CN105479744A - Extrusion nozzle for 3D color printer - Google Patents
Extrusion nozzle for 3D color printer Download PDFInfo
- Publication number
- CN105479744A CN105479744A CN201510884362.6A CN201510884362A CN105479744A CN 105479744 A CN105479744 A CN 105479744A CN 201510884362 A CN201510884362 A CN 201510884362A CN 105479744 A CN105479744 A CN 105479744A
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- shower nozzle
- runner
- feeding assembly
- nozzle
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Abstract
The invention aims at providing an extrusion nozzle for a 3D color printer. The extrusion nozzle comprises a nozzle assembly. The nozzle assembly comprises a nozzle, a rotary sleeve, a bull gear, a pinion and a stepping motor. The rotary sleeve is installed outside the nozzle and located through an annular protrusion on the rotary sleeve. A conic mixing cavity is formed between the portion below the nozzle and the rotary sleeve. The nozzle is arranged below the conic mixing cavity. The bull gear is installed at the outer portion of the rotary sleeve through an elastic check ring. The pinion is engaged with the bull gear. The stepping motor fixed to a motor support is connected with the pinion. The motor support is fixed to the nozzle. An annular groove, a runner I, a runner II and a runner III are formed in the nozzle. The runner I, the runner II and the runner III are all communicated with the conic mixing cavity. A resistance wire heater is installed in the annular groove. A feeding assembly I, a feeding assembly II and a feeding assembly III are installed outside the runner I, the runner II and the runner III respectively. By the adoption of the extrusion nozzle, the problems that single-nozzle color printing of an existing 3D printer is difficult to achieve and chromatic aberration exists in the 3D color printing process are solved.
Description
Technical field
What the present invention relates to is a kind of 3D printer, the specifically nozzle structure of 3D printer.
Background technology
3D prints (3DP) the i.e. one of rapid shaping technique, and it is a kind of based on mathematical model file, uses powdery metal or plastics etc. can jointing material, is carried out the technology of constructed object by the mode successively printed.Difference according to its molding mode and Available Material is divided into selective laser sintering (SLS), fused glass pellet technology (FDM), stereolithography technology (SLA) and stacked manufacturing technology (LOM), wherein fused glass pellet technology (FDM) has the advantages such as stock utilization is high, the cost of material is low, alternate material kind is many, concise in technology, and FDM develops rapidly and is widely used.
Based on the 3D printer of FDM forming principle, the material of current main flow is PLA and ABS plasticity wire rod, great majority 3D printer on the market can only realize monochromatic printing, the method of current acquisition multicolor plastic printout comprises: 1, adopt two shower nozzle or many shower nozzles 3D printer, each shower nozzle loads the consumptive material of different colours and has the printing being responsible for a kind of color separately, the method cost is high and efficiency is low, and the kind of color is subject to the restriction of shower nozzle number.2, docked by the wire rod of different colours, print colors is the very flexible of the colour band by height sub-area, printing, can not print specific color at ad-hoc location.3, by the different color print of different parts, being got up by assembling parts, is not in fact still colour print.Occurred at present the 3D printer head based on three primary colors mixing principle on the market, but the not enough fully mixing of material in hybrid chamber being just out squeezed, there is aberration in the product thus printed, and shall not be applied to color accuracy and require high occasion.
Summary of the invention
The object of the present invention is to provide and solve current 3D printer and be difficult to realize the colour print of single spraying head and colored 3D and print the colored 3D printer of the one that there are the problems such as aberration and extrude shower nozzle.
The object of the present invention is achieved like this:
Shower nozzle extruded by a kind of colored 3D printer of the present invention, it is characterized in that: comprise nozzle component, described nozzle component comprises shower nozzle, pivoted housing, gear wheel, pinion, stepper motor, pivoted housing is arranged on shower nozzle outside and is located by the annular protrusion on pivoted housing, taper hybrid chamber is formed below shower nozzle and between pivoted housing, below taper hybrid chamber, nozzle is set, gear wheel is arranged on pivoted housing outside by circlip, pinion engages with gear wheel, the stepper motor be fixed on electric machine support connects pinion, electric machine support is fixed on shower nozzle, in shower nozzle, cannelure is set, runner I, runner II and runner III, runner I, runner II, runner III all communicates with taper hybrid chamber, in cannelure, resistance heater is installed, runner I installs feeding assembly I outward, runner II installs feeding assembly II outward, runner III installs feeding assembly III outward, feeding assembly I, feeding assembly II, feeding assembly III is conduit type.
The present invention can also comprise:
1, also laser heater is comprised, laser heater is fixed on above electric machine support, below laser heater, laser head is installed, penetrating hole is offered in position corresponding with laser head on electric machine support, through hole is positioned at the top of cannelure simultaneously, arrange through hole in shower nozzle, through hole is corresponding with the position of laser head.
2, the bottom of shower nozzle is provided with the heat resistant glass blocking through hole.
3, pivoted housing is installed miniature stirring rod, miniature stirring rod is positioned in taper hybrid chamber.
4, the outer wall of feeding assembly I, feeding assembly II, feeding assembly III all overlaps and has screw type water cooling tube.
Advantage of the present invention is:
1, red, yellow, blue three-color material enters in taper hybrid chamber by feeding assembly, driven by motor pivoted housing rotates around shower nozzle, the miniature stirring rod realizing motion carries out mixing toning to material, the charging rate of adjustment different colours material can obtain different colours, and the real single spraying first prize in a lottery look 3D that realizes prints; Pivoted housing adopts split type structure, is conducive to the installation and removal rotating hybrid nozzle component, and the gap between pivoted housing and shower nozzle is enough little ensures that the material of molten condition can not affect it and rotate.The material mixed, after extruding from nozzle, because miniature stirring rod is enough thin, does not have too much salvage stores in the above; The processing of taper hybrid chamber is enough little to be made material mix not affect single-point color matching accuracy again in time.
2, shower nozzle adopts the mode of resistance wire and laser parallel heating, and resistance heater provides major heat for shower nozzle entirety, and the material that feeding assembly is sent into melts in shower nozzle; There is the phenomenon of temperature inequality in 3D printer head, adopts laser to carry out local heat to the material in hybrid chamber, ensures the reasonable and accuracy of temperature of charge in hybrid chamber.Laser heater has temperature survey and automatic control function simultaneously, and when not having material in hybrid chamber, laser heater does not work in order to avoid printout of burning; Through hole blocked by the heat resistant glass installing cylindrical transparent in the bottom of shower nozzle, prevents material from blocking through hole, do not affect laser auxiliary heating simultaneously.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the stereogram of shower nozzle;
Fig. 3 is the sectional view of shower nozzle;
Fig. 4 is the phantom of shower nozzle and pivoted housing.
Detailed description of the invention
Below in conjunction with accompanying drawing citing, the present invention is described in more detail:
Composition graphs 1 ~ 4, shower nozzle extruded by a kind of colored 3D printer of the present invention, comprise pinion 1, gear wheel 2, shower nozzle 3, heat resistant glass 4, miniature stirring rod 5, pivoted housing 6, circlip 7, resistance heater 8, stud I9, water cooling tube 10, trunnion 11, feeding assembly I12, stud II13, laser heater 14, laser head 15, feeding assembly II16, feeding assembly III17, thermal detector 18, electric machine support 19, stepper motor 20, taper hybrid chamber 21, through hole 22 is provided with in shower nozzle 3, runner I23, cannelure 24, runner II25, runner III26.
Described feeding assembly I ~ III, electric machine support 19 and resistance heater 8 are arranged on and rotate on hybrid nozzle component, on laser heater 14 mounted motor support 19.Electric machine support 19 is connected by stud I9 with the hybrid nozzle component of rotation; Feeding assembly I ~ III is threaded connection with the hybrid nozzle component of rotation; Laser heater 14 and electric machine support 19 by between stud II13 be connected; Material in shower nozzle 3 adopts resistance wire and laser parallel mode of heating.
Described feeding assembly I12, this assembly is conduit type feeding assembly, and it is line style consumptive material that selected 3D prints material, in order to prevent line style consumptive material from blocking trunnion 11 due to expanded by heating, adopts water cooling tube 10 pairs of trunnions 11 to carry out radiating treatment.
The hybrid nozzle component of described rotation, comprises pinion 1, gear wheel 2, shower nozzle 3, pivoted housing 6, circlip 7, miniature stirring rod 5 and heat resistant glass 4; Pivoted housing 6 is for dissection type and be divided into 2 parts, and pivoted housing 6 is arranged on shower nozzle 3 and by the annular protrusion location on pivoted housing 6, pivoted housing 6 can rotate around shower nozzle 3; Gear wheel 2 is arranged on pivoted housing 6 by circlip 7, and stepper motor 20 drives pivoted housing 6 to rotate around the axis of shower nozzle 3 by pinion 1 and gear wheel 2.
The hybrid nozzle component of described rotation, the material of shower nozzle 3 is brass, resistance heater 8 is arranged in the groove of shower nozzle 3, and shower nozzle 3 heats mainly through ring resistance silk heater 8, and three thermal detectors 18 uniform around shower nozzle 3 measure shower nozzle 3 temperature to realize the control to temperature; Runner I23, runner II25, runner III26 is processed with in shower nozzle 3.When shower nozzle work extruded by colored 3D printer, resistance heater 8 pairs of shower nozzles 3 are carried out preheating and are monitored the temperature of shower nozzle 3 by thermometric 18, red after preheating, yellow, blue three-color line style material is transported in shower nozzle 3 by feeding assembly I ~ III, material melts and enters in the taper hybrid chamber 21 between shower nozzle 3 and pivoted housing 6 by runner I ~ III in shower nozzle 3, pivoted housing 6 is provided with miniature stirring rod 5, pivoted housing 6 rotating band actuating miniature stirring rod 5 makes material fully mix, the nozzle of material after Homogeneous phase mixing in pivoted housing 6 is extruded, regulate the charging rate of three kinds of color materials that nozzle can be made to extrude multiple color, the space of taper hybrid chamber 21 is enough little of to ensure single-point color matching accuracy.
Described shower nozzle, through hole 22 is processed with along axis at shower nozzle 3, the light beam that the laser head 15 of laser heater 14 sends via in this through hole 22 pairs of taper hybrid chambers 21 material carry out auxiliary heating, laser heater 15 has temperature survey and automatic control function simultaneously, the intensity of laser is regulated according to feedack, to make the material of in taper hybrid chamber 21 be in suitable temperature, when not having material in taper hybrid chamber 21, laser heater 15 opens measuring tempeature function in order to avoid burn printout; Through hole 22 blocked by the heat resistant glass 4 installing cylindrical transparent in the bottom of shower nozzle 3, prevents material from blocking through hole 22, do not affect laser auxiliary heating simultaneously.
Feeding assembly of the present invention, electric machine support and resistance heater are arranged on and rotate on hybrid nozzle component, on laser heater mounted motor support.Electric machine support is connected by stud I with the hybrid nozzle component of rotation; Feeding assembly is threaded connection with the hybrid nozzle component of rotation; Laser heater and electric machine support by between stud II be connected; Material adopts resistance wire and laser parallel mode of heating.
Described feeding assembly, this assembly is conduit type feeding assembly, and it is line style consumptive material that selected 3D prints material, in order to prevent line style consumptive material from blocking trunnion due to expanded by heating, adopts water cooling tube to carry out radiating treatment to trunnion.
The hybrid nozzle component of described rotation, comprises pinion, gear wheel, shower nozzle, pivoted housing, circlip, miniature stirring rod and heat resistant glass; Pivoted housing is dissection type and is divided into 2 parts, and pivoted housing is arranged on shower nozzle and by the annular protrusion location on pivoted housing, pivoted housing can rotate around shower nozzle; Gear wheel is arranged on pivoted housing by circlip, and stepper motor drives pivoted housing to rotate around the axis of shower nozzle by pinion and gear wheel.
The hybrid nozzle component of described rotation, the material of shower nozzle is brass, resistance heater is arranged in the groove of shower nozzle, and shower nozzle is mainly through the heating of ring resistance silk heater, and three thermal detectors uniform around shower nozzle measure nozzle temperature to realize the control to temperature; Three runners are processed with in shower nozzle, red, yellow, blue three-color material is transported in shower nozzle by feeding assembly, material melts and enters in the taper hybrid chamber between shower nozzle and pivoted housing by runner in shower nozzle, pivoted housing is provided with miniature stirring rod, pivoted housing rotating band actuating miniature stirring rod makes material fully mix, material after Homogeneous phase mixing is extruded through nozzle, regulate the charging rate of three kinds of color materials that nozzle can be made to extrude multiple color, the space of taper hybrid chamber is enough little of to ensure single-point color matching accuracy.
Described shower nozzle, through hole is processed with along axis at shower nozzle, the light beam that the laser head of laser heater sends carries out auxiliary heating via this through hole to the material in taper hybrid chamber, laser heater has temperature survey and automatic control function simultaneously, when not having material in hybrid chamber, laser heater only opens the function of measuring tempeature in order to avoid burn printout; Through hole blocked by the heat resistant glass installing cylindrical transparent in the bottom of shower nozzle, prevents material from blocking through hole, do not affect laser auxiliary heating simultaneously.
Described electric machine support, electric machine support is arranged on shower nozzle by stud I, and laser heater is arranged on electric machine support by stud II.
Feeding assembly, electric machine support 19 and resistance heater 8 are arranged on and rotate on hybrid nozzle component, on laser heater 14 mounted motor support 19.Electric machine support 19 is connected by stud I9 with the hybrid nozzle component of rotation; Feeding assembly is threaded connection with the hybrid nozzle component of rotation; Laser heater 14 and electric machine support 19 by between stud II13 be connected; Material adopts resistance wire and laser parallel mode of heating.
Pivoted housing 6 is dissection type and is divided into 2 parts, pivoted housing 6 to be arranged on shower nozzle 3 and by the annular protrusion location on pivoted housing 6, stepper motor 20 drives pinion 1 and gear wheel 2 to rotate, pivoted housing 6 is rotated by the axis of gear wheel drive 2 around shower nozzle 3, and gear wheel 2 is arranged on pivoted housing 6 by circlip 7.
After rotating the assembling of hybrid nozzle component, space between shower nozzle 3 and pivoted housing 6 is taper hybrid chamber, this taper hybrid chamber is very little of the color accuracy ensureing wire vent, uniform 3 runners in shower nozzle 3, after material in feeding assembly I12, II16, III17 becomes liquid state by heating, entered in taper hybrid chamber by 3 runners.
Pivoted housing 6 is provided with multiple miniature stirring rod 5, pivoted housing 6 realizes the stirring to the material in taper hybrid chamber with actuating miniature stirring rod 5.
Shower nozzle 3 has the through-hole structure along axis, the light beam that the laser head 15 of laser heater 14 sends carries out auxiliary heating via this through hole to the material in taper hybrid chamber, through hole blocked by the heat resistant glass 4 installing cylindrical transparent in the bottom of shower nozzle 3, prevent material from blocking through hole, uniform 3 thermal detectors 18 on shower nozzle 3, in order to measure the temperature of shower nozzle 3.
Resistance heater 8 is for loop configuration is so that laser beam passes through, and resistance heater 6 heats shower nozzle 3 to melt the material in shower nozzle 3.
Trunnion 11 in feeding assembly I12 is arranged on shower nozzle 3, and water cooling tube 1 is arranged on trunnion 11.
Electric machine support 19 is arranged on shower nozzle 3 by stud I9, and laser heater 14 is arranged on electric machine support 19 by stud II13.
Claims (6)
1. shower nozzle extruded by a colored 3D printer, it is characterized in that: comprise nozzle component, described nozzle component comprises shower nozzle, pivoted housing, gear wheel, pinion, stepper motor, pivoted housing is arranged on shower nozzle outside and is located by the annular protrusion on pivoted housing, taper hybrid chamber is formed below shower nozzle and between pivoted housing, below taper hybrid chamber, nozzle is set, gear wheel is arranged on pivoted housing outside by circlip, pinion engages with gear wheel, the stepper motor be fixed on electric machine support connects pinion, electric machine support is fixed on shower nozzle, in shower nozzle, cannelure is set, runner I, runner II and runner III, runner I, runner II, runner III all communicates with taper hybrid chamber, in cannelure, resistance heater is installed, runner I installs feeding assembly I outward, runner II installs feeding assembly II outward, runner III installs feeding assembly III outward, feeding assembly I, feeding assembly II, feeding assembly III is conduit type.
2. shower nozzle extruded by the colored 3D printer of one according to claim 1, it is characterized in that: also comprise laser heater, laser heater is fixed on above electric machine support, below laser heater, laser head is installed, penetrating hole is offered in position corresponding with laser head on electric machine support, through hole is positioned at the top of cannelure simultaneously, and arrange through hole in shower nozzle, through hole is corresponding with the position of laser head.
3. shower nozzle extruded by the colored 3D printer of one according to claim 2, it is characterized in that: the bottom of shower nozzle is provided with the heat resistant glass blocking through hole.
4. extrude shower nozzle according to the colored 3D printer of the arbitrary described one of claim 1-3, it is characterized in that: pivoted housing is installed miniature stirring rod, miniature stirring rod is positioned in taper hybrid chamber.
5. extrude shower nozzle according to the colored 3D printer of the arbitrary described one of claim 1-3, it is characterized in that: the outer wall of feeding assembly I, feeding assembly II, feeding assembly III all overlaps and has screw type water cooling tube.
6. extrude shower nozzle according to the colored 3D printer of the arbitrary described one of claim 4, it is characterized in that: the outer wall of feeding assembly I, feeding assembly II, feeding assembly III all overlaps and has screw type water cooling tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510884362.6A CN105479744B (en) | 2015-12-04 | 2015-12-04 | A kind of colour 3D printer squeezes out nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510884362.6A CN105479744B (en) | 2015-12-04 | 2015-12-04 | A kind of colour 3D printer squeezes out nozzle |
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| Publication Number | Publication Date |
|---|---|
| CN105479744A true CN105479744A (en) | 2016-04-13 |
| CN105479744B CN105479744B (en) | 2018-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510884362.6A Active CN105479744B (en) | 2015-12-04 | 2015-12-04 | A kind of colour 3D printer squeezes out nozzle |
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| Country | Link |
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| CN (1) | CN105479744B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106696269A (en) * | 2017-01-04 | 2017-05-24 | 深圳市玖品空气净化科技有限公司 | Multifunctional 3D printer nozzle |
| CN106704631A (en) * | 2017-03-07 | 2017-05-24 | 北京交通大学海滨学院 | Selector valve for multifunctional expandable FDM-3D printer external mixer |
| CN107901399A (en) * | 2017-12-14 | 2018-04-13 | 深圳市爱能特科技有限公司 | The full-color printing head of 3D printer |
| CN108058381A (en) * | 2017-12-30 | 2018-05-22 | 王世美 | A kind of 3D printer of high-accuracy high-efficiency rate |
| WO2018121176A1 (en) * | 2016-12-26 | 2018-07-05 | 唐富强 | Full-colour 3d print head |
| TWI633994B (en) * | 2016-10-06 | 2018-09-01 | 國立中興大學 | 3D printing device capable of instantly monitoring temperature and temperature monitoring method thereof |
| CN108673891A (en) * | 2018-06-14 | 2018-10-19 | 浙江大学 | The multiple flow passages nozzle structure of portable biometric 3D printer |
| TWI653138B (en) | 2017-10-13 | 2019-03-11 | 國立台灣科技大學 | Rotatable nozzle structure and three-dimensional printing apparatus |
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| CN104626556A (en) * | 2013-11-12 | 2015-05-20 | 华中科技大学 | Fused deposition three dimensional printing nozzle and printer |
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Patent Citations (5)
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| CN104626556A (en) * | 2013-11-12 | 2015-05-20 | 华中科技大学 | Fused deposition three dimensional printing nozzle and printer |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI633994B (en) * | 2016-10-06 | 2018-09-01 | 國立中興大學 | 3D printing device capable of instantly monitoring temperature and temperature monitoring method thereof |
| WO2018121176A1 (en) * | 2016-12-26 | 2018-07-05 | 唐富强 | Full-colour 3d print head |
| CN106696269A (en) * | 2017-01-04 | 2017-05-24 | 深圳市玖品空气净化科技有限公司 | Multifunctional 3D printer nozzle |
| CN106696269B (en) * | 2017-01-04 | 2019-07-26 | 陕西恒通智能机器有限公司 | A kind of multi-functional 3D printer spray head |
| CN106704631A (en) * | 2017-03-07 | 2017-05-24 | 北京交通大学海滨学院 | Selector valve for multifunctional expandable FDM-3D printer external mixer |
| TWI653138B (en) | 2017-10-13 | 2019-03-11 | 國立台灣科技大學 | Rotatable nozzle structure and three-dimensional printing apparatus |
| CN107901399A (en) * | 2017-12-14 | 2018-04-13 | 深圳市爱能特科技有限公司 | The full-color printing head of 3D printer |
| CN108058381A (en) * | 2017-12-30 | 2018-05-22 | 王世美 | A kind of 3D printer of high-accuracy high-efficiency rate |
| CN108673891A (en) * | 2018-06-14 | 2018-10-19 | 浙江大学 | The multiple flow passages nozzle structure of portable biometric 3D printer |
| CN108673891B (en) * | 2018-06-14 | 2024-03-12 | 浙江大学 | Multi-runner spray head structure of portable biological 3D printer |
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| CN105479744B (en) | 2018-05-18 |
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