CN109466058A - 3D printer cools down extractor fan - Google Patents
3D printer cools down extractor fan Download PDFInfo
- Publication number
- CN109466058A CN109466058A CN201811593159.3A CN201811593159A CN109466058A CN 109466058 A CN109466058 A CN 109466058A CN 201811593159 A CN201811593159 A CN 201811593159A CN 109466058 A CN109466058 A CN 109466058A
- Authority
- CN
- China
- Prior art keywords
- cooling
- cooling ring
- ring
- extractor fan
- outlet
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/10—Processes of additive manufacturing
- B29C64/106—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
- B29C64/118—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using filamentary material being melted, e.g. fused deposition modelling [FDM]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/30—Auxiliary operations or equipment
- B29C64/307—Handling of material to be used in additive manufacturing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Optics & Photonics (AREA)
Abstract
The present invention relates to 3D printing technique fields, more particularly to a kind of cooling extractor fan of 3D printer, including Photocopy Room, warm-up block, extrusion device and emission-control equipment, extrusion device includes heat block and extrusion spray head, the cooling extractor fan of this 3D printer further includes vortex tube, cooling ring and air pump, vortex tube includes high pressure gas import, cold air gas outlet and heat outlet, heat outlet is connected to by tracheae with warm-up block, high pressure gas import is connect by pipeline with air pump, the hollow pipeline of cooling ring in a ring, which is looped around, squeezes out spray head periphery, the cross-sectional area of the cavity at the both ends of cooling ring is greater than the cross-sectional area of the cavity in the middle section of cooling ring, the cavity of several connection cooling rings and the bleed-off passage of exterior space are equipped in the middle section of cooling ring, cooling ring one end is connected to by pipeline with emission-control equipment, the cooling ring other end It is connected to cold air outlet.This programme has the function of carrying out exhausting purification to Photocopy Room while cooling to melting consumptive material.
Description
Technical field
The present invention relates to 3D printing technique fields, and in particular to a kind of 3D printer cooling draft but device.
Background technique
Now, 3D printing technique is more and more mature, and operation strategies are also increasingly wider, and technique mainly has FDM (Fused
Deposition Modeling) technique Fused Deposition Modeling, Stereolithography (SLA), layer separated growth (LOM), select domain swash
Light powder sintered (SLS), shaped deposition form (SDM), the forming technique (Jetting Technoloy) based on injection, multiphase
Jet deposition (MJD) etc., wherein for desktop printer substantially based on FMD, structure is simple, low in cost, and the consumptive material used is big
Mostly based on ABS class material, consumptive material is fed mechanism after pre-heating drying and send heat block to spray head, in heat block plus
Consumptive material after heat fusing is squeezed out by spray head, and according to the contour motion after layering, the consumptive material for the molten state being extruded passes through spray head model
Solidify after crossing cooling, form one layer of printable layer, then print platform decline carries out next layer of printing, and finally consumptive material is viscous from level to level
It connects to form required entity, in actual print procedure, insufficient, upper one layer of the consumption often due to the consumptive material below spray head radiates
Material is fully cured not yet, and just then covering comes up next layer of consumptive material, is easy to cause model the problems such as deformation, collapse occur, sternly
Ghost image rings the printing effect of model, even results in printing failure.
In existing 3D printer heat dissipation solution, fan cooling is used mostly, but since fan is easy to lead in rotation
Spray head vibration is caused, so as to cause printing precision decline, in order to solve the problems, such as that fan causes spray head to shake, 103302781 A of CN
Patent of invention disclose a kind of fan-free cooling device, including go out to be set to annular tuyere near spray head be connected to the annular
Although the air pump of tuyere, the program solve spray head vibration problems, will be at model thin-wall construction but tuyere ejection air-flow is easy
Consumptive material blow off, meanwhile, the consumptive material after melting can generate the gas being harmful to the human body.
Summary of the invention
The purpose of the present invention is to provide a kind of cooling extractor fans of 3D printer, to beat the 3D printer based on FMD
Consumptive material when print is effectively cooled down, and prevents model from the defects of deformation, collapse occur.
A kind of cooling extractor fan of 3D printer, including Photocopy Room, warm-up block, extrusion device and emission-control equipment,
Extrusion device includes heat block and squeezes out spray head, further includes vortex tube, cooling ring and air pump, vortex tube include high pressure gas import,
Cold air gas outlet and heat outlet, heat outlet are connected to by tracheae with warm-up block, and high pressure gas import passes through pipeline and air pump
Connection, the hollow pipeline of cooling ring in a ring, which is looped around, squeezes out spray head periphery, and the cross-sectional area of the cavity at the both ends of cooling ring is big
In the cross-sectional area of the cavity in the middle section of cooling ring, the cavity and outside sky of several connection cooling rings are equipped in the middle section of cooling ring
Between bleed-off passage, cooling ring one end is connected to by pipeline with emission-control equipment, and the cooling ring other end is connected to cold air outlet.
The principle of base case of the present invention is:
The high pressure gas that air pump generates enters vortex tube high pressure gas import through conduit, and high pressure draught is in vortex tube by dynamic
Can exchange is separated into the different hot and cold two strands of air-flows of temperature, cold air, which flows through cold air outlet and enters cooling ring, makes cooling ring in low
Temperature state, hot gas flow through pipeline and enter warm-up block to consumptive material progress pre-heating drying, and the consumptive material of preheated drying is admitted to heating
Block is melted, the consumptive material after melting be extruded spray head extrusion stick in worktable upper surface, positioned at squeeze out spray head along week it is low
Warm cooling ring and the consumptive material in high temperature carry out heat exchange, make the reduction of consumptive material temperature, reach cooling purpose, due in cooling ring
The cavity cross section product of section is less than the cross-sectional area of cooling ring both ends cavity, when cold airflow flows through cooling ring middle section compared with areola
Internal pressure reduces to form negative pressure, and the negative pressure of formation will print indoor pernicious gas by bleed-off passage and suck inside cooling ring
Then cavity enters emission-control equipment through pipeline and is handled.
The beneficial effect that this programme generates is:
One, this programme passes through the consumptive material after cooling ring and melting by connecting cooling ring in vortex tube cold air outlet port
Carry out heat exchange to consumptive material carry out cooling treatment, with the prior art cooling down method is blowed to consumptive material compared with, we
Case will not generate the effect of power when cooling down to consumptive material to consumptive material, and consumptive material will not be made to generate mobile phenomenon, Bu Huiying
Ring printing precision.
Two, it imports warm-up block by the hot gas for generating vortex tube consumptive material is carried out to heat preceding pre-heating drying, to prevent
Explosion generates the viscosity of aeration between layers when the moisture content that may contain in consumptive material quickly heats in heating module, greatly
The big molding for weakening model, while damage model surface.Consumptive material is preheated using the thermal current of vortex tube in this way, is not needed
In addition special drying equipment is added, expense and the energy have been saved.
Three, the structure setting of different sizes by cooling ring internal cavities cross-sectional area, utilizes the air-flow after heat exchange
Pumping purification is carried out to Photocopy Room, takes full advantage of the gas of air pump generation.
Further, the optimization as basic scheme, the cooling ring are made of the metal material with thermal conductive resin, add
Fast heat exchanger effectiveness.
Further, the optimization as basic scheme, the cooling ring are made of metallic copper, and copper has good thermal conductivity.
Further, the optimization as basic scheme, the section of the cooling ring are hollow circle, have cooling ring big
Area accelerates exchange rate close to the melting consumptive material squeezed out.
Further, the optimization as basic scheme is arranged flow control valve in the hot outlet port of the vortex tube, is used to
Change the pressure in hot outlet port pipeline, and then adjust the flow-rate ratio of hot and cold air-flow, to adjust the temperature of hot and cold air-flow.
Further, the optimization as basic scheme, the opening direction of the bleed-off passage are directed to squeeze out spray head, make to squeeze out
The pernicious gas generated at spray head is quickly taken away, and harmful gases diffusion is prevented.
Detailed description of the invention
Fig. 1 is the schematic diagram of the cooling extractor fan embodiment of 3D printer of the present invention.
Fig. 2 is the cross-sectional view of cooling ring.
Fig. 3 is the A-A cross-sectional view of cooling ring.
Specific embodiment
It is further described below by specific embodiment:
Appended drawing reference in Figure of description includes: Photocopy Room 10, air pump 20, warm-up block 30, vortex tube 40, flow control
Valve 401 processed, heat block 501, squeezes out spray head 502, cooling ring 60, bleed-off passage 601, emission-control equipment 80 at extrusion device 50.
Embodiment is basic as shown in attached drawing 1, attached drawing 2, attached drawing 3:
3D printer cools down extractor fan, including Photocopy Room 10, air pump 20, warm-up block 30, vortex tube 40, extrusion device
50 and cooling ring 60, vortex tube 40 be set to 50 side of extrusion device and be fixedly connected with extrusion device 50, vortex tube 40 include height
Calm the anger import, cold air outlet and heat outlet, high pressure gas import connect by pipeline with air pump 20, heat outlet pass through tracheae and
Warm-up block 30 is connected to, and in order to adjust the temperature of hot and cold air-flow, flow control valve is arranged at the heat outlet of vortex tube 40
401, extrusion device 50 includes heat block 501 and squeezes out spray head 502, and the hollow becket of cooling ring 60 in a ring is set to
It squeezes out 502 periphery of spray head to be fixedly connected with extrusion device 50, cooling ring 60 is made of the metal material with thermal conductive resin, excellent
Metallic copper is selected, in order to accelerate the exchange rate of cooling ring 60 with the consumptive material of high-temperature fusion, the cross section of cooling ring 60 is set as
Hollow circle, the cross-sectional diameter of the hollow circular at the both ends of cooling ring 60 are greater than the cross of the middle section hollow circular of cooling ring 60
Diameter of section is equipped with the internal cavity of connection cooling ring 60 and the bleed-off passage 601 of exterior space in the middle section of cooling ring 60, cooling
60 one end of ring is connected to by pipeline with the emission-control equipment 80 outside Photocopy Room 10, the other end and the vortex tube 40 of cooling ring 60
Cold air outlet connection.
The course of work of the cooling extractor fan of 3D printer of the present invention is:
The high pressure gas that air pump 20 generates enters 40 high pressure gas import of vortex tube through conduit, and high pressure draught is in vortex tube 40
Be separated into the different hot and cold two strands of air-flows of temperature by exchange of kinetic energy, cold air flow through cold air outlet enter cooling ring 60 make it is cold
But ring 60 is in low-temperature condition, and hot gas, which flows through pipeline and enters warm-up block 30, carries out pre-heating drying to consumptive material, with prevent can in consumptive material
Explosion generates bubble and influences viscosity between layers when the moisture content that can contain quickly heats in heat block 501, cuts significantly
The molding of weak model, while damage model surface, the consumptive material of preheated drying is admitted to heat block 501 and is melted, after melting
Consumptive material be extruded spray head 502 extrusion stick in worktable upper surface, positioned at squeeze out 502 periphery of spray head low temperature cooling ring 60
Heat exchange is carried out with the consumptive material of high temperature, the heat of consumptive material is taken away, makes the reduction of consumptive material temperature, reaches cooling purpose.Due to cooling
The circular cavity diameter of section in 60 middle section of ring is less than the circular cavity diameter of section at 60 both ends of cooling ring, the entire formation of cooling ring 60
One venturi tube structure, the diameter of section smaller round cavity in 60 middle section of cooling ring are equivalent to the throat of Venturi tube,
Flow velocity quickening air pressure reduces to form negative pressure when cold airflow flows through throat, and the negative pressure of formation passes through bleed-off passage 601 for Photocopy Room 10
Interior pernicious gas sucks 60 circular cavity of cooling ring, while the gas temperature in cooling ring 60 Jing Guo heat exchange increases expansion,
The speed for flowing a gas through throat is further speeded up, and is accelerated to the pernicious gas adsorption capacity in Photocopy Room 10, is adsorbed
Pernicious gas flows to emission-control equipment 80 and is handled.
What has been described above is only an embodiment of the present invention, and the common sense such as well known specific structure and characteristic are not made herein in scheme
Excessive description.It, without departing from the structure of the invention, can be with it should be pointed out that for those skilled in the art
Several modifications and improvements are made, these also should be considered as protection scope of the present invention, these all will not influence what the present invention was implemented
Effect and patent practicability.The scope of protection required by this application should be based on the content of the claims, in specification
The records such as specific embodiment can be used for explaining the content of claim.
Claims (6)
1.3D printer cools down extractor fan, including Photocopy Room, warm-up block, extrusion device and emission-control equipment, squeezes out dress
Set comprising heat block and squeeze out spray head, it is characterised in that: the cooling extractor fan of this 3D printer further include vortex tube, cooling ring and
Air pump, vortex tube include high pressure gas import, cold air gas outlet and heat outlet, and heat outlet is connected by tracheae and warm-up block
Logical, high pressure gas import is connect by pipeline with air pump, and the hollow pipeline of cooling ring in a ring, which is looped around, squeezes out spray head periphery, cooling
The cross-sectional area of the cavity at the both ends of ring is greater than the cross-sectional area of the cavity in the middle section of cooling ring, if being equipped in the middle section of cooling ring
The cavity of cooling ring and the bleed-off passage of exterior space are led in involvement, and cooling ring one end is connected to by pipeline with emission-control equipment,
The cooling ring other end is connected to cold air outlet.
2. the cooling extractor fan of 3D printer according to claim 1, it is characterised in that: the cooling ring is by metal material
It is made.
3. the cooling extractor fan of 3D printer according to claim 2, it is characterised in that: the cooling ring is by metal copper
At.
4. the cooling extractor fan of 3D printer according to claim 3, it is characterised in that: the section of the cooling ring is circle
Shape.
5. the cooling extractor fan of 3D printer according to claim 1, it is characterised in that: in the hot outlet of the vortex tube
Flow control valve is arranged in mouth end.
6. the cooling extractor fan of 3D printer according to claim 1, it is characterised in that: the opening side of the bleed-off passage
To be directed to squeeze out spray head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811593159.3A CN109466058A (en) | 2018-12-25 | 2018-12-25 | 3D printer cools down extractor fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811593159.3A CN109466058A (en) | 2018-12-25 | 2018-12-25 | 3D printer cools down extractor fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109466058A true CN109466058A (en) | 2019-03-15 |
Family
ID=65677412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811593159.3A Pending CN109466058A (en) | 2018-12-25 | 2018-12-25 | 3D printer cools down extractor fan |
Country Status (1)
| Country | Link |
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| CN (1) | CN109466058A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102019122302A1 (en) * | 2019-08-20 | 2021-02-25 | Kumovis GmbH | Print head for an additive manufacturing system as well as an additive manufacturing system |
| CN112477129A (en) * | 2020-10-20 | 2021-03-12 | 大连理工大学 | Low-temperature electrofluid jet printing spray head device |
| CN113858620A (en) * | 2021-09-09 | 2021-12-31 | 广东动智技术有限公司 | 3D printing apparatus of disinfection robot shell |
| CN114274667A (en) * | 2021-12-22 | 2022-04-05 | 福建思嘉环保材料科技有限公司 | Wear-resisting three-dimensional decorative pattern processing preparation system of net cloth that presss from both sides |
| CN114734634A (en) * | 2022-04-19 | 2022-07-12 | 杭州正向增材制造技术有限公司 | Melt extrusion additive manufacturing spray head and additive manufacturing equipment |
| CN115253520A (en) * | 2022-08-19 | 2022-11-01 | 安徽省春谷3D打印智能装备产业技术研究院有限公司 | Purifier for vibration material disk |
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| CN106926458A (en) * | 2017-04-27 | 2017-07-07 | 朱明来 | 3D printing shower nozzle |
| CN207432796U (en) * | 2017-08-11 | 2018-06-01 | 安徽美客多维智能装备有限公司 | A kind of nozzle efficient radiating apparatus of 3D printer |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102019122302A1 (en) * | 2019-08-20 | 2021-02-25 | Kumovis GmbH | Print head for an additive manufacturing system as well as an additive manufacturing system |
| CN112477129A (en) * | 2020-10-20 | 2021-03-12 | 大连理工大学 | Low-temperature electrofluid jet printing spray head device |
| CN113858620A (en) * | 2021-09-09 | 2021-12-31 | 广东动智技术有限公司 | 3D printing apparatus of disinfection robot shell |
| CN113858620B (en) * | 2021-09-09 | 2024-01-23 | 唐山维真科技有限公司 | 3D printing equipment of disinfection robot shell |
| CN114274667A (en) * | 2021-12-22 | 2022-04-05 | 福建思嘉环保材料科技有限公司 | Wear-resisting three-dimensional decorative pattern processing preparation system of net cloth that presss from both sides |
| CN114734634A (en) * | 2022-04-19 | 2022-07-12 | 杭州正向增材制造技术有限公司 | Melt extrusion additive manufacturing spray head and additive manufacturing equipment |
| CN114734634B (en) * | 2022-04-19 | 2024-04-09 | 浙江正向增材制造有限公司 | Melt extrusion additive manufacturing spray head and additive manufacturing equipment |
| CN115253520A (en) * | 2022-08-19 | 2022-11-01 | 安徽省春谷3D打印智能装备产业技术研究院有限公司 | Purifier for vibration material disk |
| CN115253520B (en) * | 2022-08-19 | 2023-12-19 | 安徽省春谷3D打印智能装备产业技术研究院有限公司 | Purifying device for additive manufacturing |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190315 |
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| RJ01 | Rejection of invention patent application after publication |