CN212331342U - Ultrasonic wave assisted building 3D printing extrusion device - Google Patents

Abstract

The utility model discloses an ultrasonic wave is supplementary to be built 3D and is printed extrusion device, print the nozzle including 3D, 3D prints and installs the ultrasonic wave oscillator on the outer wall of nozzle, the last transducer of ultrasonic wave oscillator with 3D prints the outer wall fixed connection of nozzle. The utility model discloses an add the ultrasonic vibrator on building 3D printing apparatus extrusion nozzle, effectively solved the problem that exists among the prior art, increased the smoothness nature of building material blanking, reduced the layer and found roughness, increased the bonding strength between the layer.

Description

Ultrasonic wave assisted building 3D printing extrusion device

Technical Field

The utility model relates to a print extrusion device technical field, more specifically say, relate to an ultrasonic wave is assisted and is built 3D and print 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.

SUMMERY OF THE UTILITY MODEL

Therefore, an object of the utility model is to provide an ultrasonic wave is supplementary to be built 3D and is printed extrusion device, its concrete technical scheme as follows:

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.

The utility model discloses an add the ultrasonic vibrator on building 3D printing apparatus extrusion nozzle, effectively solved the problem that exists among the prior art, increased the smoothness nature of building material blanking, reduced the layer and found roughness, increased the bonding strength between the layer.

On the basis of the technical scheme, the utility model discloses still can make following improvement:

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.

Through adopting the technical scheme, the utility model discloses increased the ultrasonic wave oscillator on building 3D printing apparatus extrusion nozzle, the during operation, extrusion nozzle shell can be along with ultrasonic wave oscillator high-frequency vibration, and it is obvious that the finished product layer structure that has finally effectively solved current building 3D printing apparatus and has printed, and the layer stands on the surface roughly, the poor problem of bonding strength between the layer.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be 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 view of the whole structure of the straight tube type blanking passage structure of the present invention.

Fig. 2 is a top view of the straight tube type blanking passage structure of the present invention.

Fig. 3 is a left side view of the straight tube type blanking passage structure of the present invention.

Fig. 4 is an overall structure diagram of the L-shaped blanking passage structure of the present invention.

Fig. 5 is a top view of the present invention with an L-shaped blanking channel structure.

The attached figure of fig. 6 is a left side view of the utility model of L-shaped blanking passage structure.

Figure 7 the attached drawing is L type blanking access structure the utility model provides an ultrasonic vibrator prints the connection structure sketch map of extrusion nozzle outer wall with 3D.

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 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 exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present 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", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not 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 limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, 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 meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. 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 wave assisted building 3D printing extrusion device of the embodiment of the invention is described in detail according to figures 1-8.

Example 1:

as shown in fig. 1-3, the embodiment of the utility model discloses supplementary building 3D of ultrasonic wave prints extrusion device, print the extrusion nozzle including 3D, this 3D prints the extrusion nozzle and includes feed inlet 2, blanking passageway 3 and extrusion opening 4 again, wherein, as shown in fig. 1, blanking passageway 3's structure is the straight tube type, what the arrow point in blanking passageway 3 indicates the direction representative is the 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 utility model discloses supplementary building 3D of ultrasonic wave prints extrusion device, print the nozzle including 3D, this 3D prints the nozzle and includes feed inlet 2, blanking passageway 3 and extrusion mouth 4 again, wherein, as shown in fig. 4, the structure of blanking passageway 3 is the L type, what the arrow point in blanking passageway 3 direction represented is 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 utility model discloses a theory of operation does:

the utility model discloses install ultrasonic vibrator 1 that can produce ultrasonic vibration on the extrusion nozzle outer wall wallboard 6 of building 3D printing apparatus, during operation, extrusion nozzle outer wall wallboard 6 will follow along with high-frequency vibration, will produce a layer of extremely thin air film between extrusion nozzle inner wall and the building concrete, the building concrete will be like having smeared a layer of air lubricating oil on the surface and smooth outflow, the surface roughness will be 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. An ultrasonic assisted construction 3D printing extrusion device according to any one of claims 1 to 6, characterized in that the ultrasonic vibrator (1) is capable of generating ultrasonic vibration with a frequency of 20-120KHz and an amplitude of 1-100 μm.

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