CN111605030A - Ultrasonic wave assisted building 3D printing extrusion device - Google Patents
Ultrasonic wave assisted building 3D printing extrusion device Download PDFInfo
- Publication number
- CN111605030A CN111605030A CN202010485936.3A CN202010485936A CN111605030A CN 111605030 A CN111605030 A CN 111605030A CN 202010485936 A CN202010485936 A CN 202010485936A CN 111605030 A CN111605030 A CN 111605030A
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- CN
- China
- Prior art keywords
- ultrasonic
- printing
- wall
- nozzle
- printing extrusion
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- Pending
Links
- 238000001125 extrusion Methods 0.000 title claims abstract description 53
- 238000010146 3D printing Methods 0.000 title claims abstract description 44
- 238000003466 welding Methods 0.000 claims description 4
- 230000003746 surface roughness Effects 0.000 abstract description 3
- 239000004566 building material Substances 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 9
- 238000010586 diagram Methods 0.000 description 3
- 238000007639 printing Methods 0.000 description 3
- 239000002657 fibrous material Substances 0.000 description 2
- -1 but during printing Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
- B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
-
- 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
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Ceramic Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
Abstract
The invention discloses an ultrasonic-assisted building 3D printing extrusion device which comprises a 3D printing extrusion nozzle, wherein an ultrasonic vibrator is installed on the outer wall of the 3D printing extrusion nozzle, and a transducer on the ultrasonic vibrator is fixedly connected with the outer wall of the 3D printing extrusion nozzle. According to the invention, the ultrasonic vibrator is additionally arranged on the extrusion nozzle of the building 3D printing equipment, so that the problems in the prior art are effectively solved, the smoothness of building material blanking is improved, the layer-standing surface roughness is reduced, and the bonding strength between layers is improved.
Description
Technical Field
The invention relates to the technical field of printing extrusion devices, in particular to an ultrasonic-assisted building 3D printing extrusion device.
Background
The 3D printing equipment for the current buildings is various in variety, but always gives a feeling that the printed finished product has an obvious layer structure and rough standing surface, and the bonding strength between layers is questioned.
The reason is that the original extrusion nozzle is only designed into a straight-through pipeline or a funnel pipeline, the inner wall of the pipeline and the building concrete material have irregular adhesion and friction, and the outer surface of the pipeline is rough when the material is extruded, so that the external appearance after printing is poor. In addition, in order to increase the strength and toughness of the building concrete material, fiber materials are mixed in the material, but during printing, layers are simply stacked and combined, and fibers cannot penetrate between the layers, so that the bonding strength between the layers is far smaller than the strength of the building concrete material, and the overall structural strength of the 3D printing finished product of the building is greatly reduced.
Therefore, how to effectively solve the above technical problems of the existing architectural 3D printing and extruding device becomes a problem that needs to be mainly overcome by those skilled in the art.
Disclosure of Invention
Therefore, the invention aims to provide an ultrasonic-assisted building 3D printing extrusion device, which has the following specific technical scheme:
the utility model provides an ultrasonic wave is assisted to construct 3D and is printed extrusion device, includes that 3D prints the nozzle, 3D prints and installs the ultrasonic vibrator on the outer wall of nozzle, the last transducer of ultrasonic vibrator with 3D prints the outer wall fixed connection of nozzle.
According to the invention, the ultrasonic vibrator is additionally arranged on the extrusion nozzle of the building 3D printing equipment, so that the problems in the prior art are effectively solved, the smoothness of building material blanking is improved, the layer-standing surface roughness is reduced, and the bonding strength between layers is improved.
On the basis of the technical scheme, the invention can be improved as follows:
preferably, a connecting stud is vertically fixed on an outer wall panel of the 3D printing extrusion nozzle, an inner threaded hole matched with the connecting stud is formed in the transducer, and the transducer is matched with the outer wall panel of the 3D printing extrusion nozzle to be screwed and fixed through the connecting stud and the inner threaded hole.
Adopt the connected mode in connecting stud and internal thread hole to make things convenient for ultrasonic vibrator and 3D to print dismantled and assembled of structure between the nozzle, ultrasonic vibrator and 3D print the nozzle like this and just separately produce, treat when using carry on the aggregate erection again can, simultaneously, this structural design has also made things convenient for the later stage to examine and repair and change ultrasonic vibrator and 3D printing nozzle.
Preferably, the connecting stud is fixedly connected to the outer wall plate of the 3D printing extrusion nozzle in a rivet welding mode.
Preferably, the 3D printing extrusion nozzle comprises a feed inlet, a blanking channel and an extrusion opening, wherein the blanking channel is divided into a straight tube type and an L type according to different structures.
Preferably, the ultrasonic vibrator is arranged on the outer wall of any channel section of the straight pipe type blanking channel.
Preferably, the ultrasonic vibrator is arranged on the outer wall of the channel section of the L-shaped blanking channel provided with the extrusion port, so that the building concrete material can smoothly flow out of the extrusion port.
Preferably, the ultrasonic vibrator is capable of generating ultrasonic vibration having a frequency of 20 to 120KHz and an amplitude of 1 to 100 μm.
By adopting the technical scheme, the ultrasonic vibrator is additionally arranged on the extrusion nozzle of the building 3D printing equipment, and the shell of the extrusion nozzle vibrates with the ultrasonic vibrator in high frequency during working, so that the problems that the structure of a finished product layer printed by the existing building 3D printing equipment is obvious, the surface of a layer is rough, and the bonding strength between layers is poor are effectively solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic diagram of the overall structure of the straight tube type blanking channel structure.
FIG. 2 is a top view of the straight tube type blanking channel structure of the present invention.
FIG. 3 is a left side view of the straight tube type blanking channel structure of the present invention.
FIG. 4 is a schematic diagram of the overall structure of the L-shaped blanking channel structure.
FIG. 5 is a top view of the L-shaped blanking channel structure of the present invention.
FIG. 6 is a left side view of the L-shaped blanking channel structure of the present invention.
Fig. 7 is a schematic diagram of a connection structure of an ultrasonic vibrator and an outer wall of a 3D printing extrusion nozzle in the L-shaped blanking channel structure.
Fig. 8 is an enlarged schematic view of a portion a of fig. 7.
Wherein, in the figure,
1-ultrasonic vibrator, 2-feed inlet, 3-blanking channel, 4-extrusion outlet, 5-connecting stud and 6-outer wall panel.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The ultrasonic-assisted architectural 3D printing extrusion apparatus of an embodiment of the present invention is described in detail below with reference to fig. 1-8.
Example 1:
as shown in fig. 1-3, an embodiment of the present invention discloses an ultrasonic-assisted building 3D printing extrusion apparatus, which includes a 3D printing extrusion nozzle, and the 3D printing extrusion nozzle includes a feed port 2, a blanking channel 3 and an extrusion port 4, wherein as shown in fig. 1, the blanking channel 3 is a straight tube type, and a direction indicated by an arrow in the blanking channel 3 represents a blanking direction.
The outer wall of the 3D printing extrusion nozzle is provided with an ultrasonic vibrator 1, a transducer on the ultrasonic vibrator 1 is fixedly connected with the outer wall of the 3D printing extrusion nozzle, and the outer wall is the outer wall of any channel section of the straight tube type blanking channel 3.
Specifically, a connecting stud 5 is vertically fixed on an outer wall panel 6 of the straight tube type blanking channel 3 in a rivet welding mode, an inner threaded hole matched with the connecting stud 5 is formed in the transducer, and the transducer and the outer wall panel 6 of the 3D printing extrusion nozzle are matched and screwed and fixed with the inner threaded hole through the connecting stud 5.
Example 2:
as shown in fig. 4-6, the embodiment of the invention discloses an ultrasonic-assisted building 3D printing extrusion device, which comprises a 3D printing extrusion nozzle, wherein the 3D printing extrusion nozzle further comprises a feed inlet 2, a blanking channel 3 and an extrusion port 4, wherein as shown in fig. 4, the blanking channel 3 is L-shaped, and the direction indicated by an arrow in the blanking channel 3 represents the blanking direction.
Install ultrasonic vibrator 1 on the outer wall that 3D printed the extrusion nozzle, the outer wall fixed connection of transducer and 3D printing extrusion nozzle on the ultrasonic vibrator 1, this outer wall is being equipped with of L type blanking passageway 3 and extrudes the passageway section outer wall of mouth 4.
Specifically, as shown in fig. 7 and 8, a connecting stud 5 is vertically fixed on an outer wall panel 6 of the L-shaped blanking channel 3 in a rivet welding manner, an internal thread hole matched with the connecting stud 5 is formed in the transducer, and the transducer and the outer wall panel 6 of the 3D printing extrusion nozzle are matched and screwed with and fixed to the internal thread hole through the connecting stud 5.
Further, the ultrasonic vibrators 1 of the above embodiments 1 and 2 are each capable of generating ultrasonic vibrations having a frequency of 20 to 120KHz and an amplitude of 1 to 100. mu.m.
The working principle of the invention is as follows:
the ultrasonic vibrator 1 capable of generating ultrasonic vibration is arranged on the wall plate 6 of the outer wall of the extrusion nozzle of the 3D printing equipment for the building, when the ultrasonic vibrator works, the wall plate 6 of the outer wall of the extrusion nozzle vibrates along with the ultrasonic vibrator in high frequency, a layer of extremely thin air film is generated between the inner wall of the extrusion nozzle and building concrete, the building concrete can smoothly flow out like a layer of air lubricating oil smeared on the surface, and the surface roughness is greatly improved; in addition, as part of the energy of the ultrasonic vibration is transferred to the building concrete material, the fiber material in the building concrete material is partially embedded into the lower layer material under the high-frequency vibration, and the bonding strength between layers is greatly improved.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. The utility model provides an ultrasonic wave is supplementary to be built 3D and is printed extrusion device, includes that 3D prints the nozzle, its characterized in that, 3D prints and installs ultrasonic vibrator (1) on the outer wall of nozzle, the transducer on ultrasonic vibrator (1) with 3D prints the outer wall fixed connection of nozzle.
2. The ultrasonic-assisted building 3D printing extrusion device according to claim 1, wherein a connecting stud (5) is vertically fixed on an outer wall panel (6) of the 3D printing extrusion nozzle, an internal thread hole matched with the connecting stud (5) is formed in the transducer, and the transducer and the outer wall panel (6) of the 3D printing extrusion nozzle are matched, screwed and fixed with the internal thread hole through the connecting stud (5).
3. The ultrasonic-assisted building 3D printing extrusion device according to claim 2, wherein the connecting stud (5) is fixedly connected to the outer wall panel (6) of the 3D printing extrusion nozzle by rivet welding.
4. The ultrasonic-assisted building 3D printing extrusion device according to claim 1, wherein the 3D printing extrusion nozzle comprises a feed port (2), a blanking channel (3) and an extrusion port (4), wherein the blanking channel (3) is divided into a straight pipe type and an L type according to different structures.
5. The ultrasonic-assisted building 3D printing extrusion device according to claim 4, wherein the ultrasonic vibrator (1) is installed on any channel section outer wall of the straight tube type blanking channel (3).
6. The ultrasonic-assisted building 3D printing and extruding device according to claim 4, wherein the ultrasonic vibrator (1) is installed on the outer wall of a channel section of the L-shaped blanking channel (3) provided with the extruding opening (4).
7. The ultrasonic-assisted building 3D printing extrusion device according to claim 1, wherein the ultrasonic vibrator (1) can generate ultrasonic vibration with frequency of 20-120KHz and amplitude of 1-100 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010485936.3A CN111605030A (en) | 2020-06-01 | 2020-06-01 | Ultrasonic wave assisted building 3D printing extrusion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010485936.3A CN111605030A (en) | 2020-06-01 | 2020-06-01 | Ultrasonic wave assisted building 3D printing extrusion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111605030A true CN111605030A (en) | 2020-09-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010485936.3A Pending CN111605030A (en) | 2020-06-01 | 2020-06-01 | Ultrasonic wave assisted building 3D printing extrusion device |
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| CN (1) | CN111605030A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112171847A (en) * | 2020-09-10 | 2021-01-05 | 华中科技大学 | Ultrasonic-assisted 3D printing concrete nozzle device and extrusion system |
-
2020
- 2020-06-01 CN CN202010485936.3A patent/CN111605030A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112171847A (en) * | 2020-09-10 | 2021-01-05 | 华中科技大学 | Ultrasonic-assisted 3D printing concrete nozzle device and extrusion system |
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