CN113751727A - 3D prints shower nozzle and 3D printing device - Google Patents
3D prints shower nozzle and 3D printing device Download PDFInfo
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- CN113751727A CN113751727A CN202110990803.6A CN202110990803A CN113751727A CN 113751727 A CN113751727 A CN 113751727A CN 202110990803 A CN202110990803 A CN 202110990803A CN 113751727 A CN113751727 A CN 113751727A
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- 238000010438 heat treatment Methods 0.000 claims abstract description 103
- 238000001125 extrusion Methods 0.000 claims abstract description 38
- 238000001816 cooling Methods 0.000 claims description 12
- 239000007921 spray Substances 0.000 claims description 7
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 abstract description 23
- 239000002184 metal Substances 0.000 abstract description 23
- 238000000034 method Methods 0.000 abstract description 8
- 238000009423 ventilation Methods 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 6
- 230000005674 electromagnetic induction Effects 0.000 abstract description 5
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 230000000903 blocking effect Effects 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 33
- 230000000694 effects Effects 0.000 description 10
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- 239000007789 gas Substances 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 238000007639 printing Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005672 electromagnetic field Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910001369 Brass Inorganic materials 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- 238000011144 upstream manufacturing Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/10—Formation of a green body
- B22F10/18—Formation of a green body by mixing binder with metal in filament form, e.g. fused filament fabrication [FFF]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
- B22F12/10—Auxiliary heating means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
- B22F12/50—Means for feeding of material, e.g. heads
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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
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
Abstract
The invention discloses a 3D printing nozzle and a 3D printing device, wherein the 3D printing nozzle comprises a nozzle body, a heating body and an air supply assembly, a heating cavity is arranged in the nozzle body, an extrusion port is formed in one end of the nozzle body, the extrusion port is connected with the heating cavity, the heating body is wound outside the nozzle body, the air supply assembly comprises an air vent, a ventilation cavity is formed in the air vent, and the ventilation cavity is communicated with the heating cavity; the 3D printing device comprises a 3D printing nozzle. According to the invention, the metal consumable is heated based on an electromagnetic induction heating mode, so that the metal consumable can be rapidly heated and melted, the heating efficiency is high, the ventilation piece can introduce air flow into the heating cavity, the melted consumable can be rapidly extruded from the extrusion port, the consumable is prevented from blocking the nozzle, in addition, the heat in the heating cavity is taken away in the air flow flowing process, the high temperature of the nozzle body and the heating body is reduced, and the service life of the 3D printing nozzle is prolonged.
Description
Technical Field
The invention relates to the technical field of 3D printing, in particular to a 3D printing nozzle taking metal as a consumable and a 3D printing device.
Background
In the related technology, the material is heated and melted by adopting a resistance heating method, the heating efficiency of a resistance wire is low, and for the printing nozzle which takes metal as consumable material, the high melting point metal is not easy to melt, and the nozzle is easy to block after the material is melted, so that the consumable material is difficult to extrude.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the 3D printing nozzle provided by the invention has the advantages that the heating efficiency is high, the nozzle is not easy to block, and the consumable extrusion efficiency is high.
The invention further provides a 3D printing device with the 3D printing nozzle.
The 3D printing nozzle according to the embodiment of the first aspect of the invention comprises:
the automatic consumable supply nozzle comprises a nozzle body, a nozzle body and a control device, wherein a heating cavity is formed in the nozzle body, an extrusion opening is formed in one end of the nozzle body and communicated with the heating cavity, and the extrusion opening and the heating cavity are used for consumable supply to penetrate;
the heating body is wound outside the spray head body;
air feed subassembly, including the piece of ventilating, the piece of ventilating with this body coupling of shower nozzle, the inside of piece of ventilating has the chamber of ventilating, the chamber of ventilating with heating chamber intercommunication, the piece of ventilating be used for to heating chamber air feed.
The 3D printing nozzle provided by the embodiment of the invention at least has the following beneficial effects:
according to the 3D printing nozzle in the embodiment of the invention, the metal consumable is heated based on an electromagnetic induction heating mode, the influence of the melting point of metal is small, the metal consumable can be rapidly heated and melted, the heating efficiency is high, the air flow can be introduced into the heating cavity through the air inlet part, the melted consumable can be rapidly extruded from the extrusion port, the nozzle is prevented from being blocked by the consumable, in addition, the heat in the heating cavity is taken away in the air flow flowing process, the high temperature of the nozzle body and the heating body is reduced, and the service life of the 3D printing nozzle is prolonged.
According to some embodiments of the present invention, the air supply assembly further includes an adaptor, the adaptor has an air guide cavity therein, the adaptor is connected to an end of the nozzle body, the air guide cavity is communicated with the air guide cavity, and the air guide cavity is communicated with an end of the heating cavity away from the extrusion opening.
According to some embodiments of the invention, the air supply assembly further comprises an inner tube, one end of the inner tube is connected with the top end of the adapter, the other end of the inner tube is inserted into the heating cavity, an air supply cavity is arranged between the outer wall of the inner tube and the inner wall of the sprayer body, and the air supply cavity is communicated with the air guide cavity and the heating cavity.
According to some embodiments of the present invention, the air supply assembly further includes an outer tube, the outer tube is connected to the adaptor, the outer tube is sleeved outside the inner tube, the outer tube is inserted into the heating cavity, and the air supply cavity is formed between an inner wall of the outer tube and an outer wall of the inner tube.
According to some embodiments of the invention, the heating body is hollow inside, forming a cooling duct for passing a cooling object.
According to some embodiments of the present invention, the head further comprises a nozzle connected to one end of the head body, the nozzle protruding from a surface of the head body.
According to some embodiments of the invention, the side of the nozzle has a guiding ramp, which gradually approaches the extrusion opening in a direction towards the extrusion opening.
The 3D printing apparatus according to a second aspect embodiment of the present invention includes:
the 3D printing nozzle of the embodiment of the first aspect;
the feeding rollers are arranged oppositely and can rotate, and can clamp the consumable and drive the consumable to move.
According to some embodiments of the invention, the consumable supply device further comprises at least two orientation parts, the orientation parts are arranged at the top of the 3D printing spray head and are distributed at intervals in the vertical direction, and the orientation parts are used for the consumable supply to penetrate through.
According to some embodiments of the invention, the feed roller is located between two adjacent said orienting members.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The invention is further described with reference to the following figures and examples, in which:
FIG. 1 is a schematic structural diagram of an embodiment of a 3D printing head according to the present invention;
FIG. 2 is a cross-sectional view of one embodiment of the 3D print head of FIG. 1;
FIG. 3 is an enlarged view of portion A of FIG. 2;
FIG. 4 is a schematic structural diagram of a 3D printing apparatus according to an embodiment of the present invention;
fig. 5 is a cross-sectional view of one embodiment of the 3D printing device of fig. 4.
Reference numerals:
a nozzle body 100, a heating chamber 110, an extrusion opening 120; heating body 200, cooling channel 210; the air supply assembly 300, the air breather 310, the air breather cavity 311, the adapter 320, the air guide cavity 321, the inner pipe 330, the air supply cavity 340 and the outer pipe 350; a nozzle 400; a feed roller 500, engaging teeth 510; the directing member 600.
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 accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, the meaning of a plurality is one or more, the meaning of a plurality is two or more, and the above, below, exceeding, etc. are understood as excluding the present numbers, and the above, below, within, etc. are understood as including the present numbers. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
In the description of the present invention, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The embodiment of the invention provides a 3D printing nozzle which is used for heating metal consumables and extruding the metal consumables after the metal consumables are melted. Referring to fig. 1 and 2, the 3D printing nozzle includes a nozzle body 100, a heating body 200 and an air supply assembly 300, the nozzle body 100 has a heating cavity 110 therein, one end of the nozzle body 100 is provided with an extrusion port 120, the extrusion port 120 is communicated with the heating cavity 110, the extrusion port 120 and the heating cavity 110 are both used for consumable materials to penetrate, the heating body 200 is wound outside the nozzle body 100, consumable materials to be heated penetrate in the heating cavity 110, the heating body 200 generates a high-frequency electromagnetic field after being powered on, because the metal consumable is positioned inside the heating body 200, the metal consumable is heated and melted rapidly under the action of the electromagnetic field based on the electromagnetic induction heating principle, the electromagnetic induction heating has the characteristics of rapid heating, uniform heating and high efficiency, the heating body 200 is not in contact with metal consumables, so that the influence of high temperature on the heating body 200 and the nozzle body 100 can be reduced, and the service life of the 3D printing nozzle is prolonged; in addition, the air supply assembly 300 can ventilate the heating cavity 110, the melted consumable materials can be extruded out of the extrusion port 120 rapidly under the driving of the air flow, the extrusion port 120 is prevented from being blocked by the consumable materials, the extrusion efficiency of the consumable materials is high, concretely, the air supply assembly 300 comprises the air supply piece 310, the air supply piece 310 is used for ventilating the heating cavity 110, the air supply piece 310 is connected with the spray head body 100, the air supply cavity 311 is formed in the air supply piece 310, the air supply cavity 311 is communicated with the heating cavity 110, the air flow in the air supply cavity 311 can enter the heating cavity 110, and the melted consumable materials are extruded out of the extrusion port 120 under the driving of the air flow in the heating cavity 110.
The 3D printing nozzle in the embodiment of the invention heats metal consumables based on an electromagnetic induction heating mode, is less influenced by a metal melting point, enables the metal consumables to be rapidly heated and melted, and has high heating efficiency, and the air flow piece 310 can introduce air flow into the heating cavity 110, so that the melted consumables can be rapidly extruded from the extrusion port 120, thereby preventing the consumables from blocking the nozzle, and in addition, the air flow takes away heat in the heating cavity 110 in the flowing process, reducing the high temperature of the nozzle body 100 and the heating body 200, and prolonging the service life of the 3D printing nozzle.
The heating body 200 is made of brass, carbon steel, or the like, and is wound in a spiral shape to form an electromagnetic heating coil; the nozzle body 100 can be made of high temperature resistant and heat insulating materials such as ceramics, so as to bear the heating high temperature of consumables and obstruct the heat transfer from the consumables to the heating body 200. In addition, the vent 310 is filled with inert gas, so that on one hand, a stable heating environment is created for consumables, the situation that the melting and printing quality is affected due to the reaction of high-temperature active metal and air after the temperature is raised is avoided, on the other hand, heat in the heating cavity 110 is taken away, and the airflow pushing effect is improved for the extrusion of the consumables; in one embodiment, the consumable may be a metal such as aluminum alloy, steel, magnesium, etc., and the inert gas may be argon, helium, etc.
In one embodiment, the air supply assembly 300 further includes an adaptor 320, the adaptor 320 has an air guide cavity 321 therein, the adaptor 320 is connected to an end of the nozzle body 100, the air guide cavity 311 is communicated with the air guide cavity 321, and the air guide cavity 321 is communicated with an end of the heating cavity 110 far away from the extrusion opening 120. It can be understood that the extrusion opening 120 is located at the lower end of the showerhead body 100, so that the consumable can be extruded from the extrusion opening 120 under the action of gravity, the adaptor 320 is connected to the top of the showerhead body 100, the air flow flows from the top to the lower end of the heating chamber 110, and the consumable can be rapidly extruded from the extrusion opening 120 under the combined action of gravity and air flow, thereby avoiding the extrusion opening 120 from being blocked; in addition, the ventilation piece 310 can be connected to the side of the adapter piece 320, the position distribution of the ventilation piece 310 is convenient, and the interference with other parts positioned at the top of the spray head body 100 is avoided, and through the arrangement of the adapter piece 320, the air flow in the ventilation piece 310 firstly enters the air guide cavity 321 from the side of the spray head body 100, and then enters the heating cavity 110 from the air guide cavity 321 downwards, the air flow turns in the air guide cavity 321, the phenomenon that the air flow in the ventilation piece 310 directly enters the heating cavity 110 from the side, consumable materials are impacted, consumable materials shake is caused, and the heating and extrusion of the consumable materials are influenced.
In order to further protect the consumable and reduce the impact of the airflow on the side of the consumable, referring to fig. 3, in an embodiment of the present invention, the air supply assembly 300 further includes an inner tube 330, one end of the inner tube 330 is located in the air guide cavity 321 and connected to the top end of the adaptor 320, the other end of the inner tube 330 is inserted into the heating cavity 110, an air supply cavity 340 is provided between the outer wall of the inner tube 330 and the inner wall of the showerhead body 100, the air supply cavity 340 is communicated with the air guide cavity 321 and the heating cavity 110, the consumable is inserted into the inner tube 330, and the inner tube 330 protects the consumable to prevent the airflow introduced into the air guide cavity 321 from the air guide cavity 311 from directly impacting the consumable.
It should be noted that the air feeding cavity 340 between the inner tube 330 and the nozzle body 100 is annular, and the airflow action on different areas of the consumable is uniform, so that the consumable can be extruded downwards from the extrusion opening 120, and the printing quality is prevented from being affected by the deflection of the consumable; and because the distance between the inner tube 330 and the nozzle body 100 is smaller, the air-sending chamber 340 is in a slit shape, the air current discharged from the air-guiding chamber 321 flows along the inner wall of the nozzle body 100, according to the bernoulli boundary effect, the air current discharged from the extrusion opening 120 still flows along the edge of the nozzle body 100 and is annularly ejected, the consumable material is surrounded inside the air current, the high-temperature molten metal can be prevented from being solidified and bonded due to the contact with the inner wall of the nozzle body 100, under the guiding action of the air current, the molten consumable material can be directly ejected downwards from the extrusion opening 120, the effect of directionally extruding the metal consumable material is achieved, the defect that the consumable material is unevenly ejected is overcome, and because the air current flows along the inner wall of the nozzle body 100, the air current takes away the heat of the heating chamber 110 in the flowing process, and cools the nozzle body 100, the consumable material is prevented from being softened at the extrusion end due to the overhigh temperature of the nozzle body 100, the extrusion efficiency of consumables is influenced, or the heating efficiency of the heating body 200 is reduced in a high-temperature environment, and the service life of the 3D printing nozzle is shortened.
In addition, the adaptor 320 may be set to be funnel-shaped, the outer wall of the adaptor 320 gradually contracts inwards along the direction toward the extrusion port 120, on one hand, it is ensured that the air guide cavity 321 has a large volume, and can receive the air introduced from the air guide cavity 311, increase the flow and flow rate of the air flow introduced into the air supply cavity 340, and ensure the directional spraying and cooling effects of the air flow, on the other hand, the inner wall of the adaptor 320 guides the air flow, so that the air flow can rapidly flow from the air guide cavity 321 into the air supply cavity 340.
In order to facilitate the connection between the gas supply assembly 300 and the showerhead body 100, in the embodiment of the present invention, the gas supply assembly 300 further includes an outer tube 350, the outer tube 350 is sleeved outside the inner tube 330, one end of the outer tube 350 is connected to the bottom of the adaptor 320, the outer tube 350 is inserted into the heating chamber 110, and a gas supply chamber 340 is formed between the inner wall of the outer tube 350 and the outer wall of the inner tube 330. The air supply assembly 300 is connected with the spray head body 100 in an inserting manner, the assembly is convenient and fast, after the outer pipe 350 is inserted into the heating cavity 110, the air supply cavity 340 is communicated with the heating cavity 110, and the air flow in the air supply cavity 340 directly flows into the heating cavity 110; the vent 310, adaptor 320, inner tube 330 and outer tube 350 may be integrally formed to facilitate the manufacture of the plenum assembly 300.
It is conceivable that the inner wall of the lower end of the outer tube 350 may be provided with a chamfer that guides the air flow in the air feeding chamber 340 to the inner wall of the head body 100, so that the air flow is discharged from the air feeding chamber 340 and flows toward the inner wall of the head body 100, thereby further optimizing the slit orientation effect of the air flow at the extrusion port 120.
In an embodiment of the present invention, the 3D printing nozzle further includes a nozzle 400, the nozzle 400 is connected to one end of the nozzle body 100, the nozzle 400 and the nozzle body 100 may be integrally connected, the nozzle 400 protrudes out of the surface of the nozzle body 100, and the nozzle has a larger wall thickness at the nozzle 400, so that the nozzle 400 has a better heat insulation effect; the end of extruding of consumptive material has high temperature usually, can reduce the heat conduction effect of consumptive material to the outside through setting up nozzle 400 to, nozzle 400 can also carry on spacingly to heating body 200, makes heating body 200 twine in the region that shower nozzle body 100 is located nozzle 400 top, reduces the influence of high temperature to heating body 200 heating efficiency.
When the air current was discharged from extruding mouthful 120, under the drive of air current, the air that is located nozzle 400 outside edge follows the flow of air current and flows, for the directional spun effect of better reaching the consumptive material, the lateral part of nozzle 400 still is provided with the direction slope, the direction slope is close to the inboard of shower nozzle body 100 gradually along the direction of extruding mouthful 120, thereby the air in the nozzle 400 outside can draw close to extruding mouthful 120 gradually, strengthen the intensity of extruding mouthful 120 department air current, thereby directional degree when improving the metal consumptive material and extruding.
In one embodiment of the present invention, as shown in fig. 2 and 3, the heating body 200 is hollow, and a cooling channel 210 is formed in the heating body 200, and a cooling object can be introduced into the cooling channel 210, so that the heating body 200 can be continuously cooled by introducing the cooling object into the cooling channel 210 during the process of heating the consumable material by the heating body 200, so that the heating body 200 can work at a proper temperature, the heating efficiency of the heating body 200 can be ensured, and the service life of the heating body 200 can be prolonged. It is conceivable that the cooling object may be a gas or a liquid, such as water, a solution, air, etc. having a low temperature.
As shown in fig. 4 and 5, the invention further provides a 3D printing device, which includes the 3D printing nozzle, and further includes two feeding rollers 500, the two feeding rollers 500 are used for feeding metal consumables into the nozzle for heating, the two feeding rollers 500 are arranged oppositely, the two feeding rollers 500 can rotate, the two feeding rollers 500 clamp the consumables and drive the consumables to move in the rotating process, so as to realize continuous delivery of the consumables.
For the directional effect of extruding of improvement consumptive material to make the consumptive material can follow the direction of predetermineeing and send into the shower nozzle, 3D printing device still includes two at least directional 600, and directional 600's inside cavity can supply the consumptive material to wear to establish, and directional 600 is along vertical direction interval distribution, and the combination of a plurality of directional 600 is directed the consumptive material, makes the consumptive material send into in the heating chamber 110 along vertical direction. It should be noted that, a component for installing the orientation member 600 should be disposed in the 3D printing apparatus, so that the orientation member 600 keeps a stable position, and an orientation effect on the consumable is ensured.
Furthermore, the feeding roller 500 is located between two adjacent directional components 600, and the feeding roller 500 and the directional components 600 are matched with each other, so that on one hand, consumables located at the upstream of the feeding roller 500 can be accurately clamped between the two feeding rollers 500 under the guiding action of the directional components 600, and then move under the driving of the feeding roller 500, and on the other hand, consumables located at the downstream of the feeding roller 500 can accurately enter the heating cavity 110 to be heated under the guiding action of the directional components 600, and thus directional feeding is achieved.
The surface align to grid of pay-off gyro wheel 500 has a plurality of interlock teeth 510, and interlock teeth 510 on two pay-off gyro wheels 500 mutually support, can increase the frictional force between pay-off gyro wheel 500 and the consumptive material, strengthens the centre gripping dynamics of pay-off gyro wheel 500 to the consumptive material, avoids pay-off gyro wheel 500 to rotate the relative consumptive material of in-process and skids.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention. Furthermore, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict.
Claims (10)
- 3D prints shower nozzle, its characterized in that includes:the automatic consumable supply nozzle comprises a nozzle body, a nozzle body and a control device, wherein a heating cavity is formed in the nozzle body, an extrusion opening is formed in one end of the nozzle body and communicated with the heating cavity, and the extrusion opening and the heating cavity are used for consumable supply to penetrate;the heating body is wound outside the spray head body;air feed subassembly, including the piece of ventilating, the piece of ventilating with this body coupling of shower nozzle, the inside of piece of ventilating has the chamber of ventilating, the chamber of ventilating with heating chamber intercommunication, the piece of ventilating be used for to heating chamber air feed.
- 2. The 3D printing nozzle as claimed in claim 1, wherein the air supply assembly further comprises an adapter, an air guide cavity is formed in the adapter, the adapter is connected to the end of the nozzle body, the air guide cavity is communicated with the air guide cavity, and the air guide cavity is communicated with one end of the heating cavity, which is far away from the extrusion opening.
- 3. The 3D printing nozzle according to claim 2, wherein the air supply assembly further comprises an inner tube, one end of the inner tube is connected with the top end of the adapter, the other end of the inner tube is inserted into the heating cavity, an air supply cavity is arranged between the outer wall of the inner tube and the inner wall of the nozzle body, and the air supply cavity is communicated with the air guide cavity and the heating cavity.
- 4. The 3D printing nozzle according to claim 3, wherein the air supply assembly further comprises an outer tube, the outer tube is connected to the adapter, the outer tube is sleeved outside the inner tube, the outer tube is inserted into the heating cavity, and the air supply cavity is formed between the inner wall of the outer tube and the outer wall of the inner tube.
- 5. The 3D printing nozzle according to any one of claims 1 to 4, wherein the heating body is hollow inside, forming a cooling duct for passing a cooling object.
- 6. The 3D printing head according to any one of claims 1 to 4, further comprising a nozzle connected to one end of the head body, the nozzle protruding out of a surface of the head body.
- 7. The 3D printing nozzle according to claim 6, wherein the side of the nozzle has a guiding slope gradually approaching the extrusion opening in a direction towards the extrusion opening.
- The 3D printing device is characterized by comprising:the 3D printing jet of any one of claims 1 to 7;the feeding rollers are arranged oppositely and can rotate, and can clamp the consumable and drive the consumable to move.
- 9. The 3D printing device according to claim 8, further comprising at least two orientation members, wherein the orientation members are arranged at the top of the 3D printing nozzle and are distributed at intervals in the vertical direction, and the orientation members are used for the consumable to penetrate through.
- 10. The 3D printing device according to claim 9, wherein the feed roller is located between two adjacent orientation members.
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Effective date of registration: 20231208 Address after: Room 106, 1st Floor, R&D Building, No. 567 Yongle Road, Wangdian Town, Xiuzhou District, Jiaxing City, Zhejiang Province, 314000 Patentee after: Sirui Additives (Jiaxing) Co.,Ltd. Address before: No.1088 Xueyuan Avenue, Taoyuan Street, Nanshan District, Shenzhen, Guangdong 518055 Patentee before: Southern University of Science and Technology |
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