CN104085111A - Multi-nozzle 3D printer and method for controlling speed and precision of multi-nozzle 3D printer - Google Patents

Multi-nozzle 3D printer and method for controlling speed and precision of multi-nozzle 3D printer Download PDF

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Publication number
CN104085111A
CN104085111A CN201410331490.3A CN201410331490A CN104085111A CN 104085111 A CN104085111 A CN 104085111A CN 201410331490 A CN201410331490 A CN 201410331490A CN 104085111 A CN104085111 A CN 104085111A
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China
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nozzle
printer
conveying pipeline
control
base
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CN201410331490.3A
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Chinese (zh)
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CN104085111B (en
Inventor
熊刚
沈震
刘学
王飞跃
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东莞中国科学院云计算产业技术创新与育成中心
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Abstract

The invention relates to the technical field of 3D printing and in particular relates to a multi-nozzle 3D printer and a method for controlling the speed and precision of the multi-nozzle 3D printer. The multi-nozzle 3D printer comprises a conveying pipeline, a connecting base, a turntable and a plurality of material extrusion nozzles with channels of different inner diameters, wherein the connecting base is fixed at the lower end of the conveying pipeline; the turntable is installed at the lower end of the connecting base and simultaneously can rotate around the axis relative to the connecting base; the plurality of material extrusion nozzles with channels of different inner diameters are installed at the lower end of the turntable; the conveying pipeline, the connecting base, the turntable and the interior of one material extrusion nozzle form a material transmission channel; the sectional area of silk jetted by a head is regulated and controlled by regulating the material extrusion nozzle forming the channel. The multi-nozzle 3D printer can control the printing speed and precision, increases the overall printing speed under the condition of ensuring the requirement of precision and can be applied to head structures and control of 3D printers.

Description

A kind of multiinjector 3D printer and speed and accuracy control method

Technical field

The present invention relates to 3D printing technique field, especially a kind of multiinjector 3D printer and speed and accuracy control method.

Background technology

3D prints, i.e. the one of RP technique, and it carries out the processing of layering discretization by software 3D mathematical model, then uses powdery metal or the plastics etc. can adhesive material, constructs entity by the mode of successively piling up.3D printing technique belongs to one and adds formula manufacture category, is different from traditional formula that subtracts and manufactures category, can better save raw materials for production.Manufacturing under the promotion requiring towards personalized and specificity service, 3D prints and has started to be applied in the aspects such as mould generates, personalized product is produced, medical, military.Believe in the near future, 3D printer can be come into popular family, is our live and work service.

Common 3D printing technique has fuse deposition technique, it is by thread heat-fusible materials heating and melting, squeeze and gush out by the shower nozzle with a micro-channel, from nozzle ejection, be deposited on workbench, temperature starts to solidify after lower than solidification temperature, finally forms finished product by the accumulation layer by layer of material.Shower nozzle is wherein exactly a core component, but the material extrusion nozzle inside diameter cross sectional shape of the printing head of conventional 3D printer only has fixing circle, the given volume of unit interval inner nozzle spray silk.Non-adjustable due to nozzle inside diameter area of section, we can not control printing precision and the speed of 3D printer, but for different printing purposes and different print areas, need different printing precision and speed.Even same model, also there is different required precisions at model inside and edge.3D printer nozzle internal diameter cross sectional shape based on current is all circular, can not accomplish for different models or the print speed of same model zones of different and the control of precision.

Summary of the invention

One of technical problem that the present invention solves is that the 3D printer nozzle internal diameter cross sectional shape based on current is all circular, can not accomplish the present situation for different models or the print speed of same model zones of different and the control of precision, a kind of multiinjector 3D printer is provided, can regulates print speed and precision.

Two of the technical problem that the present invention solves is that the 3D printer nozzle internal diameter cross sectional shape based on current is all circular, can not accomplish the present situation for different models or the print speed of same model zones of different and the control of precision, provide a kind of can be according to speed and the accuracy control method of printing demand control print speed and precision.

The technical scheme that the present invention one of solves the problems of the technologies described above is:

Include conveying pipeline; It is characterized in that: also include and connect multiple material extrusion nozzles that base, rotating disk and passage internal diameter vary in size, connect the lower end that base is fixed on conveying pipeline, rotating disk is arranged on the lower end that connects base, rotating disk can rotate with respect to connecting base around axle simultaneously, and the material extrusion nozzle that multiple passage internal diameters vary in size is installed on the lower end of rotating disk; Conveying pipeline, connection base, rotating disk and a certain material extrusion nozzle interior form material transmission channel; The material extrusion nozzle that forms passage by adjustment regulates and controls the sectional area of shower nozzle spray silk.

In described connection base, be provided with motor, can drive dial rotation.

Multiple material extrusion nozzles that passage internal diameter varies in size are removably evenly installed on the lower end of rotating disk.

Described connection base is having the cylinder groove identical with conveying pipeline internal channel internal diameter size with the junction of conveying pipeline, and rotating disk also has the cylinder groove identical with conveying pipeline internal channel internal diameter size at installation material extrusion nozzle place; An expedite material channel of the common formation of the internal channel of the material extrusion nozzle in working position and conveying pipeline internal channel.

The center of gravity of described material extrusion nozzle inner passage section shape and the center of gravity of conveying pipeline inner passage section shape are positioned on the same axle perpendicular to material extrusion nozzle and conveying pipeline inner passage section.

Connect base inside and contain heating element heater, the material of heating conveying Pipe transfer, is molten condition.

Two the technical scheme that the present invention solves the problems of the technologies described above is:

Described print speed regulate and control method is:

Print speed V=K*S*L; Wherein S is the sectional area of the actual spray silk of nozzle, and L is unit printing-forming area, and K is the constant relevant with printer;

The actual spray silk sectional area S of nozzle and the printing-forming area L of unit determine charging rate, and affect hot melt speed; Charging rate and hot melt speed determine print speed jointly;

Form a signal by the change of S and L and control print speed, regulate and control the charging rate of shower nozzle conveying pipeline;

Described precision regulate and control method is: according to the different demands of printing precision, adjust print speed to control printing precision; Printing precision requires when high, and print speed is slow; Printing precision requires when low, and print speed is fast.

By controlling the rotation of motor, select the material extrusion nozzle of concrete big or small internal diameter to change the actual spray silk of nozzle sectional area S in working position; Because the work translational speed size of shower nozzle is constant, constant for guaranteeing every layer of Z axis forming height, regulate and control in real time the charging rate of conveying pipeline, this charging rate is directly proportional to the passage internal diameter size of the material extrusion nozzle in working position.

Beneficial effect:

The present invention is by controlling the rotation of motor, and then control material extrusion nozzle is with respect to the anglec of rotation of conveying pipeline; Thereby realize the control to the actual spray silk of nozzle sectional area; To control printing precision and the speed of printer.Can, for different printing purposes and different print areas, adjust different printing precision and speed.

Brief description of the drawings

Below in conjunction with accompanying drawing, the present invention is further described:

Fig. 1 is nozzle cluster front view of the present invention;

Fig. 2 is nozzle cluster left view of the present invention;

Fig. 3 is the logic chart of print speed influence factor of the present invention;

Fig. 4 is print speed regulator control system figure of the present invention.

Detailed description of the invention

As shown in Figure 1, 2, printer head of the present invention includes the material extrusion nozzle of conveying pipeline 801, connection base 803, rotating disk 804 and the big or small internal diameter passage of multiple difference.

Connect the lower end that base 803 is fixed on conveying pipeline 801, wherein connect base 803 inside and contain heating element heater, the material of heating conveying Pipe transfer, is molten condition.Rotating disk 804 is arranged on the lower end that connects base 803, and rotating disk can rotate with respect to connecting base 803 around axle simultaneously, connects in base 803 and includes motor, can drive the rotation of rotating disk 804.

The material extrusion nozzle 805,807,808 of the big or small internal diameter passage of multiple differences can removal be evenly installed on the lower end of rotating disk 804.Select the material extrusion nozzle operation of concrete big or small internal diameter passage by controlling the work rotary turnplate 804 of motor.Connecting base 803 is having and the equally cylinder groove of big or small internal diameter of conveying pipeline internal channel 802 with the junction of conveying pipeline 801, and rotating disk 804 also has and the equally cylinder groove of big or small internal diameter of conveying pipeline internal channel 802 material extrusion nozzle place is installed simultaneously.In the material extrusion nozzle of working position, as an expedite service aisle of material extrusion nozzle internal channel 806 and the 802 common formation of conveying pipeline internal channel, on the axle that wherein center of gravity of the center of gravity of material extrusion nozzle internal channel 806 cross sectional shapes and conveying pipeline internal channel 802 cross sectional shapes coexists perpendicular to material extrusion nozzle internal channel 806 cross sections and conveying pipeline internal channel 802 cross sections.

As shown in Figure 3,4, print speed regulate and control method is:

Print speed V=K*S*L; Wherein S is the sectional area of the actual spray silk of nozzle, and L is unit printing-forming area, and K is the constant relevant with printer;

The actual spray silk sectional area S of nozzle and the printing-forming area L of unit determine charging rate, and affect hot melt speed; Charging rate and hot melt speed determine print speed jointly;

Form a signal by the change of S and L and control print speed, regulate and control the charging rate of shower nozzle conveying pipeline;

Precision regulate and control method is: according to the different demands of printing precision, adjust print speed to control printing precision; Printing precision requires when high, and print speed is slow; Printing precision requires when low, and print speed is fast.

The present invention, by accurately controlling the rotation of motor, selects the material extrusion nozzle of concrete big or small internal diameter in working position.Because the work translational speed size of shower nozzle is constant, constant for guaranteeing every layer of Z axis forming height, regulate and control in real time the charging rate of conveying pipeline 801, this charging rate is directly proportional to the passage internal diameter size of the material extrusion nozzle in working position.For the application of different printing precision demands, can answer the material extrusion nozzle of big or small internal diameter in working position by rotating photo.

Claims (9)

1. a multiinjector 3D printer, includes conveying pipeline; It is characterized in that: also include and connect multiple material extrusion nozzles that base, rotating disk and passage internal diameter vary in size, connect the lower end that base is fixed on conveying pipeline, rotating disk is arranged on the lower end that connects base, rotating disk can rotate with respect to connecting base around axle simultaneously, and the material extrusion nozzle that multiple passage internal diameters vary in size is installed on the lower end of rotating disk; Conveying pipeline, connection base, rotating disk and a certain material extrusion nozzle interior form material transmission channel; The material extrusion nozzle that forms passage by adjustment regulates and controls the sectional area of shower nozzle spray silk.
2. multiinjector 3D printer according to claim 1, is characterized in that: in described connection base, be provided with motor, can drive dial rotation.
3. multiinjector 3D printer according to claim 1, is characterized in that: multiple material extrusion nozzles that passage internal diameter varies in size are removably evenly installed on the lower end of rotating disk.
4. multiinjector 3D printer according to claim 2, is characterized in that: multiple material extrusion nozzles that passage internal diameter varies in size are removably evenly installed on the lower end of rotating disk.
5. according to the multiinjector 3D printer described in claim 1 to 4 any one, it is characterized in that: described connection base is having the cylinder groove identical with conveying pipeline internal channel internal diameter size with the junction of conveying pipeline, and rotating disk also has the cylinder groove identical with conveying pipeline internal channel internal diameter size at installation material extrusion nozzle place; An expedite material channel of the common formation of the internal channel of the material extrusion nozzle in working position and conveying pipeline internal channel.
6. multiinjector 3D printer according to claim 5, is characterized in that: the center of gravity of described material extrusion nozzle inner passage section shape and the center of gravity of conveying pipeline inner passage section shape are positioned on the same axle perpendicular to material extrusion nozzle and conveying pipeline inner passage section.
7. multiinjector 3D printer according to claim 6, is characterized in that: connect base inside and contain heating element heater, the material of heating conveying Pipe transfer, is molten condition.
8. 3D printer speed and the accuracy control method described in right 1 to 7 any one, is characterized in that:
Described print speed regulate and control method is:
Print speed V=K*S*L; Wherein S is the sectional area of the actual spray silk of nozzle, and L is unit printing-forming area, and K is the constant relevant with printer;
The actual spray silk sectional area S of nozzle and the printing-forming area L of unit determine charging rate, and affect hot melt speed; Charging rate and hot melt speed determine print speed jointly;
Form a signal by the change of S and L and control print speed, regulate and control the charging rate of shower nozzle conveying pipeline;
Described precision regulate and control method is: according to the different demands of printing precision, adjust print speed to control printing precision; Printing precision requires when high, and print speed is slow; Printing precision requires when low, and print speed is fast.
9. the speed of 3D printer head according to claim 8 and precision regulate and control method, is characterized in that: by controlling the rotation of motor, select the material extrusion nozzle of concrete big or small internal diameter to change the actual spray silk of nozzle sectional area S in working position; Because the work translational speed size of shower nozzle is constant, constant for guaranteeing every layer of Z axis forming height, regulate and control in real time the charging rate of conveying pipeline, this charging rate is directly proportional to the passage internal diameter size of the material extrusion nozzle in working position.
CN201410331490.3A 2014-07-11 2014-07-11 Method for controlling printing speed and precision of multi-nozzle 3D printer CN104085111B (en)

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Cited By (22)

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CN104552949A (en) * 2014-12-29 2015-04-29 陈名乔 High-speed printing head of 3D printer
CN104608381A (en) * 2014-12-31 2015-05-13 英华达(上海)科技有限公司 3D printer and 3D printing method
CN104688383A (en) * 2015-02-10 2015-06-10 清华大学深圳研究生院 Rotating nozzle device for three-dimensional printer
CN104742368A (en) * 2015-03-06 2015-07-01 英华达(上海)科技有限公司 Printing head, three-dimensional forming equipment and printing method
CN104960340A (en) * 2015-06-30 2015-10-07 北京威控睿博科技有限公司 Multi-spray-head interference-free printing method and spray head structure of 3D printer
CN104985815A (en) * 2015-07-14 2015-10-21 成都思维智造科技有限公司 3D (three dimensional) printer sprayer structure
CN105058789A (en) * 2015-07-28 2015-11-18 华中科技大学 3D printing device suitable for multi-material workpieces
CN105109041A (en) * 2015-08-27 2015-12-02 中国矿业大学 3D (Three Dimensional) printer capable of changing spraying heads for printing
WO2016004642A1 (en) * 2014-07-11 2016-01-14 东莞中国科学院云计算产业技术创新与育成中心 3d printer nozzle capable of adjusting cross-sectional area of extruded material, and speed and precision control method thereof
CN105670917A (en) * 2015-12-30 2016-06-15 四川蓝光英诺生物科技股份有限公司 Bio-printer nozzle assembly and bio-printer
WO2016107493A1 (en) * 2014-12-29 2016-07-07 陈名乔 High-speed print head for 3d printer
CN105889571A (en) * 2016-06-01 2016-08-24 深圳万为智能制造科技有限公司 Multi-channel telescopic nozzle valve for 3D printing and nozzle valve control system
CN105965898A (en) * 2016-07-04 2016-09-28 吉林省夏唯自动化工程有限公司 3D printer sprayer with rotation switching function
CN106273455A (en) * 2015-06-05 2017-01-04 成都金采科技有限公司 A kind of 3D printer
CN106273521A (en) * 2015-06-05 2017-01-04 成都金采科技有限公司 A kind of multiaxis multi-jet 3D printer
KR20170004100A (en) * 2015-07-01 2017-01-11 김태문 3D printer
CN106423696A (en) * 2016-09-07 2017-02-22 中国科学院宁波材料技术与工程研究所 Multi-channel electric fluid jet scanning system
CN107000317A (en) * 2014-12-01 2017-08-01 沙特基础工业全球技术有限公司 Quick nozzle for increasing material manufacturing is cooled down
CN107160536A (en) * 2017-07-21 2017-09-15 西安科技大学 A kind of arm-type pottery mud 3D printer of manipulator
CN107570663A (en) * 2017-09-15 2018-01-12 杭州喜马拉雅信息科技有限公司 A kind of the sand mold printing equipment and method of the different aperture nozzle of double shower nozzles
CN108544633A (en) * 2018-04-26 2018-09-18 东北大学 One kind being suitable for the large complicated molding print heads of geological model 3D
CN111168994A (en) * 2019-12-31 2020-05-19 浙江大学 Multi-material 3D printing device with replaceable spray head

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WO2019112976A1 (en) * 2017-12-04 2019-06-13 Massachusetts Institute Of Technology Systems, devices, and methods for 3d printing by harnessing deformation, instability, and fracture of viscoelastic inks

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CN203974076U (en) * 2014-07-11 2014-12-03 东莞中国科学院云计算产业技术创新与育成中心 A kind of multiinjector 3D printer

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Cited By (29)

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Publication number Priority date Publication date Assignee Title
WO2016004642A1 (en) * 2014-07-11 2016-01-14 东莞中国科学院云计算产业技术创新与育成中心 3d printer nozzle capable of adjusting cross-sectional area of extruded material, and speed and precision control method thereof
CN107000317A (en) * 2014-12-01 2017-08-01 沙特基础工业全球技术有限公司 Quick nozzle for increasing material manufacturing is cooled down
US10173409B2 (en) 2014-12-01 2019-01-08 Sabic Global Technologies B.V. Rapid nozzle cooling for additive manufacturing
CN107000317B (en) * 2014-12-01 2018-08-24 沙特基础工业全球技术有限公司 Quick nozzle for increasing material manufacturing cools down
CN104552949A (en) * 2014-12-29 2015-04-29 陈名乔 High-speed printing head of 3D printer
WO2016107493A1 (en) * 2014-12-29 2016-07-07 陈名乔 High-speed print head for 3d printer
CN104608381A (en) * 2014-12-31 2015-05-13 英华达(上海)科技有限公司 3D printer and 3D printing method
CN104688383A (en) * 2015-02-10 2015-06-10 清华大学深圳研究生院 Rotating nozzle device for three-dimensional printer
CN104688383B (en) * 2015-02-10 2016-06-15 清华大学深圳研究生院 A kind of rotation nozzle apparatus of 3D printer
CN104742368A (en) * 2015-03-06 2015-07-01 英华达(上海)科技有限公司 Printing head, three-dimensional forming equipment and printing method
CN106273521A (en) * 2015-06-05 2017-01-04 成都金采科技有限公司 A kind of multiaxis multi-jet 3D printer
CN106273455A (en) * 2015-06-05 2017-01-04 成都金采科技有限公司 A kind of 3D printer
CN104960340A (en) * 2015-06-30 2015-10-07 北京威控睿博科技有限公司 Multi-spray-head interference-free printing method and spray head structure of 3D printer
KR20170004100A (en) * 2015-07-01 2017-01-11 김태문 3D printer
KR101718613B1 (en) * 2015-07-01 2017-03-21 김태문 3D printer
CN104985815A (en) * 2015-07-14 2015-10-21 成都思维智造科技有限公司 3D (three dimensional) printer sprayer structure
CN105058789B (en) * 2015-07-28 2017-09-26 华中科技大学 A kind of 3D printing equipment suitable for many material workpiece
CN105058789A (en) * 2015-07-28 2015-11-18 华中科技大学 3D printing device suitable for multi-material workpieces
CN105109041A (en) * 2015-08-27 2015-12-02 中国矿业大学 3D (Three Dimensional) printer capable of changing spraying heads for printing
CN105670917A (en) * 2015-12-30 2016-06-15 四川蓝光英诺生物科技股份有限公司 Bio-printer nozzle assembly and bio-printer
CN105889571A (en) * 2016-06-01 2016-08-24 深圳万为智能制造科技有限公司 Multi-channel telescopic nozzle valve for 3D printing and nozzle valve control system
CN105965898B (en) * 2016-07-04 2018-06-19 吉林省夏唯自动化工程有限公司 A kind of 3D printer nozzle of rotatable switching
CN105965898A (en) * 2016-07-04 2016-09-28 吉林省夏唯自动化工程有限公司 3D printer sprayer with rotation switching function
CN106423696B (en) * 2016-09-07 2019-04-16 中国科学院宁波材料技术与工程研究所 Multi channel currents body sprays scanning system
CN106423696A (en) * 2016-09-07 2017-02-22 中国科学院宁波材料技术与工程研究所 Multi-channel electric fluid jet scanning system
CN107160536A (en) * 2017-07-21 2017-09-15 西安科技大学 A kind of arm-type pottery mud 3D printer of manipulator
CN107570663A (en) * 2017-09-15 2018-01-12 杭州喜马拉雅信息科技有限公司 A kind of the sand mold printing equipment and method of the different aperture nozzle of double shower nozzles
CN108544633A (en) * 2018-04-26 2018-09-18 东北大学 One kind being suitable for the large complicated molding print heads of geological model 3D
CN111168994A (en) * 2019-12-31 2020-05-19 浙江大学 Multi-material 3D printing device with replaceable spray head

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