
Determine the blade 12 on part 11 and follow the swing of cutter fixing piece 11 to cut off composite fiber silk 7 in gap, is cut to reach
The purpose of disconnected composite fiber silk.
Melting function mainly heats heat block 16 by the heating rod 17 being fixed on heat block 16, heat block
16 tops are the pipelines 15 connected into composite fiber silk 7, and what is connected below is the nozzle 18 of composite fiber silk 7 out,
16 heating of heat block is made by the heating of heating rod 17 in this way, to transmit heat to pipeline 15 and its nozzle 18, makes composite material
It is sprayed again after the peripheral high molecular thermoplast of fiber filament 7 is in a molten state, the detection of temperature is by being connected to heat block
Temperature sensor 19 on 16 detects, and the heat block 16 between pressing plate 20 and heat block positioning plate 21 is determined by two bolts
Position, and heat block positioning plate 21 is connect by interfix axis 22 with intermediate plate 9,22 both ends of interfix axis are screw thread, one end
It is tightened on heat block positioning plate 21, the other end is fixed after passing through intermediate plate 9 by nut.
The realization of refrigerating function mainly realizes that electric fan 23 is mounted in fan hub 24, fan hub by electric fan 23
24 are fixed on intermediate plate 9 by two bolts, and the wind that the design of fan hub 24 blows out fan, which is directly blown, to be sprayed
Composite fiber silk 7 on, play good cooling effect.
The present invention significantly improves the mechanical performance (such as intensity and toughness) of 3D printer printout, and maximum advantage is just
Be the 3D printer head device be integrate feeding, cutting, melting and its refrigerating function structure, it is compact-sized,
It is convenient and practical, substantially increase the application range of continuous fiber composite material 3D printer.
Claims (1)
1. a kind of same layer continuous fiber composite material 3D printer ejecting device, main feature are as follows: the spray head is collection feeding, cuts
The composite material 3D printer spray head that disconnected, melting and refrigerating function are integrated；Its feed function is to provide to move by motor (1)
Power, driving driving wheel (2) rotation, driving wheel (2) they are gear or friction pulley, and driving wheel (2) drives driven wheel (3) rotation, from
Driving wheel (3) is one with reeded flat wheel, and driving wheel (2) is fixed in the shaft of motor (1), and driven wheel (3) passes through spiral shell
Bolt is fixed in a spring lever mechanism, and lever (4) one end has a spring (5), passes through the bolt (6) on adjustment spring (5) top
Carry out the stroke of adjustment spring (5), so that the compression degree of driving wheel (2) Yu driven wheel (3) is adjusted, so that it is suitable to obtain one
Inside is to be wrapped with high molecular thermoplast's composite fiber silk (7) outside carbon fiber or glass fibre to place by pretightning force
It between driven wheel, while placing it in the groove of driven wheel (3), since driven wheel (3) is tightly attached to by pressing device
On driving wheel (2), therefore composite fiber silk (7) is pressed in the groove of driven wheel (3), and driving wheel (2) drives driven
(3) rotation is taken turns, since composite fiber silk (7) is pressed between two-wheeled, so that composite fiber silk (7) is taken turns along principal and subordinate
Tangential direction movement, thus make composite fiber silk (7) complete feed function；The realization of its cutting function is based on one or four and connects
The principle of rod structure provides power by servo module (8), and servo module (8) is fixed on intermediate plate (9), servo module (8)
Output shaft on have a wheel with holes, servo module (8) passes through the connecting rod (10) being connected on its wheel and cutter fixing piece (11)
The blade (12) for cutting composite fiber silk (7) is fixed on cutter fixing piece (11), cutter by connection by two bolts
Fixing piece (11) is connect by locating shaft (13) with intermediate plate (9), and locating shaft (13) one end is helicitic texture, is tightened in intermediate plate
(9) on, the other end passes through cutter fixing piece (11), positions below by a circlip, and upper pipeline (14) is fixed on intermediate plate (9)
On, lower pipeline (15) is fixed on heat block (16), under composite fiber silk (7) is suitable from upper pipeline (14), subsequently under
Pipeline (15) is inner, and there are a gaps among upper pipeline (14) and lower pipeline (15), and blade (12) in gap by moving back and forth
To cut off the composite fiber silk (7) inside it, the rotation drive link mechanism fortune of the output wheel on such servo module (8)
Dynamic, to swing on locating shaft (13) with cutter fixing piece (11), the blade (12) on cutter fixing piece (11) follows knife
Has the swing of fixing piece (11) to cut off composite fiber silk (7) in gap, to reach cutting composite fiber silk
Purpose；It melts function and is mainly heated by the heating rod (17) being fixed on heat block (16) to heat block (16),
Heat block (16) top is the lower pipeline (15) connected into composite fiber silk (7), and what is connected below is that composite material is fine out
The nozzle (18) of silk (7) is tieed up, heat block (16) heating is made by heating rod (17) heating in this way, to transmit heat to lower pipeline
(15) and its nozzle (18), make to spray again after the outer layer high molecular thermoplast of composite fiber silk (7) is in a molten state
Out, the detection of temperature is detected by the temperature sensor (19) being connected on heat block (16), and pressing plate (20) and heat block are fixed
Heat block (16) between position plate (21) is positioned by two bolts, and heat block positioning plate (21) passes through interfix axis
(22) it is connect with intermediate plate (9), interfix axis (22) both ends are screw thread, and one end is tightened on heat block positioning plate (21), separately
One end passes through intermediate plate (9) and is fixed afterwards by nut；The realization of its refrigerating function mainly passes through electric fan (23) Lai Shixian, electricity
Fan (23) is mounted on that fan hub (24) is inner, and fan hub (24) is fixed on intermediate plate (9) by two bolts, fan hub (24)
Design allow fan blow out wind directly blow on the composite fiber silk (7) of ejection, play cooling effect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610364573.1A CN107443739B (en) | 2016-05-30 | 2016-05-30 | A kind of same layer continuous fiber composite material 3D printer ejecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610364573.1A CN107443739B (en) | 2016-05-30 | 2016-05-30 | A kind of same layer continuous fiber composite material 3D printer ejecting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107443739A CN107443739A (en) | 2017-12-08 |
| CN107443739B true CN107443739B (en) | 2019-11-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610364573.1A Expired - Fee Related CN107443739B (en) | 2016-05-30 | 2016-05-30 | A kind of same layer continuous fiber composite material 3D printer ejecting device |
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| CN (1) | CN107443739B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2014235848B2 (en) | 2013-03-22 | 2018-11-08 | Gregory Thomas Mark | Three dimensional printing |
| US9694544B2 (en) | 2013-03-22 | 2017-07-04 | Markforged, Inc. | Methods for fiber reinforced additive manufacturing |
| CN114126841A (en) * | 2019-07-26 | 2022-03-01 | 通用电气公司 | Modular extrusion system for forming articles |
| CN112895448A (en) * | 2021-02-06 | 2021-06-04 | 山东大学 | Long fiber composite material multi-nozzle 3D printer with cutting device |
| CN113561479B (en) * | 2021-04-30 | 2023-02-24 | 北京航空航天大学 | Laser-assisted forming modularized hybrid additive manufacturing device |
| CN113752546A (en) * | 2021-09-23 | 2021-12-07 | 江南大学 | Fuse deposition type 3D printing wire shearing device and operation method |
| CN113844030A (en) * | 2021-11-01 | 2021-12-28 | 深圳拓竹科技有限公司 | Method for 3D printer and 3D printer device |
| CN114290679B (en) * | 2021-12-30 | 2023-10-03 | 浙江闪铸集团有限公司 | 3D printer wire feeding structure and debugging method thereof |
| CN115042438B (en) * | 2022-06-17 | 2023-03-21 | 南京航空航天大学 | Printing head structure for continuous fiber prepreg wire |
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|---|---|---|---|---|
| US5694324A (en) * | 1995-03-06 | 1997-12-02 | Masters; William E. | System and method for manufacturing articles using fluent material droplets |
| CN203863014U (en) * | 2014-05-27 | 2014-10-08 | 青岛金石塞岛投资咨询服务有限公司 | Consumable extrusion device of three-dimensional printer |
| CN105216329A (en) * | 2015-10-29 | 2016-01-06 | 武汉市贝恩三维科技有限公司 | Far and near end one 3D printhead |
| CN205202188U (en) * | 2015-11-19 | 2016-05-04 | 浙江韩益机电有限公司 | Three -dimensional shower nozzle of printing |
-
2016
- 2016-05-30 CN CN201610364573.1A patent/CN107443739B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5694324A (en) * | 1995-03-06 | 1997-12-02 | Masters; William E. | System and method for manufacturing articles using fluent material droplets |
| CN203863014U (en) * | 2014-05-27 | 2014-10-08 | 青岛金石塞岛投资咨询服务有限公司 | Consumable extrusion device of three-dimensional printer |
| CN105216329A (en) * | 2015-10-29 | 2016-01-06 | 武汉市贝恩三维科技有限公司 | Far and near end one 3D printhead |
| CN205202188U (en) * | 2015-11-19 | 2016-05-04 | 浙江韩益机电有限公司 | Three -dimensional shower nozzle of printing |
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| CN107443739A (en) | 2017-12-08 |
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