CN214562969U - 3D prints shower nozzle structure - Google Patents
3D prints shower nozzle structure Download PDFInfo
- Publication number
- CN214562969U CN214562969U CN202120442840.9U CN202120442840U CN214562969U CN 214562969 U CN214562969 U CN 214562969U CN 202120442840 U CN202120442840 U CN 202120442840U CN 214562969 U CN214562969 U CN 214562969U
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- Prior art keywords
- nozzle
- printing
- gear
- thread
- spray head
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 239000000463 material Substances 0.000 claims abstract description 69
- 238000007639 printing Methods 0.000 claims abstract description 67
- 230000007246 mechanism Effects 0.000 claims abstract description 25
- 239000007921 spray Substances 0.000 claims description 36
- 238000003860 storage Methods 0.000 claims description 32
- 239000002131 composite material Substances 0.000 claims description 17
- 238000001514 detection method Methods 0.000 claims description 17
- 238000010146 3D printing Methods 0.000 claims description 9
- 239000011347 resin Substances 0.000 claims description 7
- 229920005989 resin Polymers 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 239000002041 carbon nanotube Substances 0.000 claims description 5
- 229910021393 carbon nanotube Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 4
- 239000004917 carbon fiber Substances 0.000 claims description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 4
- 230000003287 optical effect Effects 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 4
- 229920003023 plastic Polymers 0.000 claims description 4
- 239000004696 Poly ether ether ketone Substances 0.000 claims description 3
- JUPQTSLXMOCDHR-UHFFFAOYSA-N benzene-1,4-diol;bis(4-fluorophenyl)methanone Chemical compound OC1=CC=C(O)C=C1.C1=CC(F)=CC=C1C(=O)C1=CC=C(F)C=C1 JUPQTSLXMOCDHR-UHFFFAOYSA-N 0.000 claims description 3
- 229920002530 polyetherether ketone Polymers 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 8
- 230000009286 beneficial effect Effects 0.000 abstract description 7
- 230000017525 heat dissipation Effects 0.000 abstract description 4
- 238000005406 washing Methods 0.000 abstract description 4
- 230000009471 action Effects 0.000 abstract description 2
- 230000003670 easy-to-clean Effects 0.000 abstract 1
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 25
- 230000008569 process Effects 0.000 description 16
- 238000004140 cleaning Methods 0.000 description 9
- 239000007788 liquid Substances 0.000 description 5
- 229920001169 thermoplastic Polymers 0.000 description 5
- 239000000835 fiber Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000002923 metal particle Substances 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000003733 fiber-reinforced composite Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000011417 postcuring Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000011208 reinforced composite material Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000011232 storage material Substances 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 238000009281 ultraviolet germicidal irradiation Methods 0.000 description 1
Images
Abstract
A3D printing nozzle structure is characterized by comprising a nozzle and a rotating mechanism, wherein an internal thread structure is arranged in the nozzle, the rotating mechanism drives the nozzle to rotate, and a printing material in the nozzle is driven by the internal thread to disturb the flow of the printing material to form turbulence and spirally extrude the turbulence; the arrangement of the internal thread structure is beneficial to increasing the contact surface area and enhancing the heat dissipation effect, the arrangement of the rotating mechanism is beneficial to controlling the consistency of the flow rate and the direction, the two mechanisms act together to ensure that the printing material is rotationally extruded under the action of friction force, so that the material performance is improved, and meanwhile, the nozzle rotates forwards and backwards to realize that the internal flow channel is easy to clean and avoid blockage; the embodiment of the utility model provides a solve among the prior art radiating effect poor, the difficult washing of nozzle and the poor problem of material property.
Description
Technical Field
The utility model relates to a vibration material disk field especially relates to a 3D prints shower nozzle structure.
Background
The 3D printing technology (also called additive manufacturing) is applied to strategic and civil fields such as aerospace, automobiles, medical treatment, military and the like due to the advantages of customizability, complex printed product structure, material saving and the like. A series of national policy documents such as "fourteen five" plan "all aim to highlight high-end equipment, especially intelligent manufacturing mainly based on additive manufacturing, and to develop preferentially.
The existing 3D printing process still has the defects of long printing time, poor heat dissipation effect, difficult cleaning of nozzles, poor material performance and the like. Especially, when printing long fiber composite, the prior art extrudes through screw rod propelling movement mode and leads to the fibre to stir disconnected easily, the direction uniformity is poor, heat dispersion is poor. The key problem is solved, so that the printing of high-performance products is facilitated, the high-quality rapid development of related industries is promoted, and the method has important strategic significance for building and manufacturing strong countries.
The novel printing nozzle structure is urgent and necessary to solve the key problems.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a 3D prints sprinkler structure to solve the problem that radiating effect is poor, the difficult washing of nozzle and material property is poor in the prior art.
In order to solve the technical problem, the utility model discloses a realize like this:
the utility model provides a 3D prints sprinkler structure for 3D prints, its characterized in that, includes shower nozzle and rotary mechanism, be equipped with the internal thread structure in the shower nozzle, rotary mechanism drives the shower nozzle is rotatory, the material is printed in the shower nozzle and the stirring is printed the material and is flowed and form torrent and spiral extrusion under the internal thread drives.
Optionally, the spray head has a hollow cylinder and cone combined structure with the same wall thickness, and the inner surface of the spray head is provided with spiral threads with the same tooth-shaped structure;
the tooth-shaped structure can be a rectangular thread, a trapezoidal thread, a sawtooth thread, an arc thread or a triangular thread;
the nozzle of the spray head is a round hole with certain specification and size so that different printing materials can be extruded out.
Optionally, the spray head is connected with a storage box through a bearing, and the spray head rotates around the central axis of the spray head relative to the storage box;
the material storage box is communicated with the interior of the spray head;
the storage box is provided with a detection device and a control switch, and the detection device can be an optical sensor or a pressure sensor;
the detection device is communicated with the control switch and controls the control switch to be turned on or turned off according to the printing material detection condition;
the rotating mechanism is connected with the material storage box.
Optionally, the rotating mechanism comprises a gear, a motor and a meshing gear, the fixed end of the motor is connected with the material storage box, the output end of the motor is connected with the gear, and the meshing gear is connected with the spray head;
the gear is meshed with the meshing gear;
the motor drives the gear to rotate, and the gear drives the meshing gear to rotate so as to drive the spray head to rotate.
Optionally, the printing material is plastic or composite or metal, such as PLA or PEEK or photosensitive resin or carbon fiber composite or carbon nanotube composite.
In the embodiment of the utility model, by arranging the internal thread structure of the nozzle, the contact area between the printing material and the inner surface of the nozzle can be effectively increased, thereby ensuring better heat dissipation performance and easier curing; the rotating mechanism is arranged to control the rotating speed of the spray head so as to adjust the spraying speed; the internal thread structure and the rotating mechanism are matched with each other, so that the resistance of the printing material in the nozzle is increased, and the printing material is extruded by laminar flow-to-turbulent flow through friction rotation, so that the direction consistency of the fiber composite material is better, and the performance is better; residual attachments in the spray head can be effectively removed by controlling the motor to rotate forwards and backwards, so that the problem of difficult cleaning and easy blockage is solved; meanwhile, the nozzle is simple in structure, and printing materials are widely limited to waste materials and granular materials and are various in form; this technique is innovative on prior art and is increased rotatory screw thread, the embodiment of the utility model provides a solve among the prior art radiating effect poor, the difficult washing of nozzle and the poor problem of material performance.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 shows a cross-sectional view of a 3D printing head structure provided by an embodiment of the present invention;
description of reference numerals:
10. a spray head; 20. a rotation mechanism; 21. a motor; 22. a gear; 23. a meshing gear; 30. a material storage box; 40. a detection device; 50. a control switch; 60. a bearing;
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, of the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
Referring to fig. 1, a 3D printing nozzle structure is used for 3D printing and is characterized by comprising a nozzle 10 and a rotating mechanism 20, wherein an internal thread structure is arranged in the nozzle 10, the rotating mechanism 20 drives the nozzle 10 to rotate, and a printing material in the nozzle 10 is driven by the internal thread to disturb the flow of the printing material to form a turbulent flow and to be spirally extruded.
In the embodiment of the utility model, by arranging the internal thread structure of the nozzle 10, the contact area between the printing material and the inner surface of the nozzle 10 can be effectively increased, so that the printing material has better heat dissipation performance and is easier to solidify; the rotating mechanism 20 is arranged to control the rotating speed of the nozzle 10 so as to adjust the spraying speed; the internal thread structure and the rotating mechanism are matched with each other, so that the resistance of the printing material in the nozzle 10 is increased, and the printing material is extruded by laminar-flow-to-turbulent flow through friction rotation, so that the direction consistency of the fiber composite material is better and the performance is better; residual attachments in the spray head can be effectively removed by controlling the motor 21 to rotate forwards and backwards, so that the problem of difficult cleaning and easy blockage is solved; meanwhile, the nozzle 10 has a simple structure, and printing materials are widely not limited to waste materials and granular materials and have various forms; this technique is innovative on prior art and is increased rotatory screw thread, the embodiment of the utility model provides a solve among the prior art radiating effect poor, the difficult washing of nozzle and the poor problem of material performance.
It should be noted that, in the embodiment of the present invention, the adopted principle is that the non-newtonian fluid has viscoelasticity, and has shearing force and friction force with the screw angular contact position, thereby driving the fluid to form turbulence, thereby better extruding under the action of rotating force, and having beneficial effect on improving material performance.
It should be noted that, in the embodiment of the present invention, the method can be used for 3D printing of various processes, for example: FDM printing process or SLA printing process or SLS printing process or SLM printing process or composite material printing;
wherein, in the embodiment of the utility model, the FDM printing process is to melt the thermoplastic plastics and then extrude the thermoplastic plastics through a nozzle for cooling and forming;
in the embodiment of the present invention, the SLA printing process is to eject a photosensitive material (e.g., photosensitive resin) through a nozzle and assist the uv irradiation post-curing molding;
wherein, in the embodiment of the utility model, the SLS printing process comprises the steps of spraying the metal particle material through a spray head and assisting laser direct sintering molding;
wherein, in the embodiment of the utility model, the SLM printing process is to spray the metal particle material through the spray head and assist the laser direct melting molding;
wherein, in the embodiment of the present invention, the printing material used in the composite material printing process is a composite material (e.g. fiber reinforced composite material, carbon nanotube reinforced composite material), the printing nozzle 10 has a particularly obvious effect on the material, the printed shape is a rotating shape, the heating is uniform, and the beneficial effect on the material performance improvement is achieved;
it should be noted that, in the embodiment of the present invention, in the prior art, the printing nozzle 10 has an internal smooth bore, and has a small resistance, which is beneficial to the ejection/extrusion of the printing material, but the printing material is extruded/ejected only by the auxiliary pressure, and the scheme adopts the thread rotation friction to extrude/eject the printing material;
wherein, in the embodiment of the utility model, the printing material has diversity, and the thermoplastic plastic can be waste material melted and then led into the storage box or aggregate melted and then led into the storage box, etc., thereby effectively saving the cost;
it should be noted that, in the embodiment of the present invention, the speed of the rotary nozzle 10 is adjusted to adjust the direction of the composite material reinforcing phase, so as to determine the strength of the printing molding sample according to the programming;
it should be noted that, in the embodiment of the present invention, the cleaning liquid can be sucked into the nozzle flow passage by adjusting the reverse rotation of the rotary nozzle 10, and the cleaning liquid is ejected by the forward rotation, so as to clean the nozzle, which has a beneficial effect of preventing the nozzle from being blocked;
it should be noted that, in the embodiment of the present invention, after the printing material is ejected, an auxiliary cooling device (such as a fan) is required or the printing speed is slow in the prior art, due to the threaded structure inside the nozzle 10, the contact area between the material and the nozzle 10 is increased, and the rotating mechanism is favorable for faster cooling and ensures uniform temperature, and has a beneficial effect on material performance improvement and printing efficiency;
optionally, the spray head 10 has a hollow cylinder and cone combined structure with the same wall thickness, and the inner surface of the spray head 10 is provided with helical threads with the same tooth-shaped structure;
the tooth-shaped structure can be a rectangular thread, a trapezoidal thread, a sawtooth thread, an arc thread or a triangular thread;
the nozzle of the spray head 10 is a round hole with certain specification and size so that different printing materials can be extruded out.
It should be noted that, in the embodiment of the present invention, different tooth shapes are set, which are different in shearing force and friction force according to different viscosity of printing material, so that the tooth shapes have different types;
it should be noted that, in the embodiment of the present invention, the circular hole at the conical tip of the nozzle has different specifications and is also replaced according to different printing requirements and material attributes, and the diameter of the circular hole of the nozzle can be 0.1mm, 0.2mm, 0.4mm, etc.;
optionally, the spray head 10 is connected with the storage tank 30 through a bearing 60, and the spray head 10 rotates around the central axis of the spray head 10 relative to the storage tank 30;
the storage box 30 is communicated with the interior of the spray head 10;
the storage box 30 is provided with a detection device 40 and a control switch 50, and the detection device 40 can be an optical sensor or a pressure sensor;
the detection device 40 is communicated with the control switch 50, and the detection device 40 controls the control switch 50 to be turned on or off according to the printing material detection condition;
the rotating mechanism 20 is connected with the storage box 30.
It should be noted that, in the embodiment of the present invention, the storage box 30 is used for storing the printing material and providing the printing material to the spray head 10;
it should be noted that, in the embodiment of the present invention, the storage box 30 is provided with the detection device 40, which can determine the amount of the printing material according to the setting, so as to open or close the control switch 50, and ensure that the storage materials of the printing material in the storage box 30 have the same volume, thereby realizing the uninterrupted printing;
it should be noted that, in the embodiment of the present invention, the storage box 30 is communicated with the inside of the spray head 10, so as to ensure that the printing material of the storage box 30 enters the spray head 10, and thus continuous supply is realized;
it should be noted that, in the embodiment of the present invention, the rotating mechanism 20 is connected to the storage box 30, and under the process condition that heating is required, the rotating mechanism 20 is connected to the storage box 30 through a heat insulation device, and the storage box 30 has a heat preservation effect;
optionally, the rotating mechanism 20 includes a gear 22, a motor 21, and a meshing gear 23, a fixed end of the motor 21 is connected to the storage box 30, an output end of the motor 21 is connected to the gear 22, and the meshing gear 23 is connected to the spray head 10;
the gear 22 is meshed with the meshing gear 23;
the motor 21 drives the gear 22 to rotate, and the gear 22 drives the meshing gear 23 to rotate so as to drive the spray head 10 to rotate.
It should be noted that, in the embodiment of the present invention, the gear 22 is engaged with the engaging gear 23 to rotate, and the motor 21 drives the nozzle to rotate, so that the structure is simple and the reliability is good;
optionally, the printing material is plastic or composite or metal, such as PLA or PEEK or photosensitive resin or carbon fiber composite or carbon nanotube composite.
It should be noted that, in the embodiment of the present invention, when the printing material is plastic, the printing material may be thermoplastic plastic or resin, the thermoplastic plastic includes PLA, ABS, PA, TPU, etc., and the resin includes photosensitive resin, epoxy resin, etc.; the composite material reinforcing phase can be carbon fiber, nylon, carbon nano tube and the like; the metal is metal powder particles of stainless steel, aluminum alloy, titanium alloy and the like.
The utility model discloses a theory of operation and working process as follows:
(1) opening the control switch 50, and allowing the printing materials to enter the storage box 30;
(2) after the printing material reaches the set value, the control switch 50 is closed;
(3) the rotating mechanism 20 drives the spray head 10 to rotate and extrude the printing material;
(4) the detection device 40 detects the material in the material storage box, and after the printing material is lower than the set value, the control switch 50 is turned on;
(5) controlling the rotating speed of the spray head 10 to adjust the printing speed, and moving the spray head 10 to form a printing workpiece;
(6) after printing is finished, the spray head 10 is placed in corresponding cleaning liquid, the spray head 10 rotates in the reverse direction to suck the cleaning liquid to clean the flow channel, and the cleaning liquid is sprayed out in the forward direction to finish cleaning.
It should be noted that, in this document, 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 an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention essentially or the portions contributing to the prior art can be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk), and includes a plurality of instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
The embodiments of the present invention have been described with reference to the accompanying drawings, but the present invention is not limited to the above-mentioned embodiments, which are only illustrative and not restrictive, and those skilled in the art can make many forms without departing from the spirit and scope of the present invention.
Claims (5)
1. The utility model provides a 3D prints shower nozzle structure for 3D prints, its characterized in that, including shower nozzle (10) and rotary mechanism (20), be equipped with internal thread structure in shower nozzle (10), rotary mechanism (20) drive shower nozzle (10) are rotatory, the material flow is printed in the disturbance under the internal thread drive to the material of printing in shower nozzle (10) forms the torrent and the spiral is extruded.
2. The 3D printing nozzle structure according to claim 1, wherein the nozzle (10) has a hollow cylinder and cone combined structure with the same wall thickness, and the inner surface of the nozzle (10) is provided with helical threads with the same tooth-shaped structure;
the tooth-shaped structure can be a rectangular thread, a trapezoidal thread, a sawtooth thread, an arc thread or a triangular thread;
the nozzle of the spray head (10) is a round hole with a certain specification and size so that different printing materials can be extruded out.
3. The 3D printing nozzle structure according to claim 1, wherein the nozzle (10) is connected with a storage tank (30) through a bearing (60), and the nozzle (10) rotates around a central axis of the nozzle (10) relative to the storage tank (30);
the storage box (30) is communicated with the interior of the spray head (10);
the storage box (30) is provided with a detection device (40) and a control switch (50), and the detection device (40) can be an optical sensor or a pressure sensor;
the detection device (40) is communicated with the control switch (50), and the detection device (40) controls the control switch (50) to be turned on or turned off according to the printing material detection condition;
the rotating mechanism (20) is connected with the storage box (30).
4. The 3D printing nozzle structure according to claim 3, wherein the rotating mechanism (20) comprises a gear (22), a motor (21) and a meshing gear (23), a fixed end of the motor (21) is connected with the storage box (30), an output end of the motor (21) is connected with the gear (22), and the meshing gear (23) is connected with the nozzle (10);
the gear (22) is meshed with the meshing gear (23);
the motor (21) drives the gear (22) to rotate, and the gear (22) drives the meshing gear (23) to rotate so as to drive the spray head (10) to rotate.
5. The 3D print head structure according to claim 1, wherein the printing material is plastic or composite or metal, such as PLA or PEEK or photosensitive resin or carbon fiber composite or carbon nanotube composite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120442840.9U CN214562969U (en) | 2021-03-01 | 2021-03-01 | 3D prints shower nozzle structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120442840.9U CN214562969U (en) | 2021-03-01 | 2021-03-01 | 3D prints shower nozzle structure |
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| Publication Number | Publication Date |
|---|---|
| CN214562969U true CN214562969U (en) | 2021-11-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120442840.9U Expired - Fee Related CN214562969U (en) | 2021-03-01 | 2021-03-01 | 3D prints shower nozzle structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114603874A (en) * | 2022-03-21 | 2022-06-10 | 西南科技大学 | Fused deposition modeling system and method |
| CN117301524A (en) * | 2023-10-07 | 2023-12-29 | 洛阳易普特智能科技有限公司 | Shower nozzle cleaning device and method of sand mold 3D printing equipment |
-
2021
- 2021-03-01 CN CN202120442840.9U patent/CN214562969U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114603874A (en) * | 2022-03-21 | 2022-06-10 | 西南科技大学 | Fused deposition modeling system and method |
| CN117301524A (en) * | 2023-10-07 | 2023-12-29 | 洛阳易普特智能科技有限公司 | Shower nozzle cleaning device and method of sand mold 3D printing equipment |
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Granted publication date: 20211102 |