CN110605852A - Nozzle with regional accurate heating function - Google Patents

Nozzle with regional accurate heating function Download PDF

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Publication number
CN110605852A
CN110605852A CN201810615363.4A CN201810615363A CN110605852A CN 110605852 A CN110605852 A CN 110605852A CN 201810615363 A CN201810615363 A CN 201810615363A CN 110605852 A CN110605852 A CN 110605852A
Authority
CN
China
Prior art keywords
nozzle
heating
wall
shape
housing
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
Application number
CN201810615363.4A
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Chinese (zh)
Inventor
金晴宇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jin Qingyu
Original Assignee
Link Medical Technology (shanghai) Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Link Medical Technology (shanghai) Co Ltd filed Critical Link Medical Technology (shanghai) Co Ltd
Priority to CN201810615363.4A priority Critical patent/CN110605852A/en
Publication of CN110605852A publication Critical patent/CN110605852A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00Additive 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
    • B29C64/20Apparatus for additive manufacturing; Details thereof or accessories therefor
    • B29C64/205Means for applying layers
    • B29C64/209Heads; Nozzles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B33ADDITIVE MANUFACTURING TECHNOLOGY
    • B33YADDITIVE 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
    • B33Y30/00Apparatus 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)
  • Ink Jet (AREA)

Abstract

The invention discloses a nozzle with a region accurate heating function, which comprises a nozzle body and a heating device, wherein the upper part of the nozzle body is provided with a machine head joint, the lower part of the nozzle body is provided with a spray hole and a spray hole wall, the machine head joint is connected with a printer head, the heating device is sleeved on the outer side of the spray hole wall and is fixedly connected with the spray hole wall, and the lower end of the heating device is flush with the lower end of the spray hole. Through above-mentioned technical scheme, realized the accurate heating function in specific area, not only can heat the orifice wall, make printing liquid can keep good molten state, but also can provide the heat and make the lower floor that prints melt completely, and it is integrative to fuse completely with new spun printing liquid, and the efficient has avoided fusing not good phenomenon appearance between upper and the lower floor.

Description

Nozzle with regional accurate heating function
Technical Field
The invention relates to the field of 3D printing, in particular to a nozzle with a region accurate heating function.
Background
FDM is a shorthand form of "Fused deposition Model" and means Fused deposition modeling. In popular terms, the material is melted into liquid state by high temperature, is extruded by a printing head and then is solidified, and finally is arranged in a three-dimensional space to form a three-dimensional object. The article that present 3D printed the preparation because the lower floor prints the back temperature drop fast and direct solidification that finishes, when printing the upper story, the lower floor that has solidified can't be heated the melting completely, leads to between the thin layer that the upper strata printed and the lower floor can not fuse as an organic whole, the not good phenomenon of interbedding fusion appears, the phenomenon of interlayer peeling off appears under the extreme condition, these all can make the tensile strength reduction of the target object of printing. At present, the situation is mainly improved by heating the printing bottom plate or the printing cavity, but in practical application, the improvement effect is not good, and the phenomenon of poor interlayer fusion still occurs. Some people improve these phenomena by placing and printing in different directions, but cannot be applied to all target printed objects.
Disclosure of Invention
In view of the above disadvantages of interlayer fusion in the current 3D printing technology, the present invention provides a nozzle with a precise heating function for an area, which enables good fusion of an upper layer and a lower layer during printing.
In order to achieve the above purpose, the embodiment of the invention adopts the following technical scheme:
the utility model provides a take regional accurate heating function's nozzle, includes nozzle body and heating device, the upper portion of nozzle body is equipped with the aircraft nose junction, and the lower part is equipped with orifice and orifice wall, the aircraft nose junction is connected with the printer aircraft nose, heating device cup joints in the orifice wall outside and with orifice wall fixed connection, heating device's lower extreme and the lower extreme parallel and level of orifice, under the normal conditions, the orifice wall all is the cone, and is sharper more to the orifice, and the orifice wall is thinner, and heat loss is faster, can make like this from the temperature decline of the printing liquid of blowout in the orifice and can't make the lower floor that prints melt completely. Set up a heating device in jet orifice department, realized specific area's accurate heating function, not only can heat the jet orifice wall, make printing liquid can keep good molten condition, but also can provide the heat and make the lower floor that prints melt completely, and it is integrative completely to fuse with new spun printing liquid, and the not good phenomenon of fusing between upper strata and the lower floor has been avoided to the efficient appears.
Preferably, the heating device comprises a shell, a heating body, a temperature sensor and a transmission interface, wherein a heat transfer hole which penetrates through the upper surface and the lower surface of the shell and is matched with the shape of the spray hole wall is arranged in the middle area of the shell, the heat transfer hole is sleeved with the spray hole wall, the heating body and the temperature sensor are arranged on the inner side of the lower surface of the shell, the transmission interface is arranged on the shell and is provided with an inner interface and an outer interface, the inner interface is electrically connected with the heating body and the temperature sensor, the outer interface is electrically connected with an external control system, the heating body is used for heating, the temperature sensor is used for detecting the temperature of the lower surface of the heating body to prevent the temperature from being too high and the lower layer from melting to influence the printing effect, or prevent the temperature from being too low and not playing a role of melting the lower layer, the shell is used for providing support for, the transmission interface is used for connecting the heating body and the temperature sensor with an external control system and transmitting data, so that an operator can preset the heating temperature and observe the temperature state and the like.
Preferably, the heating body is arranged as a heating wire or a heating rod, so that the price is low and the effect is good.
Preferably, the heating wire or rod is arranged in a ring shape, so that the temperature around the spray hole is more uniform.
Preferably, the shell is made of one of copper, copper alloy, stainless steel, titanium and titanium alloy, and the materials have high melting point and good thermal conductivity and are convenient for heat transmission.
Preferably, the heating body and the temperature sensor are alternately arranged, so that the temperature detected by the temperature sensor is more uniform.
Preferably, the heating device is fixedly connected with the spray hole wall through an anchor, a rivet, a screw, a press fit or a mortise and tenon structure, and the processes are simple and the stability is good.
Preferably, the lower part of the wall of the spray hole is thickened, for example, the wall thickness is set to be 0.5-5mm, the size of the spray hole is kept unchanged, the wall volume of the spray hole is increased, more heat can be accommodated, the heat loss at the spray hole is reduced, and the temperature at the spray hole is more stable.
Preferably, the spray hole wall is set to be one of a cone shape, a trapezoid shape, an inverted trapezoid shape, a rectangle shape, a reverse-up shape, a round-head cone shape or an irregular trapezoid shape, the cone shape is a shape commonly used by existing nozzles, and the trapezoid shape, the inverted trapezoid shape, the rectangle shape, the reverse-up shape, the round-head cone shape or the irregular trapezoid shape is a preferable condition of thickening setting of the spray hole wall.
The implementation of the invention has the advantages that: the invention provides a nozzle with a regional accurate heating function, which comprises a nozzle body and a heating device, wherein the upper part of the nozzle body is provided with a machine head joint, the lower part of the nozzle body is provided with a jet orifice and a jet orifice wall, the machine head joint is connected with a printer head, the heating device is sleeved outside the jet orifice wall and is fixedly connected with the jet orifice wall, and the lower end of the heating device is flush with the lower end of the jet orifice.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a nozzle with a zone precise heating function according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a nozzle hole wall of a nozzle with a zone precise heating function according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a nozzle hole wall of a nozzle with a zone precise heating function according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a nozzle hole wall of a nozzle with a zone precise heating function according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a nozzle hole wall of a nozzle with a zone precise heating function according to an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a nozzle hole wall of a nozzle with a zone precise heating function according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a nozzle hole wall of a nozzle with a region precise heating function according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, a nozzle with a region precise heating function includes a nozzle body 1 and a heating device 2, wherein a head joint 11 is provided at an upper portion of the nozzle body 1, a nozzle hole 12 and a nozzle hole wall 13 are provided at a lower portion of the nozzle body, the head joint 11 is connected to a printer head, the heating device 2 is sleeved outside the nozzle hole wall 13 and is fixedly connected to the nozzle hole wall 13, and a lower end of the heating device 2 is flush with a lower end of the nozzle hole 12, in general, the nozzle hole wall 13 is a cone, and the thinner the nozzle hole wall 13 is when the nozzle hole 12 is more pointed, the faster the heat loss is, so that the temperature of printing liquid ejected from the nozzle hole 12 is reduced and the printed lower layer cannot be completely melted. The heating device 2 is arranged at the position of the spray hole 12, so that the precise heating function of a specific area is realized, the spray hole wall 13 can be heated, the printing liquid can be kept in a good melting state, the printed lower layer can be completely melted by providing heat, the printing liquid and the newly sprayed printing liquid are completely fused into a whole, and the phenomenon of poor fusion between the upper layer and the lower layer is efficiently avoided.
As shown in fig. 1, the heating device 2 includes a housing 21, a heating body 22, a temperature sensor 23 and a transmission interface 24, the central region of the housing 21 is provided with a heat transfer hole penetrating the upper and lower surfaces of the housing 21 and matching with the shape of the nozzle hole wall 13, the heat transfer hole is sleeved with the nozzle hole wall 13, the heating body 22 and the temperature sensor 23 are arranged inside the lower surface of the housing 21, the transmission interface 24 is arranged on the housing 21 and is provided with an inner interface and an outer interface, the inner interface is electrically connected with the heating body 22 and the temperature sensor 23, the outer interface is electrically connected with an external control system, the heating body 22 is used for heating, the temperature sensor 23 is used for detecting the temperature of the lower surface of the heating body 22 to prevent the lower layer from being too high and melting to affect the printing effect, or prevent the temperature from being too low and not playing a role of melting the lower layer, the housing 21 is used, and is used for transmitting the heat generated by the heating body 22 to the environment outside the housing 21, and the transmission interface 24 is used for connecting the heating body 22 and the temperature sensor 23 with an external control system and transmitting data, so that an operator can preset the heating temperature, observe the temperature state, and the like.
In some embodiments of the present invention, the heating body 22 is provided as a heating wire or a heating rod, which is cheap and effective.
In some embodiments of the invention, the heating wire or rod is arranged in a ring shape to make the temperature around the orifice 12 more uniform.
In some embodiments of the present invention, the material of the housing 21 is one of copper, copper alloy, stainless steel, titanium, and titanium alloy, which has a high melting point and a good thermal conductivity, and is convenient for transferring heat.
In some embodiments of the present invention, the heating body 22 and the temperature sensor 23 are alternately arranged, so that the temperature detected by the temperature sensor 23 is more uniform.
In some embodiments of the present invention, the heating device 2 is fixedly connected to the orifice wall 13 by an anchor, a rivet, a screw, a press fit, or a mortise and tenon structure, which is simple and stable.
In some embodiments of the present invention, the lower portion of the nozzle hole wall 13 is thickened, for example, the wall thickness is set to be 0.5-5mm, as shown in fig. 2-7, the size of the nozzle hole 12 is kept unchanged, the volume of the nozzle hole wall 13 is increased, more heat can be accommodated, the heat loss at the nozzle hole 12 is reduced, and the temperature at the nozzle hole 12 is more stable.
As shown in fig. 2 to 7, in some embodiments of the present invention, the nozzle hole wall 13 is configured as one of a cone, a trapezoid, an inverted trapezoid, a rectangle, a "t" shape, a rounded cone, or an irregular trapezoid, where the cone is a shape commonly used in an existing nozzle, and the trapezoid, the inverted trapezoid, the rectangle, the "t" shape, the rounded cone, or the irregular trapezoid is a preferred case where the nozzle hole wall 13 is thickened.
The implementation of the invention has the advantages that: the invention provides a nozzle with a regional accurate heating function, which comprises a nozzle body and a heating device, wherein the upper part of the nozzle body is provided with a machine head joint, the lower part of the nozzle body is provided with a jet orifice and a jet orifice wall, the machine head joint is connected with a printer head, the heating device is sleeved outside the jet orifice wall and is fixedly connected with the jet orifice wall, and the lower end of the heating device is flush with the lower end of the jet orifice.
The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention disclosed herein are intended to be covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims (9)

1. The utility model provides a take regional accurate heating function's nozzle, the upper end of nozzle is equipped with the aircraft nose junction, and the lower part is equipped with orifice and orifice wall, the aircraft nose junction is connected with the printer aircraft nose, its characterized in that still includes heating device, heating device cup joints in the orifice wall outside and with orifice wall fixed connection, heating device's lower extreme and the lower extreme parallel and level of orifice.
2. The nozzle with the area precise heating function as claimed in claim 1, wherein the heating device comprises a housing, a heating body, a temperature sensor and a transmission interface, the central area of the housing is provided with a heat transfer hole which penetrates through the upper and lower surfaces of the housing and is matched with the shape of the wall of the spray hole, the heat transfer hole is sleeved with the wall of the spray hole, the heating body and the temperature sensor are arranged on the inner side of the lower surface of the housing, the transmission interface is arranged on the housing and is provided with an inner interface and an outer interface, the inner interface is electrically connected with the heating body and the temperature sensor, and the outer interface is electrically connected with an external control system.
3. Nozzle with area precise heating function according to claim 2, characterized in that the heating body is provided as a heating wire or heating rod.
4. Nozzle with area precision heating function according to claim 3, characterized in that the heating wire or rod is arranged in a ring.
5. The nozzle with the function of precisely heating areas as claimed in claim 2, wherein the material of the housing is one of copper, copper alloy, stainless steel, titanium and titanium alloy.
6. Nozzle with area precise heating function according to claim 2, characterized in that said heating body and temperature sensor are arranged alternately.
7. The nozzle with the function of precisely heating areas as claimed in claim 1, wherein the heating means is fixedly connected to the nozzle wall by means of an anchor, rivet, screw, press fit or mortise and tenon joint structure.
8. The nozzle with the function of accurately heating areas as claimed in any one of claims 1 to 7, wherein the lower part of the nozzle hole wall is thickened.
9. The nozzle with region precise heating function according to any one of claims 1 to 7, wherein the nozzle wall is provided in one of a tapered shape, a trapezoidal shape, an inverted trapezoidal shape, a rectangular shape, a reverse-inverted-T shape, a rounded-head cone shape, or an irregular trapezoidal shape.
CN201810615363.4A 2018-06-14 2018-06-14 Nozzle with regional accurate heating function Pending CN110605852A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810615363.4A CN110605852A (en) 2018-06-14 2018-06-14 Nozzle with regional accurate heating function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810615363.4A CN110605852A (en) 2018-06-14 2018-06-14 Nozzle with regional accurate heating function

Publications (1)

Publication Number Publication Date
CN110605852A true CN110605852A (en) 2019-12-24

Family

ID=68887970

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810615363.4A Pending CN110605852A (en) 2018-06-14 2018-06-14 Nozzle with regional accurate heating function

Country Status (1)

Country Link
CN (1) CN110605852A (en)

Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203371792U (en) * 2013-07-25 2014-01-01 詹政运 Nozzle structure
CN104118121A (en) * 2014-07-25 2014-10-29 张海洋 Anti-blocking printing spraying head of FDM three-dimensional printer
CN203957361U (en) * 2014-06-20 2014-11-26 句容利威尔电器有限公司 Low heat radiation 3D printing head
CN105235218A (en) * 2015-11-11 2016-01-13 中国科学院重庆绿色智能技术研究院 Extrusion head device based on fused deposition modeling technology
CN105252773A (en) * 2015-11-19 2016-01-20 梁智明 Hot end device of desktop-level FDM (frequency-division multiplexing) 3D printer
CN105415692A (en) * 2016-01-12 2016-03-23 山东捷动智能装备有限公司 Fused deposition type cooling printing spray head and printing method of 3D printer
CN205685756U (en) * 2016-06-16 2016-11-16 苟敬东 A kind of pay-off of 3D printer
CN106426912A (en) * 2016-11-23 2017-02-22 湖南省睿度科技有限公司 Cyclic heating high efficiency 3D printer nozzle device
CN206025171U (en) * 2016-07-15 2017-03-22 杭州时印科技有限公司 A intelligent control by temperature change shower nozzle for 3D prints
CN206124226U (en) * 2016-10-19 2017-04-26 拓伴三维科技(上海)有限公司 3D printer nozzle with inside cooling function
CN106738913A (en) * 2016-12-13 2017-05-31 广州中国科学院先进技术研究所 A kind of new 3D printing head
CN206703526U (en) * 2017-05-18 2017-12-05 四川建筑职业技术学院 A kind of increasing material manufacturing electromagnetic induction heating type printing head device
CN206749042U (en) * 2017-05-19 2017-12-15 深圳市捷泰技术有限公司 A kind of 3D printer and its heater
CN207028190U (en) * 2017-04-06 2018-02-23 四川建筑职业技术学院 A kind of nozzle arrangements of 3D printer
CN208359485U (en) * 2018-06-14 2019-01-11 麦递途医疗科技(上海)有限公司 A kind of nozzle of the accurate heating function in region

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203371792U (en) * 2013-07-25 2014-01-01 詹政运 Nozzle structure
CN203957361U (en) * 2014-06-20 2014-11-26 句容利威尔电器有限公司 Low heat radiation 3D printing head
CN104118121A (en) * 2014-07-25 2014-10-29 张海洋 Anti-blocking printing spraying head of FDM three-dimensional printer
CN105235218A (en) * 2015-11-11 2016-01-13 中国科学院重庆绿色智能技术研究院 Extrusion head device based on fused deposition modeling technology
CN105252773A (en) * 2015-11-19 2016-01-20 梁智明 Hot end device of desktop-level FDM (frequency-division multiplexing) 3D printer
CN105415692A (en) * 2016-01-12 2016-03-23 山东捷动智能装备有限公司 Fused deposition type cooling printing spray head and printing method of 3D printer
CN205685756U (en) * 2016-06-16 2016-11-16 苟敬东 A kind of pay-off of 3D printer
CN206025171U (en) * 2016-07-15 2017-03-22 杭州时印科技有限公司 A intelligent control by temperature change shower nozzle for 3D prints
CN206124226U (en) * 2016-10-19 2017-04-26 拓伴三维科技(上海)有限公司 3D printer nozzle with inside cooling function
CN106426912A (en) * 2016-11-23 2017-02-22 湖南省睿度科技有限公司 Cyclic heating high efficiency 3D printer nozzle device
CN106738913A (en) * 2016-12-13 2017-05-31 广州中国科学院先进技术研究所 A kind of new 3D printing head
CN207028190U (en) * 2017-04-06 2018-02-23 四川建筑职业技术学院 A kind of nozzle arrangements of 3D printer
CN206703526U (en) * 2017-05-18 2017-12-05 四川建筑职业技术学院 A kind of increasing material manufacturing electromagnetic induction heating type printing head device
CN206749042U (en) * 2017-05-19 2017-12-15 深圳市捷泰技术有限公司 A kind of 3D printer and its heater
CN208359485U (en) * 2018-06-14 2019-01-11 麦递途医疗科技(上海)有限公司 A kind of nozzle of the accurate heating function in region

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Effective date of registration: 20210318

Address after: 200237 Room 502, No.60, meilongliu village, Xuhui District, Shanghai

Applicant after: Jin Qingyu

Address before: 201806 2nd floor, building 4, No. 4585, Baoqian Road, Jiading District, Shanghai

Applicant before: MEDITOOL MEDICAL TECHNOLOGY (SHANGHAI) Co.,Ltd.