CN110883901B - 3D printing spray head capable of simultaneously stirring and extruding materials and continuously and spirally feeding wires - Google Patents
3D printing spray head capable of simultaneously stirring and extruding materials and continuously and spirally feeding wires Download PDFInfo
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- CN110883901B CN110883901B CN201911187950.9A CN201911187950A CN110883901B CN 110883901 B CN110883901 B CN 110883901B CN 201911187950 A CN201911187950 A CN 201911187950A CN 110883901 B CN110883901 B CN 110883901B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/001—Rapid manufacturing of 3D objects by additive depositing, agglomerating or laminating of material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
Abstract
The invention discloses a 3D printing nozzle which can stir and extrude materials simultaneously and continuously and spirally send wires, comprising: the device comprises a motor, a cylinder, a rotary drum, an upper transmission shaft pipe, a lower transmission shaft pipe, a material homogenizing device, a troweling nozzle and a support frame, wherein the upper transmission shaft pipe and the lower transmission shaft pipe are arranged on the central axis of the rotary drum; according to the invention, dry powder is mixed with liquid and extruded after entering the spray head, so that the use amount of the retarder of the traditional 3D concrete can be greatly reduced, and the improvement of various performance indexes of the 3D concrete is facilitated; the requirement for the area of a concrete 3D printing field is reduced, and the energy is saved and the environment is protected; the liquid inlet port is provided with a strong flow and slow flow interface, and strong water flow can be used for flushing after the use is finished; the parts adopt module components, so that the maintenance and the replacement are convenient; the outlet spatula nozzle rotates clockwise to realize the function of smearing the profile side wall and obtain a smooth side surface. The spiral wound steel wire (or filament) is arranged in the invention, so that the strength and toughness of the 3D concrete material are effectively enhanced, and the crack resistance of the member is obviously improved.
Description
Technical Field
The invention relates to the field of 3D printing devices, in particular to a 3D printing nozzle which can simultaneously stir and extrude materials and continuously and spirally feed wires, and the 3D printing nozzle is a device which integrates dry material feeding, water mixing, stirring, extruding, continuous spiral steel wires (or continuous filament wires) containing and appearance profile control of a concrete 3D printer.
Background
At present, traditional concrete 3D prints, and what adopt is that the wet material of concrete after the stirring beats printer head of beating of 3D printer is sent through the force pump to the pipeline, beats printer head again and sets up extrusion device and extrude the realization and print the process. The form of adding the steel wire in the concrete 3D printing process is a straight drawing type, and the steel wire is input in front of the printing advancing by the wire feeder by virtue of the rigidity of the steel wire. The traditional concrete 3D printing process, equipment and wire feeding mode are shown in figures 1-3.
Concrete stirring and extrusion in the traditional 3D printing equipment need pipeline conveying, so that the printing material often needs longer setting time, and a retarder needs to be added during batching; the printed concrete material is not easy to be excessively viscous, so that the interlayer bonding strength is not high; in addition, the amount of ink used needs to be calculated in advance before each printing, and continuous printing cannot be realized. And after printing is finished, the workload of cleaning the pumping pipeline and the receiver is large. Meanwhile, the printed product has a large surface roughness due to the multilayer accumulation.
Due to the existence of the conveying pipeline, the coagulation time of the mixture in the design process is forced to be prolonged, and the advantage of rapid manufacturing of 3D printing cannot be really exerted.
In order to enhance the strength of the printed concrete, the steel wire is conveyed into the printing device in a straight dragging mode in the advancing direction of printing. The steel wire and the concrete are linearly combined at the nozzle, the contact time is short, the infiltration is insufficient, residual gas is left, and the microcrack is easy to generate. The anisotropy of performance indexes such as the strength of the printed component is obvious. Meanwhile, because long fiber yarns are soft, no effective method for printing by adding concrete exists at present.
Disclosure of Invention
The invention aims to provide a 3D printing nozzle which can simultaneously stir and extrude materials and continuously and spirally feed wires, wherein an equipment pipeline is removed, and stirring and extruding of printing materials are simultaneously carried out in the nozzle, so that the working efficiency is greatly improved, and the 3D printing is really and quickly manufactured. Meanwhile, the steel wire (or the long fiber) is conveyed to the nozzle through the center of the nozzle, and the nozzle has a rotating function, so that the steel wire (or the long fiber) can generate a spiral shape at the nozzle and is extruded simultaneously with the materials. According to the number of the steel wires (or the long fibers), a double-helix or multi-helix form can be generated, and the bonding area between the steel wires (or the long fibers) and the concrete is increased. The invention can realize the following functions:
(1) dry powder input, water adding, stirring and extrusion are integrated, so that high-efficiency printing is realized;
(2) the transmission part is isolated from the stirring part, and is flushed by large water flow after being used, so that the device is convenient and quick;
(3) the components are modularized, and the assembly and disassembly are convenient;
(4) the outlet spatula nozzle has the spatula function, the cylinder wall rotates clockwise, and the printing software is combined, so that the formed side wall can be wiped, and the polishing degree of the side wall is improved;
(5) the outlet spatula tip part can be quickly replaced and has various shapes, and the change of different calibers can be realized;
(6) the steel wire (or long fiber) is output through the inner cavity of the nozzle, a double-helix or multi-helix structure is generated by the rotation of the cylinder wall, and is fully compacted and extruded with the concrete under the driving of the extrusion force in the nozzle, so that the strength, toughness, crack resistance and the like of the 3D printed concrete are improved, and simultaneously, all performance indexes of the component tend to be isotropic.
The technical scheme of the invention is as follows: material stirring and extrusion go on simultaneously and continuous spiral send 3D of silk to print shower nozzle, include: the device comprises a motor 100, a cylinder 200, a rotary drum 300, an upper transmission shaft pipe 400 and a lower transmission shaft pipe 500 which are arranged on the central axis of the rotary drum 300, a material homogenizing device 600, a spatula nozzle 700 and a support frame 800;
the motor 100 is arranged on the support frame 800, an output shaft of the motor 100 is connected with a transmission gear set 401, the transmission gear set 401 is fixedly connected with an upper transmission shaft tube 400, and the motor 100 drives the upper transmission shaft tube 400 to rotate anticlockwise through the transmission gear set 401; a planetary gear set 402 is fixedly connected outside the upper transmission shaft tube 400, the planetary gear set 402 comprises a driving planetary gear 4021, a driven planetary gear set 4022 and a planetary gear sleeve 4023 which are sequentially meshed, the driving planetary gear 4021 is fixedly connected outside the upper transmission shaft tube 400, the planetary gear sleeve 4023 is fixedly connected on the rotary drum 300, the upper transmission shaft tube 400 drives the driving planetary gear 4021 to rotate anticlockwise in the same direction, and further drives the driven planetary gear set 4022, the planetary gear sleeve 4023 and the rotary drum 300 to rotate clockwise in the opposite direction of the driving direction of the motor 100; the lower transmission shaft tube 500 is fixedly connected to the inner wall of the bottom end of the rotary drum 300 through a connecting rod I503; the upper transmission shaft tube 400 is provided with a stirring blade 405, and the stirring blade 405 can stir the materials in the rotary drum 300 through the reverse rotation between the rotary drum 300 and the upper transmission shaft tube 400;
the air cylinder 200 is connected with the upper transmission shaft tube 400 through the air cylinder coupler 201 and drives the upper transmission shaft tube 400 to move up and down, the bottom end of the upper transmission shaft tube 400 is fixedly connected with the upper section coupler 406, the top end of the lower transmission shaft tube 500 is fixedly connected with the lower section coupler 501, the lower transmission shaft tube 500 is fixedly connected with the extrusion blade 502, the bottom end of the rotary drum 300 is fixedly connected with the spatula tip 700, when the upper transmission shaft tube 400 moves down, the upper section coupler 406 is connected with the lower section coupler 501, the upper transmission shaft tube 400 drives the lower transmission shaft tube 500 to rotate anticlockwise in the same direction, the reverse rotation between the extrusion blade 502 and the rotary drum 300 is realized, so that the stirred material in the rotary drum 300 is extruded from the spatula tip 700, when the upper transmission shaft tube 400 moves up, the upper transmission shaft tube 400 is disconnected with the lower transmission shaft tube 500, the reverse rotation between the extrusion blade 502 and the rotary drum, is blocked in the rotating drum 300 to realize full stirring.
Further, the spray head further comprises a U-shaped partition 403 and a baffle plate 404, the planetary gear set 402 is arranged in the U-shaped partition 403, and the baffle plate 404 is arranged above the rotary drum 300 and is parallel to the chassis of the U-shaped partition 403; three through holes which enable materials to pass through and enter the rotary drum 300 are formed in the chassis of the U-shaped partition plate 403 and the material baffle 404, namely a dry material inlet 4041, a liquid material inlet I4042 and a liquid material inlet II 4043, the dry material inlet 4041 is connected with a material outlet of the material homogenizing device 600, the liquid material inlet I4042 and the liquid material inlet II 4043 are connected with a liquid feeding pipeline to achieve liquid feeding, and the liquid feeding pipeline is modularly installed on the support frame 800.
Further, the spray head further comprises a wire feeding system, wherein the wire feeding system comprises a wire 900, a wire feeder 901, a wire feeder bracket 902, an inner tube 903, an inner tube end 904, a fixed winding throat 905 and a rotary winding throat 906; a connecting rod II 504 is fixedly connected between the rotary drum 300 and the spatula nozzle 700, the inner pipe 903 is fixedly connected to the wire feeder bracket 902, does not rotate, passes through the upper transmission shaft pipe 400 and the lower transmission shaft pipe 500, is hinged with an inner pipe end 904, and is stopped at the connecting rod II 504; the fixed winding throat 905 is fixedly connected with the inner cavity of the end 904 of the inner pipe, and the rotary winding throat 906 is fixedly connected with the center of the connecting rod II 504; by the rotation of the rotary drum 300, the wire 900 passes through the wire feeder 901, the inner tube 903, the inner tube end 904, the fixed winding throat 905, and the rotary winding throat 906 to generate spiral winding, and is extruded out through the spatula tip 700 together with the material.
Further, dry materials and liquid materials are contained in the rotary drum 300, the rotary drum 300 is divided into an upper rotary drum 301, a display rotary drum 302 and a bottom rotary drum 303 from top to bottom, and the display rotary drum 302 is transparent so that the mixing state of the internal materials can be observed conveniently.
Further, the filament 900 is a steel wire or a long fiber.
Further, the nozzle further comprises a frame connecting plate 810 and a nozzle supporting seat 811, the nozzle supporting seat 811 is fixedly connected between the rotary drum 300 and the frame connecting plate 810, and the frame connecting plate 810 is fixedly connected with the supporting frame 800.
The invention has the following beneficial effects:
according to the invention, dry powder is mixed with liquid and extruded after entering the spray head, so that the consumption of the retarder of the traditional 3D concrete can be greatly reduced, the coagulation speed of the 3D concrete is accelerated, and the improvement of various performance indexes of the 3D concrete is facilitated; the requirement for the area of a concrete 3D printing field is reduced, and the energy is saved and the environment is protected; the liquid inlet port is provided with a strong flow and slow flow interface, and strong water flow can be used for flushing after the use is finished; the parts adopt module components, so that the maintenance and the replacement are convenient; the outlet spatula nozzle rotates clockwise, and can be combined with programming software to realize the function of smearing the profile side wall and obtain a smooth side surface.
The spiral wound steel wire (or filament) is arranged in the invention, so that the strength and toughness of the 3D concrete material are effectively enhanced, and the crack resistance of the member is obviously improved. The invention is an effective tool for developing novel 3D concrete in universities, scientific research institutions and enterprises.
The invention is combined with a 3D printer body and software application, and is also suitable for quickly printing concrete members and 3D models, displaying sand tables, casting sand molds, artware rough blanks, part of food models and the like.
Drawings
Fig. 1 is a flow chart of a conventional concrete 3D printing process;
fig. 2 is a structural view of a conventional concrete 3D printing apparatus;
FIG. 3 is a schematic diagram of a conventional 3D printing wire feeding mode for concrete;
FIG. 4 is a 3D concrete printing flowchart according to the present invention;
FIG. 5 is a schematic structural view of the present invention;
FIG. 6 is a schematic diagram of the structure of the present invention for producing double spiral winding;
FIG. 7 is a front view of a fixed winding throat of the present invention;
FIG. 8 is a side view of a fixed winding throat of the present invention;
FIG. 9 is a front view of the rotary winding throat of the present invention;
FIG. 10 is a side view of the spinning winding throat of the present invention;
FIG. 11 is a schematic diagram of the planetary gear set and feed inlet portion of the present invention;
in the figure: 100. a motor; 200. a cylinder; 300. a rotating drum; 400. an upper driveshaft tube; 500. a lower driveshaft tube; 600. a material homogenizing device; 700. a spatula tip; 800. a support frame; 201. a cylinder coupling; 301. an upper end drum; 302. a display reel; 303. a bottom end drum; 401. a drive gear set; 402. a planetary gear set; 403. a U-shaped partition plate; 404. a striker plate; 405. a stirring blade; 406. an upper section coupling; 501. a lower section coupler; 502. extruding a blade; 503. a connecting rod I; 504. a connecting rod II; 810. a frame connecting plate; 811. a nozzle supporting seat; 900. steel wire (or long fiber); 901. a wire feeder; 902. a wire feeder support; 903. an inner tube; 904. an inner tube end; 905. fixing the winding laryngeal prominence; 906. rotating the winding throat; 4041. a dry material inlet; 4042. a liquid material inlet I; 4043. a liquid material inlet II; 4021. a drive planet gear; 4022. a driven planetary gear set; 4023. and a planetary gear sleeve.
Detailed Description
The invention is described in detail below with reference to the figures and examples.
As shown in fig. 4-11, a 3D printing nozzle capable of simultaneously stirring and extruding materials and continuously and spirally feeding wires comprises: the device comprises a motor 100, a cylinder 200, a rotary drum 300, an upper transmission shaft pipe 400 and a lower transmission shaft pipe 500 which are arranged on the central axis of the rotary drum 300, a material homogenizing device 600, a spatula nozzle 700 and a support frame 800;
the motor 100 is arranged on the support frame 800, an output shaft of the motor 100 is connected with a transmission gear set 401, the transmission gear set 401 is fixedly connected with an upper transmission shaft tube 400, and the motor 100 drives the upper transmission shaft tube 400 to rotate anticlockwise through the transmission gear set 401; a planetary gear set 402 is fixedly connected outside the upper transmission shaft tube 400, the planetary gear set 402 comprises a driving planetary gear 4021, a driven planetary gear set 4022 and a planetary gear sleeve 4023 which are sequentially meshed, the driving planetary gear 4021 is fixedly connected outside the upper transmission shaft tube 400, the planetary gear sleeve 4023 is fixedly connected on the rotary drum 300, the upper transmission shaft tube 400 drives the driving planetary gear 4021 to rotate anticlockwise in the same direction, and then the driven planetary gear set 4022, the planetary gear sleeve 4023 and the rotary drum 300 are driven to rotate clockwise in the opposite direction of the driving direction of the motor 100; the rotary drum 300 contains dry materials and liquid materials, the rotary drum 300 is divided into an upper rotary drum 301, a display rotary drum 302 and a bottom rotary drum 303 from top to bottom, wherein the display rotary drum 302 is transparent and is convenient for observing the mixing state of the internal materials; the lower transmission shaft tube 500 is fixedly connected to the inner wall of the bottom end of the rotary drum 300 through a connecting rod I503; the upper transmission shaft tube 400 is provided with a stirring blade 405, and the stirring blade 405 can stir the materials in the rotary drum 300 through the reverse rotation between the rotary drum 300 and the upper transmission shaft tube 400;
the air cylinder 200 is connected with the upper transmission shaft tube 400 through the air cylinder coupler 201 and drives the upper transmission shaft tube 400 to move up and down, the bottom end of the upper transmission shaft tube 400 is fixedly connected with an upper section coupler 406, the top end of the lower transmission shaft tube 500 is fixedly connected with a lower section coupler 501, the lower transmission shaft tube 500 is fixedly connected with an extrusion blade 502, the bottom end of the rotary drum 300 is fixedly connected with a spatula nozzle 700, when the upper transmission shaft tube 400 moves down, the upper section coupler 406 is connected with the lower section coupler 501, the upper transmission shaft tube 400 drives the lower transmission shaft tube 500 to rotate anticlockwise in the same direction, the reverse rotation between the extrusion blade 502 and the rotary drum 300 is realized, so that the stirred material in the rotary drum 300 is extruded from the spatula nozzle 700, when the upper transmission shaft tube 400 moves up, the upper transmission shaft tube 400 is disconnected with the lower transmission shaft tube 500, the extrusion blade 502 stops the reverse rotation with the rotary drum 300, and the full stirring is realized.
The sprayer further comprises a U-shaped partition plate 403 and a material baffle plate 404, wherein the planetary gear set 402 is arranged in the U-shaped partition plate 403, and the material baffle plate 404 is arranged above the rotary drum 300 and is parallel to a chassis of the U-shaped partition plate 403; three through holes which enable the materials to pass through and enter the rotary drum 300 are arranged on the chassis of the U-shaped partition plate 403 and the material baffle 404, namely a dry material inlet 4041, a liquid material inlet I4042 and a liquid material inlet II 4043, as shown in figure 7; the dry material inlet 4041 is connected with the material outlet of the homogenizing device 600, the liquid material inlet I4042 and the liquid material inlet II 4043 are connected with the liquid feeding pipeline to realize liquid feeding, and the liquid feeding pipeline is modularly arranged on the supporting frame 800.
The spray head also comprises a wire feeding system, wherein the wire feeding system comprises a wire 900 (which is a steel wire or a long fiber), a wire feeder 901, a wire feeder bracket 902, an inner tube 903, an inner tube end 904, a fixed winding throat 905 and a rotary winding throat 906; a connecting rod II 504 is fixedly connected between the rotary drum 300 and the spatula nozzle 700, the inner pipe 903 is fixedly connected to the wire feeder bracket 902, does not rotate, passes through the upper transmission shaft pipe 400 and the lower transmission shaft pipe 500, is hinged with an inner pipe end 904, and is stopped at the connecting rod II 504; the fixed winding throat 905 is fixedly connected with the inner cavity of the end 904 of the inner pipe, and the rotary winding throat 906 is fixedly connected with the center of the connecting rod II 504; by the rotation of the rotary drum 300, the wire 900 passes through the wire feeder 901, the inner tube 903, the inner tube end 904, the fixed winding throat 905, and the rotary winding throat 906 to generate spiral winding, and is extruded out through the spatula tip 700 together with the material. The fixed winding throat 905 serves to guide the steel wire or filament, and the rotating winding throat 906 serves to wind the steel wire or filament.
The sprayer further comprises a rack connecting plate 810 and a sprayer supporting seat 811, the sprayer supporting seat 811 is fixedly connected between the rotary drum 300 and the rack connecting plate 810, and the rack connecting plate 810 is fixedly connected with the supporting frame 800.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (4)
1. Material stirring and extrusion go on simultaneously and continuous spiral send 3D of silk to print shower nozzle, its characterized in that includes: the device comprises a motor (100), a cylinder (200), a rotary drum (300), an upper transmission shaft tube (400) and a lower transmission shaft tube (500) which are arranged on the central axis of the rotary drum (300), a material homogenizing device (600), a spatula nozzle (700) and a support frame (800);
the motor (100) is arranged on the support frame (800), an output shaft of the motor (100) is connected with a transmission gear set (401), an upper transmission shaft tube (400) is fixedly connected to the transmission gear set (401), and the motor (100) drives the upper transmission shaft tube (400) to rotate through the transmission gear set (401); the driving planetary gear set (4021) is fixedly connected outside the upper transmission shaft tube (400), the driving planetary gear set (402) comprises a driving planetary gear (4021), a driven planetary gear set (4022) and a planetary gear sleeve (4023) which are sequentially meshed, the driving planetary gear (4021) is fixedly connected outside the upper transmission shaft tube (400), the planetary gear sleeve (4023) is fixedly connected on the revolving drum (300), and the upper transmission shaft tube (400) drives the driving planetary gear (4021) to rotate in the same direction so as to drive the driven planetary gear set (4022), the planetary gear sleeve (4023) and the revolving drum (300) to reversely rotate with the motor (100) in the driving direction; the lower transmission shaft tube (500) is fixedly connected to the inner wall of the bottom end of the rotary drum (300) through a connecting rod I (503); the upper transmission shaft pipe (400) is provided with a stirring blade (405), and the stirring blade (405) can stir the materials in the rotary drum (300) through the reverse rotation between the rotary drum (300) and the upper transmission shaft pipe (400);
the cylinder (200) is connected with the upper transmission shaft tube (400) through the cylinder coupler (201) and drives the upper transmission shaft tube to move up and down, the bottom end of the upper transmission shaft tube (400) is fixedly connected with an upper section coupler (406), the top end of the lower transmission shaft tube (500) is fixedly connected with a lower section coupler (501), the lower transmission shaft tube (500) is fixedly connected with an extrusion blade (502), the bottom end of the rotary tube (300) is fixedly connected with a spatula nozzle (700), when the upper transmission shaft tube (400) moves downwards, the upper section coupler (406) is connected with the lower section coupler (501), the upper transmission shaft tube (400) drives the lower transmission shaft tube (500) to rotate in the same direction, the reverse rotation between the extrusion blade (502) and the rotary tube (300) is realized, so that the stirred material in the rotary tube (300) is extruded from the spatula nozzle (700), and when the upper transmission shaft tube (400) moves upwards, the upper transmission shaft tube (400) is disconnected with the lower transmission shaft, the extrusion blade (502) stops rotating reversely with the rotary drum (300) to stop the extrusion of the materials, and the materials are blocked in the rotary drum (300) to realize full stirring;
the spray head further comprises a wire feeding system, wherein the wire feeding system comprises a wire (900), a wire feeder (901), a wire feeder support (902), an inner pipe (903), an inner pipe end head (904), a fixed winding throat (905) and a rotary winding throat (906); a connecting rod II (504) is fixedly connected between the rotary drum (300) and the spatula nozzle (700), the inner pipe (903) is fixedly connected to the wire feeder support (902) and does not rotate, passes through the upper transmission shaft pipe (400) and the lower transmission shaft pipe (500), is hinged with the end head (904) of the inner pipe and is stopped at the connecting rod II (504); the fixed winding throat (905) is fixedly connected with the inner cavity of the end (904) of the inner pipe, and the rotary winding throat (906) is fixedly connected with the center of the connecting rod II (504); by the rotation of the rotary drum (300), the wire (900) passes through a wire feeder (901), an inner pipe (903), an inner pipe end head (904), a fixed winding throat (905) and a rotary winding throat (906) to generate spiral winding, and is extruded out through a spatula nozzle (700) together with materials;
the wire is a steel wire.
2. The 3D printing nozzle capable of stirring and extruding materials simultaneously and continuously feeding materials spirally according to claim 1, characterized in that the nozzle further comprises a U-shaped partition plate (403) and a baffle plate (404), the planetary gear set (402) is arranged in the U-shaped partition plate (403), and the baffle plate (404) is arranged above the rotary drum (300) and is parallel to the chassis of the U-shaped partition plate (403); the U-shaped partition plate (403) is provided with a dry material inlet (4041), a liquid material inlet I (4042) and a liquid material inlet II (4043) which are three through holes for materials to pass through and enter the rotary drum (300) on the chassis and the striker plate (404), the dry material inlet (4041) is connected with a material outlet of the material homogenizing device (600), the liquid material inlet I (4042) and the liquid material inlet II (4043) are connected with a liquid feeding pipeline to realize liquid feeding, and the liquid feeding pipeline is modularly arranged on the support frame (800).
3. The 3D printing nozzle capable of stirring and extruding materials simultaneously and continuously feeding materials spirally according to claim 1, wherein the rotary drum (300) contains dry materials and liquid materials, the rotary drum (300) is divided into an upper rotary drum (301), a display rotary drum (302) and a bottom rotary drum (303) from top to bottom, and the display rotary drum (302) is transparent so as to be convenient for observing the mixing state of the materials inside.
4. The 3D printing nozzle for simultaneous material mixing and extrusion and continuous spiral wire feeding according to claim 1, wherein the nozzle further comprises a frame connecting plate (810) and a nozzle supporting seat (811), the nozzle supporting seat (811) is fixedly connected between the rotary drum (300) and the frame connecting plate (810), and the frame connecting plate (810) is fixedly connected with the supporting frame (800).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911187950.9A CN110883901B (en) | 2019-11-28 | 2019-11-28 | 3D printing spray head capable of simultaneously stirring and extruding materials and continuously and spirally feeding wires |
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| CN201911187950.9A CN110883901B (en) | 2019-11-28 | 2019-11-28 | 3D printing spray head capable of simultaneously stirring and extruding materials and continuously and spirally feeding wires |
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| CN110883901B true CN110883901B (en) | 2021-04-06 |
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| CN112476704A (en) * | 2020-11-06 | 2021-03-12 | 北京石油化工学院 | Fill out a silk concrete 3D and beat printer head |
| CN113145862B (en) * | 2021-03-11 | 2022-08-05 | 哈尔滨工业大学 | Alloy material additive manufacturing device and manufacturing method |
| CN113183278B (en) * | 2021-05-26 | 2022-04-15 | 大连学庆铭锋数控技术有限公司 | 3D printer interlayer reinforced composite material adding device and 3D printer nozzle |
| CN113338626B (en) * | 2021-06-16 | 2022-07-01 | 大连学庆铭锋数控技术有限公司 | Concrete injection device capable of simultaneously stirring, extruding and injecting materials |
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| TWI593547B (en) * | 2015-11-13 | 2017-08-01 | 財團法人工業技術研究院 | Three dimensional tissue printing device, three dimensional tissue printing method and artifical skin |
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| CN106313496A (en) * | 2016-08-18 | 2017-01-11 | 南京航空航天大学 | 3D printing method for continuous fibre-reinforced thermoplastic resin matrix composite material, and printing head |
| CN207954651U (en) * | 2018-01-11 | 2018-10-12 | 青岛黄海学院 | A kind of desktop grade 3D printer with novel wire feed mechanism |
| CN109366999A (en) * | 2018-12-20 | 2019-02-22 | 大连学庆铭锋数控技术有限公司 | A kind of 3D printing ejecting device of material stirring and extrusion while progress |
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