CN218892226U - Nozzle structure of 3D printer - Google Patents
Nozzle structure of 3D printer Download PDFInfo
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- CN218892226U CN218892226U CN202222607596.4U CN202222607596U CN218892226U CN 218892226 U CN218892226 U CN 218892226U CN 202222607596 U CN202222607596 U CN 202222607596U CN 218892226 U CN218892226 U CN 218892226U
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- 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
Abstract
The utility model belongs to the technical field of 3D printing, and particularly relates to a nozzle structure of a 3D printer; comprising the following steps: the heat dissipation part is provided with a first channel penetrating up and down; the heating part is arranged at the bottom of the heat dissipation part, and is provided with a second channel which penetrates through the heating part up and down and is communicated with the first channel, and the second channel consists of an upper cavity and a lower cavity; a nozzle disposed on a lower port of the lower chamber; wherein, the nozzle and the heating part are in an integrated structure, and when the heating part heats, the material in the lower chamber is melted and flows out from the preheated nozzle. The nozzle structure of the 3D printer provided by the utility model has the advantages that the nozzle and the heating part are integrated, when the heating part heats, the material positioned on the heating part is melted and flows out from the preheated nozzle, and the circulation of the material is guided with high precision.
Description
Technical Field
The utility model belongs to the technical field of 3D printing, and particularly relates to a nozzle structure of a 3D printer.
Background
The 3D printing technique is a rapid prototyping technique in which modeling materials are stacked layer by layer into an object according to a program based on a digital model file. The nozzles in 3D printers gradually build up a three-dimensional object by stacking molten materials layer by layer on the path. And welding adjacent layers, namely providing heat required by conducting and reheating the front layer to the nozzle, so that the nozzle carries out hot melting on the material, and extruding the material after the hot melting.
Because the nozzle of the current 3D printer is generally detachable from contact with the heating part, the nozzle is connected with the heating part through the threaded connection section, a certain separation section is arranged between the position of the heating part and a cavity through which materials flow, so that when the heating part heats, heat cannot be directly transferred to the nozzle, but the heat is firstly transferred to the threaded connection section, and then the threaded connection section transfers the heat to the nozzle, so that the heat is transferred to the nozzle, the temperature of the nozzle cannot reach the optimal effect, and the temperature transfer efficiency is low; in addition, when the printing head performs printing work, the nozzle is not heated to the optimal temperature, and the material in the inner cavity of the nozzle is not melted well, so that the nozzle cannot extrude the material when the printing head feeds, and the printing precision is affected.
Secondly, because the separation section is arranged between the nozzle and the heating part, the material is easy to be blocked due to the separation section in the process of entering the nozzle after hot melting.
Disclosure of Invention
The utility model aims to solve the technical problems, and provides a nozzle structure of a 3D printer, which is formed by integrating a nozzle and a heating part, wherein when the heating part heats, materials positioned in the heating part are melted and flow out from a preheated nozzle, and the circulation of the materials is guided with high precision.
In view of the above, the present utility model provides a nozzle structure of a 3D printer, comprising:
the heat dissipation part is provided with a first channel penetrating up and down;
the heating part is arranged at the bottom of the heat dissipation part, and is provided with a second channel which penetrates through the heating part up and down and is communicated with the first channel, and the second channel consists of an upper cavity and a lower cavity;
a nozzle disposed on a lower port of the lower chamber;
wherein, the nozzle and the heating part are in an integrated structure, and when the heating part heats, the material in the lower chamber is melted and flows out from the preheated nozzle.
In the technical scheme, as the nozzle of the current 3D printer is generally detachable from contact with the heating part, the nozzle is connected with the heating part through the threaded connection end, a certain separation section is arranged between the position of the nozzle arranged on the heating part and a cavity through which materials flow, so that when the heating part heats, heat cannot be directly transferred to the nozzle, but is firstly transferred to the threaded connection section, and then the threaded connection section transfers heat to the nozzle, so that the heat is transferred to the nozzle, the temperature of the nozzle cannot reach the optimal effect, and the temperature transfer efficiency is low; in addition, when the printing head performs printing work, the nozzle is not heated to the optimal temperature, and the material in the inner cavity of the nozzle is not melted well, so that the nozzle cannot extrude the material when the printing head feeds, and the printing precision is affected. Secondly, because the separation section is arranged between the nozzle and the heating part, the material is easy to be blocked due to the separation section in the process of entering the nozzle after hot melting.
Therefore, in this technical scheme, set up nozzle and heating portion into an organic whole structure, when the heating portion heats, directly give the nozzle with heat transfer to preheat the nozzle, make the temperature that the nozzle heated can reach best effect, the material that is located in the heating portion is fused, and flow out from the nozzle that preheats, and then realize 3D printing operation, and the circulation of high accuracy guide printing material, be used for preventing printing material and jam because of excessive.
Specifically, start heating portion and begin work earlier, heating portion heats and gives the lower cavity, lower cavity links to each other with the nozzle, lower cavity just gives the nozzle with the heat direct transfer, thereby preheat the nozzle, make the temperature that the nozzle heated can reach best effect, then put into the material from the first passageway of radiating portion, the material moves to the second passageway along first passageway, the internal diameter of first passageway is the same with the internal diameter of second passageway, make the material in the transportation process, be difficult for taking place the jam phenomenon, the material is carried more smoothly, then the material is carried to the lower cavity from the last cavity of second passageway, the material that is located the lower cavity is fused, and flow out from the nozzle that preheats, make it pile up the material layer upon layer at the nozzle that carries out the direction of feed, and then accomplish 3D printing work.
In the above technical scheme, further, the heating portion includes shell and the heat conductor of setting in the shell, and the second passageway is located the heat conductor, and the heat conductor is located the external diameter of lower cavity and is equipped with electric heating pipe, and electric heating pipe distributes around lower cavity external diameter.
In this technical scheme, the shell is made by insulating material, surrounds the heat conductor through the shell and makes the heat isolation, and the second passageway sets up in the heat conductor to set up electric heating pipe at the lower cavity external diameter of second passageway, when making electric heating pipe heat, the material that is located in the lower cavity is fused, and flows from the nozzle that preheats, so alright reach and directly transmit heat to lower cavity and nozzle, make lower cavity and nozzle can reach the best temperature.
In any one of the above technical solutions, further, the heat conductor is provided with a heat conducting ring at the position of the electric heating tube, the length direction of the electric heating tube is spirally extended and arranged at the outer diameter of the lower cavity and is in contact with the heat conducting ring, and the electric heating tube is used for providing heat energy from heat to the heat conducting ring.
In this technical scheme, when electric heating pipe is heating, the heat-conducting ring is direct with electric heating pipe contact to heat the heat-conducting ring, the heat of the heat-conducting ring after the heating is higher, and gives lower cavity and nozzle with heat transfer, improves the efficiency to nozzle heating. The length direction of the electric heating pipe is spirally extended to be arranged on the outer diameter of the lower cavity and is in contact with the heat conducting ring, so that heat transferred to the lower cavity by the electric heating pipe can be more uniform, materials in the lower cavity can be melted more uniform, and the printing effect is better.
In any of the above technical solutions, further, the heat conducting ring is made of metal material.
In this technical scheme, make by metal material through the heat-conducting ring, not only have the durability, can prevent that the heat that electric heating pipe from giving off from melting the heat-conducting ring to corrosion-resistant makes the life-span of heat-conducting ring use increase, and the heat that transmits simultaneously to the cavity down increases.
In any of the above technical solutions, further, the discharge chamber of the nozzle extends downward with the width reduced, and the inner diameter of the feed port of the discharge chamber is the same as the inner diameter of the lower chamber.
In this technical scheme, through setting up the spout material chamber of nozzle into along with the reduction of breadth and downwardly extending for the nozzle is when extruding the material of melting, can guarantee the convenient printing of material size that extrudes, and the feed port internal diameter with the row material chamber is the same with the internal diameter of lower cavity, makes it the material carry more smooth and easy, and the material flows out through the incline direction of row material chamber.
In any of the above aspects, further, the heat radiating portion includes a cooling plate having fins that discharge heat into the ventilation air flow.
In the technical scheme, the cooling plate is used for radiating the heat of the nozzle structure, fins are added on the cooling plate, and the outer surface area of the cooling plate is increased, so that the aim of improving the heat exchange efficiency is fulfilled.
In any of the above embodiments, further, the cooling plates have a plurality of cooling plates and are distributed at intervals along the length direction of the first channel.
In this technical scheme, through a plurality of cooling plates to can improve the radiating effect to the nozzle structure, increase of service life.
In any of the above technical solutions, further, a flow guiding pipe is disposed in the second channel, the upper end of the flow guiding pipe penetrates through and extends out of the second channel, and one end of the flow guiding pipe extending out of the second channel extends into the first channel and is movably connected with the first channel.
In this technical scheme, through set up the honeycomb duct between first passageway and last cavity, the circulation of printing material can be guided with high accuracy to the honeycomb duct for place printing this material and block up because of the compartment, in order to ensure to carry more smoothly to the material.
In any of the above technical solutions, further, the flow guiding pipe is provided with external threads on the outer diameter of the first channel, and the inner diameter of the first channel is provided with internal threads adapted to the external threads.
In this technical scheme, through set up the external screw thread on the external diameter that the honeycomb duct is located first passageway to set up in the internal thread that the external screw thread suited at the internal diameter of first passageway, make the honeycomb duct be located the one end and the first passageway threaded connection of first passageway, when need dismantle or overhaul the radiating portion, break away from the connection with its honeycomb duct and first passageway screw thread, so convenient to use, convenient to detach or overhaul.
In any of the above embodiments, further, a fan for dissipating heat is provided outside the heat dissipating part.
In the technical scheme, the heat dissipation fan is arranged outside the radiator, so that the temperature of the feeding channel is greatly reduced, the material is prevented from being softened, the temperature of the part above the heater is low enough, and the fed low-hardness high-elasticity material can be effectively transferred before entering the heater.
The beneficial effects of the utility model are as follows:
1. the nozzle and the heating part are arranged into an integral structure, and heat is directly transferred to the nozzle when the heating part heats, so that the nozzle is preheated, the heating temperature of the nozzle can reach the optimal effect, and the material in the heating part is melted and flows out of the preheated nozzle;
2. the length direction of the electric heating pipe is spirally extended to be arranged on the outer diameter of the lower cavity and is in contact with the heat conducting ring, so that heat transferred to the lower cavity by the electric heating pipe can be more uniform, materials in the lower cavity can be melted more uniformly, and the printing effect is better;
3. the material spraying cavity of the nozzle is arranged to extend downwards along with the reduction of the width, so that the size of the extruded material can be ensured to be convenient for printing when the molten material is extruded by the nozzle, and the material is conveyed more smoothly;
4. the cooling plate is used for radiating heat of the nozzle structure, fins are added on the cooling plate, and the outer surface area of the cooling plate is increased, so that the aim of improving the heat exchange efficiency is fulfilled;
5. the circulation of printing materials can be guided by the guide pipe with high precision, and the printing materials are blocked by the separation section for placing and printing, so that the materials are conveyed more smoothly.
Drawings
FIG. 1 is a schematic perspective view of the present utility model;
FIG. 2 is a cross-sectional view of the present utility model;
FIG. 3 is an exploded view of the present utility model;
FIG. 4 is a partial cross-sectional view of the present utility model;
FIG. 5 is a cross-sectional view of a heat sink member of the present utility model;
the reference numerals in the drawings are: 1. a heat dissipation part; 101. a first channel; 102. a cooling plate; 103. a fin; 2. a heating section; 20. an upper chamber; 21. a lower chamber; 22. a housing; 23. a heat conductor; 24. an electric heating tube; 3. a nozzle; 4. a heat conducting ring; 5. a flow guiding pipe; 6. an external thread; 61. an internal thread; 7. a fan.
Detailed Description
Technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some of the embodiments of the present application, but not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application are within the scope of the protection of the present application.
In the description of the present application, it is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. For ease of description, the dimensions of the various features shown in the drawings are not drawn to actual scale. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the authorization specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present application are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged, as appropriate, such that embodiments of the present application may be implemented in sequences other than those illustrated or described herein, and that the objects identified by "first," "second," etc. are generally of a type and not limited to the number of objects, e.g., the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.
It should be noted that, in the description of the present application, the terms "front, rear, upper, lower, left, right", "horizontal, vertical, horizontal", and "top, bottom", etc. generally refer to an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, and merely for convenience of description of the present application and simplification of the description, the azimuth terms do not indicate and imply that the apparatus or element referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present application; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.
It should be noted that, in this application, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
Example 1:
as shown in fig. 1 to 5, the present embodiment provides a nozzle structure of a 3D printer, including:
the heat dissipation part 1, the heat dissipation part 1 is provided with a first channel 101 penetrating from top to bottom;
a heating part 2 arranged at the bottom of the heat dissipation part 1, wherein the heating part 2 is provided with a second channel which penetrates up and down and is communicated with the first channel 101, and the second channel consists of an upper chamber 20 and a lower chamber 21;
a nozzle 3 disposed on a lower port of the lower chamber 21;
wherein, the nozzle 3 and the heating part 2 are integrated, and when the heating part 2 heats, the material in the lower chamber 21 is melted and flows out from the preheated nozzle 3.
In the technical scheme, as the nozzle 3 of the current 3D printer is generally detachable from contact with the heating part 2, the nozzle 3 is connected with the heating part 2 through the threaded connection end, a certain separation section is arranged between the position of the nozzle 3 mounted on the heating part 2 and a cavity through which materials flow, so that when the heating part 2 heats, heat cannot be directly transferred to the nozzle 3, but heat is firstly transferred to the threaded connection section, and then the threaded connection section transfers the heat to the nozzle 3, so that the heat is transferred to the nozzle 3, the temperature of the nozzle 3 cannot reach the best effect, and the temperature transfer efficiency is low; in addition, when the printing head performs printing work, the nozzle 3 is not heated to the optimal temperature, and the material in the inner cavity of the nozzle 3 is not melted well, so that the nozzle 3 cannot squeeze the material when the printing head is fed, and the printing precision is affected. Secondly, because the separation section is arranged between the nozzle 3 and the heating part 2, the material is easy to be blocked due to the separation section in the process of entering the nozzle 3 after hot melting.
Therefore, in this technical solution, the nozzle 3 and the heating portion 2 are set to an integral structure, and when the heating portion 2 heats, heat is directly transferred to the nozzle 3, so as to preheat the nozzle 3, so that the temperature heated by the nozzle 3 can reach the optimal effect, the material in the heating portion 2 is melted and flows out from the preheated nozzle 3, thereby realizing the 3D printing work, and guiding the circulation of the printing material with high precision, so as to prevent the printing material from being blocked due to excessive.
Specifically, the heating part 2 is started to start working, the heating part 2 heats and transfers heat to the lower cavity 21, the lower cavity 21 is connected with the nozzle 3, the lower cavity 21 directly transfers heat to the nozzle 3, so that the nozzle 3 is preheated, the heating temperature of the nozzle 3 can reach the optimal effect, then materials are put in from the first channel 101 of the heat radiating part 1, the materials move to the second channel along the first channel 101, the inner diameter of the first channel 101 is the same as the inner diameter of the second channel, so that the materials are not easy to be blocked in the conveying process, the materials are conveyed more smoothly, then the materials are conveyed into the lower cavity 21 from the upper cavity 20 of the second channel, the materials positioned in the lower cavity 21 are melted, and flow out from the preheated nozzle 3, so that the materials are stacked layer by layer in the nozzle 3 in the feeding direction, and the 3D printing work is finished.
Example 2:
the present embodiment provides a nozzle structure of a 3D printer, which has the following technical features in addition to the technical scheme including the above embodiment.
As shown in fig. 1-4, in the present embodiment, the heating portion 2 preferably includes a housing 22 and a heat conductor 23 disposed in the housing 22, the second channel is located on the heat conductor 23, the outer diameter of the heat conductor 23 located in the lower chamber 21 is provided with electric heating pipes 24, and the electric heating pipes 24 are distributed around the outer diameter of the lower chamber 21.
In the technical scheme, the shell 22 is made of insulating materials, the shell 22 surrounds the heat conductor 23 to isolate heat, the second channel is arranged in the heat conductor 23, and the electric heating pipe 24 is arranged on the outer diameter of the lower chamber 21 of the second channel, so that when the electric heating pipe 24 heats, materials in the lower chamber 21 are melted and flow out of the preheated nozzle 3, and therefore, the heat can be directly transferred to the lower chamber 21 and the nozzle 3, and the lower chamber 21 and the nozzle 3 can reach the optimal temperature.
As shown in fig. 2 and 4, in the present embodiment, it is preferable that the heat conductor 23 is provided with a heat conducting ring 4 at the position of the electric heating tube 24, the electric heating tube 24 is spirally extended in the length direction and disposed at the outer diameter of the lower chamber 21 and contacts with the heat conducting ring 4, and the electric heating tube 24 is used to provide heat energy from the heat to the heat conducting ring 4.
In this technical scheme, when electric heating pipe 24 is heating, heat conducting ring 4 directly contacts with electric heating pipe 24 to heat conducting ring 4, the heat of heat conducting ring 4 after the heating is higher, and gives lower cavity 21 and nozzle 3 with heat transfer, improves the efficiency to nozzle 3 heating. The length direction of the electric heating pipe 24 is spirally extended and arranged on the outer diameter of the lower cavity 21 and is in contact with the heat conducting ring 4, so that heat transferred to the lower cavity 21 by the electric heating pipe 24 can be more uniform, materials in the lower cavity 21 can be melted more uniformly, and the printing effect is better.
As shown in fig. 2 and 4, in the present embodiment, the material of the heat conducting ring 4 is preferably made of metal.
In this technical scheme, make by the metal material through heat-conducting ring 4, not only have the durability, can prevent that the heat that electric heating pipe 24 given off from melting heat-conducting ring 4 to corrosion-resistant for heat-conducting ring 4 life-span growth, the heat that gives cavity 21 down simultaneously improves.
As shown in fig. 1-4, in this embodiment, the discharge chamber of the nozzle 3 preferably extends downward with decreasing width, the discharge chamber feed port having the same inside diameter as the lower chamber 21.
In this technical scheme, through setting the spout material chamber with nozzle 3 to follow the reduction of breadth and downwardly extending for nozzle 3 when extruding the material of melting, can guarantee the convenient printing of material size that extrudes, and the feed port internal diameter with the row material chamber is the same with the internal diameter of lower cavity 21, makes it the material transport more smooth and easy, and the material flows out through the incline direction of row material chamber.
As shown in fig. 2 and 5, in the present embodiment, it is optimized that the heat sink 1 includes a cooling plate 102 having fins 103 that discharge heat into the ventilation air flow.
In the technical scheme, the cooling plate 102 is used for radiating heat of the nozzle structure, the fins 103 are added on the cooling plate 102, and the outer surface area of the cooling plate 102 is increased, so that the aim of improving the heat exchange efficiency is fulfilled.
As shown in fig. 2 and 5, in the present embodiment, it is preferable that the cooling plates 102 have a plurality and are spaced apart along the length direction of the first passage 101.
In this technical scheme, through a plurality of cooling plates 102 to can improve the radiating effect to the nozzle structure, increase of service life.
As shown in fig. 3, in this embodiment, the second channel is preferably provided with a flow guiding tube 5, the upper end of which penetrates through and extends out of the second channel, and the end of the flow guiding tube 5 extending out of the second channel extends into the first channel 101 and is movably connected with the first channel 101.
In this technical scheme, through setting up honeycomb duct 5 between first passageway 101 and last cavity 20, honeycomb duct 5 can be with the circulation of high accuracy guide printing material for place printing this material and block up because of the compartment, in order to ensure to carry more smoothly to the material.
As shown in fig. 2 and 3, in the present embodiment, the outer diameter of the first channel 101 of the flow guiding tube 5 is preferably provided with an external thread 6, and the inner diameter of the first channel 101 is provided with an internal thread 61 adapted to the external thread 6.
In this technical scheme, through set up external screw thread 6 on the external diameter that honeycomb duct 5 is located first passageway 101 to set up in external screw thread 6 suited internal screw thread 61 at the internal diameter of first passageway 101, make honeycomb duct 5 be located the one end and the first passageway 101 threaded connection of first passageway 101, when need dismantle or overhaul radiating portion 1, break away from its honeycomb duct 5 and first passageway 101 screw thread and be connected, so convenient to use, convenient to detach or overhaul.
As shown in fig. 3, in the present embodiment, the heat dissipation portion 1 is preferably externally provided with a fan 7 for heat dissipation.
In the technical scheme, the heat dissipation fan 7 is arranged outside the radiator, so that the temperature of the feeding channel is greatly reduced, the material is prevented from being softened, the temperature of the part above the heater is low enough, and the fed low-hardness high-elasticity material can be effectively transferred before entering the heater.
The embodiments of the present application and the features of the embodiments may be combined without conflict, and the present application is not limited to the specific embodiments described above, which are merely illustrative, not restrictive, and many forms may be made by those of ordinary skill in the art, without departing from the spirit of the present application and the scope of the claims, which are also within the protection of the present application.
Claims (10)
1. A nozzle structure of a 3D printer, comprising:
a heat dissipation part (1), wherein a first channel (101) penetrating up and down is arranged on the heat dissipation part (1);
the heating part (2) is arranged at the bottom of the heat dissipation part (1), the heating part (2) is provided with a second channel which penetrates through the heating part from top to bottom and is communicated with the first channel (101), and the second channel consists of an upper chamber (20) and a lower chamber (21);
a nozzle (3) provided on a lower port of the lower chamber (21);
wherein the nozzle (3) and the heating part (2) are of an integrated structure, and when the heating part (2) heats, the material in the lower chamber (21) is melted and flows out from the preheated nozzle (3).
2. A nozzle structure of a 3D printer according to claim 1, wherein,
the heating part (2) comprises a shell (22) and a heat conductor (23) arranged in the shell (22),
the second channel is located on the heat conductor (23), the heat conductor (23) is located on the outer diameter of the lower chamber (21) and is provided with electric heating pipes (24), and the electric heating pipes (24) are distributed around the outer diameter of the lower chamber (21).
3. A nozzle structure of a 3D printer according to claim 2, wherein,
the heat conductor (23) is located at the position of the electric heating pipe (24) and is provided with a heat conducting ring (4), the electric heating pipe (24) is spirally extended in the length direction and arranged on the outer diameter of the lower cavity (21) and is in contact with the heat conducting ring (4), and the electric heating pipe (24) is used for providing heat energy from heat to the heat conducting ring (4).
4. A nozzle structure of a 3D printer according to claim 3,
the heat conducting ring (4) is made of metal.
5. A nozzle structure of a 3D printer according to claim 1, wherein,
the discharge cavity of the nozzle (3) extends downwards along with the reduction of the width, and the inner diameter of the feed port of the discharge cavity is the same as that of the lower cavity (21).
6. A nozzle arrangement of a 3D printer according to claim 1, characterized in that the heat sink (1) comprises a cooling plate (102) with fins (103) for discharging heat into the ventilation air flow.
7. The nozzle structure of a 3D printer according to claim 6, wherein the cooling plates (102) are plural and are spaced apart along the length of the first channel (101).
8. The nozzle structure of the 3D printer according to claim 1, wherein a flow guiding pipe (5) is disposed in the second channel, the upper end of the flow guiding pipe penetrates through and extends out of the second channel, and an end of the flow guiding pipe (5) extending out of the second channel extends into the first channel (101) and is movably connected with the first channel (101).
9. The nozzle structure of the 3D printer according to claim 8, wherein the flow guiding pipe (5) is provided with an external thread (6) on the outer diameter of the first channel (101), and the inner diameter of the first channel (101) is provided with an internal thread (61) adapted to the external thread (6).
10. A nozzle structure of a 3D printer according to claim 6, characterized in that the heat dissipation part (1) is externally provided with a fan (7) for heat dissipation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222607596.4U CN218892226U (en) | 2022-09-30 | 2022-09-30 | Nozzle structure of 3D printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222607596.4U CN218892226U (en) | 2022-09-30 | 2022-09-30 | Nozzle structure of 3D printer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218892226U true CN218892226U (en) | 2023-04-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222607596.4U Active CN218892226U (en) | 2022-09-30 | 2022-09-30 | Nozzle structure of 3D printer |
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| CN (1) | CN218892226U (en) |
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2022
- 2022-09-30 CN CN202222607596.4U patent/CN218892226U/en active Active
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