CN103737929B - A kind of 3D printer two axle scanner condenser lens cold wind blower - Google Patents
A kind of 3D printer two axle scanner condenser lens cold wind blower Download PDFInfo
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- CN103737929B CN103737929B CN201310700284.0A CN201310700284A CN103737929B CN 103737929 B CN103737929 B CN 103737929B CN 201310700284 A CN201310700284 A CN 201310700284A CN 103737929 B CN103737929 B CN 103737929B
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- China
- Prior art keywords
- condenser lens
- ventilating duct
- scanner
- printer
- cold wind
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- 238000007664 blowing Methods 0.000 claims abstract description 24
- 239000000463 material Substances 0.000 claims description 3
- 230000013011 mating Effects 0.000 claims 1
- SBIBMFFZSBJNJF-UHFFFAOYSA-N selenium;zinc Chemical compound [Se]=[Zn] SBIBMFFZSBJNJF-UHFFFAOYSA-N 0.000 claims 1
- 239000007789 gas Substances 0.000 description 22
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 12
- 238000001816 cooling Methods 0.000 description 6
- 229910052757 nitrogen Inorganic materials 0.000 description 6
- PFNQVRZLDWYSCW-UHFFFAOYSA-N (fluoren-9-ylideneamino) n-naphthalen-1-ylcarbamate Chemical compound C12=CC=CC=C2C2=CC=CC=C2C1=NOC(=O)NC1=CC=CC2=CC=CC=C12 PFNQVRZLDWYSCW-UHFFFAOYSA-N 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 238000005245 sintering Methods 0.000 description 3
- 239000011261 inert gas Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000013517 stratification Methods 0.000 description 1
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- Accessory Devices And Overall Control Thereof (AREA)
Abstract
The invention discloses a kind of 3D printer two axle scanner condenser lens cold wind blower, include the air blowing lid (2) be arranged on scanner (1), at the through hole (4) lid (2) being provided with and coordinating with condenser lens (3) and supply scanner (1) printing opacity of blowing, described air blowing lid (2) is provided with gas hole (2 1) and ventilating duct (2 2), described gas hole (2 1) and ventilating duct (2 2) are communicated with, described ventilating duct (2 2) around through hole (4) weeks ringwise, the air outlet of described ventilating duct (2 2) (2 5) is looped around condenser lens (3) around and towards minute surface.
Description
[technical field]
The present invention relates to a kind of cooling device of 3D printer two axle scanner condenser lens.
[background technology]
3D printer can be realized by a variety of technology, and present industrialization aspect is most popular is belong to laser powder sintering technology (SLS).And according to the difference of printing precision, economic scheme can be selected, as two axle scanner+condenser lenses realize guide laser bundle, this scheme focal beam spot is thick, and precision is general, but structure is simple, economical reliable.Requiring high place in precision very fineness, is generally the structure used costly, 3 axle scanners+plane protection window mirror.This scheme registration, hot spot is meticulous, but complex structure, expensive.Very high temperature can be produced when realizing laser powder sintering by two axle scanner+condenser lens schemes, condenser lens is provided with at the output of scanner, condenser lens focuses on the effect of workbench except parallel laser light beam that handlebar scanner passes over, also has the effect of protection scanner inner body, condenser lens can not only be outside at scanner by air barrier high for temperature, and the dust making printer produce at work also intercepts at scanner outside, but dust is easy to be stacked into condenser lens surface like this, and at high temperature powder can in condenser lens surface sintering stratification, the printing opacity of condenser lens will be affected like this, be unfavorable for that scanner scans, so generally all need installation cooling device on the scanner, general employing cools the mode that minute surface is blown, not only can lower the temperature to minute surface, and the clean of minute surface can be kept, protective layer is formed at minute surface, dust is prevented to be attached on minute surface, but present blowing cooling device is all generally adopt gas hole directly to blow facing to minute surface, will produce like this dead angle blow less than, not fine to the protection of condenser lens.
[summary of the invention]
In order to solve deficiency of the prior art, provide a kind of cooling device of protection of blowing without dead angle to condenser lens, the technical solution used in the present invention is:
A kind of 3D printer two axle scanner condenser lens cold wind blower, include installation air blowing lid on the scanner, at the through hole covering and be provided with and coordinate with condenser lens and supply scanner printing opacity of blowing, cover in described air blowing and be provided with gas hole and ventilating duct, described gas hole is communicated with ventilating duct, around through hole one week ringwise, the air outlet of described ventilating duct to be looped around around condenser lens and towards minute surface described ventilating duct.
Described ventilating duct and have difference in height between gas hole connectivity part and the air outlet of ventilating duct.
Described air blowing lid comprises upper cover and lower cover, described upper cover is fixing on the scanner, lower cover and upper cover are tightly connected, within one week, annular groove is provided with around through hole at described upper cover, within one week, be provided with the annular boss matched with groove shapes at described lower cover around through hole, described groove and boss matched in clearance form ventilating duct.
Described boss is tapered.
Described gas hole at least comprises a pair and is symmetrical arranged.
Described ventilating duct is gap.
The air outlet of described ventilating duct is bottom condenser lens.
Also include the gripper shoe of fixing lid of blowing.
Described condenser lens be ZnSe material F ?θ focusing lens.
Described gas hole is communicated with gas blow pipe.
Adopt the condenser lens cooling device of described structure above, because gas outlet is the annulus be located at around condenser lens, the air-flow of such blowout is exactly blow to uniformly minute surface from the mirror boundary of condenser lens, the dead angle produced when avoiding air blowing, better to minute surface protection, difference in height is provided with between ventilating duct air outlet and gas hole, the stop being subject to ventilating duct inwall after such gas hole air-flow enters ventilating duct can make air-flow first flow around ventilating duct, make the air-flow in ventilating duct fill full after the air-flow that blows to minute surface from the air outlet of ventilating duct more even.
[accompanying drawing explanation]
Fig. 1 is topology view of the present invention.
Fig. 2 is explosive view of the present invention.
Fig. 3 is top view of the present invention.
Fig. 4 be in Fig. 3 A ?A direction sectional view.
Fig. 5 is B place zoomed-in view in Fig. 4.
Fig. 6 be in Fig. 4 C ?the sectional view in C direction.
Fig. 7 is D place zoomed-in view in Fig. 6.
Fig. 8 is superstructure figure.
Fig. 9 is lower cover structure figure.
[detailed description of the invention]
3D printer scans cooling device as depicted in figs. 1 and 2, the opening of scanner 1 Output of laser be provided with condenser lens 3(adopt on two axle scanners F ?θ mirror, F ?θ mirror be minute surface be cambered surface, F ?θ mirror adopt be that zinc selenide (ZnSe) material is made), scanner 1 is equipped with cold wind blower, cold wind blower includes air blowing lid 2, is connected with gripper shoe 5 bottom air blowing lid 2, and air blowing lid 2 is fixed on printer support by gripper shoe 5.Through hole 4 is provided with as shown in Figures 4 to 7 on air blowing lid 2, through hole 4 mates with condenser lens 3, blow afloat lid 2 is provided with gas hole 2 ?1, gas hole 2 ?1 preferably symmetrically arranged one or more pairs of, gas hole 2 ?1 be communicated with ventilating duct 2 ?2, ventilating duct 2 ?2 to be located on air blowing lid 2 in gap, gas hole 2 ?1 air-flow sent can enter ventilating duct 2 ?2, ventilating duct 2 ?2 be annular and around through hole 4 one weeks, ventilating duct 2 ?2 air outlet 2 ?5 is located at and through hole 4 inwall is looped around around condenser lens 3 and towards the minute surface of condenser lens 3, ventilating duct 2 ?2 with gas hole 2 ?1 place be communicated with and ventilating duct 2 ?2 air outlet 2 ?have difference in height between 5 (air outlet is in above gas hole or venthole is in above air outlet, owing to adopting nitrogen in actual use, and nitrogen is heavier than air easily to sink, so optimal selection is for being located at air outlet above gas hole), gas hole 2 ?1 face ventilating duct 2 ?2 inwalls, such gas hole 2 ?1 blowout air-flow just first by ventilating duct 2 ?2 inwalls resistances flow to surrounding, so just make air flow energy fill full ventilating duct 2 ?2, then air-flow will from ventilating duct 2 ?2 air outlet 2 ?5 to blow out, due to ventilating duct 2 ?2 blowing mouth be looped around condenser lens 3 around, so the air-flow blown on condenser lens 3 minute surface blows to condenser lens 3 minute surface from minute surface surrounding, and due to air-flow ventilating duct 2 ?be full of uniformly in 2, so the air-flow blown on minute surface also blows to uniformly minute surface around condenser lens 3, such guarantee do not have dead angle blow less than, in order to ensure the air-flow covering minute surface as much as possible blown on condenser lens, just need by ventilating duct 2 ?2 air outlet 2 ?5 be located at as far as possible near condenser lens 3 bottom (because F ?the curved middle outwardly convex of minute surface of θ mirror, air outlet 2 ?5 will make air outlet 2 ?5 as far as possible concordant with minute surface arcwall face edge exactly near condenser lens 3 bottom).
A kind of embodiment of the present invention be ventilating duct 2 ?2 with air blowing lid 2 in a global design.Another embodiment is as shown in Fig. 2 to Fig. 9, air blowing lid 2 comprise upper cover 2 ?3 and lower cover 2 ?4, as shown in Figure 8 upper cover 2 ?3 around through hole within 4 one weeks, be provided with annular groove 2 ?3 ?1, as shown in Figure 9 lower cover 2 ?4 around through hole within 4 one weeks, be provided with groove 2 ?3 ?1 annular boss mated 2 ?4 ?1, lower cover 2 ?4 with upper cover 2 ?3 to be tightly connected, boss 2 ?4 ?1 be located at groove 2 ?3 ?in 1, boss 2 ?4 ?1 with groove 2 ?3 ?the gap that formed of 1 matched in clearance just define ventilating duct 2 ?2, in order to make air-flow ventilating duct 2 ?in 2 flowing more smooth and easy, by boss 2 ?4 ?1 be designed to taper, groove 2 ?3 ?1 be also the shape matched with it, such ventilating duct 2 ?2 will in skewed, ventilating duct 2 ?2 air outlets 2 ?5 to arrange circular arc chamfering airflow more smooth and easy.
Gas hole 2 ?be connected with gas blow pipe 6 on 1; usually adopt in gas blow pipe 6 and pass into nitrogen; because nitrogen is inert gas; and easily collect; so effect and the environmental protection and energy saving of protection condenser lens can not only be played, because nitrogen is larger than the weight of air, so nitrogen can sink; make printer form inert gas environment, printed part so just can be prevented at high temperature not easily oxidized.
Claims (9)
1. a 3D printer two axle scanner condenser lens cold wind blower, include the air blowing lid (2) be arranged on scanner (1), at the through hole (4) lid (2) being provided with and coordinating with condenser lens (3) and supply scanner (1) printing opacity of blowing, it is characterized in that: on described air blowing lid (2), be provided with gas hole (2 ?1) and ventilating duct (2 ?2), described gas hole (2 ?1) and ventilating duct (2 ?2) are communicated with, described ventilating duct (2 ?2) around through hole (4) weeks ringwise, the air outlet of described ventilating duct (2 ?2) (2 ?5) is looped around condenser lens (3) around and towards minute surface, described air blowing lid (2) comprises upper cover (2 ?3) and lower cover (2 ?4), described upper cover (2 ?3) is fixed on scanner (1), lower cover (2 ?4) and upper cover (2 ?3) are tightly connected, annular groove (2 ?3 ?1) within (4) one weeks, is provided with around through hole at described upper cover (2 ?3), within (4) one weeks, be provided with and the annular boss of groove (2 ?3 ?1) mating shapes (2 ?4 ?1) around through hole at described lower cover (2 ?4), described groove (2 ?3 ?1) and boss (2 ?4 ?1) matched in clearance forms ventilating duct (2 ?2).
2. a kind of 3D printer two axle scanner condenser lens cold wind blower according to claim 1, is characterized in that: the air outlet of described described ventilating duct (2 ?2) and gas hole (2 ?1) connectivity part and ventilating duct (2 ?2) has difference in height between (2 ?5).
3. a kind of 3D printer two axle scanner condenser lens cold wind blower according to claim 2, is characterized in that: described boss (2 ?4 ?1) is tapered.
4. a kind of 3D printer two axle scanner condenser lens cold wind blower according to claim 2, is characterized in that: described gas hole (2 ?1) at least comprises a pair and is symmetrical arranged.
5. a kind of 3D printer two axle scanner condenser lens cold wind blower according to claim 2, is characterized in that: described ventilating duct (2 ?2) is in gap.
6. a kind of 3D printer two axle scanner condenser lens cold wind blower according to claim 1, is characterized in that: the air outlet of described ventilating duct (2 ?2) (2 ?5) is near condenser lens (3) bottom.
7. a kind of 3D printer two axle scanner condenser lens cold wind blower according to claim 1, is characterized in that: the gripper shoe (5) also including fixing lid (2) of blowing.
8. a kind of 3D printer two axle scanner condenser lens cold wind blower according to claim 1, is characterized in that: the F that described condenser lens (3) is ZnSe material ?θ focusing lens.
9. a kind of 3D printer two axle scanner condenser lens cold wind blower according to claim 1, is characterized in that: on described gas hole (2 ?1), be communicated with gas blow pipe (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310700284.0A CN103737929B (en) | 2013-12-17 | 2013-12-17 | A kind of 3D printer two axle scanner condenser lens cold wind blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310700284.0A CN103737929B (en) | 2013-12-17 | 2013-12-17 | A kind of 3D printer two axle scanner condenser lens cold wind blower |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103737929A CN103737929A (en) | 2014-04-23 |
| CN103737929B true CN103737929B (en) | 2015-09-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310700284.0A Active CN103737929B (en) | 2013-12-17 | 2013-12-17 | A kind of 3D printer two axle scanner condenser lens cold wind blower |
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| CN (1) | CN103737929B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106392073B (en) * | 2016-10-31 | 2018-11-23 | 重庆大学 | Selective laser sintering melting unit |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016102970A1 (en) * | 2014-12-23 | 2016-06-30 | Renishaw Plc | Additive manufacturing apparatus and methods |
| JP6833431B2 (en) | 2016-09-29 | 2021-02-24 | キヤノン株式会社 | Stereolithography equipment, stereolithography method and stereolithography program |
| JP6786332B2 (en) | 2016-09-29 | 2020-11-18 | キヤノン株式会社 | Stereolithography equipment, stereolithography method and stereolithography program |
| JP6849365B2 (en) | 2016-09-29 | 2021-03-24 | キヤノン株式会社 | Stereolithography equipment, stereolithography method and stereolithography program |
| CN113042758A (en) * | 2021-02-03 | 2021-06-29 | 苏州双恩智能科技有限公司 | Cooling of 3D printer field lens, edulcoration system and 3D printer |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005034155B3 (en) * | 2005-07-21 | 2006-11-16 | Eos Gmbh Electro Optical Systems | Lens for focusing electromagnetic radiation in forming layers in three-dimensional rapid prototyping includes a heating element in the exit window |
| CN202411419U (en) * | 2012-02-24 | 2012-09-05 | 湖南华曙高科技有限责任公司 | Selective laser sintering (SLS) window mirror protection device |
| CN103111756B (en) * | 2013-02-05 | 2015-09-09 | 余振新 | The laser optical path guidance system of laser sintering and moulding equipment |
| CN103302781B (en) * | 2013-06-26 | 2016-05-25 | 磐纹科技（上海）有限公司 | Be applied to fan-free cooling device and the FDM high speed 3D printer of 3D printer |
| CN203697484U (en) * | 2013-12-17 | 2014-07-09 | 招銮 | Two-shaft scanner lens air blowing cooling device of 3D (three-dimensional) printing machine |
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2013
- 2013-12-17 CN CN201310700284.0A patent/CN103737929B/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106392073B (en) * | 2016-10-31 | 2018-11-23 | 重庆大学 | Selective laser sintering melting unit |
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| CN103737929A (en) | 2014-04-23 |
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Effective date of registration: 20190904 Address after: 2010 900 North Side of Building 7, Shanghai International Industrial Design Center, 3000 Yixian Road, Baoshan District, Shanghai Patentee after: Shanghai Yingpu Three-Dimensional Printing Technology Co., Ltd. Address before: Room 303, 3rd floor, back building of Guangyuan South Road Science and Technology Venture Center, Xiaolan Town, Zhongshan City, Guangdong Province Co-patentee before: He Desheng Patentee before: Zhao Luan |