CN213618373U - Anti-disturbance 3D printing nozzle - Google Patents

Anti-disturbance 3D printing nozzle Download PDF

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Publication number
CN213618373U
CN213618373U CN202022336429.1U CN202022336429U CN213618373U CN 213618373 U CN213618373 U CN 213618373U CN 202022336429 U CN202022336429 U CN 202022336429U CN 213618373 U CN213618373 U CN 213618373U
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pipe
heating
material pipe
printing
heat dissipation
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CN202022336429.1U
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Chinese (zh)
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韩斌
陈俱飞
蔡娟
韩礼丰
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Loongo Co ltd
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Loongo Co ltd
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Abstract

The utility model provides an anti-disturbance 3D printing nozzle, which comprises a printing head and a heating mechanism which is arranged at the upper part of the printing head and is butted with the printing head, wherein a wire feeding pipe is connected on the heating mechanism; the upper part of the heating mechanism is provided with a heat dissipation mechanism sleeved outside the wire feeding pipe, a heating material pipe which is longitudinally arranged and communicated with the printing head and the wire feeding pipe is arranged in the heating mechanism, the heating material pipe comprises a preheating material pipe butted with the wire feeding pipe and a leading-out material pipe butted with the printing head, and a mixed material pipe is arranged between the preheating material pipe and the leading-out material pipe; the mixed spiral body is arranged in the mixed material pipe. The utility model discloses a 3D of anti-disturbance prints shower nozzle, the wire material after ability even heating wire material and the mixed melting improves the stability of pay-off.

Description

Anti-disturbance 3D printing nozzle
Technical Field
The utility model relates to a 3D prints technical field, concretely relates to 3D of anti-disturbance prints shower nozzle.
Background
3D printing technology is becoming more and more widely used due to its high efficiency and low cost. Currently, according to different forming methods, 3D printing technologies can be classified into different categories, such as Stereolithography (SLA), stacked entity Manufacturing (LOM), Selective Laser Sintering (SLS), Fused Deposition Manufacturing (FDM), etc., wherein the FDM rapid forming system is substantially different from other systems in that a laser system is not used, so that the cost is the lowest, and the FDM rapid forming system is also a 3D printing technology which is currently most widely used.
The FDM process is a process in which a solid low melting point filamentary material, such as PLA or ABS, is heated to a semi-molten state and then extruded for printing. Melting the filamentous material at high temperature, extruding the filamentous material by a heated printing head, solidifying the extruded filamentous material, and finally arranging the filamentous material in a three-dimensional space to form a three-dimensional object. Fused deposition type 3D printing is widely applied due to simple process, low cost, no laser and high forming speed, but has certain defects in the aspect of metal printing. At present, the printing nozzle of the FDM type has the defects that printing materials are difficult to completely liquefy, so that printing defects are caused in the processes of conveying and extruding; and the problems of improper heat dissipation, blockage of printing consumables and inconvenient maintenance.
In the prior art, the printing nozzle of FDM type has been improved, patent application number: CN201820594098.1, inventive name: A3D printing nozzle device for fused deposition type metal; the utility model discloses a 3D printing nozzle device for fused deposition type metal, which comprises a spiral lifting mechanism, an extrusion material spraying mechanism and a fixed connecting mechanism; the spiral lifting mechanism comprises a worm and a worm wheel which are meshed through gear teeth, and a screw rod which is in threaded transmission with the worm wheel; the tail end of the screw rod is connected with the piston through a piston screw rod connecting hole; the extrusion material ejection mechanism comprises a material barrel and a nozzle, wherein thread mounting holes are formed in two ends of the material barrel, mounting positioning holes are formed in the nozzle, and the thread mounting holes in the lower end of the material barrel are correspondingly connected with the mounting positioning holes of the nozzle; the charging barrel is provided with a heating sleeve, and the nozzle is provided with a temperature sensor and a heating pipe; the threaded mounting hole at the upper end of the charging barrel is connected with the spiral lifting mechanism through the fixed connecting mechanism; fixed connection mechanism is convenient for 3D prints the shower nozzle device and installs on 3D printing apparatus.
In the prior art, the following defects still exist, firstly, in the process of liquefying the raw materials, the liquefying temperature of the raw materials is not uniform enough, so that the quality defect of the printed finished product exists. Secondly, uneven heating easily causes the feeding to be not smooth and stable enough, causes the printing disturbance, thereby causing the unstable quality of the printed finished product.
SUMMERY OF THE UTILITY MODEL
The utility model overcomes prior art's is not enough, provides a 3D of anti-disturbance prints shower nozzle, can the even heating silk material and mix the silk material after the melting, improves the stability of pay-off.
In order to achieve the above purpose, the utility model adopts the technical scheme that: an anti-disturbance 3D printing nozzle comprises a printing head and a heating mechanism which is arranged at the upper part of the printing head and is in butt joint with the printing head, wherein a wire feeding pipe is connected to the heating mechanism; the heating mechanism is internally provided with a longitudinally arranged heating material pipe communicated with the printing head and the wire feeding pipe, the heating material pipe comprises a preheating material pipe butted with the wire feeding pipe and a leading-out material pipe butted with the printing head, and a mixed material pipe is arranged between the preheating material pipe and the leading-out material pipe; and a mixing spiral body is arranged in the mixing pipe.
In a preferred embodiment of the present invention, the mixing screw comprises a plurality of screws arranged longitudinally embedded in the mixing pipe.
In a preferred embodiment of the present invention, the plurality of longitudinally arranged helices include a positive helix and a negative helix which are adjacently arranged; the spiral directions of the positive spiral body and the reverse spiral body are opposite.
In a preferred embodiment of the present invention, the positive spiral body and the negative spiral body are arranged at intervals in the mixing spiral body.
The utility model discloses an in the preferred embodiment, heat dissipation mechanism establishes the outside heat dissipation sleeve pipe of conveying pipe including the cover, the heat dissipation sleeve pipe is provided with the radiating fin that a plurality of intervals set up outward, heat dissipation sleeve pipe lower part is provided with the fixed embedding of a plurality of and establishes butt joint heat conduction pole among the heating mechanism.
In a preferred embodiment of the present invention, the docking heat-conducting rod, the heat-radiating fins and the heat-radiating sleeve are made of heat-conducting metal.
The utility model provides a defect that exists in the technical background, the utility model discloses profitable technological effect is:
the utility model discloses a 3D of anti-disturbance prints shower nozzle can stably send a, the function of even heating mixing liquefaction.
First, through be provided with the heating material pipe in heating mechanism, utilize the heating material pipe to heat the silk material, through the syllogic heating of heating material pipe, the silk material that the pipe introduced is sent in advance to the preheating pipe with sending the butt joint of silk pipe, recycle the intraductal mixed spirochaeta of mixture and carry out the hybrid heating to leading-in proper order by preheating the preliminary fused silk material of material pipe, at last through with the leading-out material pipe that beats the butt joint of printer head with abundant fused silk material through leading-in printer head after mixing, export through the discharge opening that beats printer head. The uniformity of heating and the convenience of mixing and heating of the silk material in the mixed material pipe are improved. The discharging of the printing head is smoother. The original straight pipe material guiding path of the spiral heating mixing path is prolonged, and the melting mixing performance is improved.
Secondly, the mixed spiral body adopts the positive spiral body and the negative spiral body which are alternately and longitudinally arranged, so that the condition that the heating uniformity and the mixing sufficiency after the silk material is melted are further improved only by a melting heat transfer mode from the surface to the inside of the silk material in the prior art is avoided.
Thirdly, through the arrangement of the heat dissipation mechanism, the heat dissipation mechanism is butted with the heating mechanism, and the heat dissipation mechanism is sleeved outside the wire feeding pipe to assist the heating mechanism in dissipating heat. The safety and the stability of equipment operation have been promoted, and the overheated problem of equipment operating temperature that causes heat dissipation mechanism itself in the continuous production course of working of heat dissipation mechanism is overheated in the prevention.
Drawings
The present invention will be further explained with reference to the drawings and examples.
FIG. 1 is a schematic structural view of a disturbance-tolerant 3D printing head of a preferred embodiment of the present invention;
fig. 2 is a schematic structural diagram of a mixing tube in a disturbance-resistant 3D printing head according to a preferred embodiment of the present invention;
the device comprises a heating mechanism 1, a heating cable 11, a temperature measuring cable 12, a heat dissipation mechanism 2, a butt joint heat conducting rod 21, a heat dissipation fin 22, a heat dissipation sleeve 23, a heating material pipe 3, a preheating material pipe 31, a mixing material pipe 32, a discharging material pipe 33, a butt joint groove 331, a mixing spiral body 34, a straight spiral body 341, an inverted spiral body 342, a printing head 4, a wire feeding pipe 5 and a wire material 6.
Detailed Description
The invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic drawings and illustrate, by way of illustration only, the basic structure of the invention, and which therefore show only the constituents relevant to the invention.
It should be noted that, if directional indications (such as up, down, bottom, top, etc.) are involved in the embodiments of the present invention, the directional indications are only used for explaining the relative position relationship between the components, the motion situation, etc. in a specific posture, and if the specific posture is changed, the directional indications are changed accordingly. 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. Unless expressly stated or limited otherwise, the terms "disposed," "connected," and "connected" are intended to be inclusive and mean, for example, that there may be a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example one
As shown in fig. 1 and 2, an anti-disturbance 3D printing nozzle includes a printing head 4, and a heating mechanism 1 disposed on the upper portion of the printing head 4 and butted with the printing head 4, wherein a wire feeding tube 5 is connected to the heating mechanism 1, and the heating mechanism 1 is connected to the wire feeding tube 5 and the printing head 4. The heating mechanism 1 is connected with the wire feeding pipe 5 and the printing head 4, and the wire feeding pipe 5, the heating mechanism 1 and the printing head 4 are arranged on a straight line. The upper part of the heating mechanism 1 is provided with a heat dissipation mechanism 2 sleeved outside the wire feeding pipe 5, a heating material pipe 3 longitudinally arranged and communicated with the printing head 4 and the wire feeding pipe 5 is arranged in the heating mechanism 1, the heating material pipe 3 comprises a preheating material pipe 31 butted with the wire feeding pipe 5 and a leading-out material pipe 33 butted with the printing head 4, and a mixed material pipe 32 is arranged between the preheating material pipe 31 and the leading-out material pipe 33; a mixing screw 34 is arranged in the mixing pipe 32. The mixing spiral body 34 comprises a plurality of vertical spiral bodies 341 and reverse spiral bodies 342 which are coaxially arranged in the longitudinal direction and are embedded in the mixing pipe 32; the positive spiral body 341 and the negative spiral body 342 are adjacently arranged in the mixing spiral body 34 at intervals; the spiral directions of the positive spiral body 341 and the reverse spiral body 342 are opposite.
Specifically, be provided with in the heating mechanism 1 and establish the cover and establish the heating jacket in preheating material pipe 31 and mixing tube 32 and deriving the outside of material pipe 33, the heating jacket is connected with heating cable 11 electricity, and then adjust the heating power of heating jacket through adjusting the electric energy size of giving the heating jacket power supply, specifically, the electric energy regulating circuit that the regulating circuit that generates heat adopted can directly adopt among the prior art, the preferred resistance adjuster who concatenates with heating jacket and heating cable 11 of the theory of operation of electric energy regulating circuit adjusts the electric energy size that provides for the heating jacket. Heating mechanism 1 is inside to be provided with thermal sensor, detect the heating temperature of heating mechanism 1 through thermal sensor, thermal sensor adopts general thermal sensor model among the prior art, the temperature that the specific selection of model heated according to actual need is selected, derive the reading equipment for thermal signal parameter through temperature measurement cable 12 with thermal sensor's monitoring signal simultaneously, the reading equipment of thermal signal parameter adopts the reading circuit among the prior art, the reading of thermal sensor's monitoring signal directly adopts the circuit structure among the prior art, and is not the utility model discloses the place of sexual improvement, no longer detailed description here.
Specifically, the heat dissipation mechanism 2 comprises a heat dissipation sleeve 23 sleeved outside the feeding pipe, a plurality of heat dissipation fins 22 arranged at intervals are arranged outside the heat dissipation sleeve 23, and a plurality of butt joint heat conduction rods 21 fixedly embedded in the heating mechanism 1 are arranged on the lower portion of the heat dissipation sleeve 23. The butt heat conduction rod 21, the heat dissipation fins 22 and the heat dissipation sleeve 23 are made of heat conductive metal.
Example two
On the basis of the first embodiment, two or more wire feeding pipes 5 are arranged, the wire feeding pipes 5 are butted with the heating material pipes 3 of the heating mechanism 1, the heating material pipes 3 are provided with two or more groups of preheating material pipes 31, the wire feeding mechanisms are respectively butted with the corresponding preheating material pipes 31 through no wire feeding mechanism, the corresponding wires 6 are preheated and melted through the preheating material pipes 31, then the wires are guided into the mixing material pipes 32, are uniformly mixed through the mixing material pipes 32, and are guided out through the material guiding pipes 33 and the printing heads 4 butted with the material guiding pipes 33.
Furthermore, the mixing screw 34 in the mixing pipe 32 is made of a heat conducting material, so that the heat conducting uniformity of the melting and mixing of the mixing screw 34 in the mixing pipe 32 is further improved.
The utility model discloses the theory of operation:
as shown in fig. 1 and 2, a wire 6 is guided into a wire feeding pipe 5 by a peripheral wire feeding mechanism, the wire 6 penetrates through the wire feeding pipe 5 and enters a heating material pipe 3 arranged in a heating mechanism 1, the heating material pipe 3 is used for heating the wire 6, the wire 6 introduced into the wire feeding pipe 5 is preheated by a preheating material pipe 31 butted with the wire feeding pipe 5 through three-stage heating of the heating material pipe 3, then the mixing screw 34 in the mixing material pipe 32 is used for mixing and heating the wire 6 which is sequentially introduced and preliminarily melted by the preheating material pipe 31, and the mixing screw 34 adopts a normal screw 341 and a reverse screw 342 which are alternately and longitudinally arranged, so that the problem that the heating uniformity and the mixing sufficiency of the melted wire 6 are further improved only by a melting heat transfer mode of the wire 6 which is shown to the inside in the prior art is avoided.
And finally, the fully molten silk materials 6 are mixed by a material outlet pipe 33 butted with the printing head 4, then are introduced into the printing head 4, and are discharged through a discharge hole of the printing head 4. The uniformity of heating and the convenience of mixing and heating of silk material 6 in mixing pipe 32 have been promoted. So that the discharging of the printing head 4 is smoother.
Meanwhile, through the arrangement of the heat dissipation mechanism 2, the heat dissipation mechanism 2 is in butt joint with the heating mechanism 1, the heat dissipation mechanism 2 is sleeved outside the wire feeding pipe 5, and the auxiliary heating mechanism 1 is used for dissipating heat. The problem that the equipment operation temperature of the heat dissipation mechanism 2 is overheated in the continuous production and processing process due to the overheating of the heat dissipation mechanism 2 is prevented.
Above concrete implementation is right the utility model provides a scheme thought concrete support, can not injecing with this the utility model discloses a protection scope, all according to the utility model provides a technical thought, any change or equivalent change of equivalence that do on this technical scheme basis all still belong to the utility model discloses technical scheme's scope of protection.

Claims (6)

1. An anti-disturbance 3D printing nozzle comprises a printing head and a heating mechanism which is arranged at the upper part of the printing head and is in butt joint with the printing head, wherein a wire feeding pipe is connected to the heating mechanism; the method is characterized in that: the heating mechanism is internally provided with a longitudinally arranged heating material pipe communicated with the printing head and the wire feeding pipe, the heating material pipe comprises a preheating material pipe butted with the wire feeding pipe and a leading-out material pipe butted with the printing head, and a mixed material pipe is arranged between the preheating material pipe and the leading-out material pipe; and a mixing spiral body is arranged in the mixing pipe.
2. The disturbance-resistant 3D printing jet of claim 1, wherein: the mixing spiral body comprises a plurality of spiral bodies which are longitudinally arranged and embedded in the mixing pipe.
3. The disturbance-resistant 3D printing jet of claim 2, wherein: the plurality of longitudinally arranged spiral bodies comprise a positive spiral body and a negative spiral body which are adjacently arranged; the spiral directions of the positive spiral body and the reverse spiral body are opposite.
4. The disturbance-resistant 3D printing jet of claim 3, wherein: the positive spiral body and the negative spiral body are arranged in the mixed spiral body at intervals.
5. The disturbance-resistant 3D printing jet of claim 4, wherein: the heat dissipation mechanism comprises a heat dissipation sleeve sleeved outside the feeding pipe, a plurality of heat dissipation fins are arranged outside the heat dissipation sleeve at intervals, and a plurality of butt joint heat conduction rods fixedly embedded in the heating mechanism are arranged on the lower portion of the heat dissipation sleeve.
6. The disturbance-resistant 3D printing jet of claim 5, wherein: the butt joint heat conduction rod, the heat dissipation fins and the heat dissipation sleeve are made of heat conduction metal.
CN202022336429.1U 2020-10-20 2020-10-20 Anti-disturbance 3D printing nozzle Active CN213618373U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202022336429.1U CN213618373U (en) 2020-10-20 2020-10-20 Anti-disturbance 3D printing nozzle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202022336429.1U CN213618373U (en) 2020-10-20 2020-10-20 Anti-disturbance 3D printing nozzle

Publications (1)

Publication Number Publication Date
CN213618373U true CN213618373U (en) 2021-07-06

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Application Number Title Priority Date Filing Date
CN202022336429.1U Active CN213618373U (en) 2020-10-20 2020-10-20 Anti-disturbance 3D printing nozzle

Country Status (1)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114505502A (en) * 2022-01-20 2022-05-17 上海应用技术大学 3D printing nozzle suitable for metal wire materials
CN116277943A (en) * 2023-05-17 2023-06-23 江苏三帝快速制造科技有限公司 3D printing device with nozzle anti-blocking function

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114505502A (en) * 2022-01-20 2022-05-17 上海应用技术大学 3D printing nozzle suitable for metal wire materials
CN114505502B (en) * 2022-01-20 2023-09-22 上海应用技术大学 Be suitable for 3D of wire material and print shower nozzle
CN116277943A (en) * 2023-05-17 2023-06-23 江苏三帝快速制造科技有限公司 3D printing device with nozzle anti-blocking function
CN116277943B (en) * 2023-05-17 2023-08-22 江苏三帝快速制造科技有限公司 3D printing device with nozzle anti-blocking function

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