CN214294489U - 3D printing head structure of continuous carbon fiber reinforced thermosetting composite material - Google Patents

3D printing head structure of continuous carbon fiber reinforced thermosetting composite material Download PDF

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Publication number
CN214294489U
CN214294489U CN202023342395.3U CN202023342395U CN214294489U CN 214294489 U CN214294489 U CN 214294489U CN 202023342395 U CN202023342395 U CN 202023342395U CN 214294489 U CN214294489 U CN 214294489U
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printing
carbon fiber
continuous carbon
fiber reinforced
module
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CN202023342395.3U
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王轩
顾成言
周忠娇
李娜娜
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Shenzhen Collaborative Innovation High Tech Development Co ltd
Shenzhen Guangyunda Additive Manufacturing Research Institute
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Shenzhen Collaborative Innovation High Tech Development Co ltd
Shenzhen Guangyunda Additive Manufacturing Research Institute
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Abstract

The utility model relates to the technical field of 3D printing, in particular to a 3D printing head structure of a continuous carbon fiber reinforced thermosetting composite material, which comprises a lifting driving module, wherein the lifting driving module is connected with a printing spraying cavity and a printing pressure applying unit; a shearing module and a laser module are respectively arranged on two sides of the lower end of the printing and spraying cavity; the utility model provides a pair of continuous carbon fiber reinforcement thermosetting composite's 3D printhead structure can effective shutoff print spout the resin material that the intracavity probably flows to cut off the carbon fiber silk at any time printing the in-process, print the tactics and can have multiple change, print the application pressure adjustable of the unit of exerting pressure, can not destroy the range between printing part layer and layer, also can effectively get rid of air between the layer, improve the density of printing part.

Description

3D printing head structure of continuous carbon fiber reinforced thermosetting composite material
Technical Field
The utility model relates to a 3D prints technical field, especially relates to a continuous carbon fiber reinforcement thermosetting composite's 3D printhead structure.
Background
3D printing is the primary form of achieving "additive manufacturing," and is used by many countries of the world as an important part of advanced manufacturing. Carbon fiber composites are advantageous in areas where density, weight, fatigue properties, etc. are critical, as well as in applications where high temperature and high chemical stability are required. The traditional continuous carbon fiber forming and manufacturing method comprises a series of process flows of weaving, gluing, cloth laying, pressing and the like, high-precision requirements and loss of a die, and is limited by the complexity of a model to a certain extent, so that the full play of the function of a carbon fiber material is restricted. The 3D printing has the characteristics of integrated forming and no limitation of the complexity of a mold, is used for forming and manufacturing continuous carbon fiber composite materials, can simultaneously play the advantages of light weight, high strength and integrated forming of the 3D printing, manufactures carbon fiber parts with complex structural shapes, and has wide application prospect.
Found in practical research, current 3D printing device can't cut off the carbon fiber silk at any time printing the in-process, and it is comparatively single to print the tactics, and the layer of printing the part and the clearance between the layer is great, the layering phenomenon appears easily, and the quality can't be ensured.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned printing strategy that exists single, the poor scheduling problem of printing part quality, the utility model provides a continuous carbon fiber reinforcement thermosetting composite's 3D print head structure can effectively the shutoff print the resin material that probably flows in spouting the intracavity to cut off the carbon fiber silk at any time printing the in-process, print the strategy and can have multiple change, print the application pressure of exerting pressure adjustable of unit, can not destroy the range between printing part layer and the layer, also can effectively get rid of air between the layer, improve printing part's density.
In order to solve the technical problem, the utility model provides a concrete scheme as follows:
A3D printing head structure of a continuous carbon fiber reinforced thermosetting composite material comprises a lifting driving module, wherein the lifting driving module is connected with a printing spraying cavity and a printing pressure applying unit;
and a shearing module and a laser module are respectively arranged on two sides of the lower end of the printing and spraying cavity.
Optionally, the printing spray cavity comprises a spray cavity upper end, a spray cavity middle end and a spray cavity lower end which are connected in sequence and are mutually communicated;
the upper end of the spraying cavity is connected with a resin feeding guide pipe and a carbon fiber yarn feeding channel, a guide pipe is arranged inside the upper end of the spraying cavity, and the guide pipe is communicated with the carbon fiber yarn feeding channel and the middle end of the spraying cavity;
a middle end connecting channel is arranged inside the middle end of the spraying cavity, and a heating unit is arranged on the periphery of the middle end connecting channel;
spout the chamber lower extreme and be provided with the printing mouth, outside thermosetting resin passes through inside the resin feed pipe gets into to spout the chamber upper end, and in the carbon fiber silk passed through carbon fiber silk feedstock channel and got into the stand pipe, preheated for the combined material solidification through the heating unit, made it solidify more soon after extruding.
Optionally, the upper end of the spraying cavity is detachably connected with the middle end of the spraying cavity;
spout the chamber middle-end and spout for dismantling between the chamber lower extreme and be connected, the jam that the convenient printing in-process probably appears is got rid of and the clearance of material change, or accessories changes.
Optionally, a plurality of strip-shaped openings are uniformly and radially arranged on the pipe wall of the guide pipe, so that the resin and the carbon fiber yarns are conveniently contacted and mixed.
Optionally, the printing pressure applying unit is a roller, the roller is located at the lower end of the printing port, so that pressure is applied to the material extruded from the printing port, and the interlayer gap in the printing process is reduced, so as to improve the density of the printing part.
Optionally, the shearing module comprises a shearing driving unit and a shearing knife connected with the shearing driving unit, and the shearing knife acts under the action of the shearing driving unit to block the printing port and cut off the carbon fiber filaments.
Optionally, the 3D printing head structure further comprises a mounting frame, and the lifting driving module, the shearing module and the laser module are arranged on the mounting frame, so that adjustment and control of the positions of the modules are facilitated.
Optionally, a limiting plate is arranged on the printing spray cavity, and a limiting hole is formed in the limiting plate;
the mounting bracket is provided with a lifting guide rod corresponding to the limiting hole, and the lifting guide rod plays a role in lifting guide and improves printing accuracy.
Compared with the prior art, the beneficial effects of the utility model reside in that: the utility model provides a pair of continuous carbon fiber reinforcement thermosetting composite's 3D printhead structure can effective shutoff print spout the resin material that the intracavity probably flows to cut off the carbon fiber silk at any time printing the in-process, print the tactics and can have multiple change, print the application pressure adjustable of the unit of exerting pressure, can not destroy the range between printing part layer and layer, also can effectively get rid of air between the layer, improve the density of printing part.
Drawings
Fig. 1 is an overall structure schematic diagram of a 3D print head structure of a continuous carbon fiber reinforced thermosetting composite material provided in an embodiment of the present invention.
Fig. 2 is a cross-sectional view of a printing spray chamber provided in an embodiment of the present invention.
Fig. 3 is a schematic structural view of the guide tube provided in the embodiment of the present invention.
Wherein, 1 is a lifting driving module; 2 is a printing spray cavity; 3 is a printing pressure applying unit; 4 is a cutting module; 41 is a shearing driving unit; 42 is a shearing knife; 5 is a laser module; 6 is a resin supply conduit; 7 is a carbon fiber wire feeding channel; 8 is a guide tube; 81 is a strip-shaped opening; 9 is a heating unit; 10 is a printing port; 11 is a mounting frame; 12 is a limit plate; and 13 is a lifting guide rod.
Detailed Description
In order to explain the technical solution of the present invention in detail, the following will combine the drawings of the embodiments of the present invention to perform clear and complete description on the technical solution of the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments, which can be obtained by a person skilled in the art without any inventive work based on the described embodiments of the present invention, belong to the protection scope of the present invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
For example, a 3D printhead structure of a continuous carbon fiber reinforced thermosetting composite material, the 3D printhead structure includes a lifting driving module, the lifting driving module is connected with a printing spray chamber and a printing pressure applying unit; and a shearing module and a laser module are respectively arranged on two sides of the lower end of the printing and spraying cavity.
The 3D printing head structure of continuous carbon fiber reinforcement thermosetting combined material that this embodiment provided can effectively the shutoff print spout the resin material that the intracavity probably flows to cut off the carbon fiber silk at any time printing the in-process, print the strategy and can have multiple change, print the application pressure of exerting pressure unit adjustable, can not destroy the range between printing part layer and the layer, also can effectively get rid of the air between the layer, improve the density of printing the part.
As shown in fig. 1 and 2, a 3D printing head structure of continuous carbon fiber reinforced thermosetting composite material, this 3D printing head structure includes lift drive module 1, lift drive module is connected with prints and spouts chamber 2 and prints the unit 3 of exerting pressure, it is used for extruding the material to print the chamber, it is used for exerting pressure to the material that the chamber was extruded to print the unit of exerting pressure, reduce the interlaminar clearance of printing in-process, with the density that improves printing part, it rises or descends under lift drive module's effect to print the chamber and print the unit of exerting pressure.
In the printing process, the pressure applied by the printing pressure applying unit is adjusted through the lifting height of the lifting driving module, the gap between the printing pressure applying unit and the printing component is controlled by adjusting the relative position of the printing spraying cavity and the printing pressure applying unit, the interlayer gap is reduced, and the pressure applying unit can be set to apply pressure to the interlayer gap of the printing component every time one layer is printed.
The lower extreme both sides of spouting the chamber are equipped with respectively and cut module 4 and laser module 5 are printed, and the cutting module is used for spouting the resin that the intracavity probably flows and carrying out the shutoff to printing to cut off the carbon fiber silk at any time at the printing in-process, it can have multiple change to print the tactics. And the laser module is used for curing the extruded material.
In some embodiments, the printing spray chamber 2 comprises a spray chamber upper end, a spray chamber middle end and a spray chamber lower end which are connected in sequence and are communicated with each other, so that the thermosetting resin and the carbon fiber yarns can pass through the spray chamber middle end from the spray chamber upper end to the spray chamber lower end. Spout the chamber upper end and be connected with resin feed pipe 6 and carbon fiber yarn feedstock channel 7, outside thermosetting resin passes through resin feed pipe entering and spouts intracavity upper end inside, and carbon fiber yarn passes through carbon fiber yarn feedstock channel and gets into and spouts intracavity upper end inside, and thermosetting resin and carbon fiber yarn spout intracavity upper end inside and impregnate, spout the inside of intracavity upper end and be provided with stand pipe 8 to in carbon fiber yarn passes, stand pipe and carbon fiber yarn feedstock channel, spout the chamber middle-end intercommunication.
The inside of spouting the chamber middle-end is provided with middle-end interface channel, and middle-end interface channel's periphery is provided with heating unit 9, and thermosetting resin and carbon fiber silk spout the inside back of steeping in chamber upper end, through spouting the inside middle-end interface channel of chamber middle-end to carry out the solidification under heating unit's effect and preheat, make it solidify sooner after extruding, heating unit's temperature parameter accessible actual demand is adjusted and is set up.
The lower end of the spraying cavity is provided with a printing opening 10, and the mixed material is solidified and preheated through a heating unit, so that the mixed material is solidified more quickly after being extruded.
In some embodiments, the upper end of the spray cavity is detachably connected with the middle end of the spray cavity; spout the chamber middle-end and spout for dismantling between the chamber lower extreme and be connected, the jam that the convenient printing in-process probably appears is got rid of and the clearance that the material was changed, or accessories changes.
Spout the chamber upper end and spout the chamber middle-end, spout the chamber middle-end and spout and all can set up to threaded connection between the chamber lower extreme, neither increase extra part and connect the setting, also satisfy stable connection and convenient to detach's demand simultaneously.
In some embodiments, as shown in fig. 3, a plurality of strip-shaped openings 81 are uniformly and radially arranged on the wall of the guide tube 8, so as to facilitate the contact and mixing of the thermosetting resin and the carbon fiber filaments.
The quantity of bar open-ended can set up according to actual demand, like 4 or 6 etc. for being the interval setting between each bar open-ended, makes carbon fiber yarn surface and thermosetting resin even contact.
In some embodiments, the printing and pressing unit is a roller, the roller is located at the lower end of the printing port, so that the material extruded from the printing port can be pressed conveniently, and the interlayer gap in the printing process is reduced, so that the density of the printing part is improved.
In the printing process, can be according to the lift height difference of lift drive module, the module is cuted in the cooperation, the control is printed the in-process and is exerted pressure the unit and exert pressure the adjustment to printing part, promptly according to printing the demand, there is the multilayer condition of exerting pressure again of printing, after printing equipment printing parameter setting number of piles, it rises under lift drive module's effect to print the chamber of spouting, the shearing module cuts off the carbon fiber silk, and the shutoff is printed the lower extreme that spouts the chamber, prevent that thermosetting resin from flowing out, the height in chamber is spouted in the subsequent control printing, make and print the unit of exerting pressure and print the orbit walking before suitable height, carry out the clearance elimination between the printing part layer after the multilayer is printed, improve the density of printing part.
In some embodiments, the cutting module 4 includes a cutting driving unit 41 and a cutting knife 42 connected to the cutting driving unit, and the cutting knife acts under the action of the cutting driving unit to block the printing opening and cut off the carbon fiber filaments.
Wherein, 3D print head structure still includes mounting bracket 11, and lift drive module, shearing module and laser module are all located on the mounting bracket, are convenient for to the adjustment and the control of each module position.
A limiting plate 12 is arranged on the printing and spraying cavity, and a limiting hole is formed in the limiting plate; the mounting bracket is provided with a lifting guide rod 13 corresponding to the limiting hole, and the lifting guide rod plays a role in lifting guide and improves the printing accuracy.
The utility model provides a pair of continuous carbon fiber reinforcement thermosetting composite's 3D printhead structure can effective shutoff print spout the resin material that the intracavity probably flows to cut off the carbon fiber silk at any time printing the in-process, print the tactics and can have multiple change, print the application pressure adjustable of the unit of exerting pressure, can not destroy the range between printing part layer and layer, also can effectively get rid of air between the layer, improve the density of printing part.
It is understood that different embodiments among the components in the above embodiments can be combined and implemented, and the embodiments are only for illustrating the implementation of specific structures and are not limited to the implementation of the embodiments.
The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims (8)

1. The 3D printing head structure of the continuous carbon fiber reinforced thermosetting composite material is characterized by comprising a lifting driving module (1), wherein the lifting driving module (1) is connected with a printing spraying cavity (2) and a printing pressing unit (3);
and a shearing module (4) and a laser module (5) are respectively arranged on two sides of the lower end of the printing and spraying cavity (2).
2. The 3D printing head structure of the continuous carbon fiber reinforced thermosetting composite material as claimed in claim 1, wherein the printing spray cavity (2) comprises a spray cavity upper end, a spray cavity middle end and a spray cavity lower end which are connected in sequence and communicated with each other;
the upper end of the spraying cavity is connected with a resin feeding conduit (6) and a carbon fiber yarn feeding channel (7), a guide pipe (8) is arranged inside the upper end of the spraying cavity, and the guide pipe (8) is communicated with the carbon fiber yarn feeding channel (7) and the middle end of the spraying cavity;
a middle end connecting channel is arranged in the middle end of the spraying cavity, and a heating unit (9) is arranged on the periphery of the middle end connecting channel;
the lower end of the spraying cavity is provided with a printing port (10).
3. The continuous carbon fiber reinforced thermosetting composite material 3D printhead structure of claim 2, wherein the upper end of the ejection chamber is detachably connected with the middle end of the ejection chamber;
the middle end of the spraying cavity is detachably connected with the lower end of the spraying cavity.
4. 3D printhead structure of continuous carbon fiber reinforced thermosetting composite material according to claim 2, characterized in that a plurality of strip-shaped openings (81) are uniformly arranged on the pipe wall of the guide pipe (8) in radial direction.
5. 3D printhead structure of continuous carbon fiber reinforced thermosetting composite material according to claim 2, characterized in that the printing pressure unit (3) is a roller, which is located at the lower end of the printing port.
6. The continuous carbon fiber reinforced thermoset composite 3D printhead structure of claim 1, wherein the shear module (4) comprises a shear drive unit (41) and a shear knife (42) connected to the shear drive unit (41).
7. The 3D printhead structure of continuous carbon fiber reinforced thermosetting composite material according to claim 1, characterized in that the 3D printhead structure further comprises a mounting frame (11), and the lifting drive module (1), the shearing module (4) and the laser module (5) are all provided on the mounting frame (11).
8. The 3D printing head structure made of the continuous carbon fiber reinforced thermosetting composite material according to claim 7, wherein a limiting plate (12) is arranged on the printing spray cavity (2), and a limiting hole is formed in the limiting plate (12);
and the mounting rack (11) is provided with a lifting guide rod (13) corresponding to the limiting hole.
CN202023342395.3U 2020-12-30 2020-12-30 3D printing head structure of continuous carbon fiber reinforced thermosetting composite material Active CN214294489U (en)

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CN202023342395.3U CN214294489U (en) 2020-12-30 2020-12-30 3D printing head structure of continuous carbon fiber reinforced thermosetting composite material

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Application Number Priority Date Filing Date Title
CN202023342395.3U CN214294489U (en) 2020-12-30 2020-12-30 3D printing head structure of continuous carbon fiber reinforced thermosetting composite material

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114193768A (en) * 2021-12-13 2022-03-18 武汉理工大学 Multi-filament forming device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114193768A (en) * 2021-12-13 2022-03-18 武汉理工大学 Multi-filament forming device

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