CN105291434A - 3D printing equipment - Google Patents
3D printing equipment Download PDFInfo
- Publication number
- CN105291434A CN105291434A CN201510743018.5A CN201510743018A CN105291434A CN 105291434 A CN105291434 A CN 105291434A CN 201510743018 A CN201510743018 A CN 201510743018A CN 105291434 A CN105291434 A CN 105291434A
- Authority
- CN
- China
- Prior art keywords
- axis motion
- ultraviolet
- printing
- curing device
- ultraviolet source
- Prior art date
- 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.)
- Pending
Links
Abstract
The invention discloses 3D printing equipment. The 3D printing equipment comprises a storage device, a peristaltic pump, an extrusion head, an ultraviolet light curing device, a printing tray, an X-axis motion mechanism, a Y-axis motion mechanism, a Z-axis motion mechanism and a controller. A liquid photosensitive material is contained in the storage device. One end of the peristaltic pump is connected with the storage device through a pipeline, the other end of the peristaltic pump is connected with the extrusion head through a pipeline, the ultraviolet light curing device is connected with the extrusion head, the printing tray is located below the extrusion head, and the controller controls the peristaltic pump, the ultraviolet light curing device, the X-axis motion mechanism, the Y-axis motion mechanism and the Z-axis motion mechanism. Through the cooperation of the peristaltic pump and the extrusion head, liquid printing materials are conveyed and printed, and printing accuracy is high. The ultraviolet light curing device and the extrusion head are fixed together and kept synchronous in the operating process, and rapid curing is achieved while printing is conducted.
Description
Technical field
The present invention relates to 3D printing technique field, particularly a kind of 3D printing device.
Background technology
3D printing technique is a kind of rapid shaping technique, and it is based on mathematical model file, and use metal, plastics, inorganic material etc., carry out constructed object by the mode successively printed.
Fusion sediment rapid shaping (FDM) is the 3D printing technique of current main flow, and it is by thread heat-fusible materials heating and melting, gushes out by squeezing with the shower nozzle of a minute nozzle.From shower nozzle ejection after hot melt material fusing, be deposited on material that print job deck plate or front one deck solidified, temperature, lower than starting solidification after solidification temperature, forms final finished by the accumulation layer by layer of material.
The advantage of FDM technology is to manufacture simply, and operation expense is cheap, but its consumptive material used is filamentary material, and its temperature extruding silk material directly affects the quality of printout, and wire vent temperature cannot accurately control, and is difficult to reach printing precision requirement.
Summary of the invention
The object of the present invention is to provide a kind of 3D printing device, it can realize conveying, the printing of liquid printed material, and printing precision is high.
For achieving the above object, the present invention is by the following technical solutions:
A kind of 3D printing device, comprise accumulator, peristaltic pump, extruder head, ultraviolet curing device, print pallet, X-axis motion, Y-axis motion, Z axis motion and controller, liquid photosensitive liquid material is loaded with in described accumulator, one end of described peristaltic pump connects accumulator by pipeline, the other end connects extruder head by pipeline, described ultraviolet curing device is connected with described extruder head, described printing pallet is positioned at the below of described extruder head, described X-axis motion moves in the X-axis direction for driving described printing pallet, described Y-axis motion moves in the Y-axis direction for driving described printing pallet, described Z axis motion moves in the Z-axis direction for driving described extruder head and ultraviolet curing device, described controller is to described peristaltic pump, ultraviolet curing device, X-axis motion, Y-axis motion and Z axis motion control.
Further, described extruder head comprises main casing and nozzle, feed cavity is formed in described main casing, it offers charging aperture, described charging aperture is communicated with feed cavity, and connecting described peristaltic pump by pipeline, the inside of described nozzle is formed with discharging opening, and the upper end of described nozzle connects the lower end of described main casing.
Preferentially, described ultraviolet curing device comprises ultraviolet source, condenser lens and mounting rod, described ultraviolet source is fixedly connected with described main casing by mounting rod, the emitting light path that described condenser lens is arranged on described ultraviolet source is fixedly connected with ultraviolet source, the outgoing beam of described ultraviolet source forms a hot spot through after condenser lens, and described hot spot is positioned at immediately below described nozzle.
Preferentially, described ultraviolet curing device comprises shell, one group of ultraviolet source and reflector, described casing is located at outside described main casing, described ultraviolet source and reflector are located between shell and main casing, and described reflector is positioned at the below of ultraviolet source, the outgoing beam of described ultraviolet source forms a beams converge point after reflector reflection, and described beams converge point is positioned at immediately below described nozzle.
Preferentially, described ultraviolet curing device also comprises one group of ultraviolet light compensatory light, and described ultraviolet light compensatory light is around being arranged on the outer peripheral face of described shell.
Preferentially, described ultraviolet source adopts ultraviolet LED spot light, and its wavelength is 350 ~ 400nm.
After adopting technique scheme, the present invention is compared with background technology, and tool has the following advantages:
1, the present invention's coordinating by peristaltic pump and extruder head, realize the conveying of liquid printed material, printing, printing precision is high.
2, ultraviolet curing device and extruder head are fixed together by the present invention, keep synchronous, while printing, realize rapid curing in operation process.
3, ultraviolet curing device spot light of the present invention, encircled energy is high, is convenient to the rapid curing realizing printed material.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of embodiment one;
Fig. 2 is the structural representation of extruder head;
Fig. 3 is the structural representation of the ultraviolet curing device of embodiment one;
Fig. 4 is the overall structure schematic diagram of embodiment two;
Fig. 5 is the structural representation of the ultraviolet curing device of embodiment two;
Fig. 6 is the overall structure schematic diagram of embodiment three;
Fig. 7 is the structural representation of the ultraviolet curing device of embodiment three.
Fig. 8 is the structural representation of the ultraviolet curing device of embodiment four.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Embodiment one
Refer to Fig. 1, the invention discloses a kind of 3D printing device, comprise accumulator 1, peristaltic pump 2, extruder head 3, ultraviolet curing device 4, print pallet, X-axis motion, Y-axis motion, Z axis motion and controller, wherein:
Liquid photosensitive liquid material is loaded with in accumulator 1.In the present embodiment, photosensitive liquid material adopts photo-sensitive hydrogel material, and can certainly adopt the photosensitive liquid material of other types, the present invention is not specifically limited.The composition of photo-sensitive hydrogel material mainly comprises hydrogel, ultraviolet curable agent and functional material, hydrogel is as matrix material, ultraviolet curable agent is used for promoting under UV light-induced condition or controlling curing reaction, functional material is the material added according to concrete printed sample demand, as in order to show the pigment that color sample is added, in order to promote the fiber that sample strength is added.
Shown in figure 1, one end of peristaltic pump 2 connects accumulator 1 by pipeline, and the other end connects extruder head 3 by pipeline.
Coordinate shown in Fig. 1 and Fig. 2, extruder head 3 comprises main casing 31 and nozzle 32, wherein:
Be formed with feed cavity 311 in main casing 31, it offer charging aperture 312, charging aperture 312 is communicated with feed cavity 311, and connects peristaltic pump 2 by pipeline.
The inside of nozzle 32 is formed with discharging opening 321, and the upper end of nozzle 32 connects the lower end of main casing 31.
Shown in figure 3, ultraviolet curing device 4 comprises ultraviolet source 41, condenser lens 42 and mounting rod 43, wherein:
Ultraviolet source 41 is fixedly connected with main casing 31 by mounting rod 43.In the present embodiment, ultraviolet source 41 adopts ultraviolet LED spot light, and its wavelength is 350 ~ 400nm.
The emitting light path that condenser lens 42 is arranged on ultraviolet source 41 is fixedly connected with ultraviolet source 41.The outgoing beam of ultraviolet source 41 forms a hot spot A through after condenser lens 42, and hot spot A is positioned at immediately below nozzle 32.
Print the below that pallet is positioned at extruder head 3.
X-axis motion moves in the X-axis direction for driving printing pallet, and Y-axis motion moves in the Y-axis direction for driving printing pallet, and Z axis motion moves in the Z-axis direction for driving extruder head 3 and ultraviolet curing device 4.The concrete structure of X-axis motion, Y-axis motion, Z axis motion belongs to prior art, and the present invention repeats no more.
Controller controls peristaltic pump 2, ultraviolet curing device 4, X-axis motion, Y-axis motion and Z axis motion.
The course of work of the present embodiment 3D printing device is as follows:
1, controller control X-axis motion, Y-axis motion and Z axis motion move, and determine the position of extruder head 3 and printing pallet, namely determine to print coordinate position.
2, controller control peristaltic pump 2 works, and the photosensitive liquid material of liquid state is delivered to extruder head 3 by peristaltic pump 2, and photosensitive liquid material is extruded from nozzle 32.
3, photosensitive liquid material is extruded from nozzle 32 and after departing from nozzle 32, is dropped to printing pallet, and the hot spot A that now ultraviolet curing device 4 produces acts on photosensitive liquid material, photosensitive liquid material rapid curing.
4, repeat above-mentioned steps 1-3, print coordinate position at the next one and carry out operation.
Embodiment two
The present embodiment is from the difference of embodiment one: the structure of ultraviolet curing device 4 is different.
Coordinate shown in Fig. 4 and Fig. 5, in the present embodiment, ultraviolet curing device 4 comprises shell 41 ', one group of ultraviolet source 42 ' and reflector 43 ', wherein:
Shown in figure 5, shell 41 ' is sheathed on outside main casing 31.
Ultraviolet source 42 ' and reflector 43 ' are located between shell 41 ' and main casing 31, and reflector 43 ' is positioned at the below of ultraviolet source 42 '.Ultraviolet source 42 ' adopts ultraviolet LED spot light, and its wavelength is 350 ~ 400nm.The quantity of ultraviolet source 42 ' can be selected according to the job requirements such as print speed, curing efficiency, and the present invention is not specifically limited.
The outgoing beam of ultraviolet source 42 ' forms a beams converge point B after reflector 43 ' reflects, and beams converge point B is positioned at immediately below nozzle 32.
The course of work of the present embodiment 3D printing device is as follows:
1, controller control X-axis motion, Y-axis motion and Z axis motion move, and determine the position of extruder head 3 and printing pallet, namely determine to print coordinate position.
2, controller control peristaltic pump 2 works, and the photosensitive liquid material of liquid state is delivered to extruder head 3 by peristaltic pump 2, and photosensitive liquid material is extruded from nozzle 32.
3, photosensitive liquid material to be extruded and after departing from nozzle 32, drop to printing pallet, now photosensitive liquid material is positioned on beams converge point B just, and photosensitive liquid material realizes rapid curing under the irradiation of multichannel ultraviolet light beam from nozzle 32.
4, repeat above-mentioned steps 1-3, print coordinate position at the next one and carry out operation.
Embodiment three
Coordinate shown in Fig. 6 and Fig. 7, the difference of the present embodiment and embodiment one is: ultraviolet curing device 4 also comprises one group of ultraviolet light compensatory light 44 ', and ultraviolet light compensatory light 44 ' is around being arranged on the outer peripheral face of shell 41 '.
The course of work of the present embodiment 3D printing device is as follows:
1, controller control X-axis motion, Y-axis motion and Z axis motion move, and determine the position of extruder head 3 and printing pallet, namely determine to print coordinate position.
2, controller control peristaltic pump 2 works, and the photosensitive liquid material of liquid state is delivered to extruder head 3 by peristaltic pump 2, and photosensitive liquid material is extruded from nozzle 32.
3, photosensitive liquid material to be extruded and after departing from nozzle 32, drop to printing pallet, now photosensitive liquid material is positioned on beams converge point B just, and photosensitive liquid material realizes rapid curing under the irradiation of multichannel ultraviolet light beam from nozzle 32.
4, above-mentioned steps 1-3 is repeated, print coordinate position at the next one and carry out operation, open simultaneously and print the nearest ultraviolet light compensatory light 44 ' of coordinate position apart from upper one, after-sun is carried out to the upper one photosensitive liquid material printing coordinate position stacking, to ensure that solidification fully.
Embodiment four
The difference of the present embodiment and embodiment two is: ultraviolet curing device 4 is moveable structure.
Shown in figure 8, in the present embodiment, shell 41 ' is movably set in outside main casing 31, and ultraviolet source 42 ' and reflector 43 ' are fixedly installed on the inwall of shell 41 ', and such ultraviolet source 42 ' and reflector 43 ' can be synchronized with the movement with shell 41 '.
Shell 41 ' drives it to slide up and down by electric pushrod 45 ', like this after photosensitive liquid material is extruded from nozzle 32 and depart from nozzle 32, in the process of dropping, shell 41 ' is at the driving moved downward of electric pushrod 45 ', now beams converge point B is also along with moving downward, such beams converge point B and the photosensitive liquid material extruded synchronously decline, and can ensure that solidification fully.
The above; be only the present invention's preferably detailed description of the invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.
Claims (6)
1. a 3D printing device, it is characterized in that: comprise accumulator, peristaltic pump, extruder head, ultraviolet curing device, print pallet, X-axis motion, Y-axis motion, Z axis motion and controller, liquid photosensitive liquid material is loaded with in described accumulator, one end of described peristaltic pump connects accumulator by pipeline, the other end connects extruder head by pipeline, described ultraviolet curing device is connected with described extruder head, described printing pallet is positioned at the below of described extruder head, described X-axis motion moves in the X-axis direction for driving described printing pallet, described Y-axis motion moves in the Y-axis direction for driving described printing pallet, described Z axis motion moves in the Z-axis direction for driving described extruder head and ultraviolet curing device, described controller is to described peristaltic pump, ultraviolet curing device, X-axis motion, Y-axis motion and Z axis motion control.
2. a kind of 3D printing device as claimed in claim 1, it is characterized in that: described extruder head comprises main casing and nozzle, feed cavity is formed in described main casing, it offers charging aperture, described charging aperture is communicated with feed cavity, and connecting described peristaltic pump by pipeline, the inside of described nozzle is formed with discharging opening, and the upper end of described nozzle connects the lower end of described main casing.
3. a kind of 3D printing device as claimed in claim 2, it is characterized in that: described ultraviolet curing device comprises ultraviolet source, condenser lens and mounting rod, described ultraviolet source is fixedly connected with described main casing by mounting rod, the emitting light path that described condenser lens is arranged on described ultraviolet source is fixedly connected with ultraviolet source, the outgoing beam of described ultraviolet source forms a hot spot through after condenser lens, and described hot spot is positioned at immediately below described nozzle.
4. a kind of 3D printing device as claimed in claim 2, it is characterized in that: described ultraviolet curing device comprises shell, one group of ultraviolet source and reflector, described casing is located at outside described main casing, described ultraviolet source and reflector are located between shell and main casing, and described reflector is positioned at the below of ultraviolet source, the outgoing beam of described ultraviolet source forms a beams converge point after reflector reflection, and described beams converge point is positioned at immediately below described nozzle.
5. a kind of 3D printing device as claimed in claim 4, it is characterized in that: described ultraviolet curing device also comprises one group of ultraviolet light compensatory light, described ultraviolet light compensatory light is around being arranged on the outer peripheral face of described shell.
6. a kind of 3D printing device as described in claim 3 or 4, is characterized in that: described ultraviolet source adopts ultraviolet LED spot light, and its wavelength is 350 ~ 400nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510743018.5A CN105291434A (en) | 2015-11-04 | 2015-11-04 | 3D printing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510743018.5A CN105291434A (en) | 2015-11-04 | 2015-11-04 | 3D printing equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105291434A true CN105291434A (en) | 2016-02-03 |
Family
ID=55189574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510743018.5A Pending CN105291434A (en) | 2015-11-04 | 2015-11-04 | 3D printing equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105291434A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105815362A (en) * | 2016-05-09 | 2016-08-03 | 上海交通大学 | Three-dimensional food printer |
| CN105881906A (en) * | 2016-04-29 | 2016-08-24 | 广州捷和电子科技有限公司 | Extrusion device for 3D printer |
| CN106003715A (en) * | 2016-05-30 | 2016-10-12 | 西安交通大学 | Double-light-source ink jetting type printing sprayer with adjustable angle |
| CN107364114A (en) * | 2017-06-13 | 2017-11-21 | 深圳市中科德睿智能科技有限公司 | A kind of new 3D printer and its application method |
| CN108215152A (en) * | 2017-11-15 | 2018-06-29 | 广州中国科学院先进技术研究所 | A kind of light-source system of visible-light curing 3D printing |
| CN108264756A (en) * | 2018-01-25 | 2018-07-10 | 哈尔滨工业大学 | The 3D printing material and equipment of a kind of three-dimensional laser deposition modeling |
| CN110756805A (en) * | 2019-11-06 | 2020-02-07 | 北京科技大学 | 3D printing device for selective laser metal solidification and using method thereof |
| CN112867597A (en) * | 2018-09-26 | 2021-05-28 | 阿肯色州立大学托管会 | Resin extrusion printing head for 3D printing |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103009631A (en) * | 2011-09-22 | 2013-04-03 | 株式会社其恩斯 | Three-dimensional forming device and method, setting data creation device and program for the three-dimensional forming device |
| EP2617554A1 (en) * | 2012-01-17 | 2013-07-24 | Okka, Hakan | Apparatus for generating three-dimensional objects |
| US20150086728A1 (en) * | 2013-09-25 | 2015-03-26 | Hon Hai Precision Industry Co., Ltd. | Machining system and method for machining microstructure on light guide plate |
| CN104859149A (en) * | 2015-05-08 | 2015-08-26 | 杭州捷诺飞生物科技有限公司 | Rapid photocuring spray head for 3D printing device |
| CN104916378A (en) * | 2015-06-18 | 2015-09-16 | 西安交通大学 | Device and method for manufacturing dielectric constant gradient insulator based on 3D printing |
| CN104924617A (en) * | 2015-06-19 | 2015-09-23 | 西安交通大学 | Liquid dripping type photo-curing following printing system and liquid dripping type photo-curing following printing method |
| CN205130407U (en) * | 2015-11-04 | 2016-04-06 | 厦门强本科技有限公司 | 3D (three -dimensional) printing device |
-
2015
- 2015-11-04 CN CN201510743018.5A patent/CN105291434A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103009631A (en) * | 2011-09-22 | 2013-04-03 | 株式会社其恩斯 | Three-dimensional forming device and method, setting data creation device and program for the three-dimensional forming device |
| EP2617554A1 (en) * | 2012-01-17 | 2013-07-24 | Okka, Hakan | Apparatus for generating three-dimensional objects |
| US20150086728A1 (en) * | 2013-09-25 | 2015-03-26 | Hon Hai Precision Industry Co., Ltd. | Machining system and method for machining microstructure on light guide plate |
| CN104859149A (en) * | 2015-05-08 | 2015-08-26 | 杭州捷诺飞生物科技有限公司 | Rapid photocuring spray head for 3D printing device |
| CN104916378A (en) * | 2015-06-18 | 2015-09-16 | 西安交通大学 | Device and method for manufacturing dielectric constant gradient insulator based on 3D printing |
| CN104924617A (en) * | 2015-06-19 | 2015-09-23 | 西安交通大学 | Liquid dripping type photo-curing following printing system and liquid dripping type photo-curing following printing method |
| CN205130407U (en) * | 2015-11-04 | 2016-04-06 | 厦门强本科技有限公司 | 3D (three -dimensional) printing device |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105881906A (en) * | 2016-04-29 | 2016-08-24 | 广州捷和电子科技有限公司 | Extrusion device for 3D printer |
| CN105881906B (en) * | 2016-04-29 | 2018-10-02 | 广州捷和电子科技有限公司 | A kind of extrusion device for 3D printer |
| CN105815362A (en) * | 2016-05-09 | 2016-08-03 | 上海交通大学 | Three-dimensional food printer |
| CN105815362B (en) * | 2016-05-09 | 2019-01-11 | 上海交通大学 | food 3D printer |
| CN106003715A (en) * | 2016-05-30 | 2016-10-12 | 西安交通大学 | Double-light-source ink jetting type printing sprayer with adjustable angle |
| CN106003715B (en) * | 2016-05-30 | 2018-03-02 | 西安交通大学 | A kind of double light source ink jet type printing heads of adjustable angle |
| CN107364114A (en) * | 2017-06-13 | 2017-11-21 | 深圳市中科德睿智能科技有限公司 | A kind of new 3D printer and its application method |
| CN108215152B (en) * | 2017-11-15 | 2024-01-02 | 广州中国科学院先进技术研究所 | Light source system for visible light curing 3D printing |
| CN108215152A (en) * | 2017-11-15 | 2018-06-29 | 广州中国科学院先进技术研究所 | A kind of light-source system of visible-light curing 3D printing |
| CN108264756A (en) * | 2018-01-25 | 2018-07-10 | 哈尔滨工业大学 | The 3D printing material and equipment of a kind of three-dimensional laser deposition modeling |
| CN108264756B (en) * | 2018-01-25 | 2020-11-24 | 哈尔滨工业大学 | Three-dimensional laser deposition forming 3D printing material and equipment |
| CN112867597A (en) * | 2018-09-26 | 2021-05-28 | 阿肯色州立大学托管会 | Resin extrusion printing head for 3D printing |
| CN110756805A (en) * | 2019-11-06 | 2020-02-07 | 北京科技大学 | 3D printing device for selective laser metal solidification and using method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105291434A (en) | 3D printing equipment | |
| CN205130407U (en) | 3D (three -dimensional) printing device | |
| CN101837642B (en) | Method and device for rapid forming by combining electrostatic spinning technique | |
| CN105459397B (en) | A kind of drip-proof shower nozzle for fused glass pellet 3D printer | |
| CN104015368B (en) | The 3D printer that a kind of extruder head fracture automatically switches | |
| US8815141B2 (en) | Method for building three-dimensional models with extrusion-based additive manufacturing systems | |
| CN105643936A (en) | Three-dimensional full-color printer | |
| CN106493940B (en) | The 3D printer spray head of nozzle diameter real-time variable | |
| CN106975750A (en) | A kind of lf deposition modeling device and its operation method | |
| CN103448248B (en) | For the shaping 3D printer of presser device and face of photocuring 3D printer | |
| CN103737934A (en) | 3D (3-Dimensional) printer based on fused-deposition rapid prototyping technology and printing method thereof | |
| CN205310839U (en) | Full -color 3D printer | |
| CN201357575Y (en) | Rapid forming device combined with electrostatic spinning technology | |
| CN105127423A (en) | Selective laser melting three-dimensional printing device | |
| CN104890234A (en) | In-situ polymerization extrusion three-dimensional printer based on ring-opening polymerization of glycolide | |
| CN112622272B (en) | Prevent blockking up many wire rods formula fused deposition modeling 3D print head | |
| US20150165682A1 (en) | Three-dimensional printing apparatus and printing head module | |
| CN106541570B (en) | A kind of rapid molding device of inside and outside composite construction product | |
| CN109466061A (en) | A kind of more material 3D printing equipment based on electrohydraulic dynamic coupling spray printing | |
| CN111070665A (en) | Multi-needle direct-writing type 3D printer with submicron precision | |
| CN204431747U (en) | A kind of bi-motor wire feed 3D printer | |
| CN206689426U (en) | A kind of lf deposition modeling device | |
| CN204898074U (en) | Three -dimensional printing apparatus of SLM | |
| CN113500772A (en) | Laser 3D printing device | |
| CN110181809B (en) | Rapid 3D printing device for surface forming based on electrostatic spinning method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160203 |
|
| RJ01 | Rejection of invention patent application after publication |