CN106217872A - A kind of 3D printhead - Google Patents
A kind of 3D printhead Download PDFInfo
- Publication number
- CN106217872A CN106217872A CN201610607505.3A CN201610607505A CN106217872A CN 106217872 A CN106217872 A CN 106217872A CN 201610607505 A CN201610607505 A CN 201610607505A CN 106217872 A CN106217872 A CN 106217872A
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- CN
- China
- Prior art keywords
- consumptive material
- trunnion
- motor shaft
- printhead
- printing head
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- 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.)
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Classifications
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- 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)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Ink Jet (AREA)
Abstract
The invention discloses a kind of 3D printhead, including printing head base, the motor being arranged in printing head base, and consumptive material wheel, trunnion and the heating module being arranged on printing head base same side；Being arranged with motor shaft on the output shaft of described motor, the central shaft of motor shaft is parallel with the central shaft that consumptive material is taken turns and in same level, and the gap between motor shaft and consumptive material wheel is less than the diameter of thread consumptive material；Described heating module is arranged at motor shaft and the underface of consumptive material wheel, and the one of described trunnion rectifies the gap between taking turns motor shaft and consumptive material, and the other end of trunnion extends in heating module, and described heating module is provided with nozzle.Its reasonable in design, the printhead of same size can reach bigger printing volume, perfect heat-dissipating, and circuit is built in printhead, reduces potential safety hazard, feed in the way of short range extrusion, and plug, pumpback are not accurately and control accuracy is higher.
Description
Technical field
The present invention relates to 3D and print field, particularly relate to a kind of 3D printhead.
Background technology
It is a kind of rapid shaping technique that 3D prints, generally use can jointing material, construct by the way of successively printing
The technology of object.Wherein melt extrude molding (FDM) and be used mostly ABS, PLA etc. as consumptive material with thread feed.Consumptive material is in spray
Heated fusing in head.Shower nozzle is along part section profile and fills orbiting motion, and simultaneously by the material extrusion of fusing, material is rapid
Solidification, and bond with the material of surrounding.Each synusia is to pile up to form on last layer, and current layer is played fixed by last layer
Position and the effect supported.It is then by respectively laying a step-by-step movement stepping in tri-dimensions of XYZ in terms of 3D printer structure
Motor, by the layered position of mathematical model, computer software determines that each needs the point printed, carrys out corresponding 3 steppings of control
The Collaboration of motor, it is achieved thereby that the three-dimensional contouring on three-dimensional.
The most traditional FDM3D printer uses the thick O-shaped structure of supporting way mostly, and its printhead exists asks as follows
Topic:
(1) size of printhead is relatively big, relative printing small volume, it is impossible to meet miniaturization printer but keep simultaneously
The relatively large requirement printing volume；
(2) heat radiation structure design of printhead is unreasonable, and poor radiation causes local part hot operation, high temperature parts
Easily cause the risk of serious secure context, it is impossible to meet long-time, the job requirement of high load capacity；
(3) outside the circuit of printhead is exposed to, exists and be risk of damage to, even cause security incident, the most beautiful
See；
(4) consumptive material supplies printhead in the way of remotely extrusion, is consumptive material and provides driving means and the printhead of power
Distributed Design, apart from each other, easily cause that plug, pumpback rate be low and the problem such as control accuracy is relatively low.
Summary of the invention
Based on this, for the problems referred to above, the present invention proposes a kind of 3D printhead, its reasonable in design, same size
Printhead can reach bigger printing volume, perfect heat-dissipating, and circuit is built in printhead, reduces potential safety hazard, with
The mode feed of short range extrusion, plug, pumpback are not accurately and control accuracy is higher.
For reaching above-mentioned purpose, the technical scheme is that a kind of 3D printhead, including printing head base, be arranged at
Motor in printing head base, and consumptive material wheel, trunnion and the heating module being arranged on printing head base same side；
Being arranged with motor shaft on the output shaft of described motor, the central shaft of motor shaft is parallel with the central shaft that consumptive material is taken turns and same
On horizontal plane, the gap between motor shaft and consumptive material wheel is less than the diameter of thread consumptive material；Described heating module is arranged at motor
Axle and the underface of consumptive material wheel, the one of described trunnion rectifies the gap between taking turns motor shaft and consumptive material, and the other end of trunnion prolongs
Extend in heating module, described heating module is provided with nozzle.
In the present invention during feed, thread consumptive material is sandwiched between consumptive material wheel and motor shaft, and motor drive motor axle turns
Time dynamic, thread consumptive material is pullled power by motor shaft and is sent in trunnion, and then is heating module feed, the built-in heating of heating module
Components and parts and critesistor, critesistor detects temperature in real time, thus the most accurately controls the temperature of printhead, and consumptive material is adding
It is liquid by solid-state through high temperature melt in thermal modules and extrudes from nozzle, the most printable.The motor of power is provided for thread consumptive material
Axle is arranged the most nearby with heating module, i.e. to heating module feed in the way of short range extrusion, by accurately controlling step
The rotating speed entering motor is i.e. accurately controlled extrusion capacity and the extruded velocity of consumptive material, and control is more accurately, plug and consumptive material pumpback be not accurate
Really.
In the present invention, it is preferable that be additionally provided with pressure head on described printing head base, trunnion fixes seat and spring, described
Pressure head, trunnion fixes seat and heating module is set in turn on the same side of printing head base from top to bottom, and pressure head lead to
Cross the first screw to be movably arranged on printing head base, in pressure head, be provided with the consumptive material through hole passed through for thread consumptive material；Described
Spring and motor shaft are fixed between seat at pressure head and trunnion, and the two ends of spring are fixed with pressure head and trunnion respectively, and seat is fixing to be connected
Connect；Described consumptive material wheel is movably set on pressure head by the second screw, and consumptive material wheel and spring lay respectively at the first screw
Both sides, the central shaft of consumptive material wheel is parallel with the central shaft of motor shaft, and the gap between consumptive material wheel and motor shaft forms consumptive material passage,
This consumptive material passage is positioned at the underface of described consumptive material through hole；Described trunnion fixes seat through trunnion, and one end of trunnion is positioned at
The underface of consumptive material passage, the other end of trunnion extends in heating module.
In order to gap length between consumptive material wheel and motor shaft can be regulated, to regulate the degree of tightness of thread consumptive material, devise pressure
Head, trunnion fix seat and spring, and pressure head can rotate around the first screw, and spring is in tension, to one end one of pressure head
Individual thrust upwards, makes the consumptive material wheel on the pressure head other end the most close with motor shaft, the degree of tightness i.e. scalable silk of regulation spring
The nipped elasticity of shape consumptive material, and then make thread consumptive material accurately extrude along with the rotation of motor shaft, finally it is fed through larynx
In pipe and heating module, the purpose reaching to strengthen consumptive material control accuracy with this, total is reasonably distributed simultaneously, reduces size
Space, for the printhead of same size, can reach bigger printing volume.
In a preferred embodiment, described printing head base is additionally provided with the first fan and the second fan, described
The air outlet of one fan is just to described nozzle, and the air outlet of described second fan is just to described trunnion.
Wherein, the first fan is rapidly the liquid consumptive material cooling from nozzle ejection, and make to be lowered the temperature rapidly by printed matter solidification, carries
High print quality；Second fan is trunnion cooling, it is to avoid the risk of putty in trunnion.
Further, described trunnion is fixed seat and is made up of the conducting strip stacked on top of one another of multiple laminated structures, conducting strip it
Between formed guide wind groove, the air outlet of described second fan just to guide wind groove.
Wherein, trunnion is fixed seat and is constituted with the conducting strip stacked on top of one another of multiple laminated structures, will fix seat design by trunnion
Become the version of fin, to increase area of dissipation, coordinate and reasonably guide wind groove and the second fan, promote trunnion further
Radiating effect, it is to avoid the risk of putty in trunnion.
In a preferred embodiment, in described printing head base, it is additionally provided with wire mounting groove, and wire mounting groove is positioned at step
Enter between motor and printing head base.Wire is built in wire mounting groove, reduces external wire and be risk of damage to, keep away
Exempt to produce potential safety hazard, the most more attractive.
In a preferred embodiment, described motor shaft is evenly distributed with some bar shaped grooves vertically.Bar shaped groove
Increase the frictional force between thread consumptive material and motor shaft, it is to avoid consumptive material skids, the most accurately to control feed.
The invention has the beneficial effects as follows:
(1) overall construction design of the present invention is compact, and the space taken is the least, less than existing printhead volume close to one
Half, in the case of equal complete machine size, stamp with the size can increase about 40mm, prints 120mm according to routine and calculates, increases
The printing volume of 30%；
(2) provide the motor shaft of power to arrange the most nearby with heating module for thread consumptive material, i.e. extrude with short range
Mode to heating module feed, be i.e. accurately controlled extrusion capacity and the extrusion of consumptive material by accurately controlling the rotating speed of motor
Speed, control is more accurately, plug and consumptive material pumpback be not accurate；
(3) first fans are rapidly the liquid consumptive material cooling from nozzle ejection, and make to be lowered the temperature rapidly by printed matter solidification, improves
Print quality；Second fan is trunnion cooling, it is to avoid the risk of putty in trunnion；
(4) trunnion is fixed seat and is constituted with the conducting strip stacked on top of one another of multiple laminated structures, will fix seat and be designed to by trunnion
The version of fin, to increase area of dissipation, coordinates and reasonably guides wind groove and the second fan, promote trunnion further
Radiating effect, it is to avoid the risk of putty in trunnion；
(5) wire is built in wire mounting groove, reduces external wire and be risk of damage to, it is to avoid produce safety hidden
Suffer from, the most more attractive；
(6) bar shaped groove increases the frictional force between thread consumptive material and motor shaft, it is to avoid consumptive material skids, with the most accurately
Control feed.
Accompanying drawing explanation
Fig. 1 is the structural representation of 3D printhead in the embodiment of the present invention；
Fig. 2 is the structural representation after 3D printhead installs the second fan in Fig. 1；
Description of reference numerals:
100-printing head base, 101-pressure head, 102-spring, 103-motor shaft, 104-trunnion fixes seat, 105-trunnion,
106-heating module, 107-nozzle, 108-consumptive material wheel, 109-the first fan, 110-wire mounting groove, 111-motor,
The thread consumptive material of 112-, 113-the second fan, 114-the first screw, 115-the second screw.
Detailed description of the invention
Below in conjunction with the accompanying drawings embodiments of the invention are described in detail.
Embodiment 1
With reference to Fig. 1, a kind of 3D printhead, including printing head base 100, the stepping being arranged in printing head base 100 electricity
Machine 111, and consumptive material wheel 108, trunnion 105 and the heating module 106 being arranged on printing head base 100 same side；Described
Being arranged with motor shaft 103 on the output shaft of motor 111, the central shaft of motor shaft 103 is parallel with the central shaft of consumptive material wheel 108
And in same level, the gap between motor shaft 103 and consumptive material wheel 108 is less than the diameter of thread consumptive material 112；Described adds
Thermal modules 106 is arranged at motor shaft 103 and the underface of consumptive material wheel 108, the one of described trunnion 105 rectify to motor shaft 103 with
Gap between consumptive material wheel 108, the other end of trunnion 105 extends in heating module 106, and described heating module 106 sets
It is equipped with nozzle 107.
During feed, thread consumptive material 112 is sandwiched between consumptive material wheel 108 and motor shaft 103, and consumptive material wheel 108 is rotatable, stepping
When motor 111 drive motor axle 103 rotates, thread consumptive material 112 is sent in trunnion 105 by the power of pullling of motor shaft 103, and then
For heating module 106 feed, heating module 106 built-in heating components and parts and critesistor, critesistor detects temperature in real time,
Thus control in real time accurately the temperature of printhead, consumptive material in heating module 106 by solid-state through high temperature melt be liquid from spray
Mouth 107 is extruded, the most printable.The motor shaft 103 of power is provided with heating module 106 the most nearby for thread consumptive material 112
Arrange, i.e. to heating module 106 feed in the way of short range extrusion, can essence by accurately controlling the rotating speed of motor 111
Really controlling extrusion capacity and the extruded velocity of consumptive material, control is more accurately, plug and consumptive material pumpback be not accurate.
Embodiment 2
The present embodiment is on the basis of embodiment 1:
Be additionally provided with pressure head 101 on described printing head base 100, trunnion fixes seat 104 and spring 102, described pressure
101, trunnion fixes seat 104 and heating module 106 is set in turn on the same side of printing head base 100 from top to bottom,
And pressure head 101 is movably arranged on printing head base 100 by the first screw 114, it is provided with in pressure head 101 for thread consumptive material
The consumptive material through hole that 112 pass through；Described spring 102 and motor shaft 103 are fixed between seat 104 at pressure head 101 and trunnion, and bullet
The two ends of spring 102 fix that seat 104 is fixing to be connected respectively with pressure head 101 and trunnion；Described consumptive material wheel 108 is by the second screw
115 are movably set on pressure head 101, and consumptive material wheel 108 and spring 102 lay respectively at the both sides of the first screw 115, and consumptive material is taken turns
The central shaft of 108 is parallel with the central shaft of motor shaft 103, and the gap between consumptive material wheel 108 and motor shaft 103 forms consumptive material and leads to
Road, this consumptive material passage is positioned at the underface of described consumptive material through hole；Described trunnion 105 fixes seat 104, and trunnion through trunnion
One end of 105 is positioned at the underface of consumptive material passage, and the other end of trunnion 105 extends in heating module 107.
In order to gap length between consumptive material wheel 108 and motor shaft 103 can be regulated, to regulate the degree of tightness of thread consumptive material 112,
Devise pressure head 101, trunnion fixes seat 104 and spring 102, and pressure head 101 can rotate around the first screw 114, at spring 102
In tense situation, to one, one end thrust upwards of pressure head 101, make the consumptive material wheel 108 on pressure head 101 other end constantly with electric
Arbor 103 is close, the nipped elasticity of the thread consumptive material of degree of tightness i.e. scalable 112 of regulation spring 102, and then makes thread consumptive material
112 accurately extrude along with the rotation of motor shaft 103, are finally fed through in trunnion 105 and heating module 106, reach with this
Strengthening the purpose of consumptive material control accuracy, total is reasonably distributed simultaneously, reduces dimensional space, for the printing of same size
Head, can reach bigger printing volume.
Embodiment 3
With reference to Fig. 2, the present embodiment is on the basis of embodiment 1:
The first fan 109 and the second fan 113, described first fan 109 it is additionally provided with on described printing head base 100
Air outlet just to described nozzle 107, the air outlet of described second fan 113 is just to described trunnion 105.
Wherein, the first fan 109 is rapidly the liquid consumptive material cooling from nozzle 107 ejection, makes to be lowered the temperature rapidly by printed matter
Solidification, improves print quality；Second fan 113 lowers the temperature for trunnion 105, it is to avoid the risk of putty in trunnion 105.
Embodiment 4
The present embodiment is on the basis of embodiment 3:
Described trunnion is fixed seat 104 and is made up of the conducting strip stacked on top of one another of multiple laminated structures, is formed between conducting strip
Guiding wind groove, the air outlet of described second fan 113 is just to guiding wind groove.
Wherein, trunnion is fixed seat 104 and is constituted with the conducting strip stacked on top of one another of multiple laminated structures, will fix seat by trunnion
104 versions being designed to fin, to increase area of dissipation, coordinate and reasonably guide wind groove and the second fan 113, enter one
Step promotes the radiating effect of trunnion 105, it is to avoid the risk of putty in trunnion 105.Embodiment 5
The present embodiment is on the basis of embodiment 1:
It is additionally provided with wire mounting groove 110 in described printing head base 100, and wire mounting groove 110 is positioned at motor 111
And between printing head base 100.Wire is built in wire mounting groove 110, reduces external wire and be risk of damage to, keep away
Exempt to produce potential safety hazard, the most more attractive.
Embodiment 6
The present embodiment is on the basis of embodiment 1:
Some bar shaped grooves it are evenly distributed with vertically on described motor shaft 103.Bar shaped groove increases thread consumptive material 112
And the frictional force between motor shaft 103, it is to avoid consumptive material skids, the most accurately to control feed.
Embodiment described above only have expressed the detailed description of the invention of the present invention, and it describes more concrete and detailed, but also
Therefore the restriction to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that, for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, it is also possible to make some deformation and improvement, these broadly fall into the guarantor of the present invention
Protect scope.
Claims (6)
1. a 3D printhead, it is characterised in that: include printing head base, the motor being arranged in printing head base, with
And consumptive material wheel, trunnion and the heating module being arranged on printing head base same side；Overlap on the output shaft of described motor
Being provided with motor shaft, the central shaft of motor shaft is parallel with the central shaft that consumptive material is taken turns and in same level, and motor shaft is taken turns with consumptive material
Between gap less than the diameter of thread consumptive material；Described heating module is arranged at motor shaft and the underface of consumptive material wheel, described
The one of trunnion rectifies the gap between taking turns motor shaft and consumptive material, and the other end of trunnion extends in heating module, and described adds
Nozzle it is provided with in thermal modules.
3D printhead the most according to claim 1, it is characterised in that: be additionally provided with on described printing head base pressure head,
Trunnion fixes seat and spring, and described pressure head, trunnion fixes seat and heating module is set in turn in printing head base from top to bottom
Same side on, and pressure head is movably arranged on printing head base by the first screw, is provided with for thread consumptive material in pressure head
The consumptive material through hole passed through；Described spring and motor shaft are fixed between seat at pressure head and trunnion, and the two ends of spring respectively with
Pressure head and trunnion fix the fixing connection of seat；Described consumptive material wheel is movably set on pressure head by the second screw, and consumptive material wheel and
Spring lays respectively at the both sides of the first screw, and the central shaft of consumptive material wheel is parallel with the central shaft of motor shaft, consumptive material wheel and motor shaft
Between gap formed consumptive material passage, this consumptive material passage is positioned at the underface of described consumptive material through hole；Described trunnion passes trunnion
Fixing seat, and one end of trunnion is positioned at the underface of consumptive material passage, the other end of trunnion extends in heating module.
3D printhead the most according to claim 1, it is characterised in that: it is additionally provided with the first wind on described printing head base
Fan and the second fan, the air outlet of described first fan is just to described nozzle, and the air outlet of described second fan is just to described
Trunnion.
3D printhead the most according to claim 3, it is characterised in that: described trunnion fixes seat by multiple laminated structures
Conducting strip stacked on top of one another forms, and is formed and guide wind groove between conducting strip, and the air outlet of described second fan is just to guiding wind groove.
3D printhead the most according to claim 1, it is characterised in that: it is additionally provided with wire in described printing head base and installs
Groove, and wire mounting groove is between motor and printing head base.
3D printhead the most according to claim 1, it is characterised in that: if being evenly distributed with vertically on described motor shaft
Dry bar shaped groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610607505.3A CN106217872A (en) | 2016-07-29 | 2016-07-29 | A kind of 3D printhead |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610607505.3A CN106217872A (en) | 2016-07-29 | 2016-07-29 | A kind of 3D printhead |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106217872A true CN106217872A (en) | 2016-12-14 |
Family
ID=57533926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610607505.3A Pending CN106217872A (en) | 2016-07-29 | 2016-07-29 | A kind of 3D printhead |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106217872A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108327245A (en) * | 2018-05-03 | 2018-07-27 | 北京好奇三维科技有限公司 | A kind of microminiature 3D printing head |
| CN109703020A (en) * | 2018-12-21 | 2019-05-03 | 河南筑诚电子科技有限公司 | A kind of double spray heads of 3D printer proximal end charging |
| WO2020135605A1 (en) * | 2018-12-26 | 2020-07-02 | 深圳市越疆科技有限公司 | Printing head and 3d printer |
| CN114434792A (en) * | 2020-10-30 | 2022-05-06 | 深圳市创想三维科技有限公司 | A shower nozzle external member and 3D printer for 3D printer |
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| CN103802314A (en) * | 2013-12-11 | 2014-05-21 | 宁波市铭瑞达激光科技有限公司 | 3D (three dimensional) printing feeding device |
| CN105014973A (en) * | 2015-08-06 | 2015-11-04 | 成都墨之坊科技有限公司 | Intelligent extruder, intelligent 3D printer and printing method |
| CN205130406U (en) * | 2015-10-29 | 2016-04-06 | 武汉市贝恩三维科技有限公司 | Novel 3D of quick assembly disassembly beats printer head |
| CN205202188U (en) * | 2015-11-19 | 2016-05-04 | 浙江韩益机电有限公司 | Three -dimensional shower nozzle of printing |
| CN205997355U (en) * | 2016-07-29 | 2017-03-08 | 深圳市加维科技有限公司 | A kind of 3D printing head |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103802314A (en) * | 2013-12-11 | 2014-05-21 | 宁波市铭瑞达激光科技有限公司 | 3D (three dimensional) printing feeding device |
| CN105014973A (en) * | 2015-08-06 | 2015-11-04 | 成都墨之坊科技有限公司 | Intelligent extruder, intelligent 3D printer and printing method |
| CN205130406U (en) * | 2015-10-29 | 2016-04-06 | 武汉市贝恩三维科技有限公司 | Novel 3D of quick assembly disassembly beats printer head |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108327245A (en) * | 2018-05-03 | 2018-07-27 | 北京好奇三维科技有限公司 | A kind of microminiature 3D printing head |
| CN109703020A (en) * | 2018-12-21 | 2019-05-03 | 河南筑诚电子科技有限公司 | A kind of double spray heads of 3D printer proximal end charging |
| WO2020135605A1 (en) * | 2018-12-26 | 2020-07-02 | 深圳市越疆科技有限公司 | Printing head and 3d printer |
| CN114434792A (en) * | 2020-10-30 | 2022-05-06 | 深圳市创想三维科技有限公司 | A shower nozzle external member and 3D printer for 3D printer |
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Application publication date: 20161214 |