CN114474712A - Continuous fiber reinforced composite material efficient high-speed 3D printing head and using method thereof - Google Patents
Continuous fiber reinforced composite material efficient high-speed 3D printing head and using method thereof Download PDFInfo
- Publication number
- CN114474712A CN114474712A CN202210052808.9A CN202210052808A CN114474712A CN 114474712 A CN114474712 A CN 114474712A CN 202210052808 A CN202210052808 A CN 202210052808A CN 114474712 A CN114474712 A CN 114474712A
- Authority
- CN
- China
- Prior art keywords
- nozzle
- printing
- continuous fiber
- modules
- speed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/10—Processes of additive manufacturing
- B29C64/106—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
- B29C64/124—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
- B29C64/205—Means for applying layers
- B29C64/209—Heads; Nozzles
-
- 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
- B33Y10/00—Processes of additive manufacturing
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Optics & Photonics (AREA)
Abstract
A high-efficiency high-speed 3D printing head of a continuous fiber reinforced composite material and a using method thereof are disclosed, the printing head comprises a plurality of single-nozzle modules for 3D printing of continuous fibers, the plurality of single-nozzle modules are arranged in a longitudinally staggered parallel array mode, horizontal center distance exists between every two adjacent single-nozzle modules in the X direction, vertical center distance exists between every two adjacent single-nozzle modules in the Y direction, and all the single-nozzle modules are fixed on a support; the using method comprises a single-nozzle module working mode and a multi-nozzle module cooperative working mode, and the feeding speed of the printed fiber prepreg yarns is increased through a low-temperature preheating high-speed wire feeding stage, so that the fiber friction damage is reduced; and connecting adjacent deposition lines together through a high-temperature hot-pressing flattening stage, and improving the forming speed and efficiency of the 3D printing composite material by combining a multi-nozzle module collaborative printing mode, so that the rapid manufacturing of the thermoplastic resin matrix composite material is realized.
Description
Technical Field
The invention belongs to the technical field of additive manufacturing, and particularly relates to a continuous fiber reinforced composite material efficient high-speed 3D printing head and a using method thereof.
Background
The 3D printing technology for continuous fiber reinforced thermoplastic composite materials is developed mainly based on the material extrusion forming process in the traditional additive manufacturing technology, and can be subdivided into two technical forms according to the difference of materials: the in-situ impregnation 3D printing process is characterized in that main material fiber dry wires and thermoplastic resin wire materials are used as raw materials, and the raw materials are heated, melted, compounded, extruded and stacked layer by layer to form in the same printing head; the other type is a pre-impregnated filament 3D printing process, fiber tows and thermoplastic resin are compounded to prepare pre-impregnated filaments, and then the pre-impregnated filaments are directly sent into a 3D printing nozzle to be heated and melted to form a laminated layer for stacking and forming. At present, fiber materials used for 3D printing comprise carbon fibers, aramid fibers, glass fibers and the like, thermoplastic resin matrixes comprise PLA, PA, PC, PEEK and the like, the tensile strength of forming materials is maximally over 700MPa and far exceeds the performance of 3D printing pure materials, the level of the traditional composite material manufacturing process is reached, typical application cases of airplane supports, tool fixtures, bicycle integrated frames, medical artificial limbs and the like are formed, and the fiber materials have industrial application conditions.
However, there are still many problems and challenges to realize 3D printing of continuous fiber reinforced thermoplastic composite materials from small-lot, customized applications to large-lot, large-scale applications, and the most obvious disadvantages are low forming efficiency, mainly due to the following two reasons:
1) the printing speed is low. The 3D printing speed of the continuous fiber reinforced thermoplastic composite material is far lower than that of a 3D printing pure material, generally speaking, the printing speed of a pure material extrusion molding process can reach more than 50mm/s (3000mm/min), however, the in-situ impregnation printing speed of dry filaments in the continuous fiber is only about 100-200mm/min, the printing speed of the pre-impregnated filaments is improved, but the maximum printing speed can only reach about 20mm/s (1200 mm/min). The continuous fiber 3D printing adopts a lower forming speed, firstly, in order to increase the time of the material in the nozzle, the thermoplastic resin can be completely melted and is fully compounded with the fiber bundle, so that the effects of reducing the internal pores of the composite material and improving the interface performance are achieved, and the excellent performance of the composite material is ensured; secondly, in order to prevent fiber damage, in the process of heating, melting, extruding and depositing the fiber bundle through the nozzle, a shearing effect exists between the fiber bundle and the nozzle, the shearing effect is more serious at a high movement speed, continuous fibers, particularly carbon fibers, are more brittle, the shearing resistance is poor, fiber damage and even fiber shearing are easily caused in the forming process, and the mechanical property is reduced or printing failure is caused, so that the forming quality is ensured by reducing the printing speed.
2) The tow size is small. The continuous fiber reinforced thermoplastic composite material 3D printing generally adopts fibers of small tows as raw materials, and takes carbon fibers as an example, 1K carbon fiber tows are commonly used, the line width of the carbon fiber tows is relatively small when the carbon fiber tows are printed, generally about 1mm, and a single nozzle is adopted for forming each time, the forming characteristics of line lapping and layer-by-layer stacking of the 3D printing lead to the rapid increase of the reciprocating motion path of the nozzle, while the traditional composite material forming process such as a fiber laying technology usually adopts large tow fiber belts of 12K, 24K and the like for parallel laying of a plurality of tows, and the line width of one-time forming is far higher than that of the 3D printing. For 3D printing, theoretically, large tow fibers can also be used, but the large tow fibers bring about the problem that the feature size of the forming structure is limited, and the large tow fibers can only be used for forming parts with simpler structures such as composite laminated plates, but cannot be used for forming components with more complicated structures, especially components with small-size features, and limit the application scenarios of 3D printing of continuous fiber reinforced thermoplastic composite materials.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a continuous fiber reinforced composite material high-efficiency high-speed 3D printing head and a using method thereof, which realize the rapid manufacturing of thermoplastic resin matrix composite materials.
In order to achieve the purpose, the invention adopts the following technical scheme:
a high-efficiency high-speed 3D printing head made of continuous fiber reinforced composite materials comprises a plurality of single-nozzle modules 1 for 3D printing of continuous fibers, wherein the plurality of single-nozzle modules 1 are arranged in a longitudinally staggered parallel array mode, a horizontal center distance 3 exists between every two adjacent single-nozzle modules 1 in the X direction, a vertical center distance 4 exists between every two adjacent single-nozzle modules 1 in the Y direction, and all the single-nozzle modules 1 are fixed on a support 2.
The single-nozzle module 1 comprises an active wire feeding unit 6, a preheating unit 7 and a hot-pressing unit 8, wherein the active wire feeding unit 6 is arranged above the preheating unit 7, and the hot-pressing unit 8 is arranged behind the preheating unit 7; the active wire feeding unit 6 comprises a wire feeding gear 9 and a fiber shearing mechanism 10 arranged below the wire feeding gear; the preheating unit 7 comprises a nozzle 13 and a heating block 12 connected with the upper part of the nozzle, and a first heating unit 11 is arranged inside the heating block 12; the hot pressing unit 8 comprises a hot pressing roller 15, a second heating unit 16 is arranged in the hot pressing roller 15, and the hot pressing roller 15 is connected with a pressure unit 14; the continuous fiber prepreg 5 is fed to the inside of the heating block 12 and the nozzle 13 by the wire feeding gear 9, and the heat pressing roller 15 applies heat pressing to the deposited continuous fiber prepreg 5.
The use method of the continuous fiber reinforced composite material high-efficiency high-speed 3D printing head comprises the following steps:
in the working mode of the single-nozzle module, the continuous fiber prepreg 5 is firstly sent into a preheating unit 7 through a wire feeding gear 9, the preheating unit 7 controls the heating temperature to be at the glass transition temperature of thermoplastic resin 20 under the action of a first heating unit 11, dry fiber filaments 19 in the continuous fiber prepreg 5 are wrapped by the thermoplastic resin 20, and the thermoplastic resin 20 is directly contacted with the surface of a nozzle 13 in a softened state; the continuous fiber prepreg 5 is small tow fibers of 1K, 3K and the like, the continuous fiber prepreg 5 is fed at a high printing speed (more than 1500mm/min), and deposition of continuous fibers is carried out according to a specific path, wherein the process is a high-speed wire feeding stage 17; after the deposition of the continuous fiber pre-impregnated filaments 5 is finished, the temperature of the hot-pressing roller 15 is set to be higher than the melting point temperature of the thermoplastic resin 20, the continuous fiber pre-impregnated filaments 5 are flattened and widened under the extrusion force of the hot-pressing roller 15 to obtain an actual scanning line width 21, meanwhile, the thermoplastic resin 20 is melted to connect adjacent deposition lines together, and the process is a high-temperature hot-pressing flattening stage 18;
in the multi-nozzle module cooperative working mode, each single-nozzle module 1 executes tasks according to the flow of the high-speed wire feeding stage 17 and the high-temperature hot-pressing flattening stage 18, and the basic contour features 23 of the part comprise an equal-width straight line contour 24, a widening straight line contour 25, an equal-width curve contour 26 and a widening curve contour 27, and the method specifically comprises the following steps:
1) generating a continuous fiber filling path 22 according to the geometric relationship of the basic profile features 23 and the single actual scanning line width 21;
2) according to the number of the single-nozzle modules 1, distributing the generated continuous fiber filling paths 22 to different single-nozzle modules 1, and when the number of the continuous fiber filling paths 22 is larger than that of the single-nozzle modules, adopting a multi-printing strategy; when the number of the continuous fiber filling paths 22 is smaller than that of the single-nozzle modules 1, selecting the single-nozzle modules 1 with corresponding number, and finally obtaining motion paths required to be executed by different single-nozzle modules 1;
3) according to the movement path distributed by each single-nozzle module 1, designing the execution action time sequence of each single-nozzle module 1, considering the vertical center distance 4 in the Y direction between different single-nozzle modules 1 and the length of the movement path, determining the printing starting time, the fiber shearing time and the printing stopping time of each single-nozzle module 1, and forming a multi-nozzle module cooperative work movement instruction;
4) and controlling the 3D printing head to complete printing by utilizing the cooperative working instruction of the multiple spray head modules.
In the process of cooperative work of the multi-nozzle modules, an included angle 29 exists between the length direction of the support 2 and the printing direction 30, for the same printing direction 30, the size of the included angle 29 is changed by rotating the support 2, in the actual printing process, the size of the included angle 29 is changed in real time according to different rotating supports 2 of the basic outline features 23 of the part, line width changing printing is achieved, and forming of complex components is achieved.
The invention has the beneficial effects that:
according to the invention, the feeding speed of the printed fiber prepreg yarns is increased through the low-temperature preheating high-speed wire feeding stage, and the fiber friction damage is reduced; and then connecting adjacent deposition lines together through a high-temperature hot-pressing flattening stage, and simultaneously improving the forming speed and efficiency of the 3D printing composite material by combining a multi-nozzle module collaborative printing mode, thereby providing a feasible technical means for realizing 3D printing of the continuous fiber reinforced thermoplastic composite material into batch and large-scale application.
Drawings
Fig. 1 is a schematic view of the overall structure of a 3D printhead according to the present invention.
FIG. 2 is a schematic view of a single nozzle module according to the present invention.
FIG. 3 is a schematic diagram of a high-speed printing method of a single nozzle module according to the present invention.
FIG. 4 is a schematic diagram of a multi-nozzle cooperative high-efficiency printing method according to the present invention.
FIG. 5 is a schematic diagram of a line width variable printing method according to the present invention.
Detailed Description
The present invention will be further described with reference to the following examples and the accompanying drawings.
Referring to fig. 1, the high-efficiency high-speed 3D printing head made of the continuous fiber reinforced composite material comprises a plurality of single-nozzle modules 1 for 3D printing of continuous fibers, wherein the number of the single-nozzle modules 1 is selected according to requirements, the plurality of single-nozzle modules 1 are arranged in a longitudinally staggered parallel array mode, a horizontal center distance 3 exists between every two adjacent single-nozzle modules 1 in the X direction, and a vertical center distance 4 exists between every two adjacent single-nozzle modules 1 in the Y direction; because the small tow fiber is small in line width during printing, if the single spray head modules 1 are arranged in parallel in the transverse direction, due to the limitation of physical space of the spray heads, the horizontal center distance 3 between the adjacent single spray head modules 1 is difficult to be reduced to the range of the printing line width of the fiber bundle, and adjacent accumulated lines can be separated, so that the single spray head modules 1 are arranged in a longitudinally staggered parallel array mode; due to the adoption of staggered distribution, the limitation of physical space of the spray heads can be avoided, and the center distance of the adjacent spray heads in the X direction is adjusted to be within the range of the printing line width of the fiber bundle; all the single nozzle modules 1 are fixed on the support 2.
Referring to fig. 2, the single nozzle module 1 includes an active wire feeding unit 6, a preheating unit 7 and a hot pressing unit 8, the active wire feeding unit 6 is disposed above the preheating unit 7, and the hot pressing unit 8 is disposed behind the preheating unit 7; the active wire feeding unit 6 comprises a pair of wire feeding gears 9 and a fiber shearing mechanism 10 arranged below the wire feeding gears; the preheating unit 7 comprises a nozzle 13 and a heating block 12 which is connected with the upper part of the nozzle through threads, and a first heating unit 11 is arranged inside the heating block 12 and used for temperature control; the hot pressing unit 8 comprises a hot pressing roller 15, a second heating unit 16 is arranged in the hot pressing roller 15, and the hot pressing roller 15 is connected with a pressure unit 14; the continuous fiber prepreg filaments 5 are conveyed to the interior of a heating block 12 and a nozzle 13 through a wire feeding gear 9, a fiber cutting mechanism 10 between the wire feeding gear 9 and the heating block 12 can cut the fiber continuous fiber prepreg filaments 5, a first heating unit 11 in the heating block 12 is used for temperature control, a hot pressing unit 8 is located behind the heating block 12, a pressure unit 14 provides downward extrusion force, a second heating unit 16 provides a heat source, and the two units jointly act on a hot pressing roller 15 to apply hot pressing action to the deposited continuous fiber prepreg filaments 5.
The use method of the continuous fiber reinforced composite material high-efficiency high-speed 3D printing head comprises the following steps:
referring to fig. 3, in the single-nozzle module operating mode, the continuous fiber prepreg 5 is firstly fed into the preheating unit 7 under the action of friction force of the wire feeding gear 9, the preheating unit 7 controls the heating temperature to be near the glass transition temperature of the thermoplastic resin 20 under the action of the first heating unit 11, so as to preliminarily preheat the continuous fiber prepreg 5, and the thermoplastic resin 20 is kept in a softened state without being completely melted, so that the continuous fiber prepreg 5 has basic shaping capability, the dry fiber 19 in the continuous fiber prepreg 5 is wrapped by the thermoplastic resin 20, and the thermoplastic resin 20 directly contacts with the surface of the nozzle 13 in the softened state to lubricate and protect the dry fiber 19, so as to reduce fiber damage; the continuous fiber prepreg 5 is small tow fibers of 1K, 3K and the like, the diameter of the filament material is small, and the temperature can be heated to the glass transition temperature in a short time, so that the continuous fiber prepreg 5 can be fed at a high printing speed (more than 1500mm/min), and deposition of continuous fibers is carried out according to a specific path, the process is a high-speed filament feeding stage 17, the continuous fiber prepreg 5 is still kept at a small size and is not completely flattened in the high-speed filament feeding stage 17, and the deposition lines are still not combined and are kept in a dispersed independent state; after the deposition of the continuous fiber prepreg filaments 5 is completed, a hot pressing unit 8 behind the preheating unit 7 applies a hot pressing action to the continuous fiber prepreg filaments, wherein a pressure unit 14 provides a downward extrusion force for a hot pressing roller 15, a second heating unit 16 heats the hot pressing roller 15, the temperature of the hot pressing roller 15 is set above the melting point temperature of the thermoplastic resin 20 due to the fact that a nozzle 13 is in a high-speed moving state, the continuous fiber prepreg filaments 5 are flattened and widened under the extrusion force action of the hot pressing roller 15, an actual scanning line width 21 is obtained, meanwhile, the thermoplastic resin 20 is melted to connect adjacent deposition lines together, and the process is a high-temperature hot pressing flattening stage 18.
Referring to fig. 4, in the multi-nozzle module cooperative working mode, each single-nozzle module 1 performs tasks according to the flow of the high-speed wire feeding stage 17 and the high-temperature hot-pressing flattening stage 18, the basic contour features 23 of the common part include an equal-width straight line contour 24, a widened straight line contour 25, an equal-width curved line contour 26 and a widened curved line contour 27, and the specific working flow includes the following steps:
1) generating a continuous fiber filling path 22 according to the geometric relationship of the basic profile features 23 and the single actual scanning line width 21;
2) according to the number of the single-nozzle modules 1, distributing the generated continuous fiber filling paths 22 to different single-nozzle modules 1, when the number of the continuous fiber filling paths 22 is greater than the number of the single-nozzle modules 1, adopting a multi-printing strategy, such as first printing 28-1, second printing 28-2 and third printing 28-3 in fig. 4, when the number of the continuous fiber filling paths 22 is less than the number of the single-nozzle modules 1, selecting a corresponding number of the single-nozzle modules 1, such as third printing 28-3 in fig. 4, and finally obtaining motion paths required to be executed by different single-nozzle modules 1, wherein in fig. 4, the motion paths corresponding to the single-nozzle modules 1 include a first printing motion path 1-1, a second printing motion path 1-2 and a third printing motion path 1-3;
3) according to the movement path distributed by each single-nozzle module 1, designing the execution action time sequence of each single-nozzle module 1, considering the vertical center distance 4 in the Y direction between different single-nozzle modules 1 and the length of the movement path, determining the printing starting time, the fiber shearing time and the printing stopping time of each single-nozzle module 1, and forming a multi-nozzle module cooperative work movement instruction;
4) and controlling the 3D printing head to complete printing by utilizing the cooperative working instruction of the multiple spray head modules.
Referring to fig. 5, in the process of cooperative work of multiple nozzle modules, a certain included angle 29 exists between the length direction of the support 2 and the printing direction 30, for the same printing direction 30, the size of the included angle 29 can be changed by rotating the support 2, the change of the size of the included angle 29 can cause the horizontal center distance 3 in the printing direction 30 between the single nozzle modules, the change of the horizontal center distance 3 can cause the change of the continuous fiber scanning line width 21, in the actual printing process, the size of the included angle 29 can be changed in real time according to different rotating supports 2 of the basic contour features 23 of the part to realize variable line width printing, and the formation of a complex component is realized.
Claims (4)
1. The utility model provides a high-efficient high-speed 3D of continuous fibers reinforcing combined material beats printer head which characterized in that: the device comprises a plurality of single-nozzle modules (1) for 3D printing of continuous fibers, wherein the plurality of single-nozzle modules (1) are arranged in a longitudinally staggered parallel array mode, a horizontal center distance (3) exists between every two adjacent single-nozzle modules (1) in the X direction, a vertical center distance (4) exists between every two adjacent single-nozzle modules (1) in the Y direction, and all the single-nozzle modules (1) are fixed on a support (2).
2. The continuous fiber reinforced composite high efficiency high speed 3D printhead of claim 1, wherein: the single-nozzle module (1) comprises a driving wire feeding unit (6), a preheating unit (7) and a hot-pressing unit (8), wherein the driving wire feeding unit (6) is arranged above the preheating unit (7), and the hot-pressing unit (8) is arranged behind the preheating unit (7); the active wire feeding unit (6) comprises a wire feeding gear (9) and a fiber shearing mechanism (10) arranged below the wire feeding gear; the preheating unit (7) comprises a nozzle (13) and a heating block (12) connected with the upper part of the nozzle, and a first heating unit (11) is arranged in the heating block (12); the hot pressing unit (8) comprises a hot pressing roller (15), a second heating unit (16) is arranged in the hot pressing roller (15), and the hot pressing roller (15) is connected with a pressure unit (14); the continuous fiber pre-impregnated filaments (5) are conveyed to the interior of the heating block (12) and the nozzle (13) through the wire feeding gear (9), and the hot pressing roller (15) applies hot pressing action to the deposited continuous fiber pre-impregnated filaments (5).
3. The method for using the continuous fiber reinforced composite high-efficiency high-speed 3D printing head as claimed in claim 2, wherein the method comprises the following steps:
in the working mode of a single spray head module, continuous fiber pre-impregnated filaments (5) are firstly sent into a preheating unit (7) through a wire feeding gear (9), the preheating unit (7) controls the heating temperature to be the glass transition temperature of thermoplastic resin (20) under the action of a first heating unit (11), dry fiber filaments (19) in the continuous fiber pre-impregnated filaments (5) are wrapped by the thermoplastic resin (20), and the thermoplastic resin (20) is directly contacted with the surface of a spray head in a softened state; the continuous fiber prepreg silk (5) is 1K or 3K small tow fiber, the continuous fiber prepreg silk (5) is fed at a high printing speed exceeding 1500mm/min, and deposition of the continuous fiber is carried out according to a specific path, wherein the process is a high-speed silk feeding stage (17); after the deposition of the continuous fiber pre-impregnated filaments (5) is finished, the temperature of a heating roller (15) is set to be higher than the melting point temperature of thermoplastic resin (20), the continuous fiber pre-impregnated filaments (5) are flattened and widened under the hot pressing action of the heating roller (15), the actual scanning line width (21) is obtained, meanwhile, the thermoplastic resin (20) is melted to connect adjacent deposition lines together, and the process is a high-temperature hot pressing flattening stage (18);
under the cooperative working mode of the multiple spray head modules, each single spray head module (1) executes tasks according to the flow of a high-speed wire feeding stage (17) and a high-temperature hot-pressing flattening stage (18), and the basic contour characteristics (23) of the part comprise an equal-width straight line contour (24), a widening straight line contour (25), an equal-width curve contour (26) and a widening curve contour (27), and specifically comprise the following steps:
1) generating a continuous fiber fill path (22) from the geometric relationship of the base profile features (23) and the single actual scan line width (21);
2) according to the number of the single-nozzle modules (1), distributing the generated continuous fiber filling paths (22) to different single-nozzle modules (1), and when the number of the continuous fiber filling paths (22) is larger than the number of the single-nozzle modules, adopting a multi-printing strategy; when the number of the continuous fiber filling paths (22) is smaller than that of the single-nozzle modules (1), selecting the corresponding number of the single-nozzle modules (1), and finally obtaining the motion paths required to be executed by different single-nozzle modules (1);
3) according to the motion path distributed by each single-nozzle module (1), designing the execution action time sequence of each single-nozzle module (1), and considering the vertical center distance (4) in the Y direction between different single-nozzle modules (1) and the length of the motion path, determining the printing starting time, the fiber shearing time and the printing stopping time of each single-nozzle module (1) to form a multi-nozzle module cooperative work motion instruction;
4) and controlling the 3D printing head to complete printing by utilizing the cooperative working instruction of the multiple spray head modules.
4. The method of claim 3, wherein: in the process of cooperative work of the multiple spray head modules, an included angle (29) exists between the length direction of the support (2) and the printing direction (30), for the same printing direction (30), the size of the included angle (29) is changed by the rotating support (2), in the actual printing process, the size of the included angle (29) is changed in real time according to different rotating supports (2) of basic contour characteristics (23) of parts, line width changing printing is achieved, and forming of complex components is achieved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210052808.9A CN114474712B (en) | 2022-01-18 | 2022-01-18 | Continuous fiber reinforced composite material efficient high-speed 3D printing head and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210052808.9A CN114474712B (en) | 2022-01-18 | 2022-01-18 | Continuous fiber reinforced composite material efficient high-speed 3D printing head and using method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114474712A true CN114474712A (en) | 2022-05-13 |
| CN114474712B CN114474712B (en) | 2022-10-18 |
Family
ID=81512208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210052808.9A Active CN114474712B (en) | 2022-01-18 | 2022-01-18 | Continuous fiber reinforced composite material efficient high-speed 3D printing head and using method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114474712B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021522089A (en) * | 2018-05-02 | 2021-08-30 | ネーデルランドセ オルガニサティエ フォール トエゲパスト−ナトールヴェテンシャッペリク オンデルゾエク ティエヌオー | Methods and systems for layering objects from solidifiable media |
| CN114986939A (en) * | 2022-06-02 | 2022-09-02 | 南京航空航天大学 | Shearing continuous beating mechanism for additive manufacturing of continuous fiber reinforced composite material |
| CN115042438A (en) * | 2022-06-17 | 2022-09-13 | 南京航空航天大学 | Printing head structure for continuous fiber prepreg wire |
| CN115195128A (en) * | 2022-07-19 | 2022-10-18 | 中南大学 | 3D printing method and device for continuous fiber reinforced structure |
| CN115256951A (en) * | 2022-06-28 | 2022-11-01 | 北京航空航天大学宁波创新研究院 | Printing method and system for continuous fiber structure |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105856562A (en) * | 2015-01-23 | 2016-08-17 | 中国科学院宁波材料技术与工程研究所 | Three-dimensional model printing system and forming method of three-dimensional model |
| CN107379539A (en) * | 2017-08-14 | 2017-11-24 | 上海宇航系统工程研究所 | A kind of continuous fiber prepreg 3D printing shower nozzle and its 3D printer, Method of printing |
| CN108136674A (en) * | 2016-06-17 | 2018-06-08 | 源秩科技（上海）有限公司 | Multiinjector 3D printing nozzle and Method of printing and 3D printing system |
| US20190232553A1 (en) * | 2018-02-01 | 2019-08-01 | Divergent Technologies, Inc | Apparatus and methods for additive manufacturing with variable extruder profiles |
| CN209580498U (en) * | 2019-01-29 | 2019-11-05 | 姚光纯 | A kind of spray head matrix arrangement 3D printing molding machine |
| CN111572016A (en) * | 2019-02-15 | 2020-08-25 | 中南大学 | 3D printing forming method of continuous fiber reinforced member |
| CN211390163U (en) * | 2019-09-25 | 2020-09-01 | 浙江闪铸三维科技有限公司 | Many shower nozzles of 3D printer aligning gear |
| CN212288758U (en) * | 2019-11-30 | 2021-01-05 | 共享智能铸造产业创新中心有限公司 | High resolution printhead |
| US20210078245A1 (en) * | 2018-05-02 | 2021-03-18 | Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek Tno | A method and system for layerwise forming an object from a medium capable of solidification |
| CN112706401A (en) * | 2020-12-07 | 2021-04-27 | 上海航天设备制造总厂有限公司 | Weak-anisotropy continuous fiber reinforced polymer composite material and additive manufacturing method |
| CN113147024A (en) * | 2021-04-16 | 2021-07-23 | 固纤(苏州)智能科技有限公司 | Spray head device with real-time shearing and feedback pressing functions for printing continuous fibers |
-
2022
- 2022-01-18 CN CN202210052808.9A patent/CN114474712B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105856562A (en) * | 2015-01-23 | 2016-08-17 | 中国科学院宁波材料技术与工程研究所 | Three-dimensional model printing system and forming method of three-dimensional model |
| CN108136674A (en) * | 2016-06-17 | 2018-06-08 | 源秩科技（上海）有限公司 | Multiinjector 3D printing nozzle and Method of printing and 3D printing system |
| CN107379539A (en) * | 2017-08-14 | 2017-11-24 | 上海宇航系统工程研究所 | A kind of continuous fiber prepreg 3D printing shower nozzle and its 3D printer, Method of printing |
| US20190232553A1 (en) * | 2018-02-01 | 2019-08-01 | Divergent Technologies, Inc | Apparatus and methods for additive manufacturing with variable extruder profiles |
| US20210078245A1 (en) * | 2018-05-02 | 2021-03-18 | Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek Tno | A method and system for layerwise forming an object from a medium capable of solidification |
| CN209580498U (en) * | 2019-01-29 | 2019-11-05 | 姚光纯 | A kind of spray head matrix arrangement 3D printing molding machine |
| CN111572016A (en) * | 2019-02-15 | 2020-08-25 | 中南大学 | 3D printing forming method of continuous fiber reinforced member |
| CN211390163U (en) * | 2019-09-25 | 2020-09-01 | 浙江闪铸三维科技有限公司 | Many shower nozzles of 3D printer aligning gear |
| CN212288758U (en) * | 2019-11-30 | 2021-01-05 | 共享智能铸造产业创新中心有限公司 | High resolution printhead |
| CN112706401A (en) * | 2020-12-07 | 2021-04-27 | 上海航天设备制造总厂有限公司 | Weak-anisotropy continuous fiber reinforced polymer composite material and additive manufacturing method |
| CN113147024A (en) * | 2021-04-16 | 2021-07-23 | 固纤(苏州)智能科技有限公司 | Spray head device with real-time shearing and feedback pressing functions for printing continuous fibers |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021522089A (en) * | 2018-05-02 | 2021-08-30 | ネーデルランドセ オルガニサティエ フォール トエゲパスト−ナトールヴェテンシャッペリク オンデルゾエク ティエヌオー | Methods and systems for layering objects from solidifiable media |
| JP7314174B2 (en) | 2018-05-02 | 2023-07-25 | ネーデルランドセ オルガニサティエ フォール トエゲパスト－ナトールヴェテンシャッペリク オンデルゾエク ティエヌオー | Method and system for layering objects from solidifiable media |
| CN114986939A (en) * | 2022-06-02 | 2022-09-02 | 南京航空航天大学 | Shearing continuous beating mechanism for additive manufacturing of continuous fiber reinforced composite material |
| CN115042438A (en) * | 2022-06-17 | 2022-09-13 | 南京航空航天大学 | Printing head structure for continuous fiber prepreg wire |
| CN115256951A (en) * | 2022-06-28 | 2022-11-01 | 北京航空航天大学宁波创新研究院 | Printing method and system for continuous fiber structure |
| CN115195128A (en) * | 2022-07-19 | 2022-10-18 | 中南大学 | 3D printing method and device for continuous fiber reinforced structure |
| CN115195128B (en) * | 2022-07-19 | 2024-06-11 | 中南大学 | 3D printing method and equipment for continuous fiber reinforced structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114474712B (en) | 2022-10-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114474712B (en) | Continuous fiber reinforced composite material efficient high-speed 3D printing head and using method thereof | |
| CN1120775C (en) | Reinforcing fiber base for composite material | |
| CN106573413B (en) | 3 D-printing system, 3 D-printing method, molding machine, fibre-bearing object and its manufacturing method | |
| EP3740373B1 (en) | Fiber-reinforced 3d printing | |
| CN101466535B (en) | Thermalplastic resin multi-layer reinforced sheet, production method thereof and forming method for thermalplastic resin composite material forming article | |
| CN102211409B (en) | Continuous fiber base cloth and thermoplastic resin composite board molding equipment | |
| CN102990933B (en) | Implementation method of selective laser sintering (SLS) technology and fiber implantation device | |
| CN102039684B (en) | A method for manufacturing a composite body and a composite body manufacturing arrangement | |
| CN106182494B (en) | A kind of preparation process of continuous fiber reinforced thermoplastic prepreg tape | |
| CN1207276A (en) | Female engaging member of surface fastener and method of manufacturing the same | |
| CN108215178A (en) | A kind of braiding increasing material manufacturing method in situ of continuous fiber reinforced composite materials | |
| CN101439586A (en) | Method for manufacturing continuous fiber reinforced plastic pre-impregnated material and used impregnation mold thereof | |
| CN114248437A (en) | 3D printing method for continuous fiber woven body reinforced fiber composite material | |
| WO2018203768A1 (en) | Method for additive manufacturing of products made of composite materials reinforced with continuous fibres | |
| CN108367466A (en) | The manufacturing method of compression moulding body | |
| CN211142331U (en) | Fiber bundle yarn vibration yarn spreading device based on hot air flow fusion fiber expansion | |
| CN114274504B (en) | Continuous fiber preform film laying, printing and forming method | |
| CN113320151B (en) | 3D printing head and printing method of continuous fiber reinforced resin composite material | |
| CN113103585B (en) | 3D printer head capable of laying continuous fiber web and printing method | |
| CN110154383A (en) | A method of utilizing corona treatment reinforcement material extrusion molding interface cohesion | |
| CN102212936A (en) | Production process of polyester filament asphalt felt base cloth | |
| CN103538262A (en) | Linen yarn/polypropylene thermoplastic reinforced composite material and production process thereof | |
| CN111823608B (en) | Extrusion-injection molding tool and extrusion-injection molding integrated manufacturing method | |
| CN108032537A (en) | A kind of preparation process of continuous lod plate | |
| CN115320093A (en) | Efficient 3D printing device and method for composite material sparse structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |